Low-odor high-dispersion foaming master batch, and preparation method and application thereof

Abstract

The invention discloses a low-odor high-dispersion foaming master batch and application of the same to a modified polymer material, belonging to the technical field of materials. The foaming materialcomprises the following components in parts by weight: 20-70 parts of a foaming agent, 1-20 parts of polyether polyol, 30-80 parts of carrier resin, 1-10 parts of an odor improver, 0.5-5 parts of a dispersing agent, 1-10 parts of an interface improver and 0.5-2.0 parts of an auxiliary agent. The invention also discloses a preparation method of the low-odor high-dispersion foaming master batch. Anodor removing agent in the low-odor high-dispersion foaming master batch interacts with volatile components generating odor in a modified plastic material during processing of the modified plastic material, and a mixture is extracted out of a modified polymer melt by utilizing the vacuum negative pressure effect of the vacuum port of an extruder, so the content of harmful volatile components suchas odor molecules of the modified plastic material is effectively reduced, and the increasingly high requirements for no toxicity, no odor and no harm of modified plastic products are met.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a low-odor, high-dispersion foam masterbatch and its application in modified polymer materials. Background technique [0002] Compared with traditional materials, the unique core foaming and surface crust sandwich structure of micro-foaming materials endows it with the advantages of reducing product weight and greatly reducing processing energy consumption while maintaining excellent mechanical strength and rigidity. It is used in automotive parts applications more and more. In recent years, as the automotive industry has increasingly stringent requirements for material emission, the requirements for low odor and low VOC have become higher and higher. However, foaming agents are substances that can be decomposed at low temperatures, and degradation and emission problems, such as odor and VOC, often occur during the production process. It will even affect the smell of modified p...

AI Technical Summary

Problems solved by technology

However, foaming agents are substances that can be decomposed at low temperatures, and degradation and emission problems often occur during the production process, such as odor and VOC

It will even affect the smell of modified plastic products; on the other hand, the phenomenon of uneven dispersion of foaming masterbatches is common in the market, especially for high-content foaming agent foaming masterbatch products, the problem of uneven dispersion is more serious

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