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Influence of heat treatment on mechanical property of polylactic acid fibers

Yabin Li

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Abstract

Aiming at the poor heat resistant property of polylactic acid(PLA) fiber,the influences of several heat treatment methods on the breaking strength and elongation of PLA fibers are analyzed.The results indicate that increasing the temperature,the tensile strength of PLA fibers decreases,as well as its elongation increases.When the temperature is above 140 ℃,the treatment would result in the mechanical properties of the PLA fibers significantly decline.

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What this paper is about

Aiming at the poor heat resistant property of polylactic acid(PLA) fiber,the influences of several heat treatment methods on the breaking strength and elongation of PLA fibers are analyzed.The results indicate that increasing the temperature,the tensile strength of PLA fibers decreases,as well as its elongation increases.When the temperature is above 140 ℃,the treatment would result in the mechanical properties of the PLA fibers significantly decline.

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Available abstract

Aiming at the poor heat resistant property of polylactic acid(PLA) fiber,the influences of several heat treatment methods on the breaking strength and elongation of PLA fibers are analyzed.The results indicate that increasing the temperature,the tensile strength of PLA fibers decreases,as well as its elongation increases.When the temperature is above 140 ℃,the treatment would result in the mechanical properties of the PLA fibers significantly decline.

Key concepts: Polylactic acid, Elongation, Ultimate tensile strength, Materials science, Breaking strength, Composite material, Fiber, Polymer

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