Pre-impregnated roving for composite materials

• Main Authors: MECUSON, GAUTIER, PAIRASA, ODD, DE LOUARD SANDRINE, ANSART FLORENCE, FANNY GRUBACH, LAVALLEE NICOLAS
• Format: Patent
• Language: Chinese; English
• Published: 19.12.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to a method for impregnating rovings made of oxide fibres (11) with an alumina and silica matrix, comprising a step (4) of introducing the oxide fibre rovings into an impregnation bath (15), characterized in that the impregnation bath is produced by a sol-gel route, and comprising a silica precursor in the form of a hybrid polymeric sol and an alumina precursor and ceramic particles in the form of a colloidal sol. 本发明涉及用氧化铝和二氧化硅基质浸渍由氧化物纤维(11)制成的粗纱的方法，该方法包括将氧化物纤维粗纱引入到浸渍浴(15)中的步骤(4)，其特征在于，浸渍浴通过溶胶-凝胶途径被生产，并且包含呈杂化聚合溶胶形式的二氧化硅前体和呈胶体溶胶形式的氧化铝前体和陶瓷颗粒。