制备用于增韧聚（苯乙烯-共丙烯腈）树脂的聚丙烯酸丁酯接枝聚（苯乙烯-共丙烯腈）颗粒

IF 3.2 4区工程技术 Q2 ENGINEERING, CHEMICAL

Polymer Engineering and Science Pub Date : 2024-07-02 DOI:10.1002/pen.26848

Mengen Liu, Qianyi Tang, Baijun Liu, Mingyao Zhang

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引用次数: 0

摘要

本文采用乳液接枝聚合法制备了橡胶含量为 60% 的聚丙烯酸丁酯接枝聚（苯乙烯-共丙烯腈）（PBA-g-SAN）抗冲改性剂，随后将其与苯乙烯-丙烯腈共聚物（SAN）树脂混合，制成丙烯酸酯苯乙烯-丙烯腈（ASA）树脂。研究了 PBA-g-SAN 共聚物中丙烯腈含量和 PBA 大小对 ASA 树脂机械性能的影响。实验结果表明，ASA 树脂的最高冲击强度达到 27.75 kJ/m2。搭接剪切粘附试验表明，AN 含量为 21% 的 PBA-g-SAN 共聚物与 SAN 树脂具有良好的界面粘附性。以 100 纳米和 400 纳米聚丙烯酸丁酯为芯材的 PBA-g-SAN 颗粒对 SAN 树脂具有协同增韧效果。当 100 nm 和 400 nm 聚丙烯酸丁酯颗粒的质量比达到 8/2 时，制备出了具有优异抗冲击性能的高黑度 ASA 树脂。研究了协同增韧机理。构建了高黑度ASA树脂。

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Preparation of poly(butyl acrylate)‐grafted‐poly(styrene‐co‐acrylonitrile) particles for toughening poly(styrene‐co‐acrylonitrile) resin

Herein, the impact modifier of poly(butyl acrylate) grafted poly(styrene‐co‐acrylonitrile) (PBA‐g‐SAN) with 60% rubber content was prepared by emulsion grafting polymerization and subsequently blended with styrene–acrylonitrile copolymer (SAN) resin to construct acrylate styrene acrylonitrile (ASA) resins. The effects of acrylonitrile content of PBA‐g‐SAN copolymer and PBA size on the ASA resins' mechanical properties were investigated. Experimental results revealed that ASA resin's highest impact strength reached 27.75 kJ/m2. The lap shear adhesion test suggested that the PBA‐g‐SAN copolymer with 21% AN content exhibited excellent interfacial adhesion with SAN resin. The PBA‐g‐SAN particles with 100 and 400 nm poly (butyl acrylate) as core rubbers demonstrated a synergistic toughening effect for SAN resin. The high blackness ASA resin with excellent impact resistance was obtained when the 100 nm and the 400 nm poly (butyl acrylate) particle mass ratio reached 8/2.Highlights

The ASA resin with 27.75KJ/m2 impact strength was prepared.

The synergistic toughening mechanisms were investigated.

The high blackness ASA resin was constructed.

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来源期刊

Polymer Engineering and Science 工程技术-高分子科学

CiteScore

5.40

自引率

18.80%

发文量

329

审稿时长

3.7 months

期刊介绍： For more than 30 years, Polymer Engineering & Science has been one of the most highly regarded journals in the field, serving as a forum for authors of treatises on the cutting edge of polymer science and technology. The importance of PE&S is underscored by the frequent rate at which its articles are cited, especially by other publications - literally thousand of times a year. Engineers, researchers, technicians, and academicians worldwide are looking to PE&S for the valuable information they need. There are special issues compiled by distinguished guest editors. These contain proceedings of symposia on such diverse topics as polyblends, mechanics of plastics and polymer welding.