CN110527117A - A kind of manufacturing method of fibre reinforced moulding compound - Google Patents
A kind of manufacturing method of fibre reinforced moulding compound Download PDFInfo
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- CN110527117A CN110527117A CN201911001795.7A CN201911001795A CN110527117A CN 110527117 A CN110527117 A CN 110527117A CN 201911001795 A CN201911001795 A CN 201911001795A CN 110527117 A CN110527117 A CN 110527117A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000000835 fiber Substances 0.000 title claims abstract description 24
- 239000000206 moulding compound Substances 0.000 title claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 75
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 74
- 239000004917 carbon fiber Substances 0.000 claims abstract description 74
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 239000011248 coating agent Substances 0.000 claims abstract description 29
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000004913 activation Effects 0.000 claims abstract description 19
- 238000002604 ultrasonography Methods 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims abstract description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 24
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000001994 activation Methods 0.000 description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000003365 glass fiber Substances 0.000 description 7
- 239000012190 activator Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920005749 polyurethane resin Polymers 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 poly- ammonia Ester Chemical class 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/06—Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention proposes a kind of manufacturing methods of fibre reinforced moulding compound, belong to the raw material manufacturing technology field of composite material industry.The method is sequentially the following steps are included: the dividing sinker flattening-out of a. carbon fiber；B. the activation processing of carbon fiber；C. carbon fiber is dried；D. the small tow carbon fiber after drying couples pond coating in ultrasound and couples coating；E. carbon fiber secondary drying；F. carbon fiber and resin is compound.
Description
Technical field
The invention proposes a kind of manufacturing methods of fibre reinforced moulding compound, belong to the raw material manufacture of composite material industry
Technical field.
Background technique
Composite material generally by matrix and enhances phase composition, and common composite material is fiber-reinforced resin in mechanical structure
Based composites, matrix are various types of resins, and reinforced phase is various types of fibers.Composite material is in solidification
Before, resin is liquid or semi liquid state；After composite material is formed by curing composite products under certain temperature and pressure,
Resin becomes solid.Moulding compound is a kind of form of composite material, is occurred to adapt to composite material moulded technique,
It is that reinforcing fiber, resin, thickener and other additives mix to be formed, the Product Status of moulding compound is similar to soft face
Group or soft dough sheet, resin therein due to thickener effect and semi liquid state is presented.Moulding compound can save at normal temperature compared with
For a long time, convenient for the segmentation of coining operation, weigh and enter mould, be a kind of composite material industry commonly raw material form.For a long time
Since, glass fibre reinforced mould plastic is widely applied in industry.
The performance of carbon fiber is better than glass fibre, in recent years, with universal, the application of carbon fiber of carbon fiber manufacturing technology
Increasingly extensive, the manufacture and use of fibre reinforced moulding compound have also obtained the concern of composite material industry, to acquired
It can better composite products.But up to the present, relevant manufacturers are still adopted when manufacturing experimently fibre reinforced moulding compound
With the process equipment and method of original manufacture glass fibre molding compound, glass fibre only is substituted with carbon fiber.Glass fibers
The glass fiber yarn that is mainly characterized by of the manufacturing method of dimension enhancing moulding compound is directly entered without processing and to answer with resin
Close technique.The fibre reinforced moulding compound poor performance manufactured in this manner, this is because the characteristic of carbon fiber causes
Wellability and poor dispersion of the carbon fiber in moulding compound, this is also that fibre reinforced moulding compound manufacturing not yet solves
Problem, the large-scale production of fibre reinforced moulding compound stable and reliable for performance is great in composite material industry or one
Blank.
The diameter of carbon mono-filaments is usually 7 microns, and the commercialization carbon fiber of actual production is thousands of to tens of thousands of
The tow of carbon mono-filaments composition, a branch of carbon fiber is further around a roll at specified weight.A branch of carbon fiber contains 24000 or less
Carbon mono-filaments, referred to as small tow carbon fiber；A branch of carbon fiber contains 24000 or more carbon mono-filaments, referred to as big silk
Beam carbon fiber.When carbon mono-filaments form tow, have torsion the whole rope made of hemp as volume of tow is known as twisting tow, and tow is whole
What body did not reverse is known as non-twist tow.
The microcosmic surface of carbon mono-filaments be it is smooth, carbon mono-filaments due to surface force effect and tend to be gathered in
Together.
When carbon fiber forms composite material together with resin compounded, it is desirable that carbon fiber has good dispersibility in resin
And wellability.Good dispersibility be exactly require carbon fiber as far as possible in the form of monofilament or small tow form in resin matrix
Even distribution, rather than be distributed in resin matrix with big tow form.Good wellability exactly requires resin before curing
Fiber surface can be uniformly fitted in and form good combination interface.Good dispersibility and wellability, are composite properties
Excellent basis.
In order to improve the wellability between resin and fiber and improve interface performance, it is appropriate to add in the composite
Coupling molecule, coupling molecule is a kind of high molecular material, and the interface binding power between two kinds of materials can be improved.
In addition, for a long time, traditional composite material moulding compound generally uses unsaturated polyester resin, environmental-protecting performance and
Toughness is all poor.Environmental-protecting performance is bad, and referring to has styrene volatilization in manufacture link, and styrene is a kind of insalubrity
Volatile materials has adverse effect to operator and environment.In addition, the toughness due to resin is not high, using traditional moulding compound
The composite products of manufacture will generally avoid aperture and mechanical connection, this brings inconvenience to many post-productions.
Summary of the invention
The invention proposes a kind of manufacturing methods of fibre reinforced moulding compound, can solve carbon fiber in moulding compound
Dispersibility and the bad problem of wellability, can also improve the environmental-protecting performance and toughness of molded plastic article.
As shown in Figure 1, the above method sequentially the following steps are included:
A. the dividing sinker flattening-out of carbon fiber, the non-twist carbon fibre thread of big tow by dividing sinker flattening-out equipment become tiling comprising several
The small tow carbon fiber yarn of ten monofilament；
B. the small tow carbon fiber yarn of the activation processing of carbon fiber, tiling is surface-treated in ultrasonic activation pond, described
Ultrasonic activation pond is one and contains the closed container for being activated agent solution, and there is ultrasonic wave hair in the outside in the ultrasonic activation pond
Raw device；
C. carbon fiber is dried, and the carbon fiber after activation processing is dried in baking oven, and the operating temperature of the baking oven is
100~150 DEG C；
D. the small tow carbon fiber after drying couples pond coating in ultrasound and couples coating, and it is to contain to couple that the ultrasound, which couples pond,
The closed container of coating solution, the coating solution that couples contain coupling molecule, and the ultrasound, which couples, ultrasonic wave outside pond
Device；
E. carbon fiber secondary drying is coated with the carbon fiber for coupling coating solution by baking oven, and carbon fiber surface couples coating
It is sufficiently dried, the operating temperature of the baking oven is 100~150 DEG C；
F. carbon fiber and resin is compound, be coated with couple coating drying carbon fiber it is uniformly compound with resin in equipment complex
After obtain fibre reinforced moulding compound.
As shown in Figure 1, the advance route of carbon fiber is turned by idler wheel in the step b and step d of the above method
When, angle of turn is no more than 90 degree.Lesser angle of turn can reduce the tension of carbon fiber during the motion, thus can be with
The damage for reducing carbon fiber can also reduce the power of drive apparatus, reduce energy consumption.
As shown in Figure 1, being coated with the small tow carbon fiber for coupling coating across gap idler wheel in the step d of the above method
Gap after leave ultrasound and couple pond, the gap is 0.5~1.5 millimeter.It is coated with the carbon fiber process for coupling coating solution
When the gap of a pair of of idler wheel, extra solution can be removed, and due to the squeezing action of roller gap, it can be ensured that more
Carbon mono-filaments surface, which applies to apply, couples coating.The extruding of gap idler wheel can also continue to keep the tiling shape of small tow carbon fiber
State.
In the step f of the above method, the resin includes polyurethane.Polyurethane resin is that one kind for occurring in recent years is new
Type matrices of composite material, other than with good performance, it is often more important that in process of production without nocuousness such as styrene
The volatilization of substance；Meanwhile there is extraordinary toughness using the composite products of polyurethane resin, product can also be implemented
Reasonable aperture and mechanical joining operation.Currently, in composite material moulding compound manufacturing, there are no using polyurethane resin as
Matrix uses.
In the step a of the above method, the thicker and intensive non-twist carbon fibre thread of big tow passes through dividing sinker flattening-out
After equipment, become the small tow carbon fiber of tiling, so, in subsequent activation and coating process, it can be ensured that more
The available activation in carbon mono-filaments surface and coating.
In the step b of the above method, under ultrasonic wave effect, activator solution and small tow carbon fiber can be generated not
The vibration of rule, this vibration enable carbon mono-filaments to be separated from each other and come into full contact with to be filled with activator solution
The surface activation process divided.For carbon mono-filaments after being activated, microcosmic surface can become coarse, increase the surface of monofilament
Product, to increase the effect of impregnation with resin.Carbon mono-filaments after activation processing, mechanical property can lose 15% left side
The right side, but due to the improvement of its wellability, the overall mechanical properties of composite material improve 30% or more instead.
In the step d of the above method, the carbon fiber after activation enters after drying couples coating pond, while after continuation of insurance
Maintain an equal level paving and small tow state, is coupling in coating pond, and the surface of most of carbon mono-filaments can apply one layer of coupling molecule coating,
This coupling molecule coating can increase the binding force for improving carbon mono-filaments and resin, and can prevent carbon mono-filaments again
It is gathered into large-tow carbon fiber.
Detailed description of the invention
Fig. 1 is a production line schematic diagram for meeting the method for the present invention.
Fig. 2 is A in Fig. 1 to partial top view.
Fig. 3 is B in Fig. 1 to partial top view.
Fig. 4 is C in Fig. 1 to partial top view.
Specific embodiment
The T700 zero twisted yarn of 48K is selected, T700 is a kind of model of carbon fiber, and 48K, which is meant that in a branch of yarn, to be contained
48000 carbon mono-filaments, as shown in figure 1 101, after yarn 101 passes through dividing sinker flattening-out equipment 102, the small silk that is tiled
Beam carbon fibre thread 103, the carbon mono-filaments quantity that a branch of yarn contains in yarn 103 are less than 100.The dividing sinker is ground
Flat equipment 102 is a kind of commercialized common apparatus, can purchase or customize on the market in relevant manufacturers.Yarn 101
Quantity is related with the specification of production capacity and product, and the present embodiment has selected 3 stock yarn lines 101.In the present inventive method when specific production,
It can determine the quantity of yarn 101 according to actual needs.
Yarn 103 enters ultrasonic activation pond 104, is carbon fiber activator solution 106, activating tank in ultrasonic activation pond 104
There is supersonic generator 105 in outside.In other technologies field, someone did some researchs, institute to carbon fiber surface activating technology
Stating activator solution can be prepared by published formula, and formula appropriate can also be obtained by pilot production.Ultrasonic wave
Effect is that fiber and activator is allowed sufficiently to shake, so that each carbon mono-filaments can come into full contact with activator,
To obtain good surface-activation effect.The power of supersonic generator should not be too large, and adjusting can sufficiently shake to carbon fiber
Come.Excessive ultrasonic power can cause to damage to carbon fiber.Supersonic generator is mature commercial equipment, can
To be customized in market purchasing or in relevant manufacturers.
Small tow carbon fiber yarn after activation enters baking oven 107, and carbon fibre thread can remove table by being dried
The subsidiary liquid in face, to carry out subsequent surface treatment.Baking oven 107 is a kind of common apparatus of technology maturation, can be in city
It is purchased on field or passes through relevant manufacturers and customized.The operating temperature of baking oven is generally 100~150 DEG C, in the present embodiment, baking oven
Operating temperature be set as 120 DEG C.
Carbon fiber after drying enters ultrasound and couples pond 108, and it is containing coupling molecule and other additions that ultrasound, which couples in pond 108,
The formula of the solution 109 of agent, the solution can be determined by pilot production, or be determined by disclosed technical data.It is super
There is supersonic generator 111 in the outside that sound couples pond, can make carbon fiber by the vibration that ultrasonic wave generates and couple agent solution
It comes into full contact with, more carbon mono-filaments surfaces is made all to apply to apply and couple coating.It is coated between the carbon fiber process for coupling coating
Gap idler wheel 113 leaves ultrasound and couples pond and continue to keep tiled state, and the gap of gap idler wheel is 1.0 millimeters.
It is coated with and couples the drying carbon fiber of coating and enter 114 secondary drying of baking oven, effect is to make carbon fiber surface
It couples curing of coatings and carbon fiber is prevented to be gathered into big tow again.
As shown in Figure 1, the advance route of carbon fiber is turned by idler wheel, in the present embodiment, angle of turn is 70 degree.
Lesser angle of turn can reduce the tension of carbon fiber during the motion, thus can reduce the damage of carbon fiber, may be used also
To reduce the power of drive apparatus, energy consumption is reduced.
The carbon fiber for coupling coating is coated with by the dry equipment complex for entering fiber and resin, is obtained by uniformly compound
To fibre reinforced moulding compound.The basic phase of production equipment of equipment complex herein and traditional glass fibre reinforced mould plastic
Together, it can be customized in related producer.Compound tense can select a plurality of types of resins as required, and what the present embodiment was selected is poly- ammonia
Ester, feature first is that environmental-protecting performance is relatively good, volatilize in process of production without harmful substances such as styrene, the two of feature
Be final composite products toughness it is relatively good, have higher shock resistance, can also take aperture appropriate and
Mechanical joining operation.
Claims (5)
1. a kind of manufacturing method of fibre reinforced moulding compound, the method sequentially the following steps are included:
A. the non-twist carbon fibre thread (101) of the dividing sinker flattening-out of carbon fiber, big tow becomes flat by dividing sinker flattening-out equipment (102)
The small tow carbon fiber yarn (103) of paving, the monofilament quantity of a branch of yarn is no more than in the small tow carbon fiber yarn (103)
100；
B. the activation processing of carbon fiber, the small tow carbon fiber yarn of tiling (104) in ultrasonic activation pond are surface-treated,
The ultrasonic activation pond (104) is the closed container for containing activation processing agent solution (106), the ultrasonic activation pond
Outside has supersonic generator (105)；
C. carbon fiber is dried, and the carbon fiber after activation processing is dried in baking oven (107)；
D. the small tow carbon fiber after drying couples pond (108) coating in ultrasound and couples coating, and the ultrasound, which couples pond (108), is
The closed container for coupling coating solution (109) is contained, the coating solution that couples contains coupling molecule, and the ultrasound couples outside pond
Portion has supersonic generator (111)；
E. carbon fiber secondary drying is coated with the carbon fiber for coupling coating solution by baking oven (114), and carbon fiber surface couples
Coating is sufficiently dried；
F. carbon fiber and resin is compound, be coated with couple coating carbon fiber it is uniformly multiple with resin in equipment complex (115)
Fibre reinforced moulding compound (116) are obtained after conjunction.
2. the method as described in claim 1, in step b and step d, the advance route of carbon fiber is sent out by idler wheel (110)
When raw turning, angle of turn (112) is no more than 90 degree.
3. the method as described in claim 1 is coated with the small tow carbon fiber for coupling coating across gap rolling in step d
Ultrasound is left behind the gap of wheel and couples pond, and the gap is 0.5~1.5 millimeter.
4. the method as described in claim 1, in step f, the resin includes polyurethane.
5. the method as described in claim 1, in step c and step e, the operating temperature of the baking oven is 100~150 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001795.7A CN110527117B (en) | 2019-10-21 | 2019-10-21 | Method for manufacturing carbon fiber reinforced molding compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911001795.7A CN110527117B (en) | 2019-10-21 | 2019-10-21 | Method for manufacturing carbon fiber reinforced molding compound |
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| Publication Number | Publication Date |
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| CN110527117A true CN110527117A (en) | 2019-12-03 |
| CN110527117B CN110527117B (en) | 2020-09-25 |
Family
ID=68672076
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643435A (en) * | 1979-09-19 | 1981-04-22 | Nippon Carbon Co Ltd | Opening method of yarn or the like |
| JP2008174605A (en) * | 2007-01-17 | 2008-07-31 | Toray Ind Inc | Fiber-reinforced resin |
| CN105315475A (en) * | 2014-07-16 | 2016-02-10 | 合复新材料科技(无锡)有限公司 | Fiber reinforced resin composite material, preparation method and applications thereof |
| CN105733096A (en) * | 2016-04-18 | 2016-07-06 | 河南工业大学 | Long carbon fiber reinforced thermoplastic composite material and preparation method thereof |
| CN107406600A (en) * | 2015-03-30 | 2017-11-28 | 东丽株式会社 | Fiber-reinforced resin moulding material and its manufacture method |
-
2019
- 2019-10-21 CN CN201911001795.7A patent/CN110527117B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643435A (en) * | 1979-09-19 | 1981-04-22 | Nippon Carbon Co Ltd | Opening method of yarn or the like |
| JP2008174605A (en) * | 2007-01-17 | 2008-07-31 | Toray Ind Inc | Fiber-reinforced resin |
| CN105315475A (en) * | 2014-07-16 | 2016-02-10 | 合复新材料科技(无锡)有限公司 | Fiber reinforced resin composite material, preparation method and applications thereof |
| CN107406600A (en) * | 2015-03-30 | 2017-11-28 | 东丽株式会社 | Fiber-reinforced resin moulding material and its manufacture method |
| CN105733096A (en) * | 2016-04-18 | 2016-07-06 | 河南工业大学 | Long carbon fiber reinforced thermoplastic composite material and preparation method thereof |
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|---|---|
| CN110527117B (en) | 2020-09-25 |
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