High Performance PVA For Suspension Polymerization Of PVC
Discription:
Cold-water instant polyvinyl alcohol powder and redispersible polymer powder have certain water retention, but cold-soluble polyvinyl alcohol powder has good water retention and can achieve the performance of methyl cellulose, and redispersible polymer powder must be combined with Use with methyl cellulose. The market price of cold water instant polyvinyl alcohol powder is lower than that of redispersible polymer powder, and its addition amount is also much lower than that of redispersible polymer powder. Therefore, for manufacturers, the cost will be greatly reduced. When the cold-soluble polyvinyl alcohol powder reaches the tensile bond strength greater than 0.1MPa, the dosage is only 0.5% (total solid), which is smaller than the redispersible latex powder, and methyl cellulose can be used, and the unit can improve the bond. The sag resistance of mortar can be thickened by adding a small amount of methyl cellulose.
Polyvinyl alcohol is an organic compound with the chemical formula [C2H4O]n, which is white flake, flocculent or powdery solid in appearance and tasteless. Soluble in water (above 95℃), slightly soluble in dimethyl sulfoxide, insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethyl acetate Diols etc. Polyvinyl alcohol is an important chemical raw material used in the manufacture of polyvinyl acetal, gasoline-resistant pipes and vinylon, fabric treatments, emulsifiers, paper coatings, adhesives, glues, etc.
Usage:
Polyvinyl Alcohol 1788 has good chemical stability, good insulation and film-forming properties. With the typical chemical properties of polyols, it can carry out reactions such as esterification, etherification and acetalization. In addition, it also has the following performance:
(1) Water-soluble
Storage stability of polyvinyl alcohol 1788 aqueous solution The polyvinyl alcohol aqueous solution has little chemical change when stored for a long time. At room temperature, the viscosity will gradually increase with the extension of the standing time; it will turn into a gel at low temperature, and it will turn into a solution after heating and stirring. If it is placed for a long time, rust inhibitor, preservative, anti-gelling agent and viscosity stabilizer can be added to the solution. However, attention should be paid to the influence of additives on product quality and performance during use.
(2) Film-forming properties
PVA1788 is easy to form film, and its film has excellent mechanical properties. The tensile strength of the film increases with the increase of polymerization degree and alcoholysis degree.
(3) Adhesion
The aqueous solution of polyvinyl alcohol 1788 has good bonding force with hydrophilic cellulose, and the bonding strength increases with the increase of alcoholysis degree and polymerization degree.
(4) Chemical properties of the interface
Polyvinyl alcohol 088-20 (1788) is surface active and reduces the surface tension of water.
(5) Solvent resistance
Polyvinyl Alcohol 088-20 (1788) can be dissolved in polar solution containing hydroxyl group, but it is easy to transform into gel, generally insoluble in non-polar organic solution, and insoluble in inorganic ACID, water is a good solvent.
(6) Thermal stability
Polyvinyl alcohol 088-20 (1788) has good thermal stability and does not change at temperatures below 140 degrees.
Specification:
| Items | Degree of alcoholysis (Mol)% | viscosity (mPa.s) | Volatile content % ≤ | ash content % ≤ | pH | Purity % ≥ |
| 100-27S | 99.5～100.0 | 23.0～29.0 | 6.0 | 0.8 | - | 92.0 |
| 100-40 | 99.5～100.0 | 35.0～45.0 | 6.0 | 0.8 | - | 92.0 |
| 100-78 | 99.5～100.0 | 73.0～83.0 | 6.0 | 0.8 | - | 92.0 |
| 098-03 | 98.0～98.8 | 3.2～4.0 | 5.0 | 0.7 | 5.0～7.0 | 94.0 |
| 098-04 | 98.0～98.8 | 4.0～5.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 098-10 | 98.0～98.8 | 8.0～12.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 098-15 | 98.0～98.8 | 13.0～17.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 098-20 | 98.0～98.8 | 18.0～22.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 098-27 | 98.0～98.8 | 23.0～29.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 098-30 | 98.0～98.8 | 28.0～32.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 097-29 | 96.0～98.0 | 27.0～31.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 097-60 | 96.0～98.0 | 56.0～66.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 092-53 | 91.0～93.0 | 48.0～58.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-03 | 86.5～88.5 | 3.0～4.0 | 5.0 | 0.7 | 5.0～7.0 | 94.0 |
| 088-05 | 86.5～88.5 | 4.5～6.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-08 | 86.5～88.5 | 8.0～10.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-13 | 86.5～88.5 | 12.0～14.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-20 | 86.5～88.5 | 21.0～24.5 | 5.0 | 0.4 | 5.0～7.0 | 94.0 |
| 088-26 | 86.5～88.5 | 24.0～28.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-35 | 86.5～88.5 | 29.0～34.0 | 5.0 | 0.3 | 5.0～7.0 | 94.0 |
| 088-40 | 86.5～88.5 | 38.0～42.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-50 | 86.5～88.5 | 45.0～55.0 | 5.0 | 0.3 | 5.0～7.0 | 94.0 |
| 080-44 | 78.0～82.0 | 42.0～52.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 088-60 | 86.5～88.5 | 56.0～66.0 | 5.0 | 0.5 | 5.0～7.0 | 94.0 |
| 086-03 | 85.0～87.0 | 3.4～4.2 | 5.0 | 0.4 | 5～7 | 93.5 |
| 098-05 | 98.0～99.0 | 5.0～6.5 | 5.0 | 0.5 | 5～7 | 93.5 |
| 098-08 | 98.0～99.0 | 9.0～11.0 | 5.0 | 0.5 | 5～7 | 93.5 |
| 092-20 | 91.0～93.0 | 21.0～27.0 | 5.0 | 0.5 | 5～7 | 93.5 |
| 094-27 | 94.0～96.0 | 22.0～28.0 | 5.0 | 0.5 | 5～7 | 93.5 |
| 096-27 | 96.0～98.0 | 23.0～29.0 | 5.0 | 0.5 | 5～7 | 93.5 |
| 100-27 | 99.0～100.0 | 22.0～28.0 | 5.0 | 0.7 | / | 93.5 |
| 092-35 | 91.0～93.0 | 30.0～36.0 | 5.0 | 0.3 | 5～7 | 93.5 |
| 100-35 | 99.0～100.0 | 35.0～43.0 | 5.0 | 0.7 | 5～7 | 93.5 |
| 098-60 | 98.0～99.0 | 58.0～68.0 | 5.0 | 0.5 | 5～7 | 93.5 |
| 100-60 | 99.0～100.0 | 58.0～68.0 | 5.0 | 0.7 | 5～7 | 93.5 |
| 100-70 | 99.0～100.0 | 68.0～78.0 | 5.0 | 0.7 | 5～7 | 93.5 |
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 CHUANWEI PVA 088-20,088-50,,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.
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