An environmentally friendly, aqueous binder composition that includes a metal salt and a polyol is provided. The metal salt may be a water soluble salt, including salts of boron, aluminum, gallium, indium, tin, zirconium, thallium, lead, and bismuth. The polyol may include water miscible or water soluble polymeric alcohols including polyvinyl alcohol. The binder composition may be used in the formation of insulation materials and non-woven mats, among other products.

Described herein is a method of using glass fibers having a tensile strength according to DIN ISO 527-5 of 86.0 to 92.0 GPa, a tensile elastic modulus according to DIN ISO 527-5 of 2600 to 3200 MPa and a softening point according to DIN ISO 7884-1 of 900° C. to 950° C., the method including using the glass fibers to increase an impact strength and/or breaking elongation of molded articles made of molding materials including thermoplastic polyamides and elastomers.

Described herein is a method of using glass fibers having a tensile strength according to DIN ISO 527-5 of 86.0 to 92.0 GPa, a tensile elastic modulus according to DIN ISO 527-5 of 2600 to 3200 MPa and a softening point according to DIN ISO 7884-1 of 900° C. to 950° C., the method including using the glass fibers to increase an impact strength and/or breaking elongation of molded articles made of molding materials including thermoplastic polyamides and elastomers.

An alkali-free ultrafine glass fiber formula includes the following components, in mass percentage calculated based on 100 Kg: SiO2: 50% to 65%, Al.sub.2O.sub.3: 10% to 16.5%, CaO: 17% to 28%, MgO: 0.2% to 4.0%, Na.sub.2O and K.sub.2O: 0.1% to 0.8% in total, CeO.sub.2: 0.1% to 0.5%, Li.sub.2O: 0.1% to 0.7%, Fe.sub.2O.sub.3: 0.05% to 0.6%, TiO.sub.2: 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 CeO.sub.2 and Li.sub.2O are introduced, which avoids the use of B.sub.2O.sub.3 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.

An alkali-free ultrafine glass fiber formula includes the following components, in mass percentage calculated based on 100 Kg: SiO2: 50% to 65%, Al.sub.2O.sub.3: 10% to 16.5%, CaO: 17% to 28%, MgO: 0.2% to 4.0%, Na.sub.2O and K.sub.2O: 0.1% to 0.8% in total, CeO.sub.2: 0.1% to 0.5%, Li.sub.2O: 0.1% to 0.7%, Fe.sub.2O.sub.3: 0.05% to 0.6%, TiO.sub.2: 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 CeO.sub.2 and Li.sub.2O are introduced, which avoids the use of B.sub.2O.sub.3 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.

The present invention provides a method for synergistically vitrifying medium and low-level radioactive glass fibers and combustible solid nuclear waste incineration ashes. According to the chemical composition characteristics of incineration ashes of combustible solid wastes such as glass fibers, cotton, plastic, rubber and absorbent paper produced during the operation of nuclear facilities, the present invention takes the glass fibers as a glass matrix of combustible waste incineration ashes and minimizes the addition of an additive by a combination in different proportions through a synergistic treatment method. A vitrified form provided by the present invention meets the requirements of uniformity, density, impact resistance, chemical durability and the like of radioactive waste vitrified forms.

A glass composition and a glass fiber made thereof have a low thermal expansion coefficient and include a main material, a fluxing material and a reinforcing material. The main material includes silicon dioxide having a percentage by weight of 55%-66% of the glass composition. The reinforcing material includes aluminum oxide having a percentage by weight of 10%-20% of the glass composition. The fluxing material includes magnesium oxide, zinc oxide, and titanium dioxide. The percentage by weight of magnesium oxide is 3%-12% of the glass composition, the percentage by weight of zinc oxide is 0.01%-7% of the glass composition, and the percentage by weight of titanium dioxide is 0.01%-6% of the glass composition. By adding zinc oxide and titanium dioxide, the thermal expansion coefficient of the glass composition can be lowered.

A glass composition and a glass fiber made thereof have a low thermal expansion coefficient and include a main material, a fluxing material and a reinforcing material. The main material includes silicon dioxide having a percentage by weight of 55%-66% of the glass composition. The reinforcing material includes aluminum oxide having a percentage by weight of 10%-20% of the glass composition. The fluxing material includes magnesium oxide, zinc oxide, and titanium dioxide. The percentage by weight of magnesium oxide is 3%-12% of the glass composition, the percentage by weight of zinc oxide is 0.01%-7% of the glass composition, and the percentage by weight of titanium dioxide is 0.01%-6% of the glass composition. By adding zinc oxide and titanium dioxide, the thermal expansion coefficient of the glass composition can be lowered.

Disclosed are a glass fiber tape, a surface modification method and an application thereof. The surface modification method includes the determination of an optimal decarburizing condition of the glass fiber tape, the decarburization of the glass fiber tape, and the coating of palmitic acid.

Disclosed are a glass fiber tape, a surface modification method and an application thereof. The surface modification method includes the determination of an optimal decarburizing condition of the glass fiber tape, the decarburization of the glass fiber tape, and the coating of palmitic acid.