Polyvinyl butyral is a synthetic resin formed by the condensation reaction of polyvinyl alcohol and n-butyraldehyde with hydrochloric acid as a catalyst. The English abbreviation is PVB.

It not only has high transparency, good cold resistance, water resistance, film formation and impact resistance, but is widely used in glass interlayer, porcelain decals, metal protective paint, tipping paper, aluminum foil, edge paint, fiber treatment agents, parts, printing inks, dyes, etc.

Application

PVB is mainly used in transparent materials (reliable glass interlayer), coatings (copper clad laminates, inks, paints), adhesives (glass bonding, metal bonding, enameled coil bonding, heat sealing adhesives, adhesives for transfer trademarks mixture), printing, etc.

Specification

Adhesive Grade PVB Resin

Type	Appearance	Volatile,% ≤	Viscosity, mPa.S	Hydrogen Chloride, % ≤	PVB %	Ash % ≤
EA-10	White or slightly yellow powder, no visible impurity	3.0	≤5	0.05	68-85 69-85 70-85	0.05
EA-20			5-10
EA-30			10-18
EA-40			18-30
EA-50			30-60
EA-60			60-180
EA-70			＞180

Film grade PVB resin

TYPE	EB-10
Appearance	White or slightly yellow powder, no visible impurity
Oxhydryl, %	17-20
Volatile, % ≤	2.0
Hydrogen Chloride, % ≤	0.01
ET2H, % ≤	0.05
Viscosity, mPa.S	180-280
Transparency, %	≥95 (430nm wavelength spectrophotometer) ≥98(6600nm wavelength spectrophotometer)
Melt index, g/10min	0.8-2.2
Film(transmittance), % ≥	89
Film(Haze), % ≤	0.3 0.4 0.6
Yellow index, % ≤	0.5 0.6 0.8
Density, g/cm3, ≥	0.2

Packing

In 12.5 KG plastic bags or as per customer requirement

Tags: Polyvinyl Butyral PVB

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Polyvinyl Butyral (PVB)

Polyvinyl Butyral (PVB)

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