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| Study on Absorbability of PPTA Paper Based on Response Surface Methodology |
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| DOI：10.11980/j.issn.0254-508X.2012.12.004 |
| Key Words:PPTA paper hot pressing response surface methodology absorbability |
| Fund Project:本课题获得国家973计划项目(2010CB732206)资助。 |
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| Abstract:Response surface methodology (RSM) was used to investigate the influence of preparation technology of PPTA (poly (p-phenylene terephthalamide)) paper on its absorbability. The technological parameters such as hot pressing temperature, hot pressing pressure, proportion of PPTA short-cut fiber and beating degree of PPTA-pulp were selected as four independent variables. The correlation between the absorbability and the above four factors was studied. The results showed that the liner and quadratic terms of hot pressing pressure, hot pressing temperature and proportion of PPTA short-cut fiber had highly significant effects on the absorbability of PPTA paper. There was negative correlation between the absorbability of PPTA paper and hot pressing temperature and pressure; meanwhile the positive correlation between the absorbability of PPTA paper and the proportion of PPTA short-cut fiber was found. The quadratic formula was obtained by optimizing the second-order polynomial model. The regression analysis showed that the model possessed higher regression rate (R2=0.9060), having higher coincide degree with the experimental results. This model could be used to analyze and predict the absorbability of PPTA paper. |
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