CN107779160A - 一种电路板专用高阻燃聚氨酯粘合剂 - Google Patents

一种电路板专用高阻燃聚氨酯粘合剂 Download PDF

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CN107779160A
CN107779160A CN201711090266.XA CN201711090266A CN107779160A CN 107779160 A CN107779160 A CN 107779160A CN 201711090266 A CN201711090266 A CN 201711090266A CN 107779160 A CN107779160 A CN 107779160A
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李长峰
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ANHUI RUIFA COMPOSITES MANUFACTURING Co Ltd
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Abstract

本发明公开了一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇30‑50份、4,4'‑二苯基甲烷二异氰酸酯45‑60份、乙二醇二甲醚3‑15份、1，4‑丁二醇2‑10份、4,4'‑二氨基‑3,3'‑二氯二苯甲烷1‑4份、催化剂0.2‑1.5份、改性硼酸锌3‑12份、双酚A双(二苯基磷酸酯)1‑5份、己二酸二辛酯2‑8份、纳米氧化铝0.5‑2份。本发明提出的电路板专用高阻燃聚氨酯粘合剂，其阻燃性能优异，耐热性好，粘结强度高，能满足电路板粘合剂的使用要求。

Description

一种电路板专用高阻燃聚氨酯粘合剂
技术领域
本发明涉及电路板材料技术领域，尤其涉及一种电路板专用高阻燃聚氨酯粘合剂。
背景技术
聚氨酯是一类由软、硬段构成的-(AB)n-型嵌段共聚物，因其同时具有橡胶和塑料的一些基本特性，又有着其它高分子聚合材料所不具有的特殊物理性能，如较强的粘结能力，较高的机械强度，很好的耐高温、低温性及耐候性等等，所以聚氨酯粘合剂材料是发展最快、用途最广的一种新材料，目前已被广泛应用在了电路板中。随着社会的发展，人们对电路板的性能提出了更高的要求，但是聚氨酯作为有机材料，存在易燃烧的缺陷，当其应用于电路板中时存在阻燃性能欠佳的缺陷。
发明内容
基于背景技术存在的技术问题，本发明提出了一种电路板专用高阻燃聚氨酯粘合剂，其阻燃性能优异，耐热性好，粘结强度高，能满足电路板粘合剂的使用要求。
本发明提出的一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇30-50份、4,4'-二苯基甲烷二异氰酸酯45-60份、乙二醇二甲醚3-15份、1，4-丁二醇2-10份、4,4'-二氨基-3,3'-二氯二苯甲烷1-4份、催化剂0.2-1.5份、改性硼酸锌3-12份、双酚A双(二苯基磷酸酯)1-5份、己二酸二辛酯2-8份、纳米氧化铝0.5-2份。
优选地，所述催化剂为乙二酸、水杨酸、1,2-二甲基咪唑、2,2-双吗啉基二乙基醚中的一种或者多种的混合物。
优选地，所述改性硼酸锌按照以下工艺进行制备：将硼酸锌和硅烷偶联剂KH-570加入乙醇中，调节pH值为3-4，在55-65℃下搅拌50-80min，过滤、洗涤、干燥得到物料A；将9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物加入甲苯中，通入氮气后升温至75-85℃，搅拌均匀后加入物料A，回流反应25-30h，反应结束后经洗涤、干燥得到所述改性硼酸锌。
优选地，在改性硼酸锌的制备过程中，硼酸锌、硅烷偶联剂KH-570的重量比为10-25：2-5。
优选地，调节pH值所用试剂为草酸、磷酸、盐酸中的一种或者多种的混合物。
优选地，调节pH值所用试剂为草酸。
优选地，9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物、物料A的重量比为30-45：20-35。
本发明所述电路板专用高阻燃聚氨酯粘合剂，其以聚四氢呋喃醚二醇、4,4'-二苯基甲烷二异氰酸酯为原料，同时加入了乙二醇二甲醚为稀释剂，1，4-丁二醇、4,4'-二氨基-3,3'-二氯二苯甲烷为扩链剂，使得到的粘合剂具有优异的冲击韧性和强度；优选方式中，首先利用硅烷偶联剂KH-570对硼酸锌进行了改性，将双键结合到了硼酸锌的表面，得到了物料A，之后将物料A与9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物混合，通过控制反应的条件，使9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物与物料A发生了加成反应，得到了改性硼酸锌，将其加入体系中，在粘合剂燃烧的过程中，改性硼酸锌分解生成的氧化锌、氧化硼、二氧化硅、五氧化二磷存在正向助催化作用，协同促进了材料的成炭能力，与体系中的双酚A双(二苯基磷酸酯)、纳米氧化铝配合后，赋予粘合剂优异的阻燃性和耐热性。
具体实施方式
下面，通过具体实施例对本发明的技术方案进行详细说明。
实施例1
本发明提出的一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇50份、4,4'-二苯基甲烷二异氰酸酯45份、乙二醇二甲醚15份、1，4-丁二醇2份、4,4'-二氨基-3,3'-二氯二苯甲烷4份、催化剂0.2份、改性硼酸锌12份、双酚A双(二苯基磷酸酯)1份、己二酸二辛酯8份、纳米氧化铝0.5份。
实施例2
本发明提出的一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇30份、4,4'-二苯基甲烷二异氰酸酯60份、乙二醇二甲醚3份、1，4-丁二醇10份、4,4'-二氨基-3,3'-二氯二苯甲烷1份、催化剂1.5份、改性硼酸锌3份、双酚A双(二苯基磷酸酯)5份、己二酸二辛酯2份、纳米氧化铝2份。
实施例3
本发明提出的一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇43份、4,4'-二苯基甲烷二异氰酸酯50份、乙二醇二甲醚4份、1，4-丁二醇4份、4,4'-二氨基-3,3'-二氯二苯甲烷2份、乙二酸0.6份、改性硼酸锌10份、双酚A双(二苯基磷酸酯)2份、己二酸二辛酯6份、纳米氧化铝1份；
其中，所述改性硼酸锌按照以下工艺进行制备：将硼酸锌和硅烷偶联剂KH-570加入乙醇中，其中，硼酸锌、硅烷偶联剂KH-570的重量比为10：5，调节pH值为3，其中，调节pH值所用试剂为磷酸、盐酸的混合物，在55℃下搅拌50min，过滤、洗涤、干燥得到物料A；将9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物加入甲苯中，通入氮气后升温至85℃，搅拌均匀后加入物料A，其中，9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物、物料A的重量比为45：20，回流反应25h，反应结束后经洗涤、干燥得到所述改性硼酸锌。
实施例4
本发明提出的一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇38份、4,4'-二苯基甲烷二异氰酸酯57份、乙二醇二甲醚12份、1，4-丁二醇8份、4,4'-二氨基-3,3'-二氯二苯甲烷3.6份、水杨酸1份、1,2-二甲基咪唑0.3份、改性硼酸锌5份、双酚A双(二苯基磷酸酯)4份、己二酸二辛酯3份、纳米氧化铝1.7份；
其中，所述改性硼酸锌按照以下工艺进行制备：将硼酸锌和硅烷偶联剂KH-570加入乙醇中，其中，硼酸锌、硅烷偶联剂KH-570的重量比为25：2，调节pH值为4，其中，调节pH值所用试剂为草酸，在65℃下搅拌80min，过滤、洗涤、干燥得到物料A；将9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物加入甲苯中，通入氮气后升温至75℃，搅拌均匀后加入物料A，其中，9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物、物料A的重量比为30：35，回流反应30h，反应结束后经洗涤、干燥得到所述改性硼酸锌。
实施例5
本发明提出的一种电路板专用高阻燃聚氨酯粘合剂，其原料按重量份包括：聚四氢呋喃醚二醇45份、4,4'-二苯基甲烷二异氰酸酯55份、乙二醇二甲醚9份、1，4-丁二醇7份、4,4'-二氨基-3,3'-二氯二苯甲烷3份、催化剂1份、改性硼酸锌10份、双酚A双(二苯基磷酸酯)3份、己二酸二辛酯6份、纳米氧化铝1份；
其中，所述催化剂为乙二酸、水杨酸、1,2-二甲基咪唑、2,2-双吗啉基二乙基醚的混合物，且乙二酸、水杨酸、1,2-二甲基咪唑、2,2-双吗啉基二乙基醚的重量比为1：3：2：1；
所述改性硼酸锌按照以下工艺进行制备：将硼酸锌和硅烷偶联剂KH-570加入乙醇中，其中，硼酸锌、硅烷偶联剂KH-570的重量比为20：3，调节pH值为3，其中，调节pH值所用试剂为草酸、磷酸、盐酸的混合物，在60℃下搅拌60min，过滤、洗涤、干燥得到物料A；将9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物加入甲苯中，通入氮气后升温至80℃，搅拌均匀后加入物料A，其中，9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物、物料A的重量比为40：37，回流反应27h，反应结束后经洗涤、干燥得到所述改性硼酸锌。
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 (7)

1.一种电路板专用高阻燃聚氨酯粘合剂，其特征在于，其原料按重量份包括：聚四氢呋喃醚二醇30-50份、4,4'-二苯基甲烷二异氰酸酯45-60份、乙二醇二甲醚3-15份、1，4-丁二醇2-10份、4,4'-二氨基-3,3'-二氯二苯甲烷1-4份、催化剂0.2-1.5份、改性硼酸锌3-12份、双酚A双(二苯基磷酸酯)1-5份、己二酸二辛酯2-8份、纳米氧化铝0.5-2份。
2.根据权利要求1所述电路板专用高阻燃聚氨酯粘合剂，其特征在于，所述催化剂为乙二酸、水杨酸、1,2-二甲基咪唑、2,2-双吗啉基二乙基醚中的一种或者多种的混合物。
3.根据权利要求1或2所述电路板专用高阻燃聚氨酯粘合剂，其特征在于，所述改性硼酸锌按照以下工艺进行制备：将硼酸锌和硅烷偶联剂KH-570加入乙醇中，调节pH值为3-4，在55-65℃下搅拌50-80min，过滤、洗涤、干燥得到物料A；将9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物加入甲苯中，通入氮气后升温至75-85℃，搅拌均匀后加入物料A，回流反应25-30h，反应结束后经洗涤、干燥得到所述改性硼酸锌。
4.根据权利要求3所述电路板专用高阻燃聚氨酯粘合剂，其特征在于，在改性硼酸锌的制备过程中，硼酸锌、硅烷偶联剂KH-570的重量比为10-25：2-5。
5.根据权利要求3或4所述电路板专用高阻燃聚氨酯粘合剂，其特征在于，调节pH值所用试剂为草酸、磷酸、盐酸中的一种或者多种的混合物。
6.根据权利要求3-5中任一项所述电路板专用高阻燃聚氨酯粘合剂，其特征在于，调节pH值所用试剂为草酸。
7.根据权利要求3-6中任一项所述电路板专用高阻燃聚氨酯粘合剂，其特征在于，9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物、物料A的重量比为30-45：20-35。
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