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Application of dibutyltin monooctyl maleate in soft PVC

7月 23rd, 2024 News

Introduction

Dibutyltin monooctyl maleate (DBMS), as a high-performance organic tin heat stabilizer, is widely used in polyvinyl chloride (PVC) processing, especially in the production of soft PVC products. Its unique advantages make it the preferred material in the industry. This article aims to explore the application characteristics, mechanism of action and market prospects of DBMS in soft PVC.

Characteristics and challenges of soft PVC

Soft PVC obtains flexibility and elasticity by adding plasticizers such as phthalates, and is widely used in films, wires and cables, toys, medical supplies and other fields. However, soft PVC faces the risk of thermal and oxidative degradation during processing and use, which can lead to reduced material performance, discoloration, brittleness and other problems. Therefore, choosing the right heat stabilizer is crucial to extending the service life of soft PVC.

The mechanism and advantages of DBMS

The application of dibutyltin monooctyl maleate in soft PVC is mainly based on its following mechanism of action and characteristics:

  1. HCl absorption capacity: DBMS can effectively capture the hydrogen chloride (HCl) released during the decomposition of PVC, preventing it from further catalyzing the degradation reaction, thereby protecting the integrity of the PVC molecular chain.
  2. Free radical scavenging: During the thermal processing of PVC, DBMS can capture free radicals and prevent them from causing chain cleavage, thus improving the thermal stability of PVC.
  3. Antioxidant performance: DBMS can also provide a certain degree of antioxidant protection to prevent PVC from deteriorating due to oxidation during long-term use.
  4. Good compatibility: DBMS has good compatibility with PVC and plasticizers and will not affect the transparency and softness of soft PVC.

Application examples in soft PVC

In the production of soft PVC films, the addition of DBMS can significantly improve the film’s transparency and anti-yellowing ability, and extend its life for outdoor use. In the manufacturing of wire and cable insulation layers, DBMS can ensure the thermal stability of the material during processing and long-term use, and avoid electrical performance degradation caused by thermal degradation. In addition, the low toxicity of DBMS makes it an ideal choice among medical-grade soft PVC products that can meet strict hygiene and safety standards.

Market trends and prospects

With the increasing global awareness of environmental protection and health, the use of organotin compounds has been subject to certain restrictions. However, DBMS still has its place in some specific soft PVC applications due to its lower toxicity levels and excellent performance. In the future, the DBMS market will be affected by two factors: First, stricter environmental regulations may push the industry to shift to greener stabilizers; second, technological progress may lead to the development of alternatives with better performance and better environmental protection. . Despite the challenges, demand for DBMS in high-performance and specialty applications will continue, especially in soft PVC products with extremely high requirements for transparency, stability and safety.

Conclusion

Dibutyltin monooctyl maleate is an ideal heat stabilizer for soft PVC. Through its unique chemical properties and mechanism of action, it is an ideal thermal stabilizer for soft PVC. High-quality PVC products provide necessary protection, extend their service life, and improve product quality and performance. Facing the dual challenges of market and technology, the application of DBMS will pay more attention to its value in specific fields, while seeking harmonious coexistence with environmental protection trends to achieve sustainable development.

This analysis is based on current industry knowledge and practice. Taking into account the rapid development of the soft PVC market and stabilizer technology, future product formulas and market strategies may need to be adjusted based on new scientific research results and environmental protection requirements.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Comparison between dibutyltin monooctyl maleate and other heat stabilizers

7月 23rd, 2024 News

Introduction

Polyvinyl chloride (PVC) is one of the widely used plastics. The selection of heat stabilizer during its processing is crucial to prevent thermal degradation and oxidation and maintain the performance of the material. Dibutyltin monooctyl maleate (DBMS) is a kind of organotin heat stabilizer. Compared with other types of heat stabilizers, it has unique performance and application range. This article will discuss the differences between DBMS and calcium zinc, lead salt, barium zinc and composite heat stabilizers, as well as their respective characteristics and applicable scenarios.

Organotin heat stabilizer: dibutyltin monooctyl maleate (DBMS)

DBMS is known for its excellent thermal stability and transparency. It is especially suitable for PVC products with high requirements on transparency and color stability, such as films, hoses, cables, etc. Its advantages are:

  • High thermal stability: Effectively inhibits the formation of HCl and prevents further degradation of PVC chains.
  • Good transparency: Maintain the original color of PVC products, suitable for transparent or light-colored products.
  • No sulfide pollution: No sulfide will be introduced during processing, maintaining the purity of the product.
  • Lubricity: Provides slight internal lubrication effect to improve PVC melt fluidity.

Calcium zinc heat stabilizer

Calcium zinc heat stabilizers are a non-toxic, environmentally friendly alternative suitable for food contact and medical applications. Their main advantages include:

  • Environmentally friendly: Contains no heavy metals and complies with RoHS and REACH regulations.
  • Biocompatibility: Suitable for medical and food packaging fields.
  • Antistatic: Certain formulations provide antistatic properties.
  • Cost-effectiveness: Lower cost compared to organotin.

However, the thermal stability and transparency of calcium-zinc heat stabilizers are generally not as good as those of organotin, especially under high-temperature processing conditions.

Lead salt heat stabilizer

Lead salt was once a commonly used heat stabilizer in the PVC industry, with excellent thermal stability and cost-effectiveness. But the main disadvantages of lead salt are:

  • Environmental and Health Risks: Contains lead, which is harmful to the environment and human health.
  • Sulfide pollution: It is easy to cause sulfide pollution, which limits its application in transparent products.
  • Color Stability: May cause discoloration of the product.

Barium zinc heat stabilizer

Barium-zinc heat stabilizer combines the environmental protection properties of calcium and zinc with high thermal stability, and is an intermediate option between lead salts and organotin. Their advantages include:

  • Environmentally friendly: Lead-free, reducing environmental and health risks.
  • Better thermal stability: Better than calcium zinc, but slightly lower than organotin.
  • Cost: Between calcium zinc and organotin.

Composite heat stabilizer

Composite heat stabilizers combine the advantages of different types of heat stabilizers, usually containing organotin, calcium zinc or barium zinc, as well as auxiliary stabilizers such as epoxy compounds and antioxidants. Their design goals are:

  • Comprehensive performance: Provides higher thermal stability, processing performance and color stability.
  • Flexibility: Adapt formulations to different applications to meet specific needs.
  • Environmental adaptability: Ingredients can be adjusted according to environmental regulations to meet various market requirements.

Comparison summary

  • Performance comparison: Organotins such as DBMS are leading in terms of thermal stability and transparency, but the cost is higher and environmental health issues are worthy of concern.
  • Environmental protection comparison: Calcium zinc and barium zinc heat stabilizers are better in terms of environmental protection, but thermal stability and cost-effectiveness need to be weighed.
  • Application comparison: DBMS is suitable for applications with high performance requirements, while calcium zinc and barium zinc are more suitable for applications with high sensitivity to cost and environmental protection.

Conclusion

The selection of dibutyltin monooctyl maleate (DBMS) and other thermal stabilizers should be based on the requirements of the specific application, including but not limited to thermal Stability, transparency, cost, environmental protection and processing performance. As the industry attaches great importance to sustainable development, the research and development of heat stabilizers will focus more on improving performance while reducing environmental impact. In the future, more new stabilizers with high performance and low environmental impact may emerge.

The above comparison is based on existing technology and industry knowledge. With the advancement of new materials and technology in the future, the performance and market structure of heat stabilizers may change. Manufacturers and end users should continue to monitor industry trends to make the best product choices.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

Dibutyltinoctyl esters: chemical properties and applications

7月 23rd, 2024 News

Introduction

Dibutyltinoctyl ester compounds are an important class of organotin compounds that are widely used in the plastics industry, especially as heat stabilizers in polyvinyl chloride (PVC) processing. Their chemical structure and properties allow these compounds to play key roles in several industrial sectors. This article will delve into the chemical properties, synthesis routes, application fields of dibutyltinoctyl ester compounds and their impact on the environment and health.

Chemical Properties

The general structural formula of dibutyltinoctyl ester compounds can be expressed as R1R2Sn(OR3)2, where R1 and R2 usually represent butyl (Bu), and R3 represents an octyl ester group (such as isooctyl ester). These compounds are colorless to light yellow transparent liquids with good thermal and chemical stability. Their molecular structure enables them to effectively react with hydrogen chloride (HCl) in PVC, inhibiting the degradation of PVC during heating, thereby maintaining the physical properties and appearance of PVC products.

Synthetic pathway

Dibutyltin octyl ester compounds can be synthesized in a variety of ways. A common method is to react dibutyltin oxide with an octyl ester-based alcohol or acid. For example, dibutyltin oxide reacts with isooctyl thioglycolate to form bis(isooctylthioglycolate) dibutyltin. These reactions are usually carried out under specific temperature and pressure conditions, sometimes requiring the use of catalysts to increase yield and purity.

Application fields

  1. PVC heat stabilizer: As a heat stabilizer, dibutyltinoctyl ester compounds are widely used in the processing of PVC products, especially soft PVC and products requiring high transparency. They can effectively prevent thermal degradation of PVC during processing and maintain the transparency and color stability of products.
  2. Catalyst: In organic synthesis, these compounds can also be used as catalysts to participate in various chemical reactions, such as the curing process of polysiloxane.
  3. Coatings and Inks: As additives, they can improve the weather resistance and chemical stability of coatings and are used in the formulation of high-end coatings and inks.

Environmental and health impacts

Although dibutyltinoctyl esters are widely used in industry, their potential effects on the environment and human health have also raised concerns. Organotin compounds, including dibutyltin, have been shown to be toxic to aquatic life and may pose risks to human health, particularly with long-term exposure. Therefore, many countries and regions have implemented regulations that limit or prohibit the use of certain organotin compounds, promoting the development of safer alternatives.

Market trends and future prospects

With the increasing global awareness of environmental protection and health and safety, the use of dibutyltinoctyl ester compounds is facing more and more restrictions . Market trends show that the industry is actively looking for equivalent but more environmentally friendly alternatives. R&D efforts are focused on developing new heat stabilizers with low toxicity and high stability to meet future industry needs and regulatory requirements.

Conclusion

Dibutyltinoctyl ester compounds occupy an important position in plastic processing and other industrial fields due to their unique chemical properties and application properties. However, their potential impact on the environment and health has prompted the industry to seek more sustainable solutions. Future research and development will be dedicated to balancing performance needs with environmental responsibility and pushing the industry in a greener direction.

The above content is based on existing knowledge and public information. Taking into account the continuous progress of science and technology, new research and applications on dibutyltinoctyl ester compounds may need to refer to new scientific literature and industry reports.

Extended reading:

CAS:2212-32-0 – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co., LTD

N,N-Dicyclohexylmethylamine – Manufacturer of N,N-Dicyclohexylmethylamine and N,N-Dimethylcyclohexylamine – Shanghai Ohans Co ., LTD

bismuth neodecanoate/CAS 251-964-6 – Amine Catalysts (newtopchem.com)

stannous neodecanoate catalysts – Amine Catalysts (newtopchem.com)

polyurethane tertiary amine catalyst/Dabco 2039 catalyst – Amine Catalysts (newtopchem.com)

DMCHA – morpholine

N-Methylmorpholine – morpholine

Polycat 41 catalyst CAS10294-43-5 Evonik Germany – BDMAEE

Polycat DBU catalyst CAS6674-22-2 Evonik Germany – BDMAEE

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