Calcium zinc stabilizer

Parameter

Performance Characteristics

In addition to basic properties like thermal stability, light stability, and compatibility required for standard PVC stabilizers, PVC foam board stabilizers possess the following unique features:

1、Foaming Synergy

Compatible with foaming agents (e.g., AC foaming agent) to regulate foaming speed and cell structure, preventing premature foaming or inadequate expansion. Ensures uniform and fine-pored foam cells.

2、Melt Strength Adjustment

Enhances PVC melt strength to prevent melt fracture during foaming, maintains cell integrity, and avoids defects like collapsed or hollow cells.

3、Dispersion & Lubrication Balance

• Uniform Dispersion: Ensures even distribution in the foaming system, preventing localized overheating or stabilizer aggregation.
• Moderate Lubrication: Reduces processing friction and avoids excessive melt viscosity hindering foaming, while preventing overlubrication from weakening melt strength.

4、Yellowing Resistance

Minimizes product yellowing during high-temperature processing (typical in foaming), especially critical for white or light-colored foam boards.

5、Environmental & Hygiene Compliance

Food-contact foam boards (e.g., cabinet panels) require lead-free, phthalate-free stabilizers compliant with safety standards (e.g., FDA).

6、Anti-Exudation Properties

Prevents stabilizer migration to the surface during long-term use, avoiding surface defects (e.g., stickiness, "chalking") or impaired adhesion to other materials.

Application Fields

1. Construction & Decoration

• Indoor Decorative Panels:

           Integrated wall panels, ceilings, decorative moldings – Require eco-friendly stabilizers (e.g., Ca/Zn) for low VOC emissions in indoor environments.
           Flame-retardant foam boards – For partition walls and fireproof decorations; stabilizers must synergize with flame retardants (e.g., antimony trioxide).

• Outdoor Building Materials:

           Exterior insulation boards, window sills – Demand weather-resistant stabilizers (e.g., composite stabilizers with UV absorbers) to prevent yellowing/chalking from prolonged sun exposure.
           Outdoor signage boards, display racks – Require impact/aging resistance; often use Ca/Zn or organotin stabilizers to enhance mechanical strength.

2.Furniture & Home Furnishings

• Custom Furniture Panels: Cabinet/door panels – Prioritize surface smoothness and color stability; Ca/Zn stabilizers with excellent initial thermal stability prevent yellowing in light-colored boards.
• Bathroom Panels
• Home Decor Components: Mirror/frame moldings (foam-carved) – Stabilizers must ensure uniform plasticization and minimize cell defects (e.g., oversized or ruptured cells).

3. Packaging & Logistics

• Cushioning Packaging: Eco-friendly foam boards (replacing plastic foam) for electronics/appliance packaging – Stabilizers coordinate with foaming agents (e.g., AC) to control cell density and enhance cushioning.
• Transport Pallets/Skids: Heavy-duty industrial foam boards require high strength and wear resistance; stabilizers boost melt strength (e.g., via polyethylene wax for improved flow).

4. Advertising & Display

• Signage Panels: Engraved signage boards, display panels – Demand high surface flatness; stabilizers ensure uniform foaming to prevent localized collapse or density variation.
• Exhibition Props:Temporary booths/models – Require rapid processing; stabilizers must adapt to high-speed extrusion (e.g., Ca/Zn composite stabilizers shorten plasticization time).

5. Automotive & Transportation

• Interior Components: Door liners, roof insulation layers – Require low-odor, low-VOC stabilizers (e.g., organotin or eco-friendly Ca/Zn) compliant with automotive interior standards.
• Luggage Compartment Boards: Lightweight foam boards need impact/oil resistance; stabilizers must be compatible with plasticizers (e.g., DOS).