SINOPEC CHUANWEI SUNDY PVA 2488 With Anti-foam Agent For Space Mud
Foaming mechanism: PVA powder is a porous material, and air, methanol and ester volatiles are adsorbed in the voids. And the partial alcoholysis type PVA, after contacting with water, the hydrophilic low molecular substances (alcohols, esters) will suck the water into the space and expel the air, which is the main source of gas to form foam, and in the case of stirring It is easy to cause foam. Due to the high viscosity of the PVA aqueous solution, the liquid film has a certain mechanical strength, so that the foam is not easy to disappear.
Discription:
Polyvinyl Alcohol 2488 is a white or slightly yellow powdery water-soluble polymer. Has good film-forming properties, formingThe film has good adhesion, solvent resistance, abrasion resistance, tensile strength and oxygen barrier properties. also hydrophilic.
There are two functional groups: base and hydrophobic group, so polyvinyl alcohol has the properties of interfacial activity, and can also be used as polymer emulsification, suspension
Protective colloid for float polymerization. Low dissolution temperature, strong freezing resistance, no gel phenomenon; good solution fluidity and stable viscosity; good hygroscopicity, Strong re-viscosity; contains more hydrophobic groups, good affinity and adhesion to hydrophobic materials.
Specification:
| Items | Specification |
| Hydrolysis degree | 87.0%- 89.0% |
| Purity | ≥93.5% |
| Viscosity | 45.0-58.0mpa.s |
| Volatile | ≤5.0% |
| PH | 5~7 |
| Ash | ≤0.5% |
Packing:
paper-plastic composite bag, with plastic film inner bag, net weight of each bag is 20kg&25kg.
Application:
Mainly used in textile pulp, paper binder, rewetting binder, surface sizing agent for paper, pigment carrier, Adhesives for architectural coatings, adhesives and additives for building materials, coating agents for seeds and pharmaceuticals, adhesives for inorganic and electronic products, Water-soluble film, cosmetic additive, stabilizer for vinyl acetate emulsion polymerization and vinyl chloride suspension polymerization, temporary protective film etc.
Except SUNDY PVA NJ-II 088-50 2488,We can also supply Titanium Dioxide Rutile,Titanium Dioxide Anatase,Iron Oxide Pigments,Carbon Black N330,Sodium Tripolyphosphate 94%, Sodium Hexametaphosphate 68%,Pvc Resin, PVC Paste Resin,Bottle Grade Pet Resin,Chrome Oxide Green etc.
Product Categories : Resin > PVA Resin
