共查询到19条相似文献,搜索用时 140 毫秒
1.
2.
3.
4.
5.
周双齐 《现代塑料加工应用》1990,(3):21-24
本文是以70℃绝缘级电缆料为基础,通过合理调整配方中的增塑剂用量和取代剂用量,制得物理机械性能满足70℃绝缘级标准的电缆料。试验结果表明:在配方中加入15份取代剂取代PVC树脂,制得的电缆料完全符合IEC227(1979)PVC/C的要求,产品的二次加工性能良好,同时利润也得到相应提高。 相似文献
6.
叙述了RoHS和REACH等环保规定对PVC电缆料提出的新要求及国内PVC电缆料的研究近况,指出了环保型PVC电缆料的研究方向。 相似文献
7.
8.
简述了PVC电缆料的特性,提出了PVC电缆料的出油问题,分析了PVC电缆料的出油原因,探讨了多项检验对策,开发了耐浓硫酸试验方法,能在PVC电缆料进厂时,就检验出PVC电缆料的出油风险大小。 相似文献
9.
从分子结构、分子量及分布、颗粒形态、加工助剂等方面分析了PVC树脂质量对加工制品质量的影响。提出了管材、异型材、注射制品、片材、电缆料、等常见PVC制品的质量问题,并提出解决措施。 相似文献
10.
11.
Joseph M. Georgiana 《乙烯基与添加剂工艺杂志》1980,2(3):169-173
Mass (bulk) polymerized PVC is used extensively in rigid extrusion applications on a worldwide scale. However, relatively small quantities are used in flexible products such as wire and cable. This is surprising considering the uniformity of the resin, its highly accessible porosity, and its consistency batch-to-batch. There was concern that mass polymerized PVC would not meet existing specifications. A study was undertaken to determine if mass resin could be used in various wire and cable applications. The results show mass resin compounds may have slightly lower electrical properties but still within specification. Selected physical and aging properties are also satisfactory. Independent testing has confirmed our results. Based on this study, major wire and cable producers are now routinely using mass resin with excellent results. 相似文献
12.
13.
增塑剂对PVC电缆料电性能的影响 总被引:1,自引:0,他引:1
介绍了DBP、TPP、DOP、TOTM、TCP、DIDP及M-50等增塑剂在不同用量时对PVC电缆科电性能的影响:随着增剂用量的增加,PVC电缆料的电性能一般呈下降趋势。实验发现TOTM和TCP两种增剂的电性能较优,其最佳用量为35-40份。 相似文献
14.
输电母线专用PVC塑料的试制 总被引:1,自引:0,他引:1
孙亚玲 《现代塑料加工应用》1998,10(6):7-9
以PVC树脂、耐高温增塑剂为主要原料,以PE—C为改性剂,试制出扁铜线挤出包覆的输电母线专用料,其氧指数不小于32%,各项性能符合GB 8815—88《电线电缆用软PVC塑料》中J-105和JGD-70要求,制成的输电母线其PVC塑料包覆层符合GB12706,1—91《额定电压为35kV及以下铜芯、铝芯塑料绝缘电力电缆》中PVC/A类要求。 相似文献
15.
16.
介绍了目前中国PVC产业的现状及PVC树脂价格回落的原因,并详细分析了PVC下游加工企业的情况及PVC树脂价格走势对PVC加工企业的影响。 相似文献
17.
PVC树脂是我国大宗塑料品种之一,在我国塑料工业中占有重要地位。本文对国内PVC工业生产概况以及产需现状进行了分析,并根据分析情况,对我国PVC生产今后的发展方向提出了建议。 相似文献
18.
19.
Harrey E. Sarvis 《乙烯基与添加剂工艺杂志》1993,15(3):148-152
Polyvinyl chloride—PVC—has been commercial since the mid-1930s. It is one of the most versatile of all thermoplastic resins. By the end of this year, United States consumption of PVC resin could reach 4.2 million metric tons. Some of the key markets for PVC are pipe, siding, windows, floor coverings, wire and cable insulation, and protective coatings, to name just a few. As you would expect, color plays an integral part in many of these applications. The purpose of this paper is to review the major colorant types and families that are used to color PVC, with special emphasis placed on end-use applications. Within the context of coloring PVC, the continued use or replacement of lead and cadmium bearing colorants is discussed. 相似文献