An environmentally friendly plastic material with slow decomposition rate and low water absorption

Abstract

The invention discloses an environment-friendly plastic material with a low decomposition rate and a low water absorptivity. The environment-friendly plastic material is prepared from the raw materials in parts by weight: 20-25 parts of PCL (polycaprolactone), 65-70 parts of modified PHB (poly-beta hydroxybutyric acid), 13-18 parts of a peanut protein powder, 1.5-1.8 parts of jute fiber, 3-4 parts of wood fiber, 1.1-1.3 parts of a silane coupling agent A-151, 2-3 parts of sodium lactate, 1.1-1.6 parts of sodium diacetate, 2-2.2 parts of dioctyl phthalate DOP, 5-7 parts of epoxy tall butyl oleate, 2-4 parts of oxidized starch, 20-23 parts of nano white carbon black, 6-8 parts of light calcium carbonate, 3-5 parts of sea-foam stone powder, 5-9 parts of kaolin and 1-1.4 part of antioxidant. The environment-friendly plastic material can be degraded by natural microbes and has the advantages of low decomposition rate, oxidation resistance, good shock resistance and low water absorptivity.

Description

technical field [0001] The invention relates to the technical field of plastic materials, in particular to an environmentally friendly plastic material with slow decomposition rate and low water absorption. Background technique [0002] Plastic materials are widely used, such as toys, plastic bottles, packaging bags, shopping bags, etc. We cannot live without plastics. However, as we all know, ordinary PP / PE plastics are difficult to decompose in the natural environment for hundreds of years, so discarded plastic products - also known as "white garbage" - are recognized as substances that can cause great damage to the environment. The accumulation of waste plastic products mixed in the soil will affect the absorption of nutrients and water by crops, resulting in reduced crop production and affecting agricultural development. Due to its extremely difficult to decompose, landfill treatment will not only occupy a large amount of land, but the occupied land will not be restored...

AI Technical Summary

Problems solved by technology

The accumulation of waste plastic products mixed in the soil will affect the absorption of nutrients and water by crops, resulting in reduced crop production and affecting agricultural development

Due to its extremely difficult to decompose, landfill treatment will not only occupy a large amount of land, but the occupied land will not be restored for a long time, which will affect the sustainable use of land; if it is disposed of by incineration, it will cause serious air pollution.

In recent years, the development and application of environmentally friendly plastic materials with slow decomposition rate and low water absorption, mainly composed of agricultural starch, has gradually emerged. However, this kind of material has a fast decomposition rate, weak oxidation resistance and impact resistance, and strong water absorption.

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