Degradable and combustible polyethylene plastics

Abstract

A degradable and combustible polyethylene plastics is prepared from polyethylene resin (100 pts. wt.), photosensing agent (0.2-1 pts.wt.), ultra-fine inorganic material powder (40-60 pts. wt.) and surface treating agent of said inorganic material powder (1-2 pts. wt.). It can be used to make film or package bag, and features photodegradation nature, promoting degradation by burning it, short degradation period, full combustion, and less released harmful gas when it burns.

Description

Technical field: [0001] The invention relates to a plastic, in particular to a degradable and incinerable plastic. Background technique: [0002] The "white pollution" caused by single-use plastic waste has been paid more and more attention by countries all over the world. At present, there are three main methods to control "white pollution" in the world: recycling, incineration and development of degradable plastics. For disposable plastic waste that is easy to recycle and has material recovery value, recycling treatment methods are generally used, but for those that are difficult to recycle or have no recycling value, treatment methods such as incineration or degradation are generally used. [0003] As for the degradation method, since the 1980s, the United States, Canada, Japan and other countries have taken the lead in developing degradable plastics, and achieved certain application results. Degradable plastics have become a hot issue in the world. my country has also i...

AI Technical Summary

Problems solved by technology

However, only by using degradation methods (including photodegradation, photo-biodegradation) and other methods, the light time for complete degradation is required to be long (about 40-50 days).

In general, after plastic waste is discarded, the exposure time in nature is short (usually 1 to 5 days), so the actual light time is not enough to achieve complete degradation

Moreover, if the plastic waste is incinerated, it will produce harmful dust and toxic gases like ordinary polyethylene plastics, causing secondary pollution to the atmosphere.

[0004] In fact, many countries still use incineration to deal with garbage (including plastic waste). It is reported that the polyethylene plastic film developed by Japan can reduce air pollution when incinerated, but this product is filled. The effect is only reflected in the reduction of plastic materials, and due to the large molecular weight during incineration, there are still disadvantages of incomplete combustion and certain harmful gases, and if the material is buried without incineration, it cannot be degraded. Still has "white pollution", so there are also big deficiencies

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