酸碱处理条件下芳纶Ⅲ的强伸性能研究
|
摘要
探讨酸碱环境下国产芳纶Ⅲ纤维的强伸性能变化情况。测试分析了国产芳纶Ⅲ纤维原样及其在酸碱处理条件下的强伸性能,并与对位芳纶进行了对比。结果表明:芳纶Ⅲ纤维的断裂强度几乎是对位芳纶的1.5倍,模量也高于对位芳纶。在强酸溶液处理下,其大分子结构中的酰胺键会出现水解现象,但仍表现出较好的耐酸性;在碱溶液处理下,国产芳纶Ⅲ纤维表现出极佳的耐碱腐蚀性能。认为:芳纶Ⅲ纤维适用于高强高模、且有一定耐酸碱腐蚀性要求的场合,是一种较好的过滤材料。
The change situation for the strength &elongation of domestic aramid III fiber under acid &alkali condition was discussed.The strength &elongation properties of original domestic aramid III fiber and treated under acid &alkali were tested and analyzed.Moreover,they were compared with para-aramid.The test results show that the breaking strength of aramid III fiber is almost 1.5times that of para-aramid,the modulus is higher than that of para-aramid.Under the treatment of strong acid solution,hydrolysis phenomenon was happened on the amido bond of macromolecular structure.However,it still shows better acid resistance.Under the treatment of strong alkali solution,domestic aramid III fiber still has excellent alkali resisting property.It is considered that domestic aramid III fiber is suitable for the situation with requirement of higher strength and higher modulus and a certain requirement on acid resistance and alkali resistance.It is a better filtration material.
The change situation for the strength &elongation of domestic aramid III fiber under acid &alkali condition was discussed.The strength &elongation properties of original domestic aramid III fiber and treated under acid &alkali were tested and analyzed.Moreover,they were compared with para-aramid.The test results show that the breaking strength of aramid III fiber is almost 1.5times that of para-aramid,the modulus is higher than that of para-aramid.Under the treatment of strong acid solution,hydrolysis phenomenon was happened on the amido bond of macromolecular structure.However,it still shows better acid resistance.Under the treatment of strong alkali solution,domestic aramid III fiber still has excellent alkali resisting property.It is considered that domestic aramid III fiber is suitable for the situation with requirement of higher strength and higher modulus and a certain requirement on acid resistance and alkali resistance.It is a better filtration material.
引文
[1]彭涛,郭灵虹,傅旭,等.样品倾斜的X-射线衍射法分析芳纶Ⅲ纤维径向结构[J].合成纤维,2005(6):21-24.
[2]周玉玺,曾金芳,王斌.芳纶Ⅲ与Kevlar-49纤维组成、结构与力学性能的对比[J].宇航材料工艺,2007(3):71-73.
[3]彭涛,蔡仁钦,王凤德,等.成型过程中的芳纶III纤维聚集态结构衍变[J].固体火箭技术,2010,33(2):209-213.
[4]MATSUDA.Sequenee Analysis of Technora(Copolyamide of Terephthaloyl Chloride,P-phenylenediamine,and 3,4′-diaminodiphenyl ether)Using CNMR[J].Macromolecules,2003,36:6160-6165.
[5]MACHALABA N N,KURYLEVA N N.Tver Fibers of the Armos Type:Manufacture and Properties[J].Fibre Chemistry,2000,33:319-324.
[6]于伟东.纺织材料学[M].北京:中国纺织出版社,2006:43-46.
[7]蔡仁钦,彭涛,王凤德,等.Kevlar 49纤维与芳纶Ⅲ的结构与性能研究[J].合成纤维工业,2010,33(6):28-31.
[8]周玉玺,曾金芳,王斌.芳纶Ⅲ与Kevlar-49纤维组成、结构与力学性能的对比[J].宇航材料工艺,2007(3):71-73.
[2]周玉玺,曾金芳,王斌.芳纶Ⅲ与Kevlar-49纤维组成、结构与力学性能的对比[J].宇航材料工艺,2007(3):71-73.
[3]彭涛,蔡仁钦,王凤德,等.成型过程中的芳纶III纤维聚集态结构衍变[J].固体火箭技术,2010,33(2):209-213.
[4]MATSUDA.Sequenee Analysis of Technora(Copolyamide of Terephthaloyl Chloride,P-phenylenediamine,and 3,4′-diaminodiphenyl ether)Using CNMR[J].Macromolecules,2003,36:6160-6165.
[5]MACHALABA N N,KURYLEVA N N.Tver Fibers of the Armos Type:Manufacture and Properties[J].Fibre Chemistry,2000,33:319-324.
[6]于伟东.纺织材料学[M].北京:中国纺织出版社,2006:43-46.
[7]蔡仁钦,彭涛,王凤德,等.Kevlar 49纤维与芳纶Ⅲ的结构与性能研究[J].合成纤维工业,2010,33(6):28-31.
[8]周玉玺,曾金芳,王斌.芳纶Ⅲ与Kevlar-49纤维组成、结构与力学性能的对比[J].宇航材料工艺,2007(3):71-73.