What is polycarboxlate plasticizer?
polycarboxlate plasticizer is a polymer material additive widely used in industrial production, also known as polycarboxlate plasticizer. Any substance added to polymer materials that can increase the plasticity of the polymer is called a polycarboxlate plasticizer. The use of polycarboxlate plasticizers can improve the performance of polymer materials, reduce production costs, and improve production efficiency. polycarboxlate plasticizer is an important type of chemical product additive.
Application of polycarboxlate plasticizer
As an auxiliary, it is widely used in plastic products, concrete, plaster, cement, gypsum, cosmetics and cleaning agents, especially in polyvinyl chloride plastic products. In order to increase the The plasticity of plastics and improving the strength of plastics require the addition of phthalates, whose content can sometimes reach 50% of the product.
The role of polycarboxlate plasticizer
The main function of polycarboxlate plasticizer is to weaken the secondary valence bonds between resin molecules, increase the mobility of resin molecular bonds, reduce the crystallinity of resin molecules, increase the plasticity of resin molecules, make them more flexible, easy to process, and can be used legally Industrial use, widely found in food packaging, cosmetics, medical equipment, and environmental water bodies. Such as plastic wrap, food packaging, toys, etc.
polycarboxlate plasticizer is a processing modification aid
polycarboxlate plasticizer is a processing modification aid. On the one hand, it can improve the toughness of the product matrix material, increase the elongation at break of the product, and make the product softer during processing, such as reducing the brittleness of the film and reducing the death of the film product. Pleats prevent the generation of waste products; on the other hand, it can greatly improve the processability of plastics, which is of great significance for the industrial production of some particularly difficult-to-process plastic varieties such as PVC (40% polycarboxlate plasticizer is added for industrial processing of PVC).
The main components of mortar polycarboxlate plasticizer are as follows:
- Polycarboxylic acid series: Polycarboxylic acid series is currently commonly used mortar polycarboxlate plasticizer, such as polycarboxylate ether (Poly carboxylate Ether, PCE). These compounds are composed of polymer chains and carboxylic acid groups, which can form physical adsorption with the surface of cement particles and improve the dispersion and wettability between cement particles.
- Sugars: Some mortar polycarboxlate plasticizers may contain sugars and their derivatives, such as sucrose, glucose, etc. Sugar can provide a certain viscosity and plasticity to the mortar, improving fluidity and processing performance.
- Retarder: In order to prolong the setting time of mortar and enhance plasticity, some mortar polycarboxlate plasticizers may add retarder, such as glycolic acid ester (HydroxyethylA crylate).
- Dispersant: In order to improve the dispersion and suspension stability of the powder particles in the mortar, some dispersants, such as polysulfonates, may be added to the mortar polycarboxlate plasticizer.
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