共查询到18条相似文献,搜索用时 78 毫秒
1.
改性聚苯醚的发展及现状 总被引:1,自引:0,他引:1
马建民 《现代塑料加工应用》2001,13(4):62-64
介绍了改性聚苯醚(PPE)的发展历史及PPE/PS、PPE/PA、PPE/SB(SB为苯乙烯系弹性体)、PPE/饱和弹性体合金的性能及应用,阐述了其他合金的情况。最后还介绍了改性聚苯醚的开发方向、技术动态和发展趋势。 相似文献
2.
聚苯醚(PPO)和改性聚苯醚(MPPO)是一种耐高温的热塑性工程塑料,由于PPO树脂本身熔体流动性差,不易热塑加工,若采用高抗冲击聚苯乙烯等共混改性,而制成改性聚苯醚,不但能保持PPO树脂优良的综合性能,同时能有效改善PPO树脂的加工性能,且成本大幅度降低。目前聚苯醚及改性聚苯醚成为世界上开发最成功的高分子合金之一,以其优良的性能和众多品种,发展成为当今世界五大工程塑料之一。 相似文献
3.
应用^13C核磁共振分析技术,参照Sadtler标准^13C核磁共振谱图,对国外公司的五种改性聚苯醚样品进行了剖析。结果表明,有两种改性聚苯醚样品系由聚苯醚、聚苯乙烯和磷酸三苯酯组成,该类材料具有优良的阻燃性能;有两种系由聚苯醚、聚苯乙烯和聚顺丁二烯共混而成,具有较强的冲击性能;有一种系由聚苯醚、聚苯乙烯和聚乙烯构成,具有突出的润滑性能和耐磨性能。 相似文献
4.
改性PPO生产及应用 总被引:2,自引:0,他引:2
本文介绍国外改性聚苯醚的发展、应用、生产能力、消费或需求概况及其改性方法。叙述美国通用电气公司的改性PP0连续溶液聚合制造工艺和最近在工艺上的主要改进。同时详细介绍了PPO的改性及改性PPO(Noryl)树脂的性能、系列、牌号、用途和价格。 相似文献
5.
6.
7.
8.
9.
10.
11.
12.
The effect of mixing time is very important to plasticization and/or occurrence of chemical reaction between polyamide 6/poly(propylene oxide), polyamide 6/polycarbonate, and polyamide 6/polycarbonate/poly(propylene oxide) blends. The systems were investigated through solid-state carbon-13 cross-polarization magic angle spinning with variable contact time in the NMR experiment. In the systems, polycarbonate can prevent the antiplasticization effect already observed in the polyamide 6/poly(propylene oxide) blend. Therefore, it was verified that the addition of polycarbonate in the polyamide 6/poly(propylene oxide) system causes a hardening of the blend. This fact can be attributed to the restriction of the mobility of the NH group, probably influenced by the type of interaction that occurs in the polyamide 6/polycarbonate/poly(propylene oxide), due to the effect of poly(propylene oxide), which can be act as an interfacial agent promoting a better interaction between polyamide 6 and polycarbonate. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 129–133, 1998 相似文献
13.
Relationship between structure and properties in high‐performance PA6/SEBS‐g‐MA/(PPO/PS) blends: The role of PPO and PS 下载免费PDF全文
This work aimed at studying the role of poly(phenylene oxide) (PPO) and polystyrene (PS) in toughening polyamide‐6 (PA6)/styrene‐ethylene‐butadiene‐styrene block copolymer grafted with maleic anhydride (SEBS‐g‐MA) blends. The effects of weight ratio and content of PPO/PS on the morphology and mechanical behaviors of PA6/SEBS‐g‐MA/(PPO/PS) blends were studied by scanning electron microscope and mechanical tests. Driving by the interfacial tension and the spreading coefficient, the “core–shell” particles formed by PPO/PS (core) and SEBS‐g‐MA (shell) played the key role in toughening the PA6 blends. As PS improved the distribution of the “core–shell” particles due to its low viscosity, and PPO guaranteed the entanglement density of the PPO/PS phase, the 3/1 weight ratio of PPO/PS supplied the blends optimal mechanical properties. Within certain range, the increased content of PPO/PS could supply more efficient toughening particles and bring better mechanical properties. Thus, by adjusting the weight ratio and content of PPO and PS, the PA6/SEBS‐g‐MA/(PPO/PS) blends with excellent impact strength, high tensile strength, and good heat deflection temperature were obtained. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134, 45281. 相似文献
14.
15.
PPO与PA,PP是不相容的,制造PPO PA及PPO PP合金需要提高合金中两组分的相容性。本文叙述改善相容性的原理和途径、两种合金的特点及其重要性能。 相似文献
16.
SEBS—g—MAH对PPO/PA66相容性影响的研究 总被引:4,自引:0,他引:4
研究了SEBS-g-MAH对PPO/PA66相容性的影响。结果表明SEBS-g-MAH是PPO/PA66共混物良好的反应型增容剂。对PPO/PA66=75/25的共混物,SEBS-g-MAH的加入对合金的拉伸强度、弯曲强度、Izod缺口冲击强度均有提高,但刚性和耐热性略有下降,共混体系中PA66的玻璃化转变温度升高,PPO的玻璃化转变温度下降。用量一般控制在2.5-5.0PHR之间为宜。对于PPO/PA66=25/75的共混物,SEBS-g-MAH同样也起增容作用,在不太影响力学性能的条件下,明显改善了PPO/PA66合金的冲击强度,但以用量为5PHR为宜。 相似文献