Xining Elastoflex W 5666/103 PUR-MDI, material report
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It can be divided into long glass fiber strong nylon prepared by usage and short glass fiber strong nylon prepared by mixing short-cut fibers, or continuous fiber introduction into a twin-screw extruder for continuous shearing and mixing. On the surface, this toughness modification technology is not difficult. Just add rubber toughener to nylon 66 raw material. In fact, the knowledge inside is great. Just like cooking, cooking is not the same as adding seasonings to the pot. Wok, why are some delicious and some unpalatable, right? But it is quite common in conventional products, which contain more oxygen; more cylinder oil is mixed into vacuum quenching oil. ,, the study found that, under the same crystallinity, the dry heat shaped sample absorbs less water than the shaped one.
Material performance
1. It is a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene. The melt adhesion is enhanced, the melt viscosity is reduced, and the performance is unchanged compared with polytetrafluoroethylene. This kind of resin can be directly processed into products by ordinary thermoplastic molding methods.
2. The long-term use temperature is -80-260 degrees. It has excellent chemical resistance, corrosion resistance to all chemicals, the lowest friction coefficient among plastics, and good electrical properties. Its electrical insulation is not affected by temperature. Influence, known as the “Plastic King”.
3. Its chemical resistance is similar to polytetrafluoroethylene and better than vinylidene fluoride.
4. Its creep resistance and compressive strength are better than PTFE, with high tensile strength and elongation of 100-300%. Good dielectric properties and excellent radiation resistance. High flame retardancy.
5. Non-toxic: It is physiologically inert and can be implanted in the human body.
V0 level
1. Suitable for making corrosion-resistant parts, wear-reducing parts, sealing parts, insulating parts and parts.
2. High-temperature wire and cable insulation, anti-corrosion equipment, sealing materials, pump valve bushings, and chemical containers.
Molding performance 1. Crystalline material, low moisture absorption. It can be processed into products by the usual processing methods of thermoplastics.
3. Poor fluidity, easy to decompose, and produce corrosive gas during decomposition. It is advisable to strictly control the molding temperature not to exceed 475 degrees, the mold should be heated to 150-200 degrees, and the pouring system should have low resistance to material flow.
4. Translucent pellets, injection molding and extrusion molding. The molding temperature is 350-400 degrees, and the temperature above 475 degrees is likely to cause discoloration or air bubbles. And pay attention to demoulding will be more difficult.
5. Because the molten material has a corrosive effect on the metal, the mold needs to be electroplated with chromium for long-term production.
PFA FEP PTFE has similar chemical properties, but FEP can only be used below 200 degrees, and PTFE cannot be injection molded.
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Xining Elastoflex W 5666/103 PUR-MDI, material report
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Generally it needs to be realized in resin synthesis, because it is not widely used in polyamide plastic processing. Among plastics, the consumption of polypropylene accounts for 37% of the total, followed by polyurethane, butadiene-benzene plastics, composite materials, high-density poly, polycarbonate and poly, because these materials have easy forming and processing properties. , Compared with other materials, the price is cheaper and easily available. Since the glass fiber is oriented along the flow direction during injection molding, the mechanical properties and shrinkage rate are strong in the orientation direction, and the product is deformed and warped. Therefore, when the mold is designed, the gate position and shape must be reasonable, and the mold temperature can be adjusted in the process. , After the product is taken out, put it in hot water and let it cool down.
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