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Slump retaining type water reducing agent containing polyether phosphate monomer and preparation method thereof
The invention relates to a slump retaining type water reducing agent containing a polyether phosphate monomer and a preparation method thereof. The polyether phosphate monomer is prepared by the following steps: adding 200 parts of a polyether macro-monomer into a reaction device, heating to 60-70 DEG C, slowly adding 10-20 parts of phosphorus pentoxide in batches after the polyether macro-monomeris molten, heating to 80-85 DEG C, adding a catalyst, keeping the temperature for 3-5 hours, adding 1-5 parts of deionized water, and keeping the temperature for 2-4 hours at 85-95 DEG C. The slump retaining type water reducing agent containing a polyether phosphate monomer is prepared from the polyether phosphate monomer, unsaturated carboxylic acid and unsaturated hydroxyl ester, the polyetherphosphate monomer, unsaturated carboxylic acid and unsaturated hydroxyl ester carry out polymerization, then the polymerization reaction is neutralized by liquid caustic soda to obtain the water reducing agent; and the water reducing agent has the advantages of low mixing amount, small slump time loss and good workability when the water reducing agent is used under the situation that the mud content of gravel is large.
本发明涉及一种含有聚醚磷酸酯单体的保坍型减水剂及其制备方法，所述聚醚磷酸酯单体按照以下方法制备得到：按质量份计，将200份聚醚大单体加入到反应装置中，加热至60‑70℃，待聚醚大单体熔融后分批次缓慢加入10‑20份五氧化二磷，将温度升至80‑85℃，加入催化剂，保温4±1h，再加入1‑5份去离子水，90±5℃下保温3±1h。所述含聚醚磷酸酯单体的保坍型减水剂是由包含所述聚醚磷酸酯单体与不饱和羧酸和不饱和羟基酯，发生聚合反应，之后与液碱发生中和反应，制备得到，其在砂石材料含泥量大的情况下使用，仍具有掺量低、坍落度经时损失小、和易性好优点。
Slump retaining type water reducing agent containing polyether phosphate monomer and preparation method thereof
The invention relates to a slump retaining type water reducing agent containing a polyether phosphate monomer and a preparation method thereof. The polyether phosphate monomer is prepared by the following steps: adding 200 parts of a polyether macro-monomer into a reaction device, heating to 60-70 DEG C, slowly adding 10-20 parts of phosphorus pentoxide in batches after the polyether macro-monomeris molten, heating to 80-85 DEG C, adding a catalyst, keeping the temperature for 3-5 hours, adding 1-5 parts of deionized water, and keeping the temperature for 2-4 hours at 85-95 DEG C. The slump retaining type water reducing agent containing a polyether phosphate monomer is prepared from the polyether phosphate monomer, unsaturated carboxylic acid and unsaturated hydroxyl ester, the polyetherphosphate monomer, unsaturated carboxylic acid and unsaturated hydroxyl ester carry out polymerization, then the polymerization reaction is neutralized by liquid caustic soda to obtain the water reducing agent; and the water reducing agent has the advantages of low mixing amount, small slump time loss and good workability when the water reducing agent is used under the situation that the mud content of gravel is large.
本发明涉及一种含有聚醚磷酸酯单体的保坍型减水剂及其制备方法，所述聚醚磷酸酯单体按照以下方法制备得到：按质量份计，将200份聚醚大单体加入到反应装置中，加热至60‑70℃，待聚醚大单体熔融后分批次缓慢加入10‑20份五氧化二磷，将温度升至80‑85℃，加入催化剂，保温4±1h，再加入1‑5份去离子水，90±5℃下保温3±1h。所述含聚醚磷酸酯单体的保坍型减水剂是由包含所述聚醚磷酸酯单体与不饱和羧酸和不饱和羟基酯，发生聚合反应，之后与液碱发生中和反应，制备得到，其在砂石材料含泥量大的情况下使用，仍具有掺量低、坍落度经时损失小、和易性好优点。
Slump retaining type water reducing agent containing polyether phosphate monomer and preparation method thereof
一种含有聚醚磷酸酯单体的保坍型减水剂及其制备方法
HUANG HAICHAO (author) / ZHENG TONGLIN (author) / LIAO YIJIAN (author) / LUO QUANMAO (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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