CN110294829A - 一种聚氨酯丙烯酰胺聚合物及其制备方法 - Google Patents
一种聚氨酯丙烯酰胺聚合物及其制备方法 Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F120/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F120/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
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- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
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Abstract
本发明公开了一种聚氨酯丙烯酰胺聚合物及其制备方法，该方法包括以下步骤：将分散剂和乳化剂混合得油相，水分散型多异氰酸酯与含有羟基或胺基的可聚合单体反应得到水分散液，该水分散液中加入丙烯酰胺、物质A、过硫酸盐得到水相；在搅拌状态下，向油相中加入水相，混合液搅拌均匀后，混合液引发聚合得到聚合物。通过上述方法制备的聚氨酯丙烯酰胺聚合物，其组成包括聚丙烯酰胺类聚合物、聚氨酯，乳化剂和分散剂等。本发明制备的聚氨酯丙烯酰胺聚合物作为聚合物驱材料能提高石油采收率。
Description
技术领域
本发明涉及到石油开采技术领域，尤其涉及到一种聚氨酯丙烯酰胺聚合物及其制备方法。
背景技术
聚合物驱作为提高石油采收率的一种重要手段，已在油田得到广泛的应用，聚合物驱有很多种，例如：交联聚合物、微凝胶和聚合物微球等。这些聚合物材料通常以聚丙烯酰胺为主要组份，聚丙烯酰胺在油藏中耐温差，在温度高时易水解或者分解。为提高聚合物驱材料的耐温性能，很多方法已经被实施，例如：制备高分子量的聚丙烯酰胺、疏水缔合物；引入耐温单体(N-乙烯吡咯烷酮、2-丙烯酰胺基-2-甲基丙磺酸和对乙烯苯黄酸等)共聚；掺杂或接枝天然高分子(淀粉、纤维素和环糊精等)；引入无机材料(二氧化硅微球)。通过这些方法制备得到的聚合物驱材料耐温性能得到提高，但其作为提高采收率材料，性能存在着一定不足。
设计制备性能好的聚合物驱材料是提高采收率的关键，也是聚合物驱材料的发展方向，本发明提供了一种新的聚合物驱材料
发明内容
本发明提供了一种聚氨酯丙烯酰胺聚合物驱材料的制备方法，其特征在于，包括以下步骤：
取40～400重量份分散剂和0.1～40重量份乳化剂在设定温度下搅拌混合，得到油相；
取2～60重量份含有羟基或胺基的可聚合单体、5～150重量份水分散型多异氰酸酯和10～300重量份水混合反应得到水相1，其中所述含有羟基或胺基的可聚合单体为N-羟丙基丙烯酰胺、N-羟乙基丙烯酰胺、N-羟甲基丙烯酰胺、N-(2-羟丙基)甲基丙烯酰胺和N-(2-氨基乙基)丙烯酰胺等含有端羟基或氨基的丙烯酰胺化合物；
取0～90重量份丙烯酰胺、0～50重量份物质A、0.05～1重量份过硫酸盐、溶解于所述水相1得到水相2，其中，所述物质A为2-丙烯酰胺基-2-甲基丙磺酸钠、对苯乙烯磺酸钠、N-乙烯基吡咯烷酮、甲基丙烯酰氧乙基三甲基溴化铵和甲基丙烯酰氧乙基二甲基丁基氯化铵中的一种或几种；
在搅拌状态下，向所述油相中加入水相2，搅拌乳化、加入亚硫酸盐水溶液或叔胺或加热引发聚合得到聚氨酯丙烯酰胺聚合物。
所述过硫酸盐为过硫酸钠、过硫酸钾或过硫酸铵中的一种或几种。
所述亚硫酸盐为亚硫酸氢钠、亚硫酸钠或亚硫酸铵构成的组中的一种或几种。
所述叔胺为选自由N，N-二甲基乙醇胺、N，N-二乙基乙醇胺、三乙醇胺、三乙胺和三甲胺中的一种或几种。
所述分散剂为石蜡油、环烷基油、白油和硅油中的一种或几种。
所述乳化剂为所述乳化剂为司盘20、司盘40、司盘60、司盘65、司盘80、司盘85、吐温20、吐温40、吐温60、吐温65、吐温80或吐温81组成组中的一种或几种。
所述水相1和水相2是在室温或以下制备，水相2加入到油是在室温或以下。
所述聚合反应的温度为0～80℃。所述聚合反应进行0.5～2小时。
具体实施方式
本发明描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
首选需要说明的是以下实施例中，所用水浴加热器为DF-101S集热式恒温加热搅拌器，所用搅拌器为IKARW20型电动搅拌机，所用白油在40℃下的运动粘度为9.8mm2/s。
本发明实施例提供了一种聚氨酯丙烯酰胺聚合物及其制备方法，其特征在于，包括以下步骤：
取40～400重量份分散剂和0.1～40重量份乳化剂在设定温度下搅拌混合，得到油相；
取2～60重量份含有羟基或胺基的可聚合单体、5～150重量份水分散型多异氰酸酯和10～300重量份水混合反应得到水相1，其中所述含有羟基或胺基的可聚合单体为N-羟丙基丙烯酰胺、N-羟乙基丙烯酰胺、N-羟甲基丙烯酰胺、N-(2-羟丙基)甲基丙烯酰胺和N-(2-氨基乙基)丙烯酰胺等含有端羟基或氨基的丙烯酰胺化合物；
取0～90重量份丙烯酰胺、0～50重量份物质A、0.05～1重量份过硫酸盐、溶解于所述水相1得到水相2，其中，所述物质A为2-丙烯酰胺基-2-甲基丙磺酸钠、对苯乙烯磺酸钠、N-乙烯基吡咯烷酮、甲基丙烯酰氧乙基三甲基溴化铵和甲基丙烯酰氧乙基二甲基丁基氯化铵中的一种或几种；
在搅拌状态下，向所述油相中加入水相2，搅拌乳化、加入亚硫酸盐水溶液或叔胺或加热引发聚合得到聚氨酯丙烯酰胺聚合物。
为了方便理解本发明实施例提供的方法，下面结合具体的实施例对其进行详细的描述。
实施例1
将0.08g司盘80、0.02g吐温85和40g白油在50℃～60℃下混合，得油相，冷却至室温。
室温下将2gN-羟乙基丙烯酰胺和5g水分散型多异氰酸酯与20g水混合，室温下在300转/min的搅拌速率下搅拌3小时，得水相1；把0.05～1重量份过硫酸钾溶解于所述水相1得到水相2。
室温下在400转/min的搅拌速率下将水相2滴加到油相中，搅拌30分钟后，升温到75℃引发聚合得到聚氨酯丙烯酰胺聚合物。
实施例2
将40g司盘80和400g白油在60℃～70℃下混合，得油相，冷却至室温。
室温下将60gN-羟甲基丙烯酰胺和150g水分散型多异氰酸酯与300g水混合，室温下在300转/min的搅拌速率下搅拌3小时，得水相1；把90重量份丙烯酰胺、50重量份对乙烯苯磺酸钠和1重量份过硫酸钠溶解于所述水相1得到水相2。
室温下在400转/min的搅拌速率下将水相2滴加到油相中，搅拌30分钟后，加入10g三乙醇胺引发聚合得到聚氨酯丙烯酰胺聚合物。
实施例3
将20g司盘80、5g吐温60和400g白油在60℃～70℃下混合，得油相，冷却至室温。
室温下将2gN-羟乙基丙烯酰胺和5g水分散型多异氰酸酯与300g水混合，室温下在500转/min的搅拌速率下搅拌3小时，得水相1；把90重量份丙烯酰胺、50重量份2-丙烯酰胺基-2-甲基丙磺酸钠和1重量份过硫酸钾溶解于所述水相1得到水相2。
室温下在500转/min的搅拌速率下将水相2滴加到油相中，搅拌30分钟后，加入8g亚硫酸氢钠(质量分数50％)引发聚合得到聚氨酯丙烯酰胺聚合物。
实施例4
将10g司盘80和200g白油在40℃～50℃下混合，得油相，冷却至室温。
室温下将30gN-羟乙基丙烯酰胺和75g水分散型多异氰酸酯与150g水混合，室温下在400转/min的搅拌速率下搅拌3小时，得水相1；把40重量份丙烯酰胺、25重量份N-乙烯吡咯烷酮和1重量份过硫酸钾溶解于所述水相1得到水相2。
室温下在400转/min的搅拌速率下将水相2滴加到油相中，搅拌30分钟后，加入5gN，N-二乙基乙醇胺引发聚合得到聚氨酯丙烯酰胺聚合物。
本发明还提供了一种聚氨酯丙烯酰胺聚合物，该聚合物采用上述的乳液聚合的制备方法得到。具体的，以丙烯酰胺、丙烯酸钠、N-羟乙基丙烯酰胺、2-丙烯酰胺基-2-甲基丙磺酸钠、对苯乙烯磺酸钠等为聚合单体，以白油为分散相，加入水分散型多异氰酸酯，采用乳液聚合得到聚氨酯丙烯酰胺聚合物，该方法制备的聚氨酯丙烯酰胺聚合物可用作提高石油采收率材料。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
Claims (9)
1.一种聚氨酯丙烯酰胺聚合物聚合物的制备方法，其特征在于，包括以下步骤：
取40～400重量份分散剂和0.1～40重量份乳化剂在设定温度下搅拌混合，得到油相；
取2～60重量份含有羟基或胺基的可聚合单体、5～150重量份水分散型多异氰酸酯和10～300重量份水混合反应得到水相1，其中所述含有羟基或胺基的可聚合单体为N-羟丙基丙烯酰胺、N-羟乙基丙烯酰胺、N-羟甲基丙烯酰胺、N-(2-羟丙基)甲基丙烯酰胺和N-(2-氨基乙基)丙烯酰胺等含有端羟基或氨基的丙烯酰胺化合物；
取0～90重量份丙烯酰胺、0～50重量份物质A和0.05～1重量份过硫酸盐溶解于所述水相1得到水相2，其中所述物质A为2-丙烯酰胺基-2-甲基丙磺酸钠、对苯乙烯磺酸钠、N-乙烯基吡咯烷酮、甲基丙烯酰氧乙基三甲基溴化铵和甲基丙烯酰氧乙基二甲基丁基氯化铵中的一种或几种；
在搅拌状态下，向所述油相中加入水相2，搅拌乳化、加入亚硫酸盐水溶液或叔胺或加热引发聚合得到聚氨酯丙烯酰胺聚合物。
2.如权利要求1所述的聚氨酯丙烯酰胺聚合物的制备方法，其特征在于，所述过硫酸盐为过硫酸钠、过硫酸钾或过硫酸铵中的一种或几种。
3.如权利要求1所述的方法，其特征在于，所述亚硫酸盐为亚硫酸氢钠、亚硫酸钠或亚硫酸铵构成的组中的一种或几种；叔胺为选自由N，N-二甲基乙醇胺、N，N-二乙基乙醇胺、三乙醇胺、三乙胺和三甲胺中的一种或几种。
4.根据权利要求1所述的方法，其特征在于，所述分散剂为石蜡油、环烷基油、白油和硅油中的一种或几种。
5.根据权利要求1所述的方法，其特征在于，所述乳化剂为司盘20、司盘40、司盘60、司盘65、司盘80、司盘85、吐温20、吐温40、吐温60、吐温65、吐温80或吐温81组成组中的一种或几种。
6.根据权利要求1所述的方法，其特征在于，所述聚合反应的温度为0～80℃。
7.如权利要求1所述的方法，其特征在于，还包括水相1和水相2是在室温或以下制备，水相2加入到油相是在室温或以下。
8.根据权利要求1所述的方法，其特征在于，所述聚合反应进行0.5～2小时。
9.根据权利要求1所述的方法，其特征在于，所述聚合制备的聚氨酯丙烯酰胺聚合物具有弹性。
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