CN104327242A - 油砂输送用耐低温耐油聚氨酯复合材料的制备方法及应用 - Google Patents

油砂输送用耐低温耐油聚氨酯复合材料的制备方法及应用 Download PDF

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CN104327242A
CN104327242A CN201410533467.2A CN201410533467A CN104327242A CN 104327242 A CN104327242 A CN 104327242A CN 201410533467 A CN201410533467 A CN 201410533467A CN 104327242 A CN104327242 A CN 104327242A
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张凯杰
张刚
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JIANGSU JESCI NEW MATERIAL TECHNOLOGY Co Ltd
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Abstract

本发明公开了一种油砂输送用耐低温耐油聚氨酯复合材料的制备方法，所述聚氨酯钢塑复合材料按质量分数组成包括：聚四氢呋喃二醇48%~57%、聚氧化丙烯二醇10%~16%、甲苯二异氰酸酯10%~12%、1,5—萘二异氰酸酯6%~8%、二邻氯二苯胺甲烷9%~11%、二硫化钼5%~6%，在一定的温度和搅拌速度下混合得到橡胶，将橡胶通过离心浇铸就得到钢塑复合管。本发明具有高耐磨性、回弹性好、耐热性好、抗张强度高、耐水解性突出、与金属粘接好、耐振动及户外耐候性好的优点。

Description

油砂输送用耐低温耐油聚氨酯复合材料的制备方法及应用
技术领域
本发明涉及一种材料领域，具体涉及一种油砂输送用耐低温耐油聚氨酯复合材料的制备方法及应用。
背景技术
随着油砂提炼原油技术的进步，油砂开采石油的项目越来越多，但是由于油砂开采特别是露天开采及运输过程中对环境造成了很大的影响，所以油砂开采过程中管道运输的应用成为了必然。同时由于世界上85%的油砂储存集中在加拿大阿尔伯塔省北部地区，该地区常年都是低温环境因而对管道的低温下的耐磨、耐油及机械性能有严格的要求。目前国内管道输送用管道选材种类繁多，有硬质复合管（包括铸石、陶瓷、碳化硅复合管及双金属管）、软质复合管（包括钢橡、钢塑、钢聚氨酯、超高分子量聚乙烯复合管）、单质管（包括普通钢管、贝氏体钢管、特种钢管、超高分子量聚乙烯及其他塑料裸管）等。但是由于产品固有的某种缺陷或不足，如铸石管、陶瓷管，碳化硅管的重量重安装维护不便、弯头等管件不耐冲击易脱落、焊接连接时管道质量不同一存在明显薄弱环节；钢橡管的低温抗磨能力略显不足、抗压能力差易发生鼓包、脱裤子的故障；超高分子量聚乙烯管作为国际上已经普遍采用的新型抗磨管道材料，在我国的研究、开发、生产也有了数年的历史。目前国内超高分子量聚乙烯钢塑管由于技术的不成熟性，很难生产出真正意义上的超高分子量聚乙烯，在环境恶劣地区使用时，并未能适应其特殊工况条件和气候特点，在抗磨能力和热膨胀应力方面普遍还存在不小的问题。
发明内容
本发明的目的是为了克服常规耐磨材料的耐磨性能低，提供一种高耐磨性、回弹性好、耐热性好、抗张强度高、耐水解性突出、与金属粘接好、耐振动及户外耐候性好的油砂输送用耐低温耐油聚氨酯复合材料。
本发明是通过以下技术方案来实现：一种油砂输送用耐低温耐油聚氨酯复合材料的制备方法，聚四氢呋喃二醇48%~57%、聚氧化丙烯二醇10%~16%、甲苯二异氰酸酯10%~12%、1,5—萘二异氰酸酯6%~8%、二邻氯二苯胺甲烷9%~11%、二硫化钼5%~6%，制备方法包括以下步骤：
A、采用超声波辅助混合设备，按比例将聚四氢呋喃二醇、聚氧化丙烯二醇和二硫化钼混合后加入反应釜中，开动搅拌器，设定转速为45转/分同时把反应釜内的温度升至100℃，开始抽真空到负压为0.1MPa保持30分钟，后让反应釜内温度降到45℃左右；
B、保持温度在45℃左右，继续搅拌，然后缓慢向反应釜内加入1,5—萘二异氰酸酯与甲苯二异氰酸酯混合物，停止加热，由于该反应是放热反应，在反应过程中保持反应温度在80℃左右反应2h，然后停止加热直至温度降至50℃以下停止搅拌；
C、室温下保持反应釜密闭，将料静置24小时以上，后加热至反应釜内温度到90℃，开始抽真空到负压为0.1MPa保持2小时；
D、将二邻氯二苯胺甲烷加热融化后倒入聚氨酯浇注机B灌中恒温保存，同时将反应釜内的预聚体抽入浇注机A灌中恒温密封保存得到聚氨酯钢塑复合材料。
本发明的进一步改进在于：所述聚四氢呋喃二醇的分子量为800~1000，所述聚氧化丙烯二醇的分子量为1000，甲苯二异氰酸酯的纯度为80%~100%，二硫化钼的颗粒大小为325~600目。
油砂输送用耐低温耐油聚氨酯复合材料的制备方法所制的聚氨酯复合材料在钢管中的应用，通过开动聚氨酯浇注机，按配比及用量调整参数后打开浇注机头，将聚氨酯料浇注进入钢管中，开动离心浇铸机，保持转速在200~400转/分，温度控制在85℃恒温浇铸1h，然后将制品放入硫化仓中100℃下硫化8小时制得耐低温耐油聚氨酯钢塑复合管。
与现有技术相比，本发明具有以下优点：以耐磨填料二硫化钼通过超声波混合技术使其在材料中分散均匀，点面结合，有效提高了橡胶的力学性能、耐低温性能、耐磨性及耐油性能高与金属粘接好、耐振动及户外耐候性好，适用于汽车工业、钢塑复合管的内衬、高压密封件、防震橡胶等方面，制成的钢塑复合管是一种适于油砂输送用的钢塑复合管。
具体实施方式：
以下通过具体实施例说明本发明，但本发明并不仅仅限定于这些实施例。除非另有定义或说明，本文中所使用的所有专业科学用语与本领域技术熟练人员所熟悉的意义相同。
一种油砂输送用耐低温耐油聚氨酯复合材料的制备方法，所述聚氨酯钢塑复合材料按质量分数组成包括：聚四氢呋喃二醇48%~57%（分子量在800~1000）、聚氧化丙烯二醇10%~16%（分子量为1000）、甲苯二异氰酸酯10%~12%（纯度为80%~100%）、1,5—萘二异氰酸酯6%~8%、二邻氯二苯胺甲烷9%~11%、二硫化钼（颗粒大小325目）5%~6%，制备方法包括以下步骤：
A、采用超声波辅助混合设备，按比例将聚四氢呋喃二醇、聚氧化丙烯二醇和二硫化钼混合后加入反应釜中，开动搅拌器，设定转速为45转/分同时把反应釜内的温度升至100℃，开始抽真空到负压为0.1MPa保持30分钟，后让反应釜内温度降到45℃左右；
B、保持温度在45℃左右，继续搅拌，然后缓慢向反应釜内加入1,5—萘二异氰酸酯与甲苯二异氰酸酯混合物，停止加热，由于该反应是放热反应，在反应过程中保持反应温度在80℃左右反应2h，然后停止加热直至温度降至50℃以下停止搅拌；
C、室温下保持反应釜密闭，将料静置24小时以上，后加热至反应釜内温度到90℃，开始抽真空到负压为0.1MPa保持2小时；
D、将二邻氯二苯胺甲烷加热融化后倒入聚氨酯浇注机B灌中恒温保存，同时将反应釜内的预聚体抽入浇注机A灌中恒温密封保存得到聚氨酯钢塑复合材料。
采用油砂输送用耐低温耐油聚氨酯复合材料的制备方法所制的聚氨酯复合材料在钢管中的应用，通过开动聚氨酯浇注机，按配比及用量调整参数后打开浇注机头，将聚氨酯料浇注进入钢管中，开动离心浇铸机，保持转速在200~400转/分，温度控制在85℃恒温浇铸1h，然后将制品放入硫化仓中100℃下硫化8小时制得耐低温耐油聚氨酯钢塑复合管。
实施例1：
将40KG二硫化钼与300KG聚四氢呋喃二醇和100KG聚氧化丙烯二醇通过超声波辅助混合设备混合后通过真空泵抽入反应釜中加热到100℃并搅拌在负压0.1MPa下抽真空脱水30min后降温至45℃，然后加入70KG甲苯二异氰酸酯和50KG1,5—萘二异氰酸酯，搅拌并开始反应同时控制反应温度在85℃左右下，待反应温度降至室温后停止搅拌，并保持反应釜密封静置24h后重新加热升温至90℃搅拌并在负压0.1MPa下抽真空脱水2h后将釜中原料抽入浇注机A罐中密封保持料温在80℃，然后将二邻氯二苯胺甲烷加热融化后倒入浇注机B罐中恒温115℃保存。按照二邻氯二苯胺甲烷和预聚体质量比10：1.2设定浇注机参数后开始向钢管中浇注。将加完聚氨酯料的钢管在70℃下离心浇铸1h后放入硫化仓经100℃硫化8h制得成品。
实施例2：
将30KG二硫化钼与320KG聚四氢呋喃二醇和80KG聚氧化丙烯二醇通过超声波辅助混合设备混合后通过真空泵抽入反应釜中加热到100℃并搅拌在负压0.1MPa下抽真空脱水30min后降温至45℃，然后加入70KG甲苯二异氰酸酯和40KG1,5—萘二异氰酸酯，搅拌并开始反应同时控制反应温度在85℃左右下，待反应温度降至室温后停止搅拌，并保持反应釜密封静置24h后重新加热升温至90℃搅拌并在负压0.1MPa下抽真空脱水2h后将釜中原料抽入浇注机A罐中密封保持料温在80℃，然后将二邻氯二苯胺甲烷加热融化后倒入浇注机B罐中恒温115℃保存。按照二邻氯二苯胺甲烷和预聚体质量比10：1设定浇注机参数后开始向钢管中浇注。将加完聚氨酯料的钢管在80℃下离心浇铸1h后放入硫化仓经100℃硫化8h制得成品。
该复合管所用橡胶的主要优点是：高耐磨性、回弹性好、耐低温性好、抗张强度高、耐油性突出、与金属粘接好、耐振动及户外耐候性好。聚氨酯橡胶用途广泛，可用于汽车工业、钢塑复合管的内衬、高压密封件、防震橡胶等方面。生产时一般把聚醚或聚酯多元醇、异氰酸酯、防老剂以及扩链剂等通过一步或二步法在一定的温度和搅拌速度下混合后倒入模具中离心浇铸而成的，制备的耐低温耐油聚氨酯钢塑复合管以耐磨填料二硫化钼通过超声波混合技术使其在材料中分散均匀，点面结合，有效提高了橡胶的力学性能、耐低温性能、耐磨性及耐油性能，是一种适于油砂输送用的钢塑复合管。

Claims (3)

1.一种油砂输送用耐低温耐油聚氨酯复合材料的制备方法，其特征在于：所述聚氨酯钢塑复合材料按质量分数组成包括：聚四氢呋喃二醇48%~57%、聚氧化丙烯二醇10%~16%、甲苯二异氰酸酯10%~12%、1,5—萘二异氰酸酯6%~8%、二邻氯二苯胺甲烷9%~11%、二硫化钼5%~6%，制备方法包括以下步骤：
A、采用超声波辅助混合设备，按比例将聚四氢呋喃二醇、聚氧化丙烯二醇和二硫化钼混合后加入反应釜中，开动搅拌器，设定转速为45转/分同时把反应釜内的温度升至100℃，开始抽真空到负压为0.1MPa保持30分钟，后让反应釜内温度降到45℃左右；
B、保持温度在45℃左右，继续搅拌，然后缓慢向反应釜内加入1,5—萘二异氰酸酯与甲苯二异氰酸酯混合物，停止加热，由于该反应是放热反应，在反应过程中保持反应温度在80℃左右反应2h，然后停止加热直至温度降至50℃以下停止搅拌；
C、室温下保持反应釜密闭，将料静置24小时以上，后加热至反应釜内温度到90℃，开始抽真空到负压为0.1MPa保持2小时；
D、将二邻氯二苯胺甲烷加热融化后倒入聚氨酯浇注机B灌中恒温保存，同时将反应釜内的预聚体抽入浇注机A灌中恒温密封保存得到聚氨酯钢塑复合材料。
2.根据权利要求1所述油砂输送用耐低温耐油聚氨酯复合材料的制备方法，其特征在于：所述聚四氢呋喃二醇的分子量为800~1000，所述聚氧化丙烯二醇的分子量为1000，所述甲苯二异氰酸酯的纯度为80%~100%，所述二硫化钼的颗粒大小为325目。
3.根据权利要求1所述油砂输送用耐低温耐油聚氨酯复合材料的制备方法所制的聚氨酯复合材料在钢管中的应用，通过开动聚氨酯浇注机，按配比及用量调整参数后打开浇注机头，将聚氨酯料浇注进入钢管中，开动离心浇铸机，保持转速在200~400转/分，温度控制在85℃恒温浇铸1h，然后将制品放入硫化仓中100℃下硫化8小时制得耐低温耐油聚氨酯钢塑复合管。
CN201410533467.2A 2014-10-11 2014-10-11 油砂输送用耐低温耐油聚氨酯复合材料的制备方法及应用 Pending CN104327242A (zh)

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