Short natural-fibre reinforced polyethylene and natural rubber composites: Effect of silane coupling agents and fibres loading

2007 ◽  
Vol 67 (7-8) ◽  
pp. 1627-1639 ◽  
Author(s):  
M ABDELMOULEH ◽  
S BOUFI ◽  
M BELGACEM ◽  
A DUFRESNE
Keyword(s):  
Natural Rubber ◽  
Natural Fibre ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Rubber Composites ◽  
Natural Rubber Composites ◽  
Silane Coupling

Comparison of Mechanical Properties and Curing Characteristics of Natural Rubber Composites with Different Coupling Agents

2013 ◽  
Vol 858 ◽  
pp. 24-31 ◽  
Author(s):  
Makara Lay ◽  
Azura A. Rashid ◽  
Nadras Othman ◽  
Yasuyuki Tezuka ◽  
Chhorda Pen
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Crosslink Density ◽  
Coupling Agents ◽  
Rubber Composites ◽  
Matrix Interaction ◽  
Curing Characteristics ◽  
Natural Rubber Composites ◽  
Silane Coupling ◽  
Colored Product

Nanosilica (NS) was recently used as a filler to improve mechanical properties, morphology behaviors of natural rubber (NR) composites and also for light colored product. NS is hard to disperse in NR composite compare to carbon black due to large number of Silanol (Si-OH) group leads to strong filler-filler interaction. Silane coupling agent was extensively used to improve reinforce efficiency of NS and also for good filler-matrix interaction by reducing Si-OH group. In this study, Bis[3-(triethoxysilyl)propyl] tetrasulfide (Si-69) and (3-aminopropy)triethoxysilane (APTES) were used as a coupling agents with various loading 1.5, 3, 4.5 phr in conventional sulphur vulcanization system. Both Si69 and APTES gave a significance of the NR compound processing. However, hardness was gradually decreased up to 4.5 phr due to plasticizing effect. Si-69 can increase crosslink density because of 4 molecular of sulphur (S) and its structure retarded the curing where APTES accelerated the cured because APTES has lower molecular weight and viscosity than Si-69.

COOPERATIVE EFFECTS OF EPOXIDE FUNCTIONAL GROUPS ON NATURAL RUBBER AND SILANE COUPLING AGENTS ON REINFORCING EFFICIENCY OF SILICA

2014 ◽  
Vol 87 (2) ◽  
pp. 291-310 ◽  
Author(s):  
W. Kaewsakul ◽  
K. Sahakaro ◽  
W. K. Dierkes ◽  
J. W. M. Noordermeer
Keyword(s):  
Natural Rubber ◽  
Functional Groups ◽  
Coupling Agent ◽  
Silica Content ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Cooperative Effects ◽  
Optimal Loading ◽  
Silane Coupling

ABSTRACT Polar functionality attached onto natural rubber has a significant impact on the reinforcing efficiency of silica. Parallel studies involving various levels of epoxidation on natural rubber (ENR) in the absence of bis-(triethoxysilylpropyl) tetrasulfide (TESPT) coupling agent, as well as a combination of ENRs with different loadings of TESPT, provide a better understanding of the various factors that influence the properties of silica-filled ENR compounds. Based on the overall properties, the best possible combination to optimize processability, to reduce filler–filler interaction, and improve vulcanization rate as well as vulcanizate properties, is to use ENR with an epoxide content in the range of 20–30 mol%, together with a small portion of TESPT, that is, 2–4 wt% relative to the silica content. This leads to a reduction of approximately 60–80% of TESPT when compared with the conventional NR compounds, where the optimal loading of TESPT was 9.0 wt% relative to the silica content.

scholarly journals Multi-layer graphene oxide synergistically modified by two coupling agents and its application in reinforced natural rubber composites

RSC Advances ◽  
2018 ◽  
Vol 8 (52) ◽  
pp. 29847-29854 ◽  
Author(s):  
Meng Jiang ◽  
Yuzhu Xiong ◽  
Bai Xue ◽  
Qingpo Zhang ◽  
Qian Wan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Natural Rubber ◽  
Coupling Agents ◽  
Rubber Composites ◽  
Layer Graphene ◽  
Natural Rubber Composites

Multi-layer graphene oxide synergistically modified by two coupling agents can effectively reinforce natural rubber composites.

Surface treatment of CaCO3 with a mixture of amino- and mercapto-functional silane coupling agents and tensile properties of the rubber composites

2018 ◽  
Vol 25 (8) ◽  
pp. 743-760
Author(s):  
Ryota Tsutsumi ◽  
Tokio Sasaki ◽  
Chisato Hashiguchi ◽  
Ryota Yamazaki ◽  
Syuji Fujii ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Tensile Properties ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Rubber Composites ◽  
Silane Coupling

Effects of silane coupling agents on the vulcanization characteristics of natural rubber

2004 ◽  
Vol 94 (4) ◽  
pp. 1511-1518 ◽  
Author(s):  
Hexiang Yan ◽  
Kang Sun ◽  
Yong Zhang ◽  
Yinxi Zhang ◽  
Yongzhong Fan
Keyword(s):  
Natural Rubber ◽  
Coupling Agents ◽  
Silane Coupling Agents ◽  
Silane Coupling
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