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以Ｎ，Ｎ－二甲基苯胺、１％（按ＩＰＮ质量计，下同）过氧化二苯甲酰和二丁基二月桂酸锡（简称有机锡）为固化剂，活性二氧化硅为填充剂（用量为总质量的３０％），由４７％的甲基丙烯酸甲酯（ＭＭＡ）与蓖麻油、２，４－甲苯二异氰酸酯型聚氨酯组成的ＩＰＮ为基材，在２５～３０℃下经８～１２ｈ固化。固化材料的体积电阻率和表面电阻率可达１０￣１３数量级，介电常数为５．５～６．０，介电损耗角正切为０．０１８～０．０２０，拉伸强度为５．０４ＭＭＰａ，硬度（邵尔Ａ型）为９３度，吸水率为０．６‰，吸油率为９．５％。研究了有机锡、三乙烯二胺、油酸、乙酰丙酮铝、三水合氧化铝等固化剂第３组分，活性单体ＭＭＡ和苯乙烯，活性二氧化硅、轻质碳酸钙、活性硅微粉等填充剂对固化效果及固化材料物理性质的影响。
With N, N-dimethylaniline, 1% (by IPN mass, the same below) dibenzoyl peroxide and dibutyltin dilaurate (referred to as organic tin) as a curing agent, the active silica is filled (Amount of 30% of the total mass), an IPN composed of 47% of methyl methacrylate (MMA) and castor oil, 2,4-toluene diisocyanate polyurethane was used as a substrate, and the mixture was stirred at 25-30 ° C 8 ~ 12h curing. The volume resistivity and surface resistivity of the cured material can reach the order of 10-13, the dielectric constant is 5.5-6.0, the dielectric loss tangent is 0.018-0.020, the tensile strength is 5.04Mpa , Hardness (Shore A type) is 93 degrees, water absorption 0.6 ‰, oil absorption rate of 9.5%. The third component of curing agent such as organotin, triethylenediamine, oleic acid, acetylacetone aluminum and alumina trihydrate, active MMA and styrene, activated silica, light calcium carbonate, active silica powder Effect of other fillers on the curing effect and the physical properties of the cured material.