PVC composite material as well as preparation method and application thereof

Abstract

The invention discloses a PVC composite material which comprises the following components in parts by weight: a PVC resin composition, a plasticizer composition and an elastomer. Four different types of PVC resins are compounded, a compound plasticizer is specially selected, and the PVC resins are kneaded with elastomers such as polyurethane, nitrile rubber and the like, so that the obtained PVC composite material has better performance in the aspects of oil resistance, high-temperature compression set, filter glue cracking prevention and the like, and passes a terminal finished automobile test. Part of a rubber part of an air outlet pipe of an existing motorcycle air filter is replaced.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PVC composite material and its preparation method and application. Background technique [0002] The motorcycle air filter is a barrier component that prevents dust from entering the carburetor and cylinder, and is also the cycle breathing system of the motorcycle engine. Once the air filter is damaged, the dust during driving will enter the cylinder through the carburetor, causing Abnormal wear of cylinders and valves. When the air filter is severely clogged, it will cause abnormal starting of the engine, insufficient power and increased fuel consumption. Therefore, in actual use, the air filter has a great impact on the service life of the engine. [0003] In the prior art, the material used for the air outlet pipe of the air filter is mainly composed of rubber, and a small part is composed of PVC. Due to the complicated production process of rubber, it is inferi...

AI Technical Summary

Problems solved by technology

[0004] However, when general-purpose PVC materials replace rubber products, there are two issues that must be considered: one is performance, especially oil resistance and high temperature compression set. There are still some differences between PVC materials and rubber

The other is the firm sealing of the glue bonding of the parts. Since the plasticizer used in ordinary PVC has a certain solubility for the glue used in the filter, it will cause insufficient sealing of the glue, which will cause the function of the filter assembly. failure of