Jiangxi Huatesheng New Material Limited Company
Jiangxi Huatesheng New Material Limited Company PVB interlayer film factory
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polyvinyl butyral sheet (PVB film) is used as interlayer film in production of laminated safety glass for Automotive front glass and buildings; And potential costumers of PVB Films are glass factories. The PVB film is a high molecular polymer made from PVB resin and plasticizer, together With different additives according to different application and formed through Plasticization and extrusion by extruder. It is semitransparent, elastic, flat, without Impurity but with some roughness.
The polyvinyl butyral sheet is a strong adhesive, well-known for its properties as high transparency, Heat-resisting, cold-resistant, moisture-proof, and irradiation resistance. Insulation and High mechanical strength and the best adhesive material for laminated glass.
The laminated safe glass can enhance elasticity of glass and absorb impact forces from Outside. Even the glass Is broken, the film still adheres tightly to the surface of glass and Keeps the structure as usual, which protects people from accidental injure and robbery.
polyvinyl butyral sheet can damp sound waves and effectively block the spread of the noise. It can also Effectively block the penetration of ultraviolet ray to reduce greatly heat and the damages To human body and objects.
technical parameters
| No. | Classfication ltems | 0.38mm | 0.76mm |
| 1 | Appearance | ||
| 1.1 | Appearances | Achromatic or slinghtly yellow lucid film With velvet surface that has no scar or crease . | |
| 1.2 | Dotted waste sundries and air buhbles | ||
| ≤0.05 | Allowed if exist separately | ||
| 0.05 | Not exceeding 8 places per film | Not exceeding 5 places per film | |
| Making marks Define an extanded 0.5 metar film per place Add one extra meter par place | |||
| 2 | Size | ||
| 2.1 | Thickness ( mm ) | 0.38±0.02 | 0.76±0.02 |
| 2.2 | Uniformity | Horizontal thickness warp should not exceed 15um at a distance of 25mm; horizontal Ehickness warp Should not exceed 20um at a distance of 50cm. | |
| 2.3 | Length tolerance (m ) | 0-5 | 0-2 |
| 2.4 | Width tolerance ( mm ) | 0-20 | |
| 3 | Moisture ( % ) | 0.4-0.6 | |
| 4 | Extending intansion ( MPa ) | ≥20.0 | |
| 5 | Ruplura extending rate (%) | ≥200 | |
| 6 | Fograge (%) | <0.4 | |
| 7 | Shrinking rate (60/15min) ( % ) | ≤12 | |