High Strength High Modulus PVA Fiber

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High Strength and High Modulus PVA Fiber

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High Strength and High Modulus PVA Fiber

Item	Unit	Type 1	Type 2
Count	Dtex	2.0±0.25	2.0±0.25
Tenacity	CN/dtex	11.5 min	12.8 min
Elongation	%	7.5 max	7 max
Modulus (0.1-0.4%)	CN /dtex	280±20 min	290 min
Hot water solubility (90℃,1hr)	%	2 max	2 max
Density	g/cm3	1.29	1.29
Cut Length	mm	5, 6	5, 6

Packing	Packed in 180 woven P. P. Bag, 12.96MT / 20’FCL without pallets.
Storage	20°C 2 years
Shipping	Room temperature 5-30℃ in China; may vary elsewhere

Liwei PVA is one of the top 10 PVA factories and the top 100 strongest enterprises in anhui province.In 2010,Liwei PVA is evaluated as advanced and high technical company. We mainly deals in polyvinyl alcohol,PVA,PVA fiber and raw materials for producing PVA like vinyl acetate,calcium carbide.

For samples, pricing, or more information, please call us at 0086-25-52397803 or mail to info@china-pva.net or fill out the following form. We will respond to you as soon as possible.

Tel: 0086-25-52397803

E-mail: info@china-pva.net

Common Names	Polyvinyl Alcohol fiber
Structure	(C2H4O)n
CAS No.	9002-89-5	Boiling Point(℃)	No data available
Molecular Weight	44.0526	Melting Point(℃)	200 °C
Appearance	White crystalline	Vapor Specific Gravity	No data available
HS Code	390530	Flash Point(℃)	No data available
Solubility	Polyvinyl alcohol fiber can be blended with other fibers, and then dissolved after textile processing, to obtain fine yarn high-grade textile	Autoignition Temperature(℃)	No data available

	SYMPTOMS	PREVENTION	FIRST AID
Safety Phrases	None
RIDADR	None
WGK Germany	None
Packaging Group	None
Hazard Class	None

Inhalation	None	None	None
Skin	None	None	None
Eyes	None	None	None
Ingestion	None	None	None

The average molecular weight of PVA fiber is 60000 ~ 150000, the thermal decomposition temperature is 200 ~ 220℃, the melting point is 225 ~ 230℃. Polyvinyl alcohol fiber can be prepared by wet spinning and dry spinning. Polyvinyl formaldehyde fiber can be obtained by acetalizing the heat treated polyvinyl alcohol fiber. The acetalization process is to wash the silk bundle to remove mirsolvite (sodium sulfate), from the aldehyde solution (composed of aldehyde agent formaldehyde, diluent water, catalyst sulfuric acid, swelling inhibitor sodium sulfate) through the process of washing. The strands can also be cut into short fibers, transported to the aftertreatment machine by air flow, in stainless steel net for acetalization. In order to improve the performance of the fiber, the polyvinyl alcohol solution containing the crosslinking agent boric acid (the concentration is 16%) can be wet-spun. The resulting primary fiber is solidified in the alkaline solidification bath. After neutralization, water washing, multi-stage high tensile and heat treatment, the filament with the strength of 106 ~ 115cN/dtex can be obtained. This product is called boron-containing wet filament.

Features:

PVA high strength and high modulus fiber takes polyvinyl alcohol as its major raw materials. It has good prosperities such as high modulus, high strength, alkali and acid resistance, heat resistance, anti-crack, anti-infiltration and so on. High strength and high modulus PVA fiber also has good compatibility with cement and other macromolecule material and can prevent the microcrack caused by plastic shrinkage of the concrete.
PVA Properties
Polyvinyl Alcohol Poval is high polymer with excellent characters to dissolve easily in water but not to dissolve in common organic solvent and organic acids, and with excellent film-forming property,oil resistant, chemical-resistant. It can react with formaldehydes to form polyvinyl acetal.

Application and Uses:

1) High strength and high modulus PVA fiber is the good substitution of Asbestos and glass fiber. 2) It is widely used in building materials, such as cement board, non asbestos material for heat and attrition resistance, plastic and rubber reinforcement. 3) It is a good reinforcing material for upholstery and package. 4) It can also be used in making high strength fishing meshes, cables, safety nets. 5) With excellent ability of anti-alkali, High strength & modulus PVA fiber is suitable for any type of the cement.

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