共查询到19条相似文献,搜索用时 578 毫秒
1.
粘合树脂A250在子午线轮胎带束层胶中的应用 总被引:1,自引:0,他引:1
试验研究以粘合树脂A250替代间苯二酚在子午线轮胎带束层胶中的应用效果.结果表明,在子午线轮胎带束层胶配方中,采用2.5份粘合树脂A250替代1.5份间苯二酚,并采用快速促进剂NS,减小癸酸钴用量,胶料的加工安全性提高,硫化速度降低不明显;硫化胶各项物理性能变化不大,热空气老化后的撕裂强度明显提高,老化后胶料与钢丝帘线的粘合性能保持较高水平. 相似文献
2.
3.
研究2.5,2和1.5份粘合树脂用量对钢丝帘线粘合胶的胶料性能和钢丝帘线与粘合胶粘合性能的影响。结果表明:随着粘合树脂用量减小,钢丝帘线粘合胶的交联密度下降,硫化速度加快;胶料的邵尔A型硬度、定伸应力和拉伸强度呈减小趋势;老化前,随着粘合树脂用量减小,钢丝帘线与粘合胶的初始粘合力呈减小趋势,这与粘合树脂与亚甲基给予体形成三维网络减少有关;分别热老化和盐水老化7 d后,粘合树脂用量为2份的粘合胶与钢丝帘线的粘合力下降率最小。综合来看,粘合树脂用量为2份、粘合剂RA-65用量为4.1份时,粘合胶与钢丝帘线的粘合性能最佳。 相似文献
4.
5.
6.
研究粘合树脂KOTA在全钢载重子午线轮胎带束层胶中的应用,并与间苯二酚-甲醛粘合树脂进行对比。结果表明:在全钢载重子午线轮胎带束层胶中用粘合树脂KOTA等量替代间苯二酚-甲醛粘合树脂,胶料的门尼粘度略大,焦烧时间稍短,FL和Fmax略高,硫化速率变化较小;硫化胶的密度、硬度、定伸应力、拉伸强度、撕裂强度和钢丝帘线抽出力相差不大;胶料在混炼、压延过程中的刺激性气味基本消失,烟雾量明显减小,工艺性能良好;成品轮胎的耐久性能相当;胶料成本降低。 相似文献
7.
研究亚甲基给予体HMMM和间苯二酚-甲醛树脂(简称间甲树脂)SL-3020LFR并用比对半钢子午线轮胎带束层胶性能的影响。结果表明:随着HMMM/间甲树脂SL-3020LFR并用比的增大,胶料的Fmax-FL增大,焦烧时间和硫化时间均呈延长趋势;胶料的定伸应力略增大、老化后胶料的拉伸强度和拉断伸长率降幅增大;60 ℃下胶料的损耗因子先增大后减小;热空气、蒸汽和盐雾老化抽出后的钢丝帘线无露铜现象,钢丝表面均附有黑色胶料。综合来看,HMMM/SL-间甲树脂3020LFR并用比为1.6时,不同硫化和老化条件下胶料与钢丝帘线的粘合性能较佳。 相似文献
8.
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.
研制钢丝绳芯输送带粘合胶.粘合胶的优化配方为:NR 60,SBR 20,BR 20,炭黑N220 40,白炭黑15,氧化锌 5,硬脂酸 1,松焦油 7,防老剂4010NA/BLE-C 1/1.5,粘合剂RS/A 3/2.5,硼酰化钴 2.2,硫黄2.5,促进剂CZ 1.2.优化配方胶料综合性能良好,粘合性能优异,能够满足钢丝绳芯输送带使用要求. 相似文献
12.
In Yang Syehee Ahn In-gyu Choi Ho-Yong Kim Seichang Oh 《Journal of Industrial and Engineering Chemistry》2009,15(3):398-402
With an abrupt increase of petrochemical prices and the critical environmental issue related to the volatile organic compounds emitted from the adhesive resins, the development of environmentally friendly new adhesive systems is common issue. In our study, the okara, which is a residue from the production of tofu, was introduced to develop competitive bio-based adhesives for the production of fancy-veneered floor boards. Okara (AC and AK) was hydrolyzed with 1% sulfuric acid solution and 1% sodium hydroxide solution. Phenol–resorcinol–formaldehyde (PRF) prepolymer was prepared as a crosslinker of AC and AK. Adhesive resins were formulated with AC, AK and PRF prepolymer. The adhesive resins were used to fabricate floor boards composed of oak veneers onto high-density fiberboard. The experimental variables were three weight ratio of AC/AK to PRF (45/45/10, 40/40/20 and 35/35/30), three assembly time (0, 10 and 20 min), and two press time (90 and 120 s), respectively. The fancy-veneered high-density fiberboards were prepared and subject to testing of the dry tensile strength, glueline failure by wetting and formaldehyde emission. Dry tensile strengths of the boards exceeded the requirement of KS standard. The formaldehyde emissions were satisfied with the limitation specified in KS standard. Based on these results, okara has a potential to be used as a renewable raw material of environmentally friendly adhesive resin systems for production of floor boards, but further researches, such as biological hydrolysis of okara and various formulations of PRF prepolymer, are required to improve the adhesive strength and to reduce formaldehyde emission of okara-based adhesive resins. 相似文献
13.
研究镀铜钢丝帘线作为输送带骨架材料的粘合胶配方.结果表明,间-甲-白-钴体系能够增大镀铜钢丝帘线与橡胶间的粘合强度.确定最终镀铜钢丝帘线骨架输送带粘合胶配方为:NR 30,SBR 70,炭黑N330 45,白炭黑 15,氧化锌 9.5,硬脂酸 1,芳烃油 4,防老剂4010NA/BLE-C 2.5,粘合剂RF 3.6,粘合剂RA 2.4,硼酰化钴 1.2,硫黄 2.7,促进剂NOBS 1.该优化配方胶料邵尔A型硬度为70度,150 ℃×150 min老化前后的钢丝帘线抽出力分别达到1 260和1 185 N. 相似文献
14.
15.
研究环保型橡胶粘合剂XCB-2在全钢载重子午线轮胎胎体胶中的应用,并与间苯二酚和间苯二酚-甲醛树脂(以下简称间甲树脂)进行对比。结果表明:分别采用粘合剂XCB-2和间苯二酚-80等量替代间甲树脂,采用粘合剂XCB-2的胶料加工安全性最好,采用间甲树脂的胶料次之,采用间苯二酚-80的胶料最差;采用粘合剂XCB-2的胶料硫化速率与采用间甲树脂的胶料相当,均低于采用间苯二酚-80的胶料;采用粘合剂XCB-2的胶料物理性能和与钢丝帘线的粘合性能比采用间甲树脂的胶料略好;采用粘合剂XCB-2的胶料工艺性能良好,成本降低。 相似文献
16.
Cathodic delamination of neoprene-to-steel adhesive bonds prepared using a proprietary vulcanizing adhesive and primer was investigated using Fourier-transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Chlorinated rubber in the adhesive and primer was stable during immersion in NaOH solutions simulating the high pH conditions obtained at the bondline during cathodic delamination. However, methylene groups linking phenol moieties in phenolic resins in the primer were rapidly oxidized during immersion in NaOH solutions to form benzophenone linkages which were oxidized further to carboxylic acids and quinones. Chlorine produced by dehydrohalogenation of chlorinated rubber in the adhesive and primer during curing of the neoprene reacted with ZnO in the primer to form ZnCl2 in the bondline. Failure of adhesive bonds between neoprene and steel during cathodic delamination is probably related to oxidation of the phenolic resins in the primer and to osmotic effects related to the high solubility of ZnCl2. 相似文献
17.
18.
19.
介绍了煤矿用阻燃钢丝绳芯输送带的研制。主要包括骨架材料的选择、覆盖胶和粘合胶配方的设计以及实际生产工艺。经试验测试产品性能符合MT668-1997(煤矿用阻燃钢丝绳芯输送带技术条件》标准。 相似文献