CN111978900A - 一种板材生产用浸渍胶的生产工艺 - Google Patents

一种板材生产用浸渍胶的生产工艺 Download PDF

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CN111978900A
CN111978900A CN202010834062.8A CN202010834062A CN111978900A CN 111978900 A CN111978900 A CN 111978900A CN 202010834062 A CN202010834062 A CN 202010834062A CN 111978900 A CN111978900 A CN 111978900A
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郭长城
赵正中
魏辰宇
张义欣
潘振友
郭永胜
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Shandong Fortune Wood Industry Group Co ltd
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    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
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Abstract

本发明公开了一种板材生产用浸渍胶的生产工艺，包括以下步骤：步骤一、准备尿素、氨水、三聚氰胺、乌洛托品、聚乙烯醇、水、甲醛溶液、甲酸和氢氧化钠；步骤二、将甲醛溶液打入反应釜，加入氨水搅拌；步骤三、加入半量尿素、乌洛托品，三聚氰胺、聚乙烯醇和水，调ph9.0；步骤四、搅拌后开蒸汽升温，缓慢升至80‑90℃，保温20‑40min；步骤五、催化反应，用甲酸调ph6.0，缓慢反应；步骤六、用氢氧化钠调ph9.0，保温25‑35min后开水降温；步骤七、降温至65‑75℃加入二次尿素，关水保温搅拌15‑25min；步骤八、再次进行开水降温，温度降至50度，测ph8.0，即可放料。本发明与现有技术相比的优点在于：具有阻燃、耐磨、硬度高、较强的胶结强度的特点，同时有效避免浸渍板材开裂情况。

Description

一种板材生产用浸渍胶的生产工艺
技术领域
本发明涉及浸渍胶技术领域，具体是指一种板材生产用浸渍胶的生产工艺。
背景技术
目前国内外在建筑物内墙装饰和家具制作中流行板材装饰，尤其是纸质阻燃装饰板，现有技术中生产阻燃装饰板，为降低成本，且适应消费者的需求，生产厂家针对胶和纸进行改进。生产纸质阻燃装饰板用的浸渍胶有多种，较早的以苯酚和甲醛为主的酚醛胶，其中的游离酚、游离醛含量高，污染严重。随着环保意识的增强，人们逐步改良浸渍胶，通过低成本的三聚氰胺替代原30％左右的高成本的苯酚进行改性，降低了成本，增加了板材的防火功能，而且减少了苯酚用量，降低了对室内空气的影响，但是不可避免易产生裂纹的缺陷。
发明内容
本发明要解决的技术问题是克服以上技术缺陷，提供一种浸渍后板材阻燃效果更好，具有很强的胶接强度，较高的耐沸水能力，低温固化能力，硬度高，不易开裂且耐磨耐用的一种板材生产用浸渍胶的生产工艺。
为解决上述技术问题，本发明提供的技术方案为：一种板材生产用浸渍胶的生产工艺，包括以下步骤：
步骤一、准备尿素130-180份、氨水20-30份、三聚氰胺12-18份、乌洛托品3-5份、聚乙烯醇6-11份、水10-15份、质量百分比浓度为35-40％的甲醛溶液260-360份以及用于调ph的甲酸和氢氧化钠；
步骤二、将甲醛溶液打入反应釜，打开搅拌器，加入氨水搅拌8-15min；
步骤三、加入半量尿素、乌洛托品，三聚氰胺、聚乙烯醇和水，调ph9.0；
步骤四、搅拌15-25min后开蒸汽升温，缓慢升至80-90℃，保温20-40min；
步骤五、催化反应，用甲酸调ph6.0，缓慢反应，40-50min反应完成；
步骤六、用氢氧化钠调ph9.0，保温25-35min后开水降温；
步骤七、降温至65-75℃加入二次尿素，关水保温搅拌15-25min；
步骤八、再次进行开水降温，温度降至50度，测ph8.0，即可放料。
进一步的，步骤一中选用质量百分比浓度为36.5％的甲醛溶液，最终得到的浸渍胶质量效果最好。
进一步的，步骤五反应过程中取样滴入10℃清水，观察反应雾化，查看反应进度。
进一步的，步骤五中带反应完成后，涂四杯测粘度6-8秒。
本发明与现有技术相比的优点在于：以甲醛、尿素、氨水、三聚氰胺为主要原料，制得同时含有三聚氰胺甲醛树脂和脲醛树脂的浸渍胶，具有三聚氰胺甲醛树脂的阻燃、耐磨、硬度高、较强的胶结强度的特点，脲醛树脂的加入有效避免板材开裂缺陷，改善产品缺陷，降低生产成本，提高产品质量。
具体实施方式
实施例一
一种板材生产用浸渍胶的生产工艺，包括以下步骤：
步骤一、准备尿素150份、氨水25份、三聚氰胺15份、乌洛托品4份、聚乙烯醇8份、水12份、质量百分比浓度为36.5％的甲醛溶液300份以及用于调ph的甲酸和氢氧化钠；
步骤二、将甲醛溶液打入反应釜，打开搅拌器，加入氨水搅拌12min；
步骤三、加入半量尿素、乌洛托品，三聚氰胺、聚乙烯醇和水，调ph9.0；
步骤四、搅拌20min后开蒸汽升温，缓慢升至85℃，保温30min；
步骤五、催化反应，用甲酸调ph6.0，缓慢反应，中取样滴入10℃清水，观察反应雾化，45min反应完成，涂四杯测粘度6-8秒；
步骤六、用氢氧化钠调ph9.0，保温30min后开水降温；
步骤七、降温至70℃加入二次尿素，关水保温搅拌20min；
步骤八、再次进行开水降温，温度降至50度，测ph8.0，即可放料。
实施例二
一种板材生产用浸渍胶的生产工艺，包括以下步骤：
步骤一、准备尿素130份、氨水20-份、三聚氰胺12份、乌洛托品3份、聚乙烯醇6份、水10份、质量百分比浓度为36.5％的甲醛溶液260份以及用于调ph的甲酸和氢氧化钠；
步骤二、将甲醛溶液打入反应釜，打开搅拌器，加入氨水搅拌8min；
步骤三、加入半量尿素、乌洛托品，三聚氰胺、聚乙烯醇和水，调ph9.0；
步骤四、搅拌15min后开蒸汽升温，缓慢升至85℃，保温30min；
步骤五、催化反应，用甲酸调ph6.0，缓慢反应，中取样滴入10℃清水，观察反应雾化，40min反应完成，涂四杯测粘度6-8秒；
步骤六、用氢氧化钠调ph9.0，保温30min后开水降温；
步骤七、降温至70℃加入二次尿素，关水保温搅拌20min；
步骤八、再次进行开水降温，温度降至50度，测ph8.0，即可放料。
实施例三
一种板材生产用浸渍胶的生产工艺，包括以下步骤：
步骤一、准备尿素180份、氨水30份、三聚氰胺18份、乌洛托品5份、聚乙烯醇11份、水15份、质量百分比浓度为36.5％的甲醛溶液360份以及用于调ph的甲酸和氢氧化钠；
步骤二、将甲醛溶液打入反应釜，打开搅拌器，加入氨水搅拌15min；
步骤三、加入半量尿素、乌洛托品，三聚氰胺、聚乙烯醇和水，调ph9.0；
步骤四、搅拌25min后开蒸汽升温，缓慢升至85℃，保温30min；
步骤五、催化反应，用甲酸调ph6.0，缓慢反应，中取样滴入10℃清水，观察反应雾化，50min反应完成，涂四杯测粘度6-8秒；
步骤六、用氢氧化钠调ph9.0，保温30min后开水降温；
步骤七、降温至70℃加入二次尿素，关水保温搅拌20min；
步骤八、再次进行开水降温，温度降至50度，测ph8.0，即可放料。

Claims (4)

1.一种板材生产用浸渍胶的生产工艺，其特征在于，包括以下步骤：
步骤一、准备尿素130-180份、氨水20-30份、三聚氰胺12-18份、乌洛托品3-5份、聚乙烯醇6-11份、水10-15份、质量百分比浓度为35-40％的甲醛溶液260-360份以及用于调ph的甲酸和氢氧化钠；
步骤二、将甲醛溶液打入反应釜，打开搅拌器，加入氨水搅拌8-15min；
步骤三、加入半量尿素、乌洛托品，三聚氰胺、聚乙烯醇和水，调ph9.0；
步骤四、搅拌15-25min后开蒸汽升温，缓慢升至80-90℃，保温20-40min；
步骤五、催化反应，用甲酸调ph6.0，缓慢反应，40-50min反应完成；
步骤六、用氢氧化钠调ph9.0，保温25-35min后开水降温；
步骤七、降温至65-75℃加入二次尿素，关水保温搅拌15-25min；
步骤八、再次进行开水降温，温度降至50度，测ph8.0，即可放料。
2.根据权利要求1所述的一种板材生产用浸渍胶的生产工艺，其特征在于，步骤一中选用质量百分比浓度为36.5％的甲醛溶液。
3.根据权利要求1所述的一种板材生产用浸渍胶的生产工艺，其特征在于，步骤五反应过程中取样滴入10℃清水，观察反应雾化。
4.根据权利要求1所述的一种板材生产用浸渍胶的生产工艺，其特征在于，步骤五中带反应完成后，涂四杯测粘度6-8秒。
CN202010834062.8A 2020-08-18 2020-08-18 一种板材生产用浸渍胶的生产工艺 Pending CN111978900A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555396A (zh) * 2009-05-12 2009-10-14 张文通 脲醛树脂胶的生产方法
CN101698786A (zh) * 2009-10-29 2010-04-28 曲阜市慧迪化工有限责任公司 一种定向刨花板用胶粘剂及其生产方法
CN101886351A (zh) * 2010-07-06 2010-11-17 山东光华板材有限公司 纸质阻燃装饰板用浸渍胶

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101555396A (zh) * 2009-05-12 2009-10-14 张文通 脲醛树脂胶的生产方法
CN101698786A (zh) * 2009-10-29 2010-04-28 曲阜市慧迪化工有限责任公司 一种定向刨花板用胶粘剂及其生产方法
CN101886351A (zh) * 2010-07-06 2010-11-17 山东光华板材有限公司 纸质阻燃装饰板用浸渍胶

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* Cited by examiner, † Cited by third party
Title
张伟: "《多元共聚树脂胶黏剂化学与工艺学》", 31 December 2018, 文化发展出版社 *
李兰亭等: "《木材加工材料学》", 31 March 1992, 东北林业大学出版社 *

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