Fully biodegradable film blowing material and processing technology

Abstract

The invention discloses a fully biodegradable film blowing material and a processing technology. The film blowing material is characterized by comprising a first component and a second component, the first component is degradable plastic and does not have thermoset; the second component is thermosetting degradable plastic and has thermosetting property; the volume ratio of the second component to the first component is 1 / 20 to 1 / 100. The processing technology comprises the following steps: 1) respectively cleaning master batch particles of the first component and the second component; 2) respectively drying the master batch particles of the first component and the second component cleaned in the step 1); 3) respectively melting the first component and the second component; and 4) carrying out film blowing operation on the first component, and after a stable first component film is formed, adding molten liquid of the second component from a plurality of filling ports which are uniformly distributed in the circumferential direction of a port on the lower side of a film blowing port, so that the second component forms a continuous strip shape, a discontinuous line segment or a discontinuous dot shape in the first component. The film blowing material is easy to crush, and the process energy consumption is lower.

Description

technical field [0001] The invention relates to a fully biodegradable material and a processing technique, in particular to the fully biodegradable material itself and the equipment and production process for preparing blown film. Background technique [0002] After the existing biodegradable plastics are made into plastic films, the efficiency of recycling and degradation is relatively low. One of the reasons is that the film materials are usually relatively large in size and difficult to clean, dry and crush. When recycling and crushing film materials, it is troublesome and there are many manual operations. [0003] When fully biodegradable plastics are produced in the next step after granulation, the granules need to be cleaned and dried for later use. Biodegradable plastic particles usually cannot be dried at a high temperature, which can easily lead to problems such as denaturation, melting and agglomeration. [0004] Commonly used drying equipment basically achieves ...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of this application solves the problem that the degradable plastic film in the prior art is not easily broken because of its large size by providing a fully biodegradable blown film material, and realizes the effect that the film made of the degradable material is easy to break

[0007] At the same time, it provides the processing technology of fully biodegradable blown film materials, which solves the problems of particle melting, agglomeration, denaturation, adhesion equipment, long drying time and high energy consumption in the drying of degradable plastics in the prior art, and realizes particle drying. There is no melting, deformation, and adhesion equipment during the drying process. The single drying volume is large, the drying time is short, and the effect of energy consumption is low.

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