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早田大祐
作者:管理员    发布于:2017-04-11 07:24:24    文字:【】【】【

  早田大祐:京都高分子化学硕士学位

  2010年至今在日本旭化成公司工作。作为副经理负责高性能轮胎的S-SBR研发。

  Daisuke Hayata received his master’s degree in Polymer Chemistry from Kyoto University.

  Since 2010, he has been working at Asahi Kasei Corporation.

  He is in charge of development of S-SBR for high-performance tires as an assistant manager.

  Title: Design and characterization of functionalized S-SBR for eco-tire with low rolling resistance and high wear resistance.

  题目:适用于低滚阻和高耐磨ECO轮胎的功能化SSBR的设计和特点

  Abstract:摘要

  Rolling resistance of tires has attracted much attention in the eco-tire industry because it strongly relates the fuel efficiency. Key technology for the reduction of the rolling resistance of the tire is to improve dispersion of fillers, e.g. silica, in the tread compounds. In this regards, some solution-styrene butadiene rubbers (S-SBR) with functional moiety at chain end have developed to achieve good interaction with silica fillers. Additionally, in recent, high wear resistance of the tire has also been desired even in the eco-tire treads. To improve these properties, it is strongly required further modification of the S-SBR.

  轮胎滚动阻力在ECO轮胎行业里引起了很大的关注,因为它与燃油效率息息相关。降低滚动阻力的关键技术是改善填料分散,例如,轮胎胎面胶里的白炭黑。在这方面,一些端基功能团改性的溶液聚合丁苯橡胶能和白炭黑填料达到很好的结合。另外,eco轮胎胎面也需要轮胎的高耐磨性。为了增强这些性能,强烈需要更好改性的S-SBR. 

  Asahi-kasei’s S-SBR provides significant improvement of the rolling resistance as well as the wear resistance of the tire tread compounds due to our unique functionalization and high molecular weight technologies. To improve rolling resistance property, our development of S-SBR for the eco-tire tread compounds has been focused on the functionalization of the both chain ends.

  The technology of the installing functional moieties which have a good interaction with silica into the both chain ends of the S-SBR enabled to achieve quite low hysteresis loss property due to an improvement of silica dispersion as well as a fixation of the free chain end on the surface of the silica in the compounds. The fixation of the free chain reduced an energy loss because it prevented the chain to move during tire rolling. To enhance wear resistance property, a polymerization technology to produce S-SBR which has a high molecular weight has been developed in our company. It has been well known that the molecular weight of S-SBR strongly relates wear resistance because breaking strength is enhanced by the increasing of the molecular weight.

  However, there were serious troubles in the manufacturing process to produce high molecular weight polymers which showed quite high viscosity. Note that we achieved to produce a quite high molecular weight S-SBR by an installation of a branching structure in the polymer chain because the structure enabled to decrease the polymer viscosity.

  旭化成S-SBR独特的功能化和高分子量技术对于轮胎的滚动阻力和胎面胶耐磨性有显著的提高。为了改善滚动阻力的性能,我们对eco轮胎胎面胶的S-SBR的研发重点放在了双端基官能团改性。SSBR双端基官能团引进技术可以改善白炭黑的分散性,同时把聚合物自由端固定在胶里的白炭黑表面,从而获得很低的滞后性能. 自由链端的固定降低了能量损失,是因为它在轮胎滚动期间防止了链的移动。为了提高耐磨性能,我们公司开发了生产高分子量S-SBR的聚合技术。众所周知SSBR分子量与耐磨性密切相关,因为随着分子量的增加,扯断强度也随之增强。可是,在生产很高粘度的高分子量聚合物的生产工艺里会存在很严重的问题。注意到这个后,我们通过在聚合物链上支链化技术,制造超高分子量的S-SBR,因为支链化结构能降低聚合物粘度。

  We will present our S-SBR grades and development strategy, the latest generation of functionalization technology, and the mechanism of such performance improvements.

  我们将展示不同的S-SBR牌号和开发策略,新一代的功能化技术,以及改善这些性能的机制。

 

  

  从位于水岛的乙烯中心为核心的基础化学品到善待环境的高功能材料、“旭包鲜®”等消耗材料,开展以旭化成的核心化学技术为基础的多种业务,推动国际领军型业务的进一步扩大和符合时代需求的高附加值化。

  石油化学:以化学公司的支柱——乙烯中心为核心,开展基础化学品和单体业务。1923年,在日本首次用Casale工艺将合成氨工业化以来,开展烧碱、氯、丙烯腈(AN)、苯乙烯(SM)、MMA、己二酸、聚乙烯、聚丙烯等业务,支撑着多种产业的生产。

  高功能材料:提供能够满足汽车和电子产品等多种市场需求的涂料原料、医药和食品添加剂、清洗剂、饮用水和工业废水等的处理用过滤膜、遍布世界各地的离子交换膜和装置、化药和金属加工等多个领域的高附加值产品。此外,将化学技术与电子领域的诀窍融合开发成功的薄膜等电子材料,是善待环境的高功能产品,为实现丰富的生活做着贡献。

  高功能聚合物:尼龙66树脂、聚甲醛树脂、改性PPE树脂及ABS・AS树脂等4种功能树脂,通过日本、亚洲、欧美的3极体制向全球供应。此外,还提供用于生产环保型轮胎的S-SBR等合成橡胶、树脂改质剂、粘结剂、医疗包等所用的弹性体。

  消耗材料:产品包括有张力、有韧性,因便于使用而著名的“旭包鲜®”;尺寸・形状种类丰富、便于保存食物的“Ziploc™”;善待环境、色彩丰富的餐具清洗剂“Frosch™”等。从扎根于生活的厨房容器到包装膜、清洗剂等工业用品,通过多种产品为更加舒适和考究的生活提供支持。

  更多旭化成公司详情……>>>

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