Page 102 - 《橡塑技术与装备》2023年3期
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橡塑技术与装备 CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT
次磺酰胺类促进剂 CBS、DCBS、TBBS 只有在硬脂 [3] Adriaan S. Luyt,etal. DSC study of the interaction of 2-me
rcaptobenzothiazole,sulphur, ZnO and stearic acid in the
酸存在时,在一定的加热条件下,可以与硬脂酸发生
absence of rubber[J]. British Polymer Journal, 1990,vol(23),135-
反应,生成苯并噻唑锌盐 ZMBT。 139.
[4] Pierre C C, Datta R N. Spectroscopic studies on reaction
between squalene and vulcanizating agents in the presence
参考文献 :
[1] W. 霍夫曼著,王梦娇,曾泽新,等 . 石油化学工业出版社。 and absence of zinc-2-mercaptopyridine-n-oxide[J].
[2] Geert Heideman, Rabin N. Dat ta, etal. Act ivitors in Rubber.Chemistry and Technology , 2004 , 77(2):201.
accelerated sulfur vulcanization[J]. Rubber chemistry and [5] Pierre C C, Datta S, Datta R N.Chemistry of various
technology,2004,Vol(77) ,512-541. accelerators in an E-SBR model compound[J] .Rubber
Chemistry and Technology, 2006, 79(1):1.
Study on the reaction mechanism of benzothiazole sulfonamide
accelerator with stearic acid and zinc oxide by in-situ infrared
spectroscopy
Cao Cuiling, Jiang Huabo, Yang Zefu
(Zhuoyetai Seiko Co. LTD., Qingdao 266199, Shandong, China)
Abstract: In this paper, the reaction mechanism of benzothiazole sulphonamide accelerants was studied
by in situ infrared spectroscopy. The experimental results show that in the presence of stearic acid and zinc
oxide, when heated to a certain temperature, benzothiazole-hyposulphonamide accelerant reacts with
stearic acid and zinc oxide to form benzothiazole zinc salt, which provides an important basis for inferring the
sulfuration mechanism of benzothiazole-hyposulphonamide accelerant in rubber vulcanization process.
Key words: in situ infrared spectroscopy; Raman spectroscopy; benzothiazole hypoxanthamide
accelerator
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中国轮胎出口关税有望降低!欧盟终裁结果即将出炉
Chinese tire export tariffs are expected to be reduced! EU final ruling results will be released soon
近日,据外媒报道,欧盟委员会在终裁前披露中决定,对中国生产的卡客车轮胎重新计算进口反倾销、反补
贴(以下简称 “ 双反 ”)措施水平。
按照新的算法,每条涉案轮胎进入欧盟的时候,需缴纳 21.12~61.76 欧元(约 154.1 元人民币至 450.7 元人民币)
的关税,相当于降低了 0% 至 51%。
欧盟委员会对不同企业生产的轮胎,征税幅度不一样。韩泰轮胎为 21.12 欧元(约 153.77 元人民币),风
神、PTG、佳通、中策在 42~57 欧元(约 305.8 元 ~415 元人民币)之间,潍坊跃龙和合肥万力为 61.76 欧元(约
449.67 元人民币)。
临时重新计算后,有关部门将进行协商。最终决定将于 2023 年 1 月 25 日作出,在此之前他们可能再次调整
关税数额。最终决定后,可能在 2~3 个月内征收新关税。目前,中国橡胶工业协会已申请了听证会,正在准备针
对终裁前披露的评论意见。
摘编自 “ 中国轮胎商务网 ”
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