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本文研究了丙烯酸酯类PVC加工助剂ACR的特性黏度、组成对PVC共混物加工性能的影响。结果表明,随着甲基丙烯酸甲酯用量的下降和丙烯酸丁酯用量的提高,其塑化速度增大,但熔体强度降低,在组成相同的情况下,特性黏度越大,塑化越慢,熔体强度越大;丙烯酸酯类加工助剂ACR对PVC制品的拉伸强度和维卡软化点无明显影响,高黏度的加工助剂有提高PVC制品拉伸强度和维卡软化点的趋势。 相似文献
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本文研究了丙烯酸酯类PVC加工助剂ACR的特性黏度、组成对PVC共混物加工性能的影响。结果表明,随着甲基丙烯酸甲酯用量的下降和丙烯酸丁酯用量的提高,其塑化速度增大,但熔体强度降低,在组成相同的情况下,特性黏度越大,塑化越慢,熔体强度越大;丙烯酸酯类加工助剂ACR对PVC制品的拉伸强度和维卡软化点无明显影响,高黏度的加工助剂有提高PVC制品拉伸强度和维卡软化点的趋势。 相似文献
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详细研究了丙烯酸酯类PVC加工助剂——ACR的特性黏度、组成对PVC共混物加工性能的影响。结果表明,随着甲基丙烯酸甲酯用量的下降和丙烯酸丁酯用量的提高,其塑化速度增大,但熔体强度降低,在组成相同的情况下,特性黏度越大,塑化越慢,熔体强度越大;丙烯酸酯类加工助剂对PVC制品的拉伸强度和维卡软化点无明显影响,高黏度的加工助剂有提高PVC制品拉伸强度和维卡软化点的趋势。 相似文献
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ACR对PVC加工性能的影响 总被引:1,自引:0,他引:1
详细研究了丙烯酸酯类PVC加工助剂———ACR的特性黏度、组成对PVC共混物加工性能的影响。结果表明,随着甲基丙烯酸甲酯用量的下降和丙烯酸丁酯用量的提高,其塑化速度增大,但熔体强度降低,在组成相同的情况下,特性黏度越大,塑化越慢,熔体强度越大;丙烯酸酯类加工助剂对PVC制品的拉伸强度和维卡软化点无明显影响,高黏度的加工助剂有提高PVC制品拉伸强度和维卡软化点的趋势。 相似文献
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《合成材料老化与应用》2007,36(2):53-53
据:“Plastics Technology”,2006—11报道,美国纽约州Woodside的Axel塑料研究实验室开发出新的PVC鞋加工助剂和脱模剂Moldwiz INT-66PV,现场实际试验报告表明,这种新助剂改善PVC鞋生产时配混料熔体流动性,缩短会引起PVC降解的高温(加工)过程。 相似文献
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Effect of core–shell acrylate rubber particles on the thermomechanical and physical properties of biocomposites from polylactic acid and olive solid waste 下载免费PDF全文
Marwa Khemakhem Khalid Lamnawar Abderrahim Maazouz Mohamed Jaziri 《Polymer Engineering and Science》2018,58(6):894-902
Biocomposites from polylactic acid (PLA) and olive solid waste (OSW) were melt‐blended with core–shell acrylate rubber particles (ACR) in order to enhance the thermal stability upon melt processing and the mechanical performances of these biocomposites, thereby expanding their area of application. Dynamic mechanical analysis indicated that the ACR particles imparted more flexibility to the PLA/OSW biocomposites and thermal analysis showed that the incorporation of ACR significantly restrained the ability of the PLA chains to crystallize. The values of complex viscosity and storage modulus were significantly increased with the introduction of ACR. These results could be assigned to the entanglements between the PLA chains and those of the ACR shell, giving rise to a physical network that limited the segmental mobility of PLA and induced a high melt elasticity. Mechanical tests revealed that the elongation at break and the impact strength of the biocomposites were considerably improved. Moreover, morphological observations showed a clear adhesion enhancement between the PLA matrix and the OSW fillers in the presence of the ACR additive. POLYM. ENG. SCI., 58:894–902, 2018. © 2017 Society of Plastics Engineers 相似文献
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张友新 《现代塑料加工应用》2011,23(3)
介绍了活化盐泥(SM)在聚氯乙烯/丙烯酸酯类加工助剂(PVC/ACR)复合材料中的稳定机理和SM经活化处理后在PVC配方体系中的加工应用情况.结果表明,SM经活化处理后填充在PVC/ACR复合材料中,使物料的加工稳定性得到改善,产品的表面光洁度和力学性能得到提高. 相似文献
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Liting Yang Guodong Liu Donghai Sun Weina Wang Jungang Gao Liucheng Zhang Riguang Jin 《乙烯基与添加剂工艺杂志》2002,8(2):151-158
Three kinds of terpolymers containing N-phenylmaleimide (PhMI) were synthesized by emulsion polymerization. The terpolymers were used as heat-resistant modifiers, and acrylic-core/shell (ACR) was used as an impact modifier in blends with PVC. The mechanical properties and rheological behavior of the blended systems were determined. The results showed that the mechanical properties of the blends improved with increasing terpolymer content and that the apparent melt viscosity of the blends decreased with increasing terpolymer content. When 8 phr of ACR was added to the blended system, the mechanical properties and the apparent melt viscosity were greatly improved. 相似文献
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简述了目前国内聚氯乙烯用ACR加工助剂的质量现状,介绍了目前市场上一些不符合质量标准的ACR产品中几种掺混物(无机物、PVC、回收PMMA磨粉料、ACR合成时采用裂解PMMA等)的检测方法。 相似文献
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聚氯乙烯共混改性的研究 总被引:12,自引:0,他引:12
研究了丙烯酸酯类抗冲改性剂(ACR)对聚氯乙烯(PVC)加工性能和力学性能的影响。结果表明,PVC/ACR配比为100/6-100/8时,共混体系的冲击强度明显提高,而且塑化行为改善,最大和最小扭矩都较高,由扫描电镜可观察到,由于ACR颗粒与PVC基体之间有较大的模量差异,致使ACR成为应力集中点,诱发银纹和剪切带,吸收冲击能量,提高了PVC的韧性。 相似文献
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MC100新型聚氯乙烯加工助剂改善聚氯乙烯加工性能和力学性能的研究 总被引:3,自引:1,他引:3
研究了MC100加工助剂对聚氯乙烯加工流变行为、力学性能和耐化学品性能的影响。研究结果表明,在聚氯乙烯中加入少量MC100加工助剂可明显提高聚氯乙烯的加工流变行为,促进聚氯乙烯的塑化,降低其粘度,提高了聚氯乙烯的力学强度,工业应用结果表明,MC100加工助剂完全能替代ACR加工助剂用于聚氯乙烯化学建材(管材、管件、型材)加工中,提高聚氯乙烯化学建材的力学性能。 相似文献