Surface Engineering of Cellulose Nanofiber by Adsorption of Diblock Copolymer Dispersant for Green Nanocomposite Materials

被引：57

作者：

Sakakibara, Keita ^{[1
]}

Yano, Hiroyuki ^{[2
]}

Tsujii, Yoshinobu ^{[1
]}

机构：

[1] Kyoto Univ, ICR, Kyoto 6110011, Japan

[2] Kyoto Univ, RISH, Kyoto 6110011, Japan

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 37期

关键词：

adsorption polymer dispersant; cellulose nanofiber; nanocomposite; diblock copolymer; poly(2-hydroxyethyl methacrylate); poly(lauryl methacrylate); TRANSFER RADICAL POLYMERIZATION; HIGH-DENSITY POLYETHYLENE; BLOCK-COPOLYMERS; ISOTACTIC POLYPROPYLENE; CRYSTALLINE REGIONS; CATIONIC POLYMER; NATIVE CELLULOSE; ELASTIC-MODULUS; DESORPTION; WHISKERS;

D O I：

10.1021/acsami.6b07769

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An effective approach for the dispersion of hydrophilic cellulose nanofiber :(CNF) in hydrophobic high-density polyethylene (HDPE) is presented using, adsorption of a diblock copolymer dispersant. The dispersant consists of both resin compatible poly(lauryl methacrylate) (PLMA) and cellulose interactive poly(2-hydroxyethyl methacrylate) blocks. The PLMA-adsorbed CNFs are characterized by FT-IR and contact angle measurement, revealing successful hydrophobization. X=ray CT imaging shows there are apparently less CNF aggregates in the nanocomposites if adding amount of the dispersant was enough. The good dispersion results in- a high mechanical reinforcement, corresponding to 140% higher Young'S :modulus and 84% higher tensile- strength than the neat HDPE. This approach is broadly applicable and.allows for easy manufacturing process for strong and lightweight CNF-reinforced nanocomposite materials.

引用

页码：24893 / 24900

页数：8

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