CN117565317A - Production process method of high-strength polyurethane sieve plate - Google Patents
Production process method of high-strength polyurethane sieve plate Download PDFInfo
- Publication number
- CN117565317A CN117565317A CN202311455081.XA CN202311455081A CN117565317A CN 117565317 A CN117565317 A CN 117565317A CN 202311455081 A CN202311455081 A CN 202311455081A CN 117565317 A CN117565317 A CN 117565317A
- Authority
- CN
- China
- Prior art keywords
- component
- polyurethane
- glass fiber
- sieve plate
- strength
- 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.)
- Pending
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 61
- 239000004814 polyurethane Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 239000003365 glass fiber Substances 0.000 claims abstract description 50
- 239000000243 solution Substances 0.000 claims abstract description 27
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 14
- 238000009954 braiding Methods 0.000 claims abstract description 10
- 238000010107 reaction injection moulding Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 5
- 229920005862 polyol Polymers 0.000 claims description 21
- 150000003077 polyols Chemical class 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 20
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 16
- 229920000570 polyether Polymers 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004970 Chain extender Substances 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 10
- 229920005906 polyester polyol Polymers 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 8
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 7
- 229920001451 polypropylene glycol Polymers 0.000 claims description 7
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 claims description 5
- OEOIWYCWCDBOPA-UHFFFAOYSA-N 6-methyl-heptanoic acid Chemical compound CC(C)CCCCC(O)=O OEOIWYCWCDBOPA-UHFFFAOYSA-N 0.000 claims description 5
- 238000007605 air drying Methods 0.000 claims description 5
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 5
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- ADJMNWKZSCQHPS-UHFFFAOYSA-L zinc;6-methylheptanoate Chemical compound [Zn+2].CC(C)CCCCC([O-])=O.CC(C)CCCCC([O-])=O ADJMNWKZSCQHPS-UHFFFAOYSA-L 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- RNQBCZCPNUHWLV-UHFFFAOYSA-N 1,8-dioxacyclotetradecane-2,7-dione Chemical compound O=C1CCCCC(=O)OCCCCCCO1 RNQBCZCPNUHWLV-UHFFFAOYSA-N 0.000 claims description 3
- VIOMIGLBMQVNLY-UHFFFAOYSA-N 4-[(4-amino-2-chloro-3,5-diethylphenyl)methyl]-3-chloro-2,6-diethylaniline Chemical compound CCC1=C(N)C(CC)=CC(CC=2C(=C(CC)C(N)=C(CC)C=2)Cl)=C1Cl VIOMIGLBMQVNLY-UHFFFAOYSA-N 0.000 claims description 3
- ZMKVBUOZONDYBW-UHFFFAOYSA-N 1,6-dioxecane-2,5-dione Chemical compound O=C1CCC(=O)OCCCCO1 ZMKVBUOZONDYBW-UHFFFAOYSA-N 0.000 claims description 2
- 229920006231 aramid fiber Polymers 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 229920003225 polyurethane elastomer Polymers 0.000 abstract description 6
- 239000012466 permeate Substances 0.000 abstract description 2
- -1 polyhexamethylene adipate Polymers 0.000 description 6
- 230000003301 hydrolyzing effect Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002961 polybutylene succinate Polymers 0.000 description 2
- 239000004631 polybutylene succinate Substances 0.000 description 2
- 229940083037 simethicone Drugs 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241001112258 Moca Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a production process method of a high-strength polyurethane screen plate, which belongs to the technical field of polyurethane screen plates, wherein a glass fiber wrapping layer is formed on the surface of a steel wire through a glass fiber braiding and winding machine, and then a silane coupling agent solution is smeared on the glass fiber wrapping layer, and the steel skeleton of the coupling treatment screen plate is obtained after the steel skeleton is air-dried to constant weight. And then preheating the steel skeleton of the coupling treatment sieve plate by adopting polyurethane mixture reaction injection molding, vulcanizing and post-vulcanizing to obtain the high-strength polyurethane casting sieve plate. After the glass fiber wrapping layer is adopted, polyurethane mixture can permeate into the glass fiber wrapping layer in the reaction injection molding process, so that the contact area of polyurethane elastomer is increased, the wrapping strength of glass fiber yarns is higher, and the glass fiber yarns serve as bridges between steel wires and polyurethane after wrapping, so that the peeling strength of polyurethane to the steel wires is further improved, the impact resistance of a polyurethane sieve plate is improved, and the peeling resistance of the polyurethane sieve plate is improved.
Description
Technical Field
The invention relates to the technical field of polyurethane sieve plates, in particular to a production process method of a high-strength polyurethane sieve plate.
Background
The polyurethane rubber sieve plate has the characteristics of excellent water resistance, oil resistance, wear resistance, high strength, vibration absorption, noise elimination, firm adhesion with a metal framework and the like. The self-cleaning device has good self-cleaning effect, low noise, prolonged service life of the screening machine, reduced load, energy consumption saving and high quality screening effect. However, due to erosion of the residues at the feed inlet, the strength and plasticity of the polyurethane sieve plate are weakened, so that partial irregular holes appear in the sieve plate, and the problem of material leakage of the sieve plate is further caused. In the pretreatment of the metal framework, it is necessary to treat the metal framework to ensure that the polyurethane screen panel has sufficient rigidity and strength during use. CN201610553313.9 is a new technology of waste casting polyurethane sieve plate, and has poor practical application effect. When the weight exceeds the load limit and falls vertically from a high place, the sieve plate can be crushed or deformed, the sieve beam can be damaged, the sieve surface collapses, large coal gangue can fall into the middle block system, and the middle block coal gangue can fall into the foam coal system, so that the sieving function is disabled. In addition, polyurethane sieve plate strength and hardness are insufficient, heat resistance is poor, and the ignition point of polyurethane is low, and the sieve plate ignition is easily caused if no protective measures are taken in the electric welding operation used in the production field, so that the polyurethane sieve plate is less applied to movable sieve jigs. Improving the strength of polyurethane elastomers is one of the main ways to extend the life of the screen panels. In summary, it is necessary to develop a process for producing a high strength polyurethane screen panel.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention aims to provide a production process method of a high-strength polyurethane sieve plate.
A production process method of a high-strength polyurethane sieve plate comprises the following steps: firstly, rolling wires, forming a glass fiber wrapping layer on the surface of a steel wire through a glass fiber braiding and winding machine, and welding the glass fiber wrapping layer into a sieve plate steel skeleton; coating a silane coupling agent solution on the glass fiber wrapping layer, and air-drying to constant weight to obtain a coupling treatment sieve plate steel skeleton; thirdly, preheating the steel skeleton of the coupling treatment sieve plate to 95-105 ℃, adopting polyurethane mixture reaction injection molding, vulcanizing and post-vulcanizing to obtain the high-strength polyurethane casting sieve plate.
Further, the second step of silane coupling agent solution is prepared by using an ethanol water solution with the mass fraction of 90%, regulating the pH value of the solution to 3-4, and stirringAdding gamma-aminopropyl triethoxy silane while hydrolyzing for 2-3 h to obtain the final product, wherein the consumption of the solution of the coating silane coupling agent is 55-65 g/m 2 。
Further, the first step steel wire is a Q235A steel wire.
Further, the vulcanization temperature in the third step is 90-100 ℃, the time is 0.5-1 h, the post-vulcanization temperature is 110-120 ℃, and the time is 13-15 h.
Further, the polyurethane mixture includes: a component A, a component B and a component C; the component A consists of 100 parts of polyester polyol, 15-20 parts of chain extender and 8-12 parts of fiber powder, wherein the fiber powder is one of aramid fiber powder, carbon fiber powder and glass fiber powder; the raw materials of the component A are uniformly mixed to obtain the component A; the water content of the component A is less than 0.03%; the polyester polyol is one of poly (hexamethylene adipate) glycol and poly (butylene succinate) glycol; the component B is prepared by mixing polyether polyol, 4' -dicyclohexylmethane diisocyanate and a catalyst; based on 100 weight parts of polyol, 78-83 weight parts of polyether polyol, 38-43 weight parts of 4,4' -dicyclohexylmethane diisocyanate, 0.3-0.5 weight part of bismuth isooctanoate catalyst or zinc isooctanoate, and after mixing the raw materials, reacting at 80-90 ℃ for 1-3 hours to obtain the component B, wherein the mass fraction of-NC 0 is controlled to be 3.7-3.9%; the polyether polyol is at least one of polytetramethylene ether glycol or polyoxypropylene glycol; the water content of the polyether polyol is less than 0.03%; a component B; the mass ratio of the component A to the component B to the component C is 1:0.9-1:0.1; the chain extender is at least one of 1, 4-butanediol or diethylene glycol; the component C is one of 3,3' -dichloro-4, 4' -diaminodiphenyl methane or 4,4' -methylene-bis (3-chloro-2, 6-diethylaniline).
The invention has the beneficial effects that:
the invention discloses a production process method of a high-strength polyurethane screen plate, which adopts the technical scheme that the surface of a steel wire forms a glass fiber wrapping layer through a glass fiber braiding and winding machine, and then a silane coupling agent solution is smeared on the glass fiber wrapping layer, and the steel skeleton of the coupling treatment screen plate is obtained after the steel wire is air-dried to constant weight. And then preheating the steel skeleton of the coupling treatment sieve plate to 95-105 ℃, adopting polyurethane mixture reaction injection molding, vulcanizing and post-vulcanizing to obtain the high-strength polyurethane casting sieve plate. The prior polyurethane sieve plate is in direct contact, only plays a single contact bonding role, and has lower peel strength. After the glass fiber wrapping layer is adopted, the polyurethane mixture can permeate into the glass fiber wrapping layer in the reaction injection molding process, so that the contact area of the polyurethane elastomer is increased, the previous wrapping of polyurethane and steel wires is changed into the wrapping of glass fiber yarns on the steel wires, the wrapping strength of the glass fiber yarns is higher, the glass fiber yarns serve as a bridge between the steel wires and the polyurethane after the wrapping, and the peeling strength of the polyurethane on the steel wires is further improved.
The glass fiber wrapping layer has high hardness, high strength and good overall performance, the strength of the polyurethane sieve plate is enhanced by the glass fiber wrapping layer structure, in the practical application process, before the steel wire inside the glass fiber wrapping layer is impacted and broken, the steel wire inside the glass fiber wrapping layer, the glass fiber wrapping layer outside the glass fiber wrapping layer and the polyurethane elastomer are stressed together, impact load is mainly borne by the glass fiber wrapping layer outside the steel wire and the polyurethane elastomer, and the strength attribute of the steel wire skeleton is fully exerted. According to the production process method of the high-strength polyurethane screen plate, disclosed by the invention, the glass fiber wrapping layer is arranged on the surface of the steel wire, the glass fiber wrapping layer is woven or wrapped by the steel wire, and the glass fiber of the polyurethane screen plate is reinforced, so that the impact resistance of the polyurethane screen plate is improved, and the peeling resistance of the polyurethane screen plate is improved.
Detailed Description
The invention is illustrated, but not limited, by the following specific examples.
Example 1
Raw materials: escaping ATT-KF-600F aramid powder; hunan-round M-CDEA4,4' -methylene-bis (3-chloro-2, 6-diethylaniline); luzhou Tianhua PTMEG2000 polytetramethylene ether glycol, long-range weathering factory 825-18 zinc isooctanoate, 4' -dicyclohexylmethane diisocyanate WANNATE HMDI, YA-7620 polyhexamethylene adipate glycol; Q235A steel wire; the Tianma ER2400-T626 glass fiber yarn; new material SICO-a110 of the family gamma-aminopropyl triethoxysilane;
a production process method of a high-strength polyurethane sieve plate comprises the following steps: firstly, forming a glass fiber wrapping layer on the surface of a steel wire through a glass fiber braiding winding machine after wire rolling, wherein the braiding diameter of the glass fiber wrapping layer is 4 mm through a GBG-2S16 winding machine; spindle revolution 24.8 r/min; traction speed is 40m/h; weaving the steel frame with the pitch of 8mm, and welding the steel frame into a sieve plate steel frame; secondly, coating a silane coupling agent solution on the glass fiber wrapping layer, wherein the silane coupling agent solution is prepared by using an ethanol water solution with the mass fraction of 90%, regulating the pH value of the solution to 3.5, adding SICO-A110 gamma-aminopropyl triethoxysilane while stirring, and hydrolyzing for 2.5h, and the dosage of the silane coupling agent coating solution is 60g/m 2 Air-drying to constant weight to obtain a coupling treatment sieve plate steel skeleton; thirdly, preheating the steel skeleton of the coupling treatment sieve plate to 100 ℃, and adopting polyurethane mixture reaction injection molding, wherein the polyurethane mixture comprises the following components: a component A, a component B and a component C; the weight portions are as follows: the component A comprises 100 parts of polyester polyol, 17 parts of chain extender and 10 parts of aramid powder ATT-KF-600F; the raw materials of the component A are uniformly mixed to obtain the component A; the water content of the component A is less than 0.03%; the polyester polyol is YA-7620 polyhexamethylene adipate glycol; the component B is prepared by mixing polyether polyol, M-CDEA4,4' -dicyclohexylmethane diisocyanate and a catalyst; based on 100 parts by weight of polyol, 81 parts by weight of polyether polyol, 41 parts by weight of 4,4' -dicyclohexylmethane diisocyanate and 0.4 part by weight of 825-18 zinc isooctanoate are mixed and reacted at 85 ℃ for 1 hour to obtain a component B, wherein the mass fraction of-NC 0 is controlled to be 3.8%; the polyether polyol is polytetramethylene ether glycol; the water content of the polyether polyol is less than 0.03%; a component B; the mass ratio of the component A to the component B to the component C is 1:0.95:0.1; adjusting the proportion of a metering pump of a mixing head, wherein the chain extender is 1, 4-butanediol; the component C is 4,4' -methylene-bis (3-chloro-2, 6-diethylaniline), and 5g/m of dimethyl silicone oil release agent is sprayed 2 Starting a mixing head motor of the RIM machine, starting pouring under the pressure of 10.5MPa, vulcanizing at the temperature of 95 ℃ for 0.75h, and vulcanizing at the temperature of 115 ℃ for 14h to obtain the high-strength polyurethane pouring sieve plate.
Example 2
Raw materials: carbon fiber powder with weft reaching 500 meshes; hunan garden MOCA I3, 3 '-dichloro-4, 4' -diaminodiphenyl methane; three wood chemical N210 polyoxypropylene glycol, long wind mill 825-12 zinc isooctanoate, 4' -dicyclohexylmethane diisocyanate Wanhua H1210, polybutylene succinate glycol PBA-2000 Huada CMA-44; Q235A steel wire; triple epitaxial ECDR17-1200-SL830; ji Quangong trade ZQ-550 gamma-aminopropyl triethoxysilane.
A production process method of a high-strength polyurethane sieve plate comprises the following steps: firstly, forming a glass fiber wrapping layer on the surface of a steel wire through a glass fiber braiding and winding machine after wire rolling, wherein the SKC-36-4S winding machine comprises a4 disc, 36 spindle numbers, a main shaft rotating speed of 90r/min, a glass fiber yarn winding angle of 55.73 degrees, a traction speed of 7 m/min and a spool tension of 13N; winding diameter 8mm, winding disc revolution 90r/min and winding pitch 17mm, and welding the steel frame into a sieve plate steel frame; coating a silane coupling agent solution on the glass fiber wrapping layer, wherein the silane coupling agent solution is prepared by using an ethanol water solution with the mass fraction of 90%, regulating the pH value of the solution to 3, adding ZQ-550 gamma-aminopropyl triethoxysilane while stirring, and hydrolyzing for 3 hours, and the dosage of the silane coupling agent coating solution is 55g/m 2 Air-drying to constant weight to obtain a coupling treatment sieve plate steel skeleton; thirdly, preheating the steel skeleton of the coupling treatment sieve plate to 95 ℃, and adopting polyurethane mixture reaction injection molding, wherein the polyurethane mixture comprises the following components: a component A, a component B and a component C; the weight portions are as follows: the component A comprises 100 parts of polyester polyol, 15 parts of chain extender and 8 parts of carbon fiber powder; the raw materials of the component A are uniformly mixed to obtain the component A; the water content of the component A is less than 0.03%; the polyester polyol is CMA-44 polybutylene succinate glycol; the component B is prepared by mixing N210 polyoxypropylene glycol, 4' -dicyclohexylmethane diisocyanate and a catalyst; based on 100 parts by weight of polyol, 78 parts by weight of N210 polyoxypropylene glycol, 38 parts by weight of 4,4' -dicyclohexylmethane diisocyanate and 0.3 part by weight of bismuth isooctanoate catalyst, mixing the raw materials, and reacting at 80 ℃ for 3 hours to obtain a component B, wherein the mass fraction of-NC 0 is controlled to be 3.7%; polyether polyol N210 polyoxypropylene diol; the water content of the N210 polyoxypropylene glycol is less than 0.03%; a component B; a component A,The mass ratio of the component B to the component C is 1:0.9:0.1; adjusting the proportion of a metering pump of a mixing head, wherein the chain extender is diethylene glycol; the component C is 3,3 '-dichloro-4, 4' -diaminodiphenyl methane, and 5g/m of simethicone release agent is sprayed 2 Starting a mixing head motor of the RIM machine, starting pouring under the pressure of 10.5MPa, vulcanizing at 90 ℃ for 0.5h, and vulcanizing at 110 ℃ for 15h to obtain the high-strength polyurethane pouring sieve plate.
Example 3
Jieshiz 800 mesh alkali-free glass fiber powder. Starlight MOCA3,3 '-dichloro-4, 4' -diaminodiphenyl methane. PTMEG2000 polytetramethylene ether glycol, shanghai Zhenzhi bismuth isooctanoate, 4' -dicyclohexylmethane diisocyanate Wanhua H1210, polyhexamethylene adipate glycol YA-7630, Q235A steel wire; glass fiber yarn of Jiuding HCR 9029-2400-17; constant to chemical KH-550.
A production process method of a high-strength polyurethane sieve plate comprises the following steps: forming a glass fiber wrapping layer on the surface of a steel wire through a glass fiber braiding winding machine after wire rolling, wherein the number of spindles of the GBM-16 winding machine is 16, the revolution of the spindles is 40 r/min, the traction speed is 13.7m/h, the braiding diameter is 3.2mm, and the braiding pitch is 6mm, and then welding the steel wire into a sieve plate steel skeleton; coating a silane coupling agent solution on the glass fiber wrapping layer, wherein the silane coupling agent solution is prepared by using an ethanol water solution with the mass fraction of 90%, regulating the pH value of the solution to 4, adding KH-550 gamma-aminopropyl triethoxysilane while stirring, and hydrolyzing for 3 hours, and the dosage of the silane coupling agent coating solution is 65g/m 2 Air-drying to constant weight to obtain a coupling treatment sieve plate steel skeleton; thirdly, preheating the steel skeleton of the coupling treatment sieve plate to 105 ℃, and adopting polyurethane mixture reaction injection molding, wherein the polyurethane mixture comprises the following components: a component A, a component B and a component C; the weight portions are as follows: the component A comprises 100 parts of polyester polyol, 20 parts of chain extender and 12 parts of glass fiber powder; the raw materials of the component A are uniformly mixed to obtain the component A; the water content of the component A is less than 0.03%; the polyester polyol is poly (hexamethylene adipate) glycol; the component B is prepared by mixing polyether polyol PTMEG2000, 4' -dicyclohexylmethane diisocyanate and catalystThe method comprises the steps of carrying out a first treatment on the surface of the 83 parts of polyether polyol, 43 parts of 4,4' -dicyclohexylmethane diisocyanate and a bismuth isooctanoate catalyst by taking 100 parts of polyol by weight, and after mixing the raw materials, reacting at 90 ℃ for 3 hours to obtain a component B, wherein the mass fraction of-NC 0 is controlled to be 3.9%; the polyether polyol is polytetramethylene ether glycol PTMEG2000; the water content of the PTMEG2000 is less than 0.03%; a component B; the mass ratio of the component A to the component B to the component C is 1:1:0.1; adjusting the proportion of a metering pump of a mixing head, wherein the chain extender is 1, 4-butanediol; the component C is 3,3 '-dichloro-4, 4' -diaminodiphenyl methane, and 10g/m of simethicone release agent is sprayed 2 Starting a mixing head motor of the RIM machine, starting pouring under the pressure of 10.5MPa, vulcanizing at the vulcanizing temperature of 100 ℃ for 1h, and vulcanizing at the vulcanizing temperature of 120 ℃ for 13h to obtain the high-strength polyurethane pouring sieve plate.
The polyurethane sieve plates obtained in examples 1 to 3 were subjected to further performance tests, and the results of the performance tests are shown in Table 1
Table 1 results of polyurethane screening panel performance tests of examples 1-3
Note that: refer to GB/T33091-2016 polyurethane screen plate.
Claims (5)
1. The production process of the high-strength polyurethane sieve plate is characterized by comprising the following steps of: firstly, rolling wires, forming a glass fiber wrapping layer on the surface of a steel wire through a glass fiber braiding and winding machine, and welding the glass fiber wrapping layer into a sieve plate steel skeleton; coating a silane coupling agent solution on the glass fiber wrapping layer, and air-drying to constant weight to obtain a coupling treatment sieve plate steel skeleton; thirdly, preheating the steel skeleton of the coupling treatment sieve plate to 95-105 ℃, adopting polyurethane mixture reaction injection molding, vulcanizing and post-vulcanizing to obtain the high-strength polyurethane casting sieve plate.
2. The process for producing a high strength polyurethane screen panel according to claim 1, wherein the secondThe silane coupling agent solution is obtained by using 90% ethanol water solution by mass fraction, regulating the pH value of the solution to 3-4, adding gamma-aminopropyl triethoxysilane while stirring for hydrolysis for 2-3 h, and the consumption of the silane coupling agent solution is 55-65 g/m 2 。
3. The process for producing a high-strength polyurethane screen panel according to claim 1, wherein the first step steel wire is a Q235A steel wire.
4. The process for producing a high-strength polyurethane screen panel according to claim 1, wherein the third step has a vulcanization temperature of 90 to 100 ℃ for 0.5 to 1 hour, a post-vulcanization temperature of 110 to 120 ℃ for 13 to 15 hours.
5. The process for producing a high strength polyurethane screen panel according to claim 1, wherein the polyurethane mixture comprises: a component A, a component B and a component C; the weight portions are as follows: the component A consists of 100 parts of polyester polyol, 15-20 parts of chain extender and 8-12 parts of fiber powder, wherein the fiber powder is one of aramid fiber powder, carbon fiber powder and glass fiber powder; the raw materials of the component A are uniformly mixed to obtain the component A; the water content of the component A is less than 0.03%; the polyester polyol is one of poly (hexamethylene adipate) glycol and poly (butylene succinate) glycol; the component B is prepared by mixing polyether polyol, 4' -dicyclohexylmethane diisocyanate and a catalyst; based on 100 weight parts of polyol, 78-83 weight parts of polyether polyol, 38-43 weight parts of 4,4' -dicyclohexylmethane diisocyanate, 0.3-0.5 weight part of bismuth isooctanoate catalyst or zinc isooctanoate, and after mixing the raw materials, reacting at 80-90 ℃ for 1-3 hours to obtain the component B, wherein the mass fraction of-NC 0 is controlled to be 3.7-3.9%; the polyether polyol is at least one of polytetramethylene ether glycol or polyoxypropylene glycol; the water content of the polyether polyol is less than 0.03%; a component B; the mass ratio of the component A to the component B to the component C is 1:0.9-1:0.1; the chain extender is at least one of 1, 4-butanediol or diethylene glycol; the component C is one of 3,3' -dichloro-4, 4' -diaminodiphenyl methane or 4,4' -methylene-bis (3-chloro-2, 6-diethylaniline).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311455081.XA CN117565317A (en) | 2023-11-03 | 2023-11-03 | Production process method of high-strength polyurethane sieve plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311455081.XA CN117565317A (en) | 2023-11-03 | 2023-11-03 | Production process method of high-strength polyurethane sieve plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117565317A true CN117565317A (en) | 2024-02-20 |
Family
ID=89863434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311455081.XA Pending CN117565317A (en) | 2023-11-03 | 2023-11-03 | Production process method of high-strength polyurethane sieve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117565317A (en) |
-
2023
- 2023-11-03 CN CN202311455081.XA patent/CN117565317A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101445583A (en) | Preparation process of polyurethane modified epoxy resin suitable for composite wear-resistant coating material | |
| CN101220241A (en) | Double-component high-strength polyurethane waterproof coating material | |
| CN101987940A (en) | Method for preparing high-performance single-component polyurethane waterproof coating | |
| CN114163970B (en) | High-strength anti-aging single-component modified sealant for bonding rubber and plastic composite materials and preparation method thereof | |
| CN1539628A (en) | Green tyre in composite structure between wheel track of polyurethane and tyre core of rubber, and fabricating method | |
| CN1814682A (en) | Anti-corrosion coating layer for water pump, water pump containing same and construction method therefor | |
| CN117565317A (en) | Production process method of high-strength polyurethane sieve plate | |
| CN1189498C (en) | Hard polyurethane casting material | |
| CN111423717B (en) | Floating body material for waterborne photovoltaic system and preparation method thereof | |
| CN100535041C (en) | Rubber wringing roller surface material added with nano material and production method of wringing roller | |
| CN102504683B (en) | Aliphatic polyurethane elastic surface layer for high-speed railway and preparation method thereof | |
| CN111749079B (en) | Wear-resistant plastic track and construction method thereof | |
| CN107556455A (en) | Combination material for polyurethane inflation-free inner tyre and preparation method thereof | |
| CN114231019B (en) | Polyurethane tire of high wear-resistant and corrosion-resistant floor washing machine | |
| CN110671543A (en) | Corrosion-resistant pipeline and forming method thereof | |
| CN116082602A (en) | Polyurethane modified material with excellent rain erosion resistance and weather resistance, and preparation method and application thereof | |
| CN113388244B (en) | Thermoplastic polyurethane elastomer composite material with interface self-repairing function and preparation method thereof | |
| CN101602915A (en) | Polyurethane water-proof paint of environment-friendly and high-performance inierpeneirating network structure and preparation method thereof | |
| CN112980301B (en) | Super-strong explosion-proof impact-resistant composite coating and preparation method thereof | |
| CN114231151A (en) | Wear-resistant coating agent for oil pipe and preparation method of coating layer of wear-resistant coating agent | |
| CN112143367A (en) | Wind power blade leading edge protective material and preparation method and application thereof | |
| CN115926605B (en) | Spray film material, preparation method and application thereof | |
| CN111004365A (en) | Preparation method of solvent-free acid and alkali resistant floor material | |
| CN117124525B (en) | Preparation method of fatigue-resistant polyurethane microporous elastomer backing plate | |
| CN110862512A (en) | Biomass particle composite polyurethane elastomer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |