CN1108334C - 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
- CN1108334C CN1108334C CN00129950A CN00129950A CN1108334C CN 1108334 C CN1108334 C CN 1108334C CN 00129950 A CN00129950 A CN 00129950A CN 00129950 A CN00129950 A CN 00129950A CN 1108334 C CN1108334 C CN 1108334C
- Authority
- CN
- China
- Prior art keywords
- carbon fiber
- add
- composite material
- cast nylon
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention belongs to the technical field of material science, which comprises the following steps that during carbon fiber pretreatment, carbon fiber to be treated is soaked in a nitric acid solution, and then, the carbon fiber is fully washed by a sodium hydroxide solution and water until the pH value is not in acidity; the treated carbon fiber and caprolactam monomers are uniformly mixed and put in a container to be heated for melting the material; during container vacuum pumping and dehydration, sodium hydroxide as a catalyst is added into the container to be heated until melting; toluene diisocyanate as an activator is added and cast into a mould, and demoulding can be carried out after thermal insulation. Compared with cast nylon, the carbon fiber reinforced cast nylon composite material of the present invention has higher mechanical properties, such as tensile strength, bending strength, etc., and the tribology performance is also enhanced.
Description
Technical field
The invention belongs to materials science field, relate to the preparation method of cast composite nylon material.
Background technology
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.
Summary of the invention
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 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 and monomeric mol ratio are 0.002～0.003: 1, vacuumize and are heated to fusing;
(4) remove vacuum and add the activator tolylene diisocyanate again, add-on and monomeric mol ratio are 0.002～0.003: 1, become the matrix material of molten state;
(5) matrix material with this molten state is cast in the mould that is preheated to 160-200 ℃, and 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 90MPa-100MPa, flexural strength has improved 20%, reach 140MPa-160MPa, bending elastic modulus reaches 3600MPa-4500MPa, and 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
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 acidity 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 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 and monomeric mol ratio are 0.002～0.003: 1, vacuumize and are heated to fusing;
(4) remove vacuum and add the activator tolylene diisocyanate again, add-on and monomeric mol ratio are 0.002～0.003: 1, become the matrix material of molten state;
(5) matrix material with this molten state is cast in the mould that is preheated to 160-200 ℃, and 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 CN1292394A (en) | 2001-04-25 |
| CN1108334C true 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333012C (en) * | 2005-06-22 | 2007-08-22 | 中国矿业大学 | Enhancend friction type nylon composite and its preparation tech. |
| 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 |
| EP3738755A1 (en) | 2019-05-14 | 2020-11-18 | Covestro Deutschland AG | Method for preparing a polyurethane composite by a vacuum infusion process |
Families Citing this family (14)
| 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 |
| 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 |
| 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 |
| CN103509336B (en) * | 2012-10-18 | 2015-09-23 | 中国科学院化学研究所 | MC nylon composite materials and preparation method thereof |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062356A (en) * | 1991-12-12 | 1992-07-01 | 杨思会 | A kind of processing method of heterogeneous modification of nylon |
| CN1262394A (en) * | 1999-01-28 | 2000-08-09 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
-
2000
- 2000-10-20 CN CN00129950A patent/CN1108334C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062356A (en) * | 1991-12-12 | 1992-07-01 | 杨思会 | A kind of processing method of heterogeneous modification of nylon |
| CN1262394A (en) * | 1999-01-28 | 2000-08-09 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333012C (en) * | 2005-06-22 | 2007-08-22 | 中国矿业大学 | Enhancend friction type nylon composite and its preparation tech. |
| 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 |
| EP3738755A1 (en) | 2019-05-14 | 2020-11-18 | Covestro Deutschland AG | Method for preparing a polyurethane composite by a vacuum infusion process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1292394A (en) | 2001-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1108334C (en) | Preparation method of carbon fibre reinforced cast nylon composite material | |
| CN1098886C (en) | Preparation of cast composite nylon material with high-content reinforcing glass fiber | |
| CN1095480C (en) | Preparation of silicon carbide grain-filling cast composite nylon material | |
| Shibata et al. | Tribological application of MMC for reducing engine weight | |
| CN104744926A (en) | High wear resistant and high self-lubrication continuous long fiber reinforced high temperature resistant nylon composite material and preparation method thereof | |
| CN101704313A (en) | Structural high-damping fiber-reinforced composite | |
| CN1718421A (en) | Preparation method of composite material of fiber and granular synergistic reinforced pouring nylon | |
| Jiao et al. | Surface modification of Kevlar improves the mechanical and friction properties of Kevlar/low-carbon steel composite structures | |
| CN112458789B (en) | Rubber resin double-matrix wet-type friction material and preparation method thereof | |
| CN101323681A (en) | Rubber alloy material and method for manufacturing drive member using the same | |
| CN113174757B (en) | PBO fiber reinforced self-lubricating liner composite material and preparation method thereof | |
| CN1847290A (en) | Whisker reinforced resin-base composite friction material and its prepn process | |
| CN112277399A (en) | Basalt fiber-based self-lubricating fabric liner material and preparation method thereof | |
| CN106566042A (en) | Corrosion-resistant carbon fiber resin-based composite material used for pump | |
| CN1487021A (en) | Prepn of RE-modified composite aramid fiber/PTFE material | |
| CN102604079B (en) | Nano plastic alloy material and preparation method thereof and water generator nano plastic alloy parts and manufacturing method thereof | |
| CN100341942C (en) | Method for preparing poly(p-phenylene benzobisoxazole)/polyimide composite material | |
| CN1217814C (en) | Double-pipe line hydraulic brake main cylinder | |
| CN100362052C (en) | Process for preparing composite of rare earth modified glass fibre/polyimide | |
| CN105017615A (en) | High-softening-point ultra-high-molecular-weight polyethylene alloy material and preparation method thereof | |
| CN101353433A (en) | Preparation of poly(p-phenylene-benzobisoxazole) / polytetrafluorethylene composite material | |
| JPH0912276A (en) | Slide shoe for outdoor device | |
| CN201679939U (en) | Carbon fiber reinforced composite material transmission belt pulley | |
| CN1190305C (en) | Plastic cover material of diesel engine | |
| CN100338112C (en) | Treating agent for rubber-reinforcing glass fiber, rubber-reinforcing cord made with the same, and rubber product |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |