THE EFFECTS OF A COMPATIBILIZER AND A SILANE COUPLING AGENT ON THE MECHANICAL PROPERTIES OF WHITE RICE HUSK ASH FILLED POLYPROPYLENE/NATURAL RUBBER BLEND

2001 ◽  
Vol 40 (4) ◽  
pp. 463-478 ◽  
Author(s):  
H. Ismail ◽  
L. Mega
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Rice Husk ◽  
Coupling Agent ◽  
Silane Coupling Agent ◽  
Rice Husk Ash ◽  
White Rice ◽  
Rubber Blend ◽  
Silane Coupling

scholarly journals Green Natural Rubber Composites Reinforced with Black/White Rice Husk Ashes: Effects of Reinforcing Agent on Film’s Mechanical and Dielectric Properties

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 882
Author(s):  
Praewpakun Sintharm ◽  
Muenduen Phisalaphong
Keyword(s):  
Mechanical Properties ◽  
Dielectric Properties ◽  
Natural Rubber ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Composite Films ◽  
Dry Weight ◽  
Semiconducting Polymer ◽  
White Rice ◽  
Dispersing Agent

Green natural rubber (NR) composites reinforced with black rice husk ash (BRHA)/white rice husk ash (WRHA), using alginate as a thickening and dispersing agent and crosslinking by CaCl2, was developed to improve mechanical, chemical and dielectric properties of NR-based films by using a latex aqueous microdispersion process. A maximum of 100 per hundred rubbers (phr) of rice husk ashes (RHAs) could be integrated in NR matrix without phase separation. Mechanical properties of the composite films were considerably enhanced, compared to the neat NR film. The composite films reinforced with WRHA demonstrated relatively better mechanical properties than those reinforced with BRHA, whereas the composites filled with BRHA demonstrated higher elongation at break. The crosslinking by CaCl2 improved the film tensile strength but lowered the film elasticity. The reinforcement strongly improved chemical resistance of the composite films in toluene. The films are biodegradable in soil, with weight loss of 7.6–18.3% of the initial dry weight after 3 months. Dielectric constant and dielectric loss factors of the composite films were enhanced with RHAs loading. According to the obtained properties, the composites offer potential for further development as stretchable conductive substrate or semiconducting polymer films for electronic applications.

Mechanical Properties and Morphologies of Rice Husk Silica (RHS)/ Poly (butylene adipate-co-terephthalate) (PBAT) Composites: Effect of Silane Coupling Agent

2010 ◽  
Vol 123-125 ◽  
pp. 141-144
Author(s):  
Jirapa Phosee ◽  
Jatuporn Wittayakun ◽  
Nitinat Suppakarn
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Coupling Agent ◽  
Interfacial Adhesion ◽  
Silane Coupling Agent ◽  
Ftir Spectra ◽  
Rice Husk Silica ◽  
Silane Coupling ◽  
Reinforcing Filler

In this work, rice husk silica (RHS), obtained from rice husk waste, was used as a reinforcing filler for preparing PBAT composites. The RHS surface was modified using a silane coupling agent, i.e. γ-methacryloxypropyltrimethoxysilane (MPS), in order to facilitate interfacial adhesion between PBAT matrix and RHS filler. The contents of MPS were varied between 0.5 - 5.0 % based on weight of RHS. FTIR spectra indicated the appearance of MPS molecules on RHS surface. Untreated RHS and MPS treated RHS were used to produced RHS/PBAT composites containing 30%wt RHS. The results showed that mechanical properties of the PBAT composites can be enhanced by treating RHS surface with 2 %wt MPS.

Fabrication of Rice Husk Ash/Natural Rubber Composite

2011 ◽  
Vol 393-395 ◽  
pp. 92-96 ◽  
Author(s):  
Zong Qiang Zeng ◽  
He Ping Yu ◽  
Hong Chao Liu ◽  
Shuang Quan Liao ◽  
Zheng Peng
Keyword(s):  
Mechanical Properties ◽  
Rare Earth ◽  
Natural Rubber ◽  
Rice Husk ◽  
Coupling Agent ◽  
Rice Husk Ash ◽  
Testing Machine ◽  
Dynamic Mechanical Properties ◽  
Main Trend ◽  
Dynamic Mechanical

The preparation of rubber-based composite from agricultural by-product is the main trend to upgrade the performance of rubber and reduce the cost. In this work, the rice husk ash/natural rubber (RHA/NR) composites were prepared by latex mixing process using the RHA modified with rare earth coupling agent. The mechanical properties, dynamic mechanical properties, thermal stability and morphology of RHA/NR composites were analyzed by universal testing machine, dynamic mechanical analyzer, thermo gravimetric analyzer and scanning electron microscope. The results indicate that previous modification of RHA with rare earth coupling agent can improve the dispersion of RHA in NR matrix significantly and increase the interaction between RHA particles and NR matrix and thus upgrade the mechanical properties and anti-oxidative behaviors of RHA/NR composite. The RHA/NR composite of highest mechanical properties and anti-oxidative behaviors can be obtained with a RHA loading of 4 per hundred rubber.

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