CN111234129A - 一种高性能有机金属型分散剂及其制备方法 - Google Patents
一种高性能有机金属型分散剂及其制备方法 Download PDFInfo
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- 125000001844 prenyl group Chemical group [H]C([*])([H])C([H])=C(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
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- 239000012535 impurity Substances 0.000 abstract description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 5
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- 229910010272 inorganic material Inorganic materials 0.000 description 4
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- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
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Abstract
本发明提供了一种高性能有机金属型分散剂,其原料包括以下组分,各组分以及各组分的质量份分别为:羧酸单体500~700份、镁单体0.2~0.5份、长链单体50~100份、羟基单体2~5份,纯化水40~80份、分子量控制剂1~4份、引发剂1~3份、吸附硅粉0.1~1份、铝单体0.5~1份;所述高性能有机金属型分散剂为粉体形态,其微观形态为均匀球体颗粒,颗粒平均粒径为100μm~300μm。本发明所制得的高性能有机金属型分散剂粉体均匀,使用方便简单,且在常温环境下保存24个月不会失效,对于矾土及高硅体系耐火浇注料有良好的分散作用,对杂质有明显的抵抗能力。
Description
技术领域
本发明属于高分子合成技术领域,涉及一种分散剂,具体涉及一种高性能有机金属型分散剂。
背景技术
无机材料在水溶液中的分散一直都是涂料、建筑等行业的重大问题,现在已有的分散剂存在许多重大的弊端,耐火材料尤为甚之。耐火材料是一种利用于高温环境中的陶瓷材料,现阶段耐火材料用分散剂存在有添加量过大、对体系有选择性、对于部分无机材料会出现失效等问题。现阶段工业上大多数还是使用一些三聚磷酸钠之类的老式无机材料做分散,此类耐火材料用分散剂受到杂质制约影响较大,目前在高纯的刚玉体系中的分散性尚可,但是在纯度较低的高硅灰含量及矾土体系难以达到理想的分散效果。同时,现有的耐火材料用分散剂还存在有可能会污染环境以及对设备有一定要求的缺陷,这些都是制约工业发展的重大问题。因此研发一款新型的适用广泛抗杂质强的、具有较广适应性的有机高分子分散剂正成为社会的重要需求。
发明内容
本发明所要解决的技术问题是针对现有技术中存在的上述不足,提供一种高性能有机金属型分散剂及其制备方法,所述高性能有机金属型分散剂粉体均匀,使用方便简单,且在常温环境下保存24个月不会失效,对于矾土及高硅体系耐火浇注料有良好的分散作用,对杂质有明显的抵抗能力。
为解决上述技术问题,本发明提供的技术方案是:
一种高性能有机金属型分散剂,其原料包括以下组分,各组分以及各组分的质量份分别为:羧酸单体500~700份、镁单体0.2~0.5份、长链单体50~100份、羟基单体2~5份,纯化水40~80份、分子量控制剂1~4份、引发剂1~3份、吸附硅粉0.1~1份、铝单体0.5~1份;所述高性能有机金属型分散剂为粉体形态,其微观形态为均匀球体颗粒,颗粒平均粒径为100μm~300μm。
所述的羧酸单体为甲基丙烯酸、丙烯酸、马来酸酐、富马来酸中的一种或两种以上的混合物。
所述镁单体为甲基丙烯酸镁或者丙烯酸镁。
所述的长链单体为分子量为8000~15000的异戊烯醇聚氧乙烯醚、分子量为6300~15000的甲基烯丙醇聚氧乙烯醚按比例4:1的混合物。
所述羟基单体为甲基丙烯酸羟乙酯或者丙烯酸羟乙酯。
所述的分子量控制剂为丙烯酸-1,3-磺酸内酯、2-丙烯酰胺-2-甲基丙磺酸中的一种或两种的混合物。
所述的引发剂为过硫酸钾与偶氮二异丁腈的混合物,混合质量比为2:1~4:1。
所述的吸附硅粉为比表面积大于100m2/g的气相二氧化硅与普通矾土粉按质量比例1:10~1:100的比例混合的混合物。
所述铝单体为按照结构式(RO)X-AL(-Dn)-(-OCOR’)m合成的鳌合有机铝单体,式中,Dn代表配位基团,RO为烷氧基,COR′为与高聚物基料作用的基团。
本发明还提供了上述高性能有机金属型分散剂的制备方法,包括以下步骤:按比例称取各原料,先将羧酸单体、纯化水、长链单体加入反应釜并升温至70℃,当温度到达后开启搅拌,搅拌速率为25~35rpm,保持15~35min后,加入镁单体、羟基单体、引发剂及分子量控制剂保持搅拌15min升温至90℃,保温5h,然后加入铝单体并保持搅拌30min,最后倒入造粒机并缓慢加入吸附硅粉,吸附硅粉全部加入后保持10~20min出料即可得到上述高性能有机金属型分散剂。
本发明中采用特殊的合成工艺及制粉工艺制备而成的粉体分散剂,其粉体形态为均匀球形,使用方便简单,且在常温环境下保存24个月不会失效。由于其中引入了两性材料,调整了整体耐火材料的极性变化同时加入的鳌合AL、鳌合Mg材料对于杂质材料起到了吸附及遮盖作用,减少了对分散材料的吸附从而提升了整体的分散性。以此达到对于矾土及高硅体系耐火浇注料有良好的分散作用,对杂质有明显的抵抗能力。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案,下面结合实施例对本发明作进一步详细描述。
以下实施例中,所述的长链单体为分子量为8000~15000的异戊烯醇聚氧乙烯醚、分子量为6300~15000的甲基烯丙醇聚氧乙烯醚按比例4:1的混合物。所述的引发剂为过硫酸钾与偶氮二异丁腈的混合物,混合质量比为2:1~4:1。所述的吸附硅粉为比表面积大于100m2/g的气相二氧化硅与普通矾土粉按质量比例1:10~1:100的比例混合的混合物。所述铝单体为按照结构式(RO)X-AL(-Dn)-(-OCOR’)m合成的鳌合有机铝单体,式中,Dn代表配位基团,RO为烷氧基,COR′为与高聚物基料作用的基团。
实施例1
本实施例原料中所用羧酸单体(甲基丙烯酸)700份、甲基丙烯酸镁0.2份、长链单体50份、甲基丙烯酸羟乙酯5份、纯化水60份、丙烯酸-1,3-磺酸内酯3.5份、引发剂1.5份、吸附硅粉0.5份、Al单体1份。
本实施例中的制备方法如下:将羧酸单体、纯化水、长链单体加入反应釜并升温至70℃,当温度到达后开启搅拌,搅拌速率设定为25rpm,保持35min后,加入镁单体、羟基单体、引发剂及分子量控制剂保持搅拌15min升温至90℃保温5h,然后倒入Al单体并保持30min搅拌倒入造粒机并缓慢加入吸附硅粉。吸附硅粉全部加入后保持10~20min出料即可。即得到粉体形态的高性能有机金属型分散剂SP157,其微观形态为均匀球体颗粒,颗粒平均粒径为300μm。
将本实施例所得高性能有机金属型分散剂进行检测,检测结果如表1所示。
表1
实施例2
本实施例原料中所用组分及重量配比为:羧酸单体(甲基丙烯酸+丙烯酸)600份、丙烯酸镁0.3份、长链单体100份、丙烯酸羟乙酯2份、纯化水60份、2-丙烯酰胺-2-甲基丙磺酸2份、引发剂1.5份、吸附硅粉0.5份、Al单体0.5份。
本实施例中的制备方法如下:将羧酸单体、纯化水、长链单体加入反应釜并升温至70℃,当温度到达后开启搅拌,搅拌速率设定为25rpm,保持15min后,加入镁单体、羟基单体、引发剂及分子量控制剂保持搅拌15min升温至90℃保温5h,然后倒入Al单体并保持30min搅拌倒入造粒机并缓慢加入吸附硅粉。吸附硅粉全部加入后保持10~20min出料即可即得到粉体形态的高性能有机金属型分散剂SP157,其微观形态为均匀球体颗粒,颗粒平均粒径为120μm。
将本实施例所得高性能有机金属型分散剂进行检测,检测结果如表2所示。
表2
实施例3
本实施例原料中各组分及重量配比为:羧酸单体(马来酸酐+富马来酸)550份、甲基丙烯酸镁0.5份、长链单体100份、甲基丙烯酸羟乙酯3份、纯化水60份、分子量控制剂(丙烯酸-1,3-磺酸内酯、2-丙烯酰胺-2-甲基丙磺酸)2份、引发剂1.5份、吸附硅粉0.5份、Al单体0.5份。
本实施例中的制备方法如下:将羧酸单体、纯化水、长链单体加入反应釜并升温至70℃,当温度到达后开启搅拌,搅拌速率设定为25rpm,保持35min后,加入镁单体、羟基单体、引发剂及分子量控制剂保持搅拌15min升温至90℃保温5h,然后倒入Al单体并保持30min搅拌倒入造粒机并缓慢加入吸附硅粉。吸附硅粉全部加入后保持10~20min出料即可。即得到粉体形态的高性能有机金属型分散剂SP157,其微观形态为均匀球体颗粒,颗粒平均粒径为150μm。
将本实施例所得高性能有机金属型分散剂进行检测,检测结果如表3所示。
表3
将上述三个实施例中所制备的高性能有机金属型分散剂SP157加入矾土及高硅体系耐火浇注料中进行测试,同时采用常规分散剂三聚磷酸钠和六偏磷酸钠作为对比,测试结果如表4所示。从表4中可以看出本发明所制备的分散剂在较小的添加量的前提下,能够具备更好的流动性,从而证明上述分散剂能起到良好的分散作用,对无机材料中的杂质有明显的抵抗能力。
表4
Claims (10)
1.一种高性能有机金属型分散剂,其特征在于其原料包括以下组分,各组分以及各组分的质量份分别为:羧酸单体500~700份、镁单体0.2~0.5份、长链单体50~100份、羟基单体2~5份,纯化水40~80份、分子量控制剂1~4份、引发剂1~3份、吸附硅粉0.1~1份、铝单体0.5~1份;所述高性能有机金属型分散剂为粉体形态,其微观形态为均匀球体颗粒,颗粒平均粒径为100μm~300μm。
2.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述的羧酸单体为甲基丙烯酸、丙烯酸、马来酸酐、富马来酸中的一种或两种以上的混合物。
3.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述镁单体为甲基丙烯酸镁或者丙烯酸镁。
4.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述的长链单体为分子量为8000~15000的异戊烯醇聚氧乙烯醚、分子量为6300~15000的甲基烯丙醇聚氧乙烯醚按比例4:1的混合物。
5.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述羟基单体为甲基丙烯酸羟乙酯或者丙烯酸羟乙酯。
6.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述的分子量控制剂为丙烯酸-1,3-磺酸内酯、2-丙烯酰胺-2-甲基丙磺酸中的一种或两种的混合物。
7.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述的引发剂为过硫酸钾与偶氮二异丁腈的混合物,混合质量比为2:1~4:1。
8.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述的吸附硅粉为比表面积大于100m2/g的气相二氧化硅与普通矾土粉按质量比例1:10~1:100的比例混合的混合物。
9.根据权利要求1所述的高性能有机金属型分散剂,其特征在于:所述铝单体为按照结构式(RO)X-AL(-Dn)-(-OCOR’)m合成的鳌合有机铝单体,式中,Dn代表配位基团,RO为烷氧基,COR′为与高聚物基料作用的基团。
10.权利要求1~9任一所述的高性能有机金属型分散剂的制备方法,其特征在于包括以下步骤:按比例称取各原料,先将羧酸单体、纯化水、长链单体加入反应釜并升温至70℃,当温度到达后开启搅拌,搅拌速率为25~35rpm,保持15~35min后,加入镁单体、羟基单体、引发剂及分子量控制剂保持搅拌15min升温至90℃,保温5h,然后加入铝单体并保持搅拌30min,最后倒入造粒机并缓慢加入吸附硅粉,吸附硅粉全部加入后保持10~20min出料即可得到上述高性能有机金属型分散剂。
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