Photodegradation-rate-controllable polyformaldehyde and preparation method thereof

Abstract

The invention relates to photodegradation-rate-controllable polyformaldehyde and a preparation method thereof. Polyformaldehyde and nano titanium dioxide, and a compound photocatalyst of manganese, copper or aluminum are molten and mixed according to the mass ratio of (94-98):(2-6) to obtain the photodegradation-rate-controllable polyformaldehyde. In the invention, the addition of the photocatalyst can not generate any adverse effect on the processing performance and service performance of the product. The invention solves the problems of non-degradability and degradation rate of the polyformaldehyde under the condition of natural light; and since the polyformaldehyde is cheap, the market consumption is high, but the stability of the polyformaldehyde leads to non-degradability, and the invention also solves the problem of high environmental load after the polyformaldehyde is discarded.

Description

technical field [0001] The invention relates to polyoxymethylene and a preparation method thereof, in particular to a polyoxymethylene with controllable photodegradation speed and a preparation method thereof. Background technique [0002] POM has been widely used due to its excellent properties, but the environmental pressure brought by its stability continues to increase, and the problems caused by the post-treatment of POM are particularly difficult. Although methods such as landfilling, burning and recycling can be adopted, the research results have proved that these methods have disadvantages to varying degrees. Due to its excellent properties, polyoxymethylene has been widely used in various fields, but the non-degradability of polyoxymethylene and the environmental load brought by its disposal are one of the problems faced by human beings. Contents of the invention [0003] The object of the present invention is to solve the above existing problems in the prior art...

AI Technical Summary

Problems solved by technology

[0002] Due to its excellent properties, polyoxymethylene has been widely used, but the environmental pressure brought by its stability continues to increase, and the problems caused by the post-treatment of polyoxymethylene are particularly difficult

Although methods such as landfilling, burning and recycling can be adopted, the research results have proved that these methods have different degrees of disadvantages

Due to its excellent properties, polyoxymethylene has been widely used in various fields, but the non-degradability of polyoxymethylene and the environmental load brought by it after being discarded are one of the problems faced by human beings.