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介绍ABS型材挤出成型技术。阐述ABS的成型加工性能和热力学三态转化的状况:介绍ABS型材挤出模具的结构和设计要点及各项参数的设置,讨论ABS型材挤出成型时从粒料干燥到型材冷却定型的各项工艺参数及控制要点,介绍ABS挤出型材的主要性能指标。 相似文献
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介绍冰箱用ABS板材的挤出成型工艺及控制,阐述了ABS的特性和热力学三态转化的状况;讨论了挤出ABS板材时从粒料干燥到板材冷却定型的各种工艺参数,影响因素及其控制要点;归纳总结了挤出成型ABS板材的各种质量缺陷,产生原因及其相应的对策措施。 相似文献
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<正>美国Bergen公司推出两种新型致热型化学发泡剂(CFA),据报道,主要应用于ABS和PVC管材及型材挤出方面的加工和性能优势明显。据说这两种材料和市场上其它类型的化学发泡剂相比,有更低的用量和更低的加工温度,同时还能加工出更轻的挤出型材。颗粒状发泡剂XO-459建议用于ABS管材和型材。据报道与行业标准相比,它可将挤出线速度提高2%~4%。母粒形式 相似文献
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挤出用PC/ABS合金 总被引:1,自引:0,他引:1
AndreasSeidel 《塑料挤出》2002,(6):9-13
不含卤素的、阻燃的、非牛顿体PC/ABS合金适合于型材、板材的挤出成型,以及适用于中空制品吹塑成型。此类塑料产品可用于电气、通讯、建筑、汽车等领域。 相似文献
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介绍了平行双螺杆挤出的特点,挤出成型原理,平行双螺杆的结构和设计,概述了平行双螺杆的设计要点及其重要参数。 相似文献
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牛秋生;刘振国;徐刚;张会轩;杨海东 《中国塑料》2011,25(5):55-59
采用湿法挤出工艺,即将乳液聚合合成的经凝聚和过滤的丙烯腈-丁二烯-苯乙烯(ABS)湿粉料与苯乙烯-丙烯腈共聚物(SAN)树脂以一定的比例投入湿法挤出机内挤出造粒,直接获得了ABS树脂。考察了ABS粉料含水量、ABS树脂中橡胶含量、抗氧剂含量、挤出机温度及螺杆转速等因素对ABS树脂力学性能的影响。结果表明,挤出温度过高明显引起物料降解,ABS树脂的冲击强度减小,拉伸强度降低;ABS粉料含水量对ABS树脂的性能没有明显影响;透射电子显微镜分析表明,橡胶粒子在SAN基体中分散均匀;湿法挤出的最佳工艺参数为,挤出温度:180 ℃,螺杆转速:200 r/min,抗氧剂含量:0.154 %(质量分数,下同)。 相似文献
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In this study acrylonitrile‐butadiene‐styrene (ABS) terpolymer was reinforced with 3‐aminopropyltrimethoxysilane (APS)‐treated short glass fibers (SGFs). The effects of SGF concentration and extrusion process conditions, such as the screw speed and barrel temperature profile, on the mechanical properties of the composites were examined. Increasing the SGF concentration in the ABS matrix from 10 wt% to 30 wt% resulted in improved tensile strength, tensile modulus and flexural modulus, but drastically lowered the strain‐at‐break and the impact strength. The average fiber length decreased when the concentration of glass fibers increased. The increase in screw speed decreased the average fiber length, and therefore the tensile strength, tensile modulus, flexural modulus, and impact strength were affected negatively and the strain‐at‐break was affected positively. The increase in extrusion temperature decreased the fiber length degradation, and therefore the tensile strength, tensile modulus, flexural modulus, and impact strength increased. At higher temperatures the ABS matrix degraded and the mechanical strength of the composites decreased. To obtain a strong interaction at the interface, polyamide‐6 (PA6) at varying concentrations was introduced into the ABS/30 wt% SGF composite. The incorporation and increasing amount of PA6 in the composites broadened the fiber length distribution (FLD) owing to the low melt viscosity of PA6. Tensile strength, tensile modulus, flexural modulus, and impact strength values increased with an increase in the PA6 content of the ABS/PA6/SGF systems due to the improved adhesion at the interface, which was confirmed by the ratio of tensile strength to flexural strength as an adhesion parameter. These results were also supported by scanning electron micrographs of the ABS/PA6/SGF composites, which exhibited an improved adhesion between the SGFs and the ABS/PA6 matrix. POLYM. COMPOS. 26:745–755, 2005. © 2005 Society of Plastics Engineers 相似文献
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采用湿法挤出工艺,即将乳液聚合合成的丙烯腈-丁二烯-苯乙烯(ABS)接枝共聚物经凝聚和过滤后得到的ABS接枝共聚物湿粉料与苯乙烯-丙烯腈共聚物(SAN)以一定的比例投入湿法挤出机内挤出造粒,直接获得了ABS树脂。考察了ABS接枝共聚物湿粉料含水量、ABS树脂中橡胶含量、抗氧剂含量、挤出机温度及螺杆转速等因素对ABS树脂力学性能的影响。结果表明,挤出温度过高明显引起物料降解,ABS树脂的冲击强度减小,拉伸强度降低;ABS接枝共聚物湿粉料含水量对ABS树脂的性能没有明显影响;透射电子显微镜分析表明,橡胶粒子在SAN基体中分散均匀;湿法挤出的最佳工艺参数为,挤出温度:180℃,螺杆转速:200 r/min,抗氧剂含量:0.154%(质量分数,下同)。 相似文献
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尼龙6共混改性研究进展 总被引:7,自引:0,他引:7
系统介绍了国内外用聚乙烯、聚丙烯、PVDF、PAR、PET、PVOH、ABS、PC、PPO、SAN、弹性体、TLCP等改性尼龙 6的系列方法、研究成果及其性能 ,并提出了反应挤出共混改性和无机纳米材料改性尼龙 6的设想 相似文献