CN106189988A - 一种石墨烯改性胶液及其制备方法和用途 - Google Patents

一种石墨烯改性胶液及其制备方法和用途 Download PDF

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CN106189988A
CN106189988A CN201610553982.6A CN201610553982A CN106189988A CN 106189988 A CN106189988 A CN 106189988A CN 201610553982 A CN201610553982 A CN 201610553982A CN 106189988 A CN106189988 A CN 106189988A
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polyurethane adhesive
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周新基
牛艳丰
蔡卫
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Jiangsu nine Jiangsu jiujiujiu Technology Co. Ltd.
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    • C09J11/04Non-macromolecular additives inorganic
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    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/04Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
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Abstract

本发明公开了一种石墨烯改性胶液及其制备方法和用途,主要由水基聚氨酯胶粘剂、石墨烯、分散剂组成;其中石墨烯的含量为水基聚氨酯胶粘剂重量的0.1%‑0.25%;分散剂的含量为胶粘剂重量的1%‑2.5%;所述水基聚氨酯胶粘剂的固含量为30%‑50%。本发明改性水基胶粘剂,能够有效改善粘合性能和热传导性能;制备方法简便可靠。

Description

一种石墨烯改性胶液及其制备方法和用途
技术领域
本发明涉及一种石墨烯改性胶液及其制备方法和用途。
背景技术
在利用超高分子量聚乙烯纤维生产无纬布的过程中,要用到水基聚氨酯胶黏剂,基于超高分子量聚乙烯的特性,纤维表面与胶粘剂的结合力较差,且聚氨酯胶的导热性能差,导热系数只有0.25左右。由超高分子量聚乙烯无纬布制成的防弹制品在进行测试时,纤维与胶粘剂结合力差导致纤维与胶剥离,从而导致其抗冲击性能变差;胶的导热性能差导致子弹冲击形成的大量热量由中心点向往传递速度慢,从而导致制品局部温度高、穿透概率高。设法提高胶粘剂与纤维间的结合力和制品的热传递速率,将有利于提高无纬布的抗冲击性能。
有研发人员从胶粘剂体系着手,通过在水基胶粘剂体系中加入一定量的助溶剂来提高粘合效果,但由于助溶剂一般是有机溶剂,不仅恶化了生产环境,而且制品中的微量残留对人体有害,最好是体系中有机溶剂含量为零。也有研发人员通过辐射或低温等离子处理等方式来改变纤维表面的惰性,提高其与胶粘剂的粘合力,但这种处理方式的效果有限、不均匀,且持续性短,要求在表面处理完之后立即进行涂胶工艺,工业化实施比较困难。
发明内容
本发明的目的在于提供一种能够有效改善粘合性能和热传导性能的石墨烯改性胶液及其制备方法和用途。
本发明的技术解决方案是:
一种石墨烯改性胶液,其特征是:主要由水基聚氨酯胶粘剂、石墨烯、分散剂组成;其中石墨烯的含量为水基聚氨酯胶粘剂重量的0.1%-0.25%,优选0.15%-0.2%;分散剂的含量为胶粘剂重量的1%-2.5%,优选1.5%-2%;所述水基聚氨酯胶粘剂的固含量为30%-50%,优选40-50%。
所述水基聚氨酯胶粘剂的PH值为7-10,优选7-8。
所述石墨烯粒径分布D50≦10um,PH值7-8,灰分≦1.0%,导热系数大于5000w/m.k。
所述分散剂为聚乙烯吡咯烷酮、十二烷基苯磺酸钠、聚乙烯醇中的一种。
一种石墨烯改性胶液的制备方法,其特征是:包括下列步骤:
(1)制备石墨烯粉末的水分散液:将石墨烯粉末投入到去离子水中,并加入分散剂,开始搅拌;搅拌转速1000rpm,搅拌时间一个小时;
(2)取水基聚氨酯胶粘剂,用搅拌装置缓慢搅拌,搅拌转速不高于60rpm;
(3)将搅拌好的石墨烯水分散液,加入到处于搅拌状态中的聚氨酯胶粘剂中,加完后继续搅拌30min以上;
(4)将混合好的胶粘剂连同容器放入到超声波装置中,超声震荡60min以上,超声波功率不低于3KW;超声处理后的胶粘剂,静置48小时;然后去除容器底部的沉淀物,只收取上层均匀的乳液,获得石墨烯改性水基聚氨酯胶粘剂。
所述的石墨烯改性胶液在制备无纺布中的应用。
本发明改性水基胶粘剂,能够有效改善粘合性能和热传导性能;制备方法简便可靠。
下面结合实施例对本发明作进一步说明。
具体实施方式
实施例1:
配制改性胶液
以市售的AT-06型号、固含量45%的水基聚氨酯胶粘剂400g做基料来配制改性胶液。先取0.8g石墨烯粉末和8g聚乙烯吡咯烷酮投入到160g的去离子水中,高速搅拌60min,搅拌转速1000rpm。将水基聚氨酯胶粘剂基料放到搅拌装置上进行缓慢搅拌,搅拌转速40rpm。将分散好的石墨烯水分散液,逐步加入到搅拌中的胶粘剂基料中,加完后继续搅拌60min。然后将搅拌均匀的混合液连带容器放置到功率3kw的超声波发生器中,超声震荡60min,取出静置48小时。最后过滤掉容器底部的沉淀物,留取上部混合均匀的乳液,获得石墨烯改性聚氨酯胶粘剂。
用配制的改性胶液制备无纬布,做成靶片打靶测试。对比常规聚氨酯胶粘剂
利用上述配制的石墨烯改性水基聚氨酯胶粘剂和超高分子量聚乙烯纤维(江苏九九久生产,400D/240F,强度34cN/dtex,模量1300cN/dtex),在间歇式的无纬布生产机上,制作了面密度160g/m2左右、胶含量20%~21%的双经双纬结构无纬布3张(每张1.6m*3.2m),将该无纬布裁切成40cm*40cm大小,并通过叠层配成总面密度6.4kg/m2左右的测试靶片2个(每个靶片40层无纬布),编号为1#和2#。
利用未经改性的常规AT-06型号水基聚氨酯胶粘剂和上述同样规格的超高分子量聚乙烯纤维,在无纬布生产机上制做对比用无纬布,面密度160g/m2左右,胶含量20%~21%,结构为双经双纬,同样配制2个总体面密度6.4kg/m2左右的测试靶片,编号为3#和4#。
将上述4个测试靶片在同样的条件下进行打靶测试,测试所用的枪械为54手枪,子弹为51式7.62mm铅心弹,弹速455±5 m/s,每个靶片测试6枪,最后对比4个靶片测试后被6发子弹穿透的平均层数。
从平均穿透层数看,基于石墨烯改性胶粘剂制备的2个靶片的平均穿透层数为11.5和10.7,平均11.1层;基于常规胶粘剂制备的2个靶片平均穿透层数分别为13.5和13.2,平均13.3层;改性后的胶粘剂使得同等测试条件下平均穿透层数减少2层,意味着防弹制品在具有相同防护能力的情况可减重约16.5%。

Claims (6)

1.一种石墨烯改性胶液,其特征是:主要由水基聚氨酯胶粘剂、石墨烯、分散剂组成;其中石墨烯的含量为水基聚氨酯胶粘剂重量的0.1%-0.25%;分散剂的含量为胶粘剂重量的1%-2.5%;所述水基聚氨酯胶粘剂的固含量为30%-50%。
2.根据权利要求1所述的一种石墨烯改性胶液,其特征是:所述水基聚氨酯胶粘剂的PH值为7-10。
3.根据权利要求1所述的一种石墨烯改性胶液,其特征是:所述石墨烯粒径分布D50≦10um,PH值7-8,灰分≦1.0%,导热系数大于5000w/m.k。
4.根据权利要求1、2或3所述的一种石墨烯改性胶液,其特征是:所述分散剂为聚乙烯吡咯烷酮、十二烷基苯磺酸钠、聚乙烯醇中的一种。
5.一种权利要求1所述的石墨烯改性胶液的制备方法,其特征是:包括下列步骤:
(1)制备石墨烯粉末的水分散液:将石墨烯粉末投入到去离子水中,并加入分散剂,开始搅拌;搅拌转速1000rpm,搅拌时间一个小时;
(2)取水基聚氨酯胶粘剂,用搅拌装置缓慢搅拌,搅拌转速不高于60rpm;
(3)将搅拌好的石墨烯水分散液,加入到处于搅拌状态中的聚氨酯胶粘剂中,加完后继续搅拌30min以上;
(4)将混合好的胶粘剂连同容器放入到超声波装置中,超声震荡60min以上,超声波功率不低于3KW;超声处理后的胶粘剂,静置48小时;然后去除容器底部的沉淀物,只收取上层均匀的乳液,获得石墨烯改性水基聚氨酯胶粘剂。
6.一种权利要求1所述的石墨烯改性胶液在制备无纺布中的应用。
CN201610553982.6A 2016-07-14 2016-07-14 一种石墨烯改性胶液及其制备方法和用途 Pending CN106189988A (zh)

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CN109021907A (zh) * 2018-09-03 2018-12-18 孙桂芝 一种合成革用高粘结性水性聚氨酯粘合剂的制备方法
CN109370502A (zh) * 2018-10-19 2019-02-22 四川通国医药包装印刷有限公司 一种提高复合膜横向和纵向复合强度的方法
CN109554151A (zh) * 2018-10-23 2019-04-02 厦门韦尔通科技有限公司 一种适用于电子器件的胶黏剂及其制备方法
CN109628050A (zh) * 2018-10-23 2019-04-16 厦门韦尔通科技有限公司 一种耐阻燃的胶黏剂及其制备方法
CN109679536A (zh) * 2019-01-08 2019-04-26 德阳烯碳科技有限公司 一种超薄石墨烯导热胶层的制备方法
CN110157370A (zh) * 2019-05-14 2019-08-23 永隆高新科技(青岛)有限公司 一种封边用反应型聚氨酯热熔胶
CN112724908A (zh) * 2020-12-28 2021-04-30 江苏九九久特种纤维制品有限公司 一种气凝胶改性胶液及其制备方法
CN116970361A (zh) * 2023-08-04 2023-10-31 浙江映甫防护科技有限公司 一种水性聚氨酯胶体及其制备方法和水性聚氨酯胶体的应用

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CN105670270A (zh) * 2016-04-20 2016-06-15 青岛墨烯产业科技有限公司 一种石墨烯复合防弹材料的制备方法

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CN109554151A (zh) * 2018-10-23 2019-04-02 厦门韦尔通科技有限公司 一种适用于电子器件的胶黏剂及其制备方法
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CN110157370A (zh) * 2019-05-14 2019-08-23 永隆高新科技(青岛)有限公司 一种封边用反应型聚氨酯热熔胶
CN110157370B (zh) * 2019-05-14 2021-08-06 永隆高新科技(青岛)有限公司 一种封边用反应型聚氨酯热熔胶
CN112724908A (zh) * 2020-12-28 2021-04-30 江苏九九久特种纤维制品有限公司 一种气凝胶改性胶液及其制备方法
CN116970361A (zh) * 2023-08-04 2023-10-31 浙江映甫防护科技有限公司 一种水性聚氨酯胶体及其制备方法和水性聚氨酯胶体的应用
CN116970361B (zh) * 2023-08-04 2024-02-09 浙江映甫防护科技有限公司 一种水性聚氨酯胶体及其制备方法和水性聚氨酯胶体的应用

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