CN100366419C - Production for gradient firilla reinforced polycarbonate composite materials by solution immersion - Google Patents
Production for gradient firilla reinforced polycarbonate composite materials by solution immersion Download PDFInfo
- Publication number
- CN100366419C CN100366419C CNB2005100322148A CN200510032214A CN100366419C CN 100366419 C CN100366419 C CN 100366419C CN B2005100322148 A CNB2005100322148 A CN B2005100322148A CN 200510032214 A CN200510032214 A CN 200510032214A CN 100366419 C CN100366419 C CN 100366419C
- Authority
- CN
- China
- Prior art keywords
- solvent
- solution
- polycarbonate
- gradient
- flaxen fiber
- 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
Landscapes
- Reinforced Plastic Materials (AREA)
Abstract
The present invention discloses a method for preparing gradient hemp fiber reinforced polycarbonate composite materials by a solution dipping method. The method is characterized in that polycarbonate is dissolved into a solvent to be made into a polycarbonate solution; hemp fiber reinforced bodies are dipped in the polycarbonate solution containing the solvent; hemp fibers dipped with the polycarbonate solution are molded through hot pressing to obtain hemp fiber reinforced polycarbonate composite materials with compact surfaces and loose middle parts. Compared with the existing melting plastic infiltrating methods, the method of the present invention reduces the temperature of infiltration and hot press molding, enhances the infiltrating performance of plastics, has little loss of natural fiber strength and has the advantages of little energy consumption, low cost, high quality, simple equipment, etc. Composite materials produced by the method can be recovered by a solvent cleaning method and can be recycled, and thus, resources can be saved.
Description
Technical field
The invention belongs to a kind of preparation method of natural fiber reinforced plastics.
Background technology
Along with the development of society, goods such as automobile adopt natural fiber reinforced plastics as interior material in a large number.The general moulding process of natural fiber reinforced thermoplastics composite is that the fusion matrix plastic is soaked into natural fiber enhancing body.So not only need complicated main equipment, energy consumption height, and forming temperature height, the natural fiber loss of strength is big under the hot conditions.In addition, the matrix plastic after the fusion is difficult to that natural fiber is strengthened body and realizes infiltration on the complete meaning, makes the natural-fiber composite material that resembles the unsaturated polyester resin reinforcing glass fibrous composite.
Summary of the invention
Technical problem to be solved by this invention is to overcome the prior art deficiency, provides a kind of forming temperature low, and the fibre strength loss is little, and energy consumption is low, and the solution dipping method that production cost is low prepares the method for gradient flaxen fiber polycarbafil composite.
Solution dipping method of the present invention prepares the method for gradient flaxen fiber polycarbafil composite, it is characterized in that:
1) the dissolution with solvents Merlon is made polycarbonate solution;
2) the above-mentioned polycarbonate solution dipping flaxen fiber that contains solvent is strengthened body;
3) hot-forming to the flaxen fiber that is impregnated with polycarbonate solution, obtain surface compact, middle loose flaxen fiber polycarbafil composite.
The concrete processing step of described method is as follows:
1) measure solvent, Merlon is added in the solvent, be stirred to dissolving fully, polycarbonate solution concentration is 50～300g/l;
2) measure polycarbonate solution, be sprinkling upon quickly and evenly on the bast fibre felt of drying, roll repeatedly on numb felt surface with cylinder and make polycarbonate solution evenly soak into numb felt;
3) will flood after good bast fibre felt upper and lower surface places flat board, hot-forming, forming temperature is 80～110 ℃, and pressure is 0.01～1MPa, and the time is 30～240 minutes, and forming process reclaims solvent.
Described solvent is the mixed solvent of solvent orange 2 A and B, and its proportioning is: the A solvent is 0～30%, and B solvent 100～70%, A solvent are 1, and 2-carrene, solvent B are 1, the 2-dichloroethanes.
Described bast fibre felt is one or more short the cutting after the numb felt that nonwoven acupuncture is made in ramie, ramie noil, the jute.
The present invention adopts the dissolution with solvents plastics to make solution impregnation natural fiber enhancing body, compare with the method that existing molten plastic soaks into, infiltration, hot-forming temperature have been reduced, strengthened the wellability of plastics, the natural fiber loss of strength is very little, and it is little to have energy consumption, advantages such as cost is low, quality is high, equipment is simple, and the composite that this method is produced can reclaim by the solvent clean method, and is recycling, saves resource.
The specific embodiment
Solvent orange 2 A is 1 among the present invention, and 2-carrene, solvent B are 1, and 2-dichloroethanes, PC are that Merlon is called for short.
Embodiment 1
Measure solvent B700ml and pour in the 1000ml volumetric flask, add 250gPC again, add a cover, be stirred to PC and dissolve fully.With solvent B the volumetric flask liquid level is adjusted to graduation mark, add a cover, stir, make the PC solution of 250g/l.
Measure the PC solution 750ml of 250g/l, be sprinkling upon the weak point that 180g dried fast, equably and cut on the ramee Nomex, roll repeatedly on numb felt surface with cylinder and make solution evenly soak into numb felt.
After the good bast fibre felt upper and lower surface of dipping is placed flat board, it is together placed 100 ℃ temperature field, on the good ramee felt of dipping, apply 0.08Mpa pressure.Heat-insulation pressure keeping demoulding after 40 minutes, the gradient-structure ramee felt that obtains gel content about 50% strengthens PC composite panel, density 0.5kg/dm
3
Embodiment 2
Measure solvent orange 2 A 150ml and pour in the 1000ml volumetric flask, the volumetric flask liquid level is adjusted to graduation mark, add a cover, stir, make mixed solvent with solvent B.Get the 700ml mixed solvent to going in the 1000ml volumetric flask, add 100gPC again, add a cover, be stirred to PC and dissolve fully.With mixed solvent the volumetric flask liquid level is adjusted to graduation mark, add a cover, stir, make the PC solution of 100g/l.
Measure the PC solution 750ml of 100g/l, be sprinkling upon the weak point that 180g dried fast, equably and cut on the ramie noil fiber needled felt, roll repeatedly on numb felt surface with cylinder and make solution evenly soak into numb felt.
After the good ramie noil fibrofelt upper and lower surface of dipping is placed flat board, it is together placed 100 ℃ temperature field, on the good ramee felt of dipping, apply 0.10Mpa pressure.Heat-insulation pressure keeping, the demoulding after 40 minutes obtains the gradient-structure ramee felt/PC composite panel of gel content about 20%, density 0.4Kg/dm
3
Embodiment 3
Measure solvent orange 2 A 300ml and pour in the 1000ml volumetric flask, the volumetric flask liquid level is adjusted to graduation mark, add a cover, stir, make mixed solvent with solvent B.Get the 700ml mixed solvent to going in the 1000ml volumetric flask, add 150gPC again, add a cover, be stirred to PC and dissolve fully.With mixed solvent the volumetric flask liquid level is adjusted to graduation mark, add a cover, stir, make the PC solution of 150g/l.
Measure the PC solution 750ml of 150g/l, be sprinkling upon the weak point that 180g dried fast, equably and cut on the jute flaxen fiber Nomex, roll repeatedly on numb felt surface with cylinder and make solution evenly soak into numb felt.
After the good jute felt upper and lower surface of dipping is placed flat board, it is together placed 100 ℃ temperature field, on the good ramee felt of dipping, apply 0.2Mpa pressure.Heat-insulation pressure keeping, the demoulding after 40 minutes obtains the gradient-structure ramee felt/PC composite panel of gel content about 30%, density 0.6Kg/dm
3
Claims (4)
1. a solution dipping method prepares the method for gradient flaxen fiber polycarbafil composite, it is characterized in that:
1) the dissolution with solvents Merlon is made polycarbonate solution;
2) the above-mentioned polycarbonate solution dipping flaxen fiber that contains solvent is strengthened body;
3) hot-forming to the flaxen fiber that is impregnated with polycarbonate solution, obtain surface compact, middle loose flaxen fiber polycarbafil composite.
2. solution dipping method according to claim 1 prepares the method for gradient flaxen fiber polycarbafil composite, it is characterized in that the concrete processing step of described method is as follows:
1) measure solvent, Merlon is added in the solvent, be stirred to dissolving fully, polycarbonate solution concentration is 50～300g/l;
2) measure polycarbonate solution, be sprinkling upon quickly and evenly on the bast fibre felt of drying, roll repeatedly on numb felt surface with cylinder and make polycarbonate solution evenly soak into numb felt;
3) will flood after good bast fibre felt upper and lower surface places flat board, hot-forming, forming temperature is 80～110 ℃, and pressure is 0.01～1MPa, and the time is 30～240 minutes, and forming process reclaims solvent.
3. solution dipping method according to claim 2 prepares the method for gradient flaxen fiber polycarbafil composite, it is characterized in that: described solvent is the mixed solvent of solvent orange 2 A and B, its proportioning is: the A solvent is 0～30%, B solvent 100～70%, the A solvent is 1,2-carrene, solvent B are 1, the 2-dichloroethanes.
4. prepare the method for gradient flaxen fiber polycarbafil composite according to claim 2 or 3 described solution dipping methods, it is characterized in that: bast fibre felt is one or more short the cutting after the numb felt that nonwoven acupuncture is made in ramie, ramie noil, the jute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100322148A CN100366419C (en) | 2005-09-30 | 2005-09-30 | Production for gradient firilla reinforced polycarbonate composite materials by solution immersion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100322148A CN100366419C (en) | 2005-09-30 | 2005-09-30 | Production for gradient firilla reinforced polycarbonate composite materials by solution immersion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1746013A CN1746013A (en) | 2006-03-15 |
| CN100366419C true CN100366419C (en) | 2008-02-06 |
Family
ID=36165803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100322148A Expired - Fee Related CN100366419C (en) | 2005-09-30 | 2005-09-30 | Production for gradient firilla reinforced polycarbonate composite materials by solution immersion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100366419C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585476B (en) * | 2012-02-21 | 2013-07-31 | 北京泰合源通生物科技有限公司 | Method for preparing glass fiber reinforced polycarbonate composite material |
| CN104774009B (en) * | 2015-03-25 | 2017-02-08 | 江苏省陶瓷研究所有限公司 | Method for preparation of cerium oxide ceramic fiber board by precursor impregnation process |
| CN110248788A (en) * | 2017-02-13 | 2019-09-17 | 沙特基础工业全球技术有限公司 | The method for producing fiber band |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1304348A2 (en) * | 2001-10-22 | 2003-04-23 | DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. | Molded article comprising fibres and method for manufacturing same |
-
2005
- 2005-09-30 CN CNB2005100322148A patent/CN100366419C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1304348A2 (en) * | 2001-10-22 | 2003-04-23 | DLR Deutsches Zentrum für Luft- und Raumfahrt e.V. | Molded article comprising fibres and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1746013A (en) | 2006-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104945854B (en) | Preparation method for short carbon fiber interlayer-reinforced fiber composite material | |
| CN100366419C (en) | Production for gradient firilla reinforced polycarbonate composite materials by solution immersion | |
| CN107012587A (en) | A kind of natural environmental-protective type flaxen fiber enhancing degradable polyalcohol group felt material and its composite board and preparation method | |
| CN109181226A (en) | A kind of rapid shaping epoxy chopped carbon fiber felt prepreg and its production technology | |
| CN102532872B (en) | Pultrusion production process for nylon-based fiber reinforced thermo plastics | |
| CN103286963A (en) | Preparation method of glass-reinforced plastic, and glass-reinforced plastic antenna housing and preparation method thereof | |
| CN111005229B (en) | Carbon fiber sizing agent and preparation method thereof | |
| CN108947574A (en) | A kind of preparation method of wheat straw fiber composite material | |
| CN105482141B (en) | A kind of continuous lod thermosetting resin based composites and preparation method thereof | |
| CN109986811A (en) | A kind of preparation facilities and preparation method of fiber reinforced thermoplastic resin composite material | |
| CN106810821A (en) | The high grade of transparency, nanofiber-filled amount high cooperate with the preparation method of enhanced composite | |
| CN107351469A (en) | Carbon fiber reinforced polymer-based composite board and preparation method thereof | |
| CN106995533A (en) | A kind of method that light-initiated in-situ polymerization prepares thermoplastic composite prepreg | |
| CN207207293U (en) | Carbon fiber reinforced polymer-based composite board | |
| CN109988410A (en) | A kind of fiber prepreg material and its preparation method and application | |
| CN1284741C (en) | Reinforced concrete structure plate and its prepn process | |
| CN103589137A (en) | Quickly molded polyurethane and hemp fiber composite plate based on HP-RTM (high pressure-resin transfer molding) technology | |
| CN104212142B (en) | The plant oil based unsaturated polyester composite of a kind of bamboo fiber enhancing modified | |
| CN101838471A (en) | Textile fibre reinforcement resin-based composite material and production process thereof | |
| CN107793687A (en) | A kind of anti-ageing wood-plastic packaging material and preparation method thereof | |
| CN105860198A (en) | Preparation method for producing fiber-based solidified plate by utilizing waste and old textiles | |
| CN109988351A (en) | A kind of prepreg and preparation method thereof comprising thermoplastic resin and thermosetting resin | |
| Hassanin et al. | Date palm fiber composite fabrication techniques | |
| CN206916387U (en) | A kind of flaxen fiber enhancing degradable polyalcohol group felt material and its composite board | |
| CN111269583A (en) | Composite fabric fiber floor and production process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20120930 |