PVA has strong adhesion to cellulose, good film formation, and high film strength. PVA is mainly used as paper surface sizing agent, pigment binder and beating machine additive in the papermaking industry. It can improve the abrasion resistance, folding resistance and tear resistance of paper, and improve gloss, smoothness and printing adaptability.
Water-based product, good initial adhesion, fast drying, high strength, good fluidity and storage stability, bonding without warpage, suitable for all kinds of paper edge protector production lines. The shelf life is more than 4 months.
|Test Items||Requirement||Test Result||Item Conclusion||Remarks|
No big granule and unrelated things
|Conforming to requirement||Qualified||No|
|3||Content of fixed things, %||≥29.0||35.1||Qualified||No|
|5||Ash content, %||≤3.0||0.8||Qualified||No|
|6||Lowest temperature of becoming membrane, °C||≤8||-1||Qualified||No|
|7||Lumber pollution||Shallower color comparing with ferrous sulfate||Conforming to requirement||Qualified||No|
|8||Compression and shearing strength, M Pa||Drying strength||≥4.5||6.0||Qualified||No|
|9||Drafting Formaldehyde, g/kg||≤1||Not tested||Qualified||No|
|10||Volatile organic matter, g/l||≤56||31||Qualified||No|
|11||Benzene, g/kg||≤0.2||Not tested||Qualified||No|
|12||Toluene+Xylene, g/kg||≤10||Not tested||Qualified||No|