CN107118325A - 一种7110甲聚氨酯固化剂 - Google Patents

一种7110甲聚氨酯固化剂 Download PDF

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CN107118325A
CN107118325A CN201710330132.4A CN201710330132A CN107118325A CN 107118325 A CN107118325 A CN 107118325A CN 201710330132 A CN201710330132 A CN 201710330132A CN 107118325 A CN107118325 A CN 107118325A
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郭松华
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Foshan Gaoming Chemical Co Ltd
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Abstract

本发明涉及一种7110甲聚氨酯固化剂,按质量份数计,具体由如下组份制得:三羟甲基丙烷35‑45份、缩二脲多异氰酸酯15‑25份、分散剂5‑9份、乙酸丁酯8‑12份、环己酮4‑6份、二甲苯2‑7份、催化剂0.01‑0.07份、TDI5‑14份、HDI15‑25份、IPDI2‑4份。经过实验,本发明提供的一种7110甲聚氨酯固化剂,相比于现有的7110甲聚氨酯固化剂,粘度更低,大大减少了涂装时设备内部易被高粘度产物堵塞、刮板等活动装置易被粘连等问题的发生,保证了产品的使用效果,市场前景广阔。

Description

一种7110甲聚氨酯固化剂
技术领域
本发明属于高分子化合物技术领域,具体涉及一种7110甲聚氨酯固化剂。
背景技术
甲聚氨酯固化剂是一种附着力强的,透明液体,使用甲聚氨酯固化剂涂装过的材料,具有高硬度、高光泽、耐磨性好、耐化学品性好、贮存稳定的特性,因此常作为摩托车部件汽车表面涂装和其他工业涂装木器涂装等双组份涂料。
现有技术中,我国聚氨酯固化剂品种单一、固含量低、残留的游离异氰酸酯单体含量高、粘度大,涂装时容易造成设备内部易被高粘度产物堵塞,刮板等活动装置易被粘连,造成分离效果差,装置运转不稳定,极大影响产品的应用。
发明内容
为了解决上述问题,本发明提供了一种7110甲聚氨酯固化剂。
本发明通过以下技术方案实现:
一种7110甲聚氨酯固化剂,按质量份数计,具体由如下组份制得:三羟甲基丙烷35-45份、缩二脲多异氰酸酯15-25份、分散剂5-9份、乙酸丁酯8-12份、环己酮4-6份、二甲苯2-7份、催化剂0.01-0.07份、TDI5-14份、HDI15-25份、IPDI2-4份;其制备方法,具体为以下步骤:
(1)物料预处理
将所述三羟甲基丙烷、缩二脲多异氰酸酯在50-65℃下真空脱水30-35分钟,真空度为0.06-0.09Mpa;
(2)高混机混合
将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至95-105℃保温,混合处理8-12分钟,得物料A;
(3)搅拌釜混合溶解
将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解3-5分钟,得物料B,期间保持搅拌釜温度在85-95℃;
(4)反应釜A充分溶解
将所述物料B置于反应釜A中,60-65℃保温20-25分钟,使所述物料B中各组分充分混合溶解,得物料C;
(5)混合共聚
将所述TDI、HDI、IPDI置于反应釜B中,80-90℃保温处理10-15分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低70-75℃,加入所述催化剂,保温6-8分钟;
(6)保温回流
将所述反应釜温度再次降低至60-65℃,保温回流140-200分钟;
(7)出料得成品。
进一步的,所述分散剂,由硬脂酸、硬脂酸钙按质量比15-25:3-7混合后制得。
进一步的,所述催化剂,由有机铋催化剂、辛酸亚锡按质量比5-7:2-4混合后制得。
与现有技术相比,本发明的有益效果是:
经过实验,本发明提供的一种7110甲聚氨酯固化剂,相比于现有的7110甲聚氨酯固化剂,粘度更低,大大减少了涂装时设备内部易被高粘度产物堵塞、刮板等活动装置易被粘连等问题的发生,保证了产品的使用效果,市场前景广阔。
具体实施方式
以下对本发明的优选实施例进行说明,应当理解,此处所描述的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例1
一种7110甲聚氨酯固化剂,按质量份数计,具体由如下组份制得:三羟甲基丙烷35份、缩二脲多异氰酸酯15份、分散剂5份、乙酸丁酯8份、环己酮4份、二甲苯2份、催化剂0.01份、TDI5份、HDI15份、IPDI2份;其制备方法,具体为以下步骤:
(1)物料预处理
将所述三羟甲基丙烷、缩二脲多异氰酸酯在50℃下真空脱水30分钟,真空度为0.06Mpa;
(2)高混机混合
将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至95℃保温,混合处理8分钟,得物料A;
(3)搅拌釜混合溶解
将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解3分钟,得物料B,期间保持搅拌釜温度在85℃;
(4)反应釜A充分溶解
将所述物料B置于反应釜A中,60℃保温20分钟,使所述物料B中各组分充分混合溶解,得物料C;
(5)混合共聚
将所述TDI、HDI、IPDI置于反应釜B中,80℃保温处理10分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低70℃,加入所述催化剂,保温6分钟;
(6)保温回流
将所述反应釜温度再次降低至60℃,保温回流140分钟;
(7)出料得成品。
进一步的,所述分散剂,由硬脂酸、硬脂酸钙按质量比15:3混合后制得。
进一步的,所述催化剂,由有机铋催化剂、辛酸亚锡按质量比5:2混合后制得。
实施例2
一种7110甲聚氨酯固化剂,按质量份数计,具体由如下组份制得:三羟甲基丙烷45份、缩二脲多异氰酸酯25份、分散剂9份、乙酸丁酯12份、环己酮6份、二甲苯7份、催化剂0.07份、TDI14份、HDI25份、IPDI4份;其制备方法,具体为以下步骤:
(1)物料预处理
将所述三羟甲基丙烷、缩二脲多异氰酸酯在65℃下真空脱水35分钟,真空度为0.09Mpa;
(2)高混机混合
将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至105℃保温,混合处理12分钟,得物料A;
(3)搅拌釜混合溶解
将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解5分钟,得物料B,期间保持搅拌釜温度在95℃;
(4)反应釜A充分溶解
将所述物料B置于反应釜A中,65℃保温25分钟,使所述物料B中各组分充分混合溶解,得物料C;
(5)混合共聚
将所述TDI、HDI、IPDI置于反应釜B中,90℃保温处理15分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低75℃,加入所述催化剂,保温8分钟;
(6)保温回流
将所述反应釜温度再次降低至65℃,保温回流200分钟;
(7)出料得成品。
进一步的,所述分散剂,由硬脂酸、硬脂酸钙按质量比25:7混合后制得。
进一步的,所述催化剂,由有机铋催化剂、辛酸亚锡按质量比7:4混合后制得。
实施例3
一种7110甲聚氨酯固化剂,按质量份数计,具体由如下组份制得:三羟甲基丙烷40份、缩二脲多异氰酸酯20份、分散剂6份、乙酸丁酯10份、环己酮5份、二甲苯4份、催化剂0.05份、TDI11份、HDI19份、IPDI3份;其制备方法,具体为以下步骤:
(1)物料预处理
将所述三羟甲基丙烷、缩二脲多异氰酸酯在58℃下真空脱水32分钟,真空度为0.08Mpa;
(2)高混机混合
将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至100℃保温,混合处理10分钟,得物料A;
(3)搅拌釜混合溶解
将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解4分钟,得物料B,期间保持搅拌釜温度在90℃;
(4)反应釜A充分溶解
将所述物料B置于反应釜A中,63℃保温22分钟,使所述物料B中各组分充分混合溶解,得物料C;
(5)混合共聚
将所述TDI、HDI、IPDI置于反应釜B中,85℃保温处理13分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低72℃,加入所述催化剂,保温7分钟;
(6)保温回流
将所述反应釜温度再次降低至63℃,保温回流180分钟;
(7)出料得成品。
进一步的,所述分散剂,由硬脂酸、硬脂酸钙按质量比20:5混合后制得。
进一步的,所述催化剂,由有机铋催化剂、辛酸亚锡按质量比6:3混合后制得。
实施例4
一种7110甲聚氨酯固化剂,按质量份数计,具体由如下组份制得:三羟甲基丙烷37份、缩二脲多异氰酸酯18份、分散剂6份、乙酸丁酯9份、环己酮5份、二甲苯3份、催化剂0.02份、TDI6份、HDI17份、IPDI2份;其制备方法,具体为以下步骤:
(1)物料预处理
将所述三羟甲基丙烷、缩二脲多异氰酸酯在55℃下真空脱水32分钟,真空度为0.07Mpa;
(2)高混机混合
将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至100℃保温,混合处理9分钟,得物料A;
(3)搅拌釜混合溶解
将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解4分钟,得物料B,期间保持搅拌釜温度在90℃;
(4)反应釜A充分溶解
将所述物料B置于反应釜A中,62℃保温23分钟,使所述物料B中各组分充分混合溶解,得物料C;
(5)混合共聚
将所述TDI、HDI、IPDI置于反应釜B中,83℃保温处理12分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低71℃,加入所述催化剂,保温7分钟;
(6)保温回流
将所述反应釜温度再次降低至62℃,保温回流150分钟;
(7)出料得成品。
进一步的,所述分散剂,由硬脂酸、硬脂酸钙按质量比16:3混合后制得。
进一步的,所述催化剂,由有机铋催化剂、辛酸亚锡按质量比6:2混合后制得。
对照组
现有的7110甲聚氨酯固化剂。
根据GB/T266-88分别测定上述5中7110甲聚氨酯固化剂在环境温度为25℃下的粘度,结果如表1:
恩氏粘度(s)
实施例1 11.8
实施例2 10.6
实施例3 10.9
实施例4 11.1
对照组 16.5
由表1可知,本发明提供的一种7110甲聚氨酯固化剂,相比于现有的7110甲聚氨酯固化剂,粘度更低,大大减少了涂装时设备内部易被高粘度产物堵塞、刮板等活动装置易被粘连等问题的发生,保证了产品的使用效果,市场前景广阔。
最后应说明的是:以上仅为本发明的优选实施例而已,并不用于限制本发明,尽管参照实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换,但是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 (10)

1.一种7110甲聚氨酯固化剂,其特征在于,按质量份数计,具体由如下组份制得:三羟甲基丙烷35-45份、缩二脲多异氰酸酯15-25份、分散剂5-9份、乙酸丁酯8-12份、环己酮4-6份、二甲苯2-7份、催化剂0.01-0.07份、TDI5-14份、HDI15-25份、IPDI2-4份;其制备方法,具体为以下步骤:
(1)物料预处理
将所述三羟甲基丙烷、缩二脲多异氰酸酯在50-65℃下真空脱水30-35分钟,真空度为0.06-0.09Mpa;
(2)高混机混合
将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至95-105℃保温,混合处理8-12分钟,得物料A;
(3)搅拌釜混合溶解
将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解3-5分钟,得物料B,期间保持搅拌釜温度在85-95℃;
(4)反应釜A充分溶解
将所述物料B置于反应釜A中,60-65℃保温20-25分钟,使所述物料B中各组分充分混合溶解,得物料C;
(5)混合共聚
将所述TDI、HDI、IPDI置于反应釜B中,80-90℃保温处理10-15分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低70-75℃,加入所述催化剂,保温6-8分钟;
(6)保温回流
将所述反应釜温度再次降低至60-65℃,保温回流140-200分钟;
(7)出料得成品。
2.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,按质量份数计,具体由如下组份制得:三羟甲基丙烷40份、缩二脲多异氰酸酯20份、分散剂6份、乙酸丁酯10份、环己酮5份、二甲苯4份、催化剂0.05份、TDI11份、HDI19份、IPDI3份。
3.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于:所述分散剂,由硬脂酸、硬脂酸钙按质量比15-25:3-7混合后制得。
4.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于:所述分散剂,由硬脂酸、硬脂酸钙按质量比20:5混合后制得。
所述催化剂,由有机铋催化剂、辛酸亚锡按质量比5-7:2-4混合后制得;
所述催化剂,由有机铋催化剂、辛酸亚锡按质量比6:3混合后制得。
5.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,步骤(1)所述物料预处理,具体方法为:将所述三羟甲基丙烷、缩二脲多异氰酸酯在58℃下真空脱水32分钟,真空度为0.08Mpa。
6.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,步骤(2)所述高混机混合,具体方法为:将处理好的所述三羟甲基丙烷、缩二脲多异氰酸酯、分散剂加入高混机中,加热至100℃保温,混合处理10分钟,得物料A。
7.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,步骤(3)所述搅拌釜混合溶解,具体方法为:将所述物料A、乙酸丁酯、环己酮、二甲苯于搅拌釜中高速搅拌,混合溶解4分钟,得物料B,期间保持搅拌釜温度在90℃。
8.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,步骤(4)所述反应釜A充分溶解,具体方法为:将所述物料B置于反应釜A中,63℃保温22分钟,使所述物料B中各组分充分混合溶解,得物料C。
9.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,步骤(5)所述混合共聚,具体方法为:将所述TDI、HDI、IPDI置于反应釜B中,85℃保温处理13分钟,然后将所述物料C缓慢滴加入所述反应釜B中,将温度降低72℃,加入所述催化剂,保温7分钟。
10.根据权利要求1所述的一种7110甲聚氨酯固化剂,其特征在于,步骤(6)所述保温回流,具体方法为:将所述反应釜温度再次降低至63℃,保温回流180分钟。
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