Kaolin 1250 mesh K-60 fine powder for ceramic industry

产品概述
K-60 代表一种优质的煅烧高岭土，通过精确的热处理和颗粒大小优化而制成。这种层状结构的无水铝硅酸盐 (Al₂SiO₅) 粉末经过专有工艺处理，以实现卓越的性能特征，使其成为多个行业不可或缺的功能添加剂。

制造过程

• 采用喷气磨技术进行精密研磨，以实现超细颗粒分布

• 在 1000-1100°C 控制煅烧以优化晶体结构

• 先进的分类系统确保颗粒形态一致

• 可提供表面改性选项以满足特殊应用

主要物理性质

• 白度指数: 92-96% (ISO 2470 标准)

• 颗粒大小: D50 = 1.2-1.8μm (激光衍射)

• 325 目残留: ≤0.02% (湿筛)

• 油吸收: 35-45g/100g (ASTM D281)

• 比重: 2.58-2.63 g/cm³

• 折射率: 1.62

化学成分

• SiO₂: 52-54%

• Al₂O₃: 44-46%

• Fe₂O₃: ≤0.5%

• TiO₂: ≤0.3%

• LOI (1000°C): ≤0.8%

涂料中的性能优势

• TiO₂ 延伸: 实现 15-25% 的二氧化钛替代而不影响不透明度

• 膜增强:

  • 在耐擦洗性方面提高 40-50% (ASTM D2486)

  • 抗裂性提高 30%

  • 在高建材配方中减少泥裂

• 光学性能:

  • 控制光散射效率

  • 改善干遮盖特性

  • 增强亮度和色彩保持

成本优化益处

• 在典型配方中原材料成本降低 8-12%

• 改善的分散性使磨矿能耗降低 15-20%

• 与传统扩展剂相比，具有更高的负载能力

• 由于低油吸收减少粘合剂需求

聚合物应用
橡胶行业:

• 对机械制品具有优良的增强效果

• 改善硫化物的尺寸稳定性

• 降低化合物粘度以提高加工性能

• 增强电绝缘性能

塑料应用:

• 改善刚度和热变形温度

• 减少半结晶聚合物的翘曲

• 增强挤出型材的表面光洁度

• 在高负载下保持冲击强度

与标准高岭土的技术比较
| 性能 | K-60 | 常规高岭土 |
|----------|------|---------------------|
| 亮度 | 94% | 85-88% |
| 325目残留物 | 0.02% | 0.5-1.0% |
| 油吸收 | 40g/100g | 60-80g/100g |
| Titanium Dioxide Replacement | 20% | 8-12% |
| Scrub Resistance | +45% | +15-20% |

Quality Assurance

• ISO 9001:2015 Certified Production

• Ensures Consistency Between Batches

• Full Traceability from Mine to Final Product

• Provides Comprehensive Technical Data Sheets

Recommended Formulation Guidance

• Coatings: Add 5-15% by weight in aqueous systems

• Plastics: Add 10-25% in polyolefin compounds

• Rubbers: Add 15-40% in mechanical products

• Inks: Add 3-8% in publication gravure inks

Handling and Storage

• 25kg multi-layer paper bags with PE lining

• Bulk silo loading available

• 12 months shelf life under dry conditions

• Non-hazardous material classification

Sustainability Profile

• 30% reduction in carbon footprint compared to alternative extenders

• Natural mineral resources

• Complies with REACH standards

• Food contact approval available

This advanced calcined kaolin product continues to be recognized as a high-performance, cost-effective solution for formulators seeking to optimize material systems while maintaining superior product performance. Technical support and application development services are provided to help address specific formulation challenges.

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