CN110607693A - 碳纤维pa66热塑性复合材料中碳纤维的改性方法 - Google Patents

碳纤维pa66热塑性复合材料中碳纤维的改性方法 Download PDF

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CN110607693A
CN110607693A CN201910911767.2A CN201910911767A CN110607693A CN 110607693 A CN110607693 A CN 110607693A CN 201910911767 A CN201910911767 A CN 201910911767A CN 110607693 A CN110607693 A CN 110607693A
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carbon fiber
thermoplastic composite
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蔡福泉
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Anhui Cxs New Material Co Ltd
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Abstract

本发明涉及一种碳纤维PA66热塑性复合材料，特别涉及一种碳纤维PA66热塑性复合材料中碳纤维的改性方法。本发明提供了如下技术方案：一种碳纤维PA66热塑性复合材料中碳纤维的改性方法，步骤如下：a、将碳纤维投入有机溶液中实施浸泡；b、将步骤a中完成浸泡的碳纤维进行干燥，促使碳纤维表面形成有机层；c、将步骤c中表面具有有机层的碳纤维进行低温处理；d、将步骤c中实施低温处理的碳纤维的表面进行氧化处理。采用上述技术方案，提供了一种经过改性后，碳纤维易于粘接、粘接强度高的碳纤维PA66热塑性复合材料中碳纤维的改性方法。

Description

碳纤维PA66热塑性复合材料中碳纤维的改性方法
技术领域
本发明涉及一种碳纤维PA66热塑性复合材料，特别涉及一种碳纤维PA66热塑性复合材料中碳纤维的改性方法。
背景技术
碳纤维复合材料是复合材料中的一个重要分支，由于其性能优异，近年来这种材料的用途及产量逐步扩大。其本身具有成型快、易回收等特点。
碳纤维PA66热塑性复合材料主要是由PA66基料、碳纤维及相关助剂配比而成。其中的碳纤维虽然具有高强度、高比模量、低密度、耐高温、耐化学腐蚀、低电阻等特性，然而其本身的粘接强度较低，在使用过程中易受损。
发明内容
针对现有技术存在的不足，本发明提供了一种经过改性后，碳纤维易于粘接、粘接强度高的碳纤维PA66热塑性复合材料中碳纤维的改性方法。
为实现上述目的，本发明提供了如下技术方案：一种碳纤维PA66热塑性复合材料中碳纤维的改性方法，其特征在于，步骤如下：a、将碳纤维投入有机溶液中实施浸泡；b、将步骤a中完成浸泡的碳纤维进行干燥，促使碳纤维表面形成有机层；c、将步骤c中表面具有有机层的碳纤维进行低温处理；d、将步骤c中实施低温处理的碳纤维的表面进行氧化处理。
进一步为：步骤a中的有机溶液为酚醛树脂浆液或脂肪烃溶液中的任意一种，所述的浸泡时间为4h—5h。
步骤步骤c中的低温处理的温度为180℃—220℃；所述的碳纤维为聚丙烯腈基碳纤维、石油沥青基碳纤维或煤沥青基碳纤维中的任意一种。
步骤d中的氧化处理采用氧化气体对碳纤维表面实施处理，该氧化气体为氯气或二氧化硫与氩气或氦气的混合气体。
采用上述技术方案，通过将碳纤维经过有机溶液的浸泡，使之表面形成有机层，该有机层便可使碳纤维具有较好的粘接性；然后对其实施低温处理，使其表面的有机层能够与碳纤维之间完全实施融合，提高了有机层与碳纤维之间的相容性。
具体实施方式
本发明为一种碳纤维PA66热塑性复合材料中碳纤维的改性方法，步骤如下：a、将碳纤维投入有机溶液中实施浸泡；b、将步骤a中完成浸泡的碳纤维进行干燥，促使碳纤维表面形成有机层；c、将步骤c中表面具有有机层的碳纤维进行低温处理；d、将步骤c中实施低温处理的碳纤维的表面进行氧化处理。上述方案中，通过将碳纤维经过有机溶液的浸泡，使之表面形成有机层，该有机层便可使碳纤维具有较好的粘接性；然后对其实施低温处理，使其表面的有机层能够与碳纤维之间完全实施融合，提高了有机层与碳纤维之间的相容性。
在本发明实施例中，步骤a中的有机溶液为酚醛树脂浆液或脂肪烃溶液中的任意一种，浸泡时间为4h—5h。步骤步骤c中的低温处理的温度为180℃—220℃；经过上述温度处理后，还需保温1h—1.5h。本发明实施例中的碳纤维为聚丙烯腈基碳纤维、石油沥青基碳纤维或煤沥青基碳纤维中的任意一种。当然，也可为粘胶基碳纤维、酚醛基碳纤维、气相生长碳纤维，都是可行的。
在本发明实施例中，步骤d中的氧化处理采用氧化气体对碳纤维表面实施处理，该氧化气体为氯气或二氧化硫与氩气或氦气的混合气体。当然，也可为二氧化氮与氡气的混合气体，也是可行的。

Claims (5)

1.一种碳纤维PA66热塑性复合材料中碳纤维的改性方法，其特征在于，步骤如下：a、将碳纤维投入有机溶液中实施浸泡；b、将步骤a中完成浸泡的碳纤维进行干燥，促使碳纤维表面形成有机层；c、将步骤c中表面具有有机层的碳纤维进行低温处理；d、将步骤c中实施低温处理的碳纤维的表面进行氧化处理。
2.根据权利要求1所述的碳纤维PA66热塑性复合材料中碳纤维的改性方法，其特征在于：所述的步骤a中的有机溶液为酚醛树脂浆液或脂肪烃溶液中的任意一种，所述的浸泡时间为4h—5h。
3.根据权利要求1或2所述的碳纤维PA66热塑性复合材料中碳纤维的改性方法，其特征在于：所述的步骤步骤c中的低温处理的温度为180℃—220℃；所述的碳纤维为聚丙烯腈基碳纤维、石油沥青基碳纤维或煤沥青基碳纤维中的任意一种。
4.根据权利要求1或2所述的碳纤维PA66热塑性复合材料中碳纤维的改性方法，其特征在于：所述的步骤d中的氧化处理采用氧化气体对碳纤维表面实施处理，该氧化气体为氯气或二氧化硫与氩气或氦气的混合气体。
5.根据权利要求3所述的碳纤维PA66热塑性复合材料中碳纤维的改性方法，其特征在于：所述的步骤d中的氧化处理采用氧化气体对碳纤维表面实施处理，该氧化气体为氯气或二氧化硫与氩气或氦气的混合气体。
CN201910911767.2A 2019-09-25 2019-09-25 碳纤维pa66热塑性复合材料中碳纤维的改性方法 Pending CN110607693A (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03227325A (ja) * 1990-01-31 1991-10-08 Nobuatsu Watanabe 炭素繊維の表面改質方法
CN102311616A (zh) * 2010-12-30 2012-01-11 深圳市科聚新材料有限公司 一种碳纤维增强聚酯复合材料及其制备方法
CN102851940A (zh) * 2012-08-30 2013-01-02 西北工业大学 一种超声波增强的碳纤维表面液态化学改性的方法
CN106245319A (zh) * 2016-08-11 2016-12-21 西北工业大学 一种碳纤维的表面改性方法
CN108642882A (zh) * 2018-05-09 2018-10-12 东华大学 一种碳纤维表面改性的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03227325A (ja) * 1990-01-31 1991-10-08 Nobuatsu Watanabe 炭素繊維の表面改質方法
CN102311616A (zh) * 2010-12-30 2012-01-11 深圳市科聚新材料有限公司 一种碳纤维增强聚酯复合材料及其制备方法
CN102851940A (zh) * 2012-08-30 2013-01-02 西北工业大学 一种超声波增强的碳纤维表面液态化学改性的方法
CN106245319A (zh) * 2016-08-11 2016-12-21 西北工业大学 一种碳纤维的表面改性方法
CN108642882A (zh) * 2018-05-09 2018-10-12 东华大学 一种碳纤维表面改性的方法

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Application publication date: 20191224