Special general polymer material for machine cleaning and preparation method thereof

Abstract

The invention provides a special general polymer material for machine cleaning and a preparation method thereof. The special general polymer material comprises, by weight, 100 parts of modified polymer alloys, 0.5-1 part of thermoplastic plastic initiator, 0.5-1.5 parts of surface active agents, 0.5-1.5 parts of cleaning agents and 0.5-1.5 parts of silicon oil. The modified polymer alloys comprise, by weight, 40-60% of high-density polyethylene, 20-40% of polymethyl methacrylate and 10-20% of calcium carbonate filling. The special general polymer material has the advantages of being high in machine cleaning efficiency, environmentally friendly, safe, high in generality and easy to use, store and transport.

Description

Technical field [0001] The invention belongs to the field of modified plastic production, and particularly relates to a general-purpose polymer special material for washing machines and a preparation method thereof. Background technique [0002] With the development of the plastics industry, various plastic molding machines have emerged, such as injection molding machines, extruders, blown film machines, etc. Due to the diversification of plastic varieties, functional requirements and the various colors and appearances given to plastics by people, it is impossible to It is avoided that the same equipment is used to produce different materials. In the process of switching between various materials to be processed, in order to ensure that the materials do not affect each other, it is usually necessary to clean the equipment. Common methods for cleaning equipment are: [0003] 1. Pull out the screw and clean the screw barrel and screw with steel mesh; this purely mechanical physical c...

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Problems solved by technology

[0003] 1. Pull out the screw, and clean the screw barrel and screw separately with steel wire mesh; although this purely mechanical physical cleaning method will not pollute the environment, excessive mechanical grinding will consume time and damage the equipment;

[0004] 2. Use general-purpose plastic to punch directly; compared with the first method, although it will not cause serious damage to the equipment, due to the special viscoelasticity of the polymer, it is difficult to clean the residual polymer or carbide in the gap between the screw and the screw barrel Therefore, this method is only suitable for cleaning machines with relatively low requirements or with little difference in materials to be switched;

[0006] The earliest liquid washing machine materials, through the use of a large proportion of liquid emulsifiers, active agents and cleaning agents, can quickly penetrate into the carbide or residual polymer in the equipment gap, and then use the next one to wait Appropriate flushing of processed materials can make the equipment meet the cleaning requirements for reproduction; however, liquid active agents have higher requirements for storage conditions, and low-molecular substances will volatilize during the cleaning process, which not only pollutes the environment but also Have a certain influence on the steel structure of the equipment

[0007] Therefore, solid special materials for washing machines have been gradually developed. Usually, a resin is used as a carrier, and various additives such as cleaning agents, surfactants, foaming agents, etc. are compounded in the resin to form washing materials. However, due to the limitation of compatibility between different resins, this kind of solid special material for washing machines is not very versatile, and in order to achieve high cleaning performance, it is usually necessary to add a relatively high proportion of surfactants and cleaning agents, so that in There are also certain limitations in terms of environmental protection and safety.

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