DE2016735A1 - Increasing the extensibility of carbon - fibres process and application - Google Patents
Increasing the extensibility of carbon - fibres process and applicationInfo
- Publication number
- DE2016735A1 DE2016735A1 DE19702016735 DE2016735A DE2016735A1 DE 2016735 A1 DE2016735 A1 DE 2016735A1 DE 19702016735 DE19702016735 DE 19702016735 DE 2016735 A DE2016735 A DE 2016735A DE 2016735 A1 DE2016735 A1 DE 2016735A1
- Authority
- DE
- Germany
- Prior art keywords
- carbon fibers
- metal
- coated
- extensibility
- carbon
- 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
Links
- 238000000034 method Methods 0.000 title claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 4
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims abstract 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 23
- 239000004917 carbon fiber Substances 0.000 claims description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- 229920000297 Rayon Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06Q—DECORATING TEXTILES
- D06Q1/00—Decorating textiles
- D06Q1/04—Decorating textiles by metallising
-
- 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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
- D01F11/12—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with inorganic substances ; Intercalation
- D01F11/127—Metals
Abstract
Description
Verfahren zur Erhöhung der Dehnbarkeit von Kohlenstoff-Fasern und Verwendung derselben Die vorliegende Erfindung betrifft ein Verfahren zur Erhöhung der Dehnbarkeit von Kohlenstoff-Fasern und eine Verwendung derselben.Process for increasing the ductility of carbon fibers and Use thereof The present invention relates to a method of increasing the extensibility of carbon fibers and a use thereof.
Die bekannten Kohlenstoff-Fasern auf Polyakrylnitril- oder Rayon-Basis weisen den Nachteil aui, dass sie eine sehr geringe Dehnbarkeit aufweisen, was ftlr viele Anwendungszwecke unzweckwmässig ist.The well-known carbon fibers based on polyacrylonitrile or rayon have the disadvantage that they have a very low extensibility, which is true for is inappropriate for many purposes.
Zweck der Erfindung ist die Schaffung eines Verfahrens zur Herstellung von beschichteten Kohlenstoff-Fasern, welche diesen Nachteil nicht aufweisen.The purpose of the invention is to provide a method of manufacture of coated carbon fibers, which do not have this disadvantage.
Das erfindungsgemässe Verfahren ist dadurch gekennzeichnet, dass man die Kohlenstoff-Fasern kontinuierlich mit Metall beschichtet, derart, dass das letzter. physikalisch oder chemisch mit der Oberfläche der ersteren verbunden wird.The inventive method is characterized in that one the carbon fibers are continuously coated with metal, so that the latter. physically or chemically bonded to the surface of the former.
Vorzugsweise beschichtet man die Kohlenstoff-Fasern derart mit Metall, dass die Schichtdicke nicht grösser als der Faserdurchmesser wird.The carbon fibers are preferably coated with metal in such a way that that the layer thickness is not greater than the fiber diameter.
Es ist zweckmässig, dass man Kohlenstoff-Fasern verwendet, deren Ausgangsmaterial Polyakrylnitril ist.It is advisable to use carbon fibers, their starting material Is polyacrylonitrile.
Gegenstand der Erfindung ist ferner eine Verwendung der erfindung£-gemäss hergestellten Fasern zur Verstärkung eines nichtmetallischen Werkstoffes.The invention also relates to a use of the invention according to the invention manufactured fibers for reinforcement of a non-metallic material.
Nachstehend wird die Erfindung anhand der Zeichnung näher erläutert.The invention is explained in more detail below with reference to the drawing.
Wie aus dem in der Zeichnung dargestellten Spannungs-Dehnungs-Diagramm ersichtlich, verläuft die Dehnung 6 der bekannten handelsüblichen unbeschichteten Kohlenstoff-Fasern gemäss der Linie a proportional zur Spannung 8 und ist sehr gering.As from the stress-strain diagram shown in the drawing can be seen, the elongation 6 runs the known, commercially available uncoated Carbon fibers according to the line a proportional to the tension 8 and is very low.
Werde die Kohlenstoff-Fasern nun beispielsweise mit Nickel völlig Uberzogen, und zwar derart, dass das Nickel sich mit der Oberfläche der Kohlenstoff-Fasern verbindet, dann verläuft die Spannungs-Dehnungs-Kurve bei höheren Zugspannungen wie in der Zeichnung mit b strichpunktiert eingezeichnet, Der Beginn der plastischen Verformung in Abhängigkeit von der Spannung ist vom Verhältnis der Dicke der Nickel schicht zum Durchmesser der Kohlenstoff-Faser abhängig. Mit grösserer Dicke der Nickel schicht beginnt die plastische Verformung früher als bei geringerer Dicke. Es zeigt stich auch, dass die totale Dehnung bei 13rauch umso grösser ist, Je früher die plastische Verformung beginnt.Now become the carbon fibers completely with nickel, for example Plated in such a way that the nickel is coated with the surface of the carbon fibers connects, then the stress-strain curve runs at higher tensile stresses as drawn in dash-dotted lines with b in the drawing, the beginning of the plastic Deformation as a function of stress is on the ratio of the thickness of the nickel layer depends on the diameter of the carbon fiber. The greater the thickness of the Nickel layer starts plastic deformation earlier than with a smaller thickness. It also shows that the total elongation with smoke is greater, the earlier the plastic deformation begins.
Die derart beschichteten Kohlenstoff-Fasern zeigen ähnliche plastische Eigenschaften wie ein homogenes verformbares Metall, nämlich Relaxation und bei zyklischer Belastung die Verschiebung der Streckgrenze auf das Spannungsniveau das im vorangehenden Zyklus erreicht wurde, Da bei Anwendung des erfindungsgemässen Verfahrens die Dehnbarkeit der derart behandelten Kohlenstoff-Fasern vergrössert wirdr sind solche Fasern besonders zur Verbesserung der mechanischen Eigenschaften von nichtmetallischen Werkstoffen, insbesondere Kunststoffen geeignet, da dadurch die Bruchdehnung dieser Materialien erhöht wird.The carbon fibers coated in this way show similar plasticity Properties like a homogeneous deformable metal, namely relaxation and at cyclic loading the shift of the yield point to the stress level das was achieved in the previous cycle, Since when using the inventive Process increases the extensibility of the carbon fibers treated in this way Such fibers are especially used to improve mechanical properties of non-metallic materials, especially plastics, as this makes them suitable the elongation at break of these materials is increased.
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH9770A CH517663A (en) | 1970-01-07 | 1970-01-07 | Process for increasing the ductility of carbon fibers and using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2016735A1 true DE2016735A1 (en) | 1971-07-15 |
Family
ID=4179174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702016735 Pending DE2016735A1 (en) | 1970-01-07 | 1970-04-08 | Increasing the extensibility of carbon - fibres process and application |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH517663A (en) |
| DE (1) | DE2016735A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070606A (en) * | 1988-07-25 | 1991-12-10 | Minnesota Mining And Manufacturing Company | Method for producing a sheet member containing at least one enclosed channel |
| USRE34651E (en) * | 1988-02-19 | 1994-06-28 | Minnesota Mining And Manufacturing Company | Sheet-member containing a plurality of elongated enclosed electrodeposited channels and method |
-
1970
- 1970-01-07 CH CH9770A patent/CH517663A/en not_active IP Right Cessation
- 1970-04-08 DE DE19702016735 patent/DE2016735A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE34651E (en) * | 1988-02-19 | 1994-06-28 | Minnesota Mining And Manufacturing Company | Sheet-member containing a plurality of elongated enclosed electrodeposited channels and method |
| US5070606A (en) * | 1988-07-25 | 1991-12-10 | Minnesota Mining And Manufacturing Company | Method for producing a sheet member containing at least one enclosed channel |
Also Published As
| Publication number | Publication date |
|---|---|
| CH517663A (en) | 1972-01-15 |
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