Alkali-free ultrafine glass fiber formula

US11760687B2 · kind B2 · utility

Assignee

• TAISHAN FIBERGLASS ZOUCHENG CO., LTD. · CN

Inventors

• Yundong Sun · Jining City, CN
• Wei Li · 东风镇, CN
• Degang Zhang · Shanghai, CN
• Guo-Zhong Zhang · Jining City, CN
• Qiang Fang · Ballston Lake, US
• Yongyan LI · Tai'an County, CN
• Cong Ding · Jining City, CN
• Guodong Liu · Shanghai, CN
• Caihua Liu · Jining City, CN

Key dates

• Filing date: Dec 29, 2020
• Grant date: Sep 19, 2023
• Expiry date: Jan 19, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2213/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An alkali-free ultrafine glass fiber formula includes the following components, in mass percentage calculated based on 100 Kg: SiO2: 50% to 65%, Al2O3: 10% to 16.5%, CaO: 17% to 28%, MgO: 0.2% to 4.0%, Na2O and K2O: 0.1% to 0.8% in total, CeO2: 0.1% to 0.5%, Li2O: 0.1% to 0.7%, Fe2O3: 0.05% to 0.6%, TiO2: 0.1% to 1%, and impurities: the balance. In the preparation of alkali-free ultrafine glass fibers, no fluorine and boron-containing raw materials are used, and CeO2 and Li2O are introduced, which avoids the use of B2O3 and F that have a large impact on the environment, and reduces environmental pollution. A single fiber strength of prepared glass fibers is about 9% higher than that of the traditional E glass fibers, and the comprehensive performance of a prepared glass fiber product is significantly superior than that of the existing E glass fiber product.