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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 compatibility with plasticizers such as triethylene glycol di-2-ethylhexanoate (TEGDEH) for tailored rheology and processing performance.
Consistent batch-to-batch quality with controlled molecular weight distribution and hydroxyl content.
Laminated automotive windshields and side windows.
Architectural safety glass for facades, skylights, and overhead glazing.
Security glazing systems including blast-resistant and forced-entry resistant laminates.
Photovoltaic module encapsulation layers for enhanced moisture barrier and mechanical durability.
Acoustic interlayers in noise-reducing laminated glass solutions.
| Chemical Type | Polyvinyl butyral (PVB) resin |
| Product Form | Free-flowing white granules |
| Appearance | White to off-white granular solid |
| Primary Applications | Safety glass interlayer, PV encapsulant, acoustic & security laminates |
| Key Features | High adhesion, optical clarity, impact resistance, plasticizer compatibility |
| Benefits | Enhanced passenger safety, UV stability, long-term delamination resistance |
| Storage Condition | Store in dry, cool, well-ventilated area; protect from moisture and direct sunlight |
Q1: What is the primary functional role of CCP Changchun PVB B18HX in adhesive and coating formulations?
A: PVB B18HX serves primarily as a film-forming binder and adhesion promoter, enhancing cohesion, flexibility, and interfacial bonding—especially in laminated glass interlayers, protective coatings, and specialty adhesives where toughness and optical clarity are critical.
Q2: How does PVB B18HX differ from standard PVB resins in terms of processing behavior?
A: B18HX is engineered for improved solubility in common organic solvent blends (e.g., alcohols, ketones, esters) and offers balanced viscosity development during solution preparation—enabling smoother casting, reduced gel formation, and better compatibility with high-solids formulations compared to conventional high-molecular-weight PVB grades.
Q3: Is PVB B18HX suitable for use in safety glass interlayer applications?
A: Yes—B18HX is specifically designed for laminated safety glass applications, delivering excellent optical transparency, impact resistance, and strong adhesion to both glass and polycarbonate substrates under standard lamination conditions.
Q4: What are typical storage and handling recommendations for this resin?
A: Store in original sealed containers in a cool, dry, well-ventilated area away from direct sunlight and strong oxidizing agents. Avoid prolonged exposure to moisture prior to use, as PVB resins are hygroscopic and may require conditioning before solvent-based processing.
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E-mail: wangxingqiang@ericwchem.com
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