Surface‑Modified Crystalline Silica Flour 5μm is silane‑surface‑treated crystalline silica flour as direct replacement for MIN‑U‑SIL 5. The silane modification enhances interfacial compatibility between mineral particles and polymer resin. When incorporated into plastics and thermoset formulations, this mineral filler upgrades heat‑resistance, dimensional stability and mechanical strength while retaining satisfactory transparency of finished polymer components.

Product Detail

Product Overview Surface‑Modified Crystalline Silica Flour 5μm (CAS 14808‑60‑7, MIN‑U‑SIL 5 Equivalent) is finely milled crystalline silica flour with silane surface modification. Controlled 5‑micron particle size delivers good flowability. Silane coupling agent improves wet‑out with organic resin matrix. Homogeneously dispersed inside thermoplastic or thermoset systems, the mineral filler effectively increases heat‑distortion temperature, restricts thermal expansion and enhances tensile and flexural strength of cured polymer parts. It maintains acceptable light‑transmitting performance of finished articles. This modified silica flour is suitable for engineering plastic, epoxy casting compounds and high‑temperature resistant composite formulations.

Key Features ‑ Silane surface treatment improves interfacial adhesion between silica and polymer matrix ‑ 5‑micron controlled particle size provides favourable powder flow and dispersion behaviour ‑ Improves heat resistance and dimensional stability of molded polymer components ‑ Retains satisfactory transparency for cured composite parts ‑ Direct functional equivalent grade for MIN‑U‑SIL 5 surface‑modified crystalline silica flour

Typical Technical Properties ‑ Chemical Type: Silane‑modified crystalline silica flour ‑ Appearance: Off‑white fine free‑flowing powder ‑ Median Particle Size: 5 μm ‑ Bulk Density: Refer to TDS ‑ Silane Treatment Level: Refer to TDS

Applications ‑ Engineering plastic modification: Heat‑resistant reinforcing filler for high‑performance thermoplastics ‑ Epoxy casting system: Transparent mineral filler for high‑temperature epoxy casting resin ‑ Thermoset composite: Functional filler for heat‑resistant moulded thermoset components ‑ Polymer compounding plant: Raw modified silica flour for custom high‑heat polymer formulations

Processing Recommendation Add surface‑modified crystalline silica flour during high‑speed mixing or kneading stage. Adjust filler loading to balance heat‑resistance requirement and finished‑part transparency. Ensure sufficient homogenization. Conduct lab compounding trials before mass polymer production.

Storage & Handling Store in cool, dry warehouse, avoid moisture and dust contamination. Reseal packaging after opening. Wear dust‑proof mask and protective gloves when handling fine mineral powder.

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Surface-Modified Crystalline Silica Flour 5μm CAS 14808-60-7 Heat-Resistant Transparent Filler (MIN-U-SIL 5 Equivalent)

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.