摘要:
The present invention relates to a glass composition which is resistant to alkalis and to acids, in particular for the preparation of reinforcing glass strands, which comprises the following constituents within the limits defined below, as percentages by weight: SiO2≧58%, preferably ≦65% ZrO215-20% R2O (R = Na, K or Li)≧14% K2O≦0.1%, preferably ≦0.05%, RO (R = Mg, Ca or Sr)2.5-6% MgO≦4% TiO2>1 and ≦4% the composition additionally being devoid of F, comprising less than 1% of impurities (Al2O3, Fe2O3 and Cr2O3) and satisfying the following relationships: ZrO2+TiO2≧17% ZrO2/TiO2≧6 It also relates to the use of the glass strands obtained in the reinforcing of inorganic materials, for example cementitious materials, or organic materials, for example plastics, and to the composites including such strands.
摘要:
The present invention relates to a glass composition which is resistant to alkalis and to acids, in particular for the preparation of reinforcing glass strands, which comprises the following constituents within the limits defined below, as percentages by weight: SiO2≧58%, preferably ≦65% ZrO215-20% R2O (R = Na, K or Li)≧14% K2O≦0.1%, preferably ≦0.05% RO (R = Mg, Ca or Sr)2.5-6% MgO≦4% TiO2>1 and ≦4% the composition additionally being devoid of F, comprising less than 1% of impurities (Al2O3, Fe2O3 and Cr2O3) and satisfying the following relationships: ZrO2+TiO2≧17% ZrO2/TiO2≧6 It also relates to the use of the glass strands obtained in the reinforcing of inorganic materials, for example cementitious materials, or organic materials, for example plastics, and to the composites including such strands.
摘要翻译:本发明涉及耐碱和酸的玻璃组合物,特别是用于制备增强玻璃丝束的玻璃组合物,其包含下列限定的以下组分,重量百分比:SiO 2 = 58%,优选 ZrO2 15-20%R2O(R = Na,K或Li)> = 14%K2O RO(R = Mg,Ca或Sr)2.5-6%MgO TiO2> 1,组合物另外不含F, 1%的杂质(Al 2 O 3,Fe 2 O 3和Cr 2 O 3),并且满足以下关系:ZrO 2 + TiO 2 = 17%ZrO 2 / TiO 2> = 6还涉及在无机材料的增强中获得的玻璃丝的用途,例如 水泥质材料或有机材料,例如塑料,以及包括这种链的复合材料。
摘要:
The present invention relates to the use of glass reinforcing yarns of given composition for obtaining plastics with improved resistance to corrosive, especially basic and acid, substances. It also relates to the composites comprising a plastic reinforced by such glass yarns.
摘要:
The subject of the invention is a polyolefin fiber for the reinforcement of products based on fibers and a hydraulic-setting substance, characterized in that it includes a size carrying a function which assists the fiberizing operation, a function in which the fiber can be wetted by the composition of the hydraulic-setting substance, and a function of promoting adhesion to the hydraulic-setting substance. The fiber is used as reinforcing fiber in a product based on fibers and a hydraulic-setting substance.
摘要:
The present invention relates to reinforcement yarns coated with a sizing composition comprising at least one silane satisfying the formula: Si(R1) (R2) (R3) (R4) in which: R1, R2 and R3 are chosen from the following atoms or groups: —H (except in the case of R3), —Cl, —O—R5, —O—R6—O—R5, —O—(C═O)—R5, —O—R6—(C═O)—R5, R5 and R6 being chosen from hydrocarbon radicals whose main chain has from 1 to 4 carbon atoms; R4═—R7—NHR8 R7 being chosen from branched hydrocarbon radicals whose main chain has from 2 to 6 carbon atoms, R8 being chosen from the following groups: —H, —R9—NH2, —R10—NH—R9—NH2, R9 being chosen from hydrocarbon radicals containing 1 to 12 carbon atoms or from carbonyls, and R10 being chosen from hydrocarbon radicals whose main chain has from 1 to 6 carbon atoms. The glass yarns according to the invention are particularly suitable for reinforcing organic materials, the yarns and composites obtained resisting in a corrosive medium.
摘要:
A method of surface functionalization of an organic fiber, characterized in that a surface portion of the fibers is chemically modified using a uniform surface treatment at atmospheric pressure, in a controlled gas environment, and in that said surface portion is brought into contact with a solution comprising at least one sizing agent making it possible to improve the functionalities of said fiber.
摘要:
The present invention relates to reinforcement yarns coated with a sizing composition comprising at least one silane satisfying the formula: Si(R1)(R2)(R3)(R4) in which: R1, R2 and R3 are chosen from the following atoms or groups: —H (except in the case of R3), —Cl, —O—R5, —O—R6—O—R5, —O—(C═O)—R5, —O—R6—(C═O)—R5, R5 and R6 being chosen from hydrocarbon radicals whose main chain has from 1 to 4 carbon atoms; R4═—R7—NHR8 R7 being chosen from branched hydrocarbon radicals whose main chain has from 2 to 6 carbon atoms, R8 being chosen from the following groups: —H, —R9—NH2, —R10—NH—R9—NH2, R9 being chosen from hydrocarbon radicals containing 1 to 12 carbon atoms or from carbonyls, and R10 being chosen from hydrocarbon radicals whose main chain has from 1 to 6 carbon atoms. The glass yarns according to the invention are particularly suitable for reinforcing organic materials, the yarns and composites obtained resisting in a corrosive medium.