PVA 1788/ PVA 2488/ PVA 2688/ Polyvinyl Alcohol CAS 9002-89-5

Details:

PVA 1788/ PVA 2488/ PVA 2688/ Polyvinyl Alcohol CAS 9002-89-5

 

Description:

• Chemical Formula: (C2H4O)n, where n represents the average number of repeating vinyl alcohol units in the polymer chain.
• Molecular Weight: The molecular weight of Polyvinyl Alcohol can vary depending on the degree of polymerization, which determines the length of the polymer chains.
• Structure: Polyvinyl Alcohol is a white to off-white, odorless, and tasteless solid. It is water-soluble and can form viscous solutions when dissolved in water.

Specification:

• Degree of Polymerization: Polyvinyl Alcohol is available in different grades with varying degrees of polymerization, which determines the average length of the polymer chains. The degree of polymerization influences the physical properties of PVA, such as its viscosity and mechanical strength.
• Hydrolysis Degree: PVA is classified based on its degree of hydrolysis, which refers to the extent of vinyl acetate units that have been hydrolyzed to form vinyl alcohol units. The hydrolysis degree affects the water solubility, crystallinity, and other properties of PVA.

Application:

1. Adhesives and Binders: Polyvinyl Alcohol is widely used as an adhesive and binder in various industries. It is utilized in the production of paper and paperboard coatings, textile sizing, and as an ingredient in wood glue and other adhesives.

2. Packaging and Films: PVA is employed as a film-forming agent in the packaging industry. It can be used to create water-soluble packaging films that are biodegradable and environmentally friendly. PVA films are utilized for applications such as laundry detergent pods, agricultural films, and as a mold release agent in the production of composite materials.

3. Textiles and Fibers: PVA fibers are used in textile applications, either alone or in combination with other fibers. PVA fibers can improve the tear resistance, dyeability, and crease recovery properties of fabrics. PVA is also utilized as a sizing agent in the textile industry to improve the weaving process.

4. Paper and Coatings: Polyvinyl Alcohol is utilized in the paper industry as a surface sizing agent to improve the printability, ink absorption, and surface strength of paper. It is also used as a coating material for glossy and protective coatings on paper products.

Features:

• Water Solubility: Polyvinyl Alcohol is highly water-soluble, allowing it to form clear and viscous solutions when dissolved in water. The solubility can be adjusted based on the degree of hydrolysis and degree of polymerization of PVA.

• Film-Forming Properties: PVA has excellent film-forming properties, enabling the creation of thin, transparent, and flexible films. These films have good barrier properties and can be easily dissolved in water.

• Biodegradability: Polyvinyl Alcohol is considered biodegradable under appropriate conditions. It is derived from renewable resources and can be an environmentally friendly alternative to non-biodegradable polymers.

• Adhesion and Cohesion: PVA exhibits good adhesion and cohesion properties, making it suitable as an adhesive and binder in various applications.

• Chemical Resistance: PVA has good resistance to a wide range of chemicals, including acids, alkalis, and organic solvents.

• Low Toxicity: Polyvinyl Alcohol is generally considered to have low toxicity and is safe for many applications. However, specific grades and formulations should be evaluated for their intended use to ensure safety.

 

Description:
Polyvinyl Alcohol (PVA) is a linear polymer consisting of repeating vinyl alcohol units. It is commonly available in the form of white or pale yellow granules, flakes, or powder. PVA is produced by the hydrolysis of polyvinyl acetate, which results in the replacement of acetate groups with hydroxyl groups.

Specification:

• Chemical formula: (C2H4O)n
• CAS Number: 9002-89-5
• Molecular weight: Varies depending on the degree of polymerization
• Appearance: White or pale yellow granules, flakes, or powder
• Degree of Polymerization: Typically ranges from 500 to 3000
• Hydrolysis Degree: Typically ranges from 80% to 99+%

Application:

1. Adhesives: PVA 1788 is widely used as a binder and adhesive in various industries. It is often utilized in woodworking, paper bonding, packaging, and textile applications. PVA adhesives provide strong bonding properties, good flexibility, and resistance to moisture.

2. Films and Coatings: Due to its excellent film-forming properties, PVA 1788 is used to create thin films and coatings. These films find applications in packaging, food industry (as edible coatings), photoresist coatings, and water-soluble packaging materials.

3. Textiles and Fibers: PVA fibers are known for their high tensile strength, abrasion resistance, and excellent dye receptivity. They are used in textile applications such as woven labels, interlinings, and reinforcement fibers.

4. Paper Industry: PVA 1788 is utilized in the paper industry as a surface sizing agent to improve surface strength, printability, and ink absorption of the paper. It can also be used as a binder for paper coatings and as a component in deinking processes.

5. Personal Care Products: PVA is found in various personal care products, including shampoos, conditioners, hair sprays, and styling gels. It acts as a film-forming agent, providing hold, moisture retention, and gloss to hair.

Features:

1. Water Solubility: PVA 1788 is highly soluble in water, forming a clear, viscous solution. It exhibits excellent film-forming characteristics when the water is evaporated.

2. Film Strength and Flexibility: PVA films have good tensile strength and flexibility, making them suitable for applications that require durability and resistance to deformation.

3. Adhesive Properties: PVA 1788 provides strong adhesive properties, adhering well to various substrates such as paper, wood, fabric, and ceramics.

4. Biocompatibility: PVA is considered biocompatible and non-toxic, making it suitable for applications in industries such as pharmaceuticals, food, and cosmetics.

5. Barrier Properties: PVA films have good barrier properties against gases, oils, and odors, making them useful for packaging applications that require protection and preservation of contents.

 

Description:

• Chemical Formula: (C2H4O)n
• Molecular Weight: High molecular weight grade
• Appearance: PVA 2488 is a white or off-white powder.
• Solubility: PVA 2488 is soluble in water.

Specification:

• Degree of Polymerization: PVA 2488 typically has a high degree of polymerization, resulting in a high molecular weight.
• Hydrolysis Degree: PVA 2488 is partially or fully hydrolyzed, meaning some or all of the acetate groups have been replaced with hydroxyl groups. The degree of hydrolysis affects the polymer's solubility and other properties.
• Viscosity: PVA 2488 is available in various viscosity grades, which determine its flow characteristics and film-forming properties.
• Moisture Content: The moisture content of PVA 2488 is typically low, ensuring better stability and handling.

Application:

1. Adhesives: PVA 2488 is widely used as a binder in adhesive formulations. It provides excellent adhesion to various substrates, including paper, wood, fabric, and porous materials. PVA-based adhesives are commonly used in woodworking, packaging, and paper industries.

2. Films and Coatings: PVA 2488 is well-known for its film-forming properties. It is used in the production of water-soluble films and coatings. These films can be used for packaging, as water-soluble pouches, agricultural films, or as a release liner in various applications.

3. Textile Processing: PVA 2488 is utilized in textile processing as a sizing agent or warp-sizing material. It improves the weaving efficiency, enhances fabric strength, and reduces yarn breakage during processing.

4. Paper Industry: PVA 2488 is employed in the paper industry as a surface sizing agent. It improves the printability, ink absorption, and surface strength of paper, making it suitable for high-quality printing and packaging applications.

5. Personal Care Products: PVA 2488 can be found in personal care products, such as hair sprays, mousses, and gels. It acts as a film-forming agent, providing hold and styling properties to the hair.

Features:

• Water Solubility: PVA 2488 is highly soluble in water, forming clear and viscous solutions. This property makes it easy to handle and incorporate into various aqueous formulations.

• Film-Forming Ability: PVA 2488 can form transparent and flexible films with excellent tensile strength when dried. These films have good barrier properties and are resistant to oil and grease.

• Adhesive Strength: PVA 2488 exhibits strong adhesion to a wide range of substrates, making it suitable for various bonding applications.

• Biodegradability: PVA 2488 is considered biodegradable, making it an environmentally friendly choice for certain applications.

• Chemical Stability: PVA 2488 has good chemical stability, providing resistance to many common chemicals, solvents, and mild acids or bases.

 

Introduction:

 

PVA Powder is the selection of high quality of PVA, and environment-friendly water soluble polymer.Ittakes liquid nitrogen as a medium, Crushing processing in low temperature environments, have a good at film forming property, emulsibility, cohesive property .the film it product has great force ,solvent resistance,abrasion resistance,tensile strength and oxygen denial property.Due to PVA have hydrophilic group and hydrophobic group,so PVA couble be protective colloid as Polymer emulsion.

 

 

Packing: 20 kg/bag or out bag jumbo

Size free: 18mt/20'fcl

Appearance: White or the light yellowtail the sheet, crushed granular solids.

 

Las product properties: it is easy to dissolve, with a strongman strength a las Frost, good liquidity and stable stickiness, good hygroscopic strongman and re-accession, and it contains many groups hydrophobic for bind with others material hydrophobic.

 

Usage: it is Manly used for adhensive and polymers indutry; Ceramics's... Etc

 

The supplies heating method: directly insuflar 1-1.5kg/cm2's steamer for warm. Avoid the warmth To Open made the blaze directly, as the fund's vessel be burning to cause the poor's mixture.

 

'S Way desespumación: in case any foam, close the steamer water and cesar temporarily the stirring, after disappearing foams made Yes same then rise the temperature and gradually initiation the agitation. Las foams can be cutting down way significant after repeat like this for two or three times. Apply hfs if necessary,( e. G. N- octílico I alcoho pdd, poliéteres), with the dose generally in 0.01-0.05%.

 

 

The grees old	New name the grees	The hydrolysis (Mol %)	The volatile (%)	The viscosity (Mpa. S)	The ash (Wt %)	Ph value	The purity (Wt %)
Pva1788	Pva 088-20	87.0-89.0	& Le;5	20.5-24.5	& Le;0.4	5-7	& Ge;93.5
Pva1888	Pva 088-26	86.0-90.0	& Le;6	23.5-28.5	& Le;0.5	5-7	& Ge;92.5
Pva1895	Pva 095-28	94.0-96.0	& Le;5	26.0-30.0	& Le;0.5	5-7	& Ge;93.5
Pva1799	Pva 100-27	99.0& Ndash;100	& Le;5	22.0-28.0	& Le;0.7	5-7	& Ge;93.0
Pva1799a	Pva 098-27	98.0-99.0	& Le;5	23-28	& Le;0.7	5-7	& Ge;93.0
Pva1799s	Pva 100-27s	99.8-100.0	& Le;5	23-28	& Le;0.7	5-7	& Ge;93.0
Pva2488	Pva 088-50	87.0-89.0	& Le;5	45.0-55.0	& Le;0.5	5-7	& Ge;93.5
Pva0499		98.0& Ndash;99.4	& Le;5	4.0-5.0	& Le;0.7	5-7	& Ge;93.0
Pva0498		98.0& Ndash;98.8	& Le;5	4.0-5.0	& Le;0.7	5-7	& Ge;93.0
Pva0588	Pva 088-05	87.0-89.0	& Le;5	4.5-6.0	& Le;0.7	5-7	& Ge;93.0
Pva0599	Pva 098-05	98.0-99.0	& Le;5	5.0-6.5	& Le;0.7	5-7	& Ge;93.0
Pva1098	Pva 098-10	97.0-99.0	& Le;5	8.0-12.0	& Le;0.5	5-7	& Ge;93.5
Pva1399	Pva 098-15	98.0-99.0	& Le;5	13.0-17.0	& Le;0.5	5-7	& Ge;93.5
Pva1388	Pva 088-13	87.0-89.0	& Le;5	12.0-14.0	& Le;0.5	5-7	& Ge;93.5
Pva1797	Pva 096-27	96.0-98.0	& Le;7	23.0-29.0	& Le;0.7	5-7	& Ge;93.5
Pva2088	Pva 088-35	87.0-89.0	& Le;5	29.0-34.0	& Le;0.5	5-7	& Ge;93.5
Pva2497	Pva 097-70	96.0-98.0	& Le;5	54.0-64.0	& Le;0.5	5-7	& Ge;93.5
Pva2499	Pva 100-60	98.0-99.0	& Le;5	58.0-68.0	& Le;0.5	5-7	& Ge;93.5
Pva1897	Pva 097-29	96.0-98.0	& Le;5	27.0-31.0	& Le;0.5	5-7	& Ge;93.5
Pva1795	Pva 094-27	94.0-96.0	& Le;7	22.0-28.0	& Le;0.5	5-7	& Ge;93.5
Pva1899	Pva 098-30	98.0-99.0	& Le;5	28.0-32.0	& Le;0.5	5-7	& Ge;93.5
Pva2099	Pva 098-37	98.0-99.0	& Le;5	34.0-39.0	& Le;0.5	5-7	& Ge;93.5
Pva2288	Pva 088-40	87.0-89.0	& Le;5	38.0-42.0	& Le;0.5	5-7	& Ge;93.5
Pva1792	Pva 092-20	91.0-93.0	& Le;5	21.0-27.0	& Le;0.5	5-7	& Ge;93.5
Pva2092	Pva 092-35	91.0-93.0	& Le;5	28.0-34.0	& Le;0.5	5-7	& Ge;93.5
Pva2688	Pva 088-60	87.0-89.0	& Le;5	56.0-66.0	& Le;0.5	5-7	& Ge;93.5
Pva0388	Pva 088-03	87.0-89.0	& Le;5	3.0-4.0	& Le;0.5	5-7	& Ge;93.5
Pva0888	Pva 088-07	87.0-89.0	& Le;5	6.5-7.5	& Le;0.5	5-7	& Ge;93.5
Pva1088	Pva 088-08	87.0-89.0	& Le;5	8.0-10.0	& Le;0.5	5-7	& Ge;93.5

 

Applications:

Fiber procession:

Pva can be made into pva fiber through wet spinning,heat treatment and crimping-oiling in water,which own superior physical properities and chemical stability.

 

Textile sizing:

Pva can be used as texitel sizing and warp sizing widely.it is easy to make pva sizing agent and this agnet has good adhesion to cotton,line,polyester,vinylone and viscose fiber.

 

Adhesion:

Pva solution has very good adhesion to cellulose and the solution is very stable.it is widely used in printing and paper processing to replace starch,sodium silicate or use together.pva can be used as remoisture adhesive in stamp,label and packing industry due to good water solubility.urea folmaline resin with pva can be used as the adhesion of polywood due to good adhesion,water resistance and quick solidity.

 

Construction paint:

Water soluble paint based on pva is no expansion, no embrittlement,no toxicity and hazard,convinence to be used and lower in price.it is widely used as construction paints,such as building interior and exterior wall,floorboard,etc

 

stabilizer:

stabilizer operation can be classified roughly into two categories:for PVAC emulsion and suspending agent for PVC polymerization.

 

Butyral resin production:

Pva can be made into butyral resin by reaction with aldosterone in acid condition.

 

Packaging	1kg-15kg packing	2 PE bag inside + 1 foil bag outside in carton
	25kg-50kg packing	2 PE bag inside + 1 foil bag outside in drum
	Other packing	Customized packing
Drum Size	D38cm*H60cm or customized, 25 kg/ drum
Shipping	1-50kg	International Express	Fast and convenient	Door to Door
	50-500kg	Air Transportation	Fast and cheap	To Air Port
	Above 500kg	Sea Transportation	Cheap and convenient	To Port

 

 

 

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