Chongqing Polycomp International Corporation

Guoyun Yang

Yuan Yao

Lixiong Han

Cong Zhang

Bo Yu

Bin Zhou

Hongbin Li

Baijiang Gong

Shaorong Ban

Haishen Liu

A highly temperature-resistant glass fiber and a preparation method therefor. The glass fiber comprises 62-66 wt % of SiO, 14-19 wt % of AlO, 15-20 wt % of CaO, 0-2 wt % of MgO, 0-3 wt % of FeO, and 0-1.2 wt % of TiO, the total content of NaO and KO is 0.1-0.8 wt %. By precisely controlling the mixture of the components, the glass fiber has good resistance to high temperature and formability, and significantly increases the high-temperature softening point. The glass fiber has a forming temperature of not exceeding 1380&#xb0; C., an upper limit temperature of devitrification of lower than 1280&#xb0; C., and a high temperature softening temperature of 950&#xb0; C. or above.

Highly temperature-resistant glass fiber and preparation method therefor

A low dielectric constant glass fiber, in mass percentage, includes 50%&#x2dc;60% of SiO, 10%&#x2dc;20% of AlO, 12%&#x2dc;20% of BO, 0&#x2dc;4% of CaO, 4%&#x2dc;10% of MgO, 0.1%&#x2dc;0.5% of NaO+KO, 0&#x2dc;0.5% of LiO, 0.2%&#x2dc;3% of Fand 0&#x2dc;0.2% of FeO. Compared with the related art, the glass composition contains higher content of SiO, which can greatly reduce dielectric properties of the glass fiber. Meanwhile, a small amount of Fis added thereto, which not only can effectively improve the fiberizing temperature of the glass fiber but also can reduce glass viscosity and density and reduce glass refractive index and dielectric properties. In addition, lower content of CaO is further contained, but almost no alkali metal particles such as NaO+KO are contained, which further reduces the dielectric properties of the glass fiber.

Low dielectric constant glass fiber

Growing community of inventors

Chongqing, China

Guoyun Yang