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介绍了沉淀法白炭黑在橡胶产品中的应用情况。沉淀法白炭黑作为活性补强填料,具有高比表面积,高活性,特殊的表面特性和颗粒形态结构及独特的物理化学特性,在白色和浅色寺料中补强性能和表面活性优异,广泛用于橡胶鞋底,轮胎,胶管,胶带,胶辊,橡胶密封等产品,白炭黑发展方向是高分散性。精细化,造粒化和表面改性。 相似文献
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本发明与硅酮橡胶填充剂用新型沉淀法白炭黑有关,具体来说,这种沉淀法白炭黑用作硅酮橡胶的补强填料时,既能保持胶料的高补强特性,又能使胶料具有有利于加工性的硬度。 相似文献
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探析沉淀法白炭黑理化指标控制对橡胶胶料性能的影响 总被引:2,自引:0,他引:2
本文介绍了沉淀法白炭黑组成与结构、补强作用机理以及粒经、结构性、表面性质、杂质等理化指标对橡胶胶料性能的影响。 相似文献
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炭黑-白炭黑双相填料是一种独特的橡胶补强填普,特别适用于轮胎。基于对这种新材料特性的了解,特别是基填为-填料和相互作用较低、聚合物-填料相互作用及胶料中不同配合剂间的相互作用较高,对其在胎面胸,尤其是轿车轮胎胎面胶听应用进行了研究。结果表明,与炭黑和白炭黑胶料相比,新填料对胶料滞后损失和耐磨性能的平稳改进很大,胶料tanδ值在低温下较高,在高温下较低同时耐磨性能有所提高。至于轮胎使用性能。用这种填 相似文献
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近些年来,白炭黑已被用作传统橡胶补强剂——炭黑的替代品,特别是在轮胎应用当中。尽管人们对白炭黑补强的基本机理仍未充分理解,白炭黑的表面特征描述和硅烷化学的发展已使白炭黑填充弹性体的设计得到改进。本文考察配合有不同结构白炭黑的橡胶的机械性能。超小角度X射线光散射技术,被证明可以测定白炭黑粉末的原生粒子和聚集体的结构。 相似文献
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Graft copolymers of maleic anhydride and natural rubber or so‐called maleated natural rubbers (MNRs) were prepared in a molten state with varying maleic anhydride contents from 4 to 10 phr. In this work, the filler–filler and filler–rubber interactions of the MNR and precipitated silica were investigated. The MNR compounds containing 40 phr of silica both with and without 9 wt % of silane coupling agent were prepared. By increasing the maleic anhydride contents, the Mooney viscosity and cure times were increased, but the torque differences and cure rate indices were decreased. Bound rubber was increased with increasing maleic anhydride content, indicating an increase of filler–rubber interaction. In case of the compounds without silane, the MNR with 6 phr of maleic anhydride showed the lowest filler–filler interaction as indicated by a decrease of storage modulus upon an increase of strain in the filled compound i.e., Payne effect. This MNR compound also yielded the optimum mechanical properties. It has been demonstrated that a use of MNR with appropriate maleic anhydride content can reduce filler–filler interaction dramatically and hence improve a silica dispersion, as confirmed by SEM micrographs, resulting in an enhancement of the mechanical and dynamical properties. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 相似文献
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沉淀法白炭黑对热塑性天然橡胶性能的影响 总被引:1,自引:0,他引:1
以沉淀法白炭黑为填料、高密度聚乙烯(HDPE)和天然橡胶为原料,采用动态硫化技术制备了热塑性天然橡胶(TPNR),考察了沉淀法白炭黑用量对TPNR物理机械性能和耐磨性能的影响,研究了沉淀法白炭黑填充TPNR的热稳定性、结晶性和动态力学性能,并用扫描电子显微镜观察了TPNR的相态结构.结果表明,当沉淀法白炭黑用量为40份左右时,TPNR的拉伸强度、100%定伸应力和撕裂强度出现最大值,当沉淀法白发黑用量为10份时,TPNR的体积磨耗达到最小值,沉淀法白炭黑的适宜用量为20份;沉淀法白炭黑的加入改善了TPNR的热稳定性和动态力学性能,提高了TPNR的结晶温度、熔融温度和玻璃化转变温度;TPNR的拉伸断面出现了塑性形变的HDPE形成的条状物,说明沉淀法白炭黑具有良好的增强作用. 相似文献
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研究了影响白炭黑/顺丁橡胶/丁苯橡胶复合材料力学性能的因素。结果表明,白炭黑(ZQ601)适宜的改性配方和条件为:聚乙二醇6000、油酸及硅烷偶联剂Si-69的用量均为2%(以白炭黑质量计,下同),硬脂酸质量分数1%;温度100℃,时间10 min。制备白炭黑/顺丁橡胶/丁苯橡胶复合材料适宜的硫化配方和条件为:氧化锌3.0份(质量,下同),硬脂酸2.0份,促进剂DM 0.5份,促进剂D0.5份,促进剂CZ 1.0份,防老剂4010 NA 1.0份,切片石蜡1.0份,硫黄0.5份,改性白炭黑90份;温度140℃,时间10 min。所制备复合材料的拉伸强度、扯断伸长率、撕裂强度及邵尔A硬度分别达到了6.54 MPa、474%、20.11 kN/m和56,符合农业用轮胎及垫带的国标要求。 相似文献
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比较了沉淀法白炭黑深加工设备--高速涡旋粉碎机、气流粉碎机及准静态微粉磨的特点,及混炼硅橡胶用增白剂的特点. 相似文献
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Results of Monsanto rheometic studies and measurements of physical properties reveal that precipitated silica interacts chemically with epoxidized natural rubber (ENR) during high temperature (180°C) molding and the extent of chemical interaction increases in the presence of silane coupling agent, namely N‐3(N‐vinyl benzyl amino) ethyl‐γ‐amino propyl trimethoxy silane monohydrogen chloride. Fourier transform infrared spectroscopic studies show that silica is bonded to ENR through formation of Si—O—C bond, whereas in the presence of silane coupling agent, silica is bonded to the coupling agent through Si—O—Si bond, and ENR is bonded to the coupling agent through C—N—C bond formation. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 389–398, 1999 相似文献
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白炭黑及其在橡胶工业中的应用研究进展 总被引:1,自引:0,他引:1
田国鹏 《精细与专用化学品》2014,(4):29-34
白炭黑是橡胶工业中的一种重要补强填充剂,具有广阔的应用前景.介绍了白炭黑的制备方法、补强机理以及白炭黑在橡胶领域中的应用研究进展,指出了其今后的发展方向. 相似文献
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Walter H. Waddell John H. O'Haver Larry R. Evans Jeffrey H. Harwell 《应用聚合物科学杂志》1995,55(12):1627-1641
To improve the performance of rubber compounds using precipitated silica as a reinforcing filler, the silica surface was directly modified by (1) adsorption of a surfactant, (2) adsolubilization of an organic monomer, (3) in situ polymerization of the monomer in the surfactant bilayer, and (4) partial surfactant removal. Silica was thus surface modified with polymerized styrene, isoprene, butadiene, and copolymers. Styrene–butadiene modification afforded the most promising candidate based on evaluation in a silica-filled model tire compound. Compound physical testing showed that cure times were decreased, and break strength, tear energy, elongation to break, and cut growth resistance were increased. Thus, surface modification of silica by the in situ polymerization of organic monomers affords unique materials useful in improving rubber cure properties and cured compound physical properties. © 1995 John Wiley & Sons, Inc. 相似文献