CN114086387A - 一种石墨烯高散热纤维及其制备方法 - Google Patents
一种石墨烯高散热纤维及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种石墨烯高散热纤维及其制备方法,该方法包含:步骤1,称取原料;步骤2,制备石墨烯超细粉体;步骤3,将石墨烯粉体与锦纶粉体搅拌混合;步骤4,将混合粉体通过熔融挤出进行复合造粒;步骤5,将复合母粒倒入纺丝机中,进行纺丝;步骤6,将石墨烯锦纶丝与黏胶纤维混纺成纱线;步骤7,制备高散热浆料;步骤8,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面;步骤9,将涂覆好的复合纤维烘干;步骤10,将高散热纤维缠绕筒装纱,备用。本发明还提供了通过该方法制备的石墨烯高散热纤维。本发明提供的石墨烯高散热纤维及其制备方法,制备的高散热纤维的散热效果好,冰凉感明显,导热系数较大,导热效果良好,且机械性能稳定。
Description
技术领域
本发明涉及一种石墨烯复合散热纤维及其制备方法,具体地,涉及一种石墨烯高散热纤维及其制备方法。
背景技术
石墨烯(Graphene)是一种由碳原子以sp2杂化轨道组成六角型呈蜂巢晶格的二维碳纳米材料。本身具有优良的力学性能和导热性能。
散热纤维即具有一定吸湿排汗效果;导热效率高,能够及时散发热量;使得人体保持一定舒适温度的纤维。高散热纤维是指散热效率更高,同等温差下,散热时间更少。
散热就是热量传递,而热的传递方式有三种:传导、对流和辐射。传导是由能量较低的粒子和能量较高的粒子直接接触碰撞来传递能量的方式;
玉石纤维(xuvcut)就是一种凉爽的保健型纤维。改玉器佩戴,变为玉石衣服。玉石能够改善血液微循环,促进新陈代谢;尤其是玉石能迅速带走热量,使人们穿着玉石纤维制成的织物时,人体感觉有较好的凉爽感,特别适合在炎热的夏季或运动时穿着;
接触凉感性能可以用接触凉感系数平均值表示,凉感效果优异;
冷感纤维是热传导快、接触凉感、应用热容大、热传导系数比较高的纤维,或者具备这样性质的介质加入到纤维以及通过不同纤维的组合实现纤维传热且接触凉感的纤维。冷感纤维的应用根据实现方式和应用领域不同而不同。
锦纶导热系数为0.244-0.337,而涤纶是0.084,因此锦纶织物就感觉凉爽,而涤纶就感觉温热;粘胶素来有冰丝之称,主要因为它滑爽、垂感、吸湿,其长丝织物给人穿着有凉爽的感觉。因此,将锦纶与粘胶合并后,凉感更加明确。另外锦纶最大的优点是结实耐磨,是最优的一种。密度小,织物轻,弹性好,耐疲劳破坏,化学稳定性也很好,耐碱不耐酸。
发明内容
本发明的目的是提供一种石墨烯复合散热纤维及其制备方法,在纤维表面涂覆一层散热涂层,使得与皮肤接触时,能将热源的热量及时散发出去。
为了达到上述目的,本发明提供了一种石墨烯高散热纤维的制备方法,其中,所述的方法包含:步骤1,按比例称取各原料;步骤2,制备石墨烯超细粉体;步骤3,将石墨烯粉体与锦纶粉体搅拌混合;步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒;步骤5,将复合母粒倒入纺丝机中,进行纺丝;步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线;步骤7,制备高散热浆料;步骤8,通过浆槽浸渍,将高散热浆料均匀涂覆在步骤6所得的石墨烯锦纶长丝表面;步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型;步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤2中,采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤3中,将石墨烯粉体与锦纶粉体经过高速搅拌器混合,搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为(0.5%:99.5%)~(1.5%:98.5%)。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤4中,制备的石墨烯锦纶母粒的粒径范围为2-5mm。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤5中,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤6中,按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为(50%:50%)~(30%:70%)。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤7中,采用玉石粉、粘合剂、改性剂、分散剂,按质量比为(1~3):(1~7):(1~2):(2~5)混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯醇和/或聚乙烯,改性剂为三氯甲烷甘油按任意比例混合的溶剂和/或四氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温80和/或吐温81。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤8中,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
上述的石墨烯高散热纤维的制备方法,其中,所述的步骤9中,烘干的温度为60℃,时间为2h。
本发明还提供了通过上述的方法制备的石墨烯高散热纤维。
本发明提供的石墨烯高散热纤维及其制备方法具有以下优点:
一是高散热纤维的散热效果好,冰凉感明显。
二是经过测试,高散热纤维导热系数较大,导热效果良好。
三是纤维机械性能稳定,触感弱偏硬,无明显粘附堆积现象。
具体实施方式
以下对本发明的具体实施方式作进一步地说明。
本发明提供的石墨烯高散热纤维的制备方法,其包含:步骤1,按比例称取各原料;步骤2,制备石墨烯超细粉体;步骤3,将石墨烯粉体与锦纶粉体搅拌混合;步骤4,将混合好的粉体通过熔融挤出机,熔融挤出进行复合造粒,制备石墨烯锦纶母粒;步骤5,将复合母粒倒入纺丝机中,进行纺丝;步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线;步骤7,制备高散热浆料;步骤8,通过浆槽浸渍,将高散热浆料均匀涂覆在步骤6所得的石墨烯锦纶长丝表面;步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型;步骤10,将干燥好的高散热纤维按照需求缠绕成一定规格的筒装纱,备用。
优选地,步骤2中,采用氧化还原法或机械研磨法等方法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目;制备过程为:在高速研磨机下持续不断的研磨12h,再通过筛框,筛分出符合要求的石墨烯粒径粉体。
步骤3中,将石墨烯粉体与锦纶粉体经过高速搅拌器混合,搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为(0.5%:99.5%)~(1.5%:98.5%)。
步骤4中,制备的石墨烯锦纶母粒的粒径范围为2-5mm。
步骤5中,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
步骤6中,按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为(50%:50%)~(30%:70%)。
步骤7中,采用玉石粉、粘合剂、改性剂、分散剂,按质量比为(1~3):(1~7):(1~2):(2~5)混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆等,粘合剂为聚乙烯醇和/或聚乙烯等,改性剂为三氯甲烷甘油按任意比例混合的溶剂和/或四氯甲烷甘油按任意比例混合的溶剂等,分散剂为吐温80和/或吐温81等。
步骤8中,通过浆槽浸渍法,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
步骤9中,烘干的温度为60℃,时间为2h。
本发明中采用的设备和纺丝及其它加工工艺的条件参数等均为本领域内技术人员所知的。
本发明还提供了通过该方法制备的石墨烯高散热纤维。
下面结合实施例对本发明提供的石墨烯高散热纤维及其制备方法做更进一步描述。
实施例1
一种石墨烯高散热纤维的制备方法,其包含:
步骤1,按比例称取各原料。
步骤2,制备石墨烯超细粉体。
采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
步骤3,将石墨烯粉体与锦纶粉体经过高速搅拌器搅拌混合。
搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为0.5%:99.5%。
步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒。
制备的石墨烯锦纶母粒的粒径范围为2-5mm。
步骤5,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线。
按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为50%:50%。
步骤7,制备高散热浆料。
采用玉石粉、粘合剂、改性剂、分散剂,按质量比为1:1:1:2混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯醇,改性剂为三氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温80。
步骤8,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型。
烘干的温度为60℃,时间为2h。
步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
本实施例还提供了通过该方法制备的石墨烯高散热纤维。
实施例2
一种石墨烯高散热纤维的制备方法,其包含:
步骤1,按比例称取各原料。
步骤2,制备石墨烯超细粉体。
采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
步骤3,将石墨烯粉体与锦纶粉体经过高速搅拌器搅拌混合。
搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为0.8%:99.2%。
步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒。
制备的石墨烯锦纶母粒的粒径范围为2-5mm。
步骤5,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线。
按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为45%:55%。
步骤7,制备高散热浆料。
采用玉石粉、粘合剂、改性剂、分散剂,按质量比为1.5:3:1:3混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯醇,改性剂为四氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温80。
步骤8,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型。
烘干的温度为60℃,时间为2h。
步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
本实施例还提供了通过该方法制备的石墨烯高散热纤维。
实施例3
一种石墨烯高散热纤维的制备方法,其包含:
步骤1,按比例称取各原料。
步骤2,制备石墨烯超细粉体。
采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
步骤3,将石墨烯粉体与锦纶粉体经过高速搅拌器搅拌混合。
搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为1%:99%。
步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒。
制备的石墨烯锦纶母粒的粒径范围为2-5mm。
步骤5,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线。
按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为40%:60%。
步骤7,制备高散热浆料。
采用玉石粉、粘合剂、改性剂、分散剂,按质量比为2:4:1.5:3.5混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯醇和聚乙烯,改性剂为三氯甲烷甘油按任意比例混合的溶剂和四氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温80和吐温81。
步骤8,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型。
烘干的温度为60℃,时间为2h。
步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
本实施例还提供了通过该方法制备的石墨烯高散热纤维。
实施例4
一种石墨烯高散热纤维的制备方法,其包含:
步骤1,按比例称取各原料。
步骤2,制备石墨烯超细粉体。
采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
步骤3,将石墨烯粉体与锦纶粉体经过高速搅拌器搅拌混合。
搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为1.3%:98.7%。
步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒。
制备的石墨烯锦纶母粒的粒径范围为2-5mm。
步骤5,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线。
按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为35%:65%。
步骤7,制备高散热浆料。
采用玉石粉、粘合剂、改性剂、分散剂,按质量比为2.5:6:2:4混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯,改性剂为三氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温81。
步骤8,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型。
烘干的温度为60℃,时间为2h。
步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
本实施例还提供了通过该方法制备的石墨烯高散热纤维。
实施例5
一种石墨烯高散热纤维的制备方法,其包含:
步骤1,按比例称取各原料。
步骤2,制备石墨烯超细粉体。
采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
步骤3,将石墨烯粉体与锦纶粉体经过高速搅拌器搅拌混合。
搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为1.5%:98.5%。
步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒。
制备的石墨烯锦纶母粒的粒径范围为2-5mm。
步骤5,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线。
按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为30%:70%。
步骤7,制备高散热浆料。
采用玉石粉、粘合剂、改性剂、分散剂,按质量比为3:7:2:5混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯,改性剂为四氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温81。
步骤8,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型。
烘干的温度为60℃,时间为2h。
步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
本实施例还提供了通过该方法制备的石墨烯高散热纤维。
对本发明各实施例所得的纤维进行测试,结果为:本发明制备的石墨烯高散热纤维,散热系数可达到1.5W/min,市面普通仅为0.2W/min。
本发明提供的石墨烯高散热纤维及其制备方法,材料主要包括石墨烯、锦纶、黏胶、玉石粉、粘合剂、分散剂、改性剂等。解决技术问题的手段是在纤维表面涂覆一层散热涂层,使得与皮肤接触时,能将热源的热量及时散发出去。制备的高散热纤维的散热效果好,冰凉感明显,导热系数较大,导热效果良好,并且机械性能稳定。
尽管本发明的内容已经通过上述优选实施例作了详细介绍,但应当认识到上述的描述不应被认为是对本发明的限制。在本领域技术人员阅读了上述内容后,对于本发明的多种修改和替代都将是显而易见的。因此,本发明的保护范围应由所附的权利要求来限定。
Claims (10)
1.一种石墨烯高散热纤维的制备方法,其特征在于,所述的方法包含:
步骤1,按比例称取各原料;
步骤2,制备石墨烯超细粉体;
步骤3,将石墨烯粉体与锦纶粉体搅拌混合;
步骤4,将混合好的粉体通过熔融挤出进行复合造粒,制备石墨烯锦纶母粒;
步骤5,将复合母粒倒入纺丝机中,进行纺丝;
步骤6,将步骤5所得的石墨烯锦纶丝与黏胶纤维混纺成纱线;
步骤7,制备高散热浆料;
步骤8,通过浆槽浸渍,将高散热浆料均匀涂覆在步骤6所得的石墨烯锦纶长丝表面;
步骤9,将涂覆好的复合纤维在烘干机中烘干,使得涂层在纤维表层凝固成型;
步骤10,将干燥好的高散热纤维缠绕成的筒装纱,备用。
2.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤2中,采用氧化还原法或机械研磨法制备石墨烯超细粉体,所得的粉体粒径范围为2000~3000目。
3.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤3中,将石墨烯粉体与锦纶粉体经过高速搅拌器混合,搅拌速率为200~300转/分,时间为6h以上;按质量百分比计石墨烯粉体与锦纶粉体的用量比为(0.5%:99.5%)~(1.5%:98.5%)。
4.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤4中,制备的石墨烯锦纶母粒的粒径范围为2-5mm。
5.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤5中,将复合母粒倒入纺丝机的料斗中,开通设备电源,设置挤出速率为40r/min,温度为220~250℃,进行纺丝。
6.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤6中,按质量百分比计石墨烯锦纶丝与黏胶纤维的用量比为(50%:50%)~(30%:70%)。
7.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤7中,采用玉石粉、粘合剂、改性剂、分散剂,按质量比为(1~3):(1~7):(1~2):(2~5)混合均匀制备高散热浆料;玉石粉的成分中包含二氧化硅、二氧化锆,粘合剂为聚乙烯醇和/或聚乙烯,改性剂为三氯甲烷甘油按任意比例混合的溶剂和/或四氯甲烷甘油按任意比例混合的溶剂,分散剂为吐温80和/或吐温81。
8.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤8中,通过浆槽浸渍,设置浆槽的长度为15m,纤维浸渍时间为3h,将高散热浆料均匀涂覆在石墨烯锦纶长丝表面,按质量百分比计涂覆的浆料与石墨烯锦纶长丝的用量比为0.5%:99.5%。
9.如权利要求1所述的石墨烯高散热纤维的制备方法,其特征在于,所述的步骤9中,烘干的温度为60℃,时间为2h。
10.一种通过如权利要求1~9中任意一项所述的方法制备的石墨烯高散热纤维。
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