基于防火密封应用的纤维素海绵的制备
毕业论文关键词：纤维海绵；红麻；碱处理；吸水性；阻燃
Title: Preparation of Cellulose Sponge for Fireproof Sealing Element
Abstract: In this paper, The cellulose sponge was prepared by cellulose xanthate ester hydrolysis method. Kenaf was acted as reinforced fibers. The influence of the addition of kenaf and its addition amount on the properties of kenaf was studied. And, cellulose sponge was flame retardant processed. A mixture was prepared by mixing together viscose, kenaf which was treated by aqueous alkali and sodium sulfate decahydrate. The resulting mixture was molded, and heated by boiling water bath. Then the samples were got after being washed and dried. The structure was studied by FT-IR, XRD and SEM. And the mechanical properties and water absorption of cellulose sponge products were also studied. The results showed that it has good compatibility between the kenaf fibers and regenerated cellulose. The volume, appearance, flexibility and feel of the products can meet the requirements of normal use. At the same time, water absorption and mechanical properties of the sponges were improved. Comprehensive performance of the cellulose sponge would be optimal, when the addition amount of kenaf fiber was 11wt%. Cellulose sponge was flame retardant processed with Mg(OH)2, the effect of flame retardant is excellent.
Keywords: cellulose sponge; kenaf; alkali treatment; water absorption; flame retardant
目录
1引言1
1.1传统人造海绵简介...1
1.2纤维素海绵1
1.2.1纤维素1
1.2.2纤维素海绵..2
1.2.3纤维素的溶解...2
1.2.4纤维素海绵的主要用途..2
1.3增强纤维....3
1.3.1增强纤维简介...3
1.3.2红麻....3
1.4阻燃剂...3
1.4.1氢氧化镁阻燃体系3
1.5本文研究思路.3
1.5.1纤维素海绵的制备4
1.5.2纤维素海绵性能的测定..4
2实验5
2.1实验原料....5
2.2实验仪器....5
2.3纤维素海绵的制备...5
2.3.1纤维素粘胶液的制备.6
2.3.2纤维素海绵的制备6
2.3.3纤维素海绵的后处理.6
2.3.4纤维素海绵试样阻燃处理...7
2.4结构表征与性能测试..7
2.4.1纤维素海绵的形貌照片..7
2.4.2扫描电镜.7
2.4.3红外光谱.7
2.4.4XRD谱图7
2.4.5纤维素海绵吸水性能测试...7.
2.4.6纤维素海绵拉伸强度测试...7
2.4.7纤维素海绵阻燃处理.8
3结果分析..8
3.1纤维素海绵的形貌照片8
3.2纤维素海绵的扫描电镜（SEM）....8
3.3纤维素海绵的红外谱图分析..9
3.4XRD图谱分析...11
3.5纤维素海绵吸水性能分析....12
3.6纤维素海绵拉伸强度分析....13
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