TPR鞋底表面处理剂的研制

本文采用苯乙烯、丙烯酸接技改性SIS合成TPR表面处理剂，解决TPR鞋底粘合的问题；着重探讨影响表面处理剂合成的因素及对TPR表面处理能力的关系即对粘合强度的影响。     

水性丙烯酸酯共聚物EVA表面处理剂的合成

采用乳液聚合法合成丙烯酸酯EVA表面处理剂,研究丙烯酸、丙烯酸丁酯、醋酸乙烯酯、丙烯腈和甲基丙烯酸缩水甘油酯等单体对丙烯酸酯EVA表面处理剂乳液性能的影响。所制备的丙烯酸酯EVA表面处理剂对交联程度低的EVA发泡鞋底具有良好的处理效果。     

PVC表面处理剂的研制

介绍了几种表面处理剂对PVC革剥离强度的影响 ,从中选择出最佳表面处理剂A ,并把处理剂A干燥时间对剥离强度的影响作一讨论 ,确定适宜的干燥时间     

MAH—g—PP及偶联剂处理木粉填充PP的研究

以松木粉对聚丙烯进行填充改性,比较了MAH－g-PP、铝酸酯和铝钛偶联剂三种表面处理剂对松木粉的处理效果,研究了木粉填充量以及NaOH溶液预处理对木粉填充改性PP性能的影响。     

TPR表面处理剂的研制

采用甲基丙烯酸甲酯、丙烯酸接枝改性SBS,合成TPR表面处理剂,解决了传统TPR鞋材之间粘接强度不大等问题。讨论了影响表面处理剂质量的因素。     

水性聚氨酯胶粘剂及其配套水性固化剂在鞋材粘合中的应用

制备水性聚氨酯胶粘剂820W(以下简称820W)及其配套水性固化剂WRC(以下简称WRC),对以鞋面用油皮与鞋底用改性热塑性橡胶(TR)胶片的粘合进行研究。结果表明,采用处理剂对油皮和TR胶片表面进行处理及进行紫外线照射和超声波水洗,820W和WRC能够满足制鞋厂对油皮和TR胶片粘合性能的要求,可用于鞋材粘合。     

超细黑索今在水中的分散性研究

选择了几种典型的表面处理剂,以单一或复合的形式对超细RDX粒子进行表面处理,通过测定分散体系的浊度以及粒子表面的Zeta电势,研究超细粒子在水中的分散性,以及表面处理剂在RDX表面上的吸附机理和吸附处理后粒子的双电层性质,并对表面处理剂进行优选。     

表面处理剂对PVC仿木复合材料性能的影响

使用4种不同类型的含高活性反应基团的聚氨酯处理剂对木粉表面进行处理,并制备了聚氯乙烯(PVC)/木粉复合材料,研究了表面处理剂的交联度、不同用量和高活性反应基团—NCO的含量对复合材料性能及结构的影响。结果表明,使用聚氨酯处理剂对木粉表面进行处理可以明显改善复合材料的流变性能,并明显提高复合材料的力学性能;扫描电镜观察表明,木粉经聚氨酯处理剂改性后与PVC的相容性明显得到改善。     

无三苯加强型EVA表面处理剂的研制

采用甲基丙烯酸甲酯(MMA)、甲基丙烯酸羟乙酯(HEMA)、马来酸酐(MAH)以及改性单体接枝改性乙烯-醋酸乙烯酯(EVA)和氯化聚丙烯(CPP)树脂,用醋酸乙酯、甲乙酮等溶剂溶解改性后的树脂制得EVA处理剂。接枝改性后的红外谱图显示1780 cm-1和1861cm-1两处的吸收峰比接枝前明显增大,同时1150cm-1为出现酸酐中醚键的C-O-C伸缩振动峰。测试该处理剂对EVA鞋底的处理效果,结果表明能解决大部分EVA鞋底的粘合问题。     

硅烷/钛酸酯复配偶联剂对水镁石粉/LDPE性能影响

比较了硬酯酸、硅烷、钛酸酯和铝酸酯四种表面处理剂对水镁石粉体表面改性活化效果,根据硅烷和钛酸酯对体系的影响优势用二者复配对该粉体进行表面处理,作为阻燃剂研究了它对LDPE体系的加工性能、拉伸性能及阻燃性能的影响。采用拉伸性能、氧指数将其和最大热释放速度等以及熔融指数对阻燃材料的性能进行了表征。结果表明:复配表面处理剂/水镁石粉/LDPE体系比单一表面处理剂/水镁石粉/LDPE体系的综合性能有显著提高,处理后的粉体填加量比单一表面处理剂改性的粉体填加量多20phr。     

活性白土在丁苯橡胶体系中的应用

透明白炭黑通常作为丁苯橡胶的补强剂，制成浅透明色的硫化胶鞋底。采用矿物白土经活化处理制成活性白土，其在丁苯硫化胶的色泽及物理力学性能已达到或超过透明白炭黑，降低了硫化胶鞋底的成本。     

聚氨酯鞋底料发展状况和展望

分析了聚氨酯鞋底料特别是聚醚型聚氨酯鞋料的发展前景和研发过程中应引起注意的问题，对比了EVA鞋中底与PU鞋中底的性能，介绍了国外该领域的发展现状以及国外几种聚醚型聚氨酯鞋底料。     

我国胶鞋行业现状及今后发展的预测

论述了我国胶鞋行业的现状。我国已成为世界最大的胶鞋生产国和出口国。“八五”期间胶鞋行业产业结构发生了较大变化、胶鞋企业向集团化、公司化发展，其分布由城市移向农村、由劳务成本高的地区向劳务成本低的地区转移，“三资”企业数量逐步扩大。在生产技术上胶鞋行业已形成了以热硫化工艺为主，冷粘、注塑、模压和浇铸等多种工艺并举的局面。在产品品种上，高、中档鞋比例超过１／４。     

Formulation and characterization of leather and rubber wastes composites

Residues from footwear roughing and carding operations represent 5–15% (w/w) of the solid wastes generated by shoe‐making companies. These wastes are mainly composed by chromium tanned leather and sole materials, and are mostly land filled. Sometimes leaching tests show these wastes as hazardous due to chromium in the leachate. This work aims at a more sustainable option for these wastes by recycling them in styrene butadiene rubber (SBR) and acrylonitrile butadiene rubber (NBR). Thus, they were charged with: (i) ≤1 mm leather waste fibers in the range of 10–25 parts per hundred parts of rubber (phr); and (ii) leather and soles industrial carding and roughing wastes in the range of 20–100 phr. The leather waste fibers‐rubber composites tear strength is increased till 25 phr and both tension and elongation at break decrease within the acceptable range till 12.5 phr for SBR and 15 phr for NBR. In the case of leather and sole carding and roughing wastes, composites tear strength increases till 100 phr, and tension and elongation decrease within the acceptable range till 20 phr. The composite materials at the end of their life cycle may be considered inert or non‐hazardous wastes. POLYM. ENG. SCI., 2011. © 2011 Society of Plastics Engineers     

Effects of overhalogenation of a synthetic vulcanized styrene–butadiene rubber sole on its adhesion behavior

The effects of halogenating the same synthetic vulcanized styrene–butadiene rubber (R2) (used as a sole material in the shoe industry) twice (double halogenation) using solutions of trichloroisocyanuric acid (TCI) in MEK were studied. The R2 rubber was treated with 0.5 and 2 wt% TCI/MEK solutions and after 1 h re-treated with additional 0.5 (0.5 + 0.5 wt% TCI/MEK) and 2 wt% TCI/MEK (2 + 2 wt% TCI/MEK) solutions. The results obtained were compared with those obtained by treating the R2 rubber once with 1 and 4 wt% TCI/MEK solutions. The surface modifications produced by the double halogenation of the R2 rubber were analyzed using advancing and receding contact angles (variations in wettability), XPS and ATR-IR spectroscopy (characterization of chemical modifications) and SEM (morphological modifications). T-peel tests on doubly halogenated R2 rubber/polyurethane adhesive joints were carried out to quantify the adhesion properties of the treated R2 rubber. The degree of chlorination was higher with increasing amount of chlorinating agent. Furthermore, the most efficient removal of hydrocarbon substances from the R2 rubber surface was obtained by double halogenation and by increasing the TCI concentration. Similar trends in surface chemistry of the R2 rubber were obtained using 0.5–2 wt% TCI/MEK, with or without double halogenation. On the other hand, by comparing the effects of treatments with 0.5 + 0.5 wt% TCI/MEK and 1 wt% TCI/MEK or with 2 + 2 wt% TCI/MEK and 4 wt% TCI/MEK, less effective removal of zinc stearate and less degree of chlorination were obtained by double halogenation although similar outermost surface modifications were produced. The second application of the TCI/MEK solution on the already halogenated R2 rubber dissolved the unreacted TCI and/or the isocyanuric acid crystals on its surface. The mechanical properties of the treated R2 rubber decreased because it became stiffer. Higher and relatively similar peel strength values were obtained in all adhesive joints prepared using treated R2 rubber. A cohesive failure in the rubber close to the chlorinated layer was always obtained.     

聚醚型微孔聚氨酯鞋底材料研究

介绍了烟台万华改性MDI产品Wannate 8617在微孔聚氨酯鞋底领域的应用研究结果,考察了密度、硬度以及增强填料对微孔聚氨酯弹性体性能的影响。结果显示使用Wannate 8617制得的微孔聚氨酯弹性体在机械性能方面,尤其是耐磨性和曲挠性能方面可以满足鞋底的实际使用要求。     

浅析聚氨酯鞋底生产过程中影响质量的因素

研究分析了聚氨酯(PU)鞋底生产过程中影响产品质量的主要因素。实践证明:多元醇组分(A液)与异氰酸酯组分(B液)的配比是生产中的关键。准确掌握原液质量,严格控制生产温度,尽量维持系统内压力恒定,以确保A、B液配比在一定范围内,才能生产出合格的聚氨酯鞋底。     

提高胶鞋生产中合成橡胶使用比的讨论

对我国胶鞋生产中合成橡胶使用比偏低的原因作了探讨和分析，并认为应该而且完全可以在现有使用比基础上加以提高。     

国产NBR改性PVC注塑皮鞋底材的研制

本文研究用国产ＮＢＲ粉料和团块料作ＰＶＣ改性剂，以注塑法制造皮鞋底材的配方和加工工艺，并在实验研究的基础上，工业化试产出性能符合国标和部标的国产ＮＢＲ改性ＰＶＣ鞋用粒料和底材。     

Polar copolymer–surface-modified precipitated silica

To improve the performance of rubber compounds using precipitated silica as a reinforcing filler, the silica surface was directly modified by (1) adsorption of a surfactant onto the surface, (2) adsolubilization of an organic monomer, (3) in situ polymerization of the monomer in the surfactant bilayer, and (4) partial surfactant removal. Silica was thus modified using copolymers of isoprene or 1,3-butadiene with vinyl acetate, acrylonitrile, 4-methoxystyrene, 4-chlorostyrene, and methyl methacrylate on the silica surface. 4-Methoxystyrene/butadiene modification afforded the most promising candidate based on evaluation in a silica-filled, natural/styrene-butadiene rubber shoe sole compound that also has been used as a model tire compound. Physical testing showed that cure times were decreased, and break strength, tear energy, elongation to break, and cut growth resistance were increased. Thus, surface modification of silica by the in situ polymerization of organic monomers has been shown to be a flexible process capable of producing unique materials useful in improving rubber cure properties and the cured compound physical properties. © 1996 John Wiley & Sons, Inc.