High-performance shear thickening of polystyrene particles with poly(HEMA)

被引：2
|
作者：
Son, Hoon Soo [1 ]
Kim, Kyoung Ho [1 ]
Kim, Jun Hyeong [2 ]
Yoon, Kwan Han [2 ]
Lee, Young Sil [3 ]
Paik, Hyun-jong [1 ]
机构：
[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Busan 46241, South Korea
[2] Kumoh Natl Inst Technol, Dept Chem Engn, Gumi 39177, South Korea
[3] Kumoh Natl Inst Technol, Ind Acad Cooperat, 61 Daehak Ro, Gumi 39177, Gyeongbuk, South Korea
来源：
COLLOID AND POLYMER SCIENCE | 2018年 / 296卷 / 09期
关键词：
Shear thickening; Surfactant-free emulsion polymerization; Functionalized polymer particle; Colloidal suspension; DILATANT VISCOSITY BEHAVIOR; CONCENTRATED SUSPENSIONS; RHEOLOGICAL BEHAVIOR; DYNAMIC PROPERTIES;
D O I：
10.1007/s00396-018-4381-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Spherical polystyrene particles with poly(2-hydroxyethyl methacrylate) shells (PSt-PHEMA particles) were developed as a shear thickening fluid additive. The influence of PSt-PHEMA particle structure on the rheological properties of the shear thickening fluid was investigated. To determine the monomer ratio yielding the most effective shear thickening behavior, PSt-PHEMA particles with different ratios of styrene(St) and 2-hydroxyethyl methacrylate(HEMA) were synthesized using surfactant-free emulsion polymerization followed by dispersion into ethylene glycol to form a shear thickening fluid. The colloidal suspension containing PSt-PHEMA particles made with 4/1 ([St]/[HEMA]) exhibited the strongest shear thickening effect, with a maximum viscosity of 2800 Pa s. Our results suggest that hydroxyl groups and charged groups on the particle surface can strongly influence the rheological behavior of a particle-based shear thickening fluid.
引用
收藏
页码：1591 / 1598
页数：8
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