Processing method of low-cost degradable plastic bag

Abstract

The invention belongs to the technical field of processing of degradable plastic bags, and particularly relates to a processing method of a low-cost degradable plastic bag. The processing method comprises steps of raw material preparation, preparation of a sweet potato processing material, preparation of a fused material and preparation of a mother material and a plastic thin film. Compared with the prior art, the processing method has the following advantages that sweet potatoes serve as one of the main raw materials, and are processed with a urea solution, carboxyl-terminated polyamide and acationic initiator under a high temperature microwave condition, the molecular mass of the reactants can be effectively improved, the softness and the toughness of sweet potato fiber are enhanced, meanwhile, the chemical state of the surface of the sweet potato fiber can be effectively changed, and fusion with other raw materials is facilitated; the raw materials cooperate with one another effectively, the obtained plastic bag master batch has the photosensitivity and biodegradation characteristics, the prepared plastic bag has good stretching strength is good, the anti-tear property is good,the load-bearing force is large, the plastic bag can be repeatedly used, the degradation speed under a light condition is high, and the plastic bag can be applied and popularized.

Description

technical field [0001] The invention belongs to the technical field of degradable plastic bag processing, and in particular relates to a processing method of a low-cost degradable plastic bag. Background technique [0002] Plastic bags bring convenience to our lives, but the recycling value of plastic bags is low, causing white pollution during use, and there are also potential hazards. The plastic structure is stable and not easily degraded by natural microorganisms. The environment will not be separated for a long time, which means that if waste plastic waste cannot be recycled effectively, it will become pollutants in the environment and accumulate forever, which will cause great harm to the environment. As the concept of environmental protection is deeply rooted in the hearts of the people, With the continuous improvement of people's awareness of environmental protection, polylactic acid and PBT fully biodegradable materials have gradually appeared, but their prices are ...

AI Technical Summary

Problems solved by technology

[0002] Plastic bags bring convenience to our lives, but the recycling value of plastic bags is low, causing white pollution during use, and there are also potential hazards. The plastic structure is stable and not easily degraded by natural microorganisms. The environment will not be separated for a long time, which means that if waste plastic waste cannot be recycled effectively, it will become pollutants in the environment and accumulate forever, which will cause great harm to the environment. As the concept of environmental protection is deeply rooted in the hearts of the people, With the continuous improvement of people's awareness of environmental protection, polylactic acid and PBT fully biodegradable materials have gradually appeared, but their prices are 3-4 times that of ordinary plastic bags, and it is difficult to popularize them. Therefore, further research on degradable plastic bags is needed.