共查询到20条相似文献,搜索用时 359 毫秒
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介绍了汽车用橡胶空气弹簧胶料配方的研究。通过小配合和大配合试验确定的汽车用橡胶空气弹簧胶料配方为:CIIR50;NR 50;炭黑N4330 45;增粘剂TKO-80 2.0;芳烃油5.0;粘合剂RH2.0;沥青(高软化点)2.0;防老剂3.0;硫化体系9.30;其它1.8,合计170.10。配方胶料物理性能和成品性能达到GB/T13061-91标准要求。 相似文献
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介绍了大型耐海水手动蝶阀衬胶胶料配方设计及衬制。阀体软质衬胶胶料配方为:NR 100;硫黄2.5;促进剂CZ0.8;氧化锌7.0;硬脂酸1.0;防老剂4010NA/RA/BLE3.5;炭黑N330/炭黑N55050;黑油膏8.0,总计172.8。阀板硬质衬胶胶料配方为:NR100;硫黄30;促进剂D0.6;氧化镁6.0;炭黑N550 20;滑石粉50;黑油膏10.0;氯化亚锡3.0,总计219.6。衬胶衬制工艺为:铸铁骨架蒸汽除油、喷砂除锈、涂开姆洛克胶粘剂和粘合(过渡)胶浆,衬胶及硫化。 相似文献
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介绍耐磨纤维缠绕喷砂胶管的结构及内胶层配方设计。耐磨纤维缠绕喷砂胶管内胶层的厚度为6~7mm,各纤维缠绕层采用角度搭配设计;内胶层主体材料采用NR/BR并用胶(并用比为50/50),硫化体系为硫黄/促进剂CZ/促进剂M(并用比为1.8/1/0.5),补强体系为白炭黑/炭黑N220/炭黑N330(并用比为12/50/20)。采用该结构和配方生产的纤维缠绕喷砂胶管耐磨性能良好,综合性能基本达到进口同类产品水平。 相似文献
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介绍CIIR防毒面具罩体胶料的配方设计。胶料的优化配方为:CIIR 100,高耐磨炭黑 35,增塑剂DOP 5,增塑剂DOS 5,防老剂2246 1,硬脂酸 1,氧化锌 5,硫黄0.2,促进剂ZDC 2,促进剂TMTD 0.8。用该配方胶料试制的大眼窗罩体抗毒剂渗透性能优异,拉伸性能、抗撕裂性能和耐寒性能良好。 相似文献
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介绍了软密封闸阀中的衬胶闸板的配方设计及衬制,闸板衬胶胶料配方为:NBR100;硫磺1.8,促进剂1.3,氧化锌5.0,硬脂酸1.2,防老剂2.0,炭黑N330/炭黑N550 60,软化剂12.0,其它1.7,总计185,衬胶工艺为:闸板骨架酸洗除锈;涂开姆洛克胶粘剂,衬胶及硫化。 相似文献
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氯化聚乙烯橡胶在钢丝编织胶管外层胶中的应用 总被引:2,自引:1,他引:2
用氯化聚乙烯橡胶(CM)替代CR或氯磺化聚乙烯橡胶(CSM)与NBR并用研制了钢丝编织胶管的外层胶。确定配方为:CM352L 60,NBRN32 40,氧化锌 2,稳定剂 12,防老剂 2,炭黑(N330/N660)60,GA补强剂20,填充剂30,增塑剂(DOP/DOA)20,粘合剂(RS/RA)6,促进剂DM0.8,硫化剂CVl5202.5,硫黄0.5。该配方胶料加工工艺与CSM/NBR胶料相同。采用该配方外层胶的成品胶管性能完全合格,现已正式投入生产。 相似文献
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采用低相对分子质量的液体环氧树脂(EP)与固化剂混合作为增强体的前驱体,比较了其填充天然橡胶(NR)、顺丁橡胶(BR)及两者并用胶的物理机械性能,考察了EP用量对并用胶及炭黑增强并用胶物理机械性能的影响,并通过扫描电子显微镜表征了填充后的NR、BR及并用胶的微观相态结构。结果表明,EP的加入均可提高NR、BR、NR/BR并用胶的物理机械性能,其中并用胶的拉伸强度提高幅度最大;当EP用量约为24份时,NR/BR并用胶的综合性能最佳;EP可以提高炭黑增强NR/BR并用胶的物理机械性能,但提高幅度不大;EP在NR/BR并用胶中呈现规整的圆球形状,直径为1.0~2.5μm。 相似文献
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研究了反式-1,4-聚异戊二烯(TPI)硫化胶及其与BR,SBR,NR共混硫化胶的性能。结果表明,通过控制硫黄用量即交联密度,可使TPI硫化胶具有优异的力学和动态力学性能;TPI与BR,SBR,NR共混,工艺性能良好,当TPI/BR,TPI/SBR和TPI/NR共混比小于50/50时,共混硫化胶的力学和动态力学性能优于BR,SBR和NR硫化胶,特别是拉伸疲劳寿命大大延长,这正是高性能轮胎所需要的 相似文献
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轿车筒式减振器橡胶减振垫的研制 总被引:1,自引:0,他引:1
运用物理防护、化学抗氧的方法改善臭氧老化性能。通过天然橡胶、顺丁橡胶的并用提高减振垫的动态性能。改进模具的结构设计,可以延长橡胶减振垫的使用寿命。 相似文献
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用于全钢子午线轮胎胎侧胶的反式-1,4-聚异戊二烯/天然橡胶/顺丁橡胶并用胶的性能 总被引:2,自引:0,他引:2
研究了不同反式-1,4-聚异戊二烯(TPI)用量对用于全钢子午线轮胎胎侧胶的TPI/天然橡胶(NR)/顺丁橡胶(BR)并用胶力学性能、动态力学性能和热老化性能的影响,并对并用胶进行了配方优化。结果表明,当TPI/NR/BR的并用比(质量比)为15.0/42.5/42.5时,混炼胶外表光滑,硬度适中;TPI/NR/BR并用胶的硫化特性与NR/BR并用胶相比变化不大,且在保持后者力学性能的基础上,动态力学性能明显提高;经配方优化后,并用胶耐屈挠性优异,滚动阻力、压缩生热降低,是一种较为理想的全钢子午线轮胎胎侧胶材料。 相似文献
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The distribution of modified and unmodified nanoclays inside the rubber phases of immiscible rubber–rubber blends composed of nonpolar–polar natural rubber (NR)/epoxidized natural rubber (ENR) and nonpolar–nonpolar NR/polybutadiene rubber (BR) was investigated for the first time. The distribution of clays at various loadings in the blends was calculated from the viscoelastic properties of the blends. For example, in the 50 : 50 NR/ENR blend, 42% Cloisite 30B migrated to the NR phase, and 58% went to the ENR phase. However, in the same blend, only 7% Cloisite Na+ was found in the NR phase, and 93% was found in the ENR phase. Again, in the 50 : 50 NR/BR blends, the NR phase contained 85% Cloisite 30B, whereas 55% Cloisite Na+ migrated to the NR phase. All these observations were explained with the help of viscosity, X‐ray diffraction, and morphology analyses. The effect of the distribution of the clay on the mechanical properties was also discussed. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010 相似文献
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Hsien-Tang Chiu Wei-Che Li Peir-An Tsai 《Polymer-Plastics Technology and Engineering》2013,52(7):845-855
In this study, we research the Mooney viscosity, curing rates, and processibility of natural rubber (NR) and polybutadiene rubber (BR) blends at different blending ratios. The changing values are measured during vulcanization processing and were tested by Mooney viscometer, Monsanto viscometer, etc. The results of scanning electron microscope (SEM) and dynamic mechanical analysis (DMA) experiments are used to explore the surface morphologies and molecular mobility of NR/BR blends. The experimental results indicate that Mooney viscosity tends to decrease with increasing NR content of NR/BR blends, and this results in superior processibility of NR/BR blends with increasing NR content. NR/BR blends' curing rate improved with increasing NR content. The DMA experimental results show that the temperature is suitable to produce a character peak (Tαn) in molecular motions of NR/BR blends. There tends to a lower temperature range with decreasing NR content of NR/BR blends. In addition, Tαb would move to a lower temperature with decreasing BR content of NR/BR blends. 相似文献