CN105862395A - 高导热系数玻璃纤维布及其制造方法 - Google Patents

高导热系数玻璃纤维布及其制造方法 Download PDF

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CN105862395A
CN105862395A CN201610273907.4A CN201610273907A CN105862395A CN 105862395 A CN105862395 A CN 105862395A CN 201610273907 A CN201610273907 A CN 201610273907A CN 105862395 A CN105862395 A CN 105862395A
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glass fabric
thermal conductivity
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CN105862395B (zh
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邵亚国
梁杰
邵爱国
赵中伟
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Yixing Fushide High Frequency Technology Co ltd
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Abstract

本发明涉及一种高导热系数玻璃纤维布及其制造方法,其特征是,包括以下步骤:(1)将20~50%的PTFE乳液、40~60%的SiO2粉体、10~30%的Al2O3粉体、5~20%的氮化硼粉体、5~10%的水、0.1~1%的偶联剂和0.1~1%的消泡剂混合后搅拌均匀,得到胶液;单位为质量百分数;(2)将玻璃纤维布浸润胶液后经挤压辊挤压,由烘箱烘干后得到所述的高导热系数玻璃纤维布。所述步骤(1)中搅拌的温度为45~60℃,搅拌时间为60~90min。所述步骤(2)中玻璃纤维布浸润胶液的车速约为60cm/min。所述步骤(2)中烘干的温度为230~250℃,烘干时间为15~25min。所述高导热系数玻璃纤维布在4℃下的导热系数为1.5~2.6W/mK。本发明能够在保证玻璃纤维布物化性能的同时增大其导热系数。

Description

高导热系数玻璃纤维布及其制造方法
技术领域
本发明涉及一种玻璃纤维布,尤其是一种高导热系数玻璃纤维布及其制造方法。
背景技术
随着电子业的迅猛发展,如今对覆铜板的性能已不仅仅要求覆铜板拥有高介电常数、低介质损耗角正切值、低热膨胀系数等等电气性能和机械性能,同时也要求其具备较高的导热系数,因为电子元器件正越做越小,工作状态下若其热量无法很好的穿透散发,将严重影响其本身以及所组成的元器件或设备的性能,严重时甚至会产生危险。
发明内容
本发明的目的是克服现有技术中存在的不足,提供一种高导热系数玻璃纤维布及其制造方法,能够在保证玻璃纤维布物化性能的同时增大其导热系数。
按照本发明提供的技术方案,一种高导热系数玻璃纤维布,特征是:所述高导热系数玻璃纤维布由玻璃纤维布浸润胶液得到;所述胶液的组份为,组份比例为质量百分数计:20~50%的PTFE乳液、40~60%的SiO2粉体、10~30%的Al2O3粉体、5~20%的氮化硼粉体、5~10%的水、0.1~1%的偶联剂和0.1~1%的消泡剂。
在一个具体实施方式中,所述偶联剂为硅烷偶联剂。
在一个具体实施方式中,所述消泡剂为聚氧丙烯氧化乙烯甘油醚消泡剂。
在一个具体实施方式中,所述PTFE乳液的固含量约为60%。
所述高导热系数玻璃纤维布的制造方法,其特征是,包括以下步骤:
(1)将20~50%的PTFE乳液、40~60%的SiO2粉体、10~30%的Al2O3粉体、5~20%的氮化硼粉体、5~10%的水、0.1~1%的偶联剂和0.1~1%的消泡剂混合后搅拌均匀,得到胶液;单位为质量百分数;
(2)将玻璃纤维布浸润胶液后经挤压辊挤压,由烘箱烘干后得到所述的高导热系数玻璃纤维布。
在一个具体实施方式中,所述步骤(1)中搅拌的温度为45~60℃,搅拌时间为60~90min。
在一个具体实施方式中,所述步骤(2)中玻璃纤维布浸润胶液的车速约为60cm/min。
在一个具体实施方式中,所述步骤(2)中烘干的温度为230~250℃,烘干时间为15~25min。
在一个具体实施方式中,所述高导热系数玻璃纤维布成品的厚度为0.115~0.125mm。
在一个具体实施方式中,所述高导热系数玻璃纤维布在4℃下的导热系数为1.5~2.6W/mK。
本发明所述的高导热系数玻璃纤维布及其制造方法,经过科学的实验配比,加入一定量的氧化铝和氮化硼,可以在保证玻璃纤维布原物化性能的同时增大其导热系数。
具体实施方式
下面结合具体实施例对本发明作进一步说明。
实施例1:一种高导热系数玻璃纤维布的制造方法,包括以下步骤:
(1)将20%的PTFE乳液、59.8%的SiO2粉体、10%的Al2O3粉体、5%的氮化硼粉体、5%的水、0.1%的硅烷偶联剂和0.1%的聚氧丙烯氧化乙烯甘油醚消泡剂混合后搅拌均匀,得到胶液,搅拌的温度为45℃,搅拌时间为90min;单位为质量百分数;所述PTFE乳液的固含量约为60%;
(2)将玻璃纤维布在立式上胶机上浸润胶液,玻璃纤维布的车速约为60cm/min;再经挤压辊挤压排除多余胶液,最后由烘箱烘干,烘干的温度为230℃,烘干时间为25min;烘干后裁切卷曲得到所述的高导热系数玻璃纤维布,所述高导热系数玻璃纤维布成品的厚度为0.115mm;所述高导热系数玻璃纤维布在4℃下的导热系数为1.5W/mK。
实施例2:一种高导热系数玻璃纤维布的制造方法,包括以下步骤:
(1)将35%的PTFE乳液、40%的SiO2粉体、10%的Al2O3粉体、5%的氮化硼粉体、8%的水、1%的硅烷偶联剂和1%的聚氧丙烯氧化乙烯甘油醚消泡剂混合后搅拌均匀,得到胶液,搅拌的温度为50℃,搅拌时间为70min;单位为质量百分数;所述PTFE乳液的固含量约为60%;
(2)将玻璃纤维布在立式上胶机上浸润胶液,玻璃纤维布的车速约为60cm/min;再经挤压辊挤压排除多余胶液,最后由烘箱烘干,烘干的温度为240℃,烘干时间为20min;烘干后裁切卷曲得到所述的高导热系数玻璃纤维布,所述高导热系数玻璃纤维布成品的厚度为0.12mm;所述高导热系数玻璃纤维布在4℃下的导热系数为2W/mK。
实施例3:一种高导热系数玻璃纤维布的制造方法,包括以下步骤:
(1)将30%的PTFE乳液、58%的SiO2粉体、10%的Al2O3粉体、5%的氮化硼粉体、5%的水、1%的硅烷偶联剂和1%的聚氧丙烯氧化乙烯甘油醚消泡剂混合后搅拌均匀,得到胶液,搅拌的温度为60℃,搅拌时间为60min;单位为质量百分数;所述PTFE乳液的固含量约为60%;
(2)将玻璃纤维布在立式上胶机上浸润胶液,玻璃纤维布的车速约为60cm/min;再经挤压辊挤压排除多余胶液,最后由烘箱烘干,烘干的温度为250℃,烘干时间为15min;烘干后裁切卷曲得到所述的高导热系数玻璃纤维布,所述高导热系数玻璃纤维布成品的厚度为0.125mm;所述高导热系数玻璃纤维布在4℃下的导热系数为2.6W/mK。

Claims (10)

1. 一种高导热系数玻璃纤维布,其特征是:所述高导热系数玻璃纤维布由玻璃纤维布浸润胶液得到;所述胶液的组份为,组份比例为质量百分数计:20~50%的PTFE乳液、40~60%的SiO2粉体、10~30%的Al2O3粉体、5~20%的氮化硼粉体、5~10%的水、0.1~1%的偶联剂和0.1~1%的消泡剂。
2.如权利要求1所述的高导热系数玻璃纤维布,其特征是:所述偶联剂为硅烷偶联剂。
3.如权利要求1所述的高导热系数玻璃纤维布,其特征是:所述消泡剂为聚氧丙烯氧化乙烯甘油醚消泡剂。
4.如权利要求1所述的高导热系数玻璃纤维布,其特征是:所述PTFE乳液的固含量约为60%。
5.一种高导热系数玻璃纤维布的制造方法,其特征是,包括以下步骤:
(1)将20~50%的PTFE乳液、40~60%的SiO2粉体、10~30%的Al2O3粉体、5~20%的氮化硼粉体、5~10%的水、0.1~1%的偶联剂和0.1~1%的消泡剂混合后搅拌均匀,得到胶液;单位为质量百分数;
(2)将玻璃纤维布浸润胶液后经挤压辊挤压,由烘箱烘干后得到所述的高导热系数玻璃纤维布。
6.如权利要求5所述的高导热系数玻璃纤维布的制造方法,其特征是:所述步骤(1)中搅拌的温度为45~60℃,搅拌时间为60~90min。
7.如权利要求5所述的高导热系数玻璃纤维布的制造方法,其特征是:所述步骤(2)中玻璃纤维布浸润胶液的车速约为60cm/min。
8.如权利要求5所述的高导热系数玻璃纤维布的制造方法,其特征是:所述步骤(2)中烘干的温度为230~250℃,烘干时间为15~25min。
9.如权利要求5所述的高导热系数玻璃纤维布的制造方法,其特征是:所述高导热系数玻璃纤维布成品的厚度为0.115~0.125mm。
10.如权利要求5所述的高导热系数玻璃纤维布的制造方法,其特征是:所述高导热系数玻璃纤维布在4℃下的导热系数为1.5~2.6W/mK。
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CN112272450A (zh) * 2020-10-27 2021-01-26 陕西科技大学 一种高导热型复合pcb基板及其制备方法
CN113699794A (zh) * 2020-05-21 2021-11-26 南通碧辉石业有限公司 一种钢化大理石背贴纤维网格布的改性方法
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CN113699794A (zh) * 2020-05-21 2021-11-26 南通碧辉石业有限公司 一种钢化大理石背贴纤维网格布的改性方法
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CN112272450B (zh) * 2020-10-27 2022-02-25 陕西科技大学 一种高导热型复合pcb基板及其制备方法

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