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Effect of process parameters on the adhesion strength in two-component injection molding of thermoset rubbers and thermoplastics

机译:工艺参数对热固性橡胶和热塑性塑料双组分注射成型粘合强度的影响

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摘要

Recently, a novel two-component injection molding process has been developed for combining thermoplastics with thermoset rubbers. This process is of interest for example when thermoplastic parts include seals which are usually produced out of thermoset rubber. The present study evaluates the influence of different process parameters on the bond strength by means of a half factorial experimental design. The considered process parameters are the mold temperature at the interface, the injection temperature, the injection speed, the holding pressure, and the initial roughness of the thermoplastic part at the later interface. The study indicates a large influence of the mold temperature at the interface. Furthermore, the holding pressure only affects the adhesion strength when it is set too low or when the holding time is too short. The other process parameters have no significant effect on the adhesion strength. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46495.
机译:最近,已经开发了一种新型的双组分注塑工艺,用于将热塑性塑料与热固性橡胶相结合。 例如,当热塑性部件包括通常由热固性橡胶产生的密封件包括密封件时,该过程非常感兴趣。 本研究通过半因子实验设计评估了不同工艺参数对粘合强度的影响。 所考虑的过程参数是界面处的模具温度,喷射温度,喷射速度,保持压力,以及在后续界面处的热塑性部分的初始粗糙度。 该研究表明模具温度在界面处的巨大影响。 此外,保持压力仅在设定得太低或者当保持时间太短时影响粘合强度。 其他工艺参数对粘合强度没有显着影响。 (c)2018 Wiley期刊,Inc.J.Phill。 聚合物。 SCI。 2018,135,46495。

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