建筑用针刺非织造布保温材料的性能研究

Study on properties of needle-punched nonwoven fabric used as building insulation material

为探究建筑用针刺非织造布保温材料的保温性和阻燃性,以再生棉纤维和阻燃涤纶纤维为原料,采用非织造针刺工艺,制备7组不同比例的非织造布保温材料。其中,对100%再生棉纤维试样进行阻燃整理剂后整理,并测试7组试样的透气性、保温性和阻燃性。结果表明,经过阻燃后整理的试样,透气性减小,拉伸强力减小,保温性降低,阻燃性能最好;混合阻燃纤维的试样,随着阻燃纤维含量的增加,透气性有所提高,拉伸断裂强力增加,保温性能略有提高。当阻燃纤维含量为55%～70%时,阻燃性能随着阻燃纤维含量的增加而增加;当阻燃纤维含量为70%～80%时,阻燃效果趋于稳定。

In order to investigate the thermal insulation properties and flame retardant properties of needle-punched nonwoven fabrics used as building insulation materials,7 samples of non-woven fabrics were prepared by using different proportions of recycled cotton fiber and flame-retardant polyester fiber as raw materials.A woven fabric insulation material was selected,in which a set of 100% recycled cotton fiber samples were finished with a flame retardant finishing agent,and the air permeability,thermal insulation properties and flame retardancy of the seven groups of samples were tested.The results show that after flame retardant finishing,the gas permeability and the tensile strength is reduced,the heat preservation property is lower,and the flame retardant performance is the best.With the increase of the content of flame retardant fiber,the gas permeability improves,the tensile breaking strength increases,and the heat preservation performance slightly improves.When the flame retardant fiber content is 55% to 70%,the flame retardant property increases with the content of flame retardant fiber increases,when the content of flame retardant fiber is 70%~80%,the flame retardant effect tends to be stable.