（氟）硅橡胶—金属高温硫化粘接的研究

研究了（氟）硅橡胶与金属的高温硫化粘接,结果表明乙烯基三过氧叔丁基硅烷是硅橡胶（甲基乙烯基硅橡胶或氟硅橡胶）高温硫化粘接的良好增粘剂。溶液浸蚀分析证明硅橡胶与金属粘接界面的相互作用力包括色散作用和化学键作用。     

乙烯基氟硅橡胶的研究进展

介绍了乙烯基含氟聚硅氧烷的结构特点,阐述了热硫化型、加成型氟硅橡胶的硫化工艺及作用机制;综述了乙烯基氟硅橡胶的国内外改性研究进展,并对其各自的优缺点进行了分析。最后对乙烯基氟硅橡胶的发展方向进行了展望。     

液体硅橡胶

主要对目前市场上液体硅橡胶的种类、工艺性能和应用领域等进行了介绍.液体硅橡胶在加工工艺等方面比传统的热硫化硅橡胶更具有优势,液体硅橡胶的应用会越来越广泛.     

单组分室温硫化氟硅橡胶胶粘剂/密封剂的研究

利用阴离子开环聚合方法合成了羟基封端液体氟硅橡胶,用合成的氟硅橡胶为主体材料制备出单组分室温硫化氟硅橡胶胶粘剂/密封剂,该胶粘剂/密封剂具有透明、耐油、表干快和贮存稳定性好的特点,同时又保留了硅橡胶的通性。     

羟基封端氟硅橡胶的制备

研究羟基封端氟硅橡胶（ＨＦＳＲ）的制备方法。从多种制备方法中选出一种原料来源可靠，操作工艺简单的方法，来制备羟基封端氟硅橡胶，并考察了它的室温硫化性能。     

水基硅橡胶

简要回顾了室温硫化硅橡胶及水基硅橡胶的发展过程，介绍了水基硅橡胶的制备方法及交联机理，并对其交联过程、性能及用途作了较详细的阐述。     

液态氟硅橡胶弹性体

据报道,美国Momentive Performance materials公司拥有专利产品液态氟硅橡胶弹性体（FFSL）。该产品兼具氟硅橡胶的物理、化学性能（包括耐高低温性能、在宽的温度范围内的稳定性能）以及辅助硫化、铂催化的液体硅橡胶的独特加工性能和生产方面的优点。据该公司报道,液态氟硅橡胶产品能快速硫化,无胶边,无毛刺,全自动挤出成型,耐温范围宽,温度稳定性好。该产品的邵尔A硬度为40-70。     

热硫化型氟硅橡胶胶粘剂的耐热性能

研究了氟硅橡胶胶粘剂的热空气老化性能和高温粘接性能，结果表明，该胶粘剂用于氟硅橡胶与不同金属的热硫化粘接时，具有良好的耐热空气老化性能和高温粘接性能。     

缩合型室温硫化氟硅橡胶的研究

研究以苯胺甲基三乙氧基硅烷（南大－４２）为交联剂的单组分缩合型室温硫化氟硅橡胶和以硅氮化合物ＫＨ－ＣＬ或正硅酸乙酯为交联剂的双组分缩合型室温硫化氟硅橡胶的硫化性能及其粘接性能。     

液态氟硅橡胶弹性体

据“RubberWorld,2007,237（3）：48”报道,美国Momentive perfor mancematerials公司拥有专利产品液态氟硅橡胶弹性体。该产品兼具氟硅橡胶的物理、化学性能（包括耐高低温性能、在宽的温度范围内的稳定性能）以及辅助硫化、铂催化的液体硅橡胶的独特加工性能和生产方面的优点。据该公司报道,液态氟硅橡胶产品能快速硫化,无溢料,无毛刺,全自动挤出成型,耐温范围宽,温度稳定性好。该产品的邵尔A硬度为40～70。     

New binary systems containing TMTD‐amidino phenyl thiourea and CBS–amidinophenyl thiourea for the vulcanization and rheological behavior of natural rubber latex

The use of accelerators in rubber latex is basically different from their use in dry rubber. In the present study, N amidino N'phenyl thiourea (APT) which is more nucleophilic than thiourea was studied as a secondary accelerator along with tetra methyl thiuram disulphide (TMTD) and N‐cyclohexylbenzothiazyl sulphenamide (CBS) in the vulcanization of natural rubber latex. These binary systems were found to be very effective in reducing the vulcanization time. The optimum dosages for this non‐toxic secondary accelerator required were derived. Rheological studies of the compounded latex show that the introduction of APT in these systems does not have adverse effect in processing in comparison with the thiourea systems. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

橡胶的微波硫化技术研究进展

介绍了微波硫化技术的原理与研究现状,简述了微波连续硫化装置的发展情况,然后着重介绍了微波硫化在目前橡胶工业中的主要研究应用,特别是在橡胶封条、橡套电缆以及轮胎硫化中的应用,并展望了微波硫化技术在橡胶行业中的发展前景。     

Some factors affecting the electrical properties of carbon-black-loaded butyl rubber during vulcanization

Butyl rubber mixtures loaded with 70 phr general purpose furnace black (GPF) and tetramethyl thiuram disulphide (TMTD)/S as vulcanizing system were prepared. The kinetics of their electrical conductivity development during the vulcanization process were followed by using an especially devised system. It was found that the increase in the electrical conductivity during vulcanization obeys an exponential growth function with time constant τ, which markedly decreases with increasing vulcanization temperature as well as with the efficiency of the vulcanizing system. After completion of the vulcanization process, about 80 min, the samples obtained possess reasonable stability and reproducibility of electrical conductivity.     

橡胶辐射硫化技术的研究及应用

介绍了天然胶乳辐射硫化的研究成果以及橡胶辐射硫化技术的研究开发状况 ,总结了橡胶辐射硫化技术在橡胶制品方面的应用 ,并指出了橡胶辐射技术工业化存在的问题。     

Effect of fillers and additives on the properties of SBR vulcanizates

Methacrylic acid (MAA) and methyl methacrylate (MMA) were used as additives for peroxide‐cured styrene–butadiene rubber (SBR) filled with three inorganic fillers with different particle sizes and surface activity, for example, MgO, Mg(OH)₂, and BaSO₄. The experimental results show that the introduction of MAA can improve the mechanical properties of SBR vulcanizates filled with MgO, Mg(OH)₂, or BaSO₄. A small amount of MAA leads to significant increases in the modulus, tensile strength, and tear strength. MMA has little effect on the mechanical properties of the SBR vulcanizates. The SEM micrographs show that MAA can improve the interfacial bonding between SBR and the three kinds of fillers. The SBR–filler interaction was studied by Kraus plots. The relationship between the SBR–filler interaction and the mechanical properties was explored. m, a characteristic constant of a filler–SBR matrix, represents the interfacial bonding between fillers and SBR and the accumulated structure of the fillers. At a given ?, a high value of m means a strong interaction between SBR and the filler and, therefore, strong mechanical properties. The Payne effect of the SBR vulcanizates was observed, and the vulcanizates have low storage moduli at high strains and high storage moduli at low strains, and the moduli are nonlinear and increase the nonlinearity as the filler content increases. The loss moduli and loss factor reach their maximums at moderate and high strain amplitudes, respectively. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 775–782, 2003     

橡胶促进剂的发展趋势

简要介绍了橡胶促进剂的研发历史 ,重点介绍了近年来国际顶级助剂公司研究开发的新品种 ,尤其是耐热性能优异的新品和创新型超促进剂新品。橡胶促进剂的发展趋势是使用安全的绿色助剂产品     

天然橡胶超声硫化

成功地利用超声波对天然橡胶进行了硫化,所得试件展示了与传统硫化方法制得的试件相同的性能,但该工艺表现出许多传统硫化方法所不具备的优点.用滞后能量损失理论及声化学作用,解释了超声硫化的机理.用温频转换法,得到了天然橡胶混炼胶在高频条件下的动态力学性能,由此得到硫化开始阶段的温升曲线,该曲线与实验结果吻合.     

橡胶硫化促进剂的研究进展

概述了橡胶硫化促进剂的结构、类型、性能以及橡胶硫化反应机理的研究进展、硫化促进剂的性能表征方法。指出了国内外硫化促进剂的发展趋势。     

Synthesis and effect of surface modified nano ZnO in natural rubber vulcanization

It is well known that surface of ZnO acts both as a reactant and a catalytic reaction template in rubber vulcanization by activating and bringing together reactants. The particles of accelerators, fatty acid, and sulfur diffuse through the polymer matrix and get adsorbed on the surface of ZnO, forming intermediate complexes. Hence dispersion of ZnO in the elastomer matrix is a determining parameter. Capping is one of the novel techniques for increasing ZnO‐stearic acid/accelerator interaction, thereby enhancing their activities. During the sol–gel precipitation of nano ZnO, if a suitable capping agent is added, agglomeration of ZnO particles gets reduced, leading to the formation of nano particles. Since only very few studies are found reported on synthesis of accelerator‐capped ZnO and its application in rubber vulcanization, attempts have been made in this study to synthesize our novel accelerator N‐benzylimine aminothioformamide (BIAT)‐capped‐stearic acid‐coated nano ZnO (ZOBS), and BIAT‐capped ZnO (ZOB) to investigate their effects in natural rubber (NR) vulcanization. Efforts have also been made to synthesize stearic acid‐coated nano zinc phosphate (ZPS) with an aim to find an alternative to conventional ZnO in vulcanization. Mechanical properties like tensile strength, tear resistance, abrasion resistance, and compression set were found out. Swelling values of the vulcanizates as a measure of crosslink densities were also determined. Optimum dosage of ZOBS and a combination of ZOB and ZPS were also derived and found that capped ZnO is superior in NR vulcanization to conventional ZnO in improving cure properties including scorch safety and mechanical properties. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

Barrier properties of chlorobutyl nanoclay composites

Elastomeric materials are used as barriers to protect workers against exposure to chemicals. The effectiveness of a polymer as a chemical protective material depends on the rate of permeation of chemicals through it. The permeation rate is dependent on the type and amount of fillers added into the polymer matrix. In this study, Chlorobutyl nanoclay composites were prepared by addition of organically modified and unmodified nanoclays at different filler loadings. The nanocomposites were swollen in three solvents of varying cohesive energy density until equilibrium and desorption experiments were carried out. The data obtained from desorption experiments was used to determine the diffusion coefficients. The concentration‐dependent diffusion coeffecient (D) was calculated at high and low concentration regions and it was found that D is one‐order less in lower concentration region than in the higher concentration range. The aspect ratio of the nanoclay fillers in the composite was calculated by assuming square and disc shapes and it was found to vary with the type of solvent and the used and filler loading. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 3630–3637, 2006