High-Quality Calcium Sulfate Whisker for Enhanced Performance

1. Industry Overview & Market Trends

The global market for Calcium Sulfate Whisker has been steadily expanding as industries seek advanced reinforcing and functional materials. With its unique structural and physical properties, Calcium Sulfate Whisker is widely adopted in plastics, rubber, paints, composites, and environmental protection applications. Industry research, such as the journal report by Composites Part B: Engineering (Elsevier, 2024), underscores its superior reinforcing effect and compatibility in composite matrices.
The trend is further accentuated by the growing demand for lightweight, high-strength, eco-friendly materials across automotive, electronics, and construction sectors. According to the latest industry review, the production and application of Calcium Sulfate Whisker are anticipated to witness a compound annual growth rate (CAGR) of 6% from 2024-2029.

2. Product Introduction — Calcium Sulfate Whisker

Product Name: Calcium Sulfate Whisker
Specification: 1250 mesh
Form: powder
Color: white
CAS NO.: 10101-41-4
Product URL: https://www.baifengmining.com/calcium-sulfate-whisker.html
Manufacturer: Shijiazhuang Baifeng Mining Co.,Ltd

Calcium sulfate whisker is a high-performance, acicular crystalline material. Its exceptional aspect ratio, strength, and environmental safety render it an ideal reinforcement additive in polymer matrices, mechanical parts, lubricants, and fire-resistant composites. It is increasingly recognized for enhancing mechanical durability, dimensional stability, thermal insulation, and even barrier performance in diverse materials.

3. Technical Data Overview — Parameter Table

4. Data Visualization — Technical Parameter Trends

5. Applications & Industry Scenarios

• Polymer & Plastic Reinforcement: Adding Calcium Sulfate Whisker improves mechanical modulus, toughness, and dimensional stability of PP, PE, PVC, and ABS products.
• Rubber & Elastomer Fillers: Acts as a green, high-efficiency reinforcing filler, enhancing wear resistance and flexural performance in automotive and industrial rubber goods.
• Paints & Coatings: Offers excellent dispersibility and whiteness for advanced coatings and environmental paints, boosting scratch resistance and insulating properties.
• Ceramic & Building Materials: Used for reinforcing ceramic plates, tiles, and gypsum boards. Enhances tensile strength and flexural resistance in eco-friendly construction panels.
• Friction Material (Brake Pads): Strengthens the abrasion and friction qualities of high-end brake pads, contributing to thermal stability and reduced wear loss.
• Composite & Fireproof Materials: Widely integrated in flame-retardant composites and high-temperature insulation boards, owing to the stability of CaSO₄ structure.
• Filtration Media: Serves as a rigid, inert component for high-purity, chemical-resistant filtration membranes in water and solvent systems.

6. Expertise Q & A — Professional Terminology

1. What is the typical morphology and structure of Calcium Sulfate Whisker?

Calcium Sulfate Whisker demonstrates a needle-like (acicular) morphology with a high aspect ratio (typically 20:1 ~ 50:1), which is critical for its reinforcing ability in polymer and composite matrices.

2. What are the standard mesh and particle size specifications?

The prevalent commercial standard is 1250 mesh, with an average particle diameter below 10 μm, ensuring superior dispersibility and processability.

3. What purity levels are required for industrial applications?

Most applications require a purity (as CaSO₄·2H₂O) above 98%. Shijiazhuang Baifeng Mining Co.,Ltd supplies Calcium Sulfate Whisker with typical purity of 98.5%.

4. What is the significance of aspect ratio for whisker technical performance?

The aspect ratio (length/diameter) determines the reinforcing efficiency, as higher ratios lead to better stress transfer and mechanical improvement within the matrix.

5. Are there any international or industry-specific installation/application standards?

Utilization in composites follows ISO 13000 for fillers/reinforcements, and ASTM D2566, which provide evaluation benchmarks for whisker-based materials.

6. What are the recommended storage and handling precautions?

Store in a cool, dry area. Avoid moisture and excessive heat (keep below 50°C). Minimize airborne dust during large-scale handling.

7. What compatibility exists with polymer matrix materials?

Calcium Sulfate Whisker is compatible with a range of thermoplastic (PP, PE, ABS) and thermoset (epoxy, phenolic) resin bases. Surface modification (silane/coupling agents) is often used to enhance matrix adhesion.

7. Factors Impacting Quality & Selection

1. Purity: Higher purity translates to better thermomechanical performance, lower impurity migration.
2. Aspect Ratio: Affects reinforcing effect and blending uniformity.
3. Moisture Content: Low moisture avoids agglomeration and processing defects.
4. Thermal Stability: Key for high-temperature or fire-retardant applications.
5. Surface Modification: Treated products display better matrix compatibility and processing behavior.
6. Consistency & Dispersibility: Reliable uniformity ensures repeatable results in large-batch productions.
7. Certifications: Check for testing compliance (e.g. ISO, REACH, RoHS) as indicators of supplier credibility.

8. EEAT – Demonstrating Expertise, Authoritativeness, and Trustworthiness

As a leading supplier, Shijiazhuang Baifeng Mining Co.,Ltd emphasizes rigorous material testing, traceability, and technical support (see product documentation). The product is tested by industry-accepted methods (ICP-MS, laser diffraction, TGA), ensuring stable, safe performance. Most applications are in line with published research and international standards, as discussed in:

• Composites Part B: Engineering – Advances in Whisker-Reinforced Composites (2024)
• Recent developments on inorganic whisker-reinforced composites: A review
• Micronal Industry Forum – Calcium Sulfate Whisker Applications (2023)
• ResearchGate – Synthesis and Application of Calcium Sulfate Whiskers