Improvement of Impact Resistant Property of Polyvinylchloride filled with Calcium Carbonate

It was found that the impact resistant property of polyvinylchloride (PVC) could be improved by the addition of fine powdery calcium carbonate (CC) in a sufficient dispersed state, that is, an ultrasonic wave was employed in order to disperse CC into tetrahydrofuran (THF) solvent, next the THF solut...

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Bibliographic Details
Published inSeikei kakou Vol. 11; no. 9; pp. 789 - 794
Main Authors IMANISHI, Hideaki, YAMAGUCHI, Tomohiro, UMEHARA, Kazuo
Format Journal Article
LanguageEnglish
Published The Japan Society of Polymer Processing 20.09.1999
Subjects
Calcium carbonate
Composite materials
Impact resistance
Polyvinlchloride
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Summary:It was found that the impact resistant property of polyvinylchloride (PVC) could be improved by the addition of fine powdery calcium carbonate (CC) in a sufficient dispersed state, that is, an ultrasonic wave was employed in order to disperse CC into tetrahydrofuran (THF) solvent, next the THF solution of dissolved PVC was added into this dispersed solvent. After THF was evaporated, the residual mixture was blended by a heat twin roller. Through such procedure, composite materials consisting of PVC and CC were prepared. These composite materials exhibited excellent property on impact resistance. The effect was similar to that for addition of a rubber component to PVC. It could be presumed that fine powdery CC was dispersed sufficiently into PVC matrix. It was also shown that the composite materials had increased the modulus of elasticity, slightly decreased the bending strength and decreased the melting viscosity.
ISSN:0915-4027
1883-7417
DOI:10.4325/seikeikakou.11.789