CN104532602B - 导电手套革的制备方法 - Google Patents

导电手套革的制备方法 Download PDF

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CN104532602B
CN104532602B CN201410754345.6A CN201410754345A CN104532602B CN 104532602 B CN104532602 B CN 104532602B CN 201410754345 A CN201410754345 A CN 201410754345A CN 104532602 B CN104532602 B CN 104532602B
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尉雷
刘连伟
金梅
王�华
刘安秦
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WUXI DOUBLE ELEPHANT MICRO FIBER MATERIAL Ltd
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Abstract

本发明涉及一种导电手套革的制备方法,包括如下步骤:(1)超细旦海岛纤维和无纺布的制备;(2)湿法含浸,采用模量为40~70kg/cm2的聚碳型聚氨酯和导电炭黑配制混合含浸液,导电炭黑与聚氨酯的质量比为20~30:100;(3)甲苯减量;(4)底基烘干;(5)片皮处理;(6)磨皮、起绒、除尘后制得导电手套革。本发明制备方法简单,含浸液中添加了导电炭黑,降低了皮革的绝缘性,不改变皮革本身的物性及手感,导电手套革的电阻达到小于等于10³Ω,采用此种导电手套革材料在触摸电子产品的显示屏时,人体与手套革产生的磁场相通,达到戴着手套也能够移动触摸屏。

Description

导电手套革的制备方法
技术领域
本发明涉及一种导电手套革的制备方法,属于人造革制造技术领域。
背景技术
随着电子产品在人们日常生活的普及,人们越来越依靠电子产品,触摸屏电子产品开始备受亲睐,但在寒冷的冬季或者是常年处于严寒季节的东北欧,触摸屏电子产品在户外的使用受到了影响,人们往往要将手指暴露于酷寒中来使用这些产品,手套革具有弱电阻并具有优异的导电性,可以和人体磁场相通,利用人体的电流感应进行工作的。当手指触摸在金属层上时,由于人体电场,用户和触摸屏表面形成以一个耦合电容,对于高频电流来说,电容是直接导体,于是手指从接触点吸走一个很小的电流。这个电流分从触摸屏的四角上的电极中流出,并且流经这四个电极的电流与手指到四角的距离成正比,控制器通过对这四个电流比例的精确计算,得出触摸点的位置。人体可以隔着这层皮革使用触摸屏电子产品,提高了在寒冷季节和地区的人们工作、生活的便捷性超细纤维聚氨酯合成革制手套,不仅具有优良的物性,还因其舒适的手感、鲜艳的颜色、易批量加工。
发明内容
本发明的目的是为了解决目前触摸屏类的电子产品在冬季时使用不便的问题,提供了一种导电手套革的制造方法,制得的手套革手感更加柔软细腻。
本发明采用如下技术方案:一种导电手套革的制备方法,包括如下步骤:
(1)超细旦海岛纤维和无纺布的制备:采用低粘度聚酰胺6切片、低粘度低密度聚乙烯、色母粒为原料,按质量比为43~48:35~40:15~20混合搅拌均匀,制得长度为50~51 mm,纤度为6.5~7.5dtex的短纤维,将制得的短纤维经针刺机制成无纺布;
(2)湿法含浸:将步骤(1)得到的无纺布经过聚碳型聚氨酯工作液和导电炭黑的混合含浸液中,导电炭黑与聚氨酯的质量比为20~30:100,聚碳型聚氨酯的模量为40~70kg/cm2,所述聚碳型聚氨酯工作液包含以下组分,组分按质量百分比计为:聚碳型聚氨酯52~58%、二甲基甲酰胺为40~45%,乳化剂为0.5~1%,消泡剂为0.1~0.5%,渗透剂为0.5~1%,泡孔调节剂为0.5~1%,混合含浸液的固含量为25~30%,无纺布经过辊筒挤压含浸,通过质量浓度为11~18%的二甲基甲酰胺的水溶液进行凝固发泡,然后水洗去除无纺布上残留的二甲基甲酰胺,即可得到多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基;
(3)甲苯减量:将步骤(2)得到的多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基分别通过甲苯槽去除低密度聚乙烯、通过水洗槽清洗去除残留的甲苯,得到超细旦聚酰胺导电皮革底基;
(4)底基烘干:将步骤(3)得到的超细旦聚酰胺导电皮革底基首先经过七层拖网式烘箱自由收缩预烘干,然后经扩幅烘干机将底基烘干拉幅,烘干温度为130~140℃,底基门幅为1.35~1.4m,制得超细旦聚酰胺短纤维导电皮革底基;
(5)片皮处理:将步骤(4)得到的超细旦聚酰胺短纤维皮革底基按一定厚度从中间片开,获得上下两层,将片皮面标记为A面,另一面标记为B面;
(6)磨皮、起绒、除尘:
首先以A面为基准面,采用100~180目的沙皮对B面进行磨皮,磨掉的厚度为0.03~0.08 mm,然后采用180~240目的沙皮继续对B面进行磨皮,减量0.02~0.05mm;
以B面为基准面,首先采用180~240目的沙皮对A面进行磨皮,减量0.02~0.05mm;然后采用240~420目的沙皮继续对A面进行磨皮,减量0.01~0.03mm;
继续以A面为基准面,采用240~420目的沙皮对B面进行磨皮,减量0.01~0.03mm;
将半成品手套革的A面和B面分别置于连续九辊磨皮机上采用240~420目的沙皮起绒,减量0.05~0.1mm;
将制得手套革置于除尘机上正反面除尘后,除尘机车速为3~5米/分钟,除尘机风机转速为1200~1800转/分钟,即制得超细旦聚酰胺短纤维导电手套革。
进一步的,步骤(1)中单螺杆纺丝机的螺杆压力为5~10kg,螺杆转速为30~50Hz,螺杆温度为90~295℃,管道温度为280~290℃。
进一步的,所述导电炭黑的粒径大小为10~20nm,比电阻为0.35~0.40Ωcm。
进一步的,所述聚碳型聚氨酯和导电炭黑的混合含浸液在制备时的添加顺序为:先添加二甲基甲酰胺搅拌,再依次添加乳化剂、消泡剂、渗透剂、泡孔调节剂搅拌均匀,然后加入聚碳型聚氨酯树脂总量的20~30%搅拌均匀,再缓慢添加导电炭黑快速搅拌均匀,最后添加剩余的聚碳型聚氨酯树脂搅拌均匀。
进一步的,所述步骤(1)中低粘度聚酰胺6切片的相对粘度为2.8~2.9,密度为1.10~1.18g/cm³,熔融温度为285~295℃。
进一步的,低粘度低密度聚乙烯作为海组分,相对粘度为2.4~2.6,密度为0.90~0.92g/cm³,熔点为98~110℃。
进一步的,所述色母粒采用日本特黑色母BK-35。
进一步的,所述步骤(2)中凝固发泡的凝固时间为40~60min,凝固温度为25~45℃。
本发明制备方法简单,含浸液中添加了导电炭黑,降低了皮革的绝缘性,不改变皮革本身的物性及手感,导电手套革的电阻达到小于等于10³Ω,采用此种导电手套革材料在触摸电子产品的显示屏时,人体与手套革产生的磁场相通,达到戴着手套也能够移动触摸屏。
具体实施方式
下面根据具体实施例对本发明作进一步的说明。
本发明的实施例中的乳化剂选购于烟台盛太化工有限公司生产的NO.10型号乳化剂;泡孔调节剂选购于常州市金湖县金陵助剂厂生产的型号为S-80;消泡剂选购于烟台盛太化工有限公司生产的SC-02型号消泡剂;渗透剂选购于上海市得利化工助剂有限公司生产的DHL-70型号高效渗透剂。
实施例一:一种导电手套革的制备方法,包括如下步骤:
(1)超细旦海岛纤维和无纺布的制备:将低粘度聚酰胺6切片和低粘度低密度聚乙烯按照质量比为35:65混合经慢速搅拌机30转/分钟搅拌15分钟,低粘度聚酰胺6切片作为岛组分,相对粘度为2.2,密度为1.08g/cm³,熔点为215℃,低粘度低密度聚乙烯作为海组分,相对粘度为2.4,密度为0.92g/cm³,熔点为98℃,待以上两种料搅拌均匀后,通过单螺杆纺丝机熔融搅拌进入海岛型喷丝组件,螺杆压力为5kg,螺杆转速为30Hz,螺杆温度为90℃,管道温度为278℃,经分配板和喷丝板挤出成型;挤出成型的丝束再经三道牵伸辊牵伸,三辊牵伸比为1:2.2:3.5,纺丝油剂油浴槽上油、卷曲机卷曲的主压为1kg,被压为0.5kg,卷曲个数为10个/25mm、烘干温度为50℃,烘干时间为5分钟、切断制得长度为50 mm,纤度为5.0dtex的短纤维,打包机按照150kg/包包装;将6包纤维一同混放,经带有锯齿和钉子辊筒的粗开松机把纤维预开松,再由风机将开松的纤维送到大棉仓,经大棉仓顶部风机前后摆动喂入纤维使得纤维均匀的混合,再经五辊精开松机精开松使得纤维更加蓬松,经末道棉箱虑压、储存纤维让风机喂入的纤维中的气流趋于平稳,经气压棉箱均匀喂入纤维,电子秤自动称量系统,梳理机七辊梳理、上下道夫剥取形成上下均匀纤维网,铺网机将上下纤维网叠合根据设置不同规格的产品调节铺网成数,再经七台针刺机上下反复穿刺形成具有一定密度和强度的无纺布,经切边机将无纺布裁剪整齐并分卷,再经80℃热收缩定型,定型辊筒间隙为基布厚度/1.1,制得无纺布;
(2)湿法含浸:将步骤(1)得到的无纺布经过聚碳型聚氨酯工作液和导电炭黑的混合含浸液中,导电炭黑的粒径大小为10nm,比电阻为0.35Ωcm,导电炭黑与聚碳型聚氨酯的质量比为20:100,聚碳型聚氨酯的模量为40kg/cm2,混合含浸液的固含量为25%,聚碳型聚氨酯工作液包含以下组分,组分按质量百分比计为:聚碳型聚氨酯52%、二甲基甲酰胺为40%,乳化剂为0.5%,消泡剂为0.5%,渗透剂为0.5%,泡孔调节剂为0.5%;
聚碳型聚氨酯工作液在配制时先添加二甲基甲酰胺搅拌,再依次添加乳化剂、消泡剂、渗透剂、泡孔调节剂搅拌均匀,然后加入聚碳型聚氨酯树脂总量的20%搅拌均匀,再缓慢添加导电炭黑快速搅拌均匀,最后添加剩余的聚碳型聚氨酯树脂搅拌均匀;
无纺布经过辊筒挤压含浸,通过质量浓度为11%的二甲基甲酰胺的水溶液进行凝固发泡,凝固时间为40分钟,凝固温度为25℃,然后通过15道水洗槽水洗去除无纺布上残留的二甲基甲酰胺,即可得到多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基;
(3)甲苯减量:将步骤(2)得到的多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基通过6个甲苯槽,甲苯槽温度为80℃,槽内辊筒张力应控制到最小直至不打皱,最佳张力1.5kg;再经3个水洗槽将残留的甲苯洗掉,水洗温度为95℃,水洗槽张力为1.8kg,聚乙烯含量残留小于2%,得到超细旦聚酰胺导电皮革底基;
(4)底基烘干:将步骤(3)得到的超细旦聚酰胺导电皮革底基首先经过七层拖网式烘箱自由收缩预烘干,然后经扩幅烘干机将底基烘干拉幅,烘干温度为130℃,底基门幅为1.35m,制得超细旦聚酰胺短纤维导电皮革底基;
(5)皮处理:将步骤(4)得到的超细旦聚酰胺短纤维皮革底基按一定厚度从中间片开,获得上下两层,将片皮面标记为A面,另一面标记为B面;
(6)磨皮、起绒、除尘:
首先以A面为基准面,采用100目的沙皮对B面进行磨皮,磨掉的厚度为0.03 mm,然后采用180目的沙皮继续对B面进行磨皮,减量0.02mm;
以B面为基准面,首先采用180目的沙皮对A面进行磨皮,减量0.02mm;然后采用240目的沙皮继续对A面进行磨皮,减量0.01mm;
继续以A面为基准面,采用240目的沙皮对B面进行磨皮,减量0.01mm;
将半成品手套革的A面和B面分别置于连续九辊磨皮机上采用240目的沙皮起绒,减量0.05mm;
将制得手套革置于除尘机上正反面除尘后,除尘机车速为3米/分钟,除尘机风机转速为1200转/分钟,即制得导电手套革。
实施例二:一种导电手套革的制备方法,包括如下步骤:
(1)超细旦海岛纤维和无纺布的制备:将低粘度聚酰胺6切片和低粘度低密度聚乙烯按照质量比为45:45混合经慢速搅拌机40转/分钟搅拌18分钟,低粘度聚酰胺6切片作为岛组分,相对粘度为2.3,密度为1.08g/cm³,熔点为220℃,低粘度低密度聚乙烯作为海组分,相对粘度为2.5,密度为0.92g/cm³,熔点为100℃,待以上两种料搅拌均匀后,通过单螺杆纺丝机熔融搅拌进入海岛型喷丝组件,螺杆压力为8kg,螺杆转速为40Hz,螺杆温度为200℃,管道温度为280℃,经分配板和喷丝板挤出成型;挤出成型的丝束再经三道牵伸辊牵伸,三辊牵伸比为1:2.5:3.5,纺丝油剂油浴槽上油、卷曲机卷曲的主压为2kg,被压为1.0kg,卷曲个数为15个/25mm、烘干温度为60℃,烘干时间为8分钟、切断制得长度为52 mm,纤度为6.0dtex的短纤维,打包机按照200kg/包包装;将7包纤维一同混放,经带有锯齿和钉子辊筒的粗开松机把纤维预开松,再由风机将开松的纤维送到大棉仓,经大棉仓顶部风机前后摆动喂入纤维使得纤维均匀的混合,再经五辊精开松机精开松使得纤维更加蓬松,经末道棉箱虑压、储存纤维让风机喂入的纤维中的气流趋于平稳,经气压棉箱均匀喂入纤维,电子秤自动称量系统,梳理机七辊梳理、上下道夫剥取形成上下均匀纤维网,铺网机将上下纤维网叠合根据设置不同规格的产品调节铺网成数,再经七台针刺机上下反复穿刺形成具有一定密度和强度的无纺布,经切边机将无纺布裁剪整齐并分卷,再经100℃热收缩定型,定型辊筒间隙为基布厚度/1.1~1.5后,制得无纺布;
(2)湿法含浸:将步骤(1)得到的无纺布经过聚碳型聚氨酯工作液和导电炭黑的混合含浸液中,导电炭黑的粒径大小为15nm,比电阻为0.38Ωcm,导电炭黑与聚碳型聚氨酯的质量比为25:100,聚碳型聚氨酯的模量为60kg/cm2,混合含浸液的固含量为28%,聚碳型聚氨酯工作液包含以下组分,组分按质量百分比计为:聚碳型聚氨酯52%、二甲基甲酰胺为45%,乳化剂为0.9%,消泡剂为0.1%,渗透剂为1%,泡孔调节剂为1%;
聚碳型聚氨酯工作液在配制时先添加二甲基甲酰胺搅拌,再依次添加乳化剂、消泡剂、渗透剂、泡孔调节剂搅拌均匀,然后加入聚碳型聚氨酯树脂总量的20~30%搅拌均匀,再缓慢添加导电炭黑快速搅拌均匀,最后添加剩余的聚碳型聚氨酯树脂搅拌均匀;
无纺布经过辊筒挤压含浸,通过质量浓度为15%的二甲基甲酰胺的水溶液进行凝固发泡,凝固时间为50分钟,凝固温度为40℃,然后通过15道水洗槽水洗去除无纺布上残留的二甲基甲酰胺,即可得到多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基;
(3)甲苯减量:将步骤(2)得到的多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基通过7个甲苯槽,甲苯槽温度为85℃,槽内辊筒张力应控制到最小直至不打皱,最佳张力1.7kg;再经3个水洗槽将残留的甲苯洗掉,水洗温度为98℃,水洗槽张力为2.0kg,聚乙烯含量残留小于2%,得到超细旦聚酰胺导电皮革底基;
(4)底基烘干:将步骤(3)得到的超细旦聚酰胺导电皮革底基首先经过七层拖网式烘箱自由收缩预烘干,然后经扩幅烘干机将底基烘干拉幅,烘干温度为135℃,底基门幅为1.4m,制得超细旦聚酰胺短纤维导电皮革底基;
(5)皮处理:将步骤(4)得到的超细旦聚酰胺短纤维皮革底基按一定厚度从中间片开,获得上下两层,将片皮面标记为A面,另一面标记为B面;
(6)磨皮、起绒、除尘:
首先以A面为基准面,采用150目的沙皮对B面进行磨皮,磨掉的厚度为0.05 mm,然后采用180~240目的沙皮继续对B面进行磨皮,减量0.04mm;
以B面为基准面,首先采用200目的沙皮对A面进行磨皮,减量0.04mm;然后采用300目的沙皮继续对A面进行磨皮,减量0.02mm;
继续以A面为基准面,采用300目的沙皮对B面进行磨皮,减量0.02mm;
将半成品手套革的A面和B面分别置于连续九辊磨皮机上采用300目的沙皮起绒,减量0.08mm;
将制得手套革置于除尘机上正反面除尘后,除尘机车速为3~5米/分钟,除尘机风机转速为1200~1800转/分钟,即制得导电手套革。
实施例三:一种导电手套革的制备方法,包括如下步骤:
(1)超细旦海岛纤维和无纺布的制备:将低粘度聚酰胺6切片和低粘度低密度聚乙烯按照质量比为65:35混合经慢速搅拌机50转/分钟搅拌20分钟,低粘度聚酰胺6切片作为岛组分,相对粘度为2.4,密度为1.08g/cm³,熔点为225℃,低粘度低密度聚乙烯作为海组分,相对粘度为2.6,密度为0.92g/cm³,熔点为110℃,待以上两种料搅拌均匀后,通过单螺杆纺丝机熔融搅拌进入海岛型喷丝组件,螺杆压力为10kg,螺杆转速为50Hz,螺杆温度为288℃,管道温度为288℃,经分配板和喷丝板挤出成型;挤出成型的丝束再经三道牵伸辊牵伸,三辊牵伸比为1:2.8:4,纺丝油剂油浴槽上油、卷曲机卷曲的主压为2kg,被压为1.3kg,卷曲个数为20个/25mm、烘干温度为75℃,烘干时间为10分钟、切断制得长度为55 mm,纤度为7.0dtex的短纤维,打包机按照230kg/包包装;将8包纤维一同混放,经带有锯齿和钉子辊筒的粗开松机把纤维预开松,再由风机将开松的纤维送到大棉仓,经大棉仓顶部风机前后摆动喂入纤维使得纤维均匀的混合,再经五辊精开松机精开松使得纤维更加蓬松,经末道棉箱虑压、储存纤维让风机喂入的纤维中的气流趋于平稳,经气压棉箱均匀喂入纤维,电子秤自动称量系统,梳理机七辊梳理、上下道夫剥取形成上下均匀纤维网,铺网机将上下纤维网叠合根据设置不同规格的产品调节铺网成数,再经七台针刺机上下反复穿刺形成具有一定密度和强度的无纺布,经切边机将无纺布裁剪整齐并分卷,再经140℃热收缩定型,定型辊筒间隙为基布厚度/1.1~1.5后,制得无纺布;
(2)湿法含浸:将步骤(1)得到的无纺布经过聚碳型聚氨酯工作液和导电炭黑的混合含浸液中,导电炭黑的粒径大小为20nm,比电阻为0.40Ωcm,导电炭黑与聚碳型聚氨酯的质量比为30:100,聚碳型聚氨酯的模量为70kg/cm2,混合含浸液的固含量为30%,聚碳型聚氨酯工作液包含以下组分,组分按质量百分比计为:聚碳型聚氨酯52%、二甲基甲酰胺为45%,乳化剂为0.9%,消泡剂为0.1%,渗透剂为1%,泡孔调节剂为1%;
聚碳型聚氨酯工作液在配制时先添加二甲基甲酰胺搅拌,再依次添加乳化剂、消泡剂、渗透剂、泡孔调节剂搅拌均匀,然后加入聚碳型聚氨酯树脂总量的20~30%搅拌均匀,再缓慢添加导电炭黑快速搅拌均匀,最后添加剩余的聚碳型聚氨酯树脂搅拌均匀;
无纺布经过辊筒挤压含浸,通过质量浓度为18%的二甲基甲酰胺的水溶液进行凝固发泡,凝固时间为60分钟,凝固温度为45℃,然后通过15道水洗槽水洗去除无纺布上残留的二甲基甲酰胺,即可得到多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基;
(3)甲苯减量:将步骤(2)得到的多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基通过6~8个甲苯槽,甲苯槽温度为95℃,槽内辊筒张力应控制到最小直至不打皱,最佳张力1.8kg;再经3个水洗槽将残留的甲苯洗掉,水洗温度为100℃,水洗槽张力为2.2kg,聚乙烯含量残留小于2%,得到超细旦聚酰胺导电皮革底基;
(4)底基烘干:将步骤(3)得到的超细旦聚酰胺导电皮革底基首先经过七层拖网式烘箱自由收缩预烘干,然后经扩幅烘干机将底基烘干拉幅,烘干温度为140℃,底基门幅为1.4m,制得超细旦聚酰胺短纤维导电皮革底基;
(5)皮处理:将步骤(4)得到的超细旦聚酰胺短纤维皮革底基按一定厚度从中间片开,获得上下两层,将片皮面标记为A面,另一面标记为B面;
(6)磨皮、起绒、除尘:
首先以A面为基准面,采用180目的沙皮对B面进行磨皮,磨掉的厚度为0.08 mm,然后采用240目的沙皮继续对B面进行磨皮,减量0.05mm;
以B面为基准面,首先采用180~240目的沙皮对A面进行磨皮,减量0.05mm;然后采用420目的沙皮继续对A面进行磨皮,减量0.03mm;
继续以A面为基准面,采用420目的沙皮对B面进行磨皮,减量0.03mm;
将半成品手套革的A面和B面分别置于连续九辊磨皮机上采用420目的沙皮起绒,减量0.1mm;
将制得手套革置于除尘机上正反面除尘后,除尘机车速为5米/分钟,除尘机风机转速为1800转/分钟,即制得导电手套革。

Claims (6)

1.一种导电手套革的制备方法,其特征在于:包括如下步骤:
(1)超细旦海岛纤维和无纺布的制备:采用低粘度聚酰胺6切片、低粘度低密度聚乙烯、色母粒为原料,按质量比为43~48:35~40:15~20混合搅拌均匀,制得长度为50~51 mm,纤度为6.5~7.5dtex的短纤维,将制得的短纤维经针刺机制成无纺布;
(2)湿法含浸:将步骤(1)得到的无纺布经过聚碳型聚氨酯工作液和导电炭黑的混合含浸液中,导电炭黑与聚氨酯的质量比为20~30:100,聚碳型聚氨酯的模量为40~70kg/cm2,所述聚碳型聚氨酯工作液包含以下组分,组分按质量百分比计为:聚碳型聚氨酯52~58%、二甲基甲酰胺为40~45%,乳化剂为0.5~1%,消泡剂为0.1~0.5%,渗透剂为0.5~1%,泡孔调节剂为0.5~1%,混合含浸液的固含量为25~30%,无纺布经过辊筒挤压含浸,通过质量浓度为11~18%的二甲基甲酰胺的水溶液进行凝固发泡,然后水洗去除无纺布上残留的二甲基甲酰胺,即可得到多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基;
(3)甲苯减量:将步骤(2)得到的多孔质弹性体聚碳型导电超细旦聚氨酯无纺布湿法底基分别通过甲苯槽去除残留的低密度聚乙烯、通过水洗槽清洗去除残留的甲苯,得到超细旦聚酰胺导电皮革底基;
(4)底基烘干:将步骤(3)得到的超细旦聚酰胺导电皮革底基首先经过七层拖网式烘箱自由收缩预烘干,然后经扩幅烘干机将底基烘干拉幅,烘干温度为130~140℃,底基门幅为1.35~1.4m,制得超细旦聚酰胺短纤维导电皮革底基;
(5)片皮处理:将步骤(4)得到的超细旦聚酰胺短纤维皮革底基按一定厚度从中间片开,获得上下两层,将片皮面标记为A面,另一面标记为B面;
(6)磨皮、起绒、除尘:
首先以A面为基准面,采用100~180目的沙皮对B面进行磨皮,磨掉的厚度为0.03~0.08mm,然后采用180~240目的沙皮继续对B面进行磨皮,减量0.02~0.05mm;
再以B面为基准面,首先采用180~240目的沙皮对A面进行磨皮,减量0.02~0.05mm;然后采用240~420目的沙皮继续对A面进行磨皮,减量0.01~0.03mm;
继续以A面为基准面,采用240~420目的沙皮对B面进行磨皮,减量0.01~0.03mm;
将半成品手套革的A面和B面分别置于连续九辊磨皮机上采用240~420目的沙皮起绒,减量0.05~0.1mm;
将制得手套革置于除尘机上正反面除尘后,除尘机车速为3~5米/分钟,除尘机风机转速为1200~1800转/分钟,即制得导电手套革。
2.如权利要求1所述的导电手套革的制备方法,其特征在于:所述导电炭黑的粒径大小为10~20nm,比电阻为0.35~0.40Ωcm。
3.如权利要求1所述的导电手套革的制备方法,其特征在于:所述聚碳型聚氨酯工作液和导电炭黑的混合含浸液在制备时的添加顺序为:先添加二甲基甲酰胺搅拌,再依次添加乳化剂、消泡剂、渗透剂、泡孔调节剂搅拌均匀,然后加入聚碳型聚氨酯树脂总量的20~30%搅拌均匀,再缓慢添加导电炭黑快速搅拌均匀,最后添加剩余的聚碳型聚氨酯树脂搅拌均匀。
4.如权利要求1所述的导电手套革的制备方法,其特征在于:所述步骤(1)中低粘度聚酰胺6切片的相对粘度为2.8~2.9,密度为1.10~1.18g/cm³,熔融温度为285~295℃。
5.如权利要求1所述的导电手套革的制备方法,其特征在于:低粘度低密度聚乙烯作为海组分,相对粘度为2.4~2.6,密度为0.90~0.92g/cm³,熔点为98~110℃。
6.如权利要求1所述的导电手套革的制备方法,其特征在于:所述步骤(2)中凝固发泡的凝固时间为40~60min,凝固温度为25~45℃。
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