Flame-retardant polyvinyl chloride foam tube

Abstract

The invention discloses a flame-retardant polyvinyl chloride foam tube, which is prepared from the following raw materials (by weight): 4.5-5 parts of bamboo charcoal fiber, 20-25 parts of banana leaf, 1-1.5 parts of 0.5% silane coupling agent kh550, 1.5-2 parts of azodicarbonamide, 5-6 parts of sodium bicarbonate, 0.2-0.3 part of zinc oxide, 100-110 parts of polyvinyl chloride, 1.2-1.8 parts of quartz, 1-2 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, 0.5-0.7 part of titanium-magnesium alloy powder, 2-3 parts of paraffin, 0.6-0.8 part of hydroxy propyl cellulose, 2-3 parts of bauxite, 8-10 parts of anhydrite, 2-3 parts of white bleached bead, 3-4 parts of styrene butadiene rubber and a proper amount of deionized water. The product has excellent flame resistance and ageing resistance, also has good heat stability, high notch impact strength, excellent creep resistance and strong market competitiveness, and has a good application prospect.

Description

technical field [0001] The invention relates to the technical field of foamed polyvinyl chloride, in particular to a flame-retardant polyvinyl chloride foamed pipe. Background technique [0002] The pipeline that conveys gas in the exhaust equipment is called the air duct, which connects various equipment or components in the system into a whole. Ducts are usually made of a smooth surface material such as polyvinyl chloride pipe. Polyvinyl chloride is one of the five general-purpose plastics and is widely used in many industries such as building materials and packaging. Polyvinyl chloride foam materials are more popular due to their light weight, heat insulation, sound insulation, high specific strength, and insulation. However, while the cost of foam materials is reduced, the mechanical properties are reduced, which greatly limits the use of PVC. Application of foam materials. In "Research on Polyvinyl Chloride-Montmorillonite Foamed Composite Materials", quaternary ammo...

AI Technical Summary

Problems solved by technology

Banana fiber can be divided into banana stem fiber and banana leaf fiber. Banana stem fiber has the advantages of general hemp fiber, such as high strength, small elongation, thick and hard fiber, easy moisture absorption and release, and easy dyeing. Banana leaf fiber has Excellent resistance to alkali, phenol, formic acid, chloroform, acetone, adding it to polyvinyl chloride materials can reduce environmental pollution and bring huge economic benefits, and can also improve the chemical corrosion resistance of polyvinyl chloride, but directly adding It will reduce the material performance of polyvinyl chloride itself and limit its application. Banana fiber must be modified to improve its interfacial compatibility with polyvinyl chloride