共查询到18条相似文献,搜索用时 109 毫秒
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磁性橡胶发展至今,其磁粉载体已不再局限于天然橡胶或合成橡胶,以热塑性树脂为载体的情况也大量出现,所以往往容易与注塑成形的磁性塑料相混淆。在欧美国家中把磁性橡胶和磁性塑料统称为“粘合磁体”。(?)而本文是把磁性橡胶体为“柔性粘合磁体”来阅谈。 相似文献
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挤出成型各向同性磁性塑料条 总被引:1,自引:0,他引:1
介绍以氯化聚乙烯、磁粉等为原料,采用挤出工艺成型电冰箱用的各向同性磁性塑料条。探讨了磁粉填充量、成型工艺条件、脉冲放电充磁等因素对磁性塑料条磁性能、力学性能的影响。 相似文献
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纳米功能塑料及其在家电中的应用 总被引:1,自引:1,他引:0
石劲松 《现代塑料加工应用》2001,13(3):63-64
介绍了新型纳米功能塑料包括抗菌塑料、增强塑料、磁性塑料等的种类及特性;莘简要探讨了其在家用电器中的应用。 相似文献
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注射成型钕铁硼塑料粘结磁体的研究 总被引:2,自引:0,他引:2
对快淬钕铁硼(NdFeB)磁粉进行包覆,并用硅烷偶联剂KH550进行表面处理,以尼龙12作粘结剂.添加复配润滑剂及抗氧剂,在保证磁性能即高磁粉含量(91%)的条件下,很好地解决了复合体系流动性差及磁体在湿热环境下易氧化生锈的问题。并研究了注射成型NdFeB塑料粘结磁体的制备工艺、磁粉表面处理、磁粉含量、添加剂等因素对磁性能、加工性及力学性能的影响,制得了具有较好综合性能的NdFeB塑料粘结磁体,该产品在国内已获得应用。 相似文献
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钕铁硼磁性塑料及其注射成型的研究 总被引:4,自引:0,他引:4
通过对快淬钕铁硼(NdFeB)磁粉进行包覆,并用硅烷偶联剂KH550进行表面处理,以PA12做粘结剂,添加复配润滑剂及抗氧剂,在保证磁性能即高磁粉含量(91%)的条件下,很好地解决了NdFeB塑料粘结磁体流动性差及磁体在湿热环境下易氧化生锈的问题。并研究了注射成型NdFeB塑料粘结磁体的制备工艺、磁粉表面处理、磁粉含量、添加剂等因素对磁性能、加工性能、力学性能的影响。 相似文献
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介绍电子电气行业用塑料的选材原则,各类材料如电绝缘、导电、电磁波屏蔽、磁性材料的性能、应用、发展趋势,以及材料的成型加工等,并对实际选材作举例说明。 相似文献
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导电电磁屏蔽塑料研究新进展 总被引:1,自引:0,他引:1
介绍了电磁屏蔽的基本理论,重点综述了3类主要的导电塑料即:表层导电型复合塑料、填充型复合塑料和本征导电高分子材料的研究应用现状,介绍了各类导电高分子电磁屏蔽材料的特点,并对其发展趋势做了展望。 相似文献
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Identification of Polymers in Cosmetic Products II: Spectrometric Analysis of Plastics Synthetic polymers are increasingly used in cosmetics as film-forming agents, as viscosity and moisture regulators and as dispersion stabilizers. Their detection by precipitation and colour often is tedious and not unambiguous. In contrast to these methods, infrared, nuclear magnetic resonance and mass spectrometry frequently permit a rapid and detailed characterization of unknown plastics w. r. t. their composition and microstructure. The efficiency of these methods in the analysis of plastics is demonstrated and the spectra of some polymers and copolymers being essential for cosmetics are compared and discussed. 相似文献
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《Fuel》2003,82(15-17):1911-1916
Blends of three Australian coking coals and polypropylene, polystyrene, polyacrylonitrile and polyphenylene sulfide were prepared and the extent to which the blends fused on heating was monitored using proton magnetic resonance thermal analysis in order to identify interactions between them that could affect their fluidity. Different plastics had different effects. Polystyrene strongly reduced the fluidity of all of the coals, confirming previous findings. Polypropylene did not affect the fluidity of the two coking coals of lower rank. Polyphenylene sulfide reduced the fluidity of the coals at temperatures near the solidification temperature of the coals, and polyacrylonitrile appeared to increase the fluidity of the coals at temperatures near the softening temperature of the coals. The very different effects different plastics have on coal fluidity show that the interaction between plastics and coals must be carefully examined before plastics are added to coking coal blends. 相似文献