CN105882097A - 一种酚醛树脂层压纸板的制备方法 - Google Patents

一种酚醛树脂层压纸板的制备方法 Download PDF

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CN105882097A
CN105882097A CN201610265357.1A CN201610265357A CN105882097A CN 105882097 A CN105882097 A CN 105882097A CN 201610265357 A CN201610265357 A CN 201610265357A CN 105882097 A CN105882097 A CN 105882097A
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李广亮
赵书朋
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Shandong Ao Xing Insulating Materials Co Ltd
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Abstract

本发明属于酚醛树脂领域，尤其涉及一种酚醛树脂层压纸板的制备方法。环氧大豆油具有环氧基和较长的柔性链，本发明通过这一特性进行内增韧，通过环氧基与酚醛树脂进行交联把柔性链引入到酚醛树脂中，进而生产出软质纸基酚醛层压板，邵氏硬度为80～85，解决了酚醛纸板质脆的缺陷，填补了软质酚醛层压板的空白。本发明选用低价位、产量高的植物油类的环氧大豆油做增韧材料，既能达到较理想的增韧效果，又对环境保护起到一定的推动作用。

Description

一种酚醛树脂层压纸板的制备方法
技术领域
本发明属于酚醛树脂领域，尤其涉及一种酚醛树脂层压纸板的制备方法。
背景技术
纸基酚醛树脂层压板因性脆、硬度高且价格低廉而得到广泛的应用，然而由于其邵氏硬度为90～92，硬度较高，在加工过程中会对刀具损伤较大，从而限制了其在某些领域的应用。
发明内容
本发明针对上述现有技术存在的不足，提供一种邵氏硬度在80-85的酚醛树脂层压纸板的制备方法。
本发明解决上述技术问题的技术方案如下：一种酚醛树脂层压纸板的制备方法，步骤如下：
(1)将腰果酚2-6份、苯酚4-8份、甲醛8-9份、氨水0.1-0.15份和三乙醇胺0.03-0.05份加入反应釜中，在80～100℃进行缩聚反应，胶化时间达到160-200s后脱水，脱水完成后，加入8-10份甲醇，生成腰果酚改性酚醛树脂；
(2)取100份步骤(1)制得的腰果酚改性酚醛树脂，加入环氧大豆油，用甲醇调整混合溶液的固含量为55％，并以35r/min的速度混合搅拌30分钟，混合均匀后制得柔性酚醛树脂；
(3)取步骤(2)的酚醛树脂浸润克重为每平米100g木浆纸，施胶量40％-45％，在烘干炉中130-150℃条件下烘干，制成半固化片，在丙酮中的可溶性为80％-85％；
(4)将步骤(3)的半固化片通过叠配后在130-135℃条件下压制4h；
(5)将步骤(4)的压片冷却至20-25℃，制得酚醛树脂层压纸板，在20℃条件下测量硬度为80-85。
进一步，步骤(2)中在-10-0℃条件下加入15份环氧大豆油与100份腰果酚改性酚醛树脂混合。
进一步，步骤(2)中0-20℃条件下加入13份环氧大豆油与100份腰果酚改性酚醛树脂混合。
进一步，步骤(2)中20-40℃条件下加入11份环氧大豆油与100份腰果酚改性酚醛树脂混合。
本发明的有益效果是：
1、环氧大豆油具有环氧基和较长的柔性链，本发明通过这一特性进行内增韧，通过环氧基与酚醛树脂进行交联把柔性链引入到酚醛树脂中，进而生产出软质纸基酚醛层压板，邵氏硬度为80～85，解决了酚醛纸板质脆的缺陷，填补了软质酚醛层压板的空白。
2、本发明选用低价位、产量高的植物油类的环氧大豆油做增韧材料，既能达到较理想的增韧效果，又对环境保护起到一定的推动作用。
具体实施方式
以下结合实例对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
实施例1
一种酚醛树脂层压纸板的制备方法，步骤如下：
(1)将腰果酚40g、苯酚60g、甲醛85g、氨水1.0g和三乙醇胺0.03g加入反应釜中，在80～100℃进行缩聚反应，胶化时间达到160-200s后脱水，脱水完成后，加入80g甲醇，生成腰果酚改性酚醛树脂；
(2)在-10℃-0℃条件下，取100g步骤(1)制得的腰果酚改性酚醛树脂，加入15g环氧大豆油，用甲醇调整混合溶液的固含量为55％，并以35r/min的速度混合搅拌30分钟，混合均匀后制得柔性酚醛树脂；
(3)取步骤(2)的酚醛树脂浸润克重为每平米100g木浆纸，施胶量40％-45％，在烘干炉中130-150℃条件下烘干，制成半固化片，在丙酮中的可溶性为80％-85％；
(4)将步骤(3)的半固化片通过叠配后在130-135℃条件下压制4h；
(5)将步骤(4)的压片冷却至20-25℃，制得酚醛树脂层压纸板，在20℃条件下测量硬度为85。
实施例2
一种酚醛树脂层压纸板的制备方法，步骤如下：
(1)将腰果酚50g、苯酚40g、甲醛80g、氨水1.2g和三乙醇胺0.4g加入反应釜中，在80～100℃进行缩聚反应，胶化时间达到160-200s后脱水，脱水完成后，加入90g甲醇，生成腰果酚改性酚醛树脂；
(2)在0℃-20℃条件下，取100g步骤(1)制得的腰果酚改性酚醛树脂，加入13g环氧大豆油，用甲醇调整混合溶液的固含量为55％，并以35r/min的速度混合搅拌30分钟，混合均匀后制得柔性酚醛树脂；
(3)取步骤(2)的酚醛树脂浸润克重为每平米100g木浆纸，施胶量40％-45％，在烘干炉中130-150℃条件下烘干，制成半固化片，在丙酮中的可溶性为80％-85％；
(4)将步骤(3)的半固化片通过叠配后在130-135℃条件下压制4h；
(5)将步骤(4)的压片冷却至20-25℃，制得酚醛树脂层压纸板，在20℃条件下测量硬度为83。
实施例3
一种酚醛树脂层压纸板的制备方法，步骤如下：
(1)将腰果酚60g、苯酚80g、甲醛90g、氨水1.5g和三乙醇胺0.5g加入反应釜中，在80～100℃进行缩聚反应，胶化时间达到160-200s后脱水，脱水完成后，加入100g甲醇，生成腰果酚改性酚醛树脂；
(2)在20℃-40℃条件下，取100g步骤(1)制得的腰果酚改性酚醛树脂，加入11g环氧大豆油，用甲醇调整混合溶液的固含量为55％，并以35r/min的速度混合搅拌30分钟，混合均匀后制得柔性酚醛树脂；
(3)取步骤(2)的酚醛树脂浸润克重为每平米100g木浆纸，施胶量40％-45％，在烘干炉中130-150℃条件下烘干，制成半固化片，在丙酮中的可溶性为80％-85％；
(4)将步骤(3)的半固化片通过叠配后在130-135℃条件下压制4h；
(5)将步骤(4)的压片冷却至20-25℃，制得酚醛树脂层压纸板，在20℃条件下测量硬度为82。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (4)

1.一种酚醛树脂层压纸板的制备方法，其特征在于，步骤如下：
(1)将腰果酚2-6份、苯酚4-8份、甲醛8-9份、氨水0.1-0.15份和三乙醇胺0.03-0.05份加入反应釜中，在80～100℃进行缩聚反应，胶化时间达到160-200s后脱水，脱水完成后，加入8-10份甲醇，生成腰果酚改性酚醛树脂；
(2)取100份步骤(1)制得的腰果酚改性酚醛树脂，加入环氧大豆油，用甲醇调整混合溶液的固含量为55％，并以35r/min的速度混合搅拌30分钟，混合均匀后制得柔性酚醛树脂；
(3)取步骤(2)的酚醛树脂浸润克重为每平米100g木浆纸，施胶量40％-45％，在烘干炉中130-150℃条件下烘干，制成半固化片，在丙酮中的可溶性为80％-85％；
(4)将步骤(3)的半固化片通过叠配后在130-135℃条件下压制4h；
(5)将步骤(4)的压片冷却至20-25℃，制得酚醛树脂层压纸板，在20℃条件下测量硬度为80-85。
2.根据权利要求1所述的制备方法，其特征在于，步骤(2)中在-10-0℃条件下加入15份环氧大豆油与100份腰果酚改性酚醛树脂混合。
3.根据权利要求1所述的制备方法，其特征在于，步骤(2)中0-20℃条件下加入13份环氧大豆油与100份腰果酚改性酚醛树脂混合。
4.根据权利要求1所述的制备方法，其特征在于，步骤(2)中20-40℃条件下加入11份环氧大豆油与100份腰果酚改性酚醛树脂混合。
CN201610265357.1A 2016-04-26 2016-04-26 一种酚醛树脂层压纸板的制备方法 Pending CN105882097A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115874489A (zh) * 2022-12-07 2023-03-31 山东仁丰特种材料股份有限公司 一种复合碳纸及制备方法、电池

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Publication number Priority date Publication date Assignee Title
CN101096405A (zh) * 2007-06-20 2008-01-02 招远金宝电子有限公司 腰果苯酚改性酚醛树脂及用于制造纸基层压板的方法
CN102408672A (zh) * 2011-08-05 2012-04-11 江苏星源航天材料股份有限公司 腰果酚改性酚醛树脂的生产方法
CN102555383A (zh) * 2012-02-09 2012-07-11 江阴市明康绝缘玻纤有限公司 腰果酚改性酚醛纸基覆铜板的制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101096405A (zh) * 2007-06-20 2008-01-02 招远金宝电子有限公司 腰果苯酚改性酚醛树脂及用于制造纸基层压板的方法
CN102408672A (zh) * 2011-08-05 2012-04-11 江苏星源航天材料股份有限公司 腰果酚改性酚醛树脂的生产方法
CN102555383A (zh) * 2012-02-09 2012-07-11 江阴市明康绝缘玻纤有限公司 腰果酚改性酚醛纸基覆铜板的制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115874489A (zh) * 2022-12-07 2023-03-31 山东仁丰特种材料股份有限公司 一种复合碳纸及制备方法、电池
CN115874489B (zh) * 2022-12-07 2024-02-13 山东仁丰特种材料股份有限公司 一种复合碳纸及制备方法、电池

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Application publication date: 20160824