CN110029490A - 一种防污耐腐蚀桌布材料的制备方法 - Google Patents
一种防污耐腐蚀桌布材料的制备方法 Download PDFInfo
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Abstract
本发明涉及一种防污耐腐蚀桌布材料的制备方法,属于家居材料技术领域。本发明通过在芳砜纶纤维针刺非织造布附着疏水纳米粉末,并通过添加乙烯基三甲氧基硅烷、硬脂酸,制备防污耐腐蚀桌布材料,疏水纳米粉末是由纳米二氧化硅和纳米氧化铝组成,纳米二氧化硅和纳米氧化铝上的羟基基团能与聚乙烯亚胺中的氨基基团反应,通过氢键和范德华力作用,芳砜纶纤维针刺非织造布表面会吸附一层聚乙烯亚胺单分子层,在二环己基碳化二亚胺作用下,硬脂酸能与聚乙烯亚胺进行脱水缩合反应,进一步接枝上长碳链,从而在纳米二氧化硅和纳米氧化铝表面生长上一层具有疏水作用的长碳链分子,从而提高芳砜纶纤维针刺非织造布的疏水性和自清洁能力。
Description
技术领域
本发明涉及一种防污耐腐蚀桌布材料的制备方法,属于家居材料技术领域。
背景技术
城乡居民消费水平越高,则消费预期越高。随着国内城乡居民可支配收入持续增长,消费者对桌布的产品预期也水涨船高,当前桌布市场环境正在从“实用型”往“装饰型”的方向转变,桌布市场面临产品层级的分化,中高档产品将成为市场主流。
同时桌布市场消费预期的不断升高,中高档家居品类消费的越来越普遍,传统桌布低质、无设计、无品牌的产品类型将被逐渐淘汰。中高档、品牌类桌布产品将逐渐占据市场主流地位。
台布是家庭中的常用品,作为茶几的装饰,或者饭桌上的铺垫;在酒店宾馆行业更为常用,可以作为餐桌的铺垫,家具的装饰。塑料台布具有颜色和花型多样,易搭配多种装修风格,是软装潢不错的选择。这款桌布耐脏,易清洗,易携带。使用寿命长,不易褪色、掉色。台布早在欧美国家非常流行,近年来在我国因其价廉物美的特性也受到众多家庭的欢迎。
目前现有的桌布的种类很多,有布艺类、PVC类、软玻璃类等,布艺类的桌布花型多元化,材质繁多,应有尽有,但是价位落差大,可比性不强,且布艺的桌布除了方便打理清洗,高档面料除了显得高大上之外,防水防油防污性能都不具备,且洗涤后还易褪色;PVC类的桌布材质生硬,走的基本都是低端路线,价格便宜且使用周期短,只具备防水功能,一般一撕扯就破,经过一段周期后,面层必定有层滑溜溜的油质覆盖层,更无法起到防污的效果。软玻璃桌布与PVC雷同,除了具备防水特性外,因为粘附性很强,固防滑。同样无法做到长时间防油的效果,因为无法洗涤,也无法防污,弊端比较多,且还会热胀冷缩,时间久了会发黄,一旦泼上红酒及茶水后无法清理,不宜打理,使用周期短,并且因为粘附性强,一般铺在大理石台面上会有空气层,影响整体视觉效果。
常规的桌布通常由合成纤维制备而成,表面未经过涂层处理。在日常的使用中,在遇到醋酸、碱液、盐溶液的长时间腐蚀后,会产生破损现象,影响着桌布的正常使用。通常研究者较少对桌布进行特殊处理来增加桌布的耐腐蚀特性。如果对桌布的表层进行涂层处理,在涂层处理过后,用酸液或碱液对其进行长时间测试后具有较好的抗腐蚀的效果,会提高含有涂层的桌布的应用价值。
要解决的技术问题:普通的家庭用桌布的耐腐蚀效果较差,在长时间接触酸和碱后会产生严重腐蚀现象的问题。
发明内容
本发明所要解决的技术问题:针对常规的桌布在遇到醋酸、碱液、盐溶液的长时间腐蚀后,会产生破损现象,且防水防油性能差的问题,提供了一种防污耐腐蚀桌布材料的制备方法。
为解决上述技术问题,本发明采用的技术方案是:
(1)将疏水纳米混合粉末、聚乙二醇加入去离子水中,常温下以800~1200r/min转速搅拌40~60min,超声分散20~30min,得分散液;
(2)将盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺加入分散液中,常温下以300~400r/min转速搅拌混合1~2h,得混合分散液;
(4)将羧甲基纤维素、芳砜纶纤维针刺非织造布加入混合分散液中,在40~60℃水浴下以200~300r/min转速搅拌1~2h,保温浸泡10~12h,取出布,得改性芳砜纶纤维针刺非织造布;
(5)将改性芳砜纶纤维针刺非织造布用去离子水洗涤3~5次,再置于烘箱中在40~50℃的条件下干燥1~2h,常温冷却,得防污耐腐蚀桌布材料。
所述的芳砜纶纤维针刺非织造布、疏水纳米混合粉末、盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺、聚乙二醇、羧甲基纤维素、去离子水的重量份为60~80份芳砜纶纤维针刺非织造布、30~40份疏水纳米混合粉末、30~40份盐酸多巴胺、0.1~0.3份三羟甲基氨基甲烷、15~20份聚乙烯亚胺、6~8份聚乙二醇、3~4份羧甲基纤维素、120~160份去离子水。
步骤(1)所述的疏水纳米混合粉的具体制备步骤为:
(1)将硬脂酸加入无水乙醇中,常温下以200~240r/min转速搅拌10~15min,得硬脂酸乙醇溶液;
(2)将纳米二氧化硅粉末、纳米氧化铝粉末、乙烯基三甲氧基硅烷加入硬脂酸乙醇溶液中,在100~120℃的条件下以200~300r/min转速搅拌反应1~3h,常温冷却,得混合反应液;
(3)将聚乙烯亚胺、二环己基碳化二亚胺加入混合反应液中,在60~80℃的水浴条件下以300~400r/min转速搅拌30~40min,保温静置20~24h,得混合液;
(4)将混合液置于离心机中常温下以4000~5000r/min转速离心分离10~20min,取下层固体,用无水乙醇洗涤3~5次,再用去离子水洗涤1~3次,常温静置干燥,得疏水纳米混合粉末。
所述的纳米二氧化硅粉末、纳米氧化铝粉末、硬脂酸、乙烯基三甲氧基硅烷、聚乙烯亚胺、二环己基碳化二亚胺、无水乙醇的重量份为20~30份纳米二氧化硅粉末、20~30份纳米氧化铝粉末、8~10份硬脂酸、1~3份乙烯基三甲氧基硅烷、6~8份聚乙烯亚胺、8~10份二环己基碳化二亚胺、120~180份无水乙醇。
步骤(2)所述的纳米氧化铝粉末的具体制备步骤为:
(1)将硫酸铝加入去离子水中,常温以100~150r/min转速搅拌10~15min,得硫酸铝溶液;
(2)将聚丙烯酰胺加入硫酸铝溶液中,常温下以200~240r/min转速搅拌15~20min,得硫酸铝反应液;
(3)将碳酸铵溶液以10~20mL/min的流速缓慢加入至硫酸铝反应液中,在60~80℃的水浴条件下以600~800r/min转速剧烈搅拌2~4h,保温静置10~12h,得反应物;
(4)将反应物用质量浓度50%的乙醇溶液洗涤2~3次,置于烘箱中在80~100℃的条件下干燥1~2h,再置于马弗炉中在1000~1200℃的条件下煅烧2~4,常温冷却,得纳米氧化铝粉体。
所述的硫酸铝、碳酸铵溶液、聚丙烯酰胺、去离子水的重量份为40~50份硫酸铝、20~30份质量浓度10%的碳酸铵溶液、1~3份聚丙烯酰胺、80~100份去离子水。
步骤(4)所述的纳米氧化铝粉体的平均粒径为60~80nm。
步骤(2)所述的纳米二氧化硅粉末的具体制备步骤为:
(1)将无水乙醇加入去离子水中,常温下以120~140r/min转速搅拌5~10min,得乙醇溶液;
(2)将氨水加入乙醇溶液中,在40~50℃的水浴条件下以200~220r/min转速搅拌10~15min,保温,得反应溶液;
(3)将正硅酸乙酯以40~60mL/min的流速均匀加入反应溶液中,在40~50℃的水浴条件下以240~280r/min转速搅拌反应2~4h,得反应产物;
(4),将反应产物置于离心机中常温下以3500~4000r/min转速离心分离10~15min,取下层,得固体沉积物;
(5)将固体沉积物用无水乙醇清洗3~5次,再用去离子水清洗3~5次,置于烘箱中在120~140℃的条件下干燥4~6h,得纳米二氧化硅粉体。
所述的正硅酸乙酯、氨水、无水乙醇、去离子水的重量份为40~50份正硅酸乙酯、20~30份质量浓度1%的氨水、30~40份无水乙醇、60~80份去离子水。
步骤(5)所述的纳米二氧化硅粉体的平均粒径为60~80nm。
本发明与其他方法相比,有益技术效果是:
(1)本发明以芳砜纶纤维针刺非织造布为基材,制备防污耐腐蚀桌布材料,芳砜纶纤维由对位二氨基二苯砜、间位二氨基二苯砜和对苯二甲酰氯的缩聚物制成,其主要特点是具有优异的耐热性、热稳定性、高温尺寸稳定性和阻燃性,而且绝缘性高,耐化学稳定性好,在常温下对化学品均有优良的稳定性,同时还具有良好的物理机械性能和染色性能,芳砜纶纤维的分子结构由酰胺基、砜基和苯环键连接而成,芳砜纶纤维的纤维分子链上引入对苯结构和砜基,使酰胺基和砜基相互连接对位苯基和间位苯基构成线型大分子,由于高分子主链上存在强吸电子的砜基基团,硫原子又处于最高氧化状态,并且大分子链上的苯环含量较高,沿着大分子链段产生的π电子和ρ电子的非定域作用使得苯环的双键共轭作用增强,酰胺基上氮原子的电子云密度明显降低,而且芳砜纶纤维的分子结构规整、稳定,在高温环境中不易被破坏,因此以芳砜纶纤维针刺非织造布制备的桌布材料具有优异的耐热性和耐腐蚀性;
(2)本发明通过在芳砜纶纤维针刺非织造布附着疏水纳米粉末,并通过添加乙烯基三甲氧基硅烷、硬脂酸,制备防污耐腐蚀桌布材料,疏水纳米粉末是由纳米二氧化硅和纳米氧化铝组成,纳米二氧化硅无定形结构,以Si原子为中心,O原子为顶点所形成的四面体不规则堆积而形成,其表面上的Si原子无规则排列,连在Si原子上的羟基非等距,参与化学反应时也不完全等价,纳米二氧化硅呈半透明状,是一种白色、无毒、无定形微细粉状物,其化学性质稳定,耐高温,不燃,无味,具有较好的电绝缘性,纳米二氧化硅具有以下特性:多孔性、比表面积大、高分散性、质轻、化学稳定性好、耐高温、不燃烧、触变性、消光性、亲水性、绝缘性等性能,二氧化硅能与乙烯基三甲氧基硅烷结合成稳定Si-O-Si化学键,可显著提高芳砜纶纤维针刺非织造布的补强性能,纳米二氧化硅和纳米氧化铝上的羟基基团能与聚乙烯亚胺中的氨基基团反应,通过氢键和范德华力作用,芳砜纶纤维针刺非织造布表面会吸附一层聚乙烯亚胺单分子层,在二环己基碳化二亚胺作用下,硬脂酸能与聚乙烯亚胺进行脱水缩合反应,进一步接枝上长碳链,从而在纳米二氧化硅和纳米氧化铝表面生长上一层具有疏水作用的长碳链分子,从而提高芳砜纶纤维针刺非织造布的疏水性和自清洁能力。
具体实施方式
按重量份数计,分别称量40~50份正硅酸乙酯、20~30份质量浓度1%的氨水、30~40份无水乙醇、60~80份去离子水,将无水乙醇加入去离子水中,常温下以120~140r/min转速搅拌5~10min,得乙醇溶液,将氨水加入乙醇溶液中,在40~50℃的水浴条件下以200~220r/min转速搅拌10~15min,保温,得反应溶液,将正硅酸乙酯以40~60mL/min的流速均匀加入反应溶液中,在40~50℃的水浴条件下以240~280r/min转速搅拌反应2~4h,得反应产物,将反应产物置于离心机中常温下以3500~4000r/min转速离心分离10~15min,取下层,得固体沉积物,将固体沉积物用无水乙醇清洗3~5次,再用去离子水清洗3~5次,置于烘箱中在120~140℃的条件下干燥4~6h,得平均粒径60~80nm的纳米二氧化硅粉体,再按重量份数计,分别称量40~50份硫酸铝、20~30份质量浓度10%的碳酸铵溶液、1~3份聚丙烯酰胺、80~100份去离子水,将硫酸铝加入去离子水中,常温以100~150r/min转速搅拌10~15min,得硫酸铝溶液,将聚丙烯酰胺加入硫酸铝溶液中,常温下以200~240r/min转速搅拌15~20min,得硫酸铝反应液,将碳酸铵溶液以10~20mL/min的流速缓慢加入至硫酸铝反应液中,在60~80℃的水浴条件下以600~800r/min转速剧烈搅拌2~4h,保温静置10~12h,得反应物,将反应物用质量浓度50%的乙醇溶液洗涤2~3次,置于烘箱中在80~100℃的条件下干燥1~2h,再置于马弗炉中在1000~1200℃的条件下煅烧2~4h,常温冷却,得平均粒径60~80nm的纳米氧化铝粉体,再按重量份数计,分别称量20~30份纳米二氧化硅粉末、20~30份纳米氧化铝粉末、8~10份硬脂酸、1~3份乙烯基三甲氧基硅烷、6~8份聚乙烯亚胺、8~10份二环己基碳化二亚胺、120~180份无水乙醇,将硬脂酸加入无水乙醇中,常温下以200~240r/min转速搅拌10~15min,得硬脂酸乙醇溶液,将纳米二氧化硅粉末、纳米氧化铝粉末、乙烯基三甲氧基硅烷加入硬脂酸乙醇溶液中,在100~120℃的条件下以200~300r/min转速搅拌反应1~3h,常温冷却,得混合反应液,将聚乙烯亚胺、二环己基碳化二亚胺加入混合反应液中,在60~80℃的水浴条件下以300~400r/min转速搅拌30~40min,保温静置20~24h,得混合液,将混合液置于离心机中常温下以4000~5000r/min转速离心分离10~20min,取下层固体,用无水乙醇洗涤3~5次,再用去离子水洗涤1~3次,常温静置干燥,得疏水纳米混合粉末,再按重量份数计,分别称量60~80份芳砜纶纤维针刺非织造布、30~40份疏水纳米混合粉末、30~40份盐酸多巴胺、0.1~0.3份三羟甲基氨基甲烷、15~20份聚乙烯亚胺、6~8份聚乙二醇、3~4份羧甲基纤维素、120~160份去离子水,将疏水纳米混合粉末、聚乙二醇加入去离子水中,常温下以800~1200r/min转速搅拌40~60min,超声分散20~30min,得分散液,将盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺加入分散液中,常温下以300~400r/min转速搅拌混合1~2h,得混合分散液,将羧甲基纤维素、芳砜纶纤维针刺非织造布加入混合分散液中,在40~60℃水浴下以200~300r/min转速搅拌1~2h,保温浸泡10~12h,取出布,得改性芳砜纶纤维针刺非织造布,将改性芳砜纶纤维针刺非织造布用去离子水洗涤3~5次,再置于烘箱中在40~50℃的条件下干燥1~2h,常温冷却,得防污耐腐蚀桌布材料。
实施例1
按重量份数计,分别称量40份正硅酸乙酯、20份质量浓度1%的氨水、30份无水乙醇、60份去离子水,将无水乙醇加入去离子水中,常温下以120r/min转速搅拌5min,得乙醇溶液,将氨水加入乙醇溶液中,在40℃的水浴条件下以200r/min转速搅拌10min,保温,得反应溶液,将正硅酸乙酯以40mL/min的流速均匀加入反应溶液中,在40℃的水浴条件下以240r/min转速搅拌反应2h,得反应产物,将反应产物置于离心机中常温下以3500r/min转速离心分离10min,取下层,得固体沉积物,将固体沉积物用无水乙醇清洗3次,再用去离子水清洗3次,置于烘箱中在120℃的条件下干燥4h,得平均粒径60nm的纳米二氧化硅粉体,再按重量份数计,分别称量40份硫酸铝、20份质量浓度10%的碳酸铵溶液、1份聚丙烯酰胺、80份去离子水,将硫酸铝加入去离子水中,常温以100r/min转速搅拌10min,得硫酸铝溶液,将聚丙烯酰胺加入硫酸铝溶液中,常温下以200r/min转速搅拌15min,得硫酸铝反应液,将碳酸铵溶液以10mL/min的流速缓慢加入至硫酸铝反应液中,在60℃的水浴条件下以600r/min转速剧烈搅拌2h,保温静置10h,得反应物,将反应物用质量浓度50%的乙醇溶液洗涤2次,置于烘箱中在80℃的条件下干燥1h,再置于马弗炉中在1000℃的条件下煅烧2,常温冷却,得平均粒径60nm的纳米氧化铝粉体,再按重量份数计,分别称量20份纳米二氧化硅粉末、20份纳米氧化铝粉末、8份硬脂酸、1份乙烯基三甲氧基硅烷、6份聚乙烯亚胺、8份二环己基碳化二亚胺、120份无水乙醇,将硬脂酸加入无水乙醇中,常温下以200r/min转速搅拌10min,得硬脂酸乙醇溶液,将纳米二氧化硅粉末、纳米氧化铝粉末、乙烯基三甲氧基硅烷加入硬脂酸乙醇溶液中,在100℃的条件下以200r/min转速搅拌反应1h,常温冷却,得混合反应液,将聚乙烯亚胺、二环己基碳化二亚胺加入混合反应液中,在60℃的水浴条件下以300r/min转速搅拌30min,保温静置20h,得混合液,将混合液置于离心机中常温下以4000r/min转速离心分离10min,取下层固体,用无水乙醇洗涤3次,再用去离子水洗涤1次,常温静置干燥,得疏水纳米混合粉末,再按重量份数计,分别称量60份芳砜纶纤维针刺非织造布、30份疏水纳米混合粉末、30份盐酸多巴胺、0.1份三羟甲基氨基甲烷、15份聚乙烯亚胺、6份聚乙二醇、3份羧甲基纤维素、120份去离子水,将疏水纳米混合粉末、聚乙二醇加入去离子水中,常温下以800r/min转速搅拌40min,超声分散20min,得分散液,将盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺加入分散液中,常温下以300r/min转速搅拌混合1h,得混合分散液,将羧甲基纤维素、芳砜纶纤维针刺非织造布加入混合分散液中,在40℃水浴下以200r/min转速搅拌1h,保温浸泡10h,取出布,得改性芳砜纶纤维针刺非织造布,将改性芳砜纶纤维针刺非织造布用去离子水洗涤3次,再置于烘箱中在40℃的条件下干燥1h,常温冷却,得防污耐腐蚀桌布材料。
实施例2
按重量份数计,分别称量45份正硅酸乙酯、25份质量浓度1%的氨水、35份无水乙醇、70份去离子水,将无水乙醇加入去离子水中,常温下以130r/min转速搅拌7min,得乙醇溶液,将氨水加入乙醇溶液中,在45℃的水浴条件下以210r/min转速搅拌13min,保温,得反应溶液,将正硅酸乙酯以50mL/min的流速均匀加入反应溶液中,在45℃的水浴条件下以260r/min转速搅拌反应3h,得反应产物,将反应产物置于离心机中常温下以3750r/min转速离心分离13min,取下层,得固体沉积物,将固体沉积物用无水乙醇清洗4次,再用去离子水清洗4次,置于烘箱中在130℃的条件下干燥5h,得平均粒径70nm的纳米二氧化硅粉体,再按重量份数计,分别称量45份硫酸铝、25份质量浓度10%的碳酸铵溶液、2份聚丙烯酰胺、90份去离子水,将硫酸铝加入去离子水中,常温以125r/min转速搅拌13min,得硫酸铝溶液,将聚丙烯酰胺加入硫酸铝溶液中,常温下以220r/min转速搅拌17min,得硫酸铝反应液,将碳酸铵溶液以15mL/min的流速缓慢加入至硫酸铝反应液中,在70℃的水浴条件下以700r/min转速剧烈搅拌3h,保温静置11h,得反应物,将反应物用质量浓度50%的乙醇溶液洗涤2次,置于烘箱中在90℃的条件下干燥1.5h,再置于马弗炉中在1100℃的条件下煅烧3h,常温冷却,得平均粒径70nm的纳米氧化铝粉体,再按重量份数计,分别称量25份纳米二氧化硅粉末、25份纳米氧化铝粉末、9份硬脂酸、2份乙烯基三甲氧基硅烷、7份聚乙烯亚胺、9份二环己基碳化二亚胺、150份无水乙醇,将硬脂酸加入无水乙醇中,常温下以220r/min转速搅拌13min,得硬脂酸乙醇溶液,将纳米二氧化硅粉末、纳米氧化铝粉末、乙烯基三甲氧基硅烷加入硬脂酸乙醇溶液中,在110℃的条件下以250r/min转速搅拌反应2h,常温冷却,得混合反应液,将聚乙烯亚胺、二环己基碳化二亚胺加入混合反应液中,在70℃的水浴条件下以350r/min转速搅拌35min,保温静置22h,得混合液,将混合液置于离心机中常温下以4500r/min转速离心分离15min,取下层固体,用无水乙醇洗涤4次,再用去离子水洗涤2次,常温静置干燥,得疏水纳米混合粉末,再按重量份数计,分别称量70份芳砜纶纤维针刺非织造布、35份疏水纳米混合粉末、35份盐酸多巴胺、0.2份三羟甲基氨基甲烷、17份聚乙烯亚胺、7份聚乙二醇、3.5份羧甲基纤维素、140份去离子水,将疏水纳米混合粉末、聚乙二醇加入去离子水中,常温下以1000r/min转速搅拌50min,超声分散25min,得分散液,将盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺加入分散液中,常温下以350r/min转速搅拌混合1.5h,得混合分散液,将羧甲基纤维素、芳砜纶纤维针刺非织造布加入混合分散液中,在50℃水浴下以250r/min转速搅拌1.5h,保温浸泡11h,取出布,得改性芳砜纶纤维针刺非织造布,将改性芳砜纶纤维针刺非织造布用去离子水洗涤4次,再置于烘箱中在45℃的条件下干燥1.5h,常温冷却,得防污耐腐蚀桌布材料。
实施例3
按重量份数计,分别称量50份正硅酸乙酯、30份质量浓度1%的氨水、40份无水乙醇、80份去离子水,将无水乙醇加入去离子水中,常温下以140r/min转速搅拌10min,得乙醇溶液,将氨水加入乙醇溶液中,在50℃的水浴条件下以220r/min转速搅拌15min,保温,得反应溶液,将正硅酸乙酯以60mL/min的流速均匀加入反应溶液中,在50℃的水浴条件下以280r/min转速搅拌反应4h,得反应产物,将反应产物置于离心机中常温下以4000r/min转速离心分离15min,取下层,得固体沉积物,将固体沉积物用无水乙醇清洗5次,再用去离子水清洗5次,置于烘箱中在140℃的条件下干燥6h,得平均粒径80nm的纳米二氧化硅粉体,再按重量份数计,分别称量50份硫酸铝、30份质量浓度10%的碳酸铵溶液、3份聚丙烯酰胺、100份去离子水,将硫酸铝加入去离子水中,常温以150r/min转速搅拌15min,得硫酸铝溶液,将聚丙烯酰胺加入硫酸铝溶液中,常温下以240r/min转速搅拌20min,得硫酸铝反应液,将碳酸铵溶液以20mL/min的流速缓慢加入至硫酸铝反应液中,在80℃的水浴条件下以800r/min转速剧烈搅拌4h,保温静置12h,得反应物,将反应物用质量浓度50%的乙醇溶液洗涤3次,置于烘箱中在100℃的条件下干燥2h,再置于马弗炉中在1200℃的条件下煅烧4h,常温冷却,得平均粒径80nm的纳米氧化铝粉体,再按重量份数计,分别称量30份纳米二氧化硅粉末、30份纳米氧化铝粉末、10份硬脂酸、3份乙烯基三甲氧基硅烷、8份聚乙烯亚胺、10份二环己基碳化二亚胺、180份无水乙醇,将硬脂酸加入无水乙醇中,常温下以240r/min转速搅拌15min,得硬脂酸乙醇溶液,将纳米二氧化硅粉末、纳米氧化铝粉末、乙烯基三甲氧基硅烷加入硬脂酸乙醇溶液中,在120℃的条件下以300r/min转速搅拌反应3h,常温冷却,得混合反应液,将聚乙烯亚胺、二环己基碳化二亚胺加入混合反应液中,在80℃的水浴条件下以400r/min转速搅拌40min,保温静置24h,得混合液,将混合液置于离心机中常温下以5000r/min转速离心分离20min,取下层固体,用无水乙醇洗涤5次,再用去离子水洗涤3次,常温静置干燥,得疏水纳米混合粉末,再按重量份数计,分别称量80份芳砜纶纤维针刺非织造布、40份疏水纳米混合粉末、40份盐酸多巴胺、0.3份三羟甲基氨基甲烷、20份聚乙烯亚胺、8份聚乙二醇、4份羧甲基纤维素、160份去离子水,将疏水纳米混合粉末、聚乙二醇加入去离子水中,常温下以1200r/min转速搅拌60min,超声分散30min,得分散液,将盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺加入分散液中,常温下以400r/min转速搅拌混合2h,得混合分散液,将羧甲基纤维素、芳砜纶纤维针刺非织造布加入混合分散液中,在60℃水浴下以300r/min转速搅拌2h,保温浸泡12h,取出布,得改性芳砜纶纤维针刺非织造布,将改性芳砜纶纤维针刺非织造布用去离子水洗涤5次,再置于烘箱中在50℃的条件下干燥2h,常温冷却,得防污耐腐蚀桌布材料。
将本发明制备的防污耐腐蚀桌布材料进行检测,具体检测结果如下:
耐腐蚀性能测试:将实施例1、实施例2、实施例3的桌布分别放入30wt%的醋酸溶液放置10天、30天、50天,分别放入40wt%的碳酸钠溶液浸泡30天、50天、70天,放入30wt%的氯化钠溶液浸泡40天、50天、60天。
抗污性能测试:用圆珠笔在所得桌布上涂画后,用干布直接擦拭,观察是否能完全清除污渍。
表1防污耐腐蚀桌布材料性能表征
由表1可知本发明制备的防污耐腐蚀桌布材料,具有较好得到耐腐蚀性能,且抗污性能好,可长期使用。
Claims (10)
1.一种防污耐腐蚀桌布材料的制备方法,其特征在于,具体制备步骤为:
(1)将疏水纳米混合粉末、聚乙二醇加入去离子水中,常温下以800~1200r/min转速搅拌40~60min,超声分散20~30min,得分散液;
(2)将盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺加入分散液中,常温下以300~400r/min转速搅拌混合1~2h,得混合分散液;
(4)将羧甲基纤维素、芳砜纶纤维针刺非织造布加入混合分散液中,在40~60℃水浴下以200~300r/min转速搅拌1~2h,保温浸泡10~12h,取出布,得改性芳砜纶纤维针刺非织造布;
(5)将改性芳砜纶纤维针刺非织造布用去离子水洗涤3~5次,再置于烘箱中在40~50℃的条件下干燥 1~2h,常温冷却,得防污耐腐蚀桌布材料。
2.根据权利要求1所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,所述的芳砜纶纤维针刺非织造布、疏水纳米混合粉末、盐酸多巴胺、三羟甲基氨基甲烷、聚乙烯亚胺、聚乙二醇、羧甲基纤维素、去离子水的重量份为60~80份芳砜纶纤维针刺非织造布、30~40份疏水纳米混合粉末、30~40份盐酸多巴胺、0.1~0.3份三羟甲基氨基甲烷、15~20份聚乙烯亚胺、6~8份聚乙二醇、3~4份羧甲基纤维素、120~160份去离子水。
3.根据权利要求1所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,步骤(1)所述的疏水纳米混合粉的具体制备步骤为:
(1)将硬脂酸加入无水乙醇中,常温下以200~240r/min转速搅拌10~15min,得硬脂酸乙醇溶液;
(2)将纳米二氧化硅粉末、纳米氧化铝粉末、乙烯基三甲氧基硅烷加入硬脂酸乙醇溶液中,在100~120℃的条件下以200~300r/min转速搅拌反应1~3h,常温冷却,得混合反应液;
(3)将聚乙烯亚胺、二环己基碳化二亚胺加入混合反应液中,在60~80℃的水浴条件下以300~400r/min转速搅拌30~40min,保温静置20~24h,得混合液;
(4)将混合液置于离心机中常温下以4000~5000r/min转速离心分离10~20min,取下层固体,用无水乙醇洗涤3~5次,再用去离子水洗涤1~3次,常温静置干燥,得疏水纳米混合粉末。
4.根据权利要求3所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,所述的纳米二氧化硅粉末、纳米氧化铝粉末、硬脂酸、乙烯基三甲氧基硅烷、聚乙烯亚胺、二环己基碳化二亚胺、无水乙醇的重量份为20~30份纳米二氧化硅粉末、20~30份纳米氧化铝粉末、8~10份硬脂酸、1~3份乙烯基三甲氧基硅烷、6~8份聚乙烯亚胺、8~10份二环己基碳化二亚胺、120~180份无水乙醇。
5.根据权利要求3所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,步骤(2)所述的纳米氧化铝粉末的具体制备步骤为:
(1)将硫酸铝加入去离子水中,常温以100~150r/min转速搅拌10~15min,得硫酸铝溶液;
(2)将聚丙烯酰胺加入硫酸铝溶液中,常温下以200~240r/min转速搅拌15~20min,得硫酸铝反应液;
(3)将碳酸铵溶液以10~20mL/min的流速缓慢加入至硫酸铝反应液中,在60~80 ℃的水浴条件下以600~800r/min转速剧烈搅拌2~4h,保温静置10~12 h,得反应物;
(4)将反应物用质量浓度50%的乙醇溶液洗涤2~3次,置于烘箱中在80~100 ℃的条件下干燥1~2h,再置于马弗炉中在1000~1200 ℃的条件下煅烧2~4,常温冷却,得纳米氧化铝粉体。
6.根据权利要求5所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,所述的硫酸铝、碳酸铵溶液、聚丙烯酰胺、去离子水的重量份为40~50份硫酸铝、20~30份质量浓度10%的碳酸铵溶液、1~3份聚丙烯酰胺、80~100份去离子水。
7.根据权利要求5所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,步骤(4)所述的纳米氧化铝粉体的平均粒径为60~80nm。
8.根据权利要求3所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,步骤(2)所述的纳米二氧化硅粉末的具体制备步骤为:
(1)将无水乙醇加入去离子水中,常温下以120~140r/min转速搅拌5~10min,得乙醇溶液;
(2)将氨水加入乙醇溶液中,在40~50℃的水浴条件下以200~220r/min转速搅拌10~15min,保温,得反应溶液;
(3)将正硅酸乙酯以40~60mL/min的流速均匀加入反应溶液中,在40~50℃的水浴条件下以240~280r/min转速搅拌反应2~4h,得反应产物;
(4),将反应产物置于离心机中常温下以3500~4000r/min转速离心分离10~15min,取下层,得固体沉积物;
(5)将固体沉积物用无水乙醇清洗3~5次,再用去离子水清洗3~5次,置于烘箱中在120~140℃的条件下干燥4~6h,得纳米二氧化硅粉体。
9.根据权利要求8所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,所述的正硅酸乙酯、氨水、无水乙醇、去离子水的重量份为40~50份正硅酸乙酯、20~30份质量浓度1%的氨水、30~40份无水乙醇、60~80份去离子水。
10.根据权利要求8所述的一种防污耐腐蚀桌布材料的制备方法,其特征在于,步骤(5)所述的纳米二氧化硅粉体的平均粒径为60~80nm。
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