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稀土顺丁橡胶又称钕系顺丁橡胶,是以稀土金属钕为主体的催化体系聚合的一种顺丁橡胶。它具有链结构规整、线性好、平均分子量高,分子量分布可调的特点,适用于子午线轮胎、斜交轮胎的各种原料配方,可与天然橡胶、丁苯橡胶并用。与广泛使用的镍系顺丁橡胶相比,稀土顺丁橡胶可减少轮胎滞后损失和内生热、降低滚动阻力,提高轮胎耐磨性和抗湿滑性,改善轮胎胎冠胶老化崩花掉块、胎侧胶老化龟裂现象,提高轮胎耐久性能和高速性能。稀土顺丁橡胶作为轮胎生产的优选胶种, 已被越来越多地应用于生产中。
Rare earth butadiene rubber, also known as neodymium-butadiene rubber, is a butadiene rubber that is polymerized by a catalytic system mainly composed of rare earth metal neodymium. The utility model has the advantages of regular chain structure, good linearity, high average molecular weight and adjustable molecular weight distribution. The utility model is suitable for various raw material formulations of radial tires and bias tires, and can be used together with natural rubber and styrene butadiene rubber. Compared with the widely used nickel-based butadiene rubber, rare-earth-based butadiene rubber can reduce the tire hysteresis loss and endogenous heat, reduce rolling resistance, improve tire wear resistance and wet skid resistance, improve the tire tread rubber aging collapse collapse Block, sidewall plastic aging cracking phenomenon, improve tire durability and high speed performance. Rare earth butadiene rubber as the preferred rubber tire production has been increasingly used in the production.