Chung Tian factory. EPDM rubber foam sponge is one of the best thermal insulation materials.
Three yuan ethylene propylene diene rubber (EPDM) is used as matrix, and azo two, AC and HOBSH are used as foaming agents, in order to systematically and quantitatively study the preparation process of EPDM foam material and the relationship between structure and properties of foamed material. At present, most of EPDM rubber foam material with low reinforcing carbon black filler, fine particles of carbon black can avoid the difficult problem of dispersion and high viscosity, but now the industry of light colored rubber products demand more and more, so this paper using silica as reinforcing filler rubber, studied the preparation process of EPDM foam rubber and the effects of molding conditions on the foaming process. Subsequently, the change of accelerator, filler, foaming agent and the amount of paraffin oil was analyzed. The curing properties, mechanical properties and SEM analysis were carried out, and the influence of various factors on the structure and properties of foamed material was discussed. The influence law of each formula factor on foaming is summarized, and the optimum formula dosage is expected to be found. Finally, we also through the compression behavior of stress-strain curves of EPDM rubber foam materials with different density, the energy absorption efficiency of E and I analysis of the ideal parameters of EPDM foam energy absorption characteristic of absorbing ability of W and.
Its characteristics: due to the internal foaming material containing a large amount of air or other gas, and should not be in circulation, especially the closed cell foam, with independent foam completely separated, material can obviously slow down on the heat conduction coefficient of heat conduction, very basic, more softness of the material itself, and good elasticity, can be used as the car, insulation materials, household appliances, ship electronic equipment, medical equipment, fitness equipment, such as the ideal air conditioning pipeline...
