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Solid polycarboxylate superplasticizer and preparation method thereof
The invention belongs to the technical field of water reducing agents, and discloses a solid polycarboxylate superplasticizer and a preparation method thereof. The solid polycarboxylate superplasticizer comprises the following components by weight: 800-880 parts of a polymeric macromonomer, 3-5 parts of an initiator, 60-120 parts of a material A, 10-30 parts of a material B, and 4-8 parts of a chain transfer agent, wherein the material A is one or two selected from acrylic acid and methacrylic acid, and the material B is one or two selected from hydroxyethyl acrylate and hydroxypropyl acrylate. The solid polycarboxylate superplasticizer can be prepared under the conditions of common heat and no use of a solvent; and the obtained polycarboxylate superplasticizer has high water-reducing rate and good slump retaining performance, is simple and convenient to package and use, has excellent effect, has no obvious difference with the use effect of traditional liquid polycarboxylic acid mother liquor, is better than common powder products in the market, effectively overcomes the defects of the liquid mother liquor prepared through the traditional process in packaging, storage and transportation and has wide market application prospects.
本发明属于减水剂技术领域，公开了一种固体型聚羧酸减水剂及其制备方法，该固体型聚羧酸减水剂，包括如下重量份的组分：800‑880份的聚合大单体、3‑5份的引发剂、60‑120份的A料、10‑30份的B料，以及4‑8份的链转移剂；其中，所述A料为丙烯酸或甲基丙烯酸中的一种或两种，B料为丙烯酸羟乙酯或丙烯酸羟丙酯中的一种或两种。可在普通热度及不使用溶剂的条件下制得固体型聚羧酸减水剂，所得产品具有高减水率及良好的保坍性能，包装及使用简洁方便、效果优良，与传统液体聚羧酸母液使用效果并无明显差别，同时好于市场常见粉剂产品，有效解决了传统工艺的液体母液在包装、储存及运输上的缺陷，市场应用前景广阔。
Solid polycarboxylate superplasticizer and preparation method thereof
The invention belongs to the technical field of water reducing agents, and discloses a solid polycarboxylate superplasticizer and a preparation method thereof. The solid polycarboxylate superplasticizer comprises the following components by weight: 800-880 parts of a polymeric macromonomer, 3-5 parts of an initiator, 60-120 parts of a material A, 10-30 parts of a material B, and 4-8 parts of a chain transfer agent, wherein the material A is one or two selected from acrylic acid and methacrylic acid, and the material B is one or two selected from hydroxyethyl acrylate and hydroxypropyl acrylate. The solid polycarboxylate superplasticizer can be prepared under the conditions of common heat and no use of a solvent; and the obtained polycarboxylate superplasticizer has high water-reducing rate and good slump retaining performance, is simple and convenient to package and use, has excellent effect, has no obvious difference with the use effect of traditional liquid polycarboxylic acid mother liquor, is better than common powder products in the market, effectively overcomes the defects of the liquid mother liquor prepared through the traditional process in packaging, storage and transportation and has wide market application prospects.
本发明属于减水剂技术领域，公开了一种固体型聚羧酸减水剂及其制备方法，该固体型聚羧酸减水剂，包括如下重量份的组分：800‑880份的聚合大单体、3‑5份的引发剂、60‑120份的A料、10‑30份的B料，以及4‑8份的链转移剂；其中，所述A料为丙烯酸或甲基丙烯酸中的一种或两种，B料为丙烯酸羟乙酯或丙烯酸羟丙酯中的一种或两种。可在普通热度及不使用溶剂的条件下制得固体型聚羧酸减水剂，所得产品具有高减水率及良好的保坍性能，包装及使用简洁方便、效果优良，与传统液体聚羧酸母液使用效果并无明显差别，同时好于市场常见粉剂产品，有效解决了传统工艺的液体母液在包装、储存及运输上的缺陷，市场应用前景广阔。
Solid polycarboxylate superplasticizer and preparation method thereof
固体型聚羧酸减水剂及其制备方法
HOU QINGWEI (author) / QIAN QIANG (author) / HOU JINGMING (author) / XU YILUN (author)
2021-05-28
Patent
Electronic Resource
Chinese
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