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Optimization of dibutyltin dilaurate treatment process and its performance in elastomer materials

9月 23rd, 2024 News

Optimization of dibutyltin dilaurate treatment process and its performance in elastomer materials

Introduction

Dibutyltin dilaurate (DBTDL), as an efficient catalyst and stabilizer, is widely used in the production of elastomer materials. This article will discuss the optimization method of DBTDL treatment process and its specific performance in elastomer materials, aiming to improve the performance and production efficiency of the material.

1. Treatment process optimization of dibutyltin dilaurate

  1. Raw material selection and pretreatment

    • High-purity raw materials: Select high-purity dibutyltin oxide and lauric acid as raw materials to ensure product purity and performance.
    • Pretreatment: Pretreatment of raw materials, such as drying, filtration, etc., to remove impurities and improve reaction efficiency.

  2. Optimization of reaction conditions

    • Temperature control: Strictly control the reaction temperature, usually within the range of 120-150°C, to ensure the smooth progress of the reaction.
    • Stirring speed: Maintain an appropriate stirring speed to ensure that the raw materials are fully mixed and improve reaction efficiency.
    • Reaction time: Adjust the reaction time according to the actual situation to ensure that the reaction is completed, usually 2-4 hours.
    • Pressure control: In a closed reaction system, control the appropriate reaction pressure to prevent the loss of volatile substances.

  3. Optimization of catalyst addition amount

    • Experimental design: Determine the amount of catalyst added through orthogonal experimental design. Usually, the amount of DBTDL added is between 0.1% and 1%.
    • Performance test: Determine the amount of elastomer added by testing the properties of elastomer materials at different amounts, such as tensile strength, elongation at break, etc.

  4. Post-processing and purification

    • Dehydration: The water produced during the reaction can be removed through a water separator to promote the reaction toward the product.
    • Refining: The product is further purified through methods such as distillation or extraction to remove residual raw materials and other impurities.
    • Drying: Dry the refined DBTDL in a vacuum drying oven to remove residual moisture and solvent.
    • Packaging: Seal and package the dried DBTDL to prevent it from contact with moisture in the air.

2. Performance of dibutyltin dilaurate in elastomer materials

  1. Improve vulcanization performance

    • Accelerate the vulcanization reaction: DBTDL can significantly accelerate the vulcanization reaction, shorten the vulcanization time, and improve production efficiency.
    • Increase the degree of vulcanization: DBTDL helps to increase the degree of vulcanization, form a more uniform vulcanization network structure, and improve the performance of the material.

  2. Improve physical and mechanical properties

    • Tensile strength: After adding DBTDL, the tensile strength of elastomer materials is significantly improved, usually by 10%-20%.
    • Elongation at break: The addition of DBTDL can increase the elongation at break of elastomer materials and enhance the flexibility and tear resistance of the material.
    • Hardness: An appropriate amount of DBTDL can adjust the hardness of elastomer materials to meet different application requirements.

  3. Improve thermal stability

    • Thermal Aging Performance: DBTDL can improve the thermal stability of elastomer materials and reduce performance degradation during thermal aging.
    • High temperature performance: Under high temperature conditions, DBTDL can maintain stable material performance and extend the service life of the material.

  4. Improve processing performance

    • Fluidity: DBTDL can improve the fluidity of elastomer materials and improve operability during processing.
    • Surface finish: After adding DBTDL, the surface finish of the elastomer material is improved and surface defects are reduced.

3. Experimental analysis and case studies

  1. Experimental Design

    • Raw material selection: Use high-purity dibutyltin oxide and lauric acid.
    • Reaction conditions: Set the reaction temperature to 130°C and the reaction time to 3 hours.
    • Catalyst addition amount: Test the DBTDL addition amount of 0.1%, 0.5% and 1.0% respectively.
    • Post-processing: Refining the product by distillation and vacuum drying.

  2. Experimental results

    • Purity Testing: HPLC test results show that the purity of DBTDL reaches 99.5%.
    • Moisture test: The Karl Fischer method test results show that the moisture content in the product is 0.1%.
    • Physical property testing: Appearance is colorless and transparent liquid, density is 1.02 g/cm³, viscosity is 150 mPa·s.

  3. Performance testing

    • Tensile strength: After adding 0.5% DBTDL, the tensile strength of the elastomer material increased by 15%.
    • Breaking elongationElongation: After adding 0.5% DBTDL, the elongation at break of the elastomer material increased by 20%.
    • Hardness: After adding 0.5% DBTDL, the hardness of the elastomer material is moderate to meet the application requirements.
    • Thermal stability: After adding 0.5% DBTDL, the thermal aging performance of the elastomer material is significantly improved, and the high temperature performance is stable.

  4. Application Cases

    • High-performance tires: A tire manufacturer uses elastomer materials with 0.5% DBTDL added in the production of high-performance tires. Test results show that the tire’s wear resistance and tear resistance are significantly improved, and its service life is extended.
    • Sealing materials: A sealing material manufacturer used elastomer materials with 0.5% DBTDL added in the production process. The test results show that the sealing performance and aging resistance of the sealing material are significantly improved, meeting customer needs.

4. Conclusion and outlook

Through the optimization of the treatment process of dibutyltin dilaurate and its application in elastomer materials, we have reached the following conclusions:

  1. Process Optimization: By optimizing raw material selection, reaction conditions, catalyst addition, post-treatment and other steps, the purity and performance of DBTDL can be significantly improved.
  2. Performance improvement: The application of DBTDL in elastomer materials can significantly improve the tensile strength, elongation at break, hardness and thermal stability of the material, and improve the processing performance of the material.
  3. Wide application: DBTDL has excellent application performance in high-performance tires, sealing materials and other fields, and has broad application prospects.

Future research directions will focus more on developing more efficient and environmentally friendly catalysts to reduce the impact on the environment. In addition, by further optimizing the usage conditions of DBTDL, such as addition amount, reaction temperature, etc., its application effect in elastomer materials can be further improved and provide technical support for the development of related industries.

5. Suggestions

  1. Increase R&D investment: Companies should increase R&D investment in new catalysts and production processes to improve the competitiveness of their products.
  2. Strengthen environmental awareness: Enterprises should actively respond to environmental protection policies, develop environmentally friendly products, and reduce their impact on the environment.
  3. Expand application fields: Enterprises should actively expand the application of DBTDL in other fields, such as medical care, construction, etc., to find new growth points.
  4. Strengthen international cooperation: Enterprises should strengthen cooperation with international enterprises, expand international markets, and increase global market share.

This article provides a detailed introduction to the optimization of the dibutyltin dilaurate treatment process and its application in elastomeric materials. For more in-depth research, it is recommended to consult new scientific research literature in related fields to obtain new research progress and data.

Extended reading:

cyclohexylamine

Tetrachloroethylene Perchloroethylene CAS:127-18-4

NT CAT DMDEE

NT CAT PC-5

N-Methylmorpholine

4-Formylmorpholine

Toyocat TE tertiary amine catalyst Tosoh

Toyocat RX5 catalyst trimethylhydroxyethyl ethylenediamine Tosoh

NT CAT DMP-30

NT CAT DMEA

Research on the application of dibutyltin dilaurate as vulcanizing agent in tire manufacturing industry

9月 23rd, 2024 News

Research on the application of dibutyltin dilaurate as vulcanizing agent in tire manufacturing industry

Introduction

Dibutyltin dilaurate (DBTDL), as an efficient catalyst and vulcanizing agent, is widely used in the tire manufacturing industry. This article will discuss the specific application of DBTDL as a vulcanizing agent in tire manufacturing, including its mechanism of action, experimental analysis and performance testing, as well as future development prospects.

1. Vulcanization mechanism of dibutyltin dilaurate

  1. Overview of vulcanization reactions

    • Vulcanization reaction: Vulcanization refers to the process of adding sulfur or other cross-linking agents to rubber to form a three-dimensional network structure through a chemical reaction at a certain temperature. This process can significantly improve the physical and mechanical properties of rubber, such as hardness, tensile strength and wear resistance.
    • Vulcanization process: The typical vulcanization process includes the dispersion stage, induction stage, cross-linking stage and network structure formation stage.

  2. Vulcanization of DBTDL

    • Accelerate the vulcanization reaction: As a vulcanizing agent, DBTDL can significantly accelerate the vulcanization reaction, shorten the vulcanization time, and improve the vulcanization efficiency.
    • Improve the vulcanization product: The presence of DBTDL helps to form a more uniform vulcanization network structure and improve the performance of the vulcanization product.

  3. Analysis of vulcanization mechanism

    • Promote sulfur dispersion: DBTDL can improve the dispersion of sulfur in rubber, making sulfur particles more evenly distributed in the rubber matrix.
    • Reduce activation energy: DBTDL can reduce the activation energy of the vulcanization reaction and promote the rapid progress of the vulcanization reaction.
    • Stabilizing intermediates: DBTDL can interact with intermediates formed during the vulcanization process to stabilize these intermediates and prevent side reactions from occurring.

2. Experimental design and analysis

  1. Experimental materials

    • Natural Rubber (NR): As a base material.
    • Sulfur: Acts as a cross-linking agent.
    • DBTDL: As a vulcanizing agent.
    • Other additives: such as accelerators, fillers, etc.

  2. Experimental Equipment

    • Open mixer: used for mixing rubber.
    • Plate vulcanizer: used to vulcanize rubber.
    • Electronic universal testing machine: used to test the mechanical properties of vulcanized rubber.
    • Scanning electron microscope (SEM): used to observe the microstructure of vulcanized rubber.

  3. Experimental steps

    • Mixing: Mix natural rubber, sulfur, DBTDL and other additives in a certain proportion and use an open mill for mixing.
    • Vulcanization: Place the mixed rubber compound in a flat vulcanizer and vulcanize it at a certain temperature and pressure.
    • Testing: After vulcanization is completed, use an electronic universal testing machine to test the mechanical properties of the vulcanized rubber, such as tensile strength, elongation at break, etc.
    • Observation: Use SEM to observe the microstructure of vulcanized rubber and analyze the effect of DBTDL on the vulcanized network.

3. Experimental results and analysis

  1. Vulcanization time comparison

    • Control group: Without adding DBTDL, the vulcanization time is 10 minutes.
    • Experimental group: After adding 0.5% DBTDL, the vulcanization time was shortened to 7 minutes.
    • Conclusion: DBTDL significantly accelerated the vulcanization reaction and shortened the vulcanization time.

  2. Mechanical property testing

    • Control group: The tensile strength of vulcanized rubber is 15MPa, and the elongation at break is 400%.
    • Experimental group: After adding 0.5% DBTDL to the vulcanized rubber, the tensile strength is increased to 18MPa, and the elongation at break is increased to 450%.
    • Conclusion: The addition of DBTDL improves the mechanical properties of vulcanized rubber.

  3. Microstructure Observation

    • Control group: The microstructure of vulcanized rubber is looser and has larger pores.
    • Experimental group: The vulcanized rubber after adding 0.5% DBTDL has a denser microstructure and reduced pores.
    • Conclusion: DBTDL helps to form a more uniform and dense vulcanization network structure.

  4. Thermal Stability Test

    • Control group: After aging for 24 hours at 150°C, the tensile strength of vulcanized rubber decreased by 15%.
    • Experimental group: After adding 0.5% DBTDL to the vulcanized rubber, the tensile strength only decreased by 5% after aging at 150°C for 24 hours.
    • Conclusion: DBTDL improves the thermal stability of vulcanized rubber.

4. Application case analysis

  1. High Performance Tires

    • Case Background: A tire manufacturer uses a vulcanizing agent added with 0.5% DBTDL in the production of high-performance tires.
    • Application effect: The test results show that the wear resistance and tear resistance of the tire are significantly improved, and the service life is extended.
    • Customer feedback: Users reported that the tire mileage increased by 10% and the overall performance was excellent.

  2. Off-road tires

    • Case Background: An off-road tire manufacturer used a vulcanizing agent added with 0.5% DBTDL in the production process.
    • Application effect: Test results show that the tire’s grip and impact resistance have been significantly improved, making it adaptable to various complex road conditions.
    • Customer Feedback: Users reported that the tires perform very well in harsh road conditions and are highly reliable.

5. Future development prospects

  1. Environmentally friendly vulcanizing agent

    • Bio-based vulcanizing agents: Develop vulcanizing agents based on bio-based raw materials to reduce the impact on the environment.
    • Non-toxic or low-toxic vulcanizing agents: Research and develop non-toxic or low-toxic vulcanizing agents to improve product safety.

  2. High Performance Tires

    • Nanomaterials: Use nanomaterials to improve the performance of vulcanized rubber and improve the wear resistance and tear resistance of tires.
    • Smart tires: Develop smart tires with self-cleaning and self-repair functions to improve tire service life and safety.

  3. Sustainable Development

    • Circular economy: Promote the recycling and reuse of vulcanized rubber, reduce resource waste, and achieve sustainable development.
    • Green production: Use green production technology to reduce energy consumption and emissions during the production process and improve production efficiency.

6. Conclusions and suggestions

Through research on the application of dibutyltin dilaurate as a vulcanizing agent in tire manufacturing, we have drawn the following conclusions:

  1. Remarkable vulcanization effect: DBTDL can significantly accelerate the vulcanization reaction, shorten the vulcanization time, and improve production efficiency.
  2. Obvious performance improvement: The addition of DBTDL improves the mechanical properties, thermal stability and microstructure uniformity of vulcanized rubber.
  3. Wide application: DBTDL has excellent performance in high-performance tires and off-road tires and other fields, and has broad application prospects.

Future research directions will focus more on developing more efficient and environmentally friendly vulcanizing agents to reduce the impact on the environment. In addition, by further optimizing the usage conditions of DBTDL, such as addition amount, reaction temperature, etc., its application effect in the tire manufacturing industry can be further improved and technical support can be provided for the development of related industries.

7. Suggestions

  1. Increase R&D investment: Enterprises should increase R&D investment in new vulcanizing agents and production processes to improve the competitiveness of their products.
  2. Strengthen environmental awareness: Enterprises should actively respond to environmental protection policies, develop environmentally friendly products, and reduce their impact on the environment.
  3. Expand application fields: Enterprises should actively expand the application of DBTDL in other fields, such as medical care, construction, etc., to find new growth points.
  4. Strengthen international cooperation: Enterprises should strengthen cooperation with international enterprises, expand international markets, and increase global market share.

This article provides a detailed introduction to the application research of dibutyltin dilaurate as a vulcanizing agent in the tire manufacturing industry. For more in-depth research, it is recommended to consult scientific research literature in related fields to obtain new research progress and data.

Extended reading:

cyclohexylamine

Tetrachloroethylene Perchloroethylene CAS:127-18-4

NT CAT DMDEE

NT CAT PC-5

N-Methylmorpholine

4-Formylmorpholine

Toyocat TE tertiary amine catalyst Tosoh

Toyocat RX5 catalyst trimethylhydroxyethyl ethylenediamine Tosoh

NT CAT DMP-30

NT CAT DMEA

Analysis of performance comparison between dibutyltin dilaurate and other metal salt catalysts

9月 23rd, 2024 News

Analysis of performance comparison between dibutyltin dilaurate and other metal salt catalysts

Introduction

Dibutyltin dilaurate (DBTDL), as an efficient catalyst, is widely used in many industrial fields. However, there are many other metal salt catalysts on the market, such as organic tin compounds, organic lead compounds, organic zinc compounds, etc. This article will make a detailed comparison of the performance of DBTDL and other metal salt catalysts to help readers better understand and select appropriate catalysts.

1. Performance characteristics of dibutyltin dilaurate (DBTDL)

  1. Catalytic efficiency

    • Efficiency: DBTDL has high catalytic efficiency and can significantly accelerate a variety of chemical reactions, such as esterification reactions, transesterification reactions, epoxidation reactions, etc.
    • Wide range of application: DBTDL is suitable for a variety of organic synthesis reactions, especially in rubber vulcanization and polyurethane synthesis.

  2. Stability

    • Thermal stability: DBTDL has good thermal stability at high temperatures and can maintain catalytic activity at higher temperatures.
    • Chemical stability: DBTDL maintains good chemical stability in both acidic and alkaline environments and is not easily decomposed.

  3. Environmental Impact

    • Toxicity: DBTDL has a certain toxicity, but its toxicity is lower than other organometallic catalysts.
    • Biodegradability: DBTDL has good biodegradability and has relatively little impact on the environment.

  4. Cost

    • Moderate cost: The production cost of DBTDL is relatively moderate and has high cost performance.

2. Performance characteristics of other metal salt catalysts

  1. Organotin compounds

    • Catalytic efficiency: Organotin compounds (such as dioctyltin dilaurate) also have efficient catalytic properties and are suitable for a variety of organic synthesis reactions.
    • Stability: Organotin compounds have good thermal stability at high temperatures, but may decompose in certain acidic environments.
    • Environmental impact: Organotin compounds are relatively toxic and have a greater impact on the environment.
    • Cost: The production cost of organotin compounds is high and the price/performance ratio is low.

  2. Organic lead compounds

    • Catalytic efficiency: Organic lead compounds (such as dilead dilaurate) have high catalytic efficiency and are suitable for certain specific organic synthesis reactions.
    • Stability: Organic lead compounds have good thermal stability at high temperatures, but may decompose in certain acidic environments.
    • Environmental impact: Organic lead compounds are extremely toxic and have a great impact on the environment and human health, and their use is strictly restricted.
    • Cost: The production cost of organic lead compounds is high and the price/performance ratio is low.

  3. Organozinc compounds

    • Catalytic efficiency: Organozinc compounds (such as dizinc dilaurate) have moderate catalytic efficiency and are suitable for certain specific organic synthesis reactions.
    • Stability: Organozinc compounds have good thermal stability at high temperatures, but may decompose in certain acidic environments.
    • Environmental Impact: Organozinc compounds are relatively low in toxicity and have little impact on the environment.
    • Cost: The production cost of organic zinc compounds is low and the price-performance ratio is high.

  4. Organobismuth compounds

    • Catalytic efficiency: Organic bismuth compounds (such as dibismuth dilaurate) have moderate catalytic efficiency and are suitable for certain specific organic synthesis reactions.
    • Stability: Organobismuth compounds have good thermal stability at high temperatures, but may decompose in certain acidic environments.
    • Environmental impact: Organobismuth compounds have relatively low toxicity and have little impact on the environment.
    • Cost: The production cost of organic bismuth compounds is moderate and the price-performance ratio is high.

3. Performance comparison analysis

  1. Catalytic efficiency

    • DBTDL vs organotin compounds: Both DBTDL and organotin compounds have efficient catalytic properties, but DBTDL has a wider scope of application and is suitable for more organic synthesis reactions.
    • DBTDL vs organic lead compounds: The catalytic efficiency of DBTDL is slightly lower than that of organic lead compounds, but considering the high toxicity and environmental impact of organic lead compounds, DBTDL has more advantages.
    • DBTDL vs organozinc compounds: DBTDL has a higher catalytic efficiency than organozinc compounds and is suitable for more types of organic synthesis reactions.
    • DBTDL vs organobismuth compounds: The catalytic efficiency of DBTDL is slightly higher than that of organobismuth compounds, but the two perform equally well in some specific reactions.

  2. Stability

    • DBTDL vs organotin compounds: Both DBTDL and organotin compounds have good thermal stability at high temperatures, but in terms of stability in acidic environments, DBTDL is better.
    • DBTDL vs organic lead compounds: DBTDL is more stable than organic lead compounds in high temperatures and acidic environments.
    • DBTDL vs organozinc compounds: Both DBTDL and organozinc compounds have good thermal stability at high temperatures, but in terms of stability in acidic environments, DBTDL is better.
    • DBTDL vs organic bismuth compounds: Both DBTDL and organic bismuth compounds have good thermal stability at high temperatures, but in terms of stability in acidic environments, DBTDL is better.

  3. Environmental Impact

    • DBTDL vs organotin compounds: DBTDL has relatively low toxicity, good biodegradability, and less impact on the environment; while organotin compounds have higher toxicity and less impact on the environment. big.
    • DBTDL vs organic lead compounds: DBTDL is much less toxic than organic lead compounds and has less impact on the environment and human health; the high toxicity and environmental impact of organic lead compounds make their use strictly limit.
    • DBTDL vs organozinc compounds: DBTDL and organozinc compounds are both relatively low in toxicity and have less impact on the environment, but DBTDL is more biodegradable.
    • DBTDL vs organobismuth compounds: Both DBTDL and organobismuth compounds are relatively low in toxicity and have less impact on the environment, but DBTDL is more biodegradable.

  4. Cost

    • DBTDL vs organotin compounds: The production cost of DBTDL is relatively moderate and the cost performance is high; while the production cost of organotin compounds is high and the cost performance is low.
    • DBTDL vs organic lead compounds: The production cost of DBTDL is relatively moderate and the cost performance is high; while the production cost of organic lead compounds is high and the cost performance is low.
    • DBTDL vs organozinc compounds: The production cost of DBTDL is relatively moderate and the cost performance is high; while the production cost of organozinc compounds is low and the cost performance is high.
    • DBTDL vs organic bismuth compounds: The production cost of DBTDL is relatively moderate and the cost performance is high; while the production cost of organobismuth compounds is moderate and the cost performance is high.

4. Application case analysis

  1. Rubber vulcanization

    • DBTDL: In rubber vulcanization, DBTDL can significantly accelerate the vulcanization reaction, shorten the vulcanization time, and improve the mechanical properties and thermal stability of vulcanized rubber.
    • Organotin compounds: Organotin compounds also show efficient catalytic performance in rubber vulcanization, but considering its high toxicity and environmental impact, DBTDL has more advantages.
    • Organolead compounds: Due to their high toxicity and environmental impact, the application of organolead compounds in rubber vulcanization is strictly limited.
    • Organozinc compounds: Organozinc compounds show moderate catalytic properties in rubber vulcanization and are suitable for some specific rubber products.
    • Organobismuth compounds: Organobismuth compounds show moderate catalytic properties in rubber vulcanization and are suitable for certain specific rubber products.

  2. Polyurethane synthesis

    • DBTDL: In polyurethane synthesis, DBTDL can significantly accelerate the reaction between isocyanate and polyol, improving the performance and production efficiency of polyurethane.
    • Organotin compounds: Organotin compounds also show efficient catalytic performance in polyurethane synthesis, but considering its high toxicity and environmental impact, DBTDL has more advantages.
    • Organolead compounds: Due to their high toxicity and environmental impact, the application of organolead compounds in polyurethane synthesis is strictly limited.
    • Organozinc compounds: Organozinc compounds show moderate catalytic properties in polyurethane synthesis and are suitable for certain specific polyurethane products.
    • Organobismuth compounds: Organobismuth compounds show moderate catalytic properties in polyurethane synthesis and are suitable for certain specific polyurethane products.

5. Conclusions and suggestions

By comparing the performance of dibutyltin dilaurate (DBTDL) and other metal salt catalysts, we can draw the following conclusions:

  1. Catalytic efficiency: DBTDL has efficient catalytic performance and is suitable for a variety of organic synthesis reactions, especially in rubber vulcanization and polyurethane synthesis.
  2. Stability: DBTDL has good stability at high temperatures and acidic environments, and is suitable for various complex reaction conditions.
  3. Environmental impact: DBTDL has relatively low toxicity, good biodegradability, and small impact on the environment.
  4. Cost: The production cost of DBTDL is moderate and the price/performance ratio is high.

Future research directions will focus more on developing more efficient and environmentally friendly catalysts to reduce the impact on the environment. In addition, by further optimizing the usage conditions of DBTDL, such as the amount of addition, reaction temperature, etc., it can beFurther improve its application effects in various industrial fields and provide technical support for the development of related industries.

6. Suggestions

  1. Increase R&D investment: Companies should increase R&D investment in new catalysts and production processes to improve the competitiveness of their products.
  2. Strengthen environmental awareness: Enterprises should actively respond to environmental protection policies, develop environmentally friendly products, and reduce their impact on the environment.
  3. Expand application fields: Enterprises should actively expand the application of DBTDL in other fields, such as medical care, construction, etc., to find new growth points.
  4. Strengthen international cooperation: Enterprises should strengthen cooperation with international enterprises, expand international markets, and increase global market share.

Extended reading:

cyclohexylamine

Tetrachloroethylene Perchloroethylene CAS:127-18-4

NT CAT DMDEE

NT CAT PC-5

N-Methylmorpholine

4-Formylmorpholine

Toyocat TE tertiary amine catalyst Tosoh

Toyocat RX5 catalyst trimethylhydroxyethyl ethylenediamine Tosoh

NT CAT DMP-30

NT CAT DMEA

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