CN115198425B - 利用废旧纺织品制造隔热保温面料的方法 - Google Patents
利用废旧纺织品制造隔热保温面料的方法 Download PDFInfo
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- CN115198425B CN115198425B CN202210899115.3A CN202210899115A CN115198425B CN 115198425 B CN115198425 B CN 115198425B CN 202210899115 A CN202210899115 A CN 202210899115A CN 115198425 B CN115198425 B CN 115198425B
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- D06M11/00—Treating 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
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
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- D06M13/325—Amines
- D06M13/328—Amines the amino group being bound to an acyclic or cycloaliphatic carbon atom
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- D—TEXTILES; PAPER
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Organic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
本发明公开一种利用废旧纺织品制造隔热保温面料的方法,涉及废旧纺织品利用技术领域。本发明用于解决如何将废旧纺织品内的纤维再生,并结合多种保温方式得到强度高且隔热保温的面料的技术问题;制造方法的步骤包括清洗除污、杀菌消毒、开松除磁、分选、混纺、织造后处理、保温涂层制备;再生聚酯纤维具有良好的断裂强度、弹性模量,再生聚丙烯纤维具有良好的强度、弹性、耐磨性、耐腐蚀性、电绝缘性和保暖性,加入保温纤维后,混纺得到的纱线兼具良好的强度、耐磨性、防静电性和隔热保温性;保温涂层制备时通过在隔热保温面料半成品的外表面印刷保温涂层,减缓热量的流失,提高面料成品的隔热保温性能。
Description
技术领域
本发明涉及废旧纺织品利用技术领域,具体涉及一种利用废旧纺织品制造隔热保温面料的方法。
背景技术
废旧纤维纺织品目前主要采用机械方法、化学方法或能量回收方法进行废旧纤维纺织品的回收再利用。机械方法通过加工切割等技术重新加工成短纤维、纱线;化学方法通过将合成纤维大分子表面进行改性,加工得到新的纤维;能量回收方法通过焚烧产生热量用于火力发电,但是将废旧纤维纺织品通过综合处理的方式得到再生功能面料的报道很少。
现有技术(CN107653693A)公开了一种制作兼具隔热保温和吸光发热保暖涂层工艺,包括步骤一,调制吸光发热涂层胶;步骤二,在面料正面涂敷吸光发热涂层胶;步骤三,首次烘干;步骤四,调制隔热保温涂层胶;步骤五,在面料反面涂敷隔热保温涂层胶;步骤六,二次烘干。采用本工艺制作的面料,能够吸收太阳光并转换为热量,还能因为在隔热保温涂层中含有中空的玻璃微珠,从而具有极好的隔热保温效果。但是如果利用废旧纺织品制造隔热保温面料,会存在以下技术问题:如何将废旧纺织品内的纤维再生,并结合多种保温方式得到强度高且隔热保温的面料。
发明内容
本发明的目的在于提供一种利用废旧纺织品制造隔热保温面料的方法,用于解决现有技术中如何将废旧纺织品内的纤维再生,并结合多种保温方式得到强度高且隔热保温的面料的技术问题。
本发明的目的可以通过以下技术方案实现:
利用废旧纺织品制造隔热保温面料的方法,包括以下步骤:
S1、清洗除污:选取含有聚酯纤维与聚丙烯纤维的废旧纺织品,依次通过乙醇溶液清洗、蒸馏水清洗、碳酸钾溶液清洗、丙酮清洗,过滤,75~90℃干燥得到除污纺织品;其中,乙醇溶液的浓度为70~85vt%,碳酸钾溶液的浓度为0.6~1.5mol/L;
S2、杀菌消毒:将除污纺织品浸渍于65~76℃的杀菌液内浸渍处理40~60min,晾干得到无菌纺织品;
S3、开松除磁:将无菌纺织品粉碎成长2~6cm、宽1~3cm的小块,再通入开松机内开松除磁得到开松混合纤维;
S4、分选:将开松混合纤维根据密度分选得到再生聚酯纤维和再生聚丙烯纤维;
S5、混纺:根据纱线单支数73/1,捻度780捻/m,捻向Z;股纱72/2,捻度820捻/m,捻向S;按照重量百分比,将60wt%的再生聚酯纤维、30wt%的再生聚丙烯纤维和10wt%的保温纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线;
S6、织造后处理:将混纺纱线按照经密305~320根/10cm、纬密260~280根/10cm、厚度0.3~0.5mm织造得到织造面料;织造面料经烧毛、烘干、热定型得到隔热保温面料半成品;
S7、保温涂层制备:采用丝网印刷方式将保温涂层料印刷在隔热保温面料半成品的外表面,120~130℃下烘烤30~40min形成保温涂层。
本发明隔热保温面料的制造方法,步骤包括清洗除污、杀菌消毒、开松除磁、分选、混纺、织造后处理、保温涂层制备;清洗除污步骤溶解除去了废旧纺织品内的大部分水溶性、油溶性杂质;杀菌消毒步骤通过杀菌液浸渍,杀菌液内的羧甲基壳聚糖通过吸附在细胞表面形成一层高分子膜,改变细胞膜的通透性,使得细胞质壁分离,起到抑菌、杀菌的作用,羧甲基壳聚糖在水中良好分散,硬脂酸钙对纺织品内的残留卤素进行吸附,杀菌消毒后提高了纺织品的洁净度;混纺步骤中,再生聚酯纤维具有良好的断裂强度、弹性模量、耐热性和耐光性,再生聚丙烯纤维具有良好的强度、弹性、耐磨性、耐腐蚀性、电绝缘性和保暖性,加入保温纤维后,混纺得到的纱线兼具良好的强度、耐磨性、防静电性和隔热保温性;保温涂层制备时通过在隔热保温面料半成品的外表面印刷保温涂层,进一步减缓热量的流失,提高面料成品的隔热保温性能。
进一步的,所述保温纤维的制备方法包括以下步骤:
步骤一,将海泡石纤维浸泡于去离子水中,超声波搅拌10~20分钟,过80目筛网,干燥得到含湿量小于0.5%的预处理海泡石纤维;将正硅酸乙酯加入三口烧瓶内,加入乙醇、水、2~5wt%的盐酸溶液,400~550rpm转速搅拌均匀得到混合液,混合液置于48~55℃下加热1~2小时,冷却至室温,置于-20~-10℃下真空冷冻2~3小时,冰水浴下加入0.1~0.3mol/L的氨水,得到二氧化硅溶胶;
步骤二,按照重量份,将15~26份预处理海泡石纤维与4~11份硅酸镁铝、0.5~3份聚丙烯酰胺分散剂、25~42份二氧化硅溶胶加入搅拌机中,混合均匀后超声分散3~8min,真空抽滤得到湿凝胶纤维;
步骤三,将湿凝胶纤维浸泡于乙醇溶液中,62~76℃下加热陈化1~2小时,抽滤后加入环己烷、三乙胺和甲基硅醇钠,升温至72~85℃,保温加热1~2小时,抽滤,采用乙醇浸泡20~30min,减压抽滤,85~95℃加热30~40min得到保温纤维。
保温纤维的制备方法中,将海泡石纤维浸泡、超声搅拌后得到预处理海泡石纤维,预处理海泡石纤维与硅酸镁铝、聚丙烯酰胺分散剂、二氧化硅溶胶混合分散得到湿凝胶纤维;湿凝胶纤维陈化、溶剂处理后得到保温纤维;其中,海泡石纤维的结构单元中,硅氧四面体与镁氧八面体相互交替,具有层状和链状的过渡特征,比表面积高、孔隙率大,具有良好的吸附、催化性能、隔热绝缘性能,去离子水浸泡和超声波搅拌的过程中除去了海泡石纤维孔道内的水溶性杂质和金属离子;硅酸镁铝具有独特的三维空间链式结构及特殊的针、棒状晶体结构,胶体和吸附性能优异;二氧化硅凝胶在聚丙烯酰胺分散剂的分散作用下,扩散入预处理海泡石纤维和硅酸镁铝表面,经过陈化处理、憎水剂甲基硅醇钠处理后,得到疏水修饰的海泡石纤维复合凝胶的保温纤维,与再生聚酯纤维、再生聚丙烯纤维混纺后能够发挥隔热绝缘、阻断热对流和热传导的作用,提高面料成品的保温隔热性能。
进一步的,步骤一正硅酸乙酯、乙醇、盐酸溶液、氨水的体积比为1~2:3~5:0.8~1.5:0.2~0.5;步骤三环己烷、三乙胺和甲基硅醇钠的体积比为30~42:3~6:2~5,湿凝胶纤维与环己烷的用量比为3~5g:3~4mL。
进一步的,所述保温涂层料的制备方法包括以下步骤:按照重量份,将32~50份保温环氧树脂、6~13份二氧化硅气凝胶微粉、2~6份缩水甘油醚、5~11份N,N-二甲基苄胺、0.8~2份羧甲基纤维素钠、0.3~0.9份双氨丙基聚二甲基硅氧烷、35~58份水混合均匀,加热至75~90℃,保温搅拌30min即可。
进一步的,所述保温环氧树脂的环氧当量为210~240g/eq,粘度为1200~1400Pa·s;二氧化硅气凝胶微粉的导热系数为0.016w/m·K,密度为60kg/m3,憎水率为99.2%,比表面积为800m2/g。
进一步的,杀菌液由以下重量份的成分混合而成:15~28份羧甲基壳聚糖、6~15份硬脂酸钙和30~55份水。
进一步的,步骤S6烘干温度为120℃,烘干时间为40min,热定型温度为180℃。
本发明具备下述有益效果:
1、本发明隔热保温面料的制造方法,混纺步骤中再生聚酯纤维具有良好的断裂强度、弹性模量、耐热性和耐光性,再生聚丙烯纤维具有良好的强度、弹性、耐磨性、耐腐蚀性、电绝缘性和保暖性,加入保温纤维后,混纺得到的纱线兼具良好的强度、耐磨性、防静电性和隔热保温性;保温涂层制备时通过在隔热保温面料半成品的外表面印刷保温涂层,减缓热量的流失,提高面料成品的隔热保温性能。
2、保温纤维通过二氧化硅凝胶在聚丙烯酰胺分散剂的分散作用下,扩散入预处理海泡石纤维和硅酸镁铝表面,经过陈化处理、憎水剂甲基硅醇钠处理后,得到疏水修饰的海泡石纤维复合凝胶的保温纤维,与再生聚酯纤维、再生聚丙烯纤维混纺后能够发挥隔热绝缘、阻断热对流和热传导的作用,提高面料成品的保温隔热性能。
3、保温涂层料选取活性高、粘黏性好的保温环氧树脂,在缩水甘油醚的稀释作用、羧甲基纤维素钠的乳化稳定作用、双氨丙基聚二甲基硅氧烷的抗静电整理下,对质轻、疏松多孔、憎水、低导热的二氧化硅气凝胶微粉进行粘结包裹,经过N,N-二甲基苄胺的固化后,在隔热保温面料半成品的外表面形成多孔低导热并能阻止热传导的保温涂层。
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做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。
实施例1
本实施例提供一种利用废旧纺织品制造隔热保温面料的方法,包括以下步骤:
S1、清洗除污:选取含有聚酯纤维与聚丙烯纤维的废旧纺织品,依次通过乙醇溶液清洗、蒸馏水清洗、碳酸钾溶液清洗、丙酮清洗,过滤,82℃干燥得到除污纺织品;其中,乙醇溶液的浓度为75vt%,碳酸钾溶液的浓度为0.9mol/L;
S2、杀菌消毒:将除污纺织品浸渍于72℃的杀菌液内浸渍处理45min,晾干得到无菌纺织品;其中,杀菌液由以下重量份的成分混合而成:23份羧甲基壳聚糖、9份硬脂酸钙和46份水;
S3、开松除磁:将无菌纺织品粉碎成长4cm、宽2cm的小块,再通入开松机内开松除磁得到开松混合纤维;
S4、分选:将开松混合纤维根据密度分选得到再生聚酯纤维和再生聚丙烯纤维;
S5、混纺:根据纱线单支数73/1,捻度780捻/m,捻向Z;股纱72/2,捻度820捻/m,捻向S;按照重量百分比,将60wt%的再生聚酯纤维、30wt%的再生聚丙烯纤维和10wt%的保温纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线;
保温纤维的制备方法包括以下步骤:
步骤一,将海泡石纤维浸泡于去离子水中,超声波搅拌16分钟,过80目筛网,干燥得到含湿量小于0.5%的预处理海泡石纤维;将18mL正硅酸乙酯加入三口烧瓶内,加入36mL乙醇、28mL水、12mL 4wt%的盐酸溶液,490rpm转速搅拌均匀得到混合液,混合液置于53℃下加热1.6小时,冷却至室温,置于-15℃下真空冷冻2.5小时,冰水浴下加入3.6mL 0.2mol/L的氨水,得到二氧化硅溶胶;
步骤二,按照重量份,将23份预处理海泡石纤维与8份硅酸镁铝、1.8份聚丙烯酰胺分散剂、37份二氧化硅溶胶加入搅拌机中,混合均匀后超声分散7min,真空抽滤得到湿凝胶纤维;
步骤三,将36g湿凝胶纤维浸泡于乙醇溶液中,73℃下加热陈化1.8小时,抽滤后加入35mL环己烷、4mL三乙胺和3mL甲基硅醇钠,升温至77℃,保温加热1.5小时,抽滤,采用乙醇浸泡28min,减压抽滤,93℃加热34min得到保温纤维;
S6、织造后处理:将混纺纱线按照经密312根/10cm、纬密268根/10cm、厚度0.37mm织造得到织造面料;织造面料经烧毛、烘干、热定型得到隔热保温面料半成品;其中,烘干温度为120℃,烘干时间为40min,热定型温度为180℃;
S7、保温涂层制备:采用丝网印刷方式将保温涂层料印刷在隔热保温面料半成品的外表面,123℃下烘烤35min形成保温涂层;
保温涂层料的制备方法包括以下步骤:按照重量份,将36份保温环氧树脂、11份二氧化硅气凝胶微粉、5份缩水甘油醚、8份N,N-二甲基苄胺、1.6份羧甲基纤维素钠、0.6份双氨丙基聚二甲基硅氧烷、46份水混合均匀,加热至83℃,保温搅拌30min即可。其中,保温环氧树脂的环氧当量为230g/eq,粘度为1300Pa·s;二氧化硅气凝胶微粉的导热系数为0.016w/m·K,密度为60kg/m3,憎水率为99.2%,比表面积为800m2/g。
实施例2
本实施例提供一种利用废旧纺织品制造隔热保温面料的方法,包括以下步骤:
S1、清洗除污:选取含有聚酯纤维与聚丙烯纤维的废旧纺织品,依次通过乙醇溶液清洗、蒸馏水清洗、碳酸钾溶液清洗、丙酮清洗,过滤,86℃干燥得到除污纺织品;其中,乙醇溶液的浓度为78vt%,碳酸钾溶液的浓度为1.2mol/L;
S2、杀菌消毒:将除污纺织品浸渍于73℃的杀菌液内浸渍处理52min,晾干得到无菌纺织品;其中,杀菌液由以下重量份的成分混合而成:23份羧甲基壳聚糖、13份硬脂酸钙和47份水;
S3、开松除磁:将无菌纺织品粉碎成长4cm、宽1.5cm的小块,再通入开松机内开松除磁得到开松混合纤维;
S4、分选:将开松混合纤维根据密度分选得到再生聚酯纤维和再生聚丙烯纤维;
S5、混纺:根据纱线单支数73/1,捻度780捻/m,捻向Z;股纱72/2,捻度820捻/m,捻向S;按照重量百分比,将60wt%的再生聚酯纤维、30wt%的再生聚丙烯纤维和10wt%的保温纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线;
保温纤维的制备方法包括以下步骤:
步骤一,将海泡石纤维浸泡于去离子水中,超声波搅拌17分钟,过80目筛网,干燥得到含湿量小于0.5%的预处理海泡石纤维;将18mL正硅酸乙酯加入三口烧瓶内,加入37mL乙醇、25mL水、10mL 3wt%的盐酸溶液,480rpm转速搅拌均匀得到混合液,混合液置于54℃下加热1.8小时,冷却至室温,置于-12℃下真空冷冻2.6小时,冰水浴下加入3mL 0.16mol/L的氨水,得到二氧化硅溶胶;
步骤二,按照重量份,将24份预处理海泡石纤维与10份硅酸镁铝、1.8份聚丙烯酰胺分散剂、36份二氧化硅溶胶加入搅拌机中,混合均匀后超声分散7min,真空抽滤得到湿凝胶纤维;
步骤三,将42g湿凝胶纤维浸泡于乙醇溶液中,73℃下加热陈化1.6小时,抽滤后加入33mL环己烷、5mL三乙胺和4mL甲基硅醇钠,升温至77℃,保温加热1.5小时,抽滤,采用乙醇浸泡25min,减压抽滤,93℃加热36min得到保温纤维;
S6、织造后处理:将混纺纱线按照经密312根/10cm、纬密265根/10cm、厚度0.4mm织造得到织造面料;织造面料经烧毛、烘干、热定型得到隔热保温面料半成品;其中,烘干温度为120℃,烘干时间为40min,热定型温度为180℃;
S7、保温涂层制备:采用丝网印刷方式将保温涂层料印刷在隔热保温面料半成品的外表面,128℃下烘烤35min形成保温涂层;
保温涂层料的制备方法包括以下步骤:按照重量份,将46份保温环氧树脂、12份二氧化硅气凝胶微粉、5份缩水甘油醚、9份N,N-二甲基苄胺、1.7份羧甲基纤维素钠、0.4份双氨丙基聚二甲基硅氧烷、47份水混合均匀,加热至83℃,保温搅拌30min即可。其中,保温环氧树脂的环氧当量为225g/eq,粘度为1320Pa·s;二氧化硅气凝胶微粉的导热系数为0.016w/m·K,密度为60kg/m3,憎水率为99.2%,比表面积为800m2/g。
实施例3
本实施例提供一种利用废旧纺织品制造隔热保温面料的方法,包括以下步骤:
S1、清洗除污:选取含有聚酯纤维与聚丙烯纤维的废旧纺织品,依次通过乙醇溶液清洗、蒸馏水清洗、碳酸钾溶液清洗、丙酮清洗,过滤,86℃干燥得到除污纺织品;其中,乙醇溶液的浓度为83vt%,碳酸钾溶液的浓度为0.8mol/L;
S2、杀菌消毒:将除污纺织品浸渍于73℃的杀菌液内浸渍处理50min,晾干得到无菌纺织品;其中,杀菌液由以下重量份的成分混合而成:26份羧甲基壳聚糖、14份硬脂酸钙和50份水;
S3、开松除磁:将无菌纺织品粉碎成长5cm、宽1.6cm的小块,再通入开松机内开松除磁得到开松混合纤维;
S4、分选:将开松混合纤维根据密度分选得到再生聚酯纤维和再生聚丙烯纤维;
S5、混纺:根据纱线单支数73/1,捻度780捻/m,捻向Z;股纱72/2,捻度820捻/m,捻向S;按照重量百分比,将60wt%的再生聚酯纤维、30wt%的再生聚丙烯纤维和10wt%的保温纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线;
保温纤维的制备方法包括以下步骤:
步骤一,将海泡石纤维浸泡于去离子水中,超声波搅拌18分钟,过80目筛网,干燥得到含湿量小于0.5%的预处理海泡石纤维;将15mL正硅酸乙酯加入三口烧瓶内,加入32mL乙醇、40mL水、10mL 5wt%的盐酸溶液,530rpm转速搅拌均匀得到混合液,混合液置于52℃下加热1.8小时,冷却至室温,置于-10℃下真空冷冻2.8小时,冰水浴下加入5mL 0.18mol/L的氨水,得到二氧化硅溶胶;
步骤二,按照重量份,将24份预处理海泡石纤维与9份硅酸镁铝、2.6份聚丙烯酰胺分散剂、40份二氧化硅溶胶加入搅拌机中,混合均匀后超声分散7min,真空抽滤得到湿凝胶纤维;
步骤三,将46g湿凝胶纤维浸泡于乙醇溶液中,72℃下加热陈化2小时,抽滤后加入40mL环己烷、5.5mL三乙胺和4.2mL甲基硅醇钠,升温至83℃,保温加热1.8小时,抽滤,采用乙醇浸泡27min,减压抽滤,94℃加热38min得到保温纤维;
S6、织造后处理:将混纺纱线按照经密315根/10cm、纬密270根/10cm、厚度0.45mm织造得到织造面料;织造面料经烧毛、烘干、热定型得到隔热保温面料半成品;其中,烘干温度为120℃,烘干时间为40min,热定型温度为180℃;
S7、保温涂层制备:采用丝网印刷方式将保温涂层料印刷在隔热保温面料半成品的外表面,128℃下烘烤38min形成保温涂层;
保温涂层料的制备方法包括以下步骤:按照重量份,将48份保温环氧树脂、11份二氧化硅气凝胶微粉、5.5份缩水甘油醚、10份N,N-二甲基苄胺、1.4份羧甲基纤维素钠、0.8份双氨丙基聚二甲基硅氧烷、56份水混合均匀,加热至88℃,保温搅拌30min即可。其中,保温环氧树脂的环氧当量为220g/eq,粘度为1350Pa·s;二氧化硅气凝胶微粉的导热系数为0.016w/m·K,密度为60kg/m3,憎水率为99.2%,比表面积为800m2/g。
实施例4
本实施例提供一种利用废旧纺织品制造隔热保温面料的方法,包括以下步骤:
S1、清洗除污:选取含有聚酯纤维与聚丙烯纤维的废旧纺织品,依次通过乙醇溶液清洗、蒸馏水清洗、碳酸钾溶液清洗、丙酮清洗,过滤,90℃干燥得到除污纺织品;其中,乙醇溶液的浓度为85vt%,碳酸钾溶液的浓度为1.4mol/L;
S2、杀菌消毒:将除污纺织品浸渍于75℃的杀菌液内浸渍处理48min,晾干得到无菌纺织品;其中,杀菌液由以下重量份的成分混合而成:26份羧甲基壳聚糖、13份硬脂酸钙和52份水;
S3、开松除磁:将无菌纺织品粉碎成长5.2cm、宽2.7cm的小块,再通入开松机内开松除磁得到开松混合纤维;
S4、分选:将开松混合纤维根据密度分选得到再生聚酯纤维和再生聚丙烯纤维;
S5、混纺:根据纱线单支数73/1,捻度780捻/m,捻向Z;股纱72/2,捻度820捻/m,捻向S;按照重量百分比,将60wt%的再生聚酯纤维、30wt%的再生聚丙烯纤维和10wt%的保温纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线;
保温纤维的制备方法包括以下步骤:
步骤一,将海泡石纤维浸泡于去离子水中,超声波搅拌20分钟,过80目筛网,干燥得到含湿量小于0.5%的预处理海泡石纤维;将20mL正硅酸乙酯加入三口烧瓶内,加入43mL乙醇、35mL水、13mL 3wt%的盐酸溶液,530rpm转速搅拌均匀得到混合液,混合液置于53℃下加热1.6小时,冷却至室温,置于-18℃下真空冷冻3小时,冰水浴下加入4.8mL 0.25mol/L的氨水,得到二氧化硅溶胶;
步骤二,按照重量份,将25份预处理海泡石纤维与11份硅酸镁铝、2.6份聚丙烯酰胺分散剂、40份二氧化硅溶胶加入搅拌机中,混合均匀后超声分散7min,真空抽滤得到湿凝胶纤维;
步骤三,将48g湿凝胶纤维浸泡于乙醇溶液中,76℃下加热陈化2小时,抽滤后加入38mL环己烷、5.2mL三乙胺和3.6mL甲基硅醇钠,升温至84℃,保温加热2小时,抽滤,采用乙醇浸泡30min,减压抽滤,93℃加热40min得到保温纤维;
S6、织造后处理:将混纺纱线按照经密316根/10cm、纬密275根/10cm、厚度0.45mm织造得到织造面料;织造面料经烧毛、烘干、热定型得到隔热保温面料半成品;其中,烘干温度为120℃,烘干时间为40min,热定型温度为180℃;
S7、保温涂层制备:采用丝网印刷方式将保温涂层料印刷在隔热保温面料半成品的外表面,128℃下烘烤32min形成保温涂层;
保温涂层料的制备方法包括以下步骤:按照重量份,将45份保温环氧树脂、12份二氧化硅气凝胶微粉、5.6份缩水甘油醚、10份N,N-二甲基苄胺、1.8份羧甲基纤维素钠、0.8份双氨丙基聚二甲基硅氧烷、56份水混合均匀,加热至87℃,保温搅拌30min即可。其中,保温环氧树脂的环氧当量为240g/eq,粘度为1380Pa·s;二氧化硅气凝胶微粉的导热系数为0.016w/m·K,密度为60kg/m3,憎水率为99.2%,比表面积为800m2/g。
对比例1
本对比例与实施例1的区别在于,取消杀菌消毒步骤。
对比例2
本对比例与实施例1的区别在于,混纺步骤按照重量百分比,将70wt%的再生聚酯纤维和30wt%的再生聚丙烯纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线。
对比例3
本对比例与实施例1的区别在于,取消保温涂层制备步骤。
性能检测
对实施例1-4、对比例1-3制备的面料成品,进行保暖率、克罗值、断裂强度和断裂伸长率的检测;其中,保暖率的检测标准为GB/T 11048-2008,克罗值的检测标准为GB/T11048-2008,断裂强度和断裂伸长率的检测标准为GB/T24218.18-2014,具体检测结果见下表:
从上表可以看出,本发明利用废旧纺织品制造的隔热保温面料,保暖率、克罗值、断裂强度、断裂伸长率优良,说明隔热保温性能、力学性能优异,适合进一步制作成防风抗寒保暖服装。对比例1由于取消杀菌消毒步骤,导致废旧纺织品内的细菌病毒没有完全杀灭,影响再生聚酯纤维和再生聚丙烯纤维的纯度,隔热保温性能、力学性能均有所下降;对比例2由于混纺时未添加保温纤维,无法发挥疏水修饰的海泡石纤维复合凝胶的隔热绝缘、阻断热对流和热传导的作用,导致保暖率、克罗值下降显著;对比例3由于取消保温涂层制备步骤,使得在隔热保温面料半成品的外表面没有形成多孔低导热并能阻止热传导的保温涂层,保暖率和克罗值明显降低。
以上内容仅仅是对本发明结构所做的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离发明的结构或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。
在本说明书的描述中,参考术语“一个实施例”、“示例”、“具体示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
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的具体实施方式。显然,根据本说明书的内容,可做很多的修改和变化。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.利用废旧纺织品制造隔热保温面料的方法,其特征在于,包括以下步骤:
S1、清洗除污:选取含有聚酯纤维与聚丙烯纤维的废旧纺织品,依次通过乙醇溶液清洗、蒸馏水清洗、碳酸钾溶液清洗、丙酮清洗,过滤,75~90℃干燥得到除污纺织品;其中,乙醇溶液的浓度为70~85vt%,碳酸钾溶液的浓度为0.6~1.5mol/L;
S2、杀菌消毒:将除污纺织品浸渍于65~76℃的杀菌液内浸渍处理40~60min,晾干得到无菌纺织品;
S3、开松除磁:将无菌纺织品粉碎成长2~6cm、宽1~3cm的小块,再通入开松机内开松除磁得到开松混合纤维;
S4、分选:将开松混合纤维根据密度分选得到再生聚酯纤维和再生聚丙烯纤维;
S5、混纺:根据纱线单支数73/1,捻度780捻/m,捻向Z;股纱72/2,捻度820捻/m,捻向S;按照重量百分比,将60wt%的再生聚酯纤维、30wt%的再生聚丙烯纤维和10wt%的保温纤维按照混条、针梳、粗纱、细纱、自动络筒、并线、倍捻、络筒、蒸纱的工序得到混纺纱线;
S6、织造后处理:将混纺纱线按照经密305~320根/10cm、纬密260~280根/10cm、厚度0.3~0.5mm织造得到织造面料;织造面料经烧毛、烘干、热定型得到隔热保温面料半成品;
S7、保温涂层制备:采用丝网印刷方式将保温涂层料印刷在隔热保温面料半成品的外表面,120~130℃下烘烤30~40min形成保温涂层。
2.根据权利要求1所述的利用废旧纺织品制造隔热保温面料的方法,其特征在于,所述保温纤维的制备方法包括以下步骤:
步骤一,将海泡石纤维浸泡于去离子水中,超声波搅拌10~20分钟,过80目筛网,干燥得到含湿量小于0.5%的预处理海泡石纤维;将正硅酸乙酯加入三口烧瓶内,加入乙醇、水、2~5wt%的盐酸溶液,400~550rpm转速搅拌均匀得到混合液,混合液置于48~55℃下加热1~2小时,冷却至室温,置于-20~-10℃下真空冷冻2~3小时,冰水浴下加入0.1~0.3mol/L的氨水,得到二氧化硅溶胶;
步骤二,按照重量份,将15~26份预处理海泡石纤维与4~11份硅酸镁铝、0.5~3份聚丙烯酰胺分散剂、25~42份二氧化硅溶胶加入搅拌机中,混合均匀后超声分散3~8min,真空抽滤得到湿凝胶纤维;
步骤三,将湿凝胶纤维浸泡于乙醇溶液中,62~76℃下加热陈化1~2小时,抽滤后加入环己烷、三乙胺和甲基硅醇钠,升温至72~85℃,保温加热1~2小时,抽滤,采用乙醇浸泡20~30min,减压抽滤,85~95℃加热30~40min得到保温纤维。
3.根据权利要求2所述的利用废旧纺织品制造隔热保温面料的方法,其特征在于,步骤一正硅酸乙酯、乙醇、盐酸溶液、氨水的体积比为1~2:3~5:0.8~1.5:0.2~0.5;步骤三环己烷、三乙胺和甲基硅醇钠的体积比为30~42:3~6:2~5,湿凝胶纤维与环己烷的用量比为3~5g:3~4mL。
4.根据权利要求1所述的利用废旧纺织品制造隔热保温面料的方法,其特征在于,所述保温涂层料的制备方法包括以下步骤:按照重量份,将32~50份保温环氧树脂、6~13份二氧化硅气凝胶微粉、2~6份缩水甘油醚、5~11份N,N-二甲基苄胺、0.8~2份羧甲基纤维素钠、0.3~0.9份双氨丙基聚二甲基硅氧烷、35~58份水混合均匀,加热至75~90℃,保温搅拌30min即可。
5.根据权利要求4所述的利用废旧纺织品制造隔热保温面料的方法,其特征在于,所述保温环氧树脂的环氧当量为210~240g/eq,粘度为1200~1400Pa·s;二氧化硅气凝胶微粉的导热系数为0.016w/m·K,密度为60kg/m3,憎水率为99.2%,比表面积为800m2/g。
6.根据权利要求1所述的利用废旧纺织品制造隔热保温面料的方法,其特征在于,杀菌液由以下重量份的成分混合而成:15~28份羧甲基壳聚糖、6~15份硬脂酸钙和30~55份水。
7.根据权利要求1所述的利用废旧纺织品制造隔热保温面料的方法,其特征在于,步骤S6烘干温度为120℃,烘干时间为40min,热定型温度为180℃。
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