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Industrial Applications of CHBETTER™ Acicular Wollastonite Series
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Core Value of CHBETTER™ Acicular Wollastonite Series in Insulation Materials
The short acicular structure forms a stable framework within the slurry, effectively reducing:
· Thermal expansion/contraction cracks
· Drying shrinkage cracks
· Crazing of the finishing coat
With its low thermal expansion property, CHBETTER™ acicular wollastonite enhances high-temperature dimensional stability in:
· Refractory castables
· Class A fireproof insulation materials
The acicular structure interlocks to form a network under low shear conditions, improving:
· Sag resistance of rendering mortar
· Slip resistance
· Shape retention during thick-coat application
When combined with lightweight aggregates (such as Perlite or Vermiculite), CHBETTER™ acicular wollastonite serves as a micro-reinforcing filler that fills gaps and improves structural uniformity, preventing aggregate segregation.
Provides superior abrasion resistance for the finishing layer, significantly reducing surface scratching and powder shedding
The acicular framework enhances the spalling resistance of the matrix
Core Value of CHBETTER™ Series Acicular Wollastonite in Calcium Silicate Boards
The acicular structure provides a “micro-reinforcement effect,” improving:
· Flexural strength (Modulus of Rupture)
· Impact resistance
· Crack resistance and anti-chipping capability
With optimized particle size distribution, it improves:
· Packing density
· Internal structural homogeneity
· Cut-edge quality (reducing edge chipping)
Low coefficient of thermal expansion (CTE) of wollastonite
→ Superior control over drying shrinkage and moisture movement of the board.
With its high temperature resistance, zero decomposition, and exceptional stability, wollastonite contributes to:
· High-temperature dimensional stability
· Maintenance of non-combustibility ratings (Class A material requirements)
Wollastonite does not participate in adverse reactions and does not interfere with Tobermorite formation.
It further optimizes molding and demolding performance through its particle-supporting effect.
Demonstrates excellent compatibility with:
· Quartz powder
· Lime
· Cement
· Pulp / Cellulose fibers
Application of CHBETTER™ Series Acicular Wollastonite in Brake Pads
Core Value of CHBETTER™ Series Acicular Wollastonite in Brake Pads
Friction Stability and Thermal Fade Resistance:
Optimizes the friction window under high temperatures, reduces μ_fade, and ensures faster recovery after braking.
Reduces pad and rotor wear, promotes a more “plateau-like” contact surface, and minimizes dusting.
Promotes a uniform friction layer and refines wear debris to suppress low-speed creep groan and high-frequency squeal.
Enhances localized thermal conductivity and heat dissipation pathways, mitigating the tendency for hot spots and thermal cracking.
Increases density and hardness, improves crack and edge-chipping resistance, and enhances shear strength.
ompatibility
Works synergistically with phenolic resins, synthetic fibers, graphite, barium sulfate, and abrasives; adaptable to NAO, low-metallic, and semi-metallic systems.
Core Values of CHBETTER™ Series Acicular Wollastonite in Coatings
The acicular structure reinforces the coating film, improving its crack resistance and impact strength.
Enhances the abrasion and scratch resistance of the coating, extending its service life.
Improves resistance to chalking, weathering, and staining.
Acts as a pH buffer in certain systems, enhancing the storage stability of the coating.
Low thermal expansion improves cable roundness, reduces shrinkage, and enhances dimensional stability after heat aging, making it ideal for thick insulation and jacketing systems.
With its high Mohs hardness (>4.5), wollastonite enhances the scratch and crush resistance of cable jackets, reducing friction-induced damage during installation.
Based on these properties, the CHBETTER™ acicular wollastonite series offers specialized products for architectural, industrial, powder, and wood/floor coatings by precisely controlling aspect ratio, particle size distribution, and surface treatment.
Core Value of CHBETTER™ Acicular Wollastonite in Halogen-Free Flame Retardant (LSZH) Cables
Acicular wollastonite forms a micro-skeleton in highly filled LSZH systems, reinforcing tensile and tear strength, reducing notch sensitivity, and mitigating the risk of cracking while maintaining flexibility.
Wollastonite remains structurally stable at high temperatures, improving heat deformation resistance, strength retention after heat aging, and anti-dripping properties in LSZH cable compounds.
Maintains or improves electrical insulation performance.
Acicular wollastonite works synergistically with $Mg(OH)_2$ grading to improve flow and dispersion, reducing die pressure while ensuring stable traction and a smooth extruded surface.
synergy.
Works synergistically with anti-corrosive pigments such as zinc phosphates to enhance coating corrosion resistance (especially in industrial/protective coatings).
Helps prevent sagging and improves application for high-solid and thick-film coatings.
Core value of CHBETTER™ series acicular wollastonite in PE/PP (such as construction safety nets)
Provides an irreplaceable inorganic skeleton within the system.
The acicular structure enhances tensile strength, modulus, tear resistance, and HDT, meeting the engineering requirements for strength and heat resistance in wire-drawing products.
Wollastonite forms stable inorganic residues and strengthens the char layer, significantly improving the anti-dripping performance of PP/PE systems.
Wollastonite works synergistically with $Mg(OH)_2$, $Al(OH)_3$, and APP/MPP to increase the Limiting Oxygen Index (LOI) and UL94 pass rates.