polyurethane resin composition
A technology of polyurethane resin and composition, which is applied in the direction of plastic/resin/wax insulator, other chemical processes, chemical instruments and methods, etc. It can solve problems such as cracks and loss of flexibility of polyurethane resin, and achieve hardness suppression and excellent volume resistance value , the effect of high reliability
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Embodiment 1~11 and comparative example 1~6
[0267] Each component and 0.01 weight% of SC-5570 (silicone antifoaming agent) as an antifoaming agent were mix|blended according to the composition shown in Table 1, and various polyurethane resin compositions were prepared according to the following procedure.
[0268] The (B) polyol compound, (C) inorganic filler, (D) plasticizer, and (E) crosslinking shown in Table 1 were carried out at 2000 rpm using an autorotation / revolution mixer (degassing Rentaro, manufactured by THINKY Co., Ltd. agent, (F) defoamer and (G) polymerization catalyst were mixed for 1 minute.
[0269] The (A) polyisocyanate compound shown in Table 1 was added to the said mixing component, and it mixed for 1 minute at 2000 rpm using the autorotation / revolution mixer (defoaming Rentaro, manufactured by THINKY company). The obtained mixture was degassed, and each polyurethane resin composition of Examples 1-11 and Comparative Examples 1-6 was obtained.
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