19/07/2026
PVA (polyvinyl alcohol ) solubility experiment
1. Strong Adhesion
Abundant hydroxyl groups (-OH) in molecules form hydrogen bonds with cement, calcium powder, fiber, paper and cotton yarn. It firmly bonds inorganic and organic substrates, reducing hollowing, peeling and powder loss.
2. Film-forming Property (the most vital characteristic)
It forms continuous, flexible, transparent and wear-resistant films after drying. The film seals capillary pores, disperses stress, stops microcrack expansion, and delivers waterproof, scrub-resistant and anti-cracking performance.
3. Water Retention, Thickening & Lubrication
It locks moisture inside the system to slow excessive water loss and premature hardening of cement/gypsum. It thickens slurry for smooth construction without resistance during troweling or brushing, and works synergistically with HPMC and HEC for better water retention and thickening effects.
4. Emulsification & Dispersion Stabilization
As a protective colloid, it stabilizes emulsions and pigments to avoid precipitation and delamination, an essential additive for water-based coatings and white latex.
II. Construction Industry (Putty, Mortar, Cement, Gypsum — Your Main Product Line)
1. Interior & Exterior Wall Putty, Polishing Putty
- Improve the cohesive strength of putty to prevent peeling and marks during sanding for smooth and bright wall surfaces;
- Form a sealing film to block wall pores, resist alkali efflorescence and water scrubbing;
- Buffer stress flexibly to avoid microcracks under thin coating or temperature difference;
- Optimize construction smoothness and troweling efficiency.
2. Tile Adhesive, Plastering Mortar, Thermal Insulation Mortar, Interface Primer
- Greatly boost adhesion between mortar, wall base and tiles to lower hollowing and tile falling risks;
- Retain water for full cement hydration and enhance early strength;
- Form flexible films to offset shrinkage cracks of base layers and raise flexural & impact resistance;
- Combined with HPMC for doubled performance on water retention, viscosity improvement and crack resistance.
3. Construction Glue (108 / 801 Glue & Dry Glue Powder)
PVA serves as the core raw material of formaldehyde-free construction glue, used for interior wall priming and base treatment.
IV. Paper Industry (Paper Tube, Coated Paper, Surface Sizing)
1. Form surface film on paper to boost folding endurance, wear resistance, anti-powder-falling property and ink pe*******on resistance;
2. Improve paper gloss and smoothness for clearer printing effect;
3. Act as high-strength and fast-drying adhesive for paper tubes and cartons.
V. Water-based Coatings & Adhesives
1. Latex paint & industrial waterborne paint: film-forming additive to enhance film adhesion and scrub resistance;
2. White latex & wood glue: core raw material for bonding wood, paper and leather;
3. Stabilize pigment emulsions to prevent pigment sedimentation and layering.
