Paper Information

Journal:   JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)   SUMMER 2010 , Volume 4 , Number 14; Page(s) 53 To 60.
 
Paper: 

EFFECT OF AMYLOSE/AMYLOPECTIN RATIO ON PHYSICO-MECHANICAL PROPERTIES OF RUBBER COMPOUNDS FILLED BY STARCH

 
 
Author(s):  TAGHVAEI GANJALI S.*, MOTIEI F., SHAKERI I., ABBASIAN ALI
 
* IRAN RUBBER INDUSTRIES RESEARCH INSTITUTE, TEHRAN, IRAN
 
Abstract: 

Much research is currently focused on the use of starch as an industrial raw material, which can reduce dependence on non-renewable resources. Pure starches of plants includes 20 -30% of amylose, this value might become to 80% in some starches scarcely, 70-90% amylopectin, approximately 1% fat, protein and minerals. Starches from various sources contain different amounts of amylose and amylopectin, which influence physicochemical properties such as gelatinization, water absorption and paste viscosity. Therefore, amylose/amylopectin (Am/Ap) ratio in starch would effect on physico-mechanical properties of the material which produced from it. The determination of Am/Ap ratio in several samples of starch by a simple modified method was described in this paper and the samples with different Am/Ap ratio were applied as filler in rubber compounds. The physico-mechanical properties of obtaind cure rubbers were investigated. The results showed that the physico-mechanical properties of Natural rubber (NR) compounds filled by various starches are mainly correlated with Am/Ap ratio in the starch samples.

 
Keyword(s): AMYLOSE, AMYLOPECTIN, STARCH, NR, FILLER, PROPERTIES
 
References: 
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