Nano-calcium plastic biodegradable composite resin and its preparation and use method

Abstract

The invention relates to a nano-calcium plastic biodegradation composite resin. The composite resin is prepared from 0.5 to 20% of KV-environment-friendly plastic biodegradation cellulose and 80 to 99.5% of a nano-calcium modified plastic composite material, and under the condition of 100 to 130 DEG C, granulation via plastic extrusion is performed by mixing and stirring at 150 to 200rpm; then 1 to 65% of particles manufactured and 35 to 99% of polyethylene, polyvinyl chloride or polypropylene are mixed, and different degradable plastic products can be prepared. According to the composite resin, biological waste and natural calcium carbonate are taken as main raw materials, the distribution is wide, and the resources are rich; the preparing operation of the composite resin is simple and convenient, an original process does not need to be changed, and a plasticizer is not used; the degradability is controllable, a product only needs simple packaging, and can be stored for 3 years in a dry and lucifugal condition, the storage cost is low, and the production cost is equivalent to that of a common plastic product; compared with the prior art, the product performance is improved obviously and the composite resin has no toxicity, so that the composite resin is suitable for preparation of degradable plastic products which take polyethylene, polyvinyl chloride and polypropylene as raw materials, the quality and flexibility of the products are improved, and the degradable plastics are favorably used widely.

Description

technical field The invention belongs to the technical field of composite materials, and in particular relates to a nano-calcium plastic biodegradable composite resin and a preparation and use method thereof. Background technique According to the market research firm Markets & Markets report: By 2019, the market value of the biodegradable plastics industry will grow at an average annual growth rate of 13.01% to 3.477 billion US dollars. Mainly used in four aspects of packaging, fiber, agriculture and injection molding. In 2011, the total output of biodegradable plastic products in my country was about 450,000 tons, a year-on-year increase of about 30%. Biodegradable plastics include various types. Starch-modified series products are used the most, but they are not suitable for degradable plastic film. In 2009, 323,000 tons were produced and used worldwide. It is estimated that by 2020, the global usage will reach one million tons. There are not many companies producing c...

AI Technical Summary

Problems solved by technology

The application of simple chitosan has a large amount of addition and a high high-temperature carbonization rate, and its physical performance indicators for degradable plastic products are low; chitosan derivatives are mainly side chain derivatives, and their physical performance indicators for degradable plastic products are low. The rate is high, and obvious carbonization can be seen in the product

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