High-insulation fiber-adding antiflaming blow-molding nylon composite material and preparation method thereof

Abstract

The invention discloses a high-insulation fiber-adding antiflaming blow-molding nylon composite material and a preparation method thereof, wherein the composite material is prepared from the following components in parts by weight: 50-70 parts of PA66, 10-20 parts of EOVA, 5-10 parts of MXD6, 1-5 parts of compatilizer, 15-20 parts of glass fiber, 20-25 parts of flame retardant, 5-10 parts of plasticizer, 0.1-0.3 part of heat stabilizer, 0.1-1 part of antioxidant and 1-5 parts of nanometer montmorillonite. The high-insulation fiber-adding antiflaming blow-molding nylon composite material is prepared by firstly mixing all raw materials in a high-speed machine, and secondly extruding and pelleting the mixed raw materials by a double-screw extrusion pelletizer within the temperature range of 190-250 DEG C. The invention has the advantages of high insulation, high rigidity, high heat resistance, halogen free, fire resistance, single-layer blow-molding, concise and convenient technology and the like; and in addition, the invention greatly reduces the cost and improves the competitiveness in the market on the premise of guaranteeing quality.

Description

technical field The invention belongs to polymer composite materials, and in particular relates to a high-barrier fiber-added flame-retardant blow-molded nylon composite material. Background technique Nylon 11 and 12 are produced by castor oil, which is an environmentally friendly and renewable plastic with good wear resistance, self-lubrication, low temperature resistance, injection molding, extrusion blow molding, and good barrier properties. But the price is five times that of ordinary nylon, 100,000 RMB / ton. It is mainly used in automobile fuel pipes and brake pipes, and its high price limits the application range of PA11 and PA12. Ordinary nylon is its main application variety. PA6 and PA66 account for more than 80% of the nylon market, about 20,000 RMB / ton. Ordinary nylon has obvious price advantages, but also has disadvantages, such as high water absorption, poor low temperature performance, poor creep resistance, large molding shrinkage, low melt viscosity of homop...

AI Technical Summary

Problems solved by technology

At present, high-performance ordinary nylon blow molding materials are only produced by a few multinational companies, such as BASF in Germany, DuPont in the United States, and Rhodia in France. There are no domestic manufacturers

In 2009, the European Union and the United States successively issued regulations, stipulating that the fuel tank of all automobiles, motorcycles, snowmobiles, off-road motorcycles, ATVs, jet skis, boat chainsaws, and lawn / garden equipment should have a fuel penetration rate of no more than 3g / 24 hours. Ordinary HDPE cannot meet EU and US standards at all

With the strict implementation of the ban, HDPE cannot meet the EU and US standards at all

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