Special HME fiber glass for wind turbine blades

Abstract

The invention relates to special HME fiber glass for wind turbine blades, which is mainly prepared by mixing SiO2, Al2O3, Fe2O3, CaO, MgO, NaO2 and K2O according to the proportion; and the special HME fiber glass is characterized in that the following components are added in the components by weight percent: 0.3-2.5% of TiO2, 0.1-0.6% of LiO2, 0-0.8% of WO3, and 0.1-0.6% of CeO2. The special HME fiber glass takes the SiO2, the Al2O3, the CaO and the like as the main components, further adds four important auxiliary components of the TiO2, the LiO2, the WO3 and the CeO2, and mainly uses the TiO2 for replacing B2O3 and F2 which are conventional in alkali-free glass fiber, thereby realizing the environment-friendly property; the WO3 is used selectively, so as to improve the elastic modulus and the acid resistance of the special HME fiber glass for the wind turbine blades while ensuring the cost; particularly, the SiO2 is selected to be more than 58%, so as to improve the high-temperature viscosity of the glass. In short, the special HME fiber glass for the wind turbine blades produced by using the components has the advantages of high elastic modulus, high requirement on product rigidness, good acid resistance and good insulation performance.

Description

technical field

[0001] The invention relates to a special HME fiber glass for wind power blades, in particular to a composition of organosilicon compounds, which can be melted to produce high-modulus HME fiber glass special for wind power blades. Background technique

[0002] The rapid quenching of glass from the molten state will cause some properties related to composition and structure in the fiber to be lower than those of glass block, the density will drop by 2%, the refractive index will drop by 0.15%-0.4%, and the elastic modulus will drop by 7%-25%. Within the range, the size of the above data depends on the size of the bulk glass elastic modulus. At present, the elastic modulus of E glass and E-CR glass at home and abroad are 72Gpa and 80Gpa respectively, and there is no glass whose elastic modulus exceeds 84Gpa. The glass fiber used in the production of wind power blades requires high elastic modulus of glass fiber, high product rigidity, good acid resistance and ...