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Contact information

  • Add:No. 56 Wanwei Road, Chaohu City, Anhui Province
  • Zip:238012
  • Tel:0551-82189209
  • E-mail:wwdwgzb@163.com

PVA

  • Introduction
  • Parameters

Introduction

Product Introduction

Anhui Wanwei updated high-tech material Industry Co. Ltd has the production capacity of 250,000 tons of polyvinyl alcohol . PVA is a kind of basic chemical with big potential. It can be widely used in many industries such as Chemicals, Textile, Plastic, Paper, Synthetic leather, Glue, Construction etc. It has wide development space due to its easy degradation and the excellent environmental characteristics.

Through continuous innovation and improvements, the company grasped many key technologies for the PVA resin production and can produce a wide range of resin products with different polymerization and alcoholysis degree. The process adopted PLC and DCS control system and the company also obtained certificates of ISO9001, ISO14001.

As the wholly owned subsidiary of Wanwei Group, Guangxi Guangwei Chemical Co. , Ltd initiates the new PVA production route exclude from 'calcium carbide and acetylene ' and 'petroleum, natural gas and Ethylene' way, adhere to the low carbon economic development and utilization of resources of rich sugar cane in guangxi .

The holding subsidiary Mengwei Science and technology co., ltd which uses of the rich resource of coal ,electricity and calcium carbide in Inner Mongolia as well as the full set of production technology of Wanwei is staging an annual output 200,000 tons of vinyl acetate and 100,000 tons of polyvinyl alcohol production plant.The annual output of PVA is 250,000 tons, accounting for more than 20 percent of national output. The production capacity for a single product also occupies a leading position in the world.
With large output, variety, quality and stability and other advantages, Wanwei can produce PVA17-99, PVA26-99, PVA04-99, PVA05-99, PVA17-88, PVA05-88 models of PVA products.
Abbreviation: PVA
二、the molecular composition and structure:
( CH3CHCOOCH3x ( CH2CHOH )y
in which: x + y indicates the degree of polymerization, y / (x + y) that alcoholysis degree
三、The physical and chemical properties
1、The physical property
A、Solubility:
The Polyvinyl alcohol powder can be dissolved in water. PVA with Less than 95%alcoholysis degree can be dissolved in water at room temperature and PVA with more than 99.5% alcoholysis degree can only be dissolved in hot water above 95℃.
B、Thermal Stability:
The heat can make PVA soften and there is no significant change below 40℃ but 160 ℃ or more, for a long time heated ,it will gradually be colored .when 220℃ above it is decomposed to produce water, acetic acid, acetaldehyde and propylene aldehyde.
C、Chemical Resistance:
PVA is almost free from weak acid, weak base, or the impact of organic solvents, oil is very high.
D、Storage Stability:
PVA is a low viscosity of the polymer, the solution is stable at room temperature. Aqueous solution in the storage process is not degenerate.
E、Film:
As the high adhesion between PVA molecular, PVA is easy to form a colorless, transparent film with good mechanical strength, smooth surface without tacky, and good solvent resistance. Monolayer has excellent light-admitting quality , high permeability rate, no charged, no absorption and good printing character .
2、The Chemical Property
PVA can be seen as a linear polymer with a hydroxyl polymer. Hydroxyl of molecules which has high activity can be a typical chemical reaction of low-alcohol, such as esterification, etherification, acetal, etc and can also react with a number of inorganic compounds or organic compounds.
四、Package, Transport and Storage: Appearance:Floc , Flake, Powder.
A、12.5 kg, 20 kg, 25 kg plastic woven bag or paper bag, 750Kg ~ 1000Kg woven tons of bags.
B、Transport using a clean conveyance to prevent moisture, rain and sun and moving gently to prevent the packaging scratch or smashes.
C、Stored in a dry, well-ventilated room at room temperature 5-30℃. Do not close to the heat, prevent moisture and avoid sun exposure. Prohibit deposit with volatile chemicals to prevent deterioration absorption.
D、The products are non-dangerous, no explosions, no oxidation, no corrosion, non-radioactive, and non-toxic. The safety data sheets can be given according to the customer’s requirements.


International Business Department
Anhui Wanwei international trade Co., Ltd
TEL:+86-551-82189406 +86-551-82189832
FAX:+86-551-82317233 +86-551-82189233
E-mail:jckb2@126.com
In order to meet the demand of rapid development of Wanwei Group, Anhui Wanwei international trade company limited which is the wholly owned subsidiary of Anhui Wanwei updated high-tech material Industry company limited was established in August 1, 2010.
Anhui Wanwei international trade company has the self-supported import and export right. On the one hand it can import all kinds of chemical raw materials, such as VAM, PTA, ethylene glycol and other products for Wanwei Group. One the other it also can export polyvinyl alcohol, high strength and high modulus PVA fibers and Redispersible emulsion powder etc . And to meet the needs of domestic and foreign customers, Wanwei international trade company agents various types of goods import and export .
With professional and meticulous work, The company is dedicated to domestic and foreign customers to provide efficient quality services.


Market application

一、Name: Polyvinyl alcohol

Anhui Wanwei updated high-tech material Industry Co. Ltd





Products Specifications and Application
产品规格及用途

Specification

Application

Fiber Processing

Paper processing

Binders

Stabilizer

Molding materials&Other

staple yarns

fil
ament

post
proce
ssing

sur
face siz
ing

pig
ment bin
der

book paper bond

Re-
wet adhe
sive

ply
wood adhe
sive

Vinyl
Acetate emul
sion pol
ymer
iza
tion

suspen
sion pol
ymeri
zation of vinyl chl
oride

P
V
B

film
or
sponge, soil impro
vement

soil impr
ovement

ight-sens
itive glue

med
icine or cosm
etics

bui
lding mate
rials with addi
tives

0488L

0499L

0588L

0599L

0899L

1092L

1099L

1492L

1498L

1599L

1788L

1792L

1798L

1799L

1799FL

1799SL

2088L

2099L

2488L

2499L

2699L

3099L

1799H)

2099H)

2399H)


Notes:1. ◎: general use 2. ☆:Use under the situation 3. ●: powder more suitable


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