共查询到20条相似文献,搜索用时 93 毫秒
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研究多功能交联剂WY988在输送带覆盖胶中的应用。结果表明:在天然橡胶(NR)胶料和NR/顺丁橡胶(BR)并用胶中添加多功能交联剂WY988,并减小促进剂和硫黄用量,可以达到等效的硫化促进效果;多功能交联剂WY988与炭黑N234配合使用的胶料耐磨性能与炭黑N115/N234并用的胶料相近;添加多功能交联剂WY988的NR胶料和NR/BR并用胶耐老化性能提高;NR胶料的多功能交联剂WY988硫化体系优化配合为多功能交联剂WY988 0.6,硫黄0.26,促进剂0.4,硫化剂DTDM 2;NR/BR并用胶的多功能交联剂WY988硫化体系优化配合为多功能交联剂WY988 0.6,硫黄0.26,促进剂0.8,硫化剂DTDM 1.6。 相似文献
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对全钢载重子午线轮胎胎肩垫胶的配方进行优化。结果表明:通过加入多功能交联剂WY988,并适当调整补强体系,胶料的硫化返原程度减轻,硫化胶的邵尔A型硬度、定伸应力和回弹值增大,拉伸强度、撕裂强度和损耗因子减小,压缩生热降低;成品轮胎的耐久性能提高。 相似文献
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《橡塑技术与装备》2017,(19)
研究了不同配比的多功能交联剂WY988/S硫化体系对V带压缩胶的老化前后物理机械性能及动态生热性能的影响。结果表明,当WY988的用量增加同时S的用量减少时,t_(10)、t_(90)、MH-ML变化不大。随着WY988用量增加,老化前硫化胶的拉伸强度、定伸应力、断裂伸长率、硬度变化不大;100℃×24 h老化后WY988/S配比为0.2:2.8时性能保持率最高;硫化胶tanδ先降低后升高,且温度越高tanδ越小;随着老化时间延长,WY988/S配比为0.2:2.8的配方tanδ增大速率最慢。综上所述,当WY988/S配比为0.2:2.8时V带压缩胶具有最优的综合性能。 相似文献
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中短途全钢载重子午线轮胎胎面胶的改进 总被引:1,自引:0,他引:1
对中短途全钢载重子午线轮胎胎面胶进行改进,在胎面胶配方中,选用炭黑N234,并增加5份白炭黑和3份增塑剂A。结果表明,与生产配方相比,试验配方胶料的邵尔A型硬度和撕裂强度均明显提高,耐磨性能明显改善;成品轮胎的耐久性能和速度性能优于正常生产轮胎,使用寿命延长。 相似文献
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Jineesh Ayippadath Gopi Sanjay Kumar Patel Arup Kumar Chandra Deba Kumar Tripathy 《Journal of Polymer Research》2011,18(6):1625-1634
Styrene butadiene rubber-organoclay nanocomposites were prepared with Cloisite 15A via melt intercalation. X-ray diffraction
and transmission electron microscopy indicated that the nanostructures are partially exfoliated and intercalated. The nanocomposites
exhibited great improvements in tensile strength and tensile modulus. The incorporation of organoclay gave rise to considerable
reduction of tan delta and increase in storage modulus in the rubbery region. It is shown that after 6 phr (parts per hundred
rubber) clay loading there is not much increase in the properties. The effect of carbon black (N330) on mechanical properties,
dynamic mechanical properties, heat build up, abrasion resistance in the nanocomposites having the optimized clay level (6
phr) was investigated. Optimum results were obtained with the addition of 25 phr carbon black. For comparison with the 6phr
nanoclay and 25phr N330 (high abrasion furnace carbon black) filled SBR composites, 40 phr N330 filled SBR composites was
used. The 6phr organoclay and 25phr N330 filled SBR nanocomposite showed better properties than 40phr carbon filled SBR compound.
These results indicate that 6phr organoclay can be replaced by 15 phr carbon black from the conventional SBR-carbon black
based tire tread compounds. The Dynamic mechanical analyzer (DMA) results revealed that the new tire tread compound gives
better rolling resistance and comparable wet grip resistance and lower heat build up than that of conventional tread compound. 相似文献
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试验研究混合炭黑G660在斜交轮胎胎圈包布胶配方中的应用。结果表明,混合炭黑G660的补强性能与半补强炭黑相当,较活性碳酸钙好;胎圈包布胶配方中使用20份混合炭黑G660等量替代炭黑N660,胎圈包布胶各项性能满足生产工艺要求和使用性能,配方试样成本降低。 相似文献
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研究炭黑N330在全钢载重子午线轮胎胎体胶中的应用.结果表明:在胎体胶中以炭黑N330等量替代炭黑N326,胶料的MH增大,炭黑分散性提高,硫化胶的定伸应力增大,压缩生热升高,耐屈挠性能下降;以炭黑N330减量替代炭黑N326,并适当调整硫黄用量,胶料的MH减小,炭黑分散性改善,硫化胶的撕裂强度减小,压缩生热降低,耐屈挠性能提高,成品轮胎的耐久性能达到企业标准要求. 相似文献