CN106120322A - 一种聚乳酸纤维的亲水改性方法 - Google Patents

一种聚乳酸纤维的亲水改性方法 Download PDF

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CN106120322A
CN106120322A CN201610611480.4A CN201610611480A CN106120322A CN 106120322 A CN106120322 A CN 106120322A CN 201610611480 A CN201610611480 A CN 201610611480A CN 106120322 A CN106120322 A CN 106120322A
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徐卫忠
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Changxin Weifeng Textile Co Ltd
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    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/207Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03Polysaccharides or derivatives thereof
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    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03Polysaccharides or derivatives thereof
    • D06M15/05Cellulose or derivatives thereof
    • D06M15/09Cellulose ethers
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    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
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Abstract

本发明公开了一种聚乳酸纤维的亲水改性方法,可以很大程度改善聚乳酸纤维的亲水性,使得其服用性能大幅提高:(1)制备聚乳酸纤维预处理液:按下列重量份数配备溶液:羟丙基甲基纤维素2份;苹果酸5‑8份;海藻糖0.2‑0.5份;水100份;(2)将聚乳酸纤维投入预处理液中恒温50‑55℃处理5‑8min,洗净,常温干燥;(3)制备聚乳酸纤维处理液:按下列重量份数配备溶液:羟丙基甲基纤维素1份;柠檬酸10份;水100份;(4)将聚乳酸纤维投入处理液中恒温50℃处理15‑20min;(5)将处理后的聚乳酸纤维洗净,40℃烘干。

Description

一种聚乳酸纤维的亲水改性方法
技术领域
本发明涉及一种聚乳酸纤维的亲水改性方法,属于纺织领域。
背景技术
聚乳酸的主要特性是:源于自然资源、可完全生物降解性和低环境负载性。然而聚乳酸在物性上与传统材料做比较时却不占优势,特别是热力学性能,聚乳酸的玻璃环转变温度约为左右,耐热性较差,是阻碍其更广泛应用的主要原因。同时聚乳酸的结晶速度慢,结晶度不高,导致聚乳酸制品在加工成型后是一种半结晶状态或非晶态,常温下是一种硬而脆的热塑性材料,抗冲击性能差。从宏观上看,聚乳酸的缺点是铜性差和耐热变形温度低,作为医用材料时还要考虑其降解性能和使用寿命两者之间的平衡。从微观上看,聚乳酸的微观结构也限制了它的应用,聚乳酸中存在大量疏水的酷键,降低了聚乳酸的生物相容性,降解周期难以控制。同时聚乳酸聚合过程产生的分子量分布过宽,这使材料的强度往往不符合要求。其中高分子量的聚乳酸是热塑性聚合物,无色、有光泽、硬度较大,物性与聚苯乙稀相似,而无定形聚乳酸能被大多数有机溶剂溶解,如四氧呋喃、氯化物溶剂、苯、二氧杂环己焼。乳酸单体具有型和型两种立体异构形式,由于每个重复单元均有一个手性中心,大分子或多或少地具有立体规整性,这对其形态、性能有着强烈地影响,溶点、结晶度等均随立体规整性降低而迅速下降。
聚乳酸在不同的成型加工方法下可制备成薄膜、片材、棒材等。其纤维经过热成型、纺丝等二次加工后在纺织、包装、农业、医疗卫生、日常生活用品等领域也日益广泛的被应用。
本发明旨在提供一种聚乳酸纤维的亲水改性方法,其工艺简单易操作,可以很大程度改善聚乳酸纤维的亲水性,使得其服用性能大幅提高。
发明内容
本发明针对现有技术中的缺点,本发明旨在提供一种聚乳酸纤维的亲水改性方法,其工艺简单易操作,可以很大程度改善聚乳酸纤维的亲水性,使得其服用性能大幅提高。
本发明的目的可以通过以下技术方案实现:
一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸5-8份;
海藻糖0.2-0.5份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温50-55℃处理5-8min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理15-20min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
本发明实施例选用市售得到的PLA纤维,其强力为15.2CN,水接触角为83°。
接触角测定方法:将试样粘贴于接触角测试仪的样品台上,使用喷雾器皿向纤维表面喷水,利用显微镜观察纤维表面的水滴形态,采用量高法计算纤维的水接触角。
力学性能测定方法:在规定的降解时间点取出试样,用去离子水冲洗干净,真空干燥至恒重.使用LLY06E型电子单纤强力测试仪,在恒温条件下,选取隔距长度为10mm,拉伸速度为20mm/min,对试样纤维的拉伸断裂强力进行测试。
本发明的有益之处在于:
(1)本发明工艺简单,易于产业化操作,所用原料安全环保,对环境友好。
(2)本发明的工艺可以很大程度改善聚乳酸纤维的亲水性,使得其服用性能大幅提高,几乎不损伤力学性能。
具体实施方式
实施例1:
一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸5份;
海藻糖0.5份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温50℃处理8min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理15min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
结果:处理后的PLA纤维,其强力为15.1CN,水接触角为51.8°。可见,亲水性大幅度提高,而力学性能几乎不变。
实施例2:
一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸8份;
海藻糖0.2份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温55℃处理5min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理20min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
结果:处理后的PLA纤维,其强力为15.0CN,水接触角为62.3°。可见,亲水性大幅度提高,而力学性能几乎不变。
实施例3:
一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸6份;
海藻糖0.4份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温51℃处理7min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理16min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
结果:处理后的PLA纤维,其强力为15.1CN,水接触角为53.7°。可见,亲水性大幅度提高,而力学性能几乎不变。
实施例4:
一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸7份;
海藻糖0.3份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温54℃处理6min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理19min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
结果:处理后的PLA纤维,其强力为15.0CN,水接触角为60.4°。可见,亲水性大幅度提高,而力学性能几乎不变。
实施例5:
一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸5份;
海藻糖0.5份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温52℃处理5min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理17min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
结果:处理后的PLA纤维,其强力为15.1CN,水接触角为58.6°。可见,亲水性大幅度提高,而力学性能几乎不变。
由此可见,本发明工艺简单,易于产业化操作,所用原料安全环保,对环境友好。本发明的工艺可以很大程度改善聚乳酸纤维的亲水性,使得其服用性能大幅提高,几乎不损伤力学性能。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。

Claims (2)

1.一种聚乳酸纤维的亲水改性方法,其步骤如下:
(1)制备聚乳酸纤维预处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素2份;
苹果酸5-8份;
海藻糖0.2-0.5份;
水100份;
(2)将聚乳酸纤维投入预处理液中恒温50-55℃处理5-8min,洗净,常温干燥;
(3)制备聚乳酸纤维处理液:
按下列重量份数配备溶液:
羟丙基甲基纤维素1份;
柠檬酸10份;
水100份;
(4)将聚乳酸纤维投入处理液中恒温50℃处理15-20min;
(5)将处理后的聚乳酸纤维洗净,40℃烘干。
2.权利要求1所述改性方法制得的改性聚乳酸纤维。
CN201610611480.4A 2016-07-29 2016-07-29 一种聚乳酸纤维的亲水改性方法 Pending CN106120322A (zh)

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CN108660609A (zh) * 2018-05-23 2018-10-16 阳光卫生医疗新材料江阴有限公司 一种抗菌非织造布的制备方法及抗菌非织造布
WO2019053074A1 (de) * 2017-09-14 2019-03-21 Trevira Gmbh Polymerfaser mit verbesserter langzeit-dispergierbarkeit
CN112553901A (zh) * 2020-11-25 2021-03-26 武汉纺织大学 一种高效热交换调温纤维材料和制备方法及其在香烟中的应用
CN112962308A (zh) * 2021-02-08 2021-06-15 安徽工程大学 一种亲水聚乳酸纤维的加工工艺及应用

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019053074A1 (de) * 2017-09-14 2019-03-21 Trevira Gmbh Polymerfaser mit verbesserter langzeit-dispergierbarkeit
CN111094647A (zh) * 2017-09-14 2020-05-01 特雷维拉股份有限公司 具有改善的长期可分散性的聚合物纤维
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CN108660609A (zh) * 2018-05-23 2018-10-16 阳光卫生医疗新材料江阴有限公司 一种抗菌非织造布的制备方法及抗菌非织造布
CN112553901A (zh) * 2020-11-25 2021-03-26 武汉纺织大学 一种高效热交换调温纤维材料和制备方法及其在香烟中的应用
CN112962308A (zh) * 2021-02-08 2021-06-15 安徽工程大学 一种亲水聚乳酸纤维的加工工艺及应用
CN112962308B (zh) * 2021-02-08 2023-03-28 安徽工程大学 一种亲水聚乳酸纤维的加工工艺及应用

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Application publication date: 20161116