Wuhan Adiprene Duracast S930 PUR-ester/MDI hot sale,
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work. , Especially when PC/ABS products are sprayed with certain exterior paints of the car body, due to the strong corrosion of the solvent, stress marks, cracks, and even cracks will appear on the products. Demand for modified nylon PA6 and PA66 for charging piles for new energy vehicles. 1. Why should plastics be modified? The so-called plastic modification refers to the purpose of changing its original performance, one or more aspects by adding one or more others to the plastic resin, thereby achieving the purpose of expanding its scope of application. In the first three quarters of 2013, the import and export trade deficit of my country’s injection molding machines reached US$48.76 million, a sharp drop of 72.2% year-on-year; injection molding machines accounted for 47.7% of the former imports of modified plastics.
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 decreased, 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 into the human body.
V0 level
1. Suitable for making corrosion-resistant parts, wear-reducing and wear-resistant 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 bubbles. And note that demolding 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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Wuhan Adiprene Duracast S930 PUR-ester/MDI hot sale,
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So, what are the properties of PP modified plastics? PP materials are widely used due to their outstanding advantages such as wide sources, low density, good mechanical balance, chemical resistance, easy processing and low price. 5. Machinery and equipment manufacturing industry: The high-speed mixers and parallel twin-screw extruders commonly used in modified plastics have reached advanced levels in terms of use function and continuous operating life, but the price is far lower than the market standard. Although the strength, rigidity, and heat resistance will be higher than that of the parent nylon, the impact strength can be more than 10 times, and it has excellent abrasion resistance and dimensionality. The modified tough nylon can be resistant to radiation and resistance. Ultraviolet, and has excellent size and excellent mechanical strength.
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