ABS／硅油混合物力学性能的研究

通过采用旋转回归设计，对影响ＡＢＳ／硅油混合物力学性能的各种因素进行了研究，通过对比发现，在ＡＢＳ树脂中加入硅油能大大提高其力学性能；同时考察了滑石粉对ＡＢＳ／硅油混合物力学性能的影响，并确定了制作轿车门立柱，门内基板等内装饰件的ＡＢＳ／硅油混合物配方。     

硅油粘度对ABS/硅油混合物性能的影响

通过硅油粘度对ＡＢＳ／硅油混合物性能的影响进行比较深入的研究，从而最终确定了制作门内基板、门立柱等轿车内装件的ＡＢＳ／硅油混合物专用料所使用的硅油粘度范围。     

硅油用量对ABS／硅油混的性能的影响

采用旋转回归设计，研究了硅油用量对ＡＢＳ／硅油混合物性能的影响，确定了为制作 门内基板，门立柱等轿车内装件所用的ＡＢＳ／硅油混合物专用料的配比。     

ABS/硅油混合物摩擦性能研究

本文通过采用旋转回归设计,对影响ＡＢＳ／硅油混合物摩擦性能的各种因素进行了比较深入的研究,通过摩擦性能对比,发现在体系中加入硅油确实使体系在摩擦性能上有较大幅度的提高,同时也考察了滑石粉对ＡＢＳ／硅油共混物摩擦性能的影响,从而最后确定了制作轿车门立柱、门内基板等内饰件ＡＢＳ／硅油混合物的配方。     

硅油种类对ABS／硅油混合物性能的影响

研究了硅油种类对ＡＢＳ／硅油混合物性能的影响,进而确定了制作门内基板,门立柱等轿车内装件的ＡＢＳ／硅油混合物专用料所使用的硅油种类。     

ABS/硅油混合物熔体流动性研究

采用旋转回归设计，研究了影响ＡＢＳ／硅油混合物熔体流动性能的各种因素，发现粘度为９００～１５００ｍｍ２／ｓ的二甲基硅油可使体系熔体流动性能有较大幅度的提高；滑石粉用量过多过少都会损害体系的熔体流动性。     

ABS／硅油混合物熔体流动性研究

采用旋转回归设计，研究了影响ＡＢＳ／硅油混合物熔体流动性能的各种因素，发现粘度为９００￣１５００ｍｍ＾２／ｓ的二甲基硅油可使体系熔体流动性能有较大幅度的提高；滑石粉用量过多过少都有损害体系的熔体流动性。     

硅油改性ABS的研究及应用

介绍了ＡＢＳ树脂、硅油国内外生产概况、重点介绍了硅油改性ＡＢＳ树脂研究进展和ＡＢＳ／硅油共混物应用进展,并提出了我国进一步开发ＡＢＳ／硅油共混物的建议     

硅油粘度对ABS／硅油混合物性能的影响

通过硅油粘度对ABS／硅油混合物性能的影响进行比较深入的研究，从而最终确定了制作门内基板、门立柱等轿车内装件用ABS／硅油混合物专用料所使用的硅油粘度范围。     

硅油改性ABS的研究及应用进展

本文介绍了ＡＢＳ树脂,硅油国内外生产概况,重点介绍了硅油改性ＡＢＳ研究进展和ＡＢＳ／硅油共混物应用进展,并提出了我国进一步开发ＡＢＳ／硅油共混物的建议。     

顺丁橡胶对硅橡胶/丙烯酸酯橡胶并用胶的增容作用

采用偏光显微镜、差示扫描量热仪以及力学性能、热老化性能测试手段,研究了顺丁橡胶(BR)增容的甲基乙烯基硅橡胶(MVQ)/丙烯酸酯橡胶(ACM)共混体系的并用比(质量比)、硫化工艺参数以及BR的加入对并用胶力学性能、耐热老化性能和相容性的影响。结果表明,BR的加入改善了MVQ/ACM并用胶的力学性能和耐热老化性能,当白炭黑用量为30份、BR/MVQ/ACM的并用比为25/45/55时,并用胶的力学性能和耐热老化性能最好;最佳硫化工艺参数为70℃×10 MPa×30 min;加入BR可以改善MVQ/ACM并用胶的相容性,且使其玻璃化转变温度降低,耐低温性能提高。     

Surface behavior of blends of SBR with ultrasonically devulcanized silicone rubber

The application of silicone polymers as additives in commercial polymers for improving their surface properties is an attractive method. Use of reclaimed silicone rubber for blending with commercial organic polymers is an equally attractive possibility. Ultrasonically devulcanized silicone rubber was mixed with virgin and ultrasonically devulcanized styrene–butadiene rubber (SBR). The surface and bulk mechanical properties and curing behavior of the blends of SBR with ultrasonically devulcanized silicone rubber were investigated. Contact angles of these blends were measured, and the concentration of silicone rubber on the surface was calculated. It was shown that the soluble part of devulcanized silicone rubber migrates to the surface. The addition of 5 phr of devulcanized silicone rubber led to the formation of a continuous surface layer containing 100% silicone rubber. In general, the mechanical properties of the blends remain intact and, in some cases, are even better than those of SBR. Curing behavior shows that the blends have the similar cure kinetics as virgin or devulcanized SBR, but a lower final torque. © 1998 John Wiley & Sons, Inc. J. Appl. Polym. Sci. 69: 2691–2696, 1998     

硅橡胶/氯化聚乙烯泡沫合金材料的阻尼性能研究

采用机械共混法制备了硅橡胶/氯化聚乙烯泡沫合金材料,研究了硅橡胶/氯化聚乙烯共混胶相容性及热处理时间对泡沫合金材料密度、泡孔结构及阻尼性能的影响。结果表明,硅橡胶/氯化聚乙烯共混胶具有较好的相容性;与实心共混胶相比,泡沫合金材料的阻尼性能显著提高,损耗因子从0.43提高到0.68,损耗因子大于0.3的有效阻尼温域从16℃拓宽到45℃,玻璃化转变温度向高温偏移了13℃左右;当受到热处理之后,泡沫合金材料的阻尼性能降低。     

氟橡胶/甲基乙烯基硅橡胶共混弹性体的性能

通过机械共混法制备了氟橡胶(FKM)/甲基乙烯基硅橡胶(MVQ)弹性体,研究了二者的质量比对共混弹性体力学性能、耐油性能和动态力学性能的影响.结果表明,当FKM/MVQ(质量比,下同)为80/20时,共混弹性体具有较好的综合力学性能.随着FKM所占比例的增加,共混弹性体的耐油性能提高.当振动频率为1 Hz时,共混弹性体中MVQ相的玻璃化转变温度(Tg)比MVQ的Tg提高了约5.0 ℃,而FKM相的Tg改变不大;当FKM/MVQ为60/40时,随着振动频率由1 Hz增大到50 Hz,FKM相的Tg升高了12.9 ℃,而MVQ相的Tg变化不大.     

Curing behavior,mechanical properties,intermolecular interaction,and morphology of silicone/polypyrrole/polymer electrolyte composites

The curing behavior, mechanical properties, intermolecular interaction, and morphology of silicone, polypyrrole, and polymer electrolyte composites were studied. A rigid‐body pendulum rheometer was used to determine the curing behavior of silicone/PEL blends. The polymer structure was evaluated using FTIR and Differential Scanning Calorimetery. The mechanical properties, including stress, strain, and hardness, were measured using a material testing system. The morphology of the composites was measured using scanning electron micrographs. The intermolecular interaction of the composites was measurement using dynamic mechanical analysis. The results show that the curing reaction rate is fast upon addition of 10 wt % of polymer electrolyte for silicone. The linear molecular structure of the polymer electrolyte was wound around the silicone polymer network structure forming a semi‐interpenetrating network. The intermolecular interaction was influenced by the composites, and the Ppy film effect on the surface of SP10 blends is more uniform than that of silicone. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2754–2764, 2006     

热缩型硅橡胶复合绝缘子的研制

研究了乙烯醋酸乙烯共聚物（EVA）、硅橡胶（PDMVS）和氢氧化铝不同配比时所组成的共混物的力学性能和电学性能及辐射交联对EVA／KPDMVS共混物的凝胶含量和力学性能的影响规律，确定了适合的辐交联剂量及利用该共混物制备热缩型硅橡胶复合绝缘子的工艺条件。     

白炭黑/炭黑混合填料对氟橡胶/硅橡胶共混胶性能的影响

采用沉淀白炭黑和高耐磨炭黑作为氟橡胶/硅橡胶共混胶的填料.研究以不同质量比混合的沉淀白炭黑和高耐磨炭黑对氟橡胶/硅橡胶共混胶的硫化特性、门尼粘度、力学性能、耐热老化性能和耐油性能的影响,并通过RPA分析表征填料-填料的相互作用,采用SEM表征白炭黑/炭黑混合填料在氟橡胶/硅橡胶共混胶中的分散性.结果表明,随着混合填料中白炭黑所占比例的增大,氟橡胶/硅橡胶共混胶的硫化转矩升高,焦烧时间(t10)缩短,正硫化时间(t90)延长,门尼粘度增大.氟橡胶/硅橡胶共混胶的力学性能,耐热老化性能和耐油性能都随着混合填料中白炭黑用量增多而提高.RPA分析表明,全部采用白炭黑补强的共混胶Payne效应最明显,炭黑补强的共混胶Payne效应最弱.SEM分析表明,白炭黑在共混胶中分布比炭黑更加均匀,填料聚集体粒径较小.     

Morphology and properties of poly(vinylidene fluoride)/silicone rubber blends

Blends of poly(vinylidene fluoride) (PVDF) and silicone rubber (SR) were prepared through melt mixing. The morphology, rheology, crystallization behavior, mechanical properties, dynamic mechanical properties and thermal properties of the PVDF/SR blends were investigated. The blend with 9 wt % of SR showed spherical shape of disperse phase whereas the blend with 27 wt % of SR resulted in irregular shape of rubber phase. The rheology showed that the complex viscosity and storage modulus of the blends decreased with increasing the SR content. The mechanical properties of the blends were decreased with increasing the SR content but that were significantly improved after dynamical vulcanization. The crystallization temperature of PVDF phase in PVDF/SR blends was increased. The incorporation of SR improved the thermal stability of PVDF/SR blends, and the temperature at 10% mass loss of the blends increased to about 489°C compared with 478°C of the pure PVDF. The mass of residual char in experiment of the blends was lower than that obtained in theory. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 39945.     

聚苯乙烯增强室温硫化硅橡胶的制备及表征

以过氧化苯甲酰为引发剂,使苯乙烯在α,ω-羟基聚(二甲基-甲基乙烯基)硅氧烷(PDM-MVS)中进行自由基聚合,制备了PDM-MVS/聚苯乙烯(PS)共混物。将该共混物在室温下进行硫化,获得了PS增强的室温硫化硅橡胶,并对硅橡胶的力学性能和微观形态进行了表征。结果表明,目标硅橡胶的拉伸强度和扯断伸长率均随PDM-MVS中乙烯基质量分数的增加而增大,当乙烯基质量分数为1.50%时,其拉伸强度达3.9 MPa,扯断伸长率达416%,PS的增强效果明显;目标硅橡胶具有微相分离结构,PS作为分散相均匀分布于PDM-MVS连续相中,两相的相容性随着PDM-MVS中乙烯基质量分数的增加而增强。     

硅橡胶／EPDM／ⅡR共混的研究

研究了硅橡胶/三元乙丙橡胶/丁基橡胶的共混技术与硫化体系。对增容剂、共混比例等对共混胶的力学性能的影响进行了探讨。KH570适宜于作为共混增容剂;共混胶宜于采用DCP硫化,也可以采用硫黄硫化,随着丁基橡胶含量的增加,其力学性能有大幅度提高,并出现最佳值点。