Production method of slow-rebound sponge
A production method and sponge technology, applied in the field of elastic materials, can solve the problems of difficulty in reducing production costs, the impact of normal production of enterprises, and no solutions, and achieve the effects of reducing production costs, improving product quality, and improving economic benefits.
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[0014] The inventor has carried out in-depth research on the "stiffness" phenomenon of the slow-rebound sponge block, and found the reason for the "stiffness" phenomenon: the tissue density of the slow-rebound sponge is higher (more than ten times higher than that of ordinary sponges), and its fine structure is also All are sponge materials full of open pores (incomplete foaming pores interconnected one by one, called open pores); and the sponge block tissue is finally finalized after the temperature drops. When foaming, the temperature of the slow-rebound sponge block rises to 80-90°C during the foaming and expansion process, and the heat gradually dissipates after the foaming and setting are completed; however, due to the large volume of the slow-rebound sponge block after foaming, the cooling process The outside air has no time to enter (or it is difficult to enter immediately) all the fine tissue open holes in the slow rebound sponge block; under the effect of thermal expan...
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