Water-soluble film
Product Features；
1) having a water solubility characteristics. Cold water soluble, water-soluble speed design choice;
2) The anti-static properties. During the packaging process will not reduce static electricity caused by plasticity and electrostatic dust attached properties;
3) water and gas permeability. Water-soluble film to water and ammonia through strong, but for oxygen, nitrogen, hydrogen and carbon dioxide and other gases have good barrier effect;
4) heat-sealing properties. Water-soluble packaging films with good heat sealing, suitable for high-frequency heat-sealing resistance and heat-sealing, heat sealing strength and the temperature and humidity, pressure, time and other conditions, generally greater than 200g / cm2
5) Mechanical Properties. Strong modulus 2500-400kg / cm2, the tensile strength of 400-200kg / cm2, tear 200-50kg / cm2, elongation of 150-220%
6) oil resistance and chemical resistance. Water-soluble packaging films with good oil resistance (vegetable oil, animal oil, mineral oil), fats, and carbohydrates resistant to organic solvents, but acids, alkalis, chlorine and other free radicals react with PVA, such as borax, boric acid and certain dyes, which does not recommend the use of water-soluble film.
Product Specifications: (PVA resin for reference)
|
No. |
Test items |
test result |
| 1 |
densityg/cm3 |
1.22 |
| 2 |
Melt Indexg/10min |
5.5 |
| 3 |
Melting point ℃ |
180 |
| 4 |
Vicat softening temperature (load: 5kg) ℃ |
48 |
| 5 |
Tensile strength MPa |
32 |
| 6 |
Elongation at break% |
96 |
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