CN112609451A - 一种阻燃抑烟功能性棉织物及其制备方法 - Google Patents
一种阻燃抑烟功能性棉织物及其制备方法 Download PDFInfo
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Abstract
本发明属于纺织品技术领域,涉及一种阻燃抑烟功能性棉织物及其制备方法。包括:S1.将棉织物浸入NaOH溶液中,取出水洗至中性后烘干;S2.将环氧氯丙烷溶于助溶剂后加入NaOH溶液;S3.将经步骤S1的棉织物加入步骤S2的溶液中醚化处理;S4.将乙二胺溶于水中,并加入催化剂;S5.将醚化处理后的棉织物加入步骤S4得到的溶液中改性处理;S6.将钼酸盐溶于水中,加入五氧化二钒和硝酸,混合均匀;S7.将改性后的棉织物浸入步骤S6得到的溶液中,在70~100℃下反应1.5~6h,室温放置1~4天后取出,水洗,晾干,得阻燃抑烟功能性棉织物。该棉织物具有安全性高、抑烟、无毒、价廉等优点,且性能稳定,不易挥发。
Description
技术领域
本发明属于纺织品技术领域,尤其是涉及一种阻燃抑烟功能性棉织物及其制备方法。
背景技术
随着地区城市化进程的加快,高层、超高层建筑逐渐增多,在其中工作、生活的人也越来越多,屋内纺织品的需求也大大增加,而伴随之产生的高层建筑的火灾问题也越来被世界所瞩目。因此,阻燃织物的研究变得非常必要,利用具有阻燃性的纺织品,可以很好的起到预防火灾,延缓火势,争取营救时间的作用。棉是纺织产业的主要材料,它在纺织产品中占据很关键的位置,且棉纺织品凭借其优越的吸湿性,透气性和柔软而保暖的特性而被广泛应用,但棉织物由于阻燃性能较差,一般需要经过阻燃整理达到一定的阻燃效果。传统的阻燃整理一般选用有机类阻燃剂,随着环保要求的不断提高,有机类阻燃剂逐渐被限制,无机阻燃剂越来越被市场所关注。因此,开发一种安全性高、抑烟、无毒的阻燃抑烟功能性棉织物具有重要意义。
发明内容
有鉴于此,本发明的目的在于提出一种阻燃抑烟功能性棉织物及其制备方法,该制备方法制备得到的阻燃抑烟功能性棉织物具有安全性高、抑烟、无毒、价廉等优点,且其性能稳定,不易挥发。
为解决上述技术问题,本发明提供了一种阻燃抑烟功能性棉织物的制备方法,所述制备方法包括:
S1.将棉织物按1:(30~100)的浴比浸入NaOH溶液中,室温搅拌1~3h,水洗至中性后70~100℃烘干;
S2.将环氧氯丙烷溶于助溶剂后加入NaOH溶液,混合均匀,得第一混合溶液;
S3.将步骤S1处理得到的棉织物加入所述第一混合溶液中,在20~50℃下醚化3~8h,水洗后烘干,得到醚化棉织物;
S4.将乙二胺溶于水中,并加入催化剂,混合均匀,得到第二混合溶液;
S5.将所述醚化棉织物加入所述第二混合溶液中,在20~50℃下反应1~5h,水洗后烘干,得到改性棉织物;
S6.将钼酸盐溶于水中,再加入五氧化二钒和硝酸,混合均匀后稀释,得到第三混合溶液;
S7.将所述改性棉织物投入所述第三混合溶液中,在70~100℃下反应1.5~6h,室温放置1~4天后取出,水洗,室温晾干,得阻燃抑烟功能性棉织物。
进一步的,所述步骤S1中,NaOH溶液的浓度为5~20wt%,
进一步的,所述步骤S2中,NaOH溶液的浓度为5~10wt%,环氧氯丙烷与NaOH溶液的体积比为(10~50):(100~500),环氧氯丙烷与助溶剂的体积比为1:1。
进一步的,所述步骤S2中,助溶剂为乙醇、丙酮或两者的混合物。
进一步的,所述步骤S4中,催化剂为Na2CO3或NaHCO3,乙二胺、水和催化剂的用量比为(10~50)mL:(100~500)mL:(1~5)g。
进一步的,所述步骤S6中,钼酸盐为钼酸钠或钼酸铵,钼酸盐与五氧化二钒的质量比为(1~5):(3~5),所述第三混合溶液中钼酸盐的浓度为0.5~50g/L。
本发明还提供了一种上述制备方法制备得到的阻燃抑烟功能性棉织物。
与现有技术相比,本发明通过控制改性条件控制改性后的棉纤维大分子中羟基含量的高低,从而控制活性结合点的数量,最终实现具有阻燃消烟功能的POM片状晶体的可控生长,得到阻燃抑烟功能性棉织物。具有阻燃消烟的POM与棉织物键合,改性的棉纤维大分子中含有大量的羟基(-OH)等活性基团的有机电子给体,可以与POM形成授-受电荷转移化合物,POM在高温下可以分解释放出一些能吸收一定量热的物质,起到冷却稀释作用,且多酸覆盖在棉纤维表面可形成碳层,阻隔外部的氧和挥发性可燃物,从而达到阻燃抑烟的目的。
附图说明
图1是本发明实施例1提供的阻燃抑烟功能性棉织物电镜图。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解,在阅读了本发明讲授的内容之后,本领域技术人员可以对本发明作各种改动或修改,等价形式改动或修改同样落于本申请的权利要求书所限定的范围。
实施例1
步骤1、将10g的棉织物浸入质量分数20%的NaOH溶液中,浴比1∶100,室温搅拌3h,水洗至中性,80℃烘干。
步骤2、将50mL环氧氯丙烷溶于50mL乙醇中,并加入500ml质量分数为10%的NaOH溶液,混合均匀,得第一混合溶液。
步骤3、将步骤1处理的棉织物加入步骤2的第一混合溶液中,在50℃下醚化5h,水洗,70℃烘干,得醚化棉织物。
步骤4、将50mL乙二胺溶于500mL水中,并加入5g的Na2CO3,混合均匀,得第二混合溶液。
步骤5、将步骤3得到的醚化棉织物加入步骤4的溶液中,在50℃下反应5h,水洗,70℃烘干,得改性棉织物。
步骤6、将5g的钼酸钠溶于50mL水中,再加入3g的五氧化二钒和10mL硝酸,稀释至300mL,得到第三混合溶液。
步骤7、将步骤5得到的改性棉织物投入步骤6得到的第三混合溶液中,在100℃下反应2h,室温放置4天后取出,水洗,室温晾干,得阻燃抑烟功能性棉织物。该棉织物的电镜图如图1所示。
实施例2
步骤1、将5g的棉织物浸入质量分数20%的NaOH溶液中,浴比1∶30,室温搅拌1h,水洗至中性,70℃烘干。
步骤2、将10mL环氧氯丙烷溶于10mL丙酮中,并加入500ml质量分数为5%的NaOH溶液,混合均匀,得第一混合溶液。
步骤3、将步骤1处理的棉织物加入步骤2的第一混合溶液中,在20℃下醚化8h,水洗,70℃烘干,得醚化棉织物。
步骤4、将10mL乙二胺溶于500mL水中,并加入1g的Na2CO3,混合均匀,得第二混合溶液。
步骤5、将步骤3得到的醚化棉织物加入步骤4的溶液中,在20℃下反应1h,水洗,70℃烘干,得改性棉织物。
步骤6、将0.5g的钼酸钠溶于50mL水中,再加入1g的五氧化二钒和2mL硝酸,稀释至1000mL,得到第三混合溶液。
步骤7、将步骤5得到的改性棉织物投入步骤6得到的第三混合溶液中,在100℃下反应6h,室温放置1天后取出,水洗,室温晾干。
实施例3
步骤1、将10g的棉织物浸入质量分数5%的NaOH溶液中,浴比1∶50,室温搅拌2h,水洗至中性,100℃烘干。
步骤2、将50mL环氧氯丙烷溶于50mL乙醇中,并加入100ml质量分数为10%的NaOH溶液,混合均匀,得第一混合溶液。
步骤3、将步骤1处理的棉织物加入步骤2的第一混合溶液中,在50℃下醚化3h,水洗,70℃烘干,得醚化棉织物。
步骤4、将50mL乙二胺溶于100mL水中,并加入5g的Na2CO3,混合均匀,得第二混合溶液。
步骤5、将步骤3得到的醚化棉织物加入步骤4的溶液中,在50℃下反应5h,水洗,70℃烘干,得改性棉织物。
步骤6、将5g的钼酸铵溶于50mL水中,再加入3g的五氧化二钒和1mL硝酸,稀释至100mL,得到第三混合溶液。
步骤7、将步骤5得到的改性棉织物投入步骤6得到的第三混合溶液中,在70℃下反应1.5h,室温放置2天后取出,水洗,室温晾干。
比较例1
步骤1、将10g的棉织物浸入质量分数20%的NaOH溶液中,浴比1∶100,室温搅拌3h,水洗至中性,80℃烘干。
步骤2、将50mL环氧氯丙烷溶于50mL乙醇中,并加入500ml质量分数为10%的NaOH溶液,混合均匀,得第一混合溶液。
步骤3、将步骤1处理的棉织物加入步骤2的第一混合溶液中,在50℃下醚化5h,水洗,70℃烘干,得醚化棉织物。
步骤4、将50mL乙二胺溶于500mL水中,并加入5g的Na2CO3,混合均匀,得第二混合溶液。
步骤5、将步骤3得到的醚化棉织物加入步骤4的溶液中,在50℃下反应5h,水洗,70℃烘干,得改性棉织物。
步骤6、将5g的钨酸钠溶于50mL水中,再加入3g的五氧化二钒和10mL硝酸,稀释至300mL,得到第三混合溶液。
步骤7、将步骤5得到的改性棉织物投入步骤6得到的第三混合溶液中,在100℃下反应2h,室温放置4天后取出,水洗,室温晾干,得到多金属钨酸盐棉织物。
将原棉织物、实施例1-3制备的阻燃抑烟功能性棉织物和比较例1制备的棉织物分别进行垂直燃烧法阻燃性能测试,结果见表1。
表1棉织物垂直燃烧测试数据
从表1可知,通过钼酸钠、钼酸铵所制得的多金属钼酸盐棉织物具有较好的阻燃抑烟效果,而通过钨酸钠所制得的多金属钨酸盐棉织物阻燃抑烟效果较差。
本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (7)
1.一种阻燃抑烟功能性棉织物的制备方法,其特征在于,所述制备方法包括:
S1.将棉织物按1:(30~100)的浴比浸入NaOH溶液中,室温搅拌1~3h,水洗至中性后70~100℃烘干;
S2.将环氧氯丙烷溶于助溶剂后加入NaOH溶液,混合均匀,得第一混合溶液;
S3.将步骤S1处理得到的棉织物加入所述第一混合溶液中,在20~50℃下醚化3~8h,水洗后烘干,得到醚化棉织物;
S4.将乙二胺溶于水中,并加入催化剂,混合均匀,得到第二混合溶液;
S5.将所述醚化棉织物加入所述第二混合溶液中,在20~50℃下反应1~5h,水洗后烘干,得到改性棉织物;
S6.将钼酸盐溶于水中,再加入五氧化二钒和硝酸,混合均匀后稀释,得到第三混合溶液;
S7.将所述改性棉织物投入所述第三混合溶液中,在70~100℃下反应1.5~6h,室温放置1~4天后取出,水洗,室温晾干,得阻燃抑烟功能性棉织物。
2.根据权利要求1所述的制备方法,其特征在于,所述步骤S1中,NaOH溶液的浓度为5~20wt%。
3.根据权利要求1所述的制备方法,其特征在于,所述步骤S2中,NaOH溶液的浓度为5~10wt%,环氧氯丙烷与NaOH溶液的体积比为(10~50):(100~500),环氧氯丙烷与助溶剂的体积比为1:1。
4.根据权利要求1所述的制备方法,其特征在于,所述步骤S2中,助溶剂为乙醇、丙酮或两者的混合物。
5.根据权利要求1所述的制备方法,其特征在于,所述步骤S4中,催化剂为Na2CO3或NaHCO3,乙二胺、水和催化剂的用量比为(10~50)mL:(100~500)mL:(1~5)g。
6.根据权利要求1所述的制备方法,其特征在于,所述步骤S6中,钼酸盐为钼酸钠或钼酸铵,钼酸盐与五氧化二钒的质量比为(1~5):(1~3),所述第三混合溶液中钼酸盐的浓度为0.5~50g/L。
7.权利要求1~6任一项所述制备方法制备得到的阻燃抑烟功能性棉织物。
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