polyvinyl alcohol

1.polyvinyl alcohol use to make pva yarn
2.textile sizing agent
3.water-soluble film for packaging
4.as a film used in the w
PVA Product Characteristics and Instruction
PVA Product Characteristics and Instruction
1.Product Performance. PVA resin
PVOH
Polyvinyl nitrate (PVN): It is an ester of nitric acid and polyvinyl alcohol.
Polyvinyl acetals: Polyvinyl acetals are prepared by reacting aldehydes with polyvinyl alcohol. Polyvinyl butyral (PVB) and polyvinyl formal (PVF) are examples of this family of polymers. They are prepared from polyvinyl alcohol by reaction with butyraldehyde and formaldehyde, respectively. Preparation of polyvinyl butyral is the largest use for polyvinyl alcohol in the U.S. and Western Europe.
1.Polyvinyl alcohol is used as a emulsion polymerization aid, as protective colloid, to make polyvinyl acetate dispersions. This is the largest market application in China.
2.its major use is vinylon fiber production.[1]
Some other uses of polyvinyl alcohol include:
3.Paper adhesive with boric acid in spiral tube winding and solid board production
4.Thickener, modifier, in polyvinyl acetate glues
5.Textile sizing agent
6.paper coatings, release liner
7.As a water-soluble film useful for packaging.
8.Feminine hygiene and adult incontinence products as a biodegradable plastic backing sheet.
9.Carbon dioxide barrier in polyethylene terephthalate (PET) bottles
10.As a film used in the water transfer printing process
11.As a mold release because materials such as epoxy do not stick to it
12.Movie practical effect and children's play putty or slime when combined with borax
13.Used in eye drops and hard contact lens solution as a lubricant
14.PVA fiber, as reinforcement in concrete
15.As a surfactant for the formation of polymer encapsulated nanobeads
16.Used in protective chemical-resistant gloves
17.Used as a fixative for specimen collection, especially stool samples
18.When doped with iodine, PVA can be used to polarize light
19.As an embolization agent in medical procedures
20.Carotid phantoms for use as synthetic vessels in Doppler flow testing
21.As agent in artificial Tears for treatment of dry eye.
The North Korean-manufacture fiber Vinalon is produced from polyvinyl alcohol. Despite its inferior properties as a clothing fiber, it is produced for self-sufficiency reasons, because no oil is required to produce it.
Fishing
PVA is widely used in freshwater sport fishing. Small bags made from PVA are filled with dry or oil based bait and attached to the hook, or the baited hook is placed inside the bag and cast into the water. When the bag lands on the lake or river bottom it breaks down, leaving the hook bait surrounded by ground bait, pellets etc. This method helps attract fish to the hook bait.
Anglers also use string made of PVA for the purpose of making temporary attachments. For example, holding a length of line in a coil, that might otherwise tangle while the cast is made.
Product Name
Alcoholysis degree(mol/mol)
Viscosity(mPa.s)
sodium acetate(≤)
Volatile constituen(≤)
Ash content(≤)
PH value
HWE1799
≥99.8
20.0-32.0
7.0
8.0
3.0
7-10
HWE2499
≥99.8
55.0-65.0
7.0
8.0
3.0
7-10
HWE2099
≥99.8
32.0-42.0
7.0
8.0
3.0
7-10
HWE0588
86.0-90.0
4.0-6.0
1.5
4
0.5
5-7
HWE1788
86.0-90.0
20.0-26.0
1.5
4
0.5
5-7
HWE1799
98.0-100
21.0-31.0
1.5
4
0.7
5-7
HWE2088
86.0-90.0
27.0-34.0
1.5
4
0.5
5-7
HWE2099
98.0-100
35.0-44.0
1.5
4
0.7
5-7
HWE2488
86.0-90.0
44.0-50.0
1.5
4
0.5
5-7
HWE2497
96.0-98.0
52.0-60.0
1.5
4
0.7
5-7
HWE2499
98.0-100
55.0-64.0
1.5
4
0.7
5-7
HWE2688
86.0-90.0
50.0-58.0
1.5
4
0.5
5-7
HWE2699
98.0-100
64.0-70.0
1.5
4
0.7
5-7