CN110341263A - 一种环保阻燃纺织面料 - Google Patents

一种环保阻燃纺织面料 Download PDF

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CN110341263A
CN110341263A CN201910711985.1A CN201910711985A CN110341263A CN 110341263 A CN110341263 A CN 110341263A CN 201910711985 A CN201910711985 A CN 201910711985A CN 110341263 A CN110341263 A CN 110341263A
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fibre
mixed yarn
fabric
fire resistance
fiber
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李贺
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Anhui Hengyi Textile Technology Co Ltd
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Anhui Hengyi Textile Technology Co Ltd
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    • B32LAYERED PRODUCTS
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    • B32B23/00Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/10Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B23/20Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising esters
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    • C08B3/00Preparation of cellulose esters of organic acids
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/449Yarns or threads with antibacterial properties
    • DTEXTILES; PAPER
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    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
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    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/282Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
    • D06M13/292Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
    • D06M13/298Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof containing halogen atoms
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    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/6436Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • BPERFORMING OPERATIONS; TRANSPORTING
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    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B2262/06Vegetal fibres
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    • D06M2200/30Flame or heat resistance, fire retardancy properties

Abstract

本发明公开了一种环保阻燃纺织面料,为双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,外层面料为亚麻/阻燃纤维混纺纱编织而成,里层面料和外层面料之间通过涤纶低弹丝连接;该面料由将桑皮/抗菌纤维混纺、亚麻/阻燃纤维混纺纱、涤纶低弹丝采用双面大圆机编织而成。本发明采用双层面料,里层面料透气透湿具有抑菌功能,外层面料具有阻燃效果,涤纶低弹丝则起连接作用;抗菌纤维是采用山梨酰氯化学接枝改性的醋酸纤维,具有良好的抗菌性能,阻燃纤维是采用二氯磷酸乙酯分子以及端氨基聚硅氧烷化学接枝的粘胶纤维,具有良好的阻燃性能和力学性能,并且化学成键的结合方式牢固,耐水洗性能强;透气、透湿性能好,具有宽广的应用范围。

Description

一种环保阻燃纺织面料
技术领域
本发明属于功能面料技术领域,具体地,涉及一种环保阻燃纺织面料。
背景技术
纺织面料是一种日常生活种常见的轻工业产品,从前由于生活水平较低,纺织面料只要满足耐用触感好等特点即可,现在随着生活水平的提高,人们对纺织面料的功能趋于多样化,对纺织面料的功能要求也越来越高,类似于环保功能这种功能也成为消费者的需求,另外随着消费者安全意识的提高,对于纺织面料的阻燃性能也有了要求。
专利号为CN201810461238.2的中国专利公开了一种阻燃型纺织面料,包括面料基体、附着在所述面料基体外表面的阻燃剂涂层,所述面料基体的经纱为不锈钢纤维、碳纤维与棉纤维的混纺纱,所述复合面料的纬纱为不锈钢纤维、苎麻纤维与棉纤维的混纺纱,该申请由于在面料表面涂覆一层阻燃剂涂层,使得面料具备优异的阻燃性能。该申请由于是在面料表面涂覆阻燃涂料,一方面,阻燃涂料的耐水洗性不强,随着洗涤次数的增多,阻燃性能下降会比较明显;另一方面,涂覆阻燃涂料会影响面料的透气、透湿性能。
发明内容
本发明的目的在于提供一种环保阻燃纺织面料,采用双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,外层面料为亚麻/阻燃纤维混纺纱编织而成,里层面料透气透湿具有抑菌功能,外层面料具有阻燃效果,涤纶低弹丝则起连接作用;其中的抗菌纤维是采用山梨酰氯化学接枝改性的醋酸纤维,具有良好的抗菌性能,阻燃纤维是采用二氯磷酸乙酯分子以及端氨基聚硅氧烷化学接枝的粘胶纤维,具有良好的阻燃性能和力学性能,并且化学成键的结合方式牢固,有效成分随着水洗不易脱去,耐水洗性能强;同时,采用桑皮/抗菌纤维混纺纱、亚麻/阻燃纤维混纺纱编织而成的双层面料,透气、透湿性能好,穿着舒适,采用的各纤维均具有良好的生物降解性,制得的面料环保且具有良好的抗菌性能、阻燃性能、力学性能、耐水洗性能和舒适性能,具有宽广的应用范围。
本发明的目的可以通过以下技术方案实现:
一种环保阻燃纺织面料,为双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,外层面料为亚麻/阻燃纤维混纺纱编织而成,里层面料和外层面料之间通过涤纶低弹丝连接;
桑皮/抗菌纤维混纺纱由桑皮纤维和抗菌纤维混纺制得,桑皮纤维的含量为40-45%;先将等重量的桑皮纤维和抗菌纤维呈螺旋状交捻制得第一混纺纱,接着将剩余的抗菌纤维和第一混纺纱呈螺旋状交捻制得桑皮/抗菌纤维混纺纱;桑皮/抗菌纤维混纺纱的直径为50-55微米;
亚麻/阻燃纤维混纺纱由亚麻纤维和阻燃纤维混纺制得,亚麻纤维的含量为30-35%;先等重量的亚麻纤维和阻燃纤维呈螺旋状交捻制得第二混纺纱,接着将剩余的阻燃纤维和第二混纺纱呈螺旋状交捻制得亚麻/阻燃纤维混纺纱;亚麻/阻燃纤维混纺纱的直径为45-49微米;
所述纺织面料为由桑皮/抗菌纤维混纺、亚麻/阻燃纤维混纺纱、涤纶低弹丝采用双面大圆机编织而成;
里层面料的经、纬线均为桑皮/抗菌纤维混纺纱,里层面料的经线密度为60-65根/cm,纬线密度为45-50根/cm;外层面料的经、纬线均为亚麻/阻燃纤维混纺纱,外层面料的经线密度为65-70根/cm,纬线密度为50-55根/cm。
进一步地,所述抗菌纤维由如下方法制备:
(1)按照固液比1g:20mL将醋酸纤维素加入到N,N-二甲基乙酰胺中,在65℃恒温条件下以150r/min搅拌使其完全溶解,滴加吡啶;
(2)将上述混合物转移至冰水浴中,待体系温度降至0℃时,在冰水浴条件下缓慢滴加山梨酰氯,山梨酰氯的滴加量为醋酸纤维素质量的40%,滴完后15min将体系移入65℃油浴下搅拌反应24h,反应结束后,产物用去离子水和无水乙醇洗涤至中性,得到改性醋酸纤维;
(3)将改性醋酸纤维溶于N,N-二甲基乙酰胺中,配制成质量分数为6%的纺丝溶液,并加入醋酸纤维素,将纺丝溶液真空脱泡至无气泡,以水作为凝固浴,在常温下进行纺丝,得到抗菌纤维。
进一步地,步骤(1)中吡啶的加入量为醋酸纤维素质量的0.05%。
进一步地,步骤(3)中醋酸纤维素的加入量为改性醋酸纤维质量的40%-42%。
进一步地,所述阻燃纤维由如下方法制备:
(1)将端含氢硅油和烯丙基胺按照物质的量之比为1:2.2加入到装有温度计、冷凝管、磁力搅拌的四口烧瓶中,缓慢加热搅拌并升温至50℃后,加入催化剂氯铂酸溶液,再缓慢升温至85℃,反应4h,再经过抽滤、旋蒸得到阻燃改性剂;
(2)将粘胶纤维浸入质量分数为5%的硫酸水溶液中,40℃下浸泡30min,然后用蒸馏水冲洗粘胶纤维至洗液呈中性,将粘胶纤维烘干至恒重;
(3)将烘干后的粘胶纤维放入装有四氢呋喃的三口烧瓶中,再加入适量三乙胺做缚酸剂,在氮气保护条件下缓慢滴加二氯磷酸乙酯,于冰浴中搅拌反应6h;
(4)将阻燃改性剂加入至上述体系中,继续在充氮气保护的条件下,冰水浴搅拌反应10h,随后再升温至50℃,反应4h,取出纤维,用去离子水冲洗6-8次,烘干至恒重,得到阻燃纤维。
进一步地,步骤(1)中氯铂酸溶液的质量分数为6%,加入的氯铂酸溶液的质量为端含氢硅油和烯丙基胺总质量的0.1%。
进一步地,步骤(4)中阻燃改性剂的加入量为粘胶纤维质量的10%。
本发明的有益效果:
本发明的面料为双层面料,层面料为桑皮/抗菌纤维混纺纱编织而成,其中的抗菌纤维是经过化学改性的醋酸纤维,在DMAC中,醋酸纤维素分子上的羟基与山梨酰氯上的酰氯基发生酯化反应,使得山梨酰氯分子接枝于醋酸纤维分子链上,由于山梨酰基为α,β-不饱和羰基结构,该结构具有较好的抑菌性能,其可以自由通过细菌的细胞膜进入细胞,并与生命物质功能域发生作用,抑制酶体系,达到抑菌作用;同时,山梨酰氯的加入能够破坏醋酸纤维分子间和分子内的氢键作用,使得抗菌纤维的规整性较高,进而提高纤维的强度;再者,接枝于纤维表面的山梨酰基的空间屏蔽效应能有效阻止酸碱质子对酯键的攻击,提高纤维的耐化学腐蚀性,制得的抗菌纤维不仅具有良好的抗菌效果,同时具有较高的强度和耐化学腐蚀性;
本发明的面料为双层面料,外层面料为亚麻/阻燃纤维混纺纱编织而成,其中的阻燃纤维为经过化学改性的粘胶纤维,粘胶纤维表面含有大量羟基(-OH),硫酸水溶液处理能够使粘胶纤维上的羟基暴露出来,粘胶纤维表面的羟基(-OH)与二氯磷酸乙酯分子上的氯原子(-Cl)发生取代反应,同时,控制反应条件,使二氯磷酸乙酯分子上的一个氯原子被取代,形成cell-O-P的中间纤维(cell为粘胶纤维分子链);端含氢硅油和烯丙基胺在氯铂酸的催化作用下,发生硅氢加成反应,生成两端以-CH2-CH2-CH2-NH2封端的聚二甲基硅氧烷;将该阻燃改性剂加入至纤维中间物中,该聚硅氧烷端部的-NH2与接枝于纤维表面的二氯磷酸乙酯分子上的另一个氯原子发生取代反应,从而将聚硅氧烷接枝于纤维表面;阻燃纤维分子链上的磷酸乙酯在受热时,磷酸酯基受热分解生成磷酸,高温时聚合形成聚磷酸,聚磷酸可以使纤维链磷酸化,抑制左旋葡萄糖的生成并加速纤维的脱水炭化,使纤维分子之间进行交联,促进炭层的形成,隔绝氧气,阻止了热传递;另外,含氮组分的存在,受热时产生不可燃的氮气、氨气等,可以使纤维膨化,形成焦炭;同时硅氧基的热稳定性较好,受热分解时,在纤维表面生成无定型二氧化硅和玻璃态炭,对热和氧气传递的传递起到物理上的屏障作用,有利于炭层的形成,从三个方向得到优异的阻燃效果;再者,二氯磷酸乙酯分子以及端氨基聚硅氧烷均是通过共价键接枝于纤维分子链上的,结合力强,因此,有效成分随着水洗不易脱去,耐水洗性能强;
本发明采用双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,外层面料为亚麻/阻燃纤维混纺纱编织而成,里层面料透气透湿具有抑菌功能,外层面料具有阻燃效果,涤纶低弹丝则起连接作用;其中的抗菌纤维是采用山梨酰氯化学接枝改性的醋酸纤维,具有良好的抗菌性能,阻燃纤维是采用二氯磷酸乙酯分子以及端氨基聚硅氧烷化学接枝的粘胶纤维,具有良好的阻燃性能和力学性能,并且化学成键的结合方式牢固,有效成分随着水洗不易脱去,耐水洗性能强;同时,采用桑皮/抗菌纤维混纺纱、亚麻/阻燃纤维混纺纱编织而成的双层面料,透气、透湿性能好,穿着舒适,采用的各纤维均具有良好的生物降解性,制得的面料环保且具有良好的抗菌性能、阻燃性能、力学性能、耐水洗性能和舒适性能,具有宽广的应用范围。
具体实施方式
下面将结合实施例对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
一种环保阻燃纺织面料,为双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,外层面料为亚麻/阻燃纤维混纺纱编织而成,里层面料和外层面料之间通过涤纶低弹丝连接;外层面料具有阻燃效果,里层面料透气透湿具有抑菌功能,涤纶低弹丝则起连接作用;
桑皮/抗菌纤维混纺纱由桑皮纤维和抗菌纤维混纺制得,其中桑皮纤维的含量为40-45%;等重量的桑皮纤维和抗菌纤维呈螺旋状交捻制得第一混纺纱,接着将剩余的抗菌纤维和第一混纺纱呈螺旋状交捻制得桑皮/抗菌纤维混纺纱;桑皮/抗菌纤维混纺纱的直径为50-55微米;
桑皮纤维是一种典型的生态纤维原料,来源于废弃的桑树皮,具有优良的吸湿性、透气性、保暖性和一定的保健效果,具有一定的抑菌性能;
亚麻/阻燃纤维混纺纱由亚麻纤维和阻燃纤维混纺制得,其中亚麻纤维的含量为30-35%;等重量的亚麻纤维和阻燃纤维呈螺旋状交捻制得第二混纺纱,接着将剩余的阻燃纤维和第二混纺纱呈螺旋状交捻制得亚麻/阻燃纤维混纺纱;亚麻/阻燃纤维混纺纱的直径为45-49微米;
采用双面大圆机编织而成;里层面料的经、纬线均为桑皮/抗菌纤维混纺纱,里层面料和外层面料的经线密度为60-65根/cm,纬线密度为45-50根/cm;外层面料的经、纬线均为亚麻/阻燃纤维混纺纱,外层面料的经线密度为65-70根/cm,纬线密度为50-55根/cm;
所述抗菌纤维由如下方法制备:
(1)按照固液比1g:20mL将醋酸纤维素加入到N,N-二甲基乙酰胺中,在65℃恒温条件下以150r/min搅拌使其完全溶解,滴加吡啶(吡啶的加入量为醋酸纤维素质量的0.05%);
(2)将上述混合物转移至冰水浴中,待体系温度降至0℃时,在冰水浴条件下缓慢滴加山梨酰氯(山梨酰氯的滴加量为醋酸纤维素质量的40%),滴完后15min将体系移入65℃油浴下搅拌反应24h,反应结束后,产物用去离子水和无水乙醇洗涤至中性,得到改性醋酸纤维;
(3)将改性醋酸纤维溶于N,N-二甲基乙酰胺中,配制成质量分数为6%的纺丝溶液,并加入醋酸纤维素(醋酸纤维素的加入量为改性醋酸纤维质量的40%-42%,醋酸纤维素的加入可以增加溶液的可纺性),将纺丝溶液真空脱泡至无气泡,以水作为凝固浴,在常温下进行纺丝,得到抗菌纤维;
在DMAC中,醋酸纤维素分子上的羟基与山梨酰氯上的酰氯基发生酯化反应,使得山梨酰氯分子接枝于醋酸纤维分子链上,由于山梨酰基为α,β-不饱和羰基结构,该结构具有较好的抑菌性能,其可以自由通过细菌的细胞膜进入细胞,并与生命物质功能域发生作用,抑制酶体系,达到抑菌作用;同时,山梨酰氯的加入能够破坏醋酸纤维分子间和分子内的氢键作用,使得抗菌纤维的规整性较高,进而提高纤维的强度;再者,接枝于纤维表面的山梨酰基的空间屏蔽效应能有效阻止酸碱质子对酯键的攻击,提高纤维的耐化学腐蚀性,制得的抗菌纤维不仅具有良好的抗菌效果,同时具有较高的强度和耐化学腐蚀性;
所述阻燃纤维由如下方法制备:
(1)将端含氢硅油和烯丙基胺按照物质的量之比为1:2.2加入到装有温度计、冷凝管、磁力搅拌的四口烧瓶中,缓慢加热搅拌并升温至50℃后,加入催化剂氯铂酸溶液(氯铂酸溶液的质量分数为6%,加入的氯铂酸溶液的质量为端含氢硅油和烯丙基胺总质量的0.1%),再缓慢升温至85℃,反应4h,再经过抽滤、旋蒸得到阻燃改性剂;
(2)将粘胶纤维浸入质量分数为5%的硫酸水溶液中,40℃下浸泡30min,然后用蒸馏水冲洗粘胶纤维至洗液呈中性,将粘胶纤维烘干至恒重;
(3)将烘干后的粘胶纤维放入装有四氢呋喃的三口烧瓶中,再加入适量三乙胺做缚酸剂,在氮气保护条件下缓慢滴加二氯磷酸乙酯,于冰浴中搅拌反应6h;
(4)将阻燃改性剂加入至上述体系中,继续在充氮气保护的条件下,冰水浴搅拌反应10h,随后再升温至50℃,反应4h,取出纤维,用去离子水冲洗6-8次,烘干至恒重,得到阻燃纤维;
其中,阻燃改性剂的加入量为粘胶纤维质量的10%;
粘胶纤维表面含有大量羟基(-OH),硫酸水溶液处理能够使粘胶纤维上的羟基暴露出来,粘胶纤维表面的羟基(-OH)与二氯磷酸乙酯分子上的氯原子(-Cl)发生取代反应,同时,控制反应条件,使二氯磷酸乙酯分子上的一个氯原子被取代,形成cell-O-P的中间纤维(cell为粘胶纤维分子链);端含氢硅油和烯丙基胺在氯铂酸的催化作用下,发生硅氢加成反应,生成两端以-CH2-CH2-CH2-NH2封端的聚二甲基硅氧烷;将该阻燃改性剂加入至纤维中间物中,该聚硅氧烷端部的-NH2与接枝于纤维表面的二氯磷酸乙酯分子上的另一个氯原子发生取代反应,从而将聚硅氧烷接枝于纤维表面;阻燃纤维分子链上的磷酸乙酯在受热时,磷酸酯基受热分解生成磷酸,高温时聚合形成聚磷酸,聚磷酸可以使纤维链磷酸化,抑制左旋葡萄糖的生成并加速纤维的脱水炭化,使纤维分子之间进行交联,促进炭层的形成,隔绝氧气,阻止了热传递;另外,含氮组分的存在,受热时产生不可燃的氮气、氨气等,可以使纤维膨化,形成焦炭;同时硅氧基的热稳定性较好,受热分解时,在纤维表面生成无定型二氧化硅和玻璃态炭,对热和氧气传递的传递起到物理上的屏障作用,有利于炭层的形成,从三个方向得到优异的阻燃效果;再者,二氯磷酸乙酯分子以及端氨基聚硅氧烷均是通过共价键接枝于纤维分子链上的,结合力强,因此,有效成分随着水洗不易脱去,耐水洗性能强。
实施例1
抗菌纤维由如下方法制备:
(1)按照固液比1g:20mL将醋酸纤维素加入到N,N-二甲基乙酰胺中,在65℃恒温条件下以150r/min搅拌使其完全溶解,滴加吡啶(吡啶的加入量为醋酸纤维素质量的0.05%);
(2)将上述混合物转移至冰水浴中,待体系温度降至0℃时,在冰水浴条件下缓慢滴加山梨酰氯(山梨酰氯的滴加量为醋酸纤维素质量的40%),滴完后15min将体系移入65℃油浴下搅拌反应24h,反应结束后,产物用去离子水和无水乙醇洗涤至中性,得到改性醋酸纤维;
(3)将改性醋酸纤维溶于N,N-二甲基乙酰胺中,配制成质量分数为6%的纺丝溶液,并加入醋酸纤维素(醋酸纤维素的加入量为改性醋酸纤维质量的40%),将纺丝溶液真空脱泡至无气泡,以水作为凝固浴,在常温下进行纺丝,得到抗菌纤维。
实施例2
(1)按照固液比1g:20mL将醋酸纤维素加入到N,N-二甲基乙酰胺中,在65℃恒温条件下以150r/min搅拌使其完全溶解,滴加吡啶(吡啶的加入量为醋酸纤维素质量的0.05%);
(2)将上述混合物转移至冰水浴中,待体系温度降至0℃时,在冰水浴条件下缓慢滴加山梨酰氯(山梨酰氯的滴加量为醋酸纤维素质量的40%),滴完后15min将体系移入65℃油浴下搅拌反应24h,反应结束后,产物用去离子水和无水乙醇洗涤至中性,得到改性醋酸纤维;
(3)将改性醋酸纤维溶于N,N-二甲基乙酰胺中,配制成质量分数为6%的纺丝溶液,并加入醋酸纤维素(醋酸纤维素的加入量为改性醋酸纤维质量的42%),将纺丝溶液真空脱泡至无气泡,以水作为凝固浴,在常温下进行纺丝,得到抗菌纤维。
对比例1
普通醋酸纤维。
对实施例1-2和对比例1得到的纤维做如下性能测试:
采用电子单纤维强力仪测试纤维的力学强度;将纤维分别浸泡在5mol/LHCl溶液中6h及1mol/L的NaOH溶液中1h后,重新称重,计算失重率,测试耐化学腐蚀性;采用接触震荡法对纤维进行抗菌性测试,计算抑菌率,测试结果如下表1:
表1
由表1可知,实施例1-2得到的抗菌纤维的断裂强度达2.12-2.18cN·dtex-1,说明本发明制得的抗菌纤维具有良好的力学性能;实施例1-2制得的抗菌纤维的酸浸失重率为4.4-4.6%,碱浸失重率为10.1-10.2%,结合对比例1,说明本发明制得的抗菌纤维具有良好的耐酸碱腐蚀性能;实施例1-2得到的抗菌纤维对大肠杆菌和金黄色葡萄球菌的抑菌率分别为78.2-78.5%、90.2-90.3%,说明本发明制得的抗菌纤维具有良好的抑菌性能。
实施例3
阻燃纤维由如下方法制备:
(1)将端含氢硅油和烯丙基胺按照物质的量之比为1:2.2加入到装有温度计、冷凝管、磁力搅拌的四口烧瓶中,缓慢加热搅拌并升温至50℃后,加入催化剂氯铂酸溶液(氯铂酸溶液的质量分数为6%,加入的氯铂酸溶液的质量为端含氢硅油和烯丙基胺总质量的0.1%),再缓慢升温至85℃,反应4h,再经过抽滤、旋蒸得到阻燃改性剂;
(2)将粘胶纤维浸入质量分数为5%的硫酸水溶液中,40℃下浸泡30min,然后用蒸馏水冲洗粘胶纤维至洗液呈中性,将粘胶纤维烘干至恒重;
(3)将烘干后的粘胶纤维放入装有四氢呋喃的三口烧瓶中,再加入适量三乙胺做缚酸剂,在氮气保护条件下缓慢滴加二氯磷酸乙酯,于冰浴中搅拌反应6h;
(4)将阻燃改性剂加入至上述体系中,继续在充氮气保护的条件下,冰水浴搅拌反应10h,随后再升温至50℃,反应4h,取出纤维,用去离子水冲洗6-8次,烘干至恒重,得到阻燃纤维。
对比例2
普通粘胶纤维。
对实施例3和对比例2制得的纤维做如下性能测试:采用电子单纤维强力仪测试纤维的力学强度;按GB/T 5455-1997《纺织品阻燃性能实验垂直法》,采用织物阻燃性能测试仪对纤维进行燃烧性能测试,测试结果如下表2:
表2
实施例3 对比例2
断裂强度/cN·dtex<sup>-1</sup> 3.25 2.18
增重/% 5.4 0
余焰时间/s 0 3
燃烧速率/mm·s<sup>-1</sup> 1.6 58
炭化长度/mm 49.5 0
由表2可知,实施例3制得的阻燃纤维的断裂强度为3.25cN·dtex-1,说明经过阻燃改性剂的接枝改性,能够提高粘胶纤维的力学强度;阻燃性能方面,实施例3制得的阻燃纤维在垂直燃烧实验中,增重5.4%,余焰时间为0s,燃烧速率为1.6mm·s-1,炭化长度为49.5mm,说明本发明制得的阻燃纤维在燃烧时能够有效形成炭层,具有优异的阻燃效果。
实施例4
一种环保阻燃纺织面料,为双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,其中,抗菌纤维为实施例1制得的抗菌纤维;外层面料为亚麻/阻燃纤维混纺纱编织而成,其中的阻燃纤维为实施例3制得的阻燃纤维,里层面料和外层面料之间通过涤纶低弹丝连接。
实施例5
一种环保阻燃纺织面料,为双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,其中,抗菌纤维为实施例2制得的抗菌纤维;外层面料为亚麻/阻燃纤维混纺纱编织而成,其中的阻燃纤维为实施例3制得的阻燃纤维,里层面料和外层面料之间通过涤纶低弹丝连接。
对比例3
将实施例1中的抗菌纤维换为对比例1的纤维。
对比例4
将实施例1中的阻燃纤维换为对比例2的纤维。
对实施例4-5和对比例3-4制得的面料做如下性能测试:
力学性能:按照TB/T 3138-2006测试面料的拉伸强度;阻燃性能:极限氧指数、损毁长度、阴燃时间、续燃时间测试采用LFY-606B数显氧指数测定仪,按照GB/T5454-1997标准测定;抑菌性能:按照GB/T 20944.2-2007《纺织品抗菌性能的评价第2部分:吸收法》测试面料的抗菌性;水洗50次后,再分别按照相同的方式测试阻燃性能和抑菌性能,测试结果如下表3:
表3
可知,实施例4-5制得的面料的纵向拉伸强度为1356-1394N,横向拉伸强度为,纵向断裂强度为1067-1085N,说明本发明制得的面料具有良好的力学强度;实施例4-5制得的面料的极限氧指数为28.9-32.1,阴燃时间为0s,续燃时间为3.9-4.1s,损毁长度为5.9-6.0cm,说明本发明制得的面料具有良好的的阻燃性能;实施例4-5制得的面料对大肠杆菌的抑菌率为76.6-76.9%,对金黄色葡萄球菌的抑菌率89.0-89.5%,说明本发明制得的面料具有良好的抑菌性能;水洗50次后,实施例4-5制得的面料的极限氧指数、损毁长度以及大肠杆菌、金黄葡萄球菌的抑菌率均只有微小幅度的变化,说明面料中有效成分随着水洗不易脱去,耐水洗性能强。
以上公开的本发明优选实施例只是用于帮助阐述本发明。优选实施例并没有详尽叙述所有的细节,也不限制该发明仅为所述的具体实施方式。显然,根据本说明书的内容,可作很多的修改和变化。本说明书选取并具体描述这些实施例,是为了更好地解释本发明的原理和实际应用,从而使所属技术领域技术人员能很好地理解和利用本发明。本发明仅受权利要求书及其全部范围和等效物的限制。

Claims (7)

1.一种环保阻燃纺织面料,其特征在于,为双层面料,里层面料为桑皮/抗菌纤维混纺纱编织而成,外层面料为亚麻/阻燃纤维混纺纱编织而成,里层面料和外层面料之间通过涤纶低弹丝连接;
桑皮/抗菌纤维混纺纱由桑皮纤维和抗菌纤维混纺制得,桑皮纤维的含量为40-45%;先将等重量的桑皮纤维和抗菌纤维呈螺旋状交捻制得第一混纺纱,接着将剩余的抗菌纤维和第一混纺纱呈螺旋状交捻制得桑皮/抗菌纤维混纺纱;桑皮/抗菌纤维混纺纱的直径为50-55微米;
亚麻/阻燃纤维混纺纱由亚麻纤维和阻燃纤维混纺制得,亚麻纤维的含量为30-35%;先等重量的亚麻纤维和阻燃纤维呈螺旋状交捻制得第二混纺纱,接着将剩余的阻燃纤维和第二混纺纱呈螺旋状交捻制得亚麻/阻燃纤维混纺纱;亚麻/阻燃纤维混纺纱的直径为45-49微米;
所述纺织面料为由桑皮/抗菌纤维混纺、亚麻/阻燃纤维混纺纱、涤纶低弹丝采用双面大圆机编织而成;
里层面料的经、纬线均为桑皮/抗菌纤维混纺纱,里层面料的经线密度为60-65根/cm,纬线密度为45-50根/cm;外层面料的经、纬线均为亚麻/阻燃纤维混纺纱,外层面料的经线密度为65-70根/cm,纬线密度为50-55根/cm。
2.根据权利要求1所述的一种环保阻燃纺织面料,其特征在于,所述抗菌纤维由如下方法制备:
(1)按照固液比1g:20mL将醋酸纤维素加入到N,N-二甲基乙酰胺中,在65℃恒温条件下以150r/min搅拌使其完全溶解,滴加吡啶;
(2)将上述混合物转移至冰水浴中,待体系温度降至0℃时,在冰水浴条件下缓慢滴加山梨酰氯,山梨酰氯的滴加量为醋酸纤维素质量的40%,滴完后15min将体系移入65℃油浴下搅拌反应24h,反应结束后,产物用去离子水和无水乙醇洗涤至中性,得到改性醋酸纤维;
(3)将改性醋酸纤维溶于N,N-二甲基乙酰胺中,配制成质量分数为6%的纺丝溶液,并加入醋酸纤维素,将纺丝溶液真空脱泡至无气泡,以水作为凝固浴,在常温下进行纺丝,得到抗菌纤维。
3.根据权利要求2所述的一种环保阻燃纺织面料,其特征在于,步骤(1)中吡啶的加入量为醋酸纤维素质量的0.05%。
4.根据权利要求2所述的一种环保阻燃纺织面料,其特征在于,步骤(3)中醋酸纤维素的加入量为改性醋酸纤维质量的40%-42%。
5.根据权利要求1所述的一种环保阻燃纺织面料,其特征在于,所述阻燃纤维由如下方法制备:
(1)将端含氢硅油和烯丙基胺按照物质的量之比为1:2.2加入到装有温度计、冷凝管、磁力搅拌的四口烧瓶中,缓慢加热搅拌并升温至50℃后,加入催化剂氯铂酸溶液,再缓慢升温至85℃,反应4h,再经过抽滤、旋蒸得到阻燃改性剂;
(2)将粘胶纤维浸入质量分数为5%的硫酸水溶液中,40℃下浸泡30min,然后用蒸馏水冲洗粘胶纤维至洗液呈中性,将粘胶纤维烘干至恒重;
(3)将烘干后的粘胶纤维放入装有四氢呋喃的三口烧瓶中,再加入适量三乙胺做缚酸剂,在氮气保护条件下缓慢滴加二氯磷酸乙酯,于冰浴中搅拌反应6h;
(4)将阻燃改性剂加入至上述体系中,继续在充氮气保护的条件下,冰水浴搅拌反应10h,随后再升温至50℃,反应4h,取出纤维,用去离子水冲洗6-8次,烘干至恒重,得到阻燃纤维。
6.根据权利要求5所述的一种环保阻燃纺织面料,其特征在于,步骤(1)中氯铂酸溶液的质量分数为6%,加入的氯铂酸溶液的质量为端含氢硅油和烯丙基胺总质量的0.1%。
7.根据权利要求5所述的一种环保阻燃纺织面料,其特征在于,步骤(4)中阻燃改性剂的加入量为粘胶纤维质量的10%。
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