CN109572001A - A kind of production technology of fiber reinforcement polyurethane composite material - Google Patents
A kind of production technology of fiber reinforcement polyurethane composite material Download PDFInfo
- Publication number
- CN109572001A CN109572001A CN201811608491.2A CN201811608491A CN109572001A CN 109572001 A CN109572001 A CN 109572001A CN 201811608491 A CN201811608491 A CN 201811608491A CN 109572001 A CN109572001 A CN 109572001A
- Authority
- CN
- China
- Prior art keywords
- section
- composite material
- gel
- fiber reinforcement
- polyurethane composite
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a kind of production technologies of fiber reinforcement polyurethane composite material, which is characterized in that using section gel-injection mould is tightened, by polyurethane resin raw material by the way that pultrude process, fiber reinforcement polyurethane composite material is made vertically；The deflation section refers to that any glue continues the existing cross section perpendicular to pultrude process lead in gel-injection mould in production process.Glue-injection box of the present invention is to tighten section, fully ensures that glue in glue-injection box without resident；It is corresponding, so that the flow direction of glue is conllinear with the trend of fiber in pultrusion process, sufficiently to meet the infiltration demand between fiber and resin by the way of vertical pultrusion, solve the problems, such as that traditional pultrude process fiber wetness difference and glue-injection box block up glue.
Description
Technical field
The present invention relates to a kind of production technologies of composite material, and in particular to a kind of fiber reinforcement polyurethane composite material
Production technology.
Background technique
With the development of science and technology field of polymer composite material grow rapidly, especially fibre reinforced composites just by
Step substitution traditional material, is used widely in each field.Fiber Reinforced Composite Materials mainly pass through pultrusion work
Continuous fiber or its fabric are carried out resin infiltration and make resin solidification by molding die heating, to produce composite material by skill
The process of profile.With the development of pultrude process, the polyurethane resin for pultrude process is developed, to realize fibre
The production of dimension enhancing compound polyurethane material.
Since polyurethane resin has reaction time short characteristic, after polyurethane resin bi-component mixing currently on the market
Pot life is below 50min, since pot life is short, proposes requirements at the higher level to fiber infiltration process system, this its
In include but is not limited to fibre with high-efficiency dynamic infiltrate.
Prior art is that two sections of processes of traditional pultrude process are integrated into one section of process, and the realization field of one section of process
Carried out by improved glue-injection box.Glue-injection box is prepared using common iron under normal conditions, by linear cutter, the control of glue-injection box
Point is the angle of whole cone angle, also has glue largely resident in glue-injection box.
When conventionally produced, resin adhesive liquid is on the one hand mobile with the fibrous material of movement, on the other hand with gravity
Influence flow downward.When the fiber area that resin touches is smaller, resin is fewer with the mobile amount of fiber.With gel-injection mould
The reduction of size, the spacing of fiber also reduce therewith, also result in the fiber of glue only contact surface, and rich glue can be direct
Gel-injection mould bottom is flowed to along fiber surface, then reflux generates waste.It is fine when there is the case where serious reflux waste critical value
The total sectional area of dimension is about 12% or so of glue-injection box sectional area.
In addition, for fiber in infiltration, spacing and glass fibre between fiber rub to gel-injection mould wall in pultrusion process
Power is wiped to have a direct impact.At present in pultrusion process, residual of the resin on gel-injection mould wall is to influence pultrude process continuous production
Key factor be applied to pultrude process especially when the higher resin of reaction rate, such as polyurethane resin and prepare composite wood
Material is that the problem is especially prominent.
Therefore, when using pultrude process production composite material at present, it is primarily present following two systematicness problem: first is that long
In time pultrusion process, residual, solidification occur in injecting glue film for resin, influence continuous production, this problem is especially prominent to be embodied
In the faster resin of reaction rate；Second is that ununiform shrinkage can be generated after pultruded product goes out mold, profile section is caused to set with original
There are deviations for meter, are especially deformed with profile bottom surface the most serious.
Summary of the invention
The technical problems to be solved by the present invention are: when existing compound polyurethane material produces, the reaction speed of material resin
The problem of rate is too fast, makes it that residual, solidification occur in injecting glue film；And shrinking unevenly causes profile section to be deposited with original design
The deviation the problem of.
To solve the above-mentioned problems, the present invention provides a kind of production technology of fiber reinforcement polyurethane composite material,
It is characterized in that, using section gel-injection mould is tightened, by polyurethane resin raw material by the way that pultrude process, fiber reinforcement is made vertically
Compound polyurethane material；The deflation section refers to, in production process in gel-injection mould any glue continue it is existing perpendicular to
The cross section of pultrude process lead.
Preferably, gel time of the polyurethane resin raw material at 20 DEG C is not more than 2h.The present disclosure applies equally to
Other gel times at 20 DEG C are not more than the resin of 2h.
It preferably, is taper at the pultrusion for tightening section gel-injection mould.Sectional area in the present invention in gel-injection mould
Control method is to design the taper of glue-injection box, i.e. the included angle of glue-injection box inner surface and mold plane is realized, of the present invention
Fiber volume fraction control method including but not limited to control taper method.
It is highly preferred that the taper direction of the pultrusion direction of the pultrude process and deflation section gel-injection mould conical section
Angle is not more than 60 °.
Preferably, the sectional area of the fiber reinforcement polyurethane composite material is tighten section gel-injection mould inner section 12
~60%.
It is highly preferred that the glue being present in the cross section perpendicular to pultrusion direction always cutting in arbitrary cross section
Area is tighten section gel-injection mould inner section 25~55%.I.e. in gel-injection mould in production process, some only part-times
Fiber volume fraction in the section for the lead that existing glue is produced perpendicular to pultrusion is unrestricted.
Preferably, the fiber is at least one of glass fibre and carbon fiber.The present invention is suitable in composite material
The case where there are complex textiles in portion, it is possible to prevente effectively from because situations such as glue flow abnormalities caused by fabric.
Preferably, the maximum gauge for tightening section gel-injection mould inner section is greater than obtained fiber reinforcement polyurethane
The diameter of composite material.
It is highly preferred that the diameter for tightening section gel-injection mould inner section and obtained fiber reinforcement polyurethane are compound
The ratio of the diameter of material is less than 4.
The present invention measures the resin coagulation point inside gel-injection mould, when the total sectional area of fiber is about that glue-injection box is cut
Area 15% or more when, the probability of gum deposit is lower；When the total sectional area of fiber is about 20% or more of glue-injection box sectional area,
No glue solidification occurs.
The present invention proposes a kind of efficiently compound for producing fiber reinforcement polyurethane on the basis of traditional pultrude process
The pultrusion production process of material, using a kind of vertical pultrude process of deflation section gel-injection mould, when using gel-injection mould is tightened,
Above-mentioned bulking value can be set as to 20% that fiber total sectional area is about glue-injection box sectional area.
Glue-injection box of the present invention is to tighten section, fully ensures that glue in glue-injection box without resident；It is corresponding to use
The mode of vertical pultrusion sufficiently meets fiber and tree so that the flow direction of glue is conllinear with the trend of fiber in pultrusion process
Infiltration demand between rouge.
Detailed description of the invention
Fig. 1 is the schematic diagram of the present invention for tightening section gel-injection mould.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
Embodiment 1
As shown in Figure 1, for the schematic diagram of the present invention for tightening section gel-injection mould.Using deflation section injecting glue mould
Tool 1 produces fiber reinforcement polyurethane composite material 2 by vertical pultrude process, takes the straight of fiber reinforcement polyurethane composite material 2
Diameter d1 is 3mm, and the length L for tightening section gel-injection mould 1 is 200mm, the pultrusion direction of pultrude process and deflation section injecting glue mould
When the angle theta for having the taper direction of 1 conical section is 1 °, the maximum gauge d2 for tightening section gel-injection mould inner section is calculated
For 12mm, then d2/d1 is about 4, i.e. when 4 times having a size of d1 of d2, fiber total sectional area is about glue-injection box sectional area about 12%.Even
Gel-injection mould is dismantled after continuous pultrusion production fiber reinforcement polyurethane composite material 96h, gel-injection mould surface is remaining without obvious solidification
Object.After carrying out continuous pultrusion 96h by horizontal pultrusion mode according to above-mentioned gel-injection mould and correspondingly-sized, there are fibers for product
Nonwettable problem.
Embodiment 2
As shown in Figure 1, for the schematic diagram of the present invention for tightening section gel-injection mould.Using deflation section injecting glue mould
Tool 1 produces fiber reinforcement polyurethane composite material 2 by vertical pultrude process, takes the straight of fiber reinforcement polyurethane composite material 2
Diameter d1 is 3mm, and the length L for tightening section gel-injection mould 1 is 200mm, the pultrusion direction of pultrude process and deflation section injecting glue mould
When the angle theta for having the taper direction of conical section is 3 °, the maximum gauge d2 for tightening section gel-injection mould inner section is calculated
For 24mm, then d2/d1 is about 8, i.e. when 8 times having a size of d1 of d2, fiber total sectional area is about glue-injection box sectional area about 7%.Even
Dismantle gel-injection mould after continuous pultrusion production fiber reinforcement polyurethane composite material 96h, at the gel-injection mould maximum position near have
The mixture for solidifying residue and fiber fracture of wire is attached in gel-injection mould.Pass through according to above-mentioned gel-injection mould and correspondingly-sized
After horizontal pultrusion mode carries out continuous pultrusion 96h, there are the nonwettable problems of fiber for product.
Embodiment 3
As shown in Figure 1, for the schematic diagram of the present invention for tightening section gel-injection mould.Using deflation section injecting glue mould
Tool 1 produces fiber reinforcement polyurethane composite material 2 by vertical pultrude process, takes the straight of fiber reinforcement polyurethane composite material 2
Diameter d1 is 3mm, and the length L for tightening section gel-injection mould 1 is 200mm, tightens the maximum gauge d2 of section gel-injection mould inner section
Angle theta for 3mm, the taper direction in the pultrusion direction and deflation section gel-injection mould conical section of pultrude process tends to 0 °, then
D2:d1 ≈ 1, at this point, fiber total sectional area is about glue-injection box sectional area about 55%.Continuous pultrusion production fiber reinforcement polyurethane is multiple
Gel-injection mould is dismantled after condensation material 96h, there is slight hydrops phenomenon in gel-injection mould, that is, has a little solidification residue.According to
After above-mentioned gel-injection mould and correspondingly-sized carry out continuous pultrusion 96h by horizontal pultrusion mode, there are fibers to infiltrate for product
The problem of.
In conclusion producing fiber reinforcement polyurethane composite wood by vertical pultrude process using section gel-injection mould is tightened
Material, the problems such as capable of effectively avoiding remnants of the glue in gel-injection mould, solidification, blocking, it will be apparent that extend gel-injection mould
Use time and continuous pultrusion production time.By above-mentioned specific embodiment we it can be concluded that, it is any vertical in gel-injection mould
In in the section of the lead of pultrusion production, used fiber volume fraction range is 12-60%, i.e. deflation section injecting glue
Mold full-size than drawing and extruding section bar thickness less than 4 times when, pass through the vertical poly- ammonia of pultrude process continuous production fiber reinforcement
Ester composite material can effectively avoid the problems such as glue reflux, the apparent residual solidified in gel-injection mould inside.
Claims (9)
1. a kind of production technology of fiber reinforcement polyurethane composite material, which is characterized in that, will using section gel-injection mould is tightened
Polyurethane resin raw material is by pultrude process, being made fiber reinforcement polyurethane composite material vertically；The deflation section refers to,
Any glue continues the existing cross section perpendicular to pultrude process lead in gel-injection mould in production process.
2. the production technology of fiber reinforcement polyurethane composite material as described in claim 1, which is characterized in that the polyurethane
Gel time of the resin raw material at 20 DEG C is not more than 2h.
3. the production technology of fiber reinforcement polyurethane composite material as described in claim 1, which is characterized in that described tighten cuts
It is taper at the pultrusion of face gel-injection mould (1).
4. the production technology of fiber reinforcement polyurethane composite material as claimed in claim 3, which is characterized in that the pultrusion work
The pultrusion direction of skill and the angle (θ) for tightening the taper direction of section gel-injection mould (1) conical section are no more than 60 °.
5. the production technology of fiber reinforcement polyurethane composite material as described in claim 1, which is characterized in that the fiber increases
The sectional area of strong compound polyurethane material (2) is tighten section gel-injection mould (1) inner section 12~60%.
6. the production technology of fiber reinforcement polyurethane composite material as claimed in claim 5, which is characterized in that described to deposit always
It is that the glue in the cross section perpendicular to pultrusion direction is interior to tighten section gel-injection mould (1) in the sectional area of arbitrary cross section
The 25~55% of section.
7. the production technology of fiber reinforcement polyurethane composite material as described in claim 1, which is characterized in that the fiber is
At least one of glass fibre and carbon fiber.
8. the production technology of fiber reinforcement polyurethane composite material as described in claim 1, which is characterized in that described tighten cuts
Diameter (d2) at the gel-injection mould maximum cross-section of face is greater than the diameter (d1) of obtained fiber reinforcement polyurethane composite material.
9. the production technology of fiber reinforcement polyurethane composite material as claimed in claim 8, which is characterized in that described tighten cuts
The ratio of the diameter (d1) of diameter (d2) and obtained fiber reinforcement polyurethane composite material at the gel-injection mould maximum cross-section of face
Value is less than 4.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811608491.2A CN109572001B (en) | 2018-12-27 | 2018-12-27 | Production process of fiber-reinforced polyurethane composite material |
| PCT/CN2019/116137 WO2020134623A1 (en) | 2018-12-27 | 2019-11-07 | Production process for fiber reinforced polyurethane composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811608491.2A CN109572001B (en) | 2018-12-27 | 2018-12-27 | Production process of fiber-reinforced polyurethane composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109572001A true CN109572001A (en) | 2019-04-05 |
| CN109572001B CN109572001B (en) | 2021-05-11 |
Family
ID=65933027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811608491.2A Active CN109572001B (en) | 2018-12-27 | 2018-12-27 | Production process of fiber-reinforced polyurethane composite material |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109572001B (en) |
| WO (1) | WO2020134623A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134623A1 (en) * | 2018-12-27 | 2020-07-02 | 上海克络蒂材料科技发展有限公司 | Production process for fiber reinforced polyurethane composite material |
| CN117818095A (en) * | 2024-03-06 | 2024-04-05 | 国能联合动力技术(连云港)有限公司 | Turnover preformed pultrusion girder die |
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| CN1055701A (en) * | 1990-04-18 | 1991-10-30 | 喀里多尼亚复合材料有限公司 | Pultruded profiles |
| EP1094042A1 (en) * | 1999-10-22 | 2001-04-25 | Art Trading Services SA | Fiber impregnation with thermoplastic and thermoset polymers as liquids, as emulsion or suspension |
| EP2781342A1 (en) * | 2013-03-19 | 2014-09-24 | Eads UK Limited | Extrusion-based additive manufacturing |
| CN104890261A (en) * | 2015-05-15 | 2015-09-09 | 贵州蓝图新材料股份有限公司 | Preparation method for glass fiber cloth double-side impregnation reinforced polyolefin sheet |
| US20180126641A1 (en) * | 2016-11-04 | 2018-05-10 | Cc3D Llc | Additive manufacturing system having gravity-fed matrix |
| CN108943773A (en) * | 2018-06-11 | 2018-12-07 | 苏州恒川光伏科技有限公司 | The preparation method of pultrusion polyurethane fiber enhancing composite material |
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| US5073413A (en) * | 1990-05-31 | 1991-12-17 | American Composite Technology, Inc. | Method and apparatus for wetting fiber reinforcements with matrix materials in the pultrusion process using continuous in-line degassing |
| US5207850A (en) * | 1990-07-17 | 1993-05-04 | General Electric Company | Process for making thermoplastic composites with cyclics oligomers and composites made thereby |
| US8597016B2 (en) * | 2005-11-23 | 2013-12-03 | Milgard Manufacturing Incorporated | System for producing pultruded components |
| CN102179943B (en) * | 2011-03-10 | 2013-04-03 | 哈尔滨玻璃钢研究院 | Injection die for injection and pull-extrusion process and method for preparing resin matrix composite by using same |
| CN103171154A (en) * | 2013-01-23 | 2013-06-26 | 浙江科成电气有限公司 | Manufacturing method and manufacturing equipment of fiber-reinforced epoxy resin pultrusion rods |
| CN109572001B (en) * | 2018-12-27 | 2021-05-11 | 孙生根 | Production process of fiber-reinforced polyurethane composite material |
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2018
- 2018-12-27 CN CN201811608491.2A patent/CN109572001B/en active Active
-
2019
- 2019-11-07 WO PCT/CN2019/116137 patent/WO2020134623A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055701A (en) * | 1990-04-18 | 1991-10-30 | 喀里多尼亚复合材料有限公司 | Pultruded profiles |
| EP1094042A1 (en) * | 1999-10-22 | 2001-04-25 | Art Trading Services SA | Fiber impregnation with thermoplastic and thermoset polymers as liquids, as emulsion or suspension |
| EP2781342A1 (en) * | 2013-03-19 | 2014-09-24 | Eads UK Limited | Extrusion-based additive manufacturing |
| CN104890261A (en) * | 2015-05-15 | 2015-09-09 | 贵州蓝图新材料股份有限公司 | Preparation method for glass fiber cloth double-side impregnation reinforced polyolefin sheet |
| US20180126641A1 (en) * | 2016-11-04 | 2018-05-10 | Cc3D Llc | Additive manufacturing system having gravity-fed matrix |
| CN108943773A (en) * | 2018-06-11 | 2018-12-07 | 苏州恒川光伏科技有限公司 | The preparation method of pultrusion polyurethane fiber enhancing composite material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134623A1 (en) * | 2018-12-27 | 2020-07-02 | 上海克络蒂材料科技发展有限公司 | Production process for fiber reinforced polyurethane composite material |
| CN117818095A (en) * | 2024-03-06 | 2024-04-05 | 国能联合动力技术(连云港)有限公司 | Turnover preformed pultrusion girder die |
| CN117818095B (en) * | 2024-03-06 | 2024-05-28 | 国能联合动力技术(连云港)有限公司 | Turnover preformed pultrusion girder die |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020134623A1 (en) | 2020-07-02 |
| CN109572001B (en) | 2021-05-11 |
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