知识与财富的链接
通过调整硫黄用量,研究天然橡胶(NR)/杜仲胶(EUG)并用胶的交联密度与结晶度的关系及其对并用胶性能的影响。结果表明：NR/EUG并用胶的交联密度与结晶度呈负相关;随着硫黄用量的增大,NR/EUG并用胶的交联密度增大,t10略有缩短,t90变化不大,硬度、耐屈挠性能和抗湿滑性能先提高后降低,滚动阻力和生热下降,储能模量波动减小;当硫黄用量为2～2.5份时,NR/EUG并用胶的交联密度和结晶度较大,物理性能、耐磨性能和抗湿滑性能较好。
The relationship between the crosslinking density and crystallinity of natural rubber（NR）/ eucommia ulmoides rubber（EUG） blend and their influence on the properties of the blend were studied by adjusting the sulfur dosage. The results showed that the crosslinking density of NR/EUG blend was negatively correlated with the crystallinity. With the increase of sulfur dosage,the crosslinking density of NR/EUG blend was increased,thet10 was slightly shortened,the t90 changed little,the hardness,flexural resistance and wet skid resistance increased at first and then decreased,the rolling resistance and heat buildup decreased,and the fluctuation of the storage modulus decreased. When the sulfur dosage was 2～2. 5 phr, the crosslinking density and crystallinity of NR/EUG blend were larger,and the physical properties,wear resistance and wet skid resistance were better.
