CN103483540A - 一种耐磨镜面不黄变pu革用聚氨酯树脂制造方法 - Google Patents

一种耐磨镜面不黄变pu革用聚氨酯树脂制造方法 Download PDF

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CN103483540A
CN103483540A CN201310460533.3A CN201310460533A CN103483540A CN 103483540 A CN103483540 A CN 103483540A CN 201310460533 A CN201310460533 A CN 201310460533A CN 103483540 A CN103483540 A CN 103483540A
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周维求
郭孟姣
何旭明
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Jiaxing Qiyuan Network Information Technology Co.,Ltd.
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Abstract

本发明涉及聚氨酯树脂技术领域，尤其是指一种耐磨镜面不黄变PU革用聚氨酯树脂制造方法，包括⑴准备原料，⑵将二甲基甲酰胺和聚己二酸丁二醇酯投入玻璃反应釜中搅拌；⑶升温，将异佛尔酮二异氰酯和六亚甲基二异氰酸酯投入玻璃反应釜中搅拌；⑷将聚碳酸亚丙酯二醇和乙二醇投入玻璃反应釜中，升温聚合反应得半成品；⑸对半成品进行NCO值检测，⑹加入甲乙酮搅拌，进行稀释，以调节粘度；⑺进行粘度检测。通过本发明方法制备的产品，具有黄变级数高，耐磨性强以及镜面效果好等优点。

Description

一种耐磨镜面不黄变PU革用聚氨酯树脂制造方法
技术领域
本发明涉及聚氨酯树脂技术领域，尤其是指一种耐磨镜面不黄变PU革用聚氨酯树脂制造方法。
背景技术
革用聚氨酯树脂由于范围广，数量大，黄变是较大的技术问题，为有效解决黄变问题，业内做了诸多有意义的探索和研究。目前，制造不黄变PU革用PU树脂的常用方法是采用单一的异佛尔酮异氰酸酯（IPDI）或六亚甲基二异氰酯（HDI）作原料，与聚酯多元醇（一般为己二酸系列的聚酯：如PEA PBA等)聚合反应而生成树脂。该方法所制成的PU合成革缺陷是：1、耐黄变级数不够，只能达到3—3.5级；2、耐磨级数不够，只达到100转/KG左右；3、用于制造PU镜面革时亮度不够（表面折光率不够）易发雾。上述技术问题极大地限制了革用聚氨酯树脂的应用范围和应用效果，尚有较大的改进空间。
发明内容
针对上述现有技术存在的不足，本发明的目的是提供一种耐磨镜面不黄变PU革用聚氨酯树脂制造方法。
为解决上述技术问题，本发明采用的技术方案是：
本发明所述的一种耐磨镜面不黄变PU革用聚氨酯树脂制造方法，包括如下步骤：
⑴准备原料，各原料的质量百分比如下，异佛尔酮二异氰酯5-8%，六亚甲基二异氰酸酯2-5%，聚己二酸丁二醇酯6-10%，聚碳酸亚丙酯二醇8-10%，乙二醇2-2.5%，异佛尔酮二胺0.4-1.5%，二甲基甲酰胺30-50%，甲乙酮26-33%，抗粘剂0.1-0.5%；
⑵将二甲基甲酰胺和聚己二酸丁二醇酯投入玻璃反应釜中搅拌；
⑶升温，将异佛尔酮二异氰酯和六亚甲基二异氰酸酯投入玻璃反应釜中搅拌；
⑷将聚碳酸亚丙酯二醇和乙二醇投入玻璃反应釜中，升温聚合反应得半成品；
⑸对步骤⑶中半成品进行NCO值检测，如NCO值检测合格，对半成品进行降温后，加入异佛尔酮二胺再反应增粘；如NCO值检测不合格，延时继续反应；
⑹加入甲乙酮搅拌，进行稀释，以调节粘度；
⑺进行粘度检测，如粘度合格，加入抗粘剂搅拌后，冷却后包装，得成品；如粘度不合格，再用异佛尔酮二胺或甲乙酮进行粘度调节直至合格。
其中，所述步骤⑶中升温温度为60℃，搅拌时间为30分钟。
其中，所述步骤⑷中升温温度为80℃，反应时间为4小时。
其中，所述步骤⑸中NCO值的合格区间为0.38-0.43%。
其中，所述步骤⑸中降温温度为70℃，反应时间为2小时。
其中，所述步骤⑺中粘度的合格区间为80000-120000CPS/25℃。
其中，所述抗粘剂为有机硅抗粘剂。
本发明的有益效果：本发明方法工艺简单，可操作性强，其得到的PU革用聚氨酯树脂具有黄变级数高，耐磨性强以及镜面效果好等优点。
附图说明
图1为本发明方法步骤方框示意图。
具体实施方式
下面结合实施例对本发明进一步说明。
实施例1
取二甲基甲酰胺（DMF）4Kg和聚己二酸丁二醇酯(PBA)0.8Kg投入玻璃反应釜中搅拌1小时；升温至60℃左右，取异佛尔酮二异氰酯（IPDI）0.6Kg和六亚甲基二异氰酸酯(HDI)0.35Kg投入玻璃反应釜中搅拌30分钟；再取聚碳酸亚丙酯二醇(PPC)0.9Kg和乙二醇(EG)0.22Kg投入玻璃反应釜中，升温至80℃聚合反应4小时，得半成品。对上述半成品进行NCO值检测（NCO值的合格区间为0.38-0.43%），如NCO值检测不合格，延长聚合反应时间，至NCO值合格；如NCO值检测合格，对半成品进行降温至后70℃，加入异佛尔酮二胺(IPDA)0.1Kg再反应2小时增粘；后加入甲乙酮(MEK)3Kg搅拌，进行稀释，以调节粘度；进行粘度（粘度的合格区间为80000-120000CPS/25℃）检测，如粘度不合格，再用适量的异佛尔酮二胺(IPDA)或甲乙酮(MEK)进行粘度调节直至合格；如粘度合格，加入抗粘剂（有机硅抗粘剂）0.03Kg搅拌后，冷却至60℃后包装，得成品。
实施例2
取二甲基甲酰胺（DMF）3Kg和聚己二酸丁二醇酯(PBA)1Kg投入玻璃反应釜中搅拌1小时，升温至60℃左右，取异佛尔酮二异氰酯（IPDI）0.8Kg和六亚甲基二异氰酸酯(HDI)0.5Kg投入玻璃反应釜中，搅拌30分钟；再取聚碳酸亚丙酯二醇(PPC)1Kg和乙二醇(EG)0.2Kg投入玻璃反应釜中，升温至80℃聚合反应4小时，得半成品。对上述半成品进行NCO值检测（NCO值的合格区间为0.38-0.43%），如NCO值检测不合格，延长聚合反应时间，至NCO值合格；如NCO值检测合格，对半成品进行降温至后70℃，加入异佛尔酮二胺(IPDA)0.15Kg再反应2小时增粘；后加入甲乙酮(MEK)3.3Kg搅拌，进行稀释，以调节粘度；进行粘度（粘度的合格区间为80000-120000CPS/25℃）检测，如粘度不合格，再用适量的异佛尔酮二胺(IPDA)或甲乙酮(MEK)进行粘度调节直至合格；如粘度合格，加入抗粘剂（有机硅抗粘剂）0.05Kg搅拌后，冷却至60℃后包装，得成品。
实施例3
取二甲基甲酰胺（DMF）5Kg和聚己二酸丁二醇酯(PBA)0.6Kg投入玻璃反应釜中搅拌1小时，升温至60℃左右，取异佛尔酮二异氰酯（IPDI）0.5Kg和六亚甲基二异氰酸酯(HDI)0.2Kg投入玻璃反应釜中，搅拌30分钟；再取聚碳酸亚丙酯二醇(PPC)0.8Kg和乙二醇(EG)0.25Kg投入玻璃反应釜中，升温至80℃聚合反应4小时，得半成品。对上述半成品进行NCO值检测（NCO值的合格区间为0.38-0.43%），如NCO值检测不合格，延长聚合反应时间，至NCO值合格；如NCO值检测合格，对半成品进行降温至后70℃，加入异佛尔酮二胺(IPDA)0.04Kg再反应2小时增粘；后加入甲乙酮(MEK)2.6Kg搅拌，进行稀释，以调节粘度；进行粘度（粘度的合格区间为80000-120000CPS/25℃）检测，如粘度不合格，再用适量的异佛尔酮二胺(IPDA)或甲乙酮(MEK)进行粘度调节直至合格；如粘度合格，加入抗粘剂（有机硅抗粘剂）0.01Kg搅拌后，冷却至60℃后包装，得成品。
表1，性能对比表
Figure BDA0000391200320000031
从上表可以看出，通过本方法制备的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，从耐黄变，耐磨，耐水解以及镜面效果等方面均优于现有技术。
以上所述仅是本发明的较佳实施方式，故凡依本发明专利申请范围所述的工艺原理所做的等效变化或修改，均包括于本发明专利申请范围内。

Claims (7)

1.一种耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于，包括如下步骤：
⑴准备原料，各原料的质量百分比如下，异佛尔酮二异氰酯5-8%，六亚甲基二异氰酸酯2-5%，聚己二酸丁二醇酯6-10%，聚碳酸亚丙酯二醇8-10%，乙二醇2-2.5%，异佛尔酮二胺0.4-1.5%，二甲基甲酰胺30-50%，甲乙酮26-33%，抗粘剂0.1-0.5%；
⑵将二甲基甲酰胺和聚己二酸丁二醇酯投入玻璃反应釜中搅拌；
⑶升温，将异佛尔酮二异氰酯和六亚甲基二异氰酸酯投入玻璃反应釜中搅拌；
⑷将聚碳酸亚丙酯二醇和乙二醇投入玻璃反应釜中，升温聚合反应得半成品；
⑸对步骤⑶中半成品进行NCO值检测，如NCO值检测合格，对半成品进行降温后，加入异佛尔酮二胺再反应增粘；如NCO值检测不合格，延时继续反应；
⑹加入甲乙酮搅拌，进行稀释，以调节粘度；
⑺进行粘度检测，如粘度合格，加入抗粘剂搅拌后，冷却后包装，得成品；如粘度不合格，再用异佛尔酮二胺或甲乙酮进行粘度调节直至合格。
2.根据权利要求1所述的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于：所述步骤⑶中升温温度为60℃，搅拌时间为30分钟。
3.根据权利要求1所述的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于：所述步骤⑷中升温温度为80℃，反应时间为4小时。
4.根据权利要求1所述的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于：所述步骤⑸中NCO值的合格区间为0.38-0.43%。
5.根据权利要求1所述的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于：所述步骤⑸中降温温度为70℃，反应时间为2小时。
6.根据权利要求1所述的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于：所述步骤⑺中粘度的合格区间为80000-120000CPS/25℃。
7.根据权利要求1所述的耐磨镜面不黄变PU革用聚氨酯树脂制造方法，其特征在于：所述抗粘剂为有机硅抗粘剂。
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CN104530382A (zh) * 2014-12-23 2015-04-22 上海汇得化工有限公司 一种仿超纤合成革用湿法聚氨酯树脂及其制备方法
CN110330628A (zh) * 2019-07-10 2019-10-15 福建元发树脂有限公司 无溶剂单组份聚氨酯镜面树脂
CN113583210A (zh) * 2021-08-12 2021-11-02 清远市番亿聚氨酯有限公司 一种耐黄变聚氨酯树脂及其制备方法

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CN104530382A (zh) * 2014-12-23 2015-04-22 上海汇得化工有限公司 一种仿超纤合成革用湿法聚氨酯树脂及其制备方法
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CN113583210A (zh) * 2021-08-12 2021-11-02 清远市番亿聚氨酯有限公司 一种耐黄变聚氨酯树脂及其制备方法

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