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| Research on the Crystallization Properties of PMIA-Pulp |
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| DOI：10.11980/j.issn.0254-508X.2013.10.008 |
| Key Words:DTA-TG pMIA-pulp glass-transition temperature thermal crack Hot pressing |
| Fund Project:陕西省西安市科技局技术转移促进工程项目，编号：CX1256（8）；陕西省造纸技术及特种纸品开发重点实验室访问学者项目，编号：12JS024。 |
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| Abstract:The crystallization property of aramid pulp has a significant impact on the structure and the important properties of the aramid paper-based materials. Two kinds of aramid pulp F1 and F2 were tested by DSC, that glass transition of amophous part of the pulps appeared about at 283℃, cold crystallization peak of the pulps appeared at above 370℃, and cold crystallization ability of F2-pulp was stronger than that of F1-pulp. The crystallization properties of two kinds of PMIA-Pulp were analyzed by DTA-TG, in order to study the heat-resistant properties of the pulps. It was concluded that the glass-transition temperature of F1 pulp was lower than that of F2 pulp,but cold crystallization peak appeared temperature of F1 pulp was higher that of F2 pulp. Crystallization properties of two kinds of PMIA-Pulp were studied after hot pressing, the impact of hot-pressing on crystallization properties of pulp was explored. |
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