Solubility of HPMC in Organic Solvents
October 29th 2024
Vinyl Acetate Ethylene (EVA) copolymer, also known as Vinyl Acetate-Ethylene copolymer (VAEE) or sometimes referred to as Redispersible Polymer Powder (RDP), is a common additive used in drymix mortar. It offers several advantages that enhance the overall performance of the mortar.
Here’s a breakdown of how EVA copolymer functions in drymix mortar:
Enhanced Adhesion: One of the key benefits of EVA copolymer is improved adhesion. It acts as a binder, creating a stronger bond between the mortar and the substrate (the surface it’s applied to). This leads to a more durable and crack-resistant finished product.
Improved Flexibility: EVA copolymer can increase the flexibility of drymix mortar. This makes the mortar less susceptible to cracking caused by movement or vibration in the structure.
Water Retention: EVA copolymer helps the mortar retain water more effectively. This is particularly beneficial in hot or windy conditions where water evaporation can be a concern. Better water retention allows for proper hydration of the cement, leading to a stronger final product.
Workability: The presence of EVA copolymer can improve the workability of drymix mortar. It makes the mortar smoother and easier to trowel or apply, reducing the effort required during installation.
Other Advantages: EVA copolymer can also offer additional benefits depending on the specific formulation. These may include improved freeze-thaw resistance, reduced shrinkage, and better impact resistance.
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