Effect of silane coupling agent on the mechanical properties of flyash-filled chloroprene rubber

Alkadasi N.A.N., . and Sarwade B.D., . and Hundiwale D.G., . and Kapadi U.R., . Effect of silane coupling agent on the mechanical properties of flyash-filled chloroprene rubber. pp. 169-179. ISSN 1511-1768

Attempts have been made in the utilisation of fly ash as a filler for elastomers as it is a wasteproduct from thermal power stations generated in huge quantities and has disposal problems. Ithas been used as a filler for rubbers and plastics to a very small extent although flyash does notcontribute at all in enhancing mechanical properties of composites. The purpose of this study was to obtain better utilisation of flyash as a filler by treating it with silane coupling agent Si-69 i.e.Bis (3-triethoxysilylpropyl) tetrasulphide. Composites of chloroprene rubber containing treated and untreated flyash were made with varying proportions. A two-roll mill was used for dispersing the filler in the rubber and compression moulding was used to cure the compounded material in sheet form. Tensile properties were measured on a computerised Universal Testing Machine using the ASTM procedure. Comparison of properties of composites filled with treated and untreated flyash established that the silane treatment of flyash imparted better reinforcing properties. Tensile strength was improved by ten times whilst modulus at 400 and Youngs modulus were improved by 7.5 and 9 times respectively at a volume fraction of about 0.5.

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Abstract

Attempts have been made in the utilisation of fly ash as a filler for elastomers as it is a wasteproduct from thermal power stations generated in huge quantities and has disposal problems. Ithas been used as a filler for rubbers and plastics to a very small extent although flyash does notcontribute at all in enhancing mechanical properties of composites. The purpose of this study was to obtain better utilisation of flyash as a filler by treating it with silane coupling agent Si-69 i.e.Bis (3-triethoxysilylpropyl) tetrasulphide. Composites of chloroprene rubber containing treated and untreated flyash were made with varying proportions. A two-roll mill was used for dispersing the filler in the rubber and compression moulding was used to cure the compounded material in sheet form. Tensile properties were measured on a computerised Universal Testing Machine using the ASTM procedure. Comparison of properties of composites filled with treated and untreated flyash established that the silane treatment of flyash imparted better reinforcing properties. Tensile strength was improved by ten times whilst modulus at 400 and Youngs modulus were improved by 7.5 and 9 times respectively at a volume fraction of about 0.5.

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Item Type:	Article
AGROVOC Term:	Mechanical properties
AGROVOC Term:	Rubber
AGROVOC Term:	Elastomers
AGROVOC Term:	Waste management
AGROVOC Term:	Plastics
AGROVOC Term:	Polymers
AGROVOC Term:	Tensile strength
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23134

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