High-fill high-resilience soft expanded polyethylene material and preparation method thereof

Abstract

The invention discloses a high-fill high-resilience soft expanded polyethylene material which comprises the following raw materials in parts by weight: 15-20 parts of polyethylene, 5-20 parts of an elastomer, 60-80 parts of modified calcium carbonate, 1-10 parts of a chemical foaming agent, 0.5-1.5 parts of a cross-linking agent and 1-5 parts of a physical foaming agent. The invention further discloses a preparation method of the high-fill high-resilience soft expanded polyethylene material. The preparation method has the benefits as follows: the high-fill high-resilience soft expanded polyethylene material with the calcium carbonate filling amount reaching up to 55%-75% can be prepared, the rigidity, the hardness and the compression strength of the material are improved on the basis of keeping the elasticity of the expanded material, and the material density is reduced; the production process is simple, the cost can be greatly reduced, and economy and practicability are achieved.

Description

technical field [0001] The invention relates to a polyethylene material, in particular to a highly filled and highly resilient soft foamed polyethylene material and a preparation method thereof. Background technique [0002] The foamed polyethylene material has a smooth surface, excellent impact absorption, excellent shock absorption and resilience, high tensile strength, excellent chemical stability, good environmental aging resistance and weather resistance, insulation, heat insulation, and The price is low, and it is the most widely used foam material at present. However, polyethylene foam materials still have deficiencies such as poor bending strength, compressive strength and heat resistance, low rigidity and hardness, etc., which limit its application. For this reason, people often add inorganic fillers in the process of material molding. On the one hand, it can improve the rigidity, hardness and other mechanical properties of foamed polyethylene materials, and on the...

AI Technical Summary

Problems solved by technology

However, at present, polyethylene foam materials still have deficiencies such as poor bending strength, compressive strength and heat resistance, low rigidity and hardness, which limit its application.

For this reason, people often add inorganic fillers in the process of material molding. On the one hand, it can improve the rigidity, hardness and other mechanical properties of foamed polyethylene materials, and on the other hand, it can reduce the cost of materials, but the actual performance of the product is still not enough. ideal