CN106519165A - 一种聚氨酯全水自结皮泡沫组合物 - Google Patents

一种聚氨酯全水自结皮泡沫组合物 Download PDF

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CN106519165A
CN106519165A CN201610943263.5A CN201610943263A CN106519165A CN 106519165 A CN106519165 A CN 106519165A CN 201610943263 A CN201610943263 A CN 201610943263A CN 106519165 A CN106519165 A CN 106519165A
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张剑
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Abstract

一种聚氨酯全水自结皮泡沫组合物，应用于跑步机扶手、高速路防护栏、治疗设备的靠背等。醚和异氰酸酯组成，其重量份配比为：100份组合聚醚、30～45份异氰酸酯，所述组合聚醚主要含有低不饱和度羟值为33‑37mgKOH/g的聚氧化丙烯二醇、羟值为21～27mgKOH/g的环氧丙烷环氧乙烷共聚醚、包括至少2个能与异氰酸酯起反应的氢原子且分子量为60～200的交联剂、水、催化剂、表面活性剂、光稳定剂、纳米碳化硅。本发明的全水聚氨酯自结皮泡沫组合物具有优异的抗压缩和抗撞击性，耐磨、耐油、硬度范围宽、高强力高伸长率、减震。能通过标准ISO10993‑5‑2009体外细胞毒性测试。

Description

一种聚氨酯全水自结皮泡沫组合物
技术领域
本发明涉及聚氨酯泡沫技术领域，具体涉及一种聚氨酯全水自结皮泡沫组合物，主要用于高速公路防护栏及健康器材。
背景技术
据蒙特利尔议定书第19次缔约方大会达成的协议，发展中国家2013年要冻结HCFCs的生产和消费量在2009年和2010年的平均水平上，到2015年削减10％，2020年削减35％、2025年削减 67.5％，2030年除特殊用途外全部淘汰HCFCs系列产品。目前中国生产和使用的受控HCFCs包括：HCFC-22、HCFC-123、HCFC-124、HCFC-141b和HCFC-142b，其中市面上90%以上的聚氨酯自结皮发泡产品都使用HCFC-141b作为发泡剂。虽然在市面上有采用水为聚氨酯自结皮发泡产品的发泡剂，但其与HCFC-141b相比存在着难以形成皮层（皮层较薄），耐磨性差，易收缩等问题。
发明内容
为克服上有技术的缺陷，本发明提供一种具有优异的抗压缩和抗撞击性，耐磨、耐油、硬度范围宽、高强度高伸长率、减震。能通过标准ISO10993-5-2009体外细胞毒性测试的全水聚氨酯全水自结皮泡沫组合物。
为实现上述目的，本发明采用如下之技术方案：
一种聚氨酯全水自结皮泡沫组合物，所述聚氨酯全水自结皮泡沫组合物由A组分和B组分组成，其重量份配比如下：100份A组分，30～45份B组分。具体如下：
所述A组分主要成分以及它们之间的重量份配比如下：具有伯羟基的低不饱和度羟值为33-37mgKOH/g的聚氧化丙烯二醇20～80份；以丙三醇为起始剂的羟值为21～27mgKOH/g的环氧丙烷环氧乙烷共聚醚10～50份；包括至少2个能与异氰酸酯起反应的氢原子且分子量为60～200的交联剂1～15份；色浆1～3份，用于对制品进行染色；水0.1～1份，作为整个产品的发泡剂；催化剂1～5份，该催化剂为特种反应型催化剂，具体为带有羟基的反应型胺类催化剂LE-310、NE-1070中的一种或两种并用；
表面活性剂0.1～0.5份，该表面活性剂为聚氧化丙烯一氧化乙烯共聚醚物型开孔剂与聚氧化烯烃一聚硅氧烷共聚物型开孔剂的混合物；
纳米碳化硅0.5—2份，来提高其耐磨性；光稳定剂0.5—2份，为一种受阻胺类光稳定剂，用于抑制产品光氧化还原或光老化过程，延长产品的使用寿命，防止热氧降解。
所述B组分为异氰酸酯多元醇与二苯基甲烷-4,4'-二异氰酸酯的反应产物，是一种改性MDI异氰酸酯。
进一步来说，所述A组分和B组分两者之间的重量份配比为：100份A组分，35份B组分。
进一步来说，所述包括至少2个能与异氰酸酯起反应的氢原子且分子量为60～200的多元醇为乙二醇、1,4丁二醇、二甘醇、丙二醇、丙三醇或季戊四醇中的一种或几种。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：
本发明提供的一种聚氨酯全水自结皮泡沫组合物，将A组分在常温下搅拌形成组合聚醚，然后将组合聚醚与异氰酸酯的衍生物进行混合，形成自结皮泡沫组合物；该组合物不但具有传统自结皮的物理特性，其皮层厚度、耐磨性达到高速公路防护栏使用要求，还能满足ISO10993-5-2009体外细胞毒性测试，满足在健身器材及医疗器材上应用。
具体实施方式
下面实施例对本发明作进一步描述：
实施例1
产品配方如下:100份A组分：30份B组分。
首先，称取具有伯羟基的低不饱和度羟值为33-37mgKOH/g的聚氧化丙烯二醇PPG50份，以丙三醇为起始剂的羟值为21-27 mgKOH/g的环氧丙烷环氧乙烷共聚醚50份，交联剂乙二醇3份；水0.2份，催化剂LE-310与催化剂NE-1070的混合物1.5份，表面活性剂0.2份，色浆2份，光稳定剂1.5份，纳米碳化硅0.5份。由此，上述原料混合均匀形成A组分，并采用改性MDI异氰酸酯作为B组分。待A组分、B组分混合后，采用低压发泡机，将料温控制在25—30℃，模具温度控制在35—45℃，浇注即成。
实施例2
产品配方如下:100份A组分：35份B组分。
首先，称取具有伯羟基的低不饱和度羟值为33-37mgKOH/g的聚氧化丙烯二醇PPG60份，以丙三醇为起始剂的羟值为21-27 mgKOH/g的环氧丙烷环氧乙烷共聚醚40份，交联剂乙二醇5份；水0.2份，催化剂LE-310与催化剂NE-1070的混合物 1.5份，表面活性剂0.2份，色浆2份，光稳定剂1.5份，纳米碳化硅0.5份。由此，上述原料混合均匀形成A组分，并采用改性MDI异氰酸酯最为B组分。待A组分、B组分混合后，采用低压发泡机，将料温控制在25—30℃，模具温度控制在35—45℃，浇注即成。
实施例3
产品配方如下:100份A组分：45份B组分。
首先，称取具有伯羟基的低不饱和度羟值为33-37mgKOH/g的聚氧化丙烯二醇PPG70份，以丙三醇为起始剂的羟值为21-27 mgKOH/g的环氧丙烷环氧乙烷共聚醚30份，交联剂乙二醇8份；水0.2份，催化剂LE-310与催化剂NE-1070的混合物 1.5份，表面活性剂0.2份，色浆2份，光稳定剂1.5份，纳米碳化硅0.5份。由此，上述原料混合均匀形成A组分，并采用改性MDI异氰酸酯最为B组分。待A组分、B组分混合后，采用低压发泡机，将料温控制在25—30℃，模具温度控制在35—45℃，浇注即成。
上述三组实施例的产品测试结果如下：
实施例1 实施例2 实施例3
密度（kg/m3） 297 311 319
邵氏C硬度 45 48 62
拉伸强度（Mpa） 0.87 1.01 1.47
磨耗量（mm3/1.61km） 25 34 58
实施实施例2为最佳方案。
以上仅就本发明的最佳实施例作了说明，但不能理解为是对权利要求的限制。本发明不仅限于以上实施例，凡在本发明独立权利要求的保护范围内所作的各种变化均在本发明的保护范围内。

Claims (5)

1.一种聚氨酯全水自结皮泡沫组合物，其特征在于：所述聚氨酯全水自结皮泡沫组合物由A组分和B组分组成，其重量份配比如下：
100份A组分，30～45份B组分；
所述A组分主要成分以及它们之间的重量份配比如下：
具有伯羟基的低不饱和度羟值为33-37mgKOH/g的聚氧化丙烯二醇20～80份，
以丙三醇为起始剂的羟值为21～27mgKOH/g的环氧丙烷环氧乙烷共聚醚10～50份，
包括至少2个能与异氰酸酯起反应的氢原子且分子量为60～200的交联剂1～15份，
水0.1～1份，
催化剂1～5份，
表面活性剂0.1～0.5份，
色浆1～3份，
纳米碳化硅 0.5～2份，
光稳定剂0.5—2份；
所述B组分为异氰酸酯多元醇与二苯基甲烷-4,4'-二异氰酸酯的反应产物。
2.根据权利要求1所述的一种聚氨酯全水自结皮泡沫组合物，其特征在于，所述A组分和B组分两者之间的重量份配比为：100份A组分，35份B组分。
3.根据权利要求2所述的一种聚氨酯全水自结皮泡沫组合物，其特征在于：所述包括至少2个能与异氰酸酯起反应的氢原子且分子量为60～200的多元醇为乙二醇、1,4丁二醇、二甘醇、丙二醇、丙三醇或季戊四醇中的一种或几种。
4.根据权利要求1所述的一种聚氨酯全水自结皮泡沫组合物，其特征在于：光稳定剂是一种受阻胺类光稳定剂。
5.根据权利要求1所述的一种聚氨酯全水自结皮泡沫组合物，其特征在于：所述催化剂为带有羟基的反应型胺类催化剂LE-310、NE-1070中的一种或两种并用。
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CN107163216A (zh) * 2017-06-27 2017-09-15 重庆市宏立摩托车制造有限公司 一种耐高温高回弹聚氨酯泡沫组合物及其制备方法
CN107987253A (zh) * 2017-12-14 2018-05-04 山东诺威体育产业有限公司 道路防撞护栏用聚氨酯微孔弹性体组合料及制备方法
CN112048050A (zh) * 2019-06-06 2020-12-08 陈凤福 发泡剂组合物、其制备方法及应用

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CN107163216A (zh) * 2017-06-27 2017-09-15 重庆市宏立摩托车制造有限公司 一种耐高温高回弹聚氨酯泡沫组合物及其制备方法
CN107987253A (zh) * 2017-12-14 2018-05-04 山东诺威体育产业有限公司 道路防撞护栏用聚氨酯微孔弹性体组合料及制备方法
CN112048050A (zh) * 2019-06-06 2020-12-08 陈凤福 发泡剂组合物、其制备方法及应用
CN112048050B (zh) * 2019-06-06 2022-06-24 陈凤福 发泡剂组合物、其制备方法及应用

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