Water-absorbing master batch for moulding regenerated plastic and preparation method for same

Abstract

The invention relates to a water-absorbing master batch for moulding regenerated plastic and a preparation method for the same. The water-absorbing master batch is composed of 15-35 parts of carrier resin, 65-85 parts of kieselguhr, 2-8 parts of a lubricating agent, 1-3 parts of a coupling agent, and 0-3 parts of a dispersing agent. The water-absorbing master batch disclosed by the invention is added and used during moulding processing for regenerated plastic, and capable of removing water and unknown low-molecular-weight volatile matters contained in the plastic, so that the plastic products have no water spray and air bubbles, and a drying process can be simplified, and machining time and machining expense can be saved while the quality of the products is improved; additionally, the water-absorbing master batch is capable of reducing the pungent smell generated by the plastic due to degradation and the like, and is widely used in various plastic moulding processes of plastic pipes, injection moulding, hollow blow-moulding and the like.

Description

technical field [0001] The invention belongs to the technical field of plastics, and in particular relates to a water-absorbing masterbatch added and used in the molding process of recycled plastics and a preparation method thereof. [0002] Background technique [0003] The world's resources are always a hot topic for human beings. The slogan of saving resources has gradually penetrated into the hearts of the people. Therefore, the awakening of recycled materials is also inevitable. In this way, people can truly achieve environmental protection and energy saving through the recycling of resources. Due to the non-natural degradability of plastics, recycled plastics are the focus of environmental protection and energy saving, and the price is cheap. According to different needs, only a certain aspect of attributes needs to be processed to produce corresponding products, which will not waste resources. drain. [0004] Recycled plastics refer to the plastic raw materials obta...

AI Technical Summary

Problems solved by technology

Using this method requires plastic product manufacturers to add high-temperature drying equipment, which will cause problems such as prolonging product processing time, increasing plastic product processing procedures, high power consumption, increasing production costs and labor, and a lot of water is contained inside plastic particles. Covering, even at high temperature, it cannot be effectively eliminated

In addition, recycled plastics will produce irritating odor due to degradation and other factors, which will affect product quality and scope of use.