摘要:
When electric discharging occurs inside a gas insulated apparatus in which sulfur hexafluoride is filled, hydrogen-fluoride gas is generated, which abrades a part formed of glass fiber reinforced plastics included in the apparatus. Previously, resin for preventing the abrasion has been coated on the surface of the part; however, a problem has occurred that the coating film peels off. Organic fiber woven cloth woven using organic fibers such as aramid fibers or the like having hydrogen fluoride resistance and mechanical toughness is wrapped around the surface of glass fiber reinforced plastics (11), and thermosetting resin is wettably impregnated into weave patterns of the organic fiber woven cloth and then heat cured; thereby, an abrasion-preventing protection layer (12) that does not peel off is formed.
摘要:
The invention relates to building material comprising composite compositions having a matrix of polymer networks and dispersed phases of particulate or fibrous materials. The polymer matrix contains a polyurethane network formed by the reaction of a poly- or di-isocyanate and one or more saturated polyether or polyester polyols, and an optional polyisocyanurate network formed by the reaction of optionally added water and isocyanate. The matrix is filled with a particulate phase, which can be selected from one or more of a variety of components, such as fly ash particles, axially oriented fibers, fabrics, chopped random fibers, mineral fibers, ground waste glass, granite dust, or other solid waste materials. The addition of water can also serve to provide a blowing agent to the reaction mixture, resulting in a foamed structure, if such is desired.
摘要:
A glass fiber and a method of manufacturing a glass fiber for reinforcing a transparent composite matrix are disclosed. The glass fiber includes a first glass material having a first set of mechanical properties including a first modulus and a first coefficient of thermal expansion (CTE) and a second glass material having a second set of mechanical properties including a second modulus and a second CTE. The second glass material forms a substantially uniform coating on the first glass material. The second CTE is less than the first CTE. The glass fiber is formed by reducing the cross-section of a glass fiber preform of the first glass material coated with the second glass material by hot working. Because of the selected difference in the CTE's, the first glass material imparts a compressive force upon the second glass material, which improves the strength of the glass fiber.
摘要:
A molded article is provided which is constituted by a fiber-reinforced material having a light weight, excellent surface smoothness and mechanical strength. Further, a thermosetting resin composition is provided which is advantageously used in the production of the molded article. Further, a fiber-reinforced molding material is provided which is advantageously used in the production of the molded article and which is excellent in a low-pressure moldability. The thermosetting resin composition comprising, a thermosetting resin; a hollow filler having a tapped bulk density of 0.24 to 0.45 g/cm 3 ; and a kaolin clay having a tapped bulk density of 0.60 to 1.20 g/cm 3 is employed in the fiber-reinforced molding material.
摘要翻译:提供了一种由重量轻,表面平滑度和机械强度优异的纤维增强材料构成的成型体。 此外,提供了有利地用于制造模塑制品的热固性树脂组合物。 此外,提供了有利地用于制造模制品并且具有优异的低压成型性的纤维增强模制材料。 所述热固性树脂组合物包含热固性树脂; 具有堆积体积密度为0.24至0.45g / cm 3的中空填料; 在纤维增强成型材料中使用具有0.60〜1.20g / cm 3的轻敲堆积密度的高岭土。
摘要:
The invention relates to fiber-reinforced polyamide[5,10] molding compounds which contain A) 40 to 90% by weight of a polyamide[5,10], B) 10 to 60% by weight of fiber- or mineral-containing fillers, C) 0 to 20% by weight of other additives, the sum of the weight percentages of components A) to C) adding up to 100%. The invention further relates to a method for producing said molding compounds, to the use of said molding compounds for producing any type of molded article and to the molded articles thereby obtainable, preferably any body component of a motor vehicle or electronic components, films and fibers.
摘要:
The present invention relates to a method for producing a polyurethane lamination resin, wherein a) an isocyanate prepolymer based on diphenyl-methane diisocyanate is mixed with a difunctionally started polyether, b) polyphenylene polymethylene polyisocyanate, c) trifunctionally started polyetherpolyol having a mean molecular weight of 350 to 600 g/mol, d) a thermoactivatable, blocked catalyst, e) optionally chain-lengthening agents and/or cross-linking agents, f) optionally water-absorbent materials, and g) optionally other additives to form said polyurethane lamination resin. Furthermore, the present invention relates to a polyurethane lamination resin, obtainable by such a method, and to the use of such a polyurethane lamination resin to produce laminates and skis or snowboards, containing said laminate.
摘要:
The invention is directed to a damage tolerant composite comprising: - at least one reversible supramolecular polymer, - fibre reinforcement, and - nanoparticles having an aspect ratio of at least 10.