Polyvinyl chloride foam tube for exhaust duct

Abstract

The invention discloses a polyvinyl chloride foam tube for an exhaust duct. The foam tube is prepared from the following raw materials: banana leaf, coconut shell charcoal fiber, 0.2% rare-earth coupling agent, azodicarbonamide, sodium bicarbonate, zinc oxide, polyvinyl chloride, fumed silica, nano-boron nitride, ferrocene, butyl stearate, calcined clay, butadiene-acrylonitrile rubber, cellulose acetate, N,N-dimethylformamide, lac and a proper amount of deionized water. The prepared polyvinyl chloride tube has heat resistance, strong toughness and excellent flame retardance, has excellent wear resistance and acid and alkali resistance when used for a duct of exhaust equipment, has long service life, and is worth of promotion.

Description

technical field [0001] The invention relates to the technical field of foamed polyvinyl chloride, in particular to a polyvinyl chloride foamed pipe for an exhaust air duct. 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", quatern...

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