A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Slow-release lignin-based polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention relates to a slow-release lignin-based polycarboxylic acid high-performance water reducing agent and a preparation method thereof. The slow-release lignin-based polycarboxylic acid high-performance water reducing agent is prepared from the following synthetic raw materials: a high-molecular-weight isopentenyl polyoxyethylene ether macromonomer, sodium lignin sulfonate, an isomeric ester comonomer and a polyether comonomer. The slow-release lignin-based polycarboxylic acid water reducing agent is stable in performance, can be combined with other compound components, has good compatibility, meets the requirement of slump retaining performance of construction concrete, and solves the problems of poor slump retaining effect, bleeding, segregation, bottom digging and the like in the practical application process of the polycarboxylic acid water reducing agent. In addition, the preparation method is simple in production process, easy to operate and low in reaction temperature requirements, so production cost is reduced, and the preparation method is environment-friendly. The slow-release lignin-based polycarboxylic acid high-performance water reducing agent of the invention has the advantages of easily available raw materials, simple preparation process, environmental protection performance, safety, easy mass production, good slow release effect and the like, and has wide application prospects.
一种缓释型木质素基聚羧酸高性能减水剂及其制备方法，其中缓释型木质素基聚羧酸高性能减水剂的合成原料含有大分子量的异戊烯基聚氧乙烯醚大单体、木质素磺酸钠、异构酯类共聚单体和聚醚类共聚单体。该缓释型木质素基聚羧酸减水剂性能稳定，可与其他复配组分组合相容性较好，满足施工混凝土保坍性能的要求，解决了聚羧酸减水剂在实际应用过程中出现的保坍效果差、泌水、离析、扒底现象等难题。再者本发明的制备方法，生产工艺简单易于操作，而且反应温度要求不高，从而降低了生产成本低且环保。本发明的原材料易得、制备工艺简单、环保安全、易于大批量生产、缓释效果较好等优点，应用前景广阔。
Slow-release lignin-based polycarboxylic acid high-performance water reducing agent and preparation method thereof
The invention relates to a slow-release lignin-based polycarboxylic acid high-performance water reducing agent and a preparation method thereof. The slow-release lignin-based polycarboxylic acid high-performance water reducing agent is prepared from the following synthetic raw materials: a high-molecular-weight isopentenyl polyoxyethylene ether macromonomer, sodium lignin sulfonate, an isomeric ester comonomer and a polyether comonomer. The slow-release lignin-based polycarboxylic acid water reducing agent is stable in performance, can be combined with other compound components, has good compatibility, meets the requirement of slump retaining performance of construction concrete, and solves the problems of poor slump retaining effect, bleeding, segregation, bottom digging and the like in the practical application process of the polycarboxylic acid water reducing agent. In addition, the preparation method is simple in production process, easy to operate and low in reaction temperature requirements, so production cost is reduced, and the preparation method is environment-friendly. The slow-release lignin-based polycarboxylic acid high-performance water reducing agent of the invention has the advantages of easily available raw materials, simple preparation process, environmental protection performance, safety, easy mass production, good slow release effect and the like, and has wide application prospects.
一种缓释型木质素基聚羧酸高性能减水剂及其制备方法，其中缓释型木质素基聚羧酸高性能减水剂的合成原料含有大分子量的异戊烯基聚氧乙烯醚大单体、木质素磺酸钠、异构酯类共聚单体和聚醚类共聚单体。该缓释型木质素基聚羧酸减水剂性能稳定，可与其他复配组分组合相容性较好，满足施工混凝土保坍性能的要求，解决了聚羧酸减水剂在实际应用过程中出现的保坍效果差、泌水、离析、扒底现象等难题。再者本发明的制备方法，生产工艺简单易于操作，而且反应温度要求不高，从而降低了生产成本低且环保。本发明的原材料易得、制备工艺简单、环保安全、易于大批量生产、缓释效果较好等优点，应用前景广阔。
Slow-release lignin-based polycarboxylic acid high-performance water reducing agent and preparation method thereof
一种缓释型木质素基聚羧酸高性能减水剂及其制备方法
LU ZHIMING (author) / ZHONG YILIN (author) / FU HUILING (author) / ZENG SHIJIAO (author) / DENG HUANYOU (author) / HUANG ZHENRONG (author)
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
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
/
C04B
Kalk
,
LIME
/
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
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