Effects of partial replacement of silica with surface modified nanocrystalline cellulose on properties of natural rubber nanocomposites

被引：79

作者：

Xu, S. H. ^{[1
]}

Gu, J. ^{[1
]}

Luo, Y. F. ^{[1
]}

Jia, D. M. ^{[1
]}

机构：

[1] S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Peoples R China

来源：

EXPRESS POLYMER LETTERS | 2012年 / 6卷 / 01期

基金：

中国国家自然科学基金;

关键词：

rubber; nanocrystalline cellulose; silica; reinforcement; KH550; MECHANICAL-PROPERTIES; WHISKERS; POLYPROPYLENE; NANOFIBRES; STARCH;

D O I：

10.3144/expresspolymlett.2012.3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Nanocrystalline cellulose was modified by 3-aminopropyl-triethoxysilane (KH550). The modified nanocrystalline cellulose (MNCC) was further investigated to partially replace silica in natural rubber (NR) composites via coagulation. NR/MNCC/silica and NR/nanocrystalline cellulose (NCC)/silica nanocomposites were prepared. Through the comparison of vulcanization characteristics, processing properties of compounds and mechanical properties, compression fatigue properties, dynamic mechanical performance of NR/MNCC/silica and NR/NCC/silica nanocomposites, MNCC was proved to be more efficient than NCC. MNCC could activate the vulcanization process, suppress Payne effect, increase 300% modulus, tear strength and hardness, and reduce the heat build-up and compression set. Moreover, fine MNCC dispersion and strong interfacial interaction were achieved in NR/MNCC/silica nanocomposites. The observed reinforcement effects were evaluated based on the results of apparent crosslinking density (V-r), thermo-gravimetric (TG) and scanning electron microscopic (SEM) analyses of NR/MNCC/silica in comparison with NR/NCC/silica nanocomposites.

引用

页码：14 / 25

页数：12

共 36 条

[1] Using a Silanized Silica Nanofiller to Reduce Excessive Amount of Rubber Curatives in Styrene-Butadiene Rubber [J].

Ansarifar, Ali ;

Wang, Li ;

Ellis, Robert J. ;

Haile-Meskel, Yared .

JOURNAL OF APPLIED POLYMER SCIENCE, 2011, 119 (02) :922-928

[2] Partial replacement of silica with microcrystalline cellulose in rubber composites [J].

Bai, Wen ;

Li, Kaichang .

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2009, 40 (10) :1597-1605

[3] Investigation on the effect of cellulosic nanoparticles' morphology on the properties of natural rubber based nanocomposites [J].

Bendahou, Abdelkader ;

Kaddami, Hamid ;

Dufresne, Alain .

EUROPEAN POLYMER JOURNAL, 2010, 46 (04) :609-620

[4] Gas-Phase Surface Esterification of Cellulose Microfibrils and Whiskers [J].

Berlioz, Sophie ;

Molina-Boisseau, Sonia ;

Nishiyama, Yoshiharu ;

Heux, Laurent .

BIOMACROMOLECULES, 2009, 10 (08) :2144-2151

[5] Reinforcement of natural rubber: use of in situ generated silicas and nanofibres of sepiolite [J].

Bokobza, L ;

Chauvin, JP .

POLYMER, 2005, 46 (12) :4144-4151

[6] Optimization of the isolation of nanocrystals from microcrystalline cellulose by acid hydrolysis [J].

Bondeson, D ;

Mathew, A ;

Oksman, K .

CELLULOSE, 2006, 13 (02) :171-180

[7] Single-Step Method for the Isolation and Surface Functionalization of Cellulosic Nanowhiskers [J].

Braun, Birgit ;

Dorgan, John R. .

BIOMACROMOLECULES, 2009, 10 (02) :334-341

[8] New nanocomposite materials reinforced with flax cellulose nanocrystals in waterborne polyurethane [J].

Cao, Xiaodong ;

Dong, Hua ;

Li, Chang Ming .

BIOMACROMOLECULES, 2007, 8 (03) :899-904

[9] Surface modification of silica: 1. Thermodynamic aspects and effect on elastomer reinforcement [J].

Castellano, M ;

Conzatti, L ;

Costa, G ;

Falqui, L ;

Turturro, A ;

Valenti, B ;

Negroni, F .

POLYMER, 2005, 46 (03) :695-703

[10] Fabrication and characterization of novel macroporous cellulose-alginate hydrogels [J].

Chang, Chunyu ;

Duan, Bo ;

Zhang, Lina .

POLYMER, 2009, 50 (23) :5467-5473

← 1 2 3 4 →