UST100303I4 - Production of carbon fibers by the direct carbonization of polybenzimidazole fiber - Google Patents

Production of carbon fibers by the direct carbonization of polybenzimidazole fiber Download PDF

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Publication number
UST100303I4
UST100303I4 US06/109,582 US10958280A UST100303I4 US T100303 I4 UST100303 I4 US T100303I4 US 10958280 A US10958280 A US 10958280A US T100303 I4 UST100303 I4 US T100303I4
Authority
US
United States
Prior art keywords
fibrous material
carbon fibers
fibrous
polybenzimidazole
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US06/109,582
Inventor
Robert Dix
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US06/109,582 priority Critical patent/UST100303I4/en
Application granted granted Critical
Publication of UST100303I4 publication Critical patent/UST100303I4/en
Pending legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
    • D01F9/24—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

An improved process is provided for readily transforming a relatively low denier (i.e. 0.5 to 10 denier per filament) polybenzimidazole fibrous material to a carbonaceous fibrous material which contains at least 90 percent carbon by weight. The polybenzimidazole fibrous material initially is reacted with a solution of an acid (as described) to form a polybenzimidazonium salt, and the fibrous material subsequently is heated in a non-oxidizing atmosphere to form the carbonaceous fibrous material which retains the original fibrous configuration intact. A preferred acid solution for use in the present process is a dilute solution of sulfuric acid. The resulting carbon fibers are useful as fibrous reinforcement in the resinous or metallic matrix material.
US06/109,582 1980-01-04 1980-01-04 Production of carbon fibers by the direct carbonization of polybenzimidazole fiber Pending UST100303I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/109,582 UST100303I4 (en) 1980-01-04 1980-01-04 Production of carbon fibers by the direct carbonization of polybenzimidazole fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/109,582 UST100303I4 (en) 1980-01-04 1980-01-04 Production of carbon fibers by the direct carbonization of polybenzimidazole fiber

Publications (1)

Publication Number Publication Date
UST100303I4 true UST100303I4 (en) 1981-02-03

Family

ID=22328436

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/109,582 Pending UST100303I4 (en) 1980-01-04 1980-01-04 Production of carbon fibers by the direct carbonization of polybenzimidazole fiber

Country Status (1)

Country Link
US (1) UST100303I4 (en)

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