Method for manufacturing electronic crosslinking foaming material and compositions thereof

Abstract

The invention relates to an electronic crosslinking foaming material and compositions thereof. The electronic crosslinking foaming material comprises the following compositions in percentage by weight: 30 to 80 percent of ethylene propylene diene rubber, 0.5 to 12 percent of polyolefin plastics, 1 to 20 percent of ethylene vinyl acetate copolymer, 0.5 to 15 percent of foaming agent, and 0.1 to 11percent of additives. The method comprises the following steps: mixing the ethylene propylene diene rubber, the polyolefin plastics, ethylene vinyl acetate copolymer, the foaming agent and the additives to form an intermediate substance; extruding the intermediate substance; irradiating the extruded intermediate substance by electronic beams to enable the intermediate substance to generate a bridging reaction; and heating and foaming the irradiated intermediate substance. The method can protect a respiratory system of a human body against the harm of TDI aerosol generated by PU foaming plastics in a foaming process.

Description

technical field [0001] The present invention relates to a method for manufacturing a foam material and its composition, in particular to a method for manufacturing an electronically cross-linked foam material and its composition, which can be applied to computer screens, LCD panels, keyboards, hosts and other The field of foaming materials for electronic peripheral products can be applied to car seat cushions, aircraft seat cushions and other fields. Background technique [0002] At present, most of the foaming materials on the market are PU foaming plastics, and its raw material is polyurethane (PU for short). Its products are widely used in the necessities of people's livelihood, such as furniture, bed and chair cushions, linings, and building insulators. , Refrigerator insulation layer, etc. [0003] The basic raw material for the production of PU is toluene diisocyanate (TDI for short), but because it contains isocyanate (-NCO), its chemical properties are very active a...

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Problems solved by technology

[0003] The basic raw material for the production of PU is toluene diisocyanate (TDI for short), but because it contains isocyanate (-NCO), its chemical properties are very active and toxic; the most important thing is to manufacture PU. The foaming process in foamed plastics will produce the overflow of TDI aerosol (aerosol), which will cause serious harm to the human respiratory system, and the PU foam has poor tear strength after weathering treatment, and PU foam The foam has poor anti-slip and anti-adhesive properties

[0004] Moreover, most of the PU foamed plastics and other foamed materials currently on the market need to add cross-linking agents during the production process to allow the reaction starters to undergo bridging reactions, but some cross-linking agents are toxic and adding cross-linking agents requires a lot of money. higher manufacturing cost

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