Large-caliber PVC (polyvinyl chloride) plastic pipe

Abstract

The invention discloses a large-caliber PVC (polyvinyl chloride) plastic pipe which is prepared from the following components in parts by weight: 10-30 parts of acrylic resin, 3-5 parts of fatty alcohol polyethenoxy ether, 5-7 parts of anti-ultraviolet agent, 6-8 parts of organotin stabilizer, 10-15 parts of powder rubber, 5-10 parts of tetrahydrofuran, 10-12 parts of stearic acid, 3-8 parts of lubricant and 3-5 parts of aluminum hydroxide. The nano material composite PVC pipe has the following advantages: the anti-ultraviolet agent can enhance the aging resistance; the composite flame retardant has better application performance, can enhance the decomposition temperature and combustion residue rate of the material, effectively inhibits the PVC main chain from cracking, and improves the heat stability of the material; and the metallic soap stabilizer enhances the properties of the product and can lower the production cost.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a large-diameter PVC plastic pipe fitting. Background technique [0002] At present, PVC pipes are widely used in water supply, construction, drainage, sewage, chemical and other technical fields because of their strong corrosion resistance, high strength, and good rigidity. However, due to the poor wear resistance of PVC pipes and the inability to use them in high temperature environments, the use of PVC pipes has been restricted to a large extent. In the prior art, there are PVC pipes with high temperature resistant components, but the high temperature resistance effect is relatively low. Difference. In recent years, flame-retardant PVC pipes have emerged and are widely used in various fields. The non-halogenation of flame retardants has become the mainstream of the flame retardant industry, and inorganic flame retardants such as aluminum hydroxide and magnesium hydroxi...

AI Technical Summary

Problems solved by technology

However, single inorganic flame retardants such as aluminum hydroxide and magnesium hydroxide have the disadvantages of large filling amount, which seriously affect the processing performance of polymer matrix materials and the physical and mechanical properties of products.