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Polyvinyl butyral (PVB) powder is a synthetic thermoplastic resin, often appearing as a fine white powder (CAS 63148-65-2), prized for its exceptional adhesive strength, high optical transparency, and flexibility. Primarily used as a binder in industrial coatings, printing inks, and technical ceramics, it is manufactured by reacting polyvinyl alcohol (PVA) with butyraldehyde, resulting in a polymer that readily dissolves in organic solvents like ethanol, acetone, and toluene.
Key Properties of PVB Powder
- Adhesion: Exhibits superior bonding to glass, metals, ceramics, wood, and plastics, notes.
- Solubility: Highly soluble in alcohols and ketones, allowing for versatile formulation in solvent-based systems.
- Film-Forming: Forms tough, flexible, and clear films, particularly when plasticized.
- Chemical Stability: Resistant to oils and water, offering good UV resistance.
- Thermal Characteristics: Glass transition temperature (Tg) usually ranges from 50°C to 90°C depending on polymerization, and it is heat-sealable above 120°C.
Primary Applications
- Coatings & Primers: Used in metal anti-corrosion wash primers, baking varnishes, and wood sealers due to its high flexibility.
- Printing Inks: Acts as a binder in gravure, flexographic, and transfer inks, especially for packaging and aluminum foil.
- Ceramic Binders: Used in the electronics industry as a temporary binder in tape casting and ceramic injection molding (CIM) for ceramic components.
- Adhesives: Utilized in hot-melt adhesives and structural bonding for wood and metal.
- Safety Glass Interlayer: While often applied as a film, PVB resin is the precursor to the films used between glass panes.
- 3D Printing: Used to produce specialized 3D printer filaments.
Common Grades and Suppliers
PVB resin is categorized by viscosity and hydroxyl content, which determine its solubility and adhesive properties.
- Mowital® (Kuraray): A leading brand offering powders with excellent flowability for inks and coatings.
- CCP (Chang Chun Group): Known for producing high-quality PVB resin (B series) in Taiwan for global distribution.
- iSuoChem: Supplies various grades of PVB resin (e.g., A-70) for coating and ink applications.
- Wanwei: Produces adhesive-grade (WWW series) and film-grade (WW series) PVB resins.
Safety and Storage
Pure PVB is considered non-toxic, but fine dust can cause respiratory irritation. It should be stored in a cool, dry place and kept away from strong acids, which can cause decomposition.
Are you looking for PVB powder for a specific application, such as industrial coatings or ceramic binding?
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Polyvinyl butyral resin prepared from vinyl acetate monomer
Sigma-Aldrich
https://www.sigmaaldrich.com › product › sigma
Sigma-Aldrich
https://www.sigmaaldrich.com › product › sigma
Polyvinyl butyral is a type of resin that can be synthetically prepared from vinyl acetate monomer. It finds applications in the manufacture of phenolic ...Read more
$33.40In stock2–4 day delivery
Poly(vinyl butyral)
Scientific Polymer Products
https://scipoly.com › Shop › Polymers
Scientific Polymer Products
https://scipoly.com › Shop › Polymers
Approx Mw: 70,000 [GPC]. Brookfield viscosity: 150cp (15% solution in 60/40 toluene/ethanol @25°C). CAS Number: 27360-07-2. Density: 1.083 (23°C).Read more
$62.00
Mowital® Product Shapes | Powders, granules, films
MOWITAL
https://www.mowital.com › PRODUCTS
MOWITAL
https://www.mowital.com › PRODUCTS
Add radiant brilliance to your various applications with the PVB (polyvinyl butyral) powder of MOWITAL®. Applications PVB powder: Printing inks; Paints; Powder ...Read more
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Web results
Polyvinyl butyral
Wikipedia
https://en.wikipedia.org › wiki › Polyvinyl_butyral
Wikipedia
https://en.wikipedia.org › wiki › Polyvinyl_butyral
Polyvinyl butyral (or PVB) is a resin mostly used for applications that require strong binding, optical clarity, adhesion to many surfaces, toughness and ...Read more
PVB Powder
Elephchem
https://www.elephchem.com › pvb-powder
Elephchem
https://www.elephchem.com › pvb-powder
It is widely used in the fields of manufacturing laminated safety glass, coatings, adhesives, ceramic film decals, vacuum aluminum foil paper, electrical ...Read more
Web results
100g Polyvinyl Butyral Resin Powder Binder Ultrafine 99+ ...
eBay
https://www.ebay.com › ... › Other Business & Industrial
eBay
https://www.ebay.com › ... › Other Business & Industrial
Premium Polyvinyl Butyral (PVB) Resin Powder - High-Performance Binder for Safety Glass, Coatings, and Advanced Composites! This fine white powder (CASÂ ...
$14.90In stock$10.75 delivery30-day returns
How to solvate polyvinyl butyral resin (PVB) and what ...
Schem.net
https://www.schem.net › blog › how-to-solvate-polyvin...
Schem.net
https://www.schem.net › blog › how-to-solvate-polyvin...
Then add PVB resin powder slowly during stirring. After the PVB resin is dispersing and swelling, we can add alcohol solvents (such as n-butanol, ethanol, etc.)Â ...Read more
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PVB (Polyvinyl Butyral)
Fireworks Cookbook
https://www.fireworkscookbook.com › product › pvb
Fireworks Cookbook
https://www.fireworkscookbook.com › product › pvb
It appears as a white to off-white powder or granule and is known for its adhesive, flexible, and film-forming properties. Uses in Fireworks. In fireworks ...Read more
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Polyvinyl Butyral
Gantrade
https://www.gantrade.com › products › polyvinyl-butyral
Gantrade
https://www.gantrade.com › products › polyvinyl-butyral
Key properties of PVB include having good solubility in polar solvents, good film toughness, impact and penetration resistance, and good adhesion with glass, ...Read more
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