Aluminium trihydroxide (ATH) nano particles with rod like morphology were incorporated in Polychloroprene (CR) rubber by melt mixing method, to prepare nanocomposites with enhanced mechanical, thermal, sorption and dielectric properties. The effect of ATH loading on various properties of the nanocomposites was studied and the results were correlated with the microstructure of the composites using TEM, SEM and XRD analysis. Tensile strength and modulus were found to be improved by the addition of ATH, the enhancement in former being 27% at 10 phr of ATH loading. The incorporation of ATH improved the thermal stability with an increment of up to 31 °C in the maximum degradation temperature. Differential scanning calorimetry studies show marginal increase (3 °C) in glass transition temperature (T_g) at 10 phr of ATH. Dynamic mechanical studies indicate agglomeration of ATH particles at higher loadings. The experimentally obtained storage modulus values have been compared with theoretical prediction, using different composite reinforcement models. The transport properties and dielectric permittivity of the composites registers enhancement with the addition of ATH. The improvement in properties by the addition of ATH is attributed to the polar-polar interaction between the matrix and filler particles. The present study confirms that ATH can be an effective reinforcing filler for CR matrix.

通过熔融混合法将具有棒状形态的三氢氧化铝（ATH）纳米颗粒掺入聚氯丁二烯（CR）橡胶中，以制备具有增强的机械，热，吸附和介电性能的纳米复合材料。研究了ATH负载对纳米复合材料各种性能的影响，并通过TEM，SEM和XRD分析将结果与复合材料的微观结构相关联。发现通过添加ATH可以改善拉伸强度和模量，在10phr的ATH载荷下，前者的增强为27％。ATH的加入提高了热稳定性，在最高降解温度下的增量高达31°C。差示扫描量热法研究表明玻璃化转变温度（T _g）略有增加（3°C））在ATH的10 phr。动态力学研究表明，在较高的载荷下，ATH粒子会发生团聚。实验获得的储能模量值已使用不同的复合材料增强模型与理论预测值进行了比较。复合材料的传输性能和介电常数随ATH的增加而增强。通过添加ATH来改善性能的原因是基体和填料颗粒之间的极性相互作用。本研究证实了ATH可以作为CR基体的有效增强填料。