共查询到20条相似文献,搜索用时 171 毫秒
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简述预分散和预混合橡胶助剂产品开发的目的,介绍硫黄、氧化锌、促进剂、防老剂等预分散和预混合橡胶助剂产品以及芳纶浆粕、橡胶/纳米黏土复合材料、白炭黑/炭黑母胶等预分散橡胶助剂母胶产品的发展概况。 相似文献
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研究硫黄、促进剂和防焦剂的预分散母粒在全钢载重子午线轮胎胎面胶中的应用。结果表明:用硫黄、促进剂和防焦剂预分散母粒替代传统的粉末助剂,胶料的硬度、300%定伸应力、拉伸强度、拉断伸长率、撕裂强度和耐磨性能提高,成品轮胎的耐久性能改善。预分散母粒可以减小炼胶过程中助剂的质量损失,改善工作环境,提高胶料性能。 相似文献
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据美国《橡胶世界》报道,德国莱茵化学公司日前宣布,其投资约700万欧元在德国新建的橡胶助剂预混设备已全面运转。该公司称,新设备采用全球最先进的工艺技术,利用这种预混设备可成功地生产出商品名为Rhenogran的一系列橡胶助剂预分散体。这种由聚合物(如丁苯橡胶或三元乙丙橡胶)和橡胶化学品制成的预分散母粒便于运输和使用,可减少粉尘飞扬, 相似文献
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9月28日,嘉兴北化高分子助剂有限公司一期项目——年产3000吨预分散母胶粒生产线竣工投产典礼在嘉兴市嘉善魏塘工业园区内举行。该项目先期投资1000多万元,产品包括硫化剂母粒、促进剂母粒、金属氧化物母粒等特种功能产品,主要应用于轮胎、输送带等橡胶制品行业。嘉兴北化的生产技术是一种助剂母料技术,配合剂快速、精细地分散在轮胎 相似文献
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Suresh P Deshmukh Mahindra B Parmar Ashok C Rao Varinder Wadhwa 《Coloration Technology》2010,126(4):189-193
Over the past few decades, masterbatch production has been increasing year by year. Pigments are used primarily in masterbatches because of their ability to impart colour or opacity to a matrix. The effectiveness of pigments depends not only on their intrinsic ability to absorb or scatter light, but also, importantly, on the dispersiblity and distribution of the pigments that can be achieved in plastics. Nowadays, stringent environmental as well as excellent quality controls are making inevitable the use of non‐dusty monoconcentrated predispersed pigments for the production of masterbatches for the colouring of plastics. Commercially, for the most part, two types of monoconcentrated predispersed pigments are being used for the colouring of thermoplastic masterbatches. These are polymer‐ and wax‐based predispersed pigments. This study has been undertaken to provide a comparison of the colouring properties of polymer‐ and wax‐based monoconcentrated predispersed pigments. Four commercially used organic pigments have been selected. Both types of monoconcentrate predispersed pigments have been developed on a co‐rotating twin‐screw compounding extruder with a length/diameter ratio of 44. A detailed analysis on the comparison of the colouring properties is presented. Results indicate that good colour properties are achieved when operating conditions are optimised. 相似文献
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橡胶再生中废纤维的回收 总被引:2,自引:0,他引:2
采用两种技术对轮胎再生过程中产生的废纤维进行了回收,此废纤维中含有一定量的废胶粉。回收技术包括制备短纤维母胶和制备树脂颗粒。结果表明,短纤维母胶中加入粘合剂后,试样的拉伸强度大于20MPa,撕裂强度为50kN/m。此母胶可直接模压制作橡胶制品,若与其他橡胶并用,效果更好。回收制作的尼龙6树脂性能随着其中废胶含量的增加而下降。采用专利方法制备的尼龙6树脂的拉伸强度和冲击强度均接近日本宇部兴产公司生产的尼龙6(1013B)性能,可以生产注射尼龙制品。这两种回收技术具有显著的经济效益。 相似文献
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色母粒根据用途、功能、载体等的不同划分为不同的种类,各品种又划分为不同的等级.色母粒的生产有干法工艺和湿法工艺,湿法工艺包括油墨法、冲洗法、捏和法和金属皂法.介绍了色母粒在塑料、橡胶和合成纤维中的应用、发展状况. 相似文献
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介绍了高流动性荧光母粒在聚丙烯纤维(PP纤维)生产中的应用情况。结果表明,荧光母粒在PP纤维生产中具有流动改性和增白增艳双功能作用。荧光母粒与PP共混纺丝显示出优良的可纺性,所生产的荧光丙纶外观光亮、鲜艳、柔和,有效地提高了PP的装饰性能。 相似文献
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硅烷偶联剂在粘土胶中的抗热氧老化作用 总被引:2,自引:0,他引:2
本文主要讨论了硅烷偶联剂的抗热氧老化作用通过采用天然橡胶塑性保护率的测定方法、橡胶热空气老化试验方法、扫描电子显微镜分析等,对硅烷偶联剂对粘土胶性能的影响进行了探讨,研究结果表明硅烷偶联剂不仅可以大大提高材料的强度,而且有明显的抗热氧老化效果。 相似文献
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A new method of preparing rubber powders, especially masterbatch powders, is described. It consists of the dispersion of polymer latices in highly hydrophobic fine particle-size powders such as special silicas and carbon black, followed by drying. During the whole procedure the powders never lose their pourable state. Several powder properties, e.g., particle size distribution, pourability, bulk density, and angle of repose, are dealt with for NR and SBR powders. These powders require a high shear processing stage to disperse the black and rubber chemicals into the rubber matrix. For direct extruder feeding, a highly efficient extruder mixing screw is necessary. It is shown that the powders can be sufficiently protected against aging by use of special antioxidants. The procedure is characterized by an outstanding simplicity in respect to engineering and equipment. The future outcome of the method will depend on the balance between that simplicity and the energy demand which can be tolerated. 相似文献