High strength POM particles

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Product Description

Product Attributes

Model No.: Yunnan Yuntianhua POM GM90

Brand: Li Huayi

Place Of Origin: China

Packaging & Delivery

Selling Units	:	Ton
Package Type	:	container
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Product Description

Yunnan Yuntianhua POM GM90, POM plastic - Since the emergence of POM resin, people have never stopped facing challenges in improving its thermal stability. Copolymer POM resin is a product derived from the poor thermal stability of homopolymer POM resin. By introducing a small amount of CH2CH2O units into the CH2O-CH2O molecular chain of homopolymer POM resin, it acts as a chain degradation inhibitor. Although this method effectively improves the thermal stability of POM resin, it also causes significant losses in the physical and mechanical properties of homopolymer POM resin. For example, the tensile strength, bending strength, and bending modulus of copolymer POM resin are reduced by about 10MPa, 10MPa, and 0.4GPa compared to homopolymer POM resin. The loss of its physical and mechanical properties should be more obvious. DuPont, which specializes in the production of homopolymer POM resin, launched 100P in the mid-1990s New standard models such as 500P homopolymer POM resin have been upgraded to the corresponding 100 and 500 models, and the thermal stability of the new products has been significantly improved.

For copolymerized POM resin, since the late 1990s, various enterprises have adopted measures such as reducing water content and improving purity in terms of monomers and co monomers, and changing the co monomer from ethylene oxide to dioxane; In terms of catalysts, measures such as reducing the use of ether complex catalysts, changing catalyst addition methods, adopting new catalysts, and using new deactivating agents for treatment are taken; In terms of post stabilization treatment, the use of different stabilization methods and thermal stabilization systems has significantly improved the product quality of POM resin. Around 2000, due to the increasing awareness of environmental protection among people, the European Union put forward stricter requirements for VOC regulation of related products such as automobiles. Taking this as an opportunity, various POM resin production enterprises continuously explored the reasons for the high formaldehyde volatilization in POM products from various perspectives, as well as the technical methods to reduce formaldehyde decomposition and improve the thermal stability of POM resin, all of which have achieved extremely significant results in improving the quality of POM resin products.

In the application technology of POM resin, in addition to significantly improving the thermal stability of the original model, new models of products such as flame retardant, metallic tone, high-strength and high rigidity, and antibacterial properties have also been introduced one after another. Especially in recent years, people have gained a very clear understanding of the causes and influencing factors of formaldehyde volatilization. For example, from the perspective of POM molecular structure, it has been clarified that the main reason for formaldehyde volatilization is the type and content of its unstable end, and a preliminary quantitative relationship has been established. Moreover, significant progress has been made in improving the thermal stability of POM resin through secondary modification techniques, such as reducing the amount of surface formaldehyde generated in POM products, reducing surface mold fouling during molding, and improving thermal stability during thermal processing. Moreover, specialized materials for large-diameter pipes and bars that are not prone to shrinkage and white core, fibers that improve the rapid crystallization rate of POM, membrane materials, and hollow forming materials are gradually entering the market. In addition, high heat resistance, high strength and high modulus, low strength and low modulus General Grade Polystyrene Polypropylene Polyformaldehyde