EXTRACTION OF DISCARDED CORN HUSK FIBERS AND ITS FLAME RETARDED COMPOSITES

Year 2017, Volume: 27 Issue: 4, 408 - 413, 27.12.2017

Lihua Lv Jihong Bi Fang Ye Yongfang Qıan Yuping Zhao Ru Chen Xinggen Su

Abstract

Discarded corn husk fibers/ polylactic acid composites containing ammonium polyphosphate and pentaerythritol as flame

retardants were prepared by blended hot mastication process． The factors affecting the results were hot processing temperature, time,

and pressure, mass fraction of discarded corn cob husk fibers made by flame retardant treatment, etc. Under the optimal technology

conditions, the flame retardancy and mechanical properties were determined as follows: limiting oxygen index was 35.2 %; bending

strength was 84 MPa; tensile strength was 40 MPa; impact strength was 6.4 KJ/m2. The flame retarded composites made of pre-treated

corn husk fibers and polylactic acid with good flame retarded and mechanical properties could be used in building materials, furniture,

decorative materials and other fields.

Keywords

Discarded corn husk, flame retardant treatment, polylactic acid, composites， flame retarded properties, mechanical properties

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