Plastic membrane
1,Index:
Item |
Index |
HS-BMI |
HS-BMⅢ |
Superior quality |
Appearance |
White powder |
Alcoholysis degree %(mol/mol) |
87.0~89.0 |
98.0~99.5 |
Viscosity mpa•s |
21.0~26.0 |
9.0~11.0 |
Sodium acetate % < |
0.5 |
0.5 |
Fugitive constituent % ≤ |
5 |
5 |
Ash content % < |
0.4 |
0.5 |
PH value |
5.0~7.0 |
Granularity |
40 mesh |
2, Manufacturing method: It is water-solubility macromolecular polymer manufactured by special polymerization, modification and all sors of treatment with its raw material is vinyl acetate. 3,Properties: Water-soluble: soluble in water with transparent water solution. Nontoxic and harmless, safe and environmental. Chemical resistance: at usual temperature, the PH value of its water solution is about 5-7 with steady viscosity. It will not be impacted by weak acid, weak alkali and organic solvent (ester, ketone, higher alcohols and hydrocarbon) with high oil-resistance. Compatibility: it is dissolving in starch, synthetic resin, cellulose derivative and all sorts of surfactant. 4,Use: It is mainly used for the raw material of membrane manufactured by casting method or blow moulding 5,Using method Dissolving method of solution 1, Weight: product and water are weighed according to polymerization formulation and solution concentration 2, Put the weighted cool water with the temperature lower than 30℃ into the dissolving tank and start to stir it 3, Put it into dissolving tank slowly in case of caking. 4, Stirring it to make it fully swelling. 5, Heat it gradually and make the temperature to 75-85°C in 30 minutes (Notice: do not heat it quickly and the temperature should not be so high.), and then keep stirring for 60 minutes to make BM fully dissolved. 6. Cooling: Reduce the temperature of the solution by stirring to normal temperature, and then the transparent solution can be got. As solid material, it can be used mixing with other material |