A kind of machine-made sand conditioner of alcohol ether-modified carboxylic acid polymer and preparation method thereof

Abstract

The present invention provides a mechanism of methalis etfic acid polymers and its preparation methods. First, add 75‑91 copies of carboxylic acid monomeric acid and 33‑67 parts to the reaction kettle equipped with a mixerAlcohol ether monomer, 2份4 parts chain transfer agent, 0.1‑0.3 parts of polymer and water; heated water bath to 80‑90 ° C; then 150‑175 parts carboxylic acid monomer, 0.1‑0.3 part of the barrier cluster clustering cluster clusteringThe agent and 1787187 part of the water are made into A liquid, and 1.64‑3.21 part of the cause, 2‑8 chain transfer agent and water are made into B liquid.Among them, A liquid droplets plus 151.5 hours, and the B plus 1‑2 hours.After adding A and B, the insulation is 1-2 hours, and the hemo -cooler was cooled, and the water was replenished to 1,000 copies.The invention is introduced through the introduction of the polymer molecular chain through the introduction of the alcohol ether monologue, the length and softness of the polymer molecular chain, which improves the decentralized performance of the polymer, enables it to adapt to different levels of mechanism sand and improve the performance of mechanism sand.

Description

technical field [0001] The invention belongs to the technical field of engineering construction, in particular to a machine-made sand conditioner of an alcohol ether-modified carboxylic acid polymer and a preparation method thereof. Background technique [0002] At present, the demand for sand and gravel in the engineering and construction industry is relatively large. However, the natural sand resource is currently in short supply and the country is paying more and more attention to the protection of the ecological environment. The amount of natural sand is gradually reduced. inevitable trend of development. However, machine-made sand has disadvantages such as sharp edges and corners, rough surface and poor gradation, which lead to poor workability of concrete mixed with machine-made sand. At present, few people can provide an effective solution. Therefore, the development of a new type of machine-made sand conditioner has become a research hotspot in the engineering and c...

AI Technical Summary

Problems solved by technology

However, machine-made sand has disadvantages such as sharp edges and corners, rough surface, and poor gradation, which lead to poor workability of concrete mixed with machine-made sand. At present, few people can give effective solutions.

Images