Dynamic Thermal Mechanical Behaviors and Mechanical Properties of Reversible Thermochromism Wood-Plastic Composite

Abstract:

To prepare a late-model and functional wood-plastic composite (WPC), the reversible thermochromism crystal violet lactone microcapsule was prepared by situ polymerization, then fabricated reversible thermochromism WPC by microcapsule and low density polyethylene with Maleic anhydride grafted polyethylene. Comparing the L, a and b data of apparent color of reversible thermochromism WPC, the value of chromatism (ΔE) showed the difference of heating before and after, it was also measured to characterize the color-change level; the mechanical properties of ordinary WPC and reversible thermochromism WPC were measured respectively to compare the advantages and disadvantages of two kinds of WPC; Then the storage modulus and loss modulus of ordinary WPC and reversible thermochromism WPC were determined to distinguish the good from the bad of two kinds of composites. The results indicated that the reversible thermochromism WPC is a functional composite with noticeable color-changed effects, and tensile strength, bending strength and interface compatibility were better than ordinary WPC, but had worse impact property contrarily.

• Periodical: Key Engineering Materials (Volume 727)
• Pages: 571-578
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.727.571
• Online since: January 2017
• Authors: Yue Qin Wen, Ying Ying Sun, Jian Feng Xu, Jing Bing Chen, Xin Xiang Zhang*, Wen Bin Yang
• Keywords: Dynamic Thermal Mechanical Analysis, Interface Compatibility, Mechanical Properties, Reversible Thermochromism, Wood-Plastic Composite

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