Starch-PVC resin blending full-degradation bone pasting bag and preparation method thereof

Abstract

The invention discloses a starch-PVC resin blending full-degradation bone pasting bag and a preparation method thereof. The starch-PVC resin blending full-degradation bone pasting bag is prepared from, by weight, 50-60 parts of PVC resin, 8-15 parts of calcium carbonate, 1-4 parts of nanometer titania, 10-20 parts of benzoin diethyl ether, 7-9 parts of nano montmorillonite, 1.2-1.4 parts of tetrabutyl titanate, 12-14 parts of ramie bones, 60-65 parts of corn starch, 2-3 parts of gelatin, 1-2 parts of magnesium stearate, 13-15 parts of acetyl tributyl citrate, 1-1.5 parts of 2,6-ditert-butyl-4-methylphenol, 4-6 parts of 3-hydroxybenzoic acid, 1-2 parts of laurinol sulfate and 4-6 parts of plant saponin. The product is produced according to a safe formula and can be used for manufacturing food packaging bags and the like, the product is high in strength, resistant to water and oil and durable when used, large-scale industrial production can be achieved, grasping is easy, popularization is convenient, the waste product can be automatically decomposed under the action of rich oxygen and microorganisms, finally carbon dioxide and water are generated, and ecological environmental protection is achieved.

Description

technical field [0001] The invention relates to the technical field of plastic films, in particular to a starch-PVC resin blended fully degradable bone sticking bag and a preparation method thereof. Background technique [0002] In recent years, due to the increasingly serious "white pollution" caused by waste plastics that are difficult to degrade, it has attracted widespread attention from all over the world. Countries around the world have successively issued relevant laws and regulations restricting or prohibiting the use of non-degradable plastic packaging. On the other hand, because petroleum, the raw material for making traditional plastics, is a non-renewable resource, it will be exhausted with the massive use of human beings. Therefore, it is imminent to develop environmentally friendly plastics that use renewable resources as raw materials and are degradable. [0003] The use of biodegradable starch materials to prepare degradable packaging films has become a resea...

AI Technical Summary

Problems solved by technology

However, while starch improves the degradability of plastics, on the one hand, it will cause a decrease in its physical and mechanical properties, making it difficult to process. On the other hand, it is also too hydrophilic, which is not compatible with most general-purpose resins. Poor, resulting in a significant decline in the mechanical properties of the film, poor water resistance, thus hindering the wide application of starch plastics in the process of industrialization

PVC resin is a widely used high molecular polymer, its performance is between plastic and rubber, it contains a large number of polar hydroxyl groups, its toxicity is very low, its molecular chain structure is symmetrical and regular, and it has unique strong adhesiveness, film Flexibility, smoothness, oil resistance, solvent resistance, protective colloid, gas barrier and water resistance after special treatment, and also has certain biodegradability, 6 under the condition of bacteria in wet environment It can be completely decomposed into water and carbon dioxide within a month. It is a completely biodegradable material, but the degradation process has high requirements on the degradation environment, so the degradation rate is still relatively slow.