CN1292394A - Preparation method of carbon fibre reinforced cast nylon composite material - Google Patents
Preparation method of carbon fibre reinforced cast nylon composite material Download PDFInfo
- Publication number
- CN1292394A CN1292394A CN 00129950 CN00129950A CN1292394A CN 1292394 A CN1292394 A CN 1292394A CN 00129950 CN00129950 CN 00129950 CN 00129950 A CN00129950 A CN 00129950A CN 1292394 A CN1292394 A CN 1292394A
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- CN
- China
- Prior art keywords
- carbon fibre
- add
- carbon fiber
- composite material
- fibre reinforced
- 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.)
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- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 18
- 239000000835 fiber Substances 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000004677 Nylon Substances 0.000 title claims description 24
- 229920001778 nylon Polymers 0.000 title claims description 24
- 239000002131 composite material Substances 0.000 title claims description 16
- 238000002360 preparation method Methods 0.000 title claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 19
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical group O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 27
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 25
- 239000004917 carbon fiber Substances 0.000 claims description 25
- 239000012190 activator Substances 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 238000002203 pretreatment Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 230000003213 activating effect Effects 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 239000000178 monomer Substances 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention belongs to the field of material science and technology, and includes the following steps: pretreatment of carbon fibre, soaking carbon fibre to be treated in nitric acid solution, then using sodium hydroxide solution and water to fully wash until its pH value is not acidic, uniformly mixing the treated carbon fibre with caprolactam monomer, placing the obtained mixture into a container, heating and making the material melt, evacuating said container and dehydrating, adding catalyst soldium hydroxide, heating and melting, adding activating agent tolylene diisocyanate, and pouring the above-mentioned material into mould, heat-insulating and demoulding so as to obtain the invented product with excellent mechanical properties of higher tensile-strength and bending strength and raised frictional property.
Description
The invention belongs to materials science field, relate to the preparation method of cast composite nylon material.
Monomer cast nylon is under normal pressure fused raw material caprolactam monomer to be made catalyzer with alkaline material, with auxiliary agents such as activators, directly inject the mould that is preheating to certain temperature, material carries out polyreaction soon in mould, condenses into the tough and tensile solid blank of white.The characteristics of monomer cast nylon are: light weight, density are generally 1.15～1.16; Vibration and noise reducing; Good rebound resilience; Have wear resistance and self lubricity, be suitable under the operating mode that can not add lubricant, using; The favorable mechanical performance, physical strength is more much higher than common nylon, good toughness, shock resistance, antifatigue.Monomer cast nylon obtains to use at a lot of industrial circles as the wear-resistant self-lubricating engineering plastics, as large-scale ball valve seal ring and the axle sleeve on oil, the natural gas transmission pipeline, the piston body of rig pump, various drive mechanism parts such as bearing shell, axle sleeve, ship propeller, weaving loom shuttle, gear etc.Along with the expansion of monomer cast nylon practical application, to its demands for higher performance.Particularly its low physical strength of comparing with ferrous materials is difficult to satisfy the requirement of large-scale workpiece to material property.Therefore, when keeping its good characteristics, how further to improve its mechanical property, exploitation material potential becomes and enlarges its key in application.
The objective of the invention is to propose a kind of preparation method of carbon fibre reinforced cast nylon composite material, make this kind matrix material not only have the superperformance characteristics of monomer cast nylon, and have a tensile strength higher than monomer cast nylon, mechanical properties such as flexural strength, tribological property also is improved, thereby can go out the higher workpiece of supporting capacity with this material preparation.
The preparation method of the carbon fibre reinforced cast nylon composite material that the present invention proposes comprises following each step:
(1) pre-treatment of carbon fiber: pending amount of carbon fiber is immersed in the salpeter solution of 50-60%, takes out the back, do not show acid until the pH value with sodium hydroxide solution and water thorough washing;
(2) carbon fiber and the caprolactam monomer after will handling mixes, and wherein the add-on of carbon fiber is 5-15%, puts into the container internal heating and makes material melting, and container vacuumizes dehydration;
(3) remove vacuum, add catalyzer sodium hydroxide, add-on: with monomeric mol ratio be 0.002～0.003: 1, be heated to fusing;
(4) remove vacuum, add the activator tolylene diisocyanate, add-on: with monomeric mol ratio be 0.002～0.003: 1;
(5) be cast in the mould that is preheated to 160-200 ℃, the insulation back demoulding promptly obtains carbon fibre reinforced cast nylon composite material.
The fiber average aspect ratio of said carbon fiber can be 10-15: 1.
The said vacuum tightness that vacuumizes can be 10
-1～10
-3Pa.
Matrix material with the inventive method preparation, its Main Feature is: tensile strength has improved 30%, reach the 90MPa-100MPa flexural strength and improved 20%, reach 140MPa-160MPa, bending elastic modulus reaches 3600MPa-4500MPa, hardness has improved 20%, and mechanical property is greatly improved than monomer cast nylon; Tribological property has also had tangible improvement, and frictional coefficient reduces, and wear rate reduces, and good abrasion resistance is arranged.
Embodiment one:
Prepare carbon fiber by following step and strengthen the monomer cast composite nylon material:
(1) pre-treatment of carbon fiber: get the carbon fiber that desire is handled, it is immersed in 50% the salpeter solution, take out after a hour, use sodium hydroxide solution and water thorough washing then, do not show acid until pH value.
(2) carbon fiber and the caprolactam monomer after will handling mixes, and wherein the add-on of carbon fiber is 5%, and average aspect ratio 10: 1 is put into about container internal heating to 120 ℃, makes material melting, and container vacuumizes dehydration, and vacuum tightness is 10
-1Pa;
(3) open valve, remove vacuum, add catalyzer sodium hydroxide, add-on: with monomeric mol ratio be 0.002: 1, be evacuated to 10
-1Pa is heated to 130 ℃;
(4) open valve, remove vacuum, add the activator tolylene diisocyanate, add-on: with monomeric mol ratio be 0.002: 1;
(5) be cast to rapidly in the mould that has been preheated to 160 ℃, be incubated the demoulding after 5 minutes, be carbon fibre reinforced cast nylon composite material of the present invention.
Embodiment two:
Prepare carbon fiber by following step and strengthen the monomer cast composite nylon material:
(1) pre-treatment of carbon fiber: the carbon fiber that desire is handled is immersed in 55% the salpeter solution, takes out after one hour, uses sodium hydroxide solution and water thorough washing then, does not show acidity until pH value.
(2) carbon fiber and the caprolactam monomer after will handling mixes, and wherein the add-on of carbon fiber is 10%, and average aspect ratio 10: 1 is put into about container internal heating to 120 ℃, makes material melting, and container vacuumizes dehydration, and vacuum tightness is 10
-2Pa;
(3) open valve, remove vacuum, add catalyzer sodium hydroxide, add-on: with monomeric mol ratio be 0.002: 1, be evacuated to 10
-2Pa is heated to 130 ℃;
(4) open valve, remove vacuum, add the activator tolylene diisocyanate, add-on: with monomeric mol ratio be 0.002: 1;
(5) be cast to rapidly in the mould that has been preheated to 165 ℃, be incubated the demoulding after 5 minutes, be carbon fibre reinforced cast nylon composite material of the present invention.
Embodiment three:
Prepare carbon fiber by following step and strengthen the monomer cast composite nylon material:
(1) pre-treatment of carbon fiber: the carbon fiber that desire is handled is immersed in 60% the salpeter solution, takes out after one hour, uses sodium hydroxide solution and water thorough washing then, does not show acidity until pH value.
(2) carbon fiber and the caprolactam monomer after will handling mixes, and wherein the add-on of carbon fiber is 15%, and average aspect ratio 10: 1 is put into about container internal heating to 120 ℃, makes material melting, and container vacuumizes dehydration, and vacuum tightness is 10
-3Pa;
(3) open valve, remove vacuum, add catalyzer sodium hydroxide, add-on: with monomeric mol ratio be 0.003: 1, be evacuated to 10
-3Pa is heated to 130 ℃;
(4) open valve, remove vacuum, add the activator tolylene diisocyanate, add-on: with monomeric mol ratio be 0.003: 1;
(5) be cast to rapidly in the mould that has been preheated to 170 ℃, be incubated the demoulding after 5 minutes, be carbon fibre reinforced cast nylon composite material of the present invention.
Claims (3)
1, a kind of preparation method of carbon fibre reinforced cast nylon composite material comprises following each step:
(1) pre-treatment of carbon fiber: pending amount of carbon fiber is immersed in the salpeter solution of 50-60%, takes out the back, do not show acid until the pH value with sodium hydroxide solution and water thorough washing;
(2) carbon fiber and the caprolactam monomer after will handling mixes, and wherein the add-on of carbon fiber is 5-15%, puts into the container internal heating and makes material melting, and container vacuumizes dehydration;
(3) remove vacuum, add catalyzer sodium hydroxide, add-on: with monomeric mol ratio be 0.002～0.003: 1, be heated to fusing;
(4) remove vacuum, add the activator tolylene diisocyanate, add-on: with monomeric mol ratio be 0.002～0.003: 1;
(5) be cast in the mould that is preheated to 160-200 ℃, the insulation back demoulding promptly obtains carbon fibre reinforced cast nylon composite material.
2, the preparation method of carbon fibre reinforced cast nylon composite material as claimed in claim 1 is characterized in that, the fiber average aspect ratio 10-15 of said carbon fiber: 1.
3, the preparation method of carbon fibre reinforced cast nylon composite material as claimed in claim 1 is characterized in that, the said vacuum tightness that vacuumizes is 10
-1～10
-3Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129950A CN1108334C (en) | 2000-10-20 | 2000-10-20 | Preparation method of carbon fibre reinforced cast nylon composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129950A CN1108334C (en) | 2000-10-20 | 2000-10-20 | Preparation method of carbon fibre reinforced cast nylon composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1292394A true CN1292394A (en) | 2001-04-25 |
| CN1108334C CN1108334C (en) | 2003-05-14 |
Family
ID=4593858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00129950A Expired - Fee Related CN1108334C (en) | 2000-10-20 | 2000-10-20 | Preparation method of carbon fibre reinforced cast nylon composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1108334C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398581C (en) * | 2003-11-20 | 2008-07-02 | 上海杰事杰新材料股份有限公司 | Synthesis method of nylon 6 |
| CN101235197B (en) * | 2007-02-01 | 2010-06-09 | 上海化工研究院天地科技发展有限公司 | Plasticizing modifying treatment method for mould nylon |
| CN101152747B (en) * | 2006-09-27 | 2010-09-08 | 上海杰事杰新材料股份有限公司 | Method for producing product by combination of continuous fibre reinforced nylon and metal |
| CN102049866A (en) * | 2009-11-04 | 2011-05-11 | 合肥杰事杰新材料有限公司 | Method for manufacturing bicycle frame by using reinforced nylon material |
| CN102382458A (en) * | 2010-09-03 | 2012-03-21 | 谷荒 | High-intensity, wear-resistant and self-lubricating oil-bearing modified cast nylon pulley and production method thereof |
| CN102470559A (en) * | 2009-07-08 | 2012-05-23 | 巴斯夫欧洲公司 | Method for producing fiber-reinforced composite materials from polyamide 6 and copolyamides made of polyamide 6 and polyamide 12 |
| CN102493184A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Interface-enhanced carbon fiber/polycaprolactam composite material and preparation method thereof |
| CN102532524A (en) * | 2010-12-28 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | Nylon chopped fiber/cast nylon composite material and preparation method thereof |
| CN103509336A (en) * | 2012-10-18 | 2014-01-15 | 中国科学院化学研究所 | Monomer casting (MC) nylon composite material and preparation method thereof |
| CN104894843A (en) * | 2015-05-22 | 2015-09-09 | 哈尔滨唐风科技发展有限公司 | Surface treatment method for carbon fiber production waste used in wood-plastic composite |
| CN105440669A (en) * | 2015-12-22 | 2016-03-30 | 合肥仲农生物科技有限公司 | Modified casting nylon composite material |
| CN106589929A (en) * | 2016-11-16 | 2017-04-26 | 马鞍山市华能电力线路器材有限责任公司 | Flame-retarding nylon composite for acid-base resisting electric power fitting and manufacturing method thereof |
| CN106589928A (en) * | 2016-11-16 | 2017-04-26 | 马鞍山市华能电力线路器材有限责任公司 | Novel wearable flame-retardant nylon composite material for electric power fittings and manufacturing method thereof |
| CN108203506A (en) * | 2018-02-01 | 2018-06-26 | 东华大学 | A kind of MC nylon reinforced with carbon fiber thermoplastic composite and preparation method thereof |
| CN112851980A (en) * | 2021-01-11 | 2021-05-28 | 东莞塘厦怡丰运动科技有限公司 | Recycled carbon fiber reinforced thermoplastic polyurethane elastomer and preparation method thereof |
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| CN1333012C (en) * | 2005-06-22 | 2007-08-22 | 中国矿业大学 | Enhancend friction type nylon composite and its preparation tech. |
| CN111941877A (en) | 2019-05-14 | 2020-11-17 | 科思创德国股份有限公司 | Method for preparing polyurethane composite material by vacuum infusion process |
Family Cites Families (2)
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|---|---|---|---|---|
| CN1062356A (en) * | 1991-12-12 | 1992-07-01 | 杨思会 | A kind of processing method of heterogeneous modification of nylon |
| CN1157539C (en) * | 1999-01-28 | 2004-07-14 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
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2000
- 2000-10-20 CN CN00129950A patent/CN1108334C/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100398581C (en) * | 2003-11-20 | 2008-07-02 | 上海杰事杰新材料股份有限公司 | Synthesis method of nylon 6 |
| CN101152747B (en) * | 2006-09-27 | 2010-09-08 | 上海杰事杰新材料股份有限公司 | Method for producing product by combination of continuous fibre reinforced nylon and metal |
| CN101235197B (en) * | 2007-02-01 | 2010-06-09 | 上海化工研究院天地科技发展有限公司 | Plasticizing modifying treatment method for mould nylon |
| CN102470559A (en) * | 2009-07-08 | 2012-05-23 | 巴斯夫欧洲公司 | Method for producing fiber-reinforced composite materials from polyamide 6 and copolyamides made of polyamide 6 and polyamide 12 |
| CN102049866A (en) * | 2009-11-04 | 2011-05-11 | 合肥杰事杰新材料有限公司 | Method for manufacturing bicycle frame by using reinforced nylon material |
| CN102049866B (en) * | 2009-11-04 | 2014-04-02 | 合肥杰事杰新材料股份有限公司 | Method for manufacturing bicycle frame by using reinforced nylon material |
| CN102382458A (en) * | 2010-09-03 | 2012-03-21 | 谷荒 | High-intensity, wear-resistant and self-lubricating oil-bearing modified cast nylon pulley and production method thereof |
| CN102532524B (en) * | 2010-12-28 | 2015-05-13 | 合肥杰事杰新材料股份有限公司 | Nylon chopped fiber/cast nylon composite material and preparation method thereof |
| CN102532524A (en) * | 2010-12-28 | 2012-07-04 | 合肥杰事杰新材料股份有限公司 | Nylon chopped fiber/cast nylon composite material and preparation method thereof |
| CN102493184A (en) * | 2011-12-12 | 2012-06-13 | 中国科学院宁波材料技术与工程研究所 | Interface-enhanced carbon fiber/polycaprolactam composite material and preparation method thereof |
| CN102493184B (en) * | 2011-12-12 | 2014-03-26 | 中国科学院宁波材料技术与工程研究所 | Interface-enhanced carbon fiber/polycaprolactam composite material and preparation method thereof |
| CN103509336A (en) * | 2012-10-18 | 2014-01-15 | 中国科学院化学研究所 | Monomer casting (MC) nylon composite material and preparation method thereof |
| CN104894843A (en) * | 2015-05-22 | 2015-09-09 | 哈尔滨唐风科技发展有限公司 | Surface treatment method for carbon fiber production waste used in wood-plastic composite |
| CN105440669A (en) * | 2015-12-22 | 2016-03-30 | 合肥仲农生物科技有限公司 | Modified casting nylon composite material |
| CN106589929A (en) * | 2016-11-16 | 2017-04-26 | 马鞍山市华能电力线路器材有限责任公司 | Flame-retarding nylon composite for acid-base resisting electric power fitting and manufacturing method thereof |
| CN106589928A (en) * | 2016-11-16 | 2017-04-26 | 马鞍山市华能电力线路器材有限责任公司 | Novel wearable flame-retardant nylon composite material for electric power fittings and manufacturing method thereof |
| CN108203506A (en) * | 2018-02-01 | 2018-06-26 | 东华大学 | A kind of MC nylon reinforced with carbon fiber thermoplastic composite and preparation method thereof |
| CN112851980A (en) * | 2021-01-11 | 2021-05-28 | 东莞塘厦怡丰运动科技有限公司 | Recycled carbon fiber reinforced thermoplastic polyurethane elastomer and preparation method thereof |
| CN112851980B (en) * | 2021-01-11 | 2021-08-17 | 东莞塘厦怡丰运动科技有限公司 | Recycled carbon fiber reinforced thermoplastic polyurethane elastomer and preparation method thereof |
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| Publication number | Publication date |
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| CN1108334C (en) | 2003-05-14 |
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