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1. CN107892582 - Preparation method for carbon fiber reinforced nanoporous carbon heat-insulating composite material

Amt China
Aktenzeichen/Anmeldenummer 201711322146.8
Anmeldedatum 12.12.2017
Veröffentlichungsnummer 107892582
Veröffentlichungsdatum 10.04.2018
Erteilungsnummer 107892582
Erteilungsdatum 24.01.2020
Veröffentlichungsart B
IPC
C04B 38/04
CChemie; Hüttenwesen
04Zemente; Beton; Kunststein; keramische Massen; feuerfeste Massen
BKalk; Magnesia; Schlacke; Zemente; Massen hieraus z.B. Mörtel, Beton oder ähnliche Baumaterialien; künstliche Steine; keramische Massen; feuerfeste Massen; Behandlung von Naturstein
38Poröser Mörtel, Beton, Kunststein oder poröse keramische Erzeugnisse; deren Herstellung
04durch Herauslösen zugesetzter Stoffe
C04B 35/84
CChemie; Hüttenwesen
04Zemente; Beton; Kunststein; keramische Massen; feuerfeste Massen
BKalk; Magnesia; Schlacke; Zemente; Massen hieraus z.B. Mörtel, Beton oder ähnliche Baumaterialien; künstliche Steine; keramische Massen; feuerfeste Massen; Behandlung von Naturstein
35Geformte keramische Erzeugnisse, die durch ihre Zusammensetzung gekennzeichnet sind; keramische Werkstoffe; Pulver aus anorganischen Verbindungen als Ausgangsstoffe für die Herstellung keramischer Produkte
71Makroskopische Verstärkungsmittel enthaltende keramische Produkte
78nicht metallische Stoffe enthaltend
84imprägnierte oder überzogene Stoffe
C04B 35/624
CChemie; Hüttenwesen
04Zemente; Beton; Kunststein; keramische Massen; feuerfeste Massen
BKalk; Magnesia; Schlacke; Zemente; Massen hieraus z.B. Mörtel, Beton oder ähnliche Baumaterialien; künstliche Steine; keramische Massen; feuerfeste Massen; Behandlung von Naturstein
35Geformte keramische Erzeugnisse, die durch ihre Zusammensetzung gekennzeichnet sind; keramische Werkstoffe; Pulver aus anorganischen Verbindungen als Ausgangsstoffe für die Herstellung keramischer Produkte
622Formverfahren; Pulver aus anorganischen Verbindungen als Ausgangsstoffe für die Herstellung keramischer Produkte
624Sol-Gel-Verfahren
CPC
C04B 35/624
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
35Shaped ceramic products characterised by their composition
622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
624Sol-gel processing
C04B 35/83
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
35Shaped ceramic products characterised by their composition
71Ceramic products containing macroscopic reinforcing agents
78containing non-metallic materials
80Fibres, filaments, whiskers, platelets, or the like
83Carbon fibres in a carbon matrix
C04B 38/045
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
38Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
04by dissolving-out added substances
045the dissolved-out substance being a monolitic element having approximately the same dimensions as the final article, e.g. a prepreg obtained by bonding together dissolvable particles
C04B 2235/6562
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
656characterised by specific heating conditions during heat treatment
6562Heating rate
C04B 2235/6567
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
656characterised by specific heating conditions during heat treatment
6567Treatment time
C04B 2235/658
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2235Aspects relating to ceramic starting mixtures or sintered ceramic products
65Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
658Atmosphere during thermal treatment
Anmelder NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY OF PLA
中国人民解放军国防科技大学
Erfinder FENG JIAN
冯坚
FENG JUNZONG
冯军宗
ZHANG HAIMING
张海明
LI LIANGJUN
李良军
JIANG YONGGANG
姜勇刚
Vertreter 长沙中科启明知识产权代理事务所(普通合伙) 43226
Titel
(EN) Preparation method for carbon fiber reinforced nanoporous carbon heat-insulating composite material
(ZH) 一种炭纤维增强纳米孔炭隔热复合材料的制备方法
Zusammenfassung
(EN)
The invention discloses a preparation method for a carbon fiber reinforced nanoporous carbon heat-insulating composite material. The objective of the invention is to provide a method with advantages of short period, safety, reliability and small volume shrinkage in the process of carbonization for preparation of the carbon fiber reinforced nanoporous carbon heat-insulating composite material. According to a technical scheme of the invention, the preparation method comprises the following steps: with phenols and aldehydes as reaction monomers, methanol as a solvent, hexamethylene tetramine as acatalyst, zinc chloride as molten salt with the actions of a pore-foaming agent and supporting, and carbon fiber as a reinforcement, mixing raw materials so as to prepare a phenolic aldehyde sol, impregnating a carbon fiber preform in the phenolic aldehyde sol, after the sol is changed into a gel, carrying out aging at a room temperature, then carrying out carbonization and pyrolysis, carrying out washing so as to remove salt, and carrying out drying at normal pressure so as to obtain the carbon fiber reinforced nanoporous carbon heat-insulating composite material. The preparation method provided by the invention has the advantages of short period, safety, reliability and small volume shrinkage in the process of carbonization; and a material prepared by using the preparation method provided by the invention has small density, can resist a temperature of 2000 DEG C, does not generate the phenomenon of cracking, and facilitates preparation of a special-shaped component.

(ZH)
本发明公开了一种炭纤维增强纳米孔炭隔热复合材料的制备方法,目的是提供一种周期短、安全可靠、炭化过程体积收缩小的炭纤维增强纳米孔炭隔热复合材料的制备方法。技术方案是以酚类和醛类为反应单体,甲醇为溶剂,六次甲基四胺为催化剂,氯化锌作为熔盐起到致孔剂和支撑的作用,炭纤维作为增强体,首先经过原料混合制成酚醛溶胶,用酚醛溶胶浸渍炭纤维预制件,溶胶变成凝胶后,在室温下老化后炭化裂解,最后水洗除盐、常压干燥得到炭纤维增强纳米孔炭隔热复合材料。本发明周期短、安全可靠、炭化过程体积收缩小,采用本发明制备的材料密度小,耐温达2000℃,且不会出现开裂的现象,有利于制备异形构件。