胶料酸碱性对镀铜钢丝帘线粘合性的影响

胶料酸碱性对镀铜钢丝帘线粘合性的影响方昭芬一、前言液体有酸有碱，气体和固体亦不例外。气体可分为酸性气体和碱性气体；固体可分为酸性物质和碱性物质。橡胶与各种配合剂混合成为固体混炼胶时，可以看作是稠度为无穷大的液体，人们能观察到这种液体的流动──冷流现象...     

影响钢丝帘线与橡胶粘合力测定结果的因素分析

分析ASTM抽出法测定钢丝帘线与橡胶粘合力的影响因素，提出相应的操作注意事项。胶料的热炼工艺、试样制备、停放时间、抽出速度、夹具和衰减值等因素对粘合力试验结果均有影响。建议：①热炼时薄通8～12次，停放时用垫布；②硫化时下胶片高出模型沟槽1mm；③硫化完成至测定间隔16～72h；④下夹具应有中心圆孔。此外，对比试验样品的热炼停放时间、衰减值及抽出速度应一致。     

钴盐对钢丝帘线与橡胶粘合性能的影响

对环烷酸钴，硼酰化钴，新癸酸钴等钴盐粘合增进剂对高和低铜质量分数钢丝帘线与橡胶粘合性能的影响进行了研究。结果表明，胶料中加入钴盐能够提高强伸性能和与钢丝帘线的初始粘合唱 力及耐盐水老化能力。     

影响钢丝帘线与橡胶粘合性能的主要因素

分析了影响子午线轮胎用钢丝帘线与橡胶粘合性能的主要因素,其中包括钢线帘线的镀层组分及厚度、结构、表面状态、操作、包装贮存条件以及子午线轮胎的结构和胶料配方设计及生产工艺等因素。     

橡胶与镀黄铜钢丝帘线直接粘合系统的评述

本文就橡胶与镀黄铜钢丝帘线无间苯二酚最佳直接粘合系统的选择加以评述。     

镀黄铜钢丝帘线与胶料粘合应注意的基本问题

美国《橡胶世界》2 0 0 2年 2 2 5卷 5期 2 6页报道 :自从 2 0世纪 70年代初钢丝带束层子午线轮胎在美国出现以来 ,从未忽视过橡胶与钢丝帘线粘合的重要性。经过大量实验室和轮胎实际使用试验 ,找到了与子午线轮胎中钢丝有良好粘合性能的胶料。钢丝帘线的粘合机理也慢慢变得越来越明朗。许多年前已经众所周知 ,硫黄可增进ＮＲ与黄铜的粘合 ,同时也用作橡胶的硫化剂。但是 ,在某些条件下这种粘合有时会不均匀和容易失去。引起这种粘合强度下降的确切机理尚不得而知。在对包埋于胶料中镀黄铜钢丝帘线破坏试样的检验中 ,不时可以看到具有黄铜或…     

硼酰化钴对橡胶与镀黄铜钢丝粘合性能的促进作用

研究了硼酰化钴对橡胶与镀黄铜钢丝粘合性能的促进作用。试验结果表明,加入硼酰化钴ＲＣＢ１６和ＲＣＢ２３ 能大大提高橡胶与镀黄铜钢丝的粘合性能,在耐盐水老化和湿热老化等方面的效果尤为显著,并分别与Ｍａｎｏｂｏｎｄ Ｃ１６ 和Ｍａｎｏｂｏｎｄ ６８０Ｃ 水平相当。     

Effect of Anion in Cobalt Promoters on the Adhesion between Steel Cord and Rubber Compound

There is widespread use of two main groups of adhesion promoters, the SRH-system and an organic cobalt salt. They are used either jointly or individually in the rubber compound for promotion and maintenance of good adhesion of rubber to brass-coated steel cord in radial tyres.

This paper describes the influence of anions associated with cobalt promoters on the adhesion energy and the pull-out force between brass-coated steel cord and rubber and their relationship to other relevant physical properties, under the influence of various environments which simulate tyre service conditions.

It is observed that incorporation of a cobalt promoter greatly enhances the adhesion energy and influences the Young's modulus and crosslink density of the rubber compound in a similar fashion. The study establishes the supremacy of boroacylate among the anions considering its overall good performance and the protection offered against various hostile environments. However, the benefits of the cobalt promoter is not realised with stearate ion. The results are explained on the basis of chemical stability of the promoter and the properties of the interfacial film and the compounds.     

羟甲基化木质素/白炭黑并用对NBR与镀铜钢丝粘合性能的研究

研究了羟甲基化木质素/白炭黑并用对NBR与镀铜钢丝的粘合性能和物理机械性能的影响。结果表明：随着羟甲基化木质素/白炭黑并用比减小,NBR胶料与镀铜钢丝的H抽出力先增大后减小,H抽出后钢丝表面附胶的SEM照片显示粘合破坏发生在橡胶相,表明羟甲基化木质素/白炭黑并用可以有效提高NBR与镀铜钢丝的粘合。     

钴盐用量对橡胶与钢丝帘线粘合性能的影响

对硼酰化钴ＭＣ２３（钴质量分数为２３％）用量（０６～１６份）对橡胶与钢丝帘线粘合性能的影响进行研究。采用的基本配方为：ＮＲ１０００；炭黑Ｎ３２６６２０；芳烃油８０；氧化锌９０；硬脂酸０５；防老剂４０２０２０；不溶性硫黄ＩＳ７０２０６０；促进剂ＤＺ１０；粘合剂ＲＳ３５；粘合剂Ａ２３；沉淀法白炭黑５０。结果表明，随着钴盐用量的增大，在未老化、热空气老化及盐水老化条件下，胶料与钢丝的粘合强度有所提高；在湿热老化条件下，粘合强度由于热量和湿气的交互作用而发生较大幅度的下降，但钴盐用量在１０份时粘合强度的下降为最小。综合胶料初始和老化后的应力应变性能和粘合强度，以１０份钴盐用量为最佳。     

Effect of Tetrachlorobenzoquinone on the Adhesion between Rubber Compound and Brass-plated Steel Cord

The adhesion between tetrachlorobenzoquinone (TCBQ)-loaded rubber compound and brass-plated steel cord was studied to understand the role of TCBQ as an adhesion promoter. With loading of TCBQ in the rubber compound the cure rate became slow, but the change in physical properties was not significant. An improvement of the adhesion was obvious with low loading of TCBQ at the range of 0.5 phr while an adverse effect was observed with high loading at 2 phr. The addition of TCBQ for the improvement of adhesion has a greater effect before aging because TCBQ contributes to form a large surface area of copper sulfide via accelerated copper diffusion into the rubber bulk. However, higher TCBQ loading as well as longer aging time leads to a great extent of copper migration into the rubber and excess growth of zinc oxide layer, resulting in decreased adhesion. The adhesion interphase before aging, between a thin brass film and a rubber compound, investigated using AES showed no difference except that sulfur increased with increasing TCBQ loading. On the other hand, the adhesion inter-phase was changed after humidity aging. The copper content decreased at the adhesion interphase while it increased in the rubber layer with increasing addition of TCBQ.     

粘合体系对橡胶-镀锌钢丝绳粘合性能的影响研究

研究钴盐粘合体系、树脂类粘合体系和钴盐与树脂并用粘合体系对阻燃钢丝绳芯输送带粘合胶粘合性能的影响。结果表明:3种粘合体系对橡胶与镀锌钢丝绳的粘合均有增进作用,硼酰化钴的增进效果比粘合剂RE/A显著,硼酰化钴和粘合剂RE/A并用体系粘合胶的粘合性能最佳;硼酰化钴分别与粘合剂RK/A或粘合剂PER或粘合剂AS-88组成粘合体系时,粘合胶粘合性能优于硼酰化钴与粘合剂RE/A体系粘合胶,且胶料加工安全性好,硫化胶物理性能优异。     

Adhesion Between Rubber Compound and Copper-Film-Plated Steel Cord

Four copper-film-plated steel cords (abbreviated hereafter as copper-plated cord) with different thickness of copper film from 32 to 90 nm were prepared and their adhesion properties with rubber compound were investigated. Adhesion properties improved with the decrease in the thickness of the copper film. Unaged pull-out force and rubber coverage of copper-plated cords were inferior to those of brass-plated cord, but adhesion degradation was significantly slower on copper-plated cords resulting in better adhesion after humidity aging of 15 days and salt solution aging of 5 days. The excellent adhesion stability of copper-plated cords can be explained by the suppression of the excessive growth of copper sulfide and the inhibition of dezincification due to the small amount of copper plating and the lack of metallic zinc at the outer surface.     

The Influence of the Cation in Organometallic Boroacylate Adhesion Promoters on the Adhesion Between Steel Cord and Skim Rubber Compound

The influence of transition metal cations (cobalt, nickel and zinc ion) associated with organometallic boroacylate adhesion promoters on the adhesion between brass-coated steel cord and rubber skim compound under the influence of various environments, which simulate tyre service conditions, has been studied.

Incorporation of adhesion promoters individually in the steel cord-skim formulation leads to increase in crosslink density, Young's modulus and cord pull-out force. The adhesion energy is enhanced significantly with the addition of cobalt adhesion promoter. The performance of the promoter is influenced by the ease of dissociation of the transition metal ion from the promoter, its participation in the rubber curing and the modification of the interfacial film responsible for adhesion. During aerobic ageing, cobalt followed by nickel is found to be effective, whereas cobalt and, partially, zinc salts offer certain resistance to thermal ageing. Against salt and steam ageing, cobalt boroacylate is very effective followed by zinc salts. The influence of the variation of concentration of zinc ion on adhesion energy is not appreciable. The study points towards the supremacy of cobalt ion among the cations studied, considering its overall good performance and the protection offered against various hostile environments.