Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polycarboxylic acid water reducing agent suitable for machine-made sand and preparation method of water reducing agent
The invention relates to a polycarboxylic acid water reducing agent suitable for machine-made sand and a preparation method of water reducing agent. The polycarboxylic acid water reducing agent is synthesized by adopting an aqueous solution free radical polymerization method according to the following proportion by mass: 200 parts of polyether macromonomer; 15.0 to 30.0 parts of acrylic acid; 5.0 to 12.0 parts of DNS-86; 300 parts of distilled water in total ; and an initiator including 18 to 35 parts of hydrogen peroxide and 6.0 to 12.0 parts of Vc by mass. The reaction temperature is controlled to be 10-35 DEG C. The water-reducing agent has the characteristics of high wettability, small slump loss, high water-reducing rate and early strength, and has the advantages of easily available preparation raw materials, low cost, large-scale production and the like.
一种适应于机制砂的聚羧酸减水剂及其制备方法，采用水溶液自由基聚合的方法，按以下配比进行合成：聚醚大单体，质量份为200份；丙烯酸，质量份为15.0～30.0份；DNS‑86，质量份为5.0～12.0份；蒸馏水：质量份总合为300份；引发剂：双氧水质量份为18～35份，Vc质量份为6.0～12.0份。反应温度控制在：10～35℃。本发明具有润湿性好，坍落度损失小、减水率高并有早强的特点，同时制备原料易得、成本低、可规模化生产等优点。
Polycarboxylic acid water reducing agent suitable for machine-made sand and preparation method of water reducing agent
The invention relates to a polycarboxylic acid water reducing agent suitable for machine-made sand and a preparation method of water reducing agent. The polycarboxylic acid water reducing agent is synthesized by adopting an aqueous solution free radical polymerization method according to the following proportion by mass: 200 parts of polyether macromonomer; 15.0 to 30.0 parts of acrylic acid; 5.0 to 12.0 parts of DNS-86; 300 parts of distilled water in total ; and an initiator including 18 to 35 parts of hydrogen peroxide and 6.0 to 12.0 parts of Vc by mass. The reaction temperature is controlled to be 10-35 DEG C. The water-reducing agent has the characteristics of high wettability, small slump loss, high water-reducing rate and early strength, and has the advantages of easily available preparation raw materials, low cost, large-scale production and the like.
一种适应于机制砂的聚羧酸减水剂及其制备方法，采用水溶液自由基聚合的方法，按以下配比进行合成：聚醚大单体，质量份为200份；丙烯酸，质量份为15.0～30.0份；DNS‑86，质量份为5.0～12.0份；蒸馏水：质量份总合为300份；引发剂：双氧水质量份为18～35份，Vc质量份为6.0～12.0份。反应温度控制在：10～35℃。本发明具有润湿性好，坍落度损失小、减水率高并有早强的特点，同时制备原料易得、成本低、可规模化生产等优点。
Polycarboxylic acid water reducing agent suitable for machine-made sand and preparation method of water reducing agent
一种适应于机制砂的聚羧酸减水剂及其制备方法
CUI HONGYUE (Autor:in) / ZHANG GUANGHUA (Autor:in) / ZHANG WANBIN (Autor:in)
22.10.2021
Patent
Elektronische Ressource
Chinesisch
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