| The application research on the composite cobalt salt FH-20 as ‘concerted catalysis’ in belt compound |
| Received:August 03, 2016 Revised:August 03, 2016 |
| DOI： |
| Key Words: concerted catalysis;composite cobalt salt;adhesion;belt |
| Author Name | Affiliation | E-mail | | Yue Peng-yuan* | College of Chemical Engineering,Qingdao University of Science and Technology | 825755679@qq.com | | Wu Ming-sheng | College of Polymer Science and Engineering,Qingdao University of Science and Technology | | | Yan Zhong-qing | Zhenjiang Fanhua New Material Technology Development Co Ltd | | | Chen Xiu-juan | Zhenjiang Fanhua New Material Technology Development Co Ltd | | | Cao Chang-qing | College of Chemical Engineering,Qingdao University of Science and Technology | |
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| Abstract: |
| In this paper,the rubber formulation of belt in radial tire was used,through researching on the amount of the composite cobalt salt FH-20 which is served as ‘concerted catalysis’,the influence to the vulcanization characteristics,physical and mechanical properties of vulcanized rubber and adhesive property of compound with belt layer’s steel is obtained, the mechanism of promoting adhesion is also discussed preliminary.The results shows: with the increase of FH-20’ amount,the torque’s difference between the maximum and minimum is increase, the scorch time and the process curing time is shorten,the hardness and tensile stress at given elongation of vulcanized rubber is increase,this shows that FH-20 have the effect to promote the the vulcanization of rubber;with the increase of FH-20’amount,the tensile strength and the rebound rate increase first and then decrease,the tearing strength basically unchange,but the ageing resistance of compound is decrease;compared with compound which is added 0.9 phr cobalt neocaprate and 0.9 phr cobalt boronacylate,when the amount of FH-20 is 0.45 phr,the adhesive property of conpound with steel is equivalent,the mechanical property and ageing resistance is better;the analysis of thermal weight loss shows that the temperature of initial decomposition of FH-20 is lower than cobalt neocaprate,it shows higher chemical activity,it is the main reason for the low amount and high adhesion activity.The cobalt content of FH-20 is about 75% of cobalt neocaprate and the amount is only half of the cobalt neocaprate,the cobalt content in compound is only 40% of the conpound with cobalt neocaprate, it is initially achieve the goal of ‘low cobalt content’ in cobalt salt binder,and it can reduce the cost of user’s product. |
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