CN114502786B - 细胞无毒性亲水性改性涂层剂、包含其的细胞无毒性无纺布及其制备方法 - Google Patents
细胞无毒性亲水性改性涂层剂、包含其的细胞无毒性无纺布及其制备方法 Download PDFInfo
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- CN114502786B CN114502786B CN202080069232.6A CN202080069232A CN114502786B CN 114502786 B CN114502786 B CN 114502786B CN 202080069232 A CN202080069232 A CN 202080069232A CN 114502786 B CN114502786 B CN 114502786B
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Abstract
本发明涉及无细胞毒性的亲水性改性涂层剂及利用其亲水性改性的纤维产品,更具体地涉及适合将具有疏水性表面的产品,例如疏水性无纺布改性为亲水性的亲水性改性涂层剂、利用其制备的细胞无毒性无纺布。
Description
技术领域
本发明涉及适合将几乎无细胞毒性,具有疏水性表面的产品,作为一例,适用于将疏水性无纺布改性为亲水性的亲水性改性涂层剂、利用其制备的细胞无毒性无纺布。
背景技术
由以往公知的聚丙烯等聚烯烃原材料制备而成的无纺布等因其强的疏水性而存在作为需要亲水性的工业用无纺布及卫生用品的适用用途非常受限的问题。
尤其,卫生用品,例如,作为一次性吸收产品的幼儿用纸尿裤(baby diaper)、尿失禁者用纸尿裤(adult diaper)、女性用卫生巾(sanitary napkin)及卫生护垫(pantyliner)等中使用无纺布,作为上述无纺布,大部分适用合成无纺布,合成无纺布适用聚乙烯、聚丙烯等聚烯烃原材料的无纺布。但是,这种卫生用品需要亲水性,聚烯烃原材料的无纺布具有疏水性,无纺布中赋予亲水性之后适用。
为了解决这种问题,将合成亲水性改性涂层剂涂敷于无纺布,但当使用在与皮肤相接的面时,存在合成亲水性改性涂层剂不被排出而残留于身体的问题。进而,通过皮肤细胞膜进入的合成亲水性改性涂层剂随着血液转遍全身,具有引起脑、心脏、肝脏、脾脏等的细胞障碍的危险,并且,存在有可能引起特应性皮炎的问题。
因此,当前,需要开发对直接与人体相接触的疏水性原材料的产品,优选为疏水性无纺布赋予亲水性,对人体无害的亲水性改性涂层剂。
发明内容
技术问题
本发明的主要目的在于,基于如上所述的以往无纺布的各种问题的背景解决这些无纺布的问题,详细地提供制备具有细胞毒性少的最佳的组成及组成比的亲水性改性涂层剂,利用其对疏水性无纺布赋予亲水性的细胞无毒性无纺布。
技术方案
为了解决上述的问题,本发明的细胞无毒性亲水性改性涂层剂包含钠盐、马来酸盐、磷酸盐及醇醚类化合物。
作为本发明的优选一实施例,上述细胞无毒性亲水性改性涂层剂可包含钠盐15重量百分比~20重量百分比、马来酸盐10重量百分比~16重量百分比、磷酸盐2重量百分比~8重量百分比及余量的醇醚类化合物。
作为本发明的优选一实施例,在上述细胞无毒性亲水性改性涂层剂的组成中,上述钠盐可包含选自辛基磺基琥珀酸钠(多库酯钠)、十二烷基苯磺酸钠、铵α-磺基-ω-(壬基苯氧基)聚(氧-1,2-乙二基)、磺基丁烷二恶烷1,4-双(2-(C1~C3的烷基)(C4~C8的烷基)酯钠盐、牛脂酸钠、椰油酸钠及棕榈仁油酸钠中的一种以上。
作为本发明的优选一实施例,在上述细胞无毒性亲水性改性涂层剂的组成中,上述马来酸盐可包含选自双(2-(C1~C3的烷基)(C4~C8的烷基)苹果酸、乙烯马来酸酐共聚物及异丁烯马来酸酐共聚物中的一种以上。
作为本发明的优选一实施例,在上述细胞无毒性亲水性改性涂层剂的组成中,上述磷酸盐可包含选自聚(氧-1,2-乙二基)、聚氧乙烯壬基苯基醚磷酸、三(2-乙基己基)磷酸酯及(Z)-α-2-十八烯基-ω-羟基聚(氧-1,2-乙二基)磷酸盐中的一种以上。
作为本发明的优选一实施例,在上述细胞无毒性亲水性改性涂层剂的组成中,上述醇醚类化合物可包含选自二丙二醇单甲醚、聚乙烯醚、聚乙二醇及醇聚氧乙烯醚中的一种以上。
作为本发明的优选一实施例,根据ASTM D7042标准测试(20℃)测定的上述细胞无毒性亲水性改性涂层剂的粘度可以为950mPa.s~1100mPa.s。
作为本发明的优选一实施例,以10重量百分比浓度将上述细胞无毒性亲水性改性涂层剂溶解于水中的溶液的pH可以为5~8(在20℃下分析时)。
作为本发明的优选一实施例,上述细胞无毒性亲水性改性涂层剂的熔点可以为-2℃~2℃。
本发明的再一目的在于,涉及利用前面说明的细胞无毒性亲水性改性涂层剂制备细胞无毒性无纺布的方法,可执行工序制备,上述工序包括:第一步骤,准备无纺布;第二步骤,将细胞无毒性亲水性改性涂层剂涂敷于上述无纺布的一部分或全部;及第三步骤,通过热处理使亲水性改性涂层剂热固定于无纺布,将无纺布改性为亲水性。
作为本发明的优选一实施例,上述无纺布可包含疏水性纤维。
作为本发明的优选一实施例,上述疏水性纤维可以为包含选自聚乙烯纤维、聚丙烯纤维及丙烯乙烯共聚物纤维中的一种以上的聚烯烃类纤维。
作为本发明的优选一实施例,上述疏水性纤维的平均直径可以为1μm~50μm。
本发明的另一目的在于,涉及细胞无毒性无纺布,包含疏水性纤维的无纺布的一部分或全部改性为亲水性无纺布,在无纺布总重量中,可包含0.1重量百分比~3重量百分比的上述细胞无毒性亲水性改性涂层剂。
作为本发明的优选一实施例,当根据ISO 10993-5方法测定IC50时,细胞存活率可以为70%~100%。
作为本发明的优选一实施例,上述无纺布可以为纺粘无纺布、熔喷无纺布、气流成网(Air-laid)、湿法(Wet-laid)或干法无纺布(Dry-laid)。
发明的效果
本发明的亲水性改性涂层剂无细胞毒性,涂敷性优秀,当利用其将纤维原材料产品改性为亲水性时,具有低的再湿润性,适合用于将疏水性纤维产品改性为亲水性纤维,尤其,适合适用于直接与皮肤相接触的产品。
具体实施方式
以下,更详细说明本发明。
本发明的细胞无毒性亲水性改性涂层剂包含钠盐、马来酸盐、磷酸盐及醇醚类化合物。
上述钠盐可包含选自辛基磺基琥珀酸钠(多库酯钠)、十二烷基苯磺酸钠、铵α-磺基-ω-(壬基苯氧基)聚(氧-1,2-乙二基)、磺基丁烷二恶烷1,4-双(2-(C1~C3的烷基)(C4~C8的烷基)酯钠盐、牛脂酸钠、椰油酸钠及棕榈仁油酸钠中的一种或两种以上,优选地,可包含选自辛基磺基琥珀酸钠(多库酯钠)、十二烷基苯磺酸钠、铵α-磺基-ω-(壬基苯氧基)聚(氧-1,2-乙二基)及磺基丁烷二恶烷1,4-双(2-(C1~C3的烷基)(C4~C8的烷基)酯钠盐中的一种或两种以上,更优选地,可包含选自铵α-磺基-ω-(壬基苯氧基)聚(氧-1,2-乙二基)及磺基丁烷二恶烷1,4-双(2-(C2~C3的烷基)己基)酯钠盐中的一种或两种以上。
并且,在亲水性改性涂层剂总重量中,钠盐的含量可以为15重量百分比~20重量百分比,优选地,可以为16重量百分比~18.5重量百分比,更优选地,可以为16.5重量百分比~18.0重量百分比。此时,当钠盐含量小于15重量百分比时,有可能存在改性涂层剂的pH过于变低的问题,当钠盐含量大于20重量百分比时,有可能存在反而改性涂层剂的pH过于变高的问题及无纺布改性之后,再湿润性下降的问题,因而优选地,在上述范围内使用。
亲水性改性涂层剂组成中上述马来酸盐可包含选自双(2-(C1~C3的烷基)(C4~C8的烷基)苹果酸、乙烯马来酸酐共聚物及异丁烯马来酸酐共聚物中的一种或两种以上,优选地,可使用选自双(2-(C2~C3的烷基)(C5~C7的烷基)苹果酸及乙烯马来酸酐共聚物中的一种或两种,更优选地,可使用双(2-(C2~C3的烷基)己基)苹果酸。
并且,在亲水性改性涂层剂总重量中,马来酸盐的含量可以为10重量百分比~16重量百分比,优选地,可以为11.0重量百分比~14.8重量百分比,更优选地,可以为12.0重量百分比~14.0重量百分比。此时,当马来酸盐含量小于10重量百分比时,有可能存在改性的无纺布的亲水性提高效果下降的问题,当马来酸盐含量大于16重量百分比时,有可能存在细胞毒性增加的问题,因而优选地在上述范围内使用。
然后,在亲水性改性涂层剂组成中,上述磷酸盐可包含选自聚(氧-1,2-乙二基)、聚氧乙烯壬基苯基醚磷酸、三(2-乙基己基)磷酸酯、(Z)-α-2-十八烯基-ω-羟基聚(氧-1,2-乙二基)磷酸盐及α-十二烷基-ω-羟基聚氧乙烯磷酸酯钾盐(Poly(oxy-1,2-ethanediyl),α-dodecyl-ω-hydroxy-,phosphate,potassium salt/cas no.58318-92-6)中的一种或两种以上。
并且,在亲水性改性涂层剂总重量中,磷酸盐的含量可以为2重量百分比~8重量百分比,优选地,可以为2.5重量百分比~7.5重量百分比,更优选地,可以为3.0重量百分比~6.2重量百分比。此时,当磷酸盐含量小于2重量百分比时,有可能存在改性的无纺布的耐久吸收度提高效果不完善的问题,当磷酸盐含量大于8重量百分比时,有可能存在反而耐久吸收度下降的问题,因而优选地,在上述范围内使用。
然后,在亲水性改性涂层剂组成中,醇醚类化合物对上述亲水性改性涂层剂的其他组合物起到溶剂作用,可包含选自二丙二醇单甲醚、聚乙烯醚、聚乙二醇及醇聚氧乙烯醚中的一种或两种以上,优选地,可使用选自二丙二醇单甲醚、聚乙烯醚及醇聚氧乙烯醚中的一种或两种,更优选地,可使用选自二丙二醇单甲醚及醇聚氧乙烯醚中的一种或两种。
并且,在亲水性改性涂层剂全部100重量百分比中,醇醚类化合物的含量以除了其他组合物之外的余量使用。
由前面说明的组合物混合制备而成的本发明的细胞无毒性亲水性改性涂层剂根据ASTM D7042标准测试(20℃)测定的粘度可以为950mPa.s~1100mPa.s,优选地,可以为980mPa.s~1080mPa.s,更优选地,可以为1000mPa.s~1060mPa.s。
并且,当在20℃分析时,以9重量百分比~12重量百分比浓度,优选为10重量百分比浓度将本发明的细胞无毒性亲水性改性涂层剂溶解于水中的溶液的pH可以为5~8,优选地,pH可以为5.5~7.5,更优选地,pH可以为5.8~7.0。
并且,本发明的细胞无毒性亲水性改性涂层剂的熔点可以为-3℃~3℃,优选地,熔点可以为-2℃~2℃。
可利用前面说明的细胞无毒性亲水性改性涂层剂将疏水性产品改性为亲水性,作为优选一例,说明将无纺布改性为亲水性的内容如下。
可执行工序制备亲水性改性的无纺布,上述工序包括:第一步骤,准备无纺布;第二步骤,将细胞无毒性亲水性改性涂层剂涂敷于上述无纺布的一部分或全部;及第三步骤,通过热处理使亲水性改性涂层剂热固定于无纺布,将无纺布改性为亲水性。
第一步骤的上述无纺布包含疏水性纤维,可包含一部分亲水性纤维,可以为由全部疏水性纤维制备而成的无纺布。无纺布的一部分或全部可具有疏水性。
上述疏水性纤维可以为包含选自聚乙烯纤维、聚丙烯纤维及丙烯乙烯共聚物纤维中的一种以上的聚烯烃类纤维。
并且,上述疏水性纤维的平均直径可以为1μm~50μm,优选地,可以为1μm~30μm。
并且,第一步骤的无纺布可以为纺粘无纺布、熔喷无纺布、气流成网(Air-laid)、湿法(Wet-laid)或干法无纺布(Dry-laid)。
然后,第二步骤的细胞无毒性亲水性改性涂层剂如上所述。并且,第二步骤中可通过该领域中使用的常规涂敷方法涂敷,优选地,可通过吻辊涂敷法或喷涂法等涂敷。
然后,第三步骤的热处理可在滚筒干燥机中施加100℃~150℃的热,优选地,施加110℃~140℃的热。此时,当热处理温度小于100℃时,有可能存在无纺布无法彻底干燥的问题,当热处理温度大于150℃时,有可能存在无纺布变硬的问题。
制备的改性为亲水性的细胞无毒性无纺布可包含0.1重量百分比~3.0重量百分比的细胞无毒性亲水性改性涂层剂,优选地,可包含0.4重量百分比~2.8重量百分比,更优选地,可包含0.5重量百分比~1.5重量百分比。此时,当细胞无毒性亲水性改性涂层剂含量小于0.1重量百分比时,亲水性改性效果有可能不完善,当细胞无毒性亲水性改性涂层剂含量大于3重量百分比时,有可能存在无纺布的再湿润性变高,变得潮湿的问题。
并且,第三步骤的细胞无毒性无纺布的基重可以为10gsm~100gsm。
并且,当根据ISO 10993-5方法测定IC50时,本发明的细胞无毒性无纺布的细胞存活率可以为70%~100%,优选地,可以为85%~100%,更优选地,可以为90%~100%。
并且,当根据WSP 70.3(08)(使用模拟尿液的无纺布覆盖物液体穿透时间的标准测试方法(Standard Test Method for Nonwoven Coverstock Liquid Strike-ThroughTime Using Simulated Urine))测定时,本发明的细胞无毒性无纺布的液体吸收速度可以为2.50秒钟~3.50秒钟,优选地,可以为2.50秒钟~3.20秒钟。
并且,当根据WSP 70.7(09)(无纺布重复液体穿透时间的标准测试方法(StandardTest Method for Nonwoven-Repeated Liquid Strike-Through Time))测定耐久吸收度时,本发明的细胞无毒性无纺布的第一次耐久吸收度可以为1.50秒钟~2.80秒钟,第二次耐久吸收度可以为2.00秒钟~3.50秒钟,第三次耐久吸收度可以为2.30秒钟~3.80秒钟。
并且,当根据WSP 70.8(09)(重复穿透时间后湿回的标准测试方法(StandardTest Method for Wetback After Repeated Strike-Through Time))测定对液体的再湿润性时,本发明的细胞无毒性无纺布的再湿润性可以为2.0g~3.5g,优选地,可以为2.2g~3.3g。
并且,当根据ISO 10993-5方法测定IC50时,本发明的细胞无毒性无纺布的细胞存活率可以为70%~100%,优选地,可以为85%~100%,更优选地,可以为90%~100%。
以下,根据实施例更具体说明本发明。以下实施例有助于理解本发明,不应根据实施例限定本发明的发明要求保护范围而解释。
实施例
实施例1:细胞无毒性亲水性改性涂层剂的制备
混合及搅拌作为钠盐的1,4-二(2-乙基己基)丁二酸酯磺酸钠盐(cas no.577-11-7)、作为马来酸盐的马来酸二乙基己酯(bis(2-ethylhexyl)maleate,cas no.142-16-5)、作为磷酸盐的α-十二烷基-ω-羟基聚氧乙烯磷酸酯钾盐(Poly(oxy-1,2-ethanediyl),α-dodecyl-ω-hydroxy-,phosphate,potassium salt/cas no.58318-92-6)及作为醇醚类化合物的二丙二醇单甲醚,以制备细胞无毒性亲水性改性涂层剂。
并且,亲水性改性涂层剂内钠盐、马来酸盐、磷酸盐及醇醚类化合物的各个含量如下列表1。
实施例2~实施例7及比较例1~比较例6
以与上述实施例1相同的方法制备亲水性改性涂层剂,分别制备具有如下列表1中所示的组成及组成比的亲水性改性涂层剂。
表1
比较例7
将异丙醇制备为亲水性改性涂层剂。
比较例8
将包含二酯(Di-ester)20重量百分比及余量的丙二醇化合物的溶液制备为亲水性改性涂层剂。
比较例9
将作为硅氧烷类亲水性改性涂层剂的CTFA(二甲基硅氧烷(Dimethylsiloxane)、3-(3-((3-椰油酰胺丙基)二甲基氨基)-2-羟基丙氧基)丙基封端乙酸酯(3-(3-((3-cocoamidopropyl)dimethylammonio)-2-hydroxyprpoxy)propyl groupterminatedacetate)/CAS 134737-05-6)制备为亲水性改性涂层剂。
实验例1:亲水性改性涂层剂的粘度及pH的测定
测定在上述实施例1~7及比较例1~9中制备的亲水性改性涂层剂的各个粘度及pH,将其结果示于下列表2中。
此时,根据ASTM D7042标准测试(20℃)测定粘度,pH为以10重量百分比浓度将亲水性改性涂层剂溶解于水中的溶液的pH,在20℃下分析。
表2
察看表2的改性涂层剂的物性测定结果,实施例1~7呈现粘度为990mPa.s~1060mPa.s,pH为5.2~6.3及熔点为-3℃~1℃范围的适当物性范围。相反,在使用小于15重量百分比的钠盐的比较例1中,相比于实施例1及实施例2,存在pH急剧变低而酸化的问题,在使用大于20重量百分比的钠盐的比较例2中,相比于实施例1及实施例3,呈现pH急剧增加的倾向。
并且,察看实施例6~7及比较例5~6的熔点,可确认磷酸盐含量影响改性涂层剂的熔点,可确认当磷酸盐使用量减少时,具有改性剂的熔点增加的倾向,比较例5中熔点最高,比较实施例7和比较例6,即使磷酸盐大于8重量百分比,也呈现无熔点降低的倾向。
制备例1:亲水性改性的细胞无毒性无纺布的制备
制备由平均直径为17μm的聚丙烯纤维制备而成的克重为18gsm的纺粘无纺布(制造商东丽先端材料,商品名称LIVSEN)。
然后,以吻辊涂敷方式将在上述实施例1中制备的亲水性改性涂层剂涂敷于无纺布并干燥。
然后,在滚筒烘干机中在约125℃~130℃温度条件下,制备通过热处理改性为亲水性的细胞无毒性无纺布。
制备的细胞无毒性无纺布内亲水性改性涂层剂含量为约0.7重量百分比。
制备例2~7及比较制备例1~11
以与上述制备例1相同的方法制备亲水性改性的无纺布,分别制备分别使用在实施例2~5及比较例1~9中准备的亲水性改性涂层剂替代实施例1的亲水性改性涂层剂来改性为亲水性的无纺布,如下列表3中所示,分别实施制备例2~7及比较制备例1~11。
表3
实验例1:液体的吸收速度(穿透(Strike through))的评价
以10cm×10cm(横向×纵向)的大小切割在制备例及比较制备例中制备的无纺布,准备测定试样。
之后,根据WSP 70.3(08)(使用模拟尿液的无纺布覆盖物液体穿透时间的标准测试方法(Standard Test Method for Nonwoven Coverstock Liquid Strike-ThroughTime Using Simulated Urine))测定上述测定试样的吸收速度(具体为亲水性无纺布层的液体吸收速度),将其结果示于下列表4中。针对同类测定试样将吸收度各测定10次之后,将其平均值记录为最终吸收速度。具体地,将上述测定试样放置于吸收纸上之后,将通过上述吸收纸均吸收0.9重量百分比NaCl水溶液5ml的时间评价为吸收速度。
实验例2:耐久吸收度的评价
以10cm×10cm(横向×纵向)的大小切割在制备例及比较制备例中制备的无纺布,准备测定试样。
之后,根据WSP 70.7(09)(无纺布重复液体穿透时间的标准测试方法(StandardTest method for Nonwoven-Repeated Liquid Strike-Through Time))测定上述测定试样的耐久吸收度(具体为亲水性无纺布层的反复吸收度),将其结果示于下列表4中。针对同类测定试样将耐久吸收度各测定3次之后,记录为耐久吸收度。具体地,将上述测定试样放置于吸收纸上之后,将经过一次、两次、三次通过上述吸收纸吸收0.9重量百分比NaCl水溶液5ml共15ml的时间评价为耐久吸收度,评价记录中分别记录一次、两次、三次。
实验例3:再湿润性(Re-wet)的评价
利用根据上述实验例1评价液体的吸收度的测定试样,并根据WSP 70.8(09)(重复穿透时间后湿回的标准测试方法(Standard Test method for Wetback After RepeatedStrike-Through Time))测定上述测定试样的再湿润性(具体为亲水性无纺布层的再湿润性),将其结果示于下列表4中。具体地,将根据上述评价例1评价液体的吸收度的测定试样放置于新的吸收纸上之后,将0.9重量百分比NaCl水溶液20ml放入上述吸收纸,对上述测定试样施加5kg的负载之后,利用上述测定试样测定反过来再吸收的液体量,记录为再湿润性。
实验例4:细胞毒性的评价
从在制备例及比较制备例中制备的无纺布中采集试样,通过ISO10993-5(医疗器械生物学评价第5部分:体外细胞毒性试验(Biological evaluation of medicaldevices-Part 5:Tests for in-vitro cytotoxicity))方法分析IC50(抑制浓度(inhibition concentration)50,菌落形成抑制浓度),将其结果示于下列表4中。IC50评价结果为70%~100%时评价为细胞无毒性无纺布。
表4
察看上述表4的物性测定结果,可确认在制备例1~9中,将由疏水性纤维制备而成的无纺布改性为亲水性,液体吸收速度快,对反复吸收的耐久性(耐久吸收度)及再湿润性优秀,无细胞毒性。相反,在使用小于0.1重量百分比的亲水性改性涂层剂的比较制备例1中,相比于制备例1及制备例2,几乎无亲水性改性效果,呈现吸收速度、耐久吸收度及再湿润性非常差的结果。并且,在使用大于3.0重量百分比的亲水性改性涂层剂的比较制备例2中,相比于制备例1及制备例3,亲水性增大效果微弱,再湿润性太高,无纺布反而潮湿,呈现反而只有细胞毒性增加的结果。
在使用实施例2的改性涂层剂的制备例3及使用实施例4的改性涂层剂的制备例4中,相比于制备例1,在亲水性改性方面并无大差异。相反,在使用比较例2的改性涂层剂的比较制备例4中,相比于制备例5,存在再湿润性大大减少的问题。
并且,在使用比较例3的改性涂层剂的比较制备例5中,相比于制备例6(实施例4使用),呈现亲水性提高效果下降的结果,在使用比较例4的改性涂层剂的比较制备例6中,相比于制备例1及制备例7(实施例5使用),亲水性改性效果优秀,但存在毒性急剧增大的问题。
并且,在使用比较例5的改性涂层剂的比较制备例7中,相比于制备例1及制备例8(实施例6使用),吸收速度、耐久吸收度提高效果不完善。并且,在使用比较例6的改性涂层剂的比较制备例8中,相比于制备例1及制备例9(实施例7使用),吸收速度并无大差异,但存在耐久吸收度大大减少,细胞毒性也增加的问题。
可确认与无细胞毒性的本发明(制备例1~9)不同,利用作为现有亲水性改性涂层剂的异丙醇(比较例7)、二酯和丙二醇混合液(比较例8)及CTFA(比较例9)亲水性改性涂敷的无纺布(比较制备例9~11)的亲水性优秀,但存在具有细胞毒性的问题。
可通过上述实施例及实验例确认本发明的亲水性改性涂层剂将疏水性有效改性为亲水性,可确认无细胞毒性。期待可利用这种本发明的亲水性改性涂层剂大大扩张适用用途受限的工业用无纺布和/或卫生用品用无纺布的适用用途范围。
工业利用性
利用本发明的亲水性改性涂层剂改性为亲水性的无纺布可提供工业用无纺布和/或卫生用品用无纺布等多种亲肤且需要亲水性的无纺布产品。
Claims (7)
1.一种用于无纺布的细胞无毒性亲水性改性涂层剂,其特征在于,包含亲水性改性涂层剂,上述亲水性改性涂层剂包含钠盐15重量百分比~20重量百分比、马来酸盐10重量百分比~16重量百分比、磷酸盐2重量百分比~8重量百分比及余量的醇醚类化合物,
其中,上述钠盐包含选自铵α-磺基-ω-(壬基苯氧基)聚(氧-1,2-乙二基)、磺基丁烷二恶烷1,4-双(2-(C1~C3的烷基)(C4~C8的烷基)酯钠盐、牛脂酸钠、椰油酸钠及棕榈仁油酸钠中的一种以上,
上述马来酸盐包含双(2-(C1~C3的烷基)(C4~C8的烷基)苹果酸,
上述磷酸盐包含选自聚(氧-1,2-乙二基)、聚氧乙烯壬基苯基醚磷酸、聚氧乙烯壬基苯基醚磷酸、三(2-乙基己基)磷酸酯、(Z)-α-2-十八烯基-ω-羟基聚(氧-1,2-乙二基)磷酸盐及α-十二烷基-ω-羟基聚氧乙烯磷酸酯钾盐中的一种以上,
上述亲水性改性涂层剂的熔点为-3℃~3℃,
当20℃时,以9重量百分比~12重量百分比浓度,将亲水性改性涂层剂溶解于水中的溶液的pH为5.0~7.0。
2.根据权利要求1所述的用于无纺布的细胞无毒性亲水性改性涂层剂,其特征在于,上述醇醚类化合物包含选自二丙二醇单甲醚、聚乙烯醚、聚乙二醇及醇聚氧乙烯醚中的一种以上。
3.根据权利要求1或2所述的用于无纺布的细胞无毒性亲水性改性涂层剂,其特征在于,根据ASTM D7042标准测试(20℃)测定的粘度为950mPa.s~1100mPa.s。
4.一种用于无纺布的细胞无毒性无纺布的制备方法,其特征在于,包括:
第一步骤,准备无纺布;
第二步骤,将权利要求3所述的细胞无毒性亲水性改性涂层剂涂敷于上述无纺布的一部分或全部;以及
第三步骤,通过热处理使亲水性改性涂层剂热固定于无纺布,将无纺布改性为亲水性,
其中,上述第一步骤的无纺布包含疏水性纤维。
5.一种细胞无毒性无纺布,其为通过将包含疏水性纤维的无纺布的一部分或全部改性为亲水性无纺布而成的无纺布,上述细胞无毒性无纺布的特征在于,在无纺布的总重量中,包含0.1重量百分比~3重量百分比的权利要求3所述的用于无纺布的细胞无毒性亲水性改性涂层剂。
6.根据权利要求5所述的细胞无毒性无纺布,其特征在于,上述疏水性纤维的平均直径为1μm~50μm。
7.根据权利要求5所述的细胞无毒性无纺布,其特征在于,当根据ISO 10993-5方法测定IC50时,细胞存活率为70%~100%。
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