CN103030922B - Water-soluble phenolic resin solution for woven friction materials and preparation method thereof - Google Patents
Water-soluble phenolic resin solution for woven friction materials and preparation method thereof Download PDFInfo
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Abstract
The invention provides a water-soluble phenolic resin solution for woven friction materials and a preparation method thereof. According to the water-soluble phenolic resin solution, polyvinyl alcohol, nano attapulgite and micro copper powder are utilized to modify the water-soluble phenolic resin. In the synthesis technique of the water-soluble phenolic resin solution, a small amount of polyvinyl alcohol is added to enhance the water solubility, bonding property and toughness of the resin; and meanwhile, the nano attapulgite and micro copper powder granules are added to enhance the heat resistance and wear resistance of the resin and also further improve the toughness. When being used as a bonding agent for preparing the woven friction material, the water-soluble phenolic resin solution has the advantages of low cost and low environmental pollution, can enhance the bonding property of fibers and other materials with slurry so as to prevent the slurry from falling off the material surface, can enhance the high temperature resistance and frictional resistance of the friction material, and effectively avoids reduction of the friction factor due to the thermal decomposition of the resin.
Description
Technical field
The present invention relates to water soluble phenol resin technical field, concrete water soluble phenol resin caking agent and preparation method thereof for a kind of Weaving type friction materials.
Background technology
The Weaving type such as brake facing or clutch surface friction materials in automobile and other mechanical means is generally made up of binding agent, fortifying fibre, filler etc., its preparation technology generally adopts wet processing, first by the caking agent organic solvent dissolution of resin and rubber composition, add filler to be prepared into slurry, again by fortifying fibre dipping sizing agent, after drying, braiding shaping base then, by hot-forming shape base, obtains friction materials goods after the aftertreatments such as hot setting, polishing and boring.
In above-mentioned preparation technology, in the time using soluble phenolic resin to prepare slurry, need to use a large amount of organic solvents, in addition for the adhesiveproperties that improves slurry need to use a certain amount of rubber.But the use of organic solvent and rubber can improve production cost, volatilization and the inflammable and explosive performance of organic solvent constitute a threat to production safety simultaneously.Therefore, often use water soluble phenol resin to replace soluble phenolic resin, to avoid the use of organic solvent and rubber.But, the decomposition temperature of water soluble phenol resin is 250 DEG C of left and right, thermotolerance is lower, and in friction process, the temperature of compiling friction material surface is higher, easily decomposes at this high-temperature region water soluble phenol resin, and the material of decomposition forms one deck gaseous state or liquid film in friction material surface, cause the frictional coefficient of friction materials to reduce, when serious, the safe operation of vehicle and other mechanical means is formed to larger threat; In addition, because water soluble phenol resin fragility is large, be prone to the phenomenon that slurry comes off from fiber surface after to be dried with the standby slurry impregnation of fibers of water-soluble phenolic resin-made.
The defects such as thermotolerance deficiency, fragility is large that exist in order to overcome water soluble phenol resin, need to carry out modification to water soluble phenol resin, to improve its thermotolerance and toughness, thereby meet the actual needs of friction materials.
Summary of the invention
Technical purpose of the present invention be for above-mentioned using water soluble phenol resin as prepare Weaving type friction materials binding agent time existing deficiency, a kind of water-soluble phenol resin solution of Weaving type friction materials of modification is provided, the water soluble phenol resin solution cost of this modification is low, thermotolerance and toughness are greatly improved, can replace soluble phenolic resin as the binding agent of preparing Weaving type friction materials, not only save a large amount of organic solvents, and reduced cost, reduce the pollution of environment.
The water-soluble phenol resin solution of a kind of Weaving type friction materials, is made up of phenolic resin aqueous solution, nano level attapulgite and the Micron-Sized Copper Powders Coated of polyvinyl alcohol modification; According to mass fraction meter, the phenolic resin aqueous solution of described polyvinyl alcohol modification is by the formalin of the phenol of 100 mass parts, 110 ~ 120 mass parts, the polyvinyl alcohol of 1 ~ 20 mass parts, and the basic catalyst hybrid reaction of 4 ~ 10 mass parts forms, wherein the mass percent concentration of formalin is 30% ~ 45%; Be 100 mass fraction meters according to phenol content in the phenolic resin aqueous solution of polyvinyl alcohol modification, described nano level attapulgite content is 1 ~ 4 mass parts, and Micron-Sized Copper Powders Coated content is 1 ~ 2 mass parts.
Wherein, basic catalyst includes but not limited to one or several in ammoniacal liquor, hexamethylenetetramine, sodium carbonate, amine, basic metal, alkaline earth metal oxide etc.Due to alkaline earth metal oxide, the alkalescence of such as sodium hydroxide, hydrated barta etc. is stronger, under its katalysis, the methylolation addition reaction speed of phenol and formaldehyde is fast, in resultant, be rich in methylol, and there is stronger polarity, water-soluble also better, therefore preferred bases soil metal oxide is as basic catalyst.
The polymerization degree of polyvinyl alcohol is preferably 1000 ~ 2000.
The mass percent concentration of formalin is preferably 35% ~ 40%.
The particle diameter of Micron-Sized Copper Powders Coated is preferably 0.5um ~ 2um.
Nano level attapulgite length is preferably 0.5um ~ 5um, and width is preferably 15nm ~ 30nm.
As preferably, the solid content of the water soluble phenol resin solution of described modification is 60 ~ 67%, and the dissolving each other than being 1:1 ~ 1:14 of water.
The Weaving type friction materials of modification of the present invention can be by obtaining the phenolic resin aqueous solution of polyvinyl alcohol modification, nano level attapulgite and Micron-Sized Copper Powders Coated blend with water-soluble phenol resin solution, as preferably, the preparation method that the present invention adopts comprises the following steps:
Step 1, by the phenol of 100 mass parts, the basic catalyst of the polyvinyl alcohol of 1 ~ 20 part and 4 ~ 10 mass parts joins in reaction vessel, is warming up to 60 ~ 75 DEG C, stirring reaction 10 ~ 25 minutes;
Step 2, the formaldehyde solution of 110 ~ 120 mass parts is joined in reaction vessel, be warming up to 80 ~ 100 DEG C, stirring reaction 35 ~ 50 minutes;
Step 3, stop heating, after temperature is reduced to below 50 DEG C, the nano level attapulgite of 1 ~ 4 mass parts and 1 ~ 2 mass parts Micron-Sized Copper Powders Coated particle are joined in reaction vessel, stir 20 ~ 30 minutes;
Step 4, stop stirring, collect reaction soln, be placed in that ultrasonic wave diverting device is ultrasonic to be uniformly dispersed.
Above-mentioned used phenol purity is preferably more than 98.5%.
Above-mentioned used polyvinyl alcohol is preferably used water-soluble swollen 4 ~ 10 hours of 5 ~ 10 mass parts before use.
In above-mentioned steps 4, ultrasonic frequency is preferably 45Hz ~ 100Hz; When ultrasonic dispersion, temperature is preferably controlled between 30 DEG C ~ 50 DEG C, and ultrasonic jitter time is preferably 60 minutes ~ and 120 minutes.
In sum, the present invention adopts polyvinyl alcohol, nano level attapulgite and the multiple modified water soluble phenol resin of Micron-Sized Copper Powders Coated, has following beneficial effect:
(1) in water soluble phenol resin building-up process, add a part of polyvinyl alcohol, form the phenolic resin aqueous solution of polyvinyl alcohol modification, owing to containing a certain amount of hydroxyl on polyvinyl alcohol molecule chain, improve the solvability of resol in water, and increased the adhesive property of resol as binding agent and fiber etc., the polycondensation formation intrinsic toughening structure in curing process of the methylol in this part hydroxyl and resol has also improved the toughness of resol effectively simultaneously; In addition, because the add-on of polyvinyl alcohol is less, less on the thermotolerance impact of resol;
(2) in the phenolic resin aqueous solution of polyvinyl alcohol modification, add nano-attapulgite, because nano-attapulgite can form a large amount of physical crosslinking points with phenolic resin as matrix resin, improved the thermotolerance of resin, also further strengthened its toughness simultaneously; In addition, nano level attapulgite has stronger absorption property, the small-molecule substance that the friction materials making as binding agent using the water soluble phenol resin aqueous solution of this modification in use produces can be adsorbed by nano level attapulgite, thereby effectively reduce gaseous state or liquid film that friction surface forms, improved the heat resistanceheat resistant decline performance of resol resin.
(3) Micron-Sized Copper Powders Coated is dispersed in the phenolic resin aqueous solution of polyvinyl alcohol modification, has improved the wear resisting property of resin, further strengthened resin toughness simultaneously.
Therefore, the water soluble phenol resin solution of modification of the present invention has effectively improved the solvability of resol in water, and the cohesiveness of resol, toughness, thermotolerance, anti-character of heat-fading and wear resistance.Water soluble phenol resin solution using modification of the present invention is prepared Weaving type friction materials as binding agent, not only cost is low, environmental pollution is little, and can effectively improve the cohesiveness of fiber and other material and slurry, the phenomenon of avoiding slurry to come off from fiber surface, can effectively improve resistance to elevated temperatures and the crocking resistance of Weaving type friction materials, effectively avoid the phenomenon that causes frictional coefficient to reduce because of resin thermolysis simultaneously.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, it is pointed out that the following stated embodiment is intended to be convenient to the understanding of the present invention, and it is not played to any restriction effect.
Embodiment 1:
In the present embodiment, the water soluble phenol resin solution of modification, is made up of phenolic resin aqueous solution, nano level attapulgite and the Micron-Sized Copper Powders Coated of polyvinyl alcohol modification; According to mass fraction meter, the formalin that the phenolic resin aqueous solution of polyvinyl alcohol modification is is 37% by the phenol of 100 mass parts, 115 mass parts mass percent concentrations, the polyvinyl alcohol that the 5 mass parts polymerization degree are 1700, and the basic catalyst NaOH hybrid reaction of 5 mass parts forms; Be 100 mass fraction meters according to phenol content in the phenolic resin aqueous solution of polyvinyl alcohol modification, containing long is 0.5um ~ 5um, and wide is nano level attapulgite 2 mass parts of 15nm ~ 30nm, Micron-Sized Copper Powders Coated 1 mass parts that particle diameter is 0.5um ~ 2um.
The preparation method of the water soluble phenol resin solution of above-mentioned modification comprises the steps:
(1), by 5 mass parts, the polyvinyl alcohol that the polymerization degree is 1700 is placed in reaction vessel with the NaOH of 100 mass parts phenol and 5 mass parts after adding water-soluble swollen 5 hours of 8 mass parts simultaneously, is warming up to 70 DEG C, stirring reaction 20 minutes;
(2) formaldehyde solution of 115 mass parts is joined in reaction vessel, be warming up to 92 DEG C, stirring reaction 45 minutes;
(3) stop heating, treat that solution temperature is reduced in 50 DEG C of backward reaction vessels and add the nano level attapulgite of 2 mass parts and the Micron-Sized Copper Powders Coated of 1 mass parts, stir 20 minutes;
(4) after stopping stirring, collect reacted solution and be placed in ultrasonic unit, temperature is controlled at 40 DEG C of left and right, and under 45Hz frequency, ultrasonic wave is disperseed 90 minutes, obtains the water soluble phenol resin solution of modification.
The solid content of the water soluble phenol resin solution of above-mentioned modification is 62.5%, can be dissolved in the water of 8 times of its quality.Thermal weight loss test result shows, at 5%, 435 DEG C of its thermal weight loss 10% of 342 DEG C of its thermal weight losses.
Water soluble phenol resin solution using above-mentioned modification is prepared car clutch face sheet as binding agent, and concrete preparation method is as follows:
Preparation slurry: Modified Water Soluble Phenolic Resin 32 mass parts, barite 13 mass parts, chromite powder 14 mass parts, graphite 4 mass parts, carbon black 5 mass parts, zeolite 6 mass parts, aluminum oxide 2 mass parts, Wingdale 6 mass parts; By continuous blend fiber dipping sizing agent, then at 85 DEG C, dry after 80 minutes and be wound around and become parison; Parison after being wound around is put into hot-die hot-forming, temperature is 160 DEG C, and pressure is 20MPa, 5 minutes press times; Dough sheet after hot pressing is inserted to 180 DEG C of baking ovens, thermal treatment 8 hours, the processing of polishing after cooling, boring obtains clutch surface flake products.
In above-mentioned preparation process, firmly, there is not the phenomenon that slurry comes off from fiber surface after drying in slurry impregnation of fibers for blend fiber and slurry bonding.
Adopt constant speed formula trier, according to GB/T5764-2011 standard, above-mentioned clutch surface is tested, friction and wear behavior is as shown in table 1 below, this clutch surface stable friction factor of surface, wear rate is low, under the condition of 350 DEG C, still have stable frictional coefficient and lower abrasion, quality product meets relevant national standard completely.
Embodiment 2:
In the present embodiment, the water soluble phenol resin solution of modification, is made up of phenolic resin aqueous solution, nano level attapulgite and the Micron-Sized Copper Powders Coated of polyvinyl alcohol modification; According to mass fraction meter, the formalin that the phenolic resin aqueous solution of polyvinyl alcohol modification is is 37% by the phenol of 100 mass parts, 118 mass parts mass percent concentrations, the polyvinyl alcohol that the 6 mass parts polymerization degree are 1750, and the basic catalyst Ba(OH of 8 mass parts) 2 hybrid reactions form; Be 100 mass fraction meters according to phenol content in the phenolic resin aqueous solution of polyvinyl alcohol modification, containing long is 0.5um ~ 5um, and wide is nano level attapulgite 1.5 mass parts of 15nm ~ 30nm, Micron-Sized Copper Powders Coated 2 mass parts that particle diameter is 0.5um ~ 2um.
The preparation method of the water soluble phenol resin solution of above-mentioned modification comprises the steps:
(1) by 6 mass parts, the polyvinyl alcohol that the polymerization degree is 1750, adds behind water-soluble swollen 5 hours of 9 mass parts the Ba(OH with 100 mass parts phenol and 8 mass parts)
2be placed in reaction vessel simultaneously, be warming up to 65 DEG C, stirring reaction 25 minutes;
(2) formaldehyde solution of 118 mass parts is joined in reaction vessel, be warming up to 90 DEG C, stirring reaction 50 minutes;
(3) stop heating, treat that solution temperature is reduced in 50 DEG C of backward reaction vessels and add the nano level attapulgite of 1.5 mass parts and the Micron-Sized Copper Powders Coated of 1 mass parts, stir 25 minutes;
(4) after stopping stirring, collect reacted solution and be placed in ultrasonic unit, temperature is controlled at 45 DEG C of left and right, and under 45Hz frequency, ultrasonic wave is disperseed 100 minutes, obtains Modified Water Soluble Phenolic Resin.
The solid content of the water soluble phenol resin solution of above-mentioned modification is 60.8%, can be dissolved in the water of 12 times of its quality.Thermal weight loss test result shows, at 5%, 426 DEG C of its thermal weight loss 10% of 322 DEG C of its thermal weight losses.
Water soluble phenol resin solution using above-mentioned modification is prepared car clutch face sheet as binding agent, and concrete preparation method is as follows:
Preparation slurry: 30 parts of Modified Water Soluble Phenolic Resin, 14 parts, barite, 15 parts of chromite powders, 6 parts, graphite, 5.5 parts of carbon blacks, 4 parts, zeolite, 2.5 parts, aluminum oxide, 5 parts, Wingdale; By continuous blend fiber dipping sizing agent, then at 90 DEG C, dry after 60 minutes and be wound around and become parison; Parison after being wound around is put into hot-die hot-forming, temperature is 165 DEG C, and pressure is 20MPa, 6 minutes press times; Dough sheet after hot pressing is inserted to 200 DEG C of baking ovens, thermal treatment 6 hours, the processing of polishing after cooling, boring obtains clutch surface flake products.
In above-mentioned preparation process, firmly, there is not the phenomenon that slurry comes off from fiber surface after drying in slurry impregnation of fibers for blend fiber and slurry bonding.
Adopt constant speed formula trier, according to GB/T5764-2011 standard, above-mentioned clutch surface is tested, friction and wear behavior is as shown in table 1 below, this clutch surface stable friction factor of surface, wear rate is low, under the condition of 350 DEG C, still have stable frictional coefficient and lower abrasion, quality product meets relevant national standard completely.
Embodiment 3:
In the present embodiment, the water soluble phenol resin solution of modification, is made up of phenolic resin aqueous solution, nano level attapulgite and the Micron-Sized Copper Powders Coated of polyvinyl alcohol modification; According to mass fraction meter, the formalin that the phenolic resin aqueous solution of polyvinyl alcohol modification is is 37% by the phenol of 100 mass parts, 112 mass parts mass percent concentrations, the polyvinyl alcohol that the 4 mass parts polymerization degree are 1500, and the basic catalyst NaOH hybrid reaction of 8 mass parts forms; Be 100 mass fraction meters according to phenol content in the phenolic resin aqueous solution of polyvinyl alcohol modification, containing long is 0.5um ~ 5um, and wide is nano level attapulgite 1 mass parts of 15nm ~ 30nm, Micron-Sized Copper Powders Coated 1.5 mass parts that particle diameter is 0.5um ~ 2um.
The preparation method of the water soluble phenol resin solution of above-mentioned modification comprises the steps:
(1), by 4 mass parts, the polyvinyl alcohol that the polymerization degree is 1500 is placed in reaction vessel with the NaOH of 100 mass parts phenol and 6 mass parts after adding water-soluble swollen 5 hours of 8 mass parts simultaneously, is warming up to 75 DEG C, stirring reaction 25 minutes;
(2) formaldehyde solution of 112 mass parts is joined in reaction vessel, be warming up to 95 DEG C, stirring reaction 40 minutes;
(3) stop heating, treat that solution temperature is reduced in 50 DEG C of backward reaction vessels and add the nano level attapulgite of 1 mass parts and the Micron-Sized Copper Powders Coated of 1.5 mass parts, stir 30 minutes;
(4) after stopping stirring, collect reacted solution and be placed in ultrasonic unit, temperature is controlled at 35 DEG C of left and right, and under 45Hz frequency, ultrasonic wave is disperseed 120 minutes, obtains Modified Water Soluble Phenolic Resin.
The solid content of the water soluble phenol resin solution of above-mentioned modification is 66.0%, can be dissolved in the water of 7 times of its quality.Thermal weight loss test result shows, at 5%, 446 DEG C of its thermal weight loss 10% of 350 DEG C of its thermal weight losses.
Water soluble phenol resin solution using above-mentioned modification is prepared car clutch face sheet as binding agent, and concrete preparation method is as follows:
Preparation slurry: 33 parts of Modified Water Soluble Phenolic Resin, 12 parts, barite, 16 parts of chromite powders, 6 parts, graphite, 5 parts of carbon blacks, 5 parts, zeolite, 2 parts, aluminum oxide, 3 parts, Wingdale; By continuous blend fiber dipping sizing agent, then at 85 DEG C, dry after 90 minutes and be wound around and become parison; Parison after being wound around is put into hot-die hot-forming, temperature is 160 DEG C, and pressure is 25MPa, 6 minutes press times; Dough sheet after hot pressing is inserted to 220 DEG C of baking ovens, thermal treatment 5 hours, the processing of polishing after cooling, boring obtains clutch surface flake products.
In above-mentioned preparation process, firmly, there is not the phenomenon that slurry comes off from fiber surface after drying in slurry impregnation of fibers for blend fiber and slurry bonding.
Adopt constant speed formula trier, according to GB/T5764-2011 standard, above-mentioned clutch surface is tested, friction and wear behavior is as shown in table 1 below, this clutch surface stable friction factor of surface, wear rate is low, under the condition of 350 DEG C, still have stable frictional coefficient and lower abrasion, quality product meets relevant national standard completely.
Table 1: adopt constant speed formula trier, clutch surface above-described embodiment 1-3 being prepared according to GB/T5764-2011 standard is tested the friction and wear behavior table obtaining
Above-described embodiment has been described in detail technical scheme of the present invention; be understood that and the foregoing is only specific embodiments of the invention; be not limited to the present invention; all any amendments of making within the scope of principle of the present invention, supplement or similar fashion substitute etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the water-soluble phenol resin solution of Weaving type friction materials, is characterized in that: phenolic resin aqueous solution, nano level attapulgite and Micron-Sized Copper Powders Coated by polyvinyl alcohol modification form;
According to mass fraction meter, the phenolic resin aqueous solution of described polyvinyl alcohol modification is by the formalin of the phenol of 100 mass parts, 110～120 mass parts, the polyvinyl alcohol of 1～20 mass parts, and the basic catalyst hybrid reaction of 4～10 mass parts forms, wherein the mass percent concentration of formalin is 30%～45%;
Be 100 mass fraction meters according to phenol content in the phenolic resin aqueous solution of polyvinyl alcohol modification, described nano level attapulgite content is 1～4 mass parts, and Micron-Sized Copper Powders Coated content is 1～2 mass parts.
2. the water-soluble phenol resin solution of Weaving type friction materials according to claim 1, is characterized in that: described basic catalyst comprises one or several in ammoniacal liquor, sodium carbonate, amine, basic metal, alkaline earth metal oxide.
3. the water-soluble phenol resin solution of Weaving type friction materials according to claim 1, is characterized in that: described basic catalyst comprises sodium hydroxide or hydrated barta.
4. the water-soluble phenol resin solution of Weaving type friction materials according to claim 1, is characterized in that: the polymerization degree of described polyvinyl alcohol is 1000～2000.
5. the water-soluble phenol resin solution of Weaving type friction materials according to claim 1, is characterized in that: the solid content of described water soluble phenol resin solution is 60%～67%.
6. the preparation method of water-soluble phenol resin solution for Weaving type friction materials according to claim 1, is characterized in that: comprise the steps:
Step 1, by the phenol of 100 mass parts, the basic catalyst of the polyvinyl alcohol of 1～20 mass parts and 4～10 mass parts joins in reaction vessel, is warming up to 60～75 DEG C, stirring reaction 10～25 minutes;
Step 2, the formaldehyde solution of 110～120 mass parts is joined in reaction vessel, be warming up to 80～100 DEG C, stirring reaction 35～60 minutes;
Step 3, stop heating, after temperature is reduced to below 50 DEG C, the nano level attapulgite of 1～4 mass parts and 1～2 mass parts Micron-Sized Copper Powders Coated particle are joined in reaction vessel, stir 20～30 minutes;
Step 4, stop stirring, collect reaction soln, be placed in that ultrasonic wave diverting device is ultrasonic to be uniformly dispersed.
7. the preparation method of water-soluble phenol resin solution for Weaving type friction materials according to claim 6, is characterized in that: described phenol purity is more than 98.5%.
8. the preparation method of water-soluble phenol resin solution for Weaving type friction materials according to claim 6, is characterized in that: described polyvinyl alcohol is used water-soluble swollen 4～10 hours of 5～10 mass parts before use.
9. the preparation method of water-soluble phenol resin solution for Weaving type friction materials according to claim 6, is characterized in that: in described step 4, ultrasonic frequency is 45Hz～100Hz.
10. the preparation method of water-soluble phenol resin solution for Weaving type friction materials according to claim 6, is characterized in that: in described step 4, when ultrasonic dispersion, temperature is controlled between 30 DEG C～50 DEG C, and ultrasonic jitter time is 60 minutes～120 minutes.
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| CN106567897B (en) * | 2016-11-13 | 2019-04-16 | 青岛方冠摩擦材料有限公司 | A kind of preparation method of NEW TYPE OF COMPOSITE wear brake pad |
| CN107035800B (en) * | 2017-04-21 | 2020-02-07 | 来安县隆华摩擦材料有限公司 | Preparation method of high-wear-resistance and high-heat-resistance automobile clutch facing |
| CN110157146A (en) * | 2019-05-10 | 2019-08-23 | 上海应用技术大学 | A kind of modifying phenolic resin composition and preparation method thereof |
| CN112852360B (en) * | 2021-01-12 | 2022-07-29 | 天津市盛世德新材料科技有限公司 | Nano magnesium hydroxide reinforced phenolic resin adhesive for impregnated paper and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285512A (en) * | 2008-05-09 | 2008-10-15 | 海盐华强树脂有限公司 | Production method for clutch surface adopting formaldehyde-phenol resin as cementing compound |
| CN101613516A (en) * | 2008-06-26 | 2009-12-30 | 比亚迪股份有限公司 | Be used to prepare the friction material composition and the friction materials of brake facing |
| CN102627927A (en) * | 2012-03-26 | 2012-08-08 | 黑龙江省科学院石油化学研究院 | Medium temperature curing high temperature resistant phenolic adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285512A (en) * | 2008-05-09 | 2008-10-15 | 海盐华强树脂有限公司 | Production method for clutch surface adopting formaldehyde-phenol resin as cementing compound |
| CN101613516A (en) * | 2008-06-26 | 2009-12-30 | 比亚迪股份有限公司 | Be used to prepare the friction material composition and the friction materials of brake facing |
| CN102627927A (en) * | 2012-03-26 | 2012-08-08 | 黑龙江省科学院石油化学研究院 | Medium temperature curing high temperature resistant phenolic adhesive |
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Application publication date: 20130410 Assignee: Ningbo fengdongcheng friction material Co.,Ltd. Assignor: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES Contract record no.: X2023980035512 Denomination of invention: A water-soluble phenolic resin solution for woven friction material and its preparation method Granted publication date: 20140611 License type: Common License Record date: 20230515 |
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