Biodegradable plastic electronic clock case having self-lubricating function and preparation thereof

Abstract

The invention discloses an electric clock shell which has the function of self-lubricating and is manufactured by a biodegradable plastic. The invention is manufactured by the materials according to the following weight percentages: 30 to 50 percent of soybean dreg powder, 10 to 20 percent of inorganic powder fittings, 30 to 50 percent of carrier resin as well as 2 to 5 percent of lubricating dispersant. The preparation method of the electic clock shell is as follows: the materials are fed into a high-speed mixer according to proportions and stirred for 10 minutes at a high speed; then the materials after being uniformly mixed are dried; the mixture is then extruded by an extruding machine with a single screw rod or double screw rods and manufactured into the master batches of the biodegradable plastic; themaster batches of the biodegradable plastic are arranged in the screw rod extruding machine for being extruded and shaped into the product of the electric clock shell. The invention can reduce the production cost and improve the mechanical intensity as well as the biological degradability.

Description

technical field [0001] The invention relates to an electronic clock case made of self-lubricating biodegradable plastic and a preparation method of the electronic clock case. Background technique [0002] With the development of the petrochemical industry, a large number of plastic products are widely used and discarded in human life, and the ills brought about have attracted more and more attention. After being discarded, discarded plastic products will eventually disperse into the soil. Due to its stable chemical properties and long decomposition cycle, it will cause white pollution, make the land lose its vitality and use value, and cause increasingly serious environmental problems. [0003] In order to reduce white pollution, many degradable materials have been developed in recent years. Usually, starch-based degradable materials are mixed with synthetic polymer materials, which has become an economical and practical way. Chinese patent CN1388159A discloses "starch-base...

AI Technical Summary

Problems solved by technology

Chinese patent CN1388159A discloses "starch-based degradable environmental protection material and manufacturing method", which is based on starch, modified auxiliary materials, vegetable sugar, plasticizer, degradation control agent, polycaprolactone and polyhydroxybutyrate copolymer, chitin Chitosan is used as raw material to produce starch-based materials by twin-screw extrusion, and vegetable oil is used as plasticizer, but the starch in this material does not have good compatibility with degradable polymers, which limits its processing performance

For the application of degradable materials, due to the constraints of various factors such as use cost, process, performance, etc., it has not yet been widely used.