Cargando…

Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites

Red pottery clay (RPC) was modified using a silane coupling agent, and the modified RPC (mRPC) was then used to enhance the performance of high-density polyethylene-based wood-plastic composites. The effect of the mRPC content on the performances of the composites was investigated through Fourier tr...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Qingde, Gao, Xun, Cheng, Wanli, Han, Guangping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459118/
https://www.ncbi.nlm.nih.gov/pubmed/28772470
http://dx.doi.org/10.3390/ma10020111
_version_ 1783241907612155904
author Li, Qingde
Gao, Xun
Cheng, Wanli
Han, Guangping
author_facet Li, Qingde
Gao, Xun
Cheng, Wanli
Han, Guangping
author_sort Li, Qingde
collection PubMed
description Red pottery clay (RPC) was modified using a silane coupling agent, and the modified RPC (mRPC) was then used to enhance the performance of high-density polyethylene-based wood-plastic composites. The effect of the mRPC content on the performances of the composites was investigated through Fourier transform infrared spectrometry, differential mechanical analysis (DMA) and ultraviolet (UV)-accelerated aging tests. After adding the mRPC, a moisture adsorption hysteresis was observed. The DMA results indicated that the mRPC effectively enhanced the rigidity and elasticity of the composites. The mRPC affected the thermal gravimetric, leading to a reduction of the thermal degradation rate and a right-shift of the thermal degradation peak; the initial thermal degradation temperature was increased. After 3000 h of UV-accelerated aging, the flexural strength and impact strength both declined. For aging time between 0 and 1000 h, the increase in amplitude of ΔL* (luminescence) and ΔE* (color) reached a maximum; the surface fading did not became obvious. ΔL* and ΔE* increased more significantly between 1000 and 2000 h. These characterization results indicate that the chromophores of the mRPC became briefly active. However, when the aging times were higher than 2000 h, the photo-degradation reaction was effectively prevented by adding the mRPC. The best overall enhancement was observed for an mRPC mass percentage of 5%, with a storage modulus of 3264 MPa and an increase in loss modulus by 16.8%, the best anti-aging performance and the lowest degree of color fading.
format Online
Article
Text
id pubmed-5459118
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-54591182017-07-28 Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites Li, Qingde Gao, Xun Cheng, Wanli Han, Guangping Materials (Basel) Article Red pottery clay (RPC) was modified using a silane coupling agent, and the modified RPC (mRPC) was then used to enhance the performance of high-density polyethylene-based wood-plastic composites. The effect of the mRPC content on the performances of the composites was investigated through Fourier transform infrared spectrometry, differential mechanical analysis (DMA) and ultraviolet (UV)-accelerated aging tests. After adding the mRPC, a moisture adsorption hysteresis was observed. The DMA results indicated that the mRPC effectively enhanced the rigidity and elasticity of the composites. The mRPC affected the thermal gravimetric, leading to a reduction of the thermal degradation rate and a right-shift of the thermal degradation peak; the initial thermal degradation temperature was increased. After 3000 h of UV-accelerated aging, the flexural strength and impact strength both declined. For aging time between 0 and 1000 h, the increase in amplitude of ΔL* (luminescence) and ΔE* (color) reached a maximum; the surface fading did not became obvious. ΔL* and ΔE* increased more significantly between 1000 and 2000 h. These characterization results indicate that the chromophores of the mRPC became briefly active. However, when the aging times were higher than 2000 h, the photo-degradation reaction was effectively prevented by adding the mRPC. The best overall enhancement was observed for an mRPC mass percentage of 5%, with a storage modulus of 3264 MPa and an increase in loss modulus by 16.8%, the best anti-aging performance and the lowest degree of color fading. MDPI 2017-01-26 /pmc/articles/PMC5459118/ /pubmed/28772470 http://dx.doi.org/10.3390/ma10020111 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Qingde
Gao, Xun
Cheng, Wanli
Han, Guangping
Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites
title Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites
title_full Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites
title_fullStr Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites
title_full_unstemmed Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites
title_short Effect of Modified Red Pottery Clay on the Moisture Absorption Behavior and Weatherability of Polyethylene-Based Wood-Plastic Composites
title_sort effect of modified red pottery clay on the moisture absorption behavior and weatherability of polyethylene-based wood-plastic composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5459118/
https://www.ncbi.nlm.nih.gov/pubmed/28772470
http://dx.doi.org/10.3390/ma10020111
work_keys_str_mv AT liqingde effectofmodifiedredpotteryclayonthemoistureabsorptionbehaviorandweatherabilityofpolyethylenebasedwoodplasticcomposites
AT gaoxun effectofmodifiedredpotteryclayonthemoistureabsorptionbehaviorandweatherabilityofpolyethylenebasedwoodplasticcomposites
AT chengwanli effectofmodifiedredpotteryclayonthemoistureabsorptionbehaviorandweatherabilityofpolyethylenebasedwoodplasticcomposites
AT hanguangping effectofmodifiedredpotteryclayonthemoistureabsorptionbehaviorandweatherabilityofpolyethylenebasedwoodplasticcomposites