Self-enhancement type polyolefin foaming material as well as preparation method and application thereof

Abstract

The invention discloses a self-enhancement type polyolefin foaming material as well as a preparation method and application thereof. Linear low density polyethylene LLDPE is used as a self-enhancementmaterial to partially or wholly replace a traditional polyolefin material to prepare the high-strength foaming material; a specific fish-bone-shaped molecule microstructure (a regular and very shortand small branch chain structure) is utilized to increase the anti-tearing strength, so that national standards of tension and torque force are realized; a tension and torque force test of a preparedfinished product exceeds national toy standards (70 N); the tension and torque force, the tensile strength and the resilience are improved, the rigidity is almost the same as that of a common foam floor mat and the utilization performance is not changed; preparation materials do not contain harmful substances including formaldehyde and, a plasticizer and the like so that the problem that dioxin isgenerated by chloride is solved and the safety and environment-friendly performance is improved; the preparation method can be directly used on an original production line and a technological flow isnot increased, so that the production method is suitable for industrial production; the production and improvement cost is reduced.

Description

technical field [0001] The invention relates to the field of foaming materials, in particular to a self-reinforced polyolefin foaming material and its preparation method and application. Background technique [0002] Foaming material refers to the foaming material that gasifies and generates bubbles inside the material to make it a porous material. It has the advantages of light weight, high specific strength, excellent insulation performance, significant cushioning capacity and strong adsorption capacity, and has been widely used. In the automotive industry, construction industry, packaging industry, agriculture, water treatment and air filtration and other fields; such as the manufacture of foam plastics, foam rubber, foam resin, etc. [0003] "Reinforcement" is a common technology for polymer-based composite materials, with polymer as the matrix and fibrous reinforcement as the reinforcing agent. "Reinforcement" greatly improves the strength and other mechanical properti...

AI Technical Summary

Problems solved by technology

[0006] However, since foam floor mats are mainly used for infants and young children, when the mechanical properties are not up to standard, infants may produce "small parts" when pulling and biting the floor mats, which may be swallowed by mistake and cause injury

At present, the products in the domestic foam floor mat industry basically do not meet the national standard for tension and torque of 70N (Newton).

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