Influence of Filler Content and Optimal Formulation under Water Absorption of Wood-Plastic Composites Using Mixture Design
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Abstract
The prediction of optimal proportion of wood-plastic composites (WPCs) under water absorption for 2h and 24h was investigated. The experimental design was determined from mixture design. Factors of experiment were recycled high-density polyethylene (rHDPE), rubberwood sawdust (RWS), and carbon black (CB) with constant of coupling agent (MAPE) and lubricant (WAX), respectively. The experimental results were analyzed by analysis of variance (ANONA) and optimized using response surface methodology (RSM). The results of the experiment showed that the mixture ratios had significantly (P < 0.05) affected on short-term water absorption. Increasing of rubberwood sawdust resulted in increased water absorption properties. In contrast, the Increasing of recycled high-density polyethylene and carbon black resulted in decreased water absorption properties. Additionally, the regression model and contour plot were used to analysis the effects of factors mixture ratios. The optimal proportion of WPCs was 55.0wt% rHDPE, 25.0wt% RWS, 15.0wt% CB, 4.0wt% MAPE, and 1.0wt% WAX with desirability score combining their outputs value of 97.10%. To the accuracy of the response prediction, the optimal proportion was observed in the actual value to compare the experimental results and determine the percentage error of the experiment.
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บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการตีพิมพ์ในวารสารฯ ถือเป็นลิขสิทธิ์ของวารสารฯ หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือเพื่อกระทำการใดๆ จะได้รับอนุญาต แต่ห้ามนำไปใช้เพื่่อประโยชน์ทางธุรกิจ และห้ามดัดแปลง
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