【摘要】 对低温下低动静刚度天然橡胶（NR）胶料的配方进行研究。结果表明：N-苯基马来酰亚胺（N-PMI）具有较高的反应活性，可在混炼或/和硫化时通过加成反应键接到NR分子主链上，降低NR分子链的规整性，从而明显降低NR的低温结晶性；添加N-PMI的硫黄硫化体系NR胶料和过氧化物硫化体系NR胶料在-40℃时的弹性模量和硬度均较低，采用这两种硫化体系NR胶料的制品在低温下表现出低动静刚度，这两种硫化体系NR胶料的N-PMI最佳用量均为5份。更多还原

【Abstract】 The formula of natural rubber(NR) compound with low static and dynamic stiffness at low temperatures was studied. The results showed that N-phenyl maleimide imide(N-PMI) had high reactivity and could be bonded to the main chain of NR molecules through addition reaction during mixing or/and vulcanization which reduced the regularity of NR molecular chain,and thus significantly reduced the lowtemperature crystallinity of NR. The NR compounds with N-PMI cured with sulfur vulcanization system or peroxide vulcanization system had low elastic modulus and hardness at-40 ℃. The products using these two NR compounds exhibited low static and dynamic stiffnesses at low temperatures,and the optimal dosage of N-PMI for both NR compounds was 5 phr.更多还原