China Cheap price PVA – Polyvinyl alcohol powder/tablets(PVA) – Divenland
China Cheap price PVA – Polyvinyl alcohol powder/tablets(PVA) – Divenland Detail:
Properties and applications of pva-2088
1. Features
(1) Solubility: it has strong hydrophilicity and is easy to dissolve in water (it can be dissolved slowly at room temperature, and generally used in hot water above 85 ℃), but insoluble in almost all organic solvents. PVA-2088 will produce foam in the course of dissolving. It can be solved by adding defoamer.
(2) Film forming property: easy to form film and excellent mechanical properties. Except for H2O, PVA film has excellent resistance to H2, N2, O2 and other gases.
(3) Adhesion: not only with hydrophilic fiber, paper and so on, but also with hydrophobic fiber has good adhesion.
(4) Thermal stability: when the sheet is heated above 130 ℃, the appearance changes gradually. The partially alcoholysis PVA began to melt at 180-190 ℃ and decomposed at 200 ℃.
(5) Solvent resistance: PVA has strong resistance to weak acid and alkali, and good oil resistance.
2. Main application
(1) Fiber processing industry: staple yarn, long yarn and after processing and other fields.
(2) Film processing industry: using different processes to produce water-soluble films and other fields.
(3) Coating mold industry: base cloth shaping and strengthening and other fields.
(4) Paper processing industry: indicate sizing and other fields.
(5) Adhesive industry: re wet bonding and other fields.
(6) stabilizer industry: vinyl acetate emulsion polymerization and other fields.
(7) Others: cosmetics, pharmaceutical products, additives for building materials, temporary protective film and other fields.
3. Product index
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PVA 20-88 Product |
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Product number |
International standard |
Grade |
Viscosity（mPa.s） |
Alcoholysis degree（mole%） |
Volatile matter（%≤) |
ash content（≤%) |
PH |
pureness（%） |
|
20-88 |
088-35 |
Premium grade |
32.0-44.0 |
87.0-89.0 |
5 |
0.3 |
5-7 |
93.5 |
|
Qualified grade |
32.0-44.0 |
86.0-90.0 |
7 |
0.5 |
5-7 |
91.5 |
||
Product detail pictures:
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Cooperation
We're going to commit ourselves to giving our esteemed customers along with the most enthusiastically considerate providers for China Cheap price PVA – Polyvinyl alcohol powder/tablets(PVA) – Divenland , The product will supply to all over the world, such as: Southampton, Germany, Sri Lanka, Since the establishment of our company, we've realized the importance of providing good quality goods and the best before-sales and after-sales services. Most problems between global suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question points they do not understand. We break down these barriers to ensure you get what you want to the level you expect, when you want it.
By Amy from Egypt - 2018.09.21 11:01
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Marguerite from Iran - 2017.11.29 11:09
