共查询到20条相似文献,搜索用时 562 毫秒
1.
对间苯二酚甲醛胶乳(RFL)浸渍液的配制、浸渍热处理工艺、浸渍帘线的储存稳定性、胶料性能对粘合性能的影响、试样粘合热老化性能和动态疲劳性能等进行了研究。结果表明,采用自制的SJR1配制RFL浸渍液,并优化浸渍热处理工艺,可提高尼龙66帘线与胶料的粘合性能;采用自制的聚丙烯酸酯(PAA)乳液改性RFL浸渍液,可提高浸渍帘线的储存稳定性;浸渍帘线与胶料复合材料的耐氮气热老化性能比较好;提高胶料的拉伸强度、撕裂强度和延长预硫化时间均有利于提高粘合性能。 相似文献
2.
3.
4.
聚酯和芳纶与EPDM及HNBR橡胶粘合的界面研究H.Janssen等著宋月贤摘译1.引言作为增强材料用的纱线或帘线通过浸渍间苯二酚-甲醛-胶乳(RFL)通常可获得与橡胶之间足够的粘合性能。其中间苯二酚-甲醛(RF)树脂提供与增强材料的粘合,而胶乳确保... 相似文献
5.
研究了一种基于植物多酚/多胺的芳纶帘线绿色环保浸胶体系(PTA浸胶液),并对比PTA浸胶液与间苯二酚-
甲醛-胶乳(RFL)浸胶液浸渍处理的芳纶帘线与橡胶的粘合性能。衰减全反射傅里叶转换红外光谱和X射线光电子能谱
分析结果表明,经PTA浸胶液浸渍后,丁吡胶乳包覆在芳纶帘线表面,其含有能参与橡胶硫化的C=C键,帘线的浸渍效
果良好;与RFL浸胶液浸渍的芳纶帘线相比,PTA浸胶液浸渍的芳纶帘线的原始及热老化后H抽出力稍高,室温停放后H
抽出力保持率提高;扫描电子显微镜分析表明,PTA浸胶液浸渍的芳纶帘线与橡胶基体的界面粘合良好。 相似文献
6.
7.
概述芳纶复合帘线的加工、粘合机理以及在轮胎中的应用。直捻机经过改进可用于芳纶复合帘线加工;芳纶表面改性、超声波处理、γ射线辐射和二次浸渍工艺等均可提高芳纶帘线的粘合性能;将芳纶复合帘线用于子午线轮胎带束层和冠带层、工程机械轮胎缓冲层等,可减小轮胎质量,提高抗刺扎性能,延长使用寿命。 相似文献
8.
聚合物帘线与橡胶粘合研究进展 总被引:13,自引:2,他引:13
从测试与分析方法、纤维与粘合剂的界面粘合、浸胶帘线与橡胶的粘合、间苯二酚-甲醛-胶乳浸胶层的物理机械性能等方面总结了人造丝、尼龙、聚酯和芳香聚酰胺等聚合物帘线与橡胶的粘合方法及最新进展。 相似文献
9.
10.
本研究的目的是当胶料中使用以硝基醇为基础的粘合体系时,对胶料实验室粘合试验观测到的粘合性能的提高与轮胎耐久性能的提高进行对比。在硫化过程中2-硝基-2-甲基-1-丙醇(NMP)和间苯二酚化合生成一种增粘树脂。在以前的研究中已证明NMP提高了典型帘布胶与帘布骨架材料之间的粘合性能。另外还证明了NMP体系和钴并用也可以提高典型的带束层胶料与镀黄铜钢丝帘线之间的粘合性能。本文继续研究用镀黄铜钢丝和聚酯帘线增强的轮胎胶料粘合性能的改善。实验室粘合试验表明,硫化胶老化前后的粘合性能均有所提高。还测定了硫化特性曲线和物理性能。粘合性能的改善预示着轮胎耐久性会提高。当NMP-PLUSTM(60%活化的白炭黑)在轻型载重轮胎(185SR14LT)中试验时,试验结果表明轮胎耐久性能大幅度提高。对轮胎试验数据、轮胎样品的粘合性能试验以及胶料性能作了评述。 相似文献
11.
The surface adhesion activation of poly(ethylene terephthalate) silk (PET silk) was accomplished through dipping in a reaction product of a water‐soluble modified epoxide resin (SJR‐2) and a precondensed resorcinol‐formaldehyde (SJR‐1), and by partial curing of the dip. Then, the adhesion activated sample was coated with a single resorcinol‐formaldehyde latex (RFL) dip prepared from SJR‐1. The effects of heat treatment conditions and formulation of impregnation solution as well as RFL prepared with water‐soluble SJR‐1 resin on the adhesion between PET silk and chlorohydrin rubber for aerial film were studied. High adhesion between PET silk and chlorohydrin rubber was obtained by using optimized RFL formulation and heat treatment condition, and the high levels of adhesion were maintained after oil impregnating test, dynamic fatigue and storage stability test. The PET silk possessed good adhesion to natural rubber (NR), chloroprene rubber (CR), hydrogenated nitrile rubber (HNBR), acrylonitrile‐butadiene and rubber (NBR), and chlorohydrin rubber (CHR). RFL filled with diffused carbon black improved the fatigue endurance and oil resistance of adhesion. The adhesion activator is nontoxic. This method of adhesion activation and RFL preparation for adhesion treatment of poly(ethylene terephthalate) silk is a practical technique with excellent technological, economical, and safety effects. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 2097–2099, 2003 相似文献
12.
13.
14.
15.
Y. Iyengar 《应用聚合物科学杂志》1971,15(2):267-276
Several factors in rubber stocks were demonstrated to be important in the adhesion of polyester tire cords to rubber compounds. The retained adhesion of polyester tire cords, determined after heat-aging laboratory cord–rubber samples at elevated temperatures, was improved by (a) eliminating the sources of amines in the elastomers and compounding ingredients, (b) reducing the moisture content of the stocks, (c) increasing the overall water vapor permeability (WVP) of the cord–rubber composite, and (d) lowering the modulus of the stock. Sulfenamide cure accelerators and water were found to be synergistic in reducing the retained adhesion of polyester cord after in-rubber aging at high temperatures. The harmful effects of amines released from sulfenamides during curing and heat aging were eliminated by compounding the stocks with accelerators that do not form amines. Aliphatic diamines present as nonrubber components in natural rubber (NR) were shown to be detrimental to adhesion. Since synthetic polyisoprene rubber (IR) does not contain any nonrubber components, IR stocks containing the nonamine accelerator benzothiazyl disulfide (MBTS) showed excellent retained adhesion to polyester cords. A recently developed nonamine-type accelerator gave adhesion essentially equal to MBTS but showed excellent scorch safety and high stock modulus typical of sulfenamides. The retained adhesion in IR stocks after heat aging was less dependent on moisture level and stock modulus than in NR stocks. Finally, examples of practical rubber compounds giving improved retained adhesion to polyester tire yarns are given. 相似文献
16.
17.
18.
19.
空气等离子体处理芳纶纤维及其与天然橡胶/乳聚丁苯橡胶的黏合性能 总被引:2,自引:0,他引:2
考察了空气等离子体处理对芳纶纤维表面结构形态的影响,研究了空气等离子体和间苯二酚-甲醛-胶乳(RFL)浸胶处理芳纶纤维与天然橡胶(NR)/乳聚丁苯橡胶(ESBR)的黏合性能,并对经处理的芳纶纤维与NR/ESBR体系的界面层作了动态力学分析。结果表明,芳纶纤维经空气等离子体处理后,表面粗糙度增大,表面积增加,结晶度减小,但处理功率过大、处理时间过长时,芳纶纤维的表面又变得比较光滑、结晶度又呈增大趋势。随着等离子体处理时间的延长,芳纶纤维与NR/ESBR的黏合性能增强,但处理时间过长时,芳纶纤维与NR/ESBR的黏合性能下降;等离子体处理芳纶纤维经RFL进一步浸胶处理后,芳纶纤维与NR/ESBR的黏合性能大幅度提高。芳纶纤维与NR/ESBR的界面存在介于高模量芳纶纤维和低模量橡胶之间的过渡层。 相似文献