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High adhesion strength to glass and various substrates, ensuring reliable interlayer bonding in laminated safety glass.
Excellent optical clarity and low haze, meeting stringent requirements for automotive and architectural glazing applications.
Superior impact resistance and tear propagation resistance under dynamic loading conditions.
Good thermal stability and processability in standard PVB film casting and lamination lines.
Consistent batch-to-batch performance with tightly controlled molecular weight distribution and butyralization degree.
Automotive laminated windshields and side windows.
Architectural safety glass for facades, skylights, and overhead glazing.
Security glazing systems including blast-resistant and bullet-resistant laminates.
Photovoltaic module encapsulation layers for enhanced moisture barrier and mechanical protection.
Acoustic laminated glass for noise reduction in transportation and building envelopes.
| Chemical Type | Polyvinyl butyral (PVB) resin |
| Product Form | Free-flowing white granules |
| Appearance | Off-white to light yellow granular solid |
| Primary Applications | Laminated safety glass interlayer film |
| Key Features | High adhesion, optical clarity, impact resistance |
| Benefits | Enhanced safety performance, process reliability, UV stability |
| Storage Conditions | Store in cool, dry, well-ventilated area; avoid direct sunlight and moisture |
| Compliance | Meets ISO 12543-5 and EN 356 standards for PVB interlayers |
Q1: What are the primary functional benefits of CCP Changchun PVB B14HX in adhesive and coating formulations?
A: PVB B14HX offers excellent adhesion to polar substrates—including glass, metals, and treated plastics—as well as good flexibility, film-forming capability, and compatibility with a wide range of resins and plasticizers. Its balanced molecular weight contributes to favorable solution viscosity and cohesive strength in final films.
Q2: Is PVB B14HX suitable for use in safety glass interlayer applications?
A: While PVB B14HX shares the core polyvinyl butyral chemistry used in laminated safety glass, it is specifically designed and optimized for industrial coatings, ink binders, and specialty adhesives—not structural interlayers. For automotive or architectural safety glass, dedicated high-molecular-weight, high-clarity PVB grades with certified impact resistance and optical performance are recommended.
Q3: How should PVB B14HX be dissolved and handled in solvent-based systems?
A: PVB B14HX dissolves readily in common organic solvents such as ethanol, isopropanol, ethyl acetate, and ketones (e.g., MEK, acetone). For optimal dissolution, gradual addition with moderate agitation is advised. Avoid prolonged exposure to strong acids or highly alkaline conditions, which may affect resin stability over time.
Q4: Can PVB B14HX be blended with other polymers, and what compatibility considerations apply?
A: Yes—PVB B14HX demonstrates good compatibility with nitrocellulose, acrylics, alkyds, and certain epoxy resins. Compatibility should always be verified experimentally in the target formulation, as interactions may vary depending on solvent system, solids content, and presence of additives or plasticizers.
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E-mail: wangxingqiang@ericwchem.com
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