CN85100982A - 一种防水粘合剂的制备方法 - Google Patents
一种防水粘合剂的制备方法 Download PDFInfo
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- CN85100982A CN85100982A CN 85100982 CN85100982A CN85100982A CN 85100982 A CN85100982 A CN 85100982A CN 85100982 CN85100982 CN 85100982 CN 85100982 A CN85100982 A CN 85100982A CN 85100982 A CN85100982 A CN 85100982A
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 2
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- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
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- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明是防水粘合剂的制备方法。该方法直接采用高淀粉植物为原料，以无机酸为催化剂，与醛类树脂的单体，在一个反应器中一次完成水解和共聚反应。该方法与一般防水粘合剂制备方法比较，工序少，设备简单，而且提高了粘合剂的粘结力。该粘合剂既适于热裱工艺，又适于冷裱工艺，还可民用。
Description
本发明是一种粘合剂的制备方法。
一般的淀粉防水粘合剂的制备方法，是先从含有高淀粉植物中提取出淀粉，再把淀粉水解为糊精，然后选用合适的单体与糊精共聚。例如，US3583933中所说的方法，就是先把玉米经过提取淀粉，水解成糊精，又干燥为粉状等多道工序，然后再与单体共聚，制成粘合剂。整个制备过程需经过复杂的工序，用不同设备，生产周期长，成本高，尤其是把淀粉制成糊精时必须完全水解成为小分子量的透明体，影响粘结力。
本发明针对上述方法的缺点，直接采用高淀粉的植物为原料，以无机酸为催化剂，选择酚醛或尿醛或酮醛树脂的单体为共聚单体，在一个反应器中一次完成水解和共聚等工序。这种方法不但大大减少工序，而且在水解反应时不必完全水解，相反，只要形成一种大分子量的物质参加聚合，增强了粘结力。
本发明是直接采用含高淀粉的植物如玉米、小麦、马铃薯、大米与水及无机酸在反应器中混合，升温60-100℃，搅动8-60分钟，然后加入醛类共聚单体如：间苯二酚，间甲酚，3.5二甲酚，多聚甲醛，乙醛，丙醛，丁醛，尿素，乙撑尿，三聚氰胺，丙酮，甲乙酮在50℃-90℃温度下搅动0.5-3小时。
实施例
原料准备：把玉米去皮磨成粉，筛出70目以上的组分即可备用。在一个装有搅拌器、回流冷凝器和温度计的三口瓶中装入玉米面40克，水120毫升，36%盐酸1毫升，搅拌，升温到70℃后反应20分钟，用0.2N NaOH溶液调节pH到7，再加入二羟基甲尿水溶液20克，在90℃下反应1.5小时，然后将1克硼砂溶解在40毫升水中后倒入三口瓶内，用0.2N NaOH溶液调节pH到9，在70℃中再反应0.5小时即可出料。用本方法得到的粘合剂，在使用前应加变定剂进行变定如1～2%的NH4Cl，变定可以在室温下，也可加温进行。未变定的粘合剂可用一般民用浆糊。
本发明直接采用含高淀粉的植物为起始原料，不需经制成糊精，所以不仅使用的设备简单，操作容易，工序少，生产周期短，而且还增强了粘合剂的粘结力。用本粘合剂粘结瓦楞纸与同类粘合剂比较如下。
用本方法制成粘合剂粘瓦楞纸 日本瓦楞纸
耐破度Kg/Cm215.2 17.6
戳穿强度Kg/Cm233.6 38
边缘压碎Kg 60.5 23
接缝强度Kg 面纸横向断，拉不开缝 9.6
本发明所得到的粘合剂使用范围广，既可用于热裱工艺，又可用于冷裱工艺，还可民用。
Claims (4)
1、一种防水粘合剂的制备方法，采用含高淀粉的植物为原料，用无机酸为催化剂进行水解反应，然后与尿醛、酚醛或酮醛树脂的单体进行共聚，其特征在于水解和共聚反应在一个反应器中一次完成。
2、如权利要求1所述的制备方法，其特征在于将含高淀粉的植物、水及无机酸在反应器中混合，在60℃-100℃温度下水解8-60分钟。
3、如权利要求1所述的方法，其特征在于水解后加入醛类树脂的单体，在50℃-90℃温度下反应0.5-3小时。
4、如权利要求2，3所述的方法，其特征在于在水解，共聚反应时不断搅动。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100982 CN85100982A (zh) | 1985-04-01 | 1985-04-01 | 一种防水粘合剂的制备方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100982 CN85100982A (zh) | 1985-04-01 | 1985-04-01 | 一种防水粘合剂的制备方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN85100982A true CN85100982A (zh) | 1986-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85100982 Pending CN85100982A (zh) | 1985-04-01 | 1985-04-01 | 一种防水粘合剂的制备方法 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85100982A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0323691A1 (en) * | 1988-01-07 | 1989-07-12 | Borden, Inc. | Aldehyde starch saturant laminating adhesives |
-
1985
- 1985-04-01 CN CN 85100982 patent/CN85100982A/zh active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0323691A1 (en) * | 1988-01-07 | 1989-07-12 | Borden, Inc. | Aldehyde starch saturant laminating adhesives |
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