Blending modification of "zinc stearate" plastic

In today's article, Qingdao Sainuo polyethylene wax manufacturer takes you to understand the blending and modification knowledge of plastics.

Polymer blend refers to a mixture of two or more homopolymers or copolymers. The polymer components in the polymer blend are mainly physically combined, so the polymer blend is different from the copolymer polymer. However, in the polymer blend, there are inevitably a small number of chemical bonds between different polymer macromolecules, for example, in the melting and mixing process under the action of strong shear force, the macromolecules may be broken due to shearing, resulting in macromolecular radicals, thereby forming a small number of blocks or graft copolymers. In addition, in recent years, the reaction capacity-increasing measures used to strengthen the interfacial bonding between the components involved in the blend polymer will inevitably introduce chemical bonds between the components. There are many types of polymer blends, but generally refer to plastic-to-plastic blends and rubber blends in plastics. For the blending system mixed with a small amount of rubber in the plastic, it is commonly referred to as rubber toughening plastic because of the great improvement in impact performance. The type of polymer blend is divided into binary and multi-polymer blends according to the number of polymer components contained; according to the name of the matrix resin in the polymer blend, it can be divided into polyolefin blends, polyvinyl chloride blends, polycarbonate blends, polyamide blends, etc.; according to the performance characteristics, there are polymer blends such as high temperature resistance, low temperature resistance, flame retardancy, aging resistance, etc.

Although plastics have many excellent properties, there are many shortcomings in the ratio of metal materials, and in some areas with high requirements for comprehensive performance, a single plastic is difficult to meet the requirements. Therefore, the purpose of blending modified plastics is as follows.

　(1) Improve the comprehensive performance of plastics.

　(2) Improve the mechanical properties of plastics, such as strength, low temperature toughness, etc.

　(3) Improve the heat resistance of plastics. The heat distortion temperature of most plastics is not high, and for some parts that work at a certain temperature, general plastics are difficult to do.

Zinc stearate (Xeno)

Pvc foam sheet for the selection of calcium carbonate varieties

(4) Improve processing performance. For example, the molding processability of PPO is poor, and its processing fluidity is greatly improved after adding PS modification.

　(5) Reduce water absorption and improve product size stability. For example, the water absorption of polyamide is large, causing the size of the product to change.

　(6) Improve the combustion resistance of plastics. Most plastics are flammable materials, which are used in electrical and electronic equipment with low safety, and the safety of materials is improved by flame retardant modification.

　(7) Reduce the cost of materials. Plastics, especially engineering plastics, are more expensive. The use of general plastics and engineering plastics blending modification not only reduces the cost of materials, but also improves the molding processability.

　(8) To achieve the functionalization of plastics, improve their performance, such as the small conductivity of plastics, for some needs anti-static, the need for conductive uses, can be blended with conductive polymers, in order to obtain plastic materials with antistatic function, conductive function and electromagnetic shielding function, to meet the requirements of electronics, home appliances, communications, military and so on.

　In short, through blending modification, we can improve the comprehensive performance of plastics, increase the variety of plastics in the case of relatively low investment, expand the use of plastics, reduce the cost of plastics, realize the high performance, refinement, functionalization, specialization and serialization of plastics, promote the development of the plastic industry and polymer materials industry, and also promote the development of high-tech industries such as automobiles, electronics, electrical, home appliances, communications, military, aerospace and so on.

　　Sainuo New Material, 15 years of accumulation, polyethylene wax brand manufacturer, Blue Ocean equity institution listed enterprises. Focus on the research and development and production of lubrication and dispersion systems, including polyethylene wax, oxidized polyethylene wax, polypropylene wax, ebs, zinc stearate and other additives research and development, production and application work. Hotline: [phone].