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Sell PVA 1788 PVA 1799 PVA 2488 PVA 2499 white powder

Sell PVA 1788 PVA 1799 PVA 2488 PVA 2499 white powder

( Negotiable )

|

Minimum Order

Place of Origin:

Hebei China

Price for Minimum Order:

-

Minimum Order Quantity:

10 Ton

Packaging Detail:

-

Delivery Time:

15 days after confirmation of order

Supplying Ability:

-

Payment Type:

T/T, L/C

الاتصال الآن
عضو مجاني

الشخص الذي يمكن الاتصال به carl-cn.admin.070911

XINCHENG BUILDING, YOUYI STREET, XINHUA DISTRICT, Shijiazhuang, Hebei

الاتصال الآن

Description

Specifications

PVA ***9, lyvinyl alcohol (PVOH, PVA, or PVAL) is a water-soluble synthetic polymer (not to be confused with polyvinyl aceta

PVA ***9 product Feature
Polyvinyl alcohol has excellent film forming, emulsifying, and adhesive properties. It is also resistant to oil, grease and solvent. It is odorless and nontoxic. It has high tensile strength and flexibility, as well as high oxygen and aroma barrier properties. However these properties are dependent on humidity, in other words, with higher humidity more water is absorbed. The water, which acts as a plasticiser, will then reduce its tensile strength, but increase its elongation and tear strength. PVA is fully degradable and is a quick dissolver. PVA has a melting point of **0C and ******0C for the fully hydrolysed and partially hydrolysed grades, respectively. It decomposes rapidly above **0C as it can undergo pyrolysis at high temperatures.

PVA is an atactic material but exhibits crystallinity as the hydroxyl groups are small enough to fit into the lattice without disrupting it.

Application
Preparation of polyvinyl butyral is the largest use for polyvinyl alcohol in the U. S. And western Europe. Its use as a polymerization aid is the largest market in China. In Japan the major use is vinylon fiber production.

Product Name: Polyvinyl Alcohol
Index Name Index
PVA ****9 PVA ****8
Hydrolysis ( mol %) *9.9 *8.7
Sodium Acetate(%) 2.3 1.1
Volatiles (%) 2.9 3.6
Viscosity (mpa.s) *6.5 *5.0
NaOH (%) 0.*5 0.*0
Purity (wt %) *4.8 *5.3
Surface White White
Remarks QUALIFIED

 

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carl-cn.admin.070911 < Hebei Natural Chemical Co., Ltd >

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