CN106751481A - A kind of fiberglass and by its obtained fiberglass dovetail - Google Patents
A kind of fiberglass and by its obtained fiberglass dovetail Download PDFInfo
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- CN106751481A CN106751481A CN201611084610.XA CN201611084610A CN106751481A CN 106751481 A CN106751481 A CN 106751481A CN 201611084610 A CN201611084610 A CN 201611084610A CN 106751481 A CN106751481 A CN 106751481A
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- Prior art keywords
- dovetail
- reinforced plastic
- glass fiber
- fiber reinforced
- fiberglass
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 59
- 239000003822 epoxy resin Substances 0.000 claims abstract description 20
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 14
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 12
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 11
- 239000004917 carbon fiber Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000003063 flame retardant Substances 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 8
- 239000011265 semifinished product Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000006229 carbon black Substances 0.000 claims description 10
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims description 3
- ULKLGIFJWFIQFF-UHFFFAOYSA-N 5K8XI641G3 Chemical compound CCC1=NC=C(C)N1 ULKLGIFJWFIQFF-UHFFFAOYSA-N 0.000 claims description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 3
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 claims description 3
- AOMUHOFOVNGZAN-UHFFFAOYSA-N N,N-bis(2-hydroxyethyl)dodecanamide Chemical compound CCCCCCCCCCCC(=O)N(CCO)CCO AOMUHOFOVNGZAN-UHFFFAOYSA-N 0.000 claims description 3
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 3
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 3
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 3
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 3
- 229940031957 lauric acid diethanolamide Drugs 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 241000872198 Serjania polyphylla Species 0.000 claims 1
- 150000002505 iron Chemical group 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 5
- 238000004381 surface treatment Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229910000746 Structural steel Inorganic materials 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
-
- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0856—Iron
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention provides a kind of fiberglass and by its obtained fiberglass dovetail, the fiberglass is prepared from by epoxy resin, carbon fiber, glass fibre, basalt fibre, metal dust, plasticizer, curing agent, fire retardant, tackifier and filler, by the rational proportion of above-mentioned specified raw material, the tensile strength of fiberglass can be promoted to 550 600MPa by existing 370 500MPa, so as to be prevented effectively from by the cracking of its obtained dovetail bending place, it is ensured that security of the dovetail in braking procedure；And fiberglass dovetail of the invention also have excellent anticorrosive and resistance to elevated temperatures so that the surface treatment procedure of dovetail can be cancelled in the actual production of brake lining, can not only improve production efficiency, can also widen the suitable environment of brake lining, increase the service life.
Description
Technical Field
The invention belongs to the technical field of railway transportation equipment, and particularly relates to glass fiber reinforced plastic and a glass fiber reinforced plastic dovetail manufactured by the glass fiber reinforced plastic.
Background
With the rapid development of economy and the continuous improvement of national living standard, railway rail transit is gradually developed into important infrastructure of China, the aorta of national economy and a first choice tool for people to go out, and particularly, the introduction and the localization development of urban rail transit systems in recent years enable the railway industry of China to have a leap development.
In the actual operation process of the urban rail vehicle, a good and stable brake system is the guarantee of the safe operation of the urban rail vehicle. As the running speed of the current urban rail vehicle is continuously improved, the braking load of the train is greatly increased, and higher requirements are provided for a braking system of the train. The brake pad is one of important parts of the braking system of the urban railway vehicle, and the brake pad can convert huge kinetic energy into heat energy to be dissipated into air through friction when a train brakes, so that the brake pad braking material is required to have high mechanical strength, good heat resistance and thermal conductivity, stable friction performance, low abrasion and wheel abrasion.
The brake pad material commonly used in the prior art is a high molecular synthetic material, so the brake pad is called as a synthetic brake pad, the synthetic brake pad mainly comprises a dovetail part and a friction body, and the dovetail part and the friction body are combined together in a hot pressing mode. Traditional forked tail material is carbon element structural steel, because the forked tail is stamping workpiece integrated into one piece, so the forked tail department of bending can appear the crackle in its course of working, has consequently reduced the intensity of forked tail. In addition, the air humidity in the rainy and snowy weather is high, so that the discharge ablation is easy to generate, and the carbon begins to be greatly oxidized in the environment of 400 ℃, so that the service life of the conventional dovetail is greatly reduced in the rainy and snowy weather. In addition, traditional steel construction forked tail is after surface treatment, and the phenomenon that wearing and tearing, even drop appear easily in its use surface coating, lead to the brake lining forked tail to rust, then the result of use of direct influence brake lining.
To sum up, in order to reduce the crackle of forked tail department of bending, reinforcing forked tail intensity increases the factor of safety of brake lining in the use, improves the anticorrosive performance of forked tail simultaneously, therefore just the urgent need improves the material of brake lining forked tail to effectively solve traditional forked tail crack and the easy problem of rustting in the use under the circumstances of intensity is bent to the assurance forked tail structure design.
Disclosure of Invention
The invention aims to overcome the defects of low strength and poor corrosion resistance of the existing brake pad dovetail made of carbon structural steel, and further provides a glass fiber reinforced plastic dovetail with high strength and good corrosion resistance and a production process thereof.
Therefore, the technical scheme for realizing the purpose is as follows:
the glass fiber reinforced plastic is prepared from the following raw materials in parts by weight:
preferably, the glass fiber reinforced plastic is prepared from the following raw materials in parts by weight:
more preferably, the glass fiber reinforced plastic is prepared from the following raw materials in parts by weight:
or,
or,
preferably, the alkali metal oxide content in the glass fibers does not exceed 0.5 wt.%.
Preferably, the metal powder is iron powder and/or copper powder.
Preferably, the filler is carbon black or a mixture of carbon black and quartz powder and/or carbon silica powder.
Preferably, the plasticizer is selected from one or more of dioctyl phthalate, dibutyl phthalate or diisodecyl phthalate;
the curing agent is selected from one or more of methyl ethyl ketone peroxide, 2-ethyl-4-methylimidazole, polyamide 650, T31 epoxy resin curing agent, amine-105 epoxy resin curing agent or KJP-1002 epoxy resin curing agent;
the flame retardant is selected from one or more of decabromodiphenyl ether, tetrabromobisphenol A, aluminum hydroxide or microencapsulated red phosphorus;
the tackifier is selected from one or more of 4, 4' -bismaleimide diphenylmethane, lauric acid diethanolamide, 203 resin or RX-80 resin.
A glass fiber reinforced plastic dovetail is made of the glass fiber reinforced plastic.
A production process of a glass fiber reinforced plastic dovetail comprises the following steps:
(1) mixing carbon fibers, glass fibers and basalt fibers, placing the mixture into a lower die in a die with a dovetail shape, and covering the upper portion of the lower die with a closed die;
(2) respectively adding metal powder, a plasticizer, a curing agent, a flame retardant, a tackifier and a filler into molten epoxy resin to form slurry, then injecting the slurry into the mold, carrying out heat preservation and curing at the temperature of 110-150 ℃ for 1-4min, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
A production process of a glass fiber reinforced plastic dovetail comprises the following steps:
(1) mixing carbon fibers, glass fibers and basalt fibers, then soaking the mixture in molten epoxy resin, cooling the mixture and pressing the mixture into a sheet shape to obtain a prepreg for later use;
(2) respectively adding the prepreg, the metal powder, the plasticizer, the curing agent, the flame retardant, the tackifier and the filler into a mold, carrying out heat preservation and curing for 1-4min at the temperature of 110-150 ℃ under the pressure of 3-7MPa, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
The technical scheme of the invention has the following advantages:
1. the glass fiber reinforced plastic provided by the invention is prepared from 80-120 parts by weight of epoxy resin, 15-20 parts by weight of carbon fiber, 10-20 parts by weight of glass fiber, 5-10 parts by weight of basalt fiber, 10-15 parts by weight of metal powder, 6-10 parts by weight of plasticizer, 4-8 parts by weight of curing agent, 10-20 parts by weight of flame retardant, 1-2 parts by weight of tackifier and 30-40 parts by weight of filler, and the tensile strength of the glass fiber reinforced plastic can be improved from the existing 370-plus 500MPa to 550-plus 600MPa through the reasonable proportion of the specific raw materials, so that the cracking of the prepared dovetail at the bending part is effectively avoided, and the safety of the dovetail in the braking process is ensured; the glass fiber reinforced plastic also has excellent corrosion resistance and high temperature resistance, so that a dovetail surface treatment process can be omitted in the actual production of the brake pad, the production efficiency can be improved, the applicable environment of the brake pad can be widened, the service life can be prolonged, and the glass fiber reinforced plastic also has longer service life than carbon structural steel under a mild working condition even under a severe working condition (such as wind, sun and rain).
2. According to the glass fiber reinforced plastic provided by the invention, the metal powder is limited to be iron powder, copper powder and/or tin powder, and the filler contains carbon black, so that the yield strength of the glass fiber reinforced plastic is further enhanced, and the phenomenon of cracking at a dovetail bending part made of the glass fiber reinforced plastic is avoided.
3. According to the glass fiber reinforced plastic provided by the invention, basalt fibers and glass fibers with the alkali metal oxide content not more than 0.5 wt% are selected to further improve the high temperature resistance of the glass fiber reinforced plastic, so that the requirement that a dovetail manufactured by the glass fiber reinforced plastic can be used within the temperature range of-20-400 ℃ is met.
4. The production process of the glass fiber reinforced plastic dovetail can be an RTM (resin transfer molding) forming process, is a closed mold operation system, and has the characteristics of small pollution, less material consumption and short production period; in addition, the method can also be a compression molding process, the process is easy to realize mechanization and automation, is suitable for mass production, and has smooth surface, accurate size, good repeatability and low cost. In addition, no matter which process is adopted, a stamping part is not needed, and the surface treatment of the dovetail is not needed, so that the dovetail strength is enhanced, the production efficiency is improved, and the stability of the dovetail performance and the size among different batches can be ensured.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the following examples, 1Kg represents 1 part by weight.
Example 1
The production process of the glass fiber reinforced plastic dovetail provided by the embodiment comprises the following steps:
(1) mixing 15Kg of carbon fiber, 20Kg of alkali-free glass fiber and 5Kg of basalt fiber, placing the mixture in a lower die in a die with a dovetail shape, and covering the upper part of the lower die with a closed die;
(2) respectively adding 10Kg of iron powder, 10Kg of dioctyl phthalate, 4Kg of T31 epoxy resin curing agent, 10Kg of decabromodiphenyl oxide, 2Kg of RX-80 resin, 16Kg of carbon black and 20Kg of quartz powder into 95Kg of molten epoxy resin to form slurry, injecting the slurry into a mold through a glue injection port of the upper mold, preserving heat and curing for 2min at 110 ℃, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
Example 2
The production process of the glass fiber reinforced plastic dovetail provided by the embodiment comprises the following steps:
(1) mixing 20Kg of carbon fiber, 10Kg of alkali-free glass fiber and 10Kg of basalt fiber, placing the mixture in a lower die in a die with a dovetail shape, and covering the upper part of the lower die with a closed die;
(2) respectively adding 12.5Kg of copper powder, 6Kg of diisodecyl phthalate, 8Kg of amine-105 epoxy resin curing agent, 15Kg of tetrabromobisphenol A, 1Kg of 4, 4' -bismaleimide diphenylmethane, 20Kg of carbon black and 20Kg of carbon silica powder into 80Kg of molten epoxy resin to form slurry, then injecting the slurry into a mold through a glue injection port of the upper mold, preserving heat and curing for 4min at 150 ℃, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
Example 3
The production process of the glass fiber reinforced plastic dovetail provided by the embodiment comprises the following steps:
(1) mixing 17Kg of carbon fiber, 18Kg of alkali-free glass fiber and 6.5Kg of basalt fiber, placing the mixture in a lower die in a die with a dovetail shape, and covering the upper part of the lower die with a closed die;
(2) respectively adding 8Kg of iron powder, 5Kg of copper powder, 9Kg of dibutyl phthalate, 5.8Kg of methyl ethyl ketone peroxide, 13Kg of microencapsulated red phosphorus, 1.4Kg of 203 resin, 30Kg of carbon black and 8Kg of quartz powder into 100Kg of molten epoxy resin to form slurry, injecting the slurry into a mold through a glue injection port of the upper mold, preserving heat and curing for 3min at 125 ℃, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
Example 4
The production process of the glass fiber reinforced plastic dovetail provided by the embodiment comprises the following steps:
(1) mixing 16Kg of carbon fiber, 15Kg of alkali-free glass fiber and 7Kg of basalt fiber, soaking the mixture in 88Kg of molten epoxy resin, cooling and pressing the mixture into sheets to obtain prepreg for later use;
(2) respectively adding the prepreg, 14Kg of iron powder, 8.5Kg of dibutyl phthalate, 6Kg of KJP-1002 epoxy resin curing agent, 14.5Kg of aluminum hydroxide, 1.5Kg of lauric acid diethanolamide and 35Kg of carbon black into a mold, preserving heat and curing for 1min at the temperature of 150 ℃ under 3MPa, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
Example 5
The production process of the glass fiber reinforced plastic dovetail provided by the embodiment comprises the following steps:
(1) mixing 18Kg of carbon fiber, 16Kg of alkali-free glass fiber and 6Kg of basalt fiber, then soaking the mixture in 110Kg of molten epoxy resin, cooling and pressing the mixture into sheets to obtain prepreg for later use;
(2) respectively adding the prepreg, 12Kg of iron powder, 8Kg of dibutyl phthalate, 5Kg of 2-ethyl-4-methylimidazole, 15Kg of aluminum hydroxide, 1.3Kg of 203 resin, 24Kg of carbon black and 10Kg of quartz powder into a mold, preserving heat and curing for 2.5min at the temperature of 7MPa and 110 ℃, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
Comparative example 1
The glass fiber reinforced plastic dovetail provided by the comparative example is prepared from the following raw materials in parts by weight:
the process steps for producing the FRP dovetails in this comparative example are the same as example 1.
Comparative example 2
The glass fiber reinforced plastic dovetail provided by the comparative example is prepared from the following raw materials in parts by weight:
the process steps for producing the FRP dovetails in this comparative example are the same as example 1.
Examples of the experiments
The physical properties of the dovetails of the glass reinforced plastics prepared in the above examples 1-5 and comparative examples 1-2 of the present invention were measured and the results are shown in table 1.
TABLE 1 physical Properties of the dovetails
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The glass fiber reinforced plastic is characterized by being prepared from the following raw materials in parts by weight:
2. the glass fiber reinforced plastic of claim 1, which is prepared from the following raw materials in parts by weight:
3. the glass fiber reinforced plastic according to claim 1 or 2, which is prepared from the following raw materials in parts by weight:
or,
or,
4. glass reinforced plastic according to any one of claims 1 to 3, wherein the alkali metal oxide content in the glass fibers does not exceed 0.5 wt.%.
5. Glass reinforced plastic according to any one of claims 1 to 4, wherein the metal powder is iron and/or copper powder.
6. Glass reinforced plastic according to any one of claims 1 to 5, wherein the filler is carbon black or a mixture of carbon black with quartz powder and/or carbon silica powder.
7. Glass fiber reinforced plastic according to any one of claims 1 to 6, characterized in that:
the plasticizer is selected from one or more of dioctyl phthalate, dibutyl phthalate or diisodecyl phthalate;
the curing agent is selected from one or more of methyl ethyl ketone peroxide, 2-ethyl-4-methylimidazole, polyamide 650, T31 epoxy resin curing agent, amine-105 epoxy resin curing agent or KJP-1002 epoxy resin curing agent;
the flame retardant is selected from one or more of decabromodiphenyl ether, tetrabromobisphenol A, aluminum hydroxide or microencapsulated red phosphorus;
the tackifier is selected from one or more of 4, 4' -bismaleimide diphenylmethane, lauric acid diethanolamide, 203 resin or RX-80 resin.
8. A glass reinforced plastic dovetail, made of glass reinforced plastic according to any of claims 1-7.
9. A process for producing a fiberglass dovetail according to claim 8, comprising the steps of:
(1) mixing carbon fibers, glass fibers and basalt fibers, placing the mixture into a lower die in a die with a dovetail shape, and covering the upper portion of the lower die with a closed die;
(2) respectively adding metal powder, a plasticizer, a curing agent, a flame retardant, a tackifier and a filler into molten epoxy resin to form slurry, then injecting the slurry into the mold, carrying out heat preservation and curing at the temperature of 110-150 ℃ for 1-4min, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
10. A process for producing a fiberglass dovetail according to claim 8, comprising the steps of:
(1) mixing carbon fibers, glass fibers and basalt fibers, then soaking the mixture in molten epoxy resin, cooling the mixture and pressing the mixture into a sheet shape to obtain a prepreg for later use;
(2) respectively adding the prepreg, the metal powder, the plasticizer, the curing agent, the flame retardant, the tackifier and the filler into a mold, carrying out heat preservation and curing for 1-4min at the temperature of 110-150 ℃ under the pressure of 3-7MPa, and demolding to obtain a semi-finished product;
(3) and polishing and deburring the semi-finished product to obtain the glass fiber reinforced plastic dovetail.
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