Bio-based degradable film blowing master batch and production process thereof

Abstract

The invention discloses a bio-based degradable film blowing master batch and a production process thereof. The bio-based degradable film blowing master batch comprises the following components: biological refined starch, polyethylene resin, a compatilizer, a coupling agent, an antioxidant and a lubricant. The process comprises the following steps: a, obtaining biological refined starch; b, removing impurities from the biological refined starch obtained by refining; c, heating and dehydrating the biological refined starch; d, mixing the polyethylene resin, the biological refined starch, the lubricant, the compatilizer, the coupling agent and the antioxidant; e, feeding the materials into an automatic feeding device; f, sealing the automatic feeding device and the double-screw extruder; g, extruding to form master batches; and h, the material conveying pipe, the first hose and the second hose are cleaned. The obtained master batch can be degraded in the natural environment, so that the environmental pollution is reduced. Meanwhile, the material conveying stability is good, the prepared materials can be uniformly and continuously fed into the double-screw extruder through the automatic feeding device, and the production efficiency of the master batch is improved.

Description

technical field [0001] The invention belongs to the technical field of plastic products, and in particular relates to a bio-based degradable blown film masterbatch and a production process thereof. Background technique [0002] Plastic, as a new material, has developed vigorously since the middle of the 20th century, and has shown a continuous growth trend year by year. Now, plastic products have been widely used in various industries and fields of human activities, and it is becoming more and more difficult to leave plastic products in our daily life. While the plastics industry is developing, plastic materials also encounter two problems: (1) limited resources. Polymer compounds such as plastics are mainly derived from petroleum, and petroleum is a non-renewable resource, which has been gradually depleted on the earth. (2) Pollution to the ecological environment. At present, the world's plastic production has reached 200 million tons, and my country's plastic production...

AI Technical Summary

Problems solved by technology

(2) Pollution to the ecological environment

[0004] In the prior art, the prepared materials are put into the automatic feeding device, and then the prepared materials are fed into the twin-screw extruder through the automatic feeding device. However, there is a certain distance between the automatic feeding device and the twin-screw extruder. , if a hose is used to connect the automatic feeding device with the twin-screw extruder, the material transportation stability is poor; if a rigid pipe is used to connect the automatic feeding device with the twin-screw extruder, when the pipe is connected to the automatic feeding device, There is a certain distance between the connection between the pipeline and the twin-screw extruder, and the sealing is poor

Images