CN105037681A - 浇注型聚氨酯弹性体及其制备方法 - Google Patents

浇注型聚氨酯弹性体及其制备方法 Download PDF

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CN105037681A
CN105037681A CN201510357523.6A CN201510357523A CN105037681A CN 105037681 A CN105037681 A CN 105037681A CN 201510357523 A CN201510357523 A CN 201510357523A CN 105037681 A CN105037681 A CN 105037681A
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polyether glycol
polyurethane elastomer
ddl
type polyurethane
parts
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荆晓东
耿佃勇
杨雷
王帅
董伟
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Zibo Dexin Lianbang Chemical Industry Co Ltd
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring

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Abstract

本发明属于聚氨酯制品技术领域，具体涉及一种浇注型聚氨酯弹性体及其制备方法。浇注型聚氨酯弹性体由如下重量份数的原料制成：聚醚多元醇DDL-2000D？30-50份、聚醚多元醇DMD-3000？20-40份、聚醚多元醇DDL-1000D？10-40份、MDI？20-50份、固化剂2.1-10.7份。本发明耐磨性优异、耐臭氧性极好、硬度大、强度高、弹性好、耐低温，有良好的耐油、耐化学药品和耐环境性能。

Description

浇注型聚氨酯弹性体及其制备方法
技术领域
本发明属于聚氨酯制品技术领域，具体涉及一种浇注型聚氨酯弹性体及其制备方法。
背景技术
聚氨酯浇注型弹性体又称浇注型聚氨酯橡胶，简称CPU，是一种(AB)n型嵌段线性聚合物，A为高分子量(1000-6000)的聚酯或聚醚，B为含2-12直链碳原子的二醇，AB链段间化学结构是用二异氰酸酯连接。CPU具有优异的耐磨性能，优良的撕裂强度，较高的弹性及方便的生产方法。
发明内容
本发明的目的是提供一种浇注型聚氨酯弹性体，耐磨性优异、耐臭氧性极好、硬度大、强度高、弹性好、耐低温，有良好的耐油、耐化学药品和耐环境性能；本发明同时提供了浇注型聚氨酯弹性体的制备方法，科学合理、简单易行。
本发明所述的浇注型聚氨酯弹性体，由如下重量份数的原料制成：
所述的聚醚多元醇DDL-2000D为2官能度，分子量2000的聚醚多元醇；该聚醚由淄博德信联邦化学工业有限公司生产，用这类多元醇做的制品弹性好、韧性好等。
所述的聚醚多元醇DMD-3000为3官能度，分子量3000的聚醚多元醇；该聚醚由淄博德信联邦化学工业有限公司生产，用这类多元醇做的制品抗撕裂。
所述的聚醚多元醇DDL-1000D为2官能度，分子量1000的聚醚多元醇；该聚醚由淄博德信联邦化学工业有限公司生产，用这类多元醇做的制品硬度大、耐磨等。
所述的MDI反应速度快、机械性能好、耐磨性能优异。
所述的固化剂为1,4-丁二醇。
本发明所述的浇注型聚氨酯弹性体的制备方法，步骤如下：
(1)聚醚多元醇DDL-2000D、聚醚多元醇DMD-3000和聚醚多元醇DDL-1000D在100-120℃抽真空脱水1.5-2.0h，降温至45-55℃后加入TDI，70-80℃合成NCO含量为2-10％的预聚体；
(2)然后加固化剂进行混合反应，混合反应温度为75-85℃，混合均匀后倒入模具中硫化30min后脱模，在100-110℃下硫化8-12h后得到产品。
本发明与现有技术相比，具有如下有益效果：
(1)本发明耐磨性优异、耐臭氧性极好、硬度大、强度高、弹性好、耐低温，有良好的耐油、耐化学药品和耐环境性能。
(2)本发明的制备方法简单易实施。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
原料组成如下：
制备方法如下：
(1)聚醚多元醇DDL-2000D、聚醚多元醇DMD-3000和聚醚多元醇DDL-1000D在120℃抽真空脱水2.0h，降温至55℃后加入TDI，80℃合成NCO含量为10％的预聚体；
(2)然后加1,4-丁二醇进行混合反应，混合反应温度为85℃，混合均匀后倒入模具中硫化30min后脱模，在110℃下硫化12h后得到产品。
产品指标见表1。
表1实施例1产品指标
实施例2
原料组成如下：
聚醚多元醇DDL-2000D30kg
制备方法如下：
(1)聚醚多元醇DDL-2000D、聚醚多元醇DMD-3000和聚醚多元醇DDL-1000D在100℃抽真空脱水1.5h，降温至45℃后加入TDI，70℃合成NCO含量为2％的预聚体；
(2)然后加1,4-丁二醇进行混合反应，混合反应温度为75℃，混合均匀后倒入模具中硫化30min后脱模，在100℃下硫化8h后得到产品。
产品指标见表2。
表2实施例2产品指标
实施例3
原料组成如下：
制备方法如下：
(1)聚醚多元醇DDL-2000D、聚醚多元醇DMD-3000和聚醚多元醇DDL-1000D在110℃抽真空脱水1.7h，降温至50℃后加入TDI，72℃合成NCO含量为5％的预聚体；
(2)然后加1,4-丁二醇进行混合反应，混合反应温度为78℃，混合均匀后倒入模具中硫化30min后脱模，在102℃下硫化9h后得到产品。
产品指标见表3。
表3实施例3产品指标

Claims (6)

1.一种浇注型聚氨酯弹性体，其特征在于由如下重量份数的原料制成：
2.根据权利要求1所述的浇注型聚氨酯弹性体，其特征在于所述的聚醚多元醇DDL-2000D为2官能度，分子量2000的聚醚多元醇。
3.根据权利要求1所述的浇注型聚氨酯弹性体，其特征在于所述的聚醚多元醇DMD-3000为3官能度，分子量3000的聚醚多元醇。
4.根据权利要求1所述的浇注型聚氨酯弹性体，其特征在于所述的聚醚多元醇DDL-1000D为2官能度，分子量1000的聚醚多元醇。
5.根据权利要求1所述的浇注型聚氨酯弹性体，其特征在于所述的固化剂为1,4-丁二醇。
6.一种权利要求1-5任一所述的浇注型聚氨酯弹性体的制备方法，其特征在于步骤如下：
(1)聚醚多元醇DDL-2000D、聚醚多元醇DMD-3000和聚醚多元醇DDL-1000D在100-120℃抽真空脱水1.5-2.0h，降温至45-55℃后加入TDI，70-80℃合成NCO含量为2-10％的预聚体；
(2)然后加固化剂进行混合反应，混合反应温度为75-85℃，混合均匀后倒入模具中硫化30min后脱模，在100-110℃下硫化8-12h后得到产品。
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Cited By (8)

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CN105237732A (zh) * 2015-11-13 2016-01-13 淄博正大聚氨酯有限公司 聚氨酯机器人及其制备方法
CN105254841A (zh) * 2015-11-13 2016-01-20 淄博正大聚氨酯有限公司 聚氨酯地面砖及其制备方法
CN105949430A (zh) * 2016-07-21 2016-09-21 淄博德信联邦化学工业有限公司 具有抗菌功能的聚氨酯自动扶梯扶手面胶层的制备方法
CN106750101A (zh) * 2017-02-24 2017-05-31 耿佃勇 聚氨酯缓冲垫及其制备方法
CN106750104A (zh) * 2017-02-24 2017-05-31 耿佃勇 聚氨酯棒球及其制备方法
CN106883374A (zh) * 2017-02-24 2017-06-23 耿佃勇 聚氨酯玻璃及其制备方法
CN107254161A (zh) * 2017-06-22 2017-10-17 广东元星工业新材料有限公司 耐低温聚氨酯弹性体及其制备方法
CN108822711A (zh) * 2018-06-26 2018-11-16 深圳市天之科技开发有限公司 一种水性墙面漆及其制备方法

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105237732A (zh) * 2015-11-13 2016-01-13 淄博正大聚氨酯有限公司 聚氨酯机器人及其制备方法
CN105254841A (zh) * 2015-11-13 2016-01-20 淄博正大聚氨酯有限公司 聚氨酯地面砖及其制备方法
CN105949430A (zh) * 2016-07-21 2016-09-21 淄博德信联邦化学工业有限公司 具有抗菌功能的聚氨酯自动扶梯扶手面胶层的制备方法
CN106750101A (zh) * 2017-02-24 2017-05-31 耿佃勇 聚氨酯缓冲垫及其制备方法
CN106750104A (zh) * 2017-02-24 2017-05-31 耿佃勇 聚氨酯棒球及其制备方法
CN106883374A (zh) * 2017-02-24 2017-06-23 耿佃勇 聚氨酯玻璃及其制备方法
CN107254161A (zh) * 2017-06-22 2017-10-17 广东元星工业新材料有限公司 耐低温聚氨酯弹性体及其制备方法
CN108822711A (zh) * 2018-06-26 2018-11-16 深圳市天之科技开发有限公司 一种水性墙面漆及其制备方法

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Application publication date: 20151111

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