2) ageing stability
热氧老化稳定性
1.
The ageing stability of the blends of ENR/NBR was in vestigated by employing the differential Scanning Calorimeter(DSC), tensile tester and ageing oven.
采用差示扫描量热计,强力试验机,老化烘箱等设备研究环氧化天然胶(ENR)/丁腈胶(NBR)共混物的耐热氧老化稳定性。
4) thermal oxidative aging
热氧老化
1.
Effect of OMMT on thermal oxidative aging of PPC/OMMT nanocomposites was investigated.
研究了OMMT对PPC/OM-MT纳米复合材料热氧老化的影响。
2.
The influence of 4010NA antioxidant powder and traditional 4010NA antioxidant on the vulcanizing characteristics, thermal oxidative aging stability under free condition, and water extraction resistance of NR compounds were investigated.
研究了粉状防老剂4010NA与普通防老剂4010NA对NR胶料的硫化特性、自由状态下的热氧老化防护性能及耐水抽出性的影响。
3.
A comparative test of new antioxidants 350 and PS 988 to traditional antioxidants A,D,RD and 4010NA in NR compound was made in terms of thermal oxidative aging property,flex cracking,cut growth resistance and weathering resistance,and their effect on the curing rate of NR compound was investigated.
在NR中进行了新型防老剂 35 0和PS 988与传统防老剂A ,D ,RD和 40 10NA的热氧老化、抗屈挠龟裂与抗裂口增长及大气老化对比试验 ,并研究了对NR胶料硫化速度的影响。
5) thermo-oxidative aging
热氧老化
1.
Properties of stress relaxation and compression set of vulcanite during isothermal thermo-oxidative aging
硫化胶等温热氧老化时应力松弛和压缩永久变形性能的研究
2.
Three kinds of clay were treated by using reductant, strong acid and additionalmetal compounds, and the corresponding clay/rubber masterbatch was prepared for testing theproperties of thermo-oxidative aging.
通过还原剂、强酸及添加金属化合物的方法处理３种粘土，并制备相应的粘土胶进行热氧老化性能测试。
3.
The hardness, elongation at break, tensile strength, modulus, compression stress relaxation and permanent compression set of the rubber vukanizates in thermo-oxidative aging were described.
循此基本规律可预测橡胶及其制品的贮存或使用寿命,建立橡胶耐热氧老化性的合理评定方法,以及构成常温叠合曲线来研究弹性体长时间的粘弹性行为。
6) thermal-oxidative aging
热氧老化
1.
Effect of OMMT on the thermal-oxidative aging behavior of SBS modified was investigated by long-term thermal-oxidative experiment.
通过长期热氧老化实验研究了OMMT对SBS改性沥青热氧老化行为的影响。
2.
The structures of epoxidized styrene-isoprene-styrene block copolymer before and after thermal-oxidative aging were analyzed with FT-IR, and the effect of antioxidants on the property of thermal-oxidative aging was also investigated by means of the measurement of mechanical properties.
采用FT-IR研究了环氧化苯乙烯-异戊二烯-苯乙烯嵌段共聚物(ESIS)热氧老化前后的结构变化,并通过力学性能的测试考察了抗氧剂对ESIS抗热氧老化性能的影响。
3.
The results showed that the crosslinking occurred mainly in the inner SBR vulcanizate in the initial period of thermal-oxidative aging,but its surface oxidation was slow.
结果表明,丁苯橡胶在热氧老化开始时内部发生了以交联为主的反应,表面氧化缓慢;而在紫外老化开始时表面的变化较大,在老化过程中交联密度出现峰值;热氧和紫外老化120h后,橡胶的硬度增加,表面变得致密,使热氧和紫外线侵入至橡胶内部变得困难,邵尔A硬度等物理机械性能的变化趋势减缓;炭黑填充量大于20份(质量)时SBR的耐紫外老化性能得到改善,老化360h后物理机械性能保持率仍然较高,这是因为炭黑对紫外线有很好的屏蔽作用,而炭黑对SBR耐热氧老化性能的影响却相反。
补充资料：氧压热老化
分子式：
CAS号：
性质：橡胶类材料在一定的纯氧压力和高温作用下产生的变化。试验时，在能经受加热加压的容器内悬挂试样，于70℃±1℃温度下，将容器中的空气全部用氧置换，并加压到2.1MPa±0.1MPa。根据材料的老化速度选择老化时间，常规时间为24、48、168和336h。老化结束测定试样老化前后拉伸强度和伸长率的变化百分率。通过测定氧化反应的吸氧量，以吸氧诱导期的长短来判断材料的耐热氧老化性能。
CAS号：
性质：橡胶类材料在一定的纯氧压力和高温作用下产生的变化。试验时，在能经受加热加压的容器内悬挂试样，于70℃±1℃温度下，将容器中的空气全部用氧置换，并加压到2.1MPa±0.1MPa。根据材料的老化速度选择老化时间，常规时间为24、48、168和336h。老化结束测定试样老化前后拉伸强度和伸长率的变化百分率。通过测定氧化反应的吸氧量，以吸氧诱导期的长短来判断材料的耐热氧老化性能。
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