Functional masterbatch for improving low temperature resistance of polypropylene

Abstract

Relating to the field of functional masterbatches, the invention specifically discloses a functional masterbatch for improving the low temperature resistance of polypropylene. The functional masterbatch is composed of carrier resin, high density polyethylene resin, a crosslinking agent, nanoscale silicon oxide, nanoscale alumina, nanoscale kaolin powder, nanoscale nickel oxide, nanoscale iron oxide, nanoscale titanium oxide, a coupling agent, and a dispersing agent. The carrier resin is polypropylene resin, the crosslinking agent is preferably one of zinc oxide, zinc acetate or aluminum isopropoxide, the coupling agent is preferably one of KR-41B or triisostearyl titanate, the dispersing agent is preferably one of lignocellulose, oxidized polyethylene wax, glycerol tristearate or calcium stearate. After adding of the functional masterbatch provided by the invention into polypropylene, high density polyethylene resin and polypropylene resin can be blended to improve the low temperature resistance of polypropylene, in the fusion dispersion process of nano alumina, nano silicon oxide, kaolin and the like, a ceramic structure can be formed to strengthen the low temperature resistance of polypropylene resin.

Description

technical field [0001] The invention relates to the field of functional masterbatches, in particular to a functional masterbatch for improving the low temperature resistance of polypropylene. Background technique [0002] Polypropylene (PP) is a thermoplastic resin prepared by propylene polymerization. It is non-toxic, odorless, tasteless, milky white and highly crystalline. It is divided into isotactic polypropylene, atactic polypropylene and syndiotactic polypropylene according to the position of the methyl group. There are three kinds of propylene, in which the methyl groups are arranged on the same side of the main chain of the molecule, which is called isotactic polypropylene. If the methyl groups are arranged randomly on both sides of the main chain of the molecule, it is called atactic polypropylene. The two sides of the main chain are called syndiotactic polypropylene. In general industrially produced polypropylene resins, the isotactic structure content is about 95...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the poor cold resistance of polypropylene limits the application of polypropylene in the low temperature field, the purpose of the present invention is to provide a functional masterbatch for improving the low temperature resistance of polypropylene, which can significantly improve the low temperature resistance of polypropylene resin, and Added to polypropylene resin to disperse evenly and keep resin performance uniform