1) heat aging property
热老化性能
1.
5% of the mass of precipitated silica,was added into the MVQ together with SiO2 at the same time,and the results show that the anti-heat aging property and t.
5%的甲基乙烯基硅油可改善硫化成型后的LDPE/MVQ-SiO2并用胶的耐热老化性能和拉伸性能,硬度和扯断伸长率基本不变,但耐撕裂强度有所下降;制备LDPE/MVQ-SiO2并用胶时,加入质量为LDPE质量的1%的抗氧剂,可防止并用胶胶料在第2段硫化过程中,由于LDPE热降解所引起的材料性能劣化;在抗氧剂和硫化剂共同作用下,并用胶胶料合适的第2段硫化条件是200℃,硫化2 h。
2.
The results showed that the heat aging property of vulcanizates,the H pull-out force of aged ply compound and the performance of finished product improved without adverse effect on the physical properties of vulcanizates by adding 1 phr FHD-60 to carcass ply and inner tube compounds of bias tire respectively.
结果表明,在斜交轮胎帘布胶和内胎胶中加入1份防老剂FHD-60,对硫化胶的物理性能无不良影响,可提高硫化胶的耐热老化性能、帘布胶老化后的H抽出力及成品性能。
2) hot air aging property
热空气老化性能
1.
The effects of conventional reinforcing agents(carbon black and silica),montmorillonite(original and OMMT)and salts of unsaturated carboxylic acids(zinc methacrylate and magnesium methacrylate)on the physical properties and hot air aging property of HNBR compounds were investigated,and the microstructure was characterized by SEM,TEM and TGA.
试验研究常规补强剂(炭黑、白炭黑)、蒙脱土(原土、有机蒙脱土)和不饱和羧酸盐(甲基丙烯酸锌、甲基丙烯酸镁)三类补强剂对氢化丁腈橡胶胶料物理性能和热空气老化性能的影响,并用扫描电镜、透射电镜和热重分析等方法对其微观结构进行表征。
3) thermal aging property
热空气老化性能
1.
3 phr sulfur were used,an ACM compound with higher curing rate was obtained,and its vulcanizate possessed better comprehensive properties,especially,excellent thermal aging property.
3份时,ACM胶料的硫化速度较快,硫化胶各项性能较好,特别是耐热空气老化性能优异。
4) air aging property
热空气老化性能
1.
The influences of MPBM on air aging property and thermal oil resistance as well as mechanical property of ACM were studied.
研究了N ,N -间苯撑双马来酰亚胺 (MPBM)对ACM橡胶力学性能、热空气老化性能以及耐热油性能的影响。
5) thermal aging property
耐热老化性能
1.
The effect of the sorts and addition level of short fibre on the physical properties and thermal aging property of short fibre/CR composite was investigated.
试验研究短纤维种类和用量对短纤维/CR复合材料物理性能和耐热老化性能的影响。
2.
The results showed that the processibility,scorch time and curing rate changed little as the addition level of EPDM increased up to 30 phr;and when compared to IIR vulcanizate,IIR/EPDM vulcanizate possessed lower cross-link density,higher tensile strength and elongation at break,a little higher tear strength,similar thermal aging property,smaller tanδ at -10~+25 ℃ and greater tanδ at 25~200 ℃.
结果表明,在EPDM用量不超过30份时,随着EPDM用量的增大,IIR/EPDM并用胶的加工性能、焦烧时间和硫化速度变化不大;与IIR硫化胶相比,IIR/EPDM并用胶的交联密度减小,拉伸强度和拉断伸长率增大,撕裂强度略有提高,长期耐热老化性能相当,-10～+25℃时的损耗因子小于IIR硫化胶,25～200℃时的损耗因子大于IIR硫化胶。
3.
The results showed that a NR compound with the highest curing rate was obtained by using 4070/RD,its vulcanizate possessed the excellent flex cracking resistance,thermal aging property,fatigue resistance and hot water extraction resistance,and the comparable light aging property to those by using 4020/RD or 3100/RD.
结果表明,防老剂4070/RD并用胶的硫化速度最快,硫化胶的抗屈挠裂口性能、耐热老化性能、耐疲劳性能和耐热水抽提性能最优,耐日光老化性能相当于防老剂4020/RD和3100/RD硫化胶。
6) heat aging property
耐热老化性能
1.
The influence of the EPDM/NR blending ratio and the multiplex curing system on the curing behavior,physical properties and heat aging property of blends was investigated.
采用硫黄硫化体系和过氧化物(硫化剂DCP)硫化体系对EPDM/NR并用胶实施复合交联,研究并用比和复合交联体系对胶料的硫化特性、物理性能和耐热老化性能的影响。
2.
The effect of TMTD on the curing behaviour,physical properties,heat aging property and permanent set at high temperature of CO/ECO was investigated.
研究促进剂TMTD用量对均聚型氯醚橡胶 (CO) /共聚型氯醚橡胶 (ECO )并用胶硫化特性、物理性能、耐热老化性能和高温压缩永久变形的影响。
补充资料：热老化
分子式：
分子量：
CAS号：
性质：聚合物受热而性能变劣的过程。大多数聚合物的热老化是由光、氧和受热共同作用所引起的降解和交联反应。降解会引起变软、发粘；交联则使材料变硬、发脆。例如顺丁橡胶的热老化会使其交联、变硬而失去弹性。
分子量：
CAS号：
性质：聚合物受热而性能变劣的过程。大多数聚合物的热老化是由光、氧和受热共同作用所引起的降解和交联反应。降解会引起变软、发粘；交联则使材料变硬、发脆。例如顺丁橡胶的热老化会使其交联、变硬而失去弹性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条