CN117209715B - Use method of polyurethane sealing material - Google Patents
Use method of polyurethane sealing material Download PDFInfo
- Publication number
- CN117209715B CN117209715B CN202311312100.3A CN202311312100A CN117209715B CN 117209715 B CN117209715 B CN 117209715B CN 202311312100 A CN202311312100 A CN 202311312100A CN 117209715 B CN117209715 B CN 117209715B
- Authority
- CN
- China
- Prior art keywords
- sealing material
- polyurethane sealing
- parts
- polyurethane
- foaming
- 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.)
- Active
Links
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 121
- 239000004814 polyurethane Substances 0.000 title claims abstract description 121
- 239000003566 sealing material Substances 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 35
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000005187 foaming Methods 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 50
- YYROPELSRYBVMQ-UHFFFAOYSA-N 4-toluenesulfonyl chloride Chemical compound CC1=CC=C(S(Cl)(=O)=O)C=C1 YYROPELSRYBVMQ-UHFFFAOYSA-N 0.000 claims abstract description 36
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 31
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims abstract description 30
- -1 polyoxypropylene Polymers 0.000 claims abstract description 29
- 239000002994 raw material Substances 0.000 claims abstract description 24
- 239000004156 Azodicarbonamide Substances 0.000 claims abstract description 19
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims abstract description 19
- 235000019399 azodicarbonamide Nutrition 0.000 claims abstract description 19
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 19
- 229920002545 silicone oil Polymers 0.000 claims abstract description 19
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 18
- 239000012975 dibutyltin dilaurate Substances 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 35
- 239000004677 Nylon Substances 0.000 claims description 30
- 229920001778 nylon Polymers 0.000 claims description 30
- 239000011159 matrix material Substances 0.000 claims description 27
- 239000000839 emulsion Substances 0.000 claims description 23
- 229920005862 polyol Polymers 0.000 claims description 21
- 150000003077 polyols Chemical class 0.000 claims description 21
- 239000000155 melt Substances 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 17
- 239000002131 composite material Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001723 curing Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 8
- 239000000654 additive Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 39
- 238000006243 chemical reaction Methods 0.000 description 37
- 239000006260 foam Substances 0.000 description 32
- 210000004027 cell Anatomy 0.000 description 26
- 230000000052 comparative effect Effects 0.000 description 24
- 238000009413 insulation Methods 0.000 description 23
- 239000003292 glue Substances 0.000 description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- 230000003712 anti-aging effect Effects 0.000 description 7
- 239000012752 auxiliary agent Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000004094 surface-active agent Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000001788 irregular Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000004588 polyurethane sealant Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000004970 Chain extender Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003963 antioxidant agent Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000000497 foam cell Anatomy 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000036632 reaction speed Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229910021485 fumed silica Inorganic materials 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003384 small molecules Chemical group 0.000 description 2
- PYOKUURKVVELLB-UHFFFAOYSA-N trimethyl orthoformate Chemical compound COC(OC)OC PYOKUURKVVELLB-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical group NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 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 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention is suitable for the application field of inorganic high polymer materials, and provides a polyurethane sealing material which comprises the following raw material components: 4.0 to 6.0 parts of trihydroxy polyoxypropylene ether, 7.0 to 10.0 parts of dimethyl silicone oil, 0.01 to 0.02 part of dibutyl tin dilaurate, 0.005 to 0.015 part of azodicarbonamide, 0.1 to 0.3 part of 1, 4-butanediol, 6.5 to 15.5 parts of toluene diisocyanate and 0.2 to 0.3 part of p-toluenesulfonyl chloride, wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is 1: (1-1.5). The invention also provides a using method of the polyurethane sealing material. Therefore, the invention overcomes the defects that a plurality of additives, foaming amount and cell size are not easy to control in the prior polyurethane foaming process, and the problems of difficult dispersion, weak mechanical property after molding and the like caused by high-viscosity compounding of the polyurethane sealing material and the base material.
Description
Technical Field
The invention relates to the technical field of inorganic high polymer materials, in particular to a use method of a polyurethane sealing material.
Background
The polyurethane sealing material is a high molecular polymer prepared from polyisocyanate and polyol polymer, has excellent elasticity and mechanical properties, and is widely applied to building heat insulation materials. The polyurethane sealing material generally comprises a hard segment composed of carbamate, urea bond and the like and a soft segment composed of polymer polyol, wherein the ratio of-NCO to-OH in the hard segment and the soft segment influences the adhesive property of the sealant, plays an important role in mechanical, thermal, acid-base and friction resistance, and in addition, in order to improve the performance of the polyurethane sealing material, additives such as a cross-linking agent, an antioxidant, a surfactant and the like are generally added.
The patent with the publication number of CN 113214773B discloses a high-temperature-resistant heat-insulating polyurethane sealant and a preparation method thereof, wherein the high-temperature-resistant heat-insulating polyurethane sealant comprises the following raw materials: modified diphenylmethane diisocyanate, phthalic anhydride polyester polyol, polyether triol, small molecule chain extender, light calcium carbonate, silane coupling agent and catalyst.
Paper article: and (3) preparation and application research of the low-modulus double-component polyurethane sealant. The Chinese building is waterproof. The polyurethane sealant in the technology comprises polypropylene oxide dihydric alcohol, polypropylene oxide triol, dioctyl phthalate, nano calcium carbonate, fumed silica, diphenylmethane-4, 4' -diisocyanate, dibutyl tin dilaurate, gamma-glycidyl ether oxypropyl trimethoxy silane, trimethyl orthoformate, an antioxidant, an ultraviolet absorbent and the like.
In the patent with the publication number of CN 113214773B, auxiliary agents such as a small molecule chain extender, light calcium carbonate, a silane coupling agent, a catalyst and the like are added; the paper is added with assistants such as nano calcium carbonate, fumed silica, antioxidants, ultraviolet absorbers and the like. Although the addition of the auxiliary agent can improve the performance of the polyurethane sealing material to a certain extent, the more the raw material components are, the more difficult the control of various parameters is in the processing process, the more difficult the stable the reaction is, the more difficult the technology of quantitatively controlling the foaming rate, the foaming amount, the foam mechanical strength and the like of the polyurethane foam material is, and the performance of the finally prepared polyurethane sealing material is greatly reduced; in addition, the more auxiliary agent is added, the higher the raw material cost of the manufacturer.
The PA hot-melt material is a black high-strength plastic material, raw materials are easy to obtain and are concise to process, but the single PA hot-melt material has common barrier sealing performance, so that the application performance of the polymer material is improved, the market application requirements are enriched, the barrier sealing performance of the material is widened, and the PA hot-melt material and the polyurethane sealing material are generally combined for application to form the composite material with the high barrier sealing performance.
Paper article: a process and apparatus for the production of polyurethane sealing strips (cast-in-place foam gaskets) are described. PPTS2005 plastic processing technology peak forum discussion, chinese engineering plastics industry association. The paper discloses that: there are currently two main forms and sections of open-type polyurethane sealing tape (polyurethane sealing tape is called polyurethane open-type sealing tape because polyurethane reaction material is not foamed in a mold but is foamed and molded freely in an open state in a plane or a groove).
The patent with publication number CN 102235137A discloses a heat-insulating metal section with foaming attachment strips in a cavity and a manufacturing method thereof, and the process steps are as follows: plugging two ends of the U-shaped groove or the V-shaped groove, injecting foaming glue into the U-shaped groove or the V-shaped groove, placing the U-shaped groove or the V-shaped groove filled with the foaming glue into a heat insulation cavity of the profile, and heating and curing. The glue injection mode is "free foaming forming in open state in groove" in the above paper. However, after the glue is injected in the mode, the technical problems of whether the foaming glue is completely attached to the base material, whether the foaming is complete, whether the foaming glue is filled in the whole groove and the like are not controlled, so that the heat insulation sealing performance of the foaming glue is relatively poor.
The patent with the publication number of CN 107023246B discloses a hollow glass heat insulation strip and a manufacturing method, wherein after polyurethane A glue and polyurethane B glue are mixed in a glue injection head, the mixed polyurethane is discharged from a glue injection nozzle and flows onto a C-shaped groove of a metal strip, the metal strip holds the mixed polyurethane to move continuously, the polyurethane A glue and the polyurethane B glue react, foam and solidify to form a foam strip, the polyurethane fills the C-shaped groove of the metal strip, and the metal strip is bonded into a whole. The glue injection mode is the free foaming molding under the plane open state in the paper. The glue injection mode can clearly see the bonding degree of the foaming material and the base material, whether the foaming material fills the base material or not, and the like, so the glue injection mode is generally selected, but the patent only roughly describes the glue injection mode, and does not describe the technical means adopted to control the foam density, the mechanical property of the foaming material, and the like, so the quantitative control of the foaming rate, the foaming quantity, the foam mechanical strength, the technological parameters, the reaction stability, and the like of the polyurethane foam material cannot be realized.
Disclosure of Invention
In view of the above, the invention provides a use method of a polyurethane sealing material, which overcomes the defects that a plurality of additives, foaming amount and cell size are not easy to control when a plurality of additives are used in the existing polyurethane foaming process, and the problems of difficult dispersion, weak mechanical property after molding and the like caused by high-viscosity compounding of the polyurethane sealing material and a substrate; the polyurethane sealing material prepared by the invention has excellent heat insulation sealing performance and wide application range.
The technical scheme of the invention is realized as follows:
on the one hand, the invention provides a polyurethane sealing material, which comprises the following raw material components in parts by weight:
and (3) material A: 4.0 to 6.0 parts of trihydroxy polyoxypropylene ether, 7.0 to 10.0 parts of dimethyl silicone oil, 0.01 to 0.02 parts of dibutyl tin dilaurate, 0.005 to 0.015 parts of azodicarbonamide and 0.1 to 0.3 part of 1, 4-butanediol.
And (2) material B: toluene diisocyanate 6.5-15.5 weight portions and p-toluene sulfonyl chloride 0.2-0.3 weight portions.
The trihydroxy polyoxypropylene ether provides-OH as an-OH (hydroxyl) -containing polyol.
Dimethyl silicone oil is used as a key solvent for adjusting the pore size of the foam; the foam pore diameter becomes smaller when the adding amount of the dimethyl silicone oil is large; the foam pore size is increased if the adding amount of the dimethyl silicone oil is small; therefore, it is necessary to reasonably control the addition amount of the simethicone.
Dibutyl tin dilaurate as a catalyst mainly controls the reaction rate.
Azodicarbonamide is used as a foaming agent, and carbon dioxide gas is generated after heating to form bubbles.
1, 4-butanediol was used as chain extender.
Toluene diisocyanate contains-NCO (isocyanate), mainly provides-NCO, and reacts with-OH in polyalcohol; in the present invention, the molar ratio of-OH to-NCO is 1:1 to 1.5; preferably, the molar ratio of-OH to-NCO is 1:1.1. if the molar ratio of-OH to-NCO is less than 1:1, the prepared polyurethane sealing material has small cell structure and poor sealing and heat insulation effects; if the molar ratio of-OH to-NCO is greater than 1:1.5, the prepared polyurethane sealing material has large cell structure, irregular cell structure and poor mechanical property.
The p-toluenesulfonyl chloride is mainly used for controlling the bubble quantity produced by the reaction, so that excessive bubbles formed after azodicarbonamide generates carbon dioxide gas are avoided, and the mechanical properties of the polyurethane sealing material are influenced. Therefore, it is necessary to reasonably control the addition amounts of azodicarbonamide and p-toluenesulfonyl chloride.
In the invention, the formula of the polyurethane sealing material and the weight ratio of the raw materials in the formula are controlled, so that the melt flow rate of the mixed system is controlled. When the melt flow rate is too high, the structure of the foam holes is enlarged (the foam density and the porosity are large), the shape of the foam holes is irregular, the size of the foam holes is inconsistent, and the elasticity of the polyurethane sealing material is enlarged, so that the mechanical property is poor; when the melt flow rate is too small, the cell structure becomes small (the foam density and the porosity are small), and the mechanical property becomes good, but the sealing and heat insulation effects of the polyurethane sealing material are poor due to poor foaming effects, so that the bonding degree between gaps of the polyurethane sealing material and the nylon matrix material is poor, and the sealing and heat insulation effects are further reduced.
On the other hand, the invention also provides a using method of the polyurethane sealing material, which comprises the following steps:
s1, preparing a polyol emulsion:
placing a certain amount of trihydroxy polyoxypropylene ether, 1, 4-butanediol, dimethyl silicone oil, dibutyl tin dilaurate and azodicarbonamide into a reaction kettle at 20-30 ℃ for stirring and mixing to prepare polyol emulsion with uniformly mixed functional characteristics for later use;
s2, preparing an emulsion mixing system:
continuously adding toluene diisocyanate and p-toluenesulfonyl chloride into the polyol emulsion, uniformly stirring to obtain a mixed system, and controlling the temperature within 20-30 ℃ for standby;
s3, preparing a high-barrier sealing composite material:
and (3) adding the mixed system into a prepared nylon matrix material groove, quickly heating to 58-62 ℃ for heating and foaming for 3-5min, continuously heating and curing for 60min at 58-62 ℃, and cooling to room temperature (20-30 ℃) to obtain the integrated high-barrier sealing composite material of the polyurethane sealing material and the nylon matrix material.
Specifically, under the conditions of 190 ℃ and 5kg load, the melt flow rate of the mixed system is 25-35g/10min; the melt flow rate of the mixed system is 55-65g/10min under the conditions of 190 ℃ and 10kg load.
Specifically, in the two steps S1 and S2, the stirring speed is 30-40r/min.
Specifically, in the step S3, the rapid temperature rise to 58-62 ℃ means that: the temperature of the mixed system is controlled to be 20-30 ℃ in the step S2, and the temperature is increased from 20-30 ℃ to 58-62 ℃ within 2-5 min.
In the three steps, the raw materials are mainly mixed uniformly in the two steps S1 and S2.
The mixed materials start to react after the temperature is higher than 30 ℃, in the S3 step, the polyol emulsion in the mixed system and toluene diisocyanate quickly react and generate a large amount of carbon dioxide gas to form foam, the foam volume is rapidly increased along with the temperature rise, after the temperature reaches 58-62 ℃, the interior and the surface of the foam generated by the reaction system also generate a large amount of heat, the two parts of heat accelerate the whole reaction to progress, gel is generated, then the gel is gradually solidified, part of excessive mixed reaction system solution generates self-polymerization reaction, after all the reaction is finished, the foam is solidified and irreversibly deformed, the nylon substrate material groove is filled, and the polyurethane sealing material and the nylon substrate material are continuously heated at 58-62 ℃ until the polyurethane sealing material and the nylon substrate material are cured and thoroughly compounded.
In the invention, in the two steps S1 and S2, the reaction temperature is controlled to be 20-30 ℃ (room temperature), partial reaction of materials in the early mixing process is avoided, if partial reaction occurs in the two steps S1 and S2, and partial reaction occurs again in the step S3, the whole chemical synthesis process of the polyurethane sealing material is uncontrolled in relevant reaction parameters, cell structure, cell mechanical property and the like, and finally the polyurethane sealing material is unstable in performance and reduced in heat insulation sealing performance in the production and processing process. The invention controls the temperature in the two steps S1 and S2 at 20-30 ℃ to keep the mixing process of materials in the two steps S1 and S2 stable, thereby controlling the chemical reaction in the step S3, leading the chemical synthesis of the polyurethane sealing material to be a one-time reaction, being capable of controlling all parameters of the reaction completely, leading the shape of the foam cells to be regular, the size of the foam cells to be consistent and the mechanical property of the foam cells to be excellent.
In the step S3, the temperature of the nylon matrix material and the mixed system is raised to 58-62 ℃, and the melting point of the nylon matrix material is about 200 ℃, so that the nylon matrix material and the mixed system can be raised to 58-62 ℃ together, and the nylon matrix material and the polyurethane sealing material can be better kneaded to form an integral structure by a treatment mode of raising the temperature together, so that the sealing property and the heat insulation property of the nylon matrix material and the polyurethane sealing material are improved.
In the S3 step, the nylon matrix material and the mixed system are heated to 58-62 ℃, when the nylon matrix material and the mixed system are at 58-62 ℃, chemical reaction can be stably carried out, and when the temperature is higher than 62 ℃, on one hand, the reaction speed is increased, but the reaction speed is increased, the cell structure, mechanical property and the like of the polyurethane sealing material are not well controlled, the reaction is unstable, and the performance of the polyurethane sealing material is also unstable; on the other hand, the energy is wasted and the production cost is increased.
In the step S3, the heating foaming time is 3-5min, if the foaming time is more than 5min, the foaming time is too slow, the foaming time is too long, bubbles can collapse, the bubble structure is invalid, and the heat insulation sealing performance of the polyurethane sealing material is affected; if the foaming time is less than 3min, the foaming is too fast, which may cause too large bubbles to affect the mechanical properties of the polyurethane sealing material, and at the same time, too large bubbles may collapse to affect the heat insulation sealing properties of the polyurethane sealing material.
According to the invention, the melt flow rate is controlled by controlling the weight ratio of the raw materials in the formula, so that the cell structure of the polyurethane sealing material is controlled; the polyurethane sealing material has the advantages that the material mixing temperature, the material heating temperature and the heating foaming time are continuously controlled, the reaction is controlled to be carried out stably at one time, the foaming rate, the foaming quantity and the foam mechanical strength of the polyurethane sealing material are quantitatively controlled, and the polyurethane sealing material has optimal sealing and heat insulation properties and mechanical properties, so that the polyurethane sealing material has simpler raw material composition, fewer raw materials and no addition agent such as surfactant, accelerator, anti-aging agent and the like is required to be added in the formula of the polyurethane sealing material. (in the prior art, since the foaming rate, the foaming amount and the foam mechanical strength of the polyurethane sealing material cannot be controlled quantitatively, the performance of the polyurethane sealing material is general, and therefore, the performance of the polyurethane sealing material needs to be improved by adding an auxiliary agent).
Firstly, according to a common production and processing enterprise with the daily output of 100 tons, if the auxiliary agent is added, the daily addition amount of the surfactant is about 1 ton, and the addition amount of the accelerator, the anti-aging agent and the like is about 0.2 to 0.5 ton; the daily cost of the surfactant is about 2 ten thousand yuan/ton according to the market price, the daily cost of the accelerator, the anti-aging agent and the like is about 2 ten thousand yuan/ton, the daily cost of the accelerator, the anti-aging agent and the like is about 0.14-0.35 ten thousand yuan/day, and the daily cost of the total auxiliary agent is about 2.14-2.35 ten thousand yuan/day; the annual cost of the adjuvant is about 781.1-857.75 ten thousand yuan/year. Namely, the formulation of the polyurethane sealing material does not need to add auxiliary agents such as a surfactant, an accelerator, an anti-aging agent and the like, and the cost can be saved by about 781.1-857.75 ten thousand yuan each year.
In addition, if the additives such as surfactants, accelerators and anti-aging agents are used, the additives are all chemicals, so that the additives inevitably produce surplus materials and waste materials, and pollute the environment.
Because of the differences of application performance and requirements of different fields on the polyurethane sealing material, the formula composition, the weight ratio of raw materials in the formula, the material mixing temperature, the material heating temperature, the heating foaming time and other relevant conditions and parameter control, the foam structure and the foam mechanical strength of the prepared polyurethane sealing material are suitable for door and window sealing and heat insulation, including building door and window sealing and heat insulation or vehicle door and window sealing and heat insulation and the like.
Compared with the prior art, the polyurethane sealing material and the using method thereof have the following beneficial effects:
1. the polyurethane sealing material has a simple formula, does not add assistants such as a surfactant, an accelerator, an anti-aging agent and the like, saves the cost of raw materials, reduces dangerous waste and avoids environmental pollution. The polyurethane sealing material has reasonable raw material proportion, controls the melt flow rate, further controls the cell structure of the polyurethane sealing material, and has good sealing and heat insulation properties and mechanical properties.
2. In the using method of the polyurethane sealing material, the reaction is controlled to be carried out stably at one time by controlling the material mixing temperature, the material heating temperature and the heating foaming time, and the foaming rate, the foaming quantity and the foam mechanical strength of the polyurethane sealing material are controlled quantitatively, so that the polyurethane sealing material has optimal sealing and heat insulation properties and mechanical properties.
Detailed Description
The following description of the embodiments of the present invention will clearly and fully describe the technical aspects of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
Example 1
The polyurethane sealing material comprises the following raw material components in parts by weight:
and (3) material A: 4.0 parts of trihydroxy polyoxypropylene ether, 7.0 parts of dimethyl silicone oil, 0.01 part of dibutyl tin dilaurate, 0.005 part of azodicarbonamide and 0.1 part of 1, 4-butanediol.
And (2) material B: toluene diisocyanate 6.73 parts and p-toluenesulfonyl chloride 0.2 parts.
Wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is 1:1.
the using method of the polyurethane sealing material comprises the following steps:
s1, preparing a polyol emulsion:
putting a certain amount of trihydroxy polyoxypropylene ether, 1, 4-butanediol, dimethyl silicone oil, dibutyl tin dilaurate and azodicarbonamide into a reaction kettle at 20 ℃, stirring and mixing at 30r/min to prepare polyol emulsion with uniformly mixed functional characteristics for later use;
s2, preparing an emulsion mixing system:
continuously adding toluene diisocyanate and p-toluenesulfonyl chloride into the polyol emulsion, uniformly stirring under the condition of 30r/min to obtain a mixed system, and controlling the temperature within 20 ℃ for later use;
s3, preparing a high-barrier sealing composite material:
adding the mixed system into a prepared nylon matrix material groove according to a certain proportion, heating to 58 ℃ within 2min for heating and foaming for 3min, continuously heating and curing at 58 ℃ for 60min, and cooling to 20 ℃ to obtain an integrated high-barrier sealing composite material of the polyurethane sealing material and the nylon matrix material;
the melt flow rate of the mixed system was 25g/10min at 190℃under a load of 5 kg.
Example 2
The polyurethane sealing material comprises the following raw material components in parts by weight:
and (3) material A: 5 parts of trihydroxy polyoxypropylene ether, 8 parts of dimethyl silicone oil, 0.015 part of dibutyl tin dilaurate, 0.01 part of azodicarbonamide and 0.2 part of 1, 4-butanediol.
And (2) material B: 9.24 parts of toluene diisocyanate and 0.25 part of p-toluenesulfonyl chloride.
Wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is 1:1.1.
the using method of the polyurethane sealing material comprises the following steps:
s1, preparing a polyol emulsion:
putting a certain amount of trihydroxy polyoxypropylene ether, 1, 4-butanediol, dimethyl silicone oil, dibutyl tin dilaurate and azodicarbonamide into a reaction kettle at 25 ℃, stirring and mixing under the condition of 35r/min to prepare polyol emulsion with uniformly mixed functional characteristics for later use;
s2, preparing an emulsion mixing system:
continuously adding toluene diisocyanate and p-toluenesulfonyl chloride into the polyol emulsion, uniformly stirring under the condition of 35r/min to obtain a mixed system, and controlling the temperature within 25 ℃ for later use;
s3, preparing a high-barrier sealing composite material:
adding the mixed system into a prepared nylon matrix material groove according to a certain proportion, heating to 60 ℃ within 3min for heating and foaming for 4min, continuously heating and curing at 60 ℃ for 60min, and cooling to 25 ℃ to obtain an integrated high-barrier sealing composite material of the polyurethane sealing material and the nylon matrix material;
the melt flow rate of the mixed system was 60g/10min at 190℃under a load of 10 kg.
Example 3
The polyurethane sealing material comprises the following raw material components in parts by weight:
and (3) material A: 5.5 parts of trihydroxy polyoxypropylene ether, 9 parts of dimethyl silicone oil, 0.018 part of dibutyl tin dilaurate, 0.012 part of azodicarbonamide and 0.25 part of 1, 4-butanediol.
And (2) material B: 12.02 parts of toluene diisocyanate and 0.26 part of p-toluenesulfonyl chloride.
Wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is 1:1.3.
the using method of the polyurethane sealing material comprises the following steps:
s1, preparing a polyol emulsion:
putting a certain amount of trihydroxy polyoxypropylene ether, 1, 4-butanediol, dimethyl silicone oil, dibutyl tin dilaurate and azodicarbonamide into a reaction kettle at 26 ℃, stirring and mixing at 33r/min to prepare polyol emulsion with uniformly mixed functional characteristics for later use;
s2, preparing an emulsion mixing system:
continuously adding toluene diisocyanate and p-toluenesulfonyl chloride into the polyol emulsion, uniformly stirring under the condition of 33r/min to obtain a mixed system, and controlling the temperature within 27 ℃ for later use;
s3, preparing a high-barrier sealing composite material:
adding the mixed system into a prepared nylon matrix material groove according to a certain proportion, heating to 61 ℃ within 4min for heating and foaming for 4min, continuously heating and curing for 60min at 61 ℃, and cooling to 28 ℃ to obtain an integrated high-barrier sealing composite material of the polyurethane sealing material and the nylon matrix material;
the melt flow rate of the mixed system was 30g/10min at 190℃under a load of 5 kg.
Example 4
The polyurethane sealing material comprises the following raw material components in parts by weight:
and (3) material A: 6.0 parts of trihydroxy polyoxypropylene ether, 10.0 parts of dimethyl silicone oil, 0.02 part of dibutyl tin dilaurate, 0.015 part of azodicarbonamide and 0.3 part of 1, 4-butanediol.
And (2) material B: 15.13 parts of toluene diisocyanate and 0.3 part of p-toluenesulfonyl chloride.
Wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is 1:1.5.
the using method of the polyurethane sealing material comprises the following steps:
s1, preparing a polyol emulsion:
putting a certain amount of trihydroxy polyoxypropylene ether, 1, 4-butanediol, dimethyl silicone oil, dibutyl tin dilaurate and azodicarbonamide into a reaction kettle at 30 ℃, stirring and mixing at 40r/min to prepare polyol emulsion with uniformly mixed functional characteristics for later use;
s2, preparing an emulsion mixing system:
continuously adding toluene diisocyanate and p-toluenesulfonyl chloride into the polyol emulsion, uniformly stirring under the condition of 40r/min to obtain a mixed system, and controlling the temperature within 30 ℃ for later use;
s3, preparing a high-barrier sealing composite material:
adding the mixed system into a prepared nylon matrix material groove according to a certain proportion, heating to 62 ℃ within 5min for heating and foaming for 5min, continuously heating and curing for 60min at 62 ℃, and cooling to 30 ℃ to obtain an integrated high-barrier sealing composite material of the polyurethane sealing material and the nylon matrix material;
the melt flow rate of the mixed system was 35g/10min at 190℃under a load of 5 kg.
Comparative example 1
Based on the embodiment 1, the proportions of the raw materials in the polyurethane sealing material are replaced, specifically:
and (3) material A: 2 parts of trihydroxy polyoxypropylene ether, 12 parts of dimethyl silicone oil, 0.05 part of dibutyl tin dilaurate, 0.02 part of azodicarbonamide and 0.05 part of 1, 4-butanediol.
And (2) material B: 10 parts of toluene diisocyanate and 0.1 part of p-toluenesulfonyl chloride.
Wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is changed along with the change of the ratio of the trihydroxy polyoxypropylene ether to the toluene diisocyanate.
Other conditions were consistent.
Comparative example 2
Based on the embodiment 1, the proportions of the raw materials in the polyurethane sealing material are replaced, specifically:
and (3) material A: 7 parts of trihydroxy polyoxypropylene ether, 6 parts of dimethyl silicone oil, 0.05 part of dibutyl tin dilaurate, 0.001 part of azodicarbonamide and 0.4 part of 1, 4-butanediol.
And (2) material B: 3 parts of toluene diisocyanate and 0.4 part of p-toluenesulfonyl chloride.
Wherein the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in the toluene diisocyanate is changed along with the change of the ratio of the trihydroxy polyoxypropylene ether to the toluene diisocyanate.
Other conditions were consistent.
Comparative example 3
Based on example 2, 5 parts of trihydroxy polyoxypropylene ether and 5.88 parts of toluene diisocyanate were adjusted so that the molar ratio of-OH to-NCO was 1:0.7; other conditions were consistent.
Comparative example 4
Based on example 2, 5 parts of trihydroxy polyoxypropylene ether and 15.1 parts of toluene diisocyanate were adjusted so that the molar ratio of-OH to-NCO was 1:1.8; other conditions were consistent.
Comparative example 5
Based on the example 3, in the two steps of S1 and S2, the reaction temperature is controlled to be 33 ℃; other conditions were consistent.
Comparative example 6
Based on the embodiment 3, in the two steps of S1 and S2, the reaction temperature is controlled to be 38 ℃; other conditions were consistent.
Comparative example 7
Based on the embodiment 3, in the two steps of S1 and S2, the reaction temperature is controlled to be 35 ℃; other conditions were consistent.
Comparative example 8
Based on the embodiment 3, in the two steps of S1 and S2, the reaction temperature is controlled to be 15 ℃; other conditions were consistent.
Comparative example 9
On the basis of the example 4, the nylon matrix material and the mixed system are heated to 72 ℃; other conditions were consistent.
Comparative example 10
On the basis of the example 4, the nylon matrix material and the mixed system are heated to 68 ℃; other conditions were consistent.
Comparative example 11
On the basis of the example 4, the nylon matrix material and the mixed system are heated to 83 ℃; other conditions were consistent.
Comparative example 12
On the basis of the example 4, the nylon matrix material and the mixed system are heated to 55 ℃; other conditions were consistent.
Comparative example 13
In the step S3, the time of heating and foaming is adjusted to be 1min based on the embodiment 2; other conditions were consistent.
Comparative example 14
In the step S3, the time of heating and foaming is adjusted to 8min based on the embodiment 2; other conditions were consistent.
For the composite materials produced in examples 1 to 4 and comparative examples 1 to 14 described above, cell shape regularity and cell size uniformity of the polyurethane sealing material in the composite materials were observed, and indexes such as cell density, porosity, closed porosity, water absorption, melt flow rate, compressive strength, and thermal conductivity of the polyurethane sealing material were determined (see tables 1 and 2).
The method for calculating the porosity comprises the following steps: the volume of the internal pores of the polyurethane sealing material is a percentage of the total volume of the polyurethane sealing material. The cell density is calculated by the following steps: weight of polyurethane sealing material/(total volume of polyurethane sealing material x porosity).
The closed cell rate is measured according to the measuring method in national standard GB/T10799-1989; the water absorption is measured according to the measuring method in national standard QB/T2411-1998; compressive strength was measured according to the measurement method in national standard GB/T8813-1988; the thermal conductivity was measured according to the measurement method in national standard GB/T10294-1988.
The data analysis of the examples 1-4 shows that the polyurethane sealing material and the using method thereof have regular cell shapes and consistent cell sizes; the density and the porosity of the foam holes are moderate, the closing rate is more than or equal to 98 percent, the water absorption rate is less than or equal to 1 percent, the compressive strength is better, and the heat conductivity coefficient is low. Meanwhile, the polyurethane sealing materials obtained in the four embodiments are stable in performance index, small in up-down floating difference and high in overall quality of the polyurethane sealing materials produced in batches. In addition, as is apparent from the four examples, the polyurethane sealing material produced in example 2 has the greatest compressive strength and the best coefficient of thermal conductivity, which means that the polyurethane sealing material has the most excellent mechanical properties and heat insulation sealing properties, and therefore, the ratio composition of the respective raw materials in example 2 is the best, and the parameters of controlling the temperature in the steps S1 and S2 to 25 ℃ and heating and foaming at 60 ℃ and heating and foaming time to 4min in the step S3 are the best.
As can be seen from the comparison of comparative examples 1, 2 and 1, even though the formulation ingredients of the present invention are used, the raw material ratios not according to the present invention cause the melt flow rate to change, thereby causing irregular cell shape and inconsistent cell size; in comparative example 1, under the conditions of 190 ℃ and 5kg load, the melt flow rate of the mixed system is 15g/10min, the melt flow rate is too small, the foam density and the porosity are small, the mechanical property is good, but the foaming effect is poor, the heat conductivity coefficient is large, and the sealing and heat insulation effects of the polyurethane sealing material are poor; in comparative example 2, the melt flow rate of the mixed system was 45g/10min at 190℃under a load of 5kg, and the melt flow rate was large, resulting in a large foam density and porosity, and poor mechanical properties.
As can be seen from comparison of comparative examples 3, 4 and 2, when the molar ratio of-OH to-NCO is small, the cell density and the porosity of the polyurethane sealing material become small, and the compression resistance can be improved, but the heat conductivity is large and the heat insulating sealing performance is lowered. When the molar ratio of-OH to-NCO is large, the cell density and the porosity of the polyurethane sealing material become large, and the heat conduction coefficient is small, the heat insulation sealing performance is good, but the compression resistance is reduced.
As can be seen from the comparison of comparative examples 5, 6 and 7 with example 3, in the two steps S1 and S2, when the reaction temperature is controlled to be higher than 30 ℃, the materials are partially reacted in the two steps S1 and S2, and the partial reaction is continuously carried out in the step S3, so that the whole chemical synthesis process of the polyurethane sealing material is not well controlled, the shape of the foam holes of the polyurethane sealing material is irregular, the size of the foam holes is inconsistent, the performance indexes such as the foam hole density, the porosity, the compressive strength, the heat conductivity coefficient and the like are unstable, and if the polyurethane sealing material is produced in batches, the material performance is unstable, the difference among batches is large, and the overall quality of the polyurethane sealing material is reduced. As can be seen from comparison of comparative example 8 with example 3, in the two steps S1 and S2, the reaction temperature is controlled to be lower than 20 ℃, the materials cannot react in the two steps S1 and S2, the performance of the polyurethane sealing material is not affected, but energy is wasted due to the fact that the control temperature is controlled to be lower than 20 ℃ in the whole reaction process.
As can be seen from the comparison of comparative examples 9, 10, 11 and 4, the temperature of the nylon matrix material and the mixed system is higher than 62 ℃, the reaction speed is increased, but the reaction is unstable, the shape of the foam holes of the polyurethane sealing material is irregular, the sizes of the foam holes are inconsistent, the performance indexes such as the foam hole density, the porosity, the compressive strength, the heat conductivity coefficient and the like are unstable, and the materials are unstable, the difference among batches is large, and the overall quality of the polyurethane sealing material is reduced if the polyurethane sealing material is produced in batches. As can be seen from comparison of comparative example 12 and example 4, the temperature of the nylon matrix material and the mixed system together is lower than 58 ℃, and the polyurethane sealing material cannot stably perform chemical reaction due to the lower temperature, and the reaction is incomplete, so that the cell density and the porosity are smaller, and the heat conductivity coefficient is higher and the heat insulation sealing performance is poor although the compression strength is slightly better.
As can be seen from comparison of comparative examples 13 and 14 with example 2, in the step S3, if the foaming time is less than 3min, the foaming is too fast, so that the cell density and the porosity are too high, the compressive strength is reduced, and meanwhile, the collapse is caused by too large bubbles, so that the closed cell rate is reduced, and the heat insulation sealing performance of the polyurethane sealing material is affected; the heating foaming time is longer than 5min, so that the foaming is too slow, the foaming time is too long, bubbles collapse, the cell density and the porosity are too small, the closed cell rate is reduced, the heat conductivity coefficient is increased, and the heat insulation sealing performance of the polyurethane sealing material is affected.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. A using method of a polyurethane sealing material is characterized in that:
the polyurethane sealing material comprises the following raw material components in parts by weight:
and (3) material A: 4.0 to 6.0 parts of trihydroxy polyoxypropylene ether, 7.0 to 10.0 parts of dimethyl silicone oil, 0.01 to 0.02 parts of dibutyl tin dilaurate, 0.005 to 0.015 parts of azodicarbonamide and 0.1 to 0.3 part of 1, 4-butanediol;
and (2) material B: toluene diisocyanate 6.5-15.5 weight portions and p-toluene sulfonyl chloride 0.2-0.3 weight portions;
the molar ratio of-OH in the trihydroxy polyoxypropylene ether to-NCO in toluene diisocyanate is 1: (1-1.5);
the using method of the polyurethane sealing material comprises the following steps:
s1, stirring and mixing trihydroxy polyoxypropylene ether, 1, 4-butanediol, dimethyl silicone oil, dibutyl tin dilaurate and azodicarbonamide at 20-30 ℃ to prepare polyol emulsion;
s2, continuously adding toluene diisocyanate and p-toluenesulfonyl chloride into the polyol emulsion, uniformly mixing to obtain a mixed system, and controlling the temperature within 20-30 ℃ for standby;
s3, adding the mixed system into a nylon matrix material groove, quickly heating to 58-62 ℃ for heating and foaming for 3-5min, continuously heating and curing, and cooling to obtain the composite material of the polyurethane sealing material and the nylon matrix material.
2. The method of using the polyurethane sealing material according to claim 1, wherein: the molar ratio of the-OH to the-NCO is 1:1.1.
3. the method of using the polyurethane sealing material according to claim 1, wherein: the composite material comprises the following raw material components in parts by weight:
and (3) material A: 5 parts of trihydroxy polyoxypropylene ether, 8 parts of dimethyl silicone oil, 0.015 part of dibutyl tin dilaurate, 0.01 part of azodicarbonamide and 0.2 part of 1, 4-butanediol;
and (2) material B: 9.24 parts of toluene diisocyanate and 0.25 part of p-toluenesulfonyl chloride.
4. The method of using the polyurethane sealing material according to claim 1, wherein: the melt flow rate of the mixed system is 25-35g/10min under the conditions of 190 ℃ and 5kg load.
5. The method of using the polyurethane sealing material according to claim 1, wherein: the melt flow rate of the mixed system is 55-65g/10min under the conditions of 190 ℃ and 10kg load.
6. The method of using the polyurethane sealing material according to claim 1, wherein: in the step S3, the rapid temperature rise to 58-62 ℃ means that: the temperature of the mixed system is controlled to be 20-30 ℃ in the step S2, and the temperature is increased from 20-30 ℃ to 58-62 ℃ and controlled to be within 2-5 min.
7. The method of using the polyurethane sealing material according to claim 1, wherein: the control temperature in both steps S1 and S2 was 25 ℃.
8. The method of using the polyurethane sealing material according to claim 1, wherein: in the step S3, the heating foaming time is 4min.
9. The method of using the polyurethane sealing material according to claim 1, wherein: and S3, adding the mixed system into a nylon matrix material groove, and rapidly heating to 60 ℃ for heating and foaming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311312100.3A CN117209715B (en) | 2023-10-11 | 2023-10-11 | Use method of polyurethane sealing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311312100.3A CN117209715B (en) | 2023-10-11 | 2023-10-11 | Use method of polyurethane sealing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117209715A CN117209715A (en) | 2023-12-12 |
| CN117209715B true CN117209715B (en) | 2024-02-27 |
Family
ID=89035343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311312100.3A Active CN117209715B (en) | 2023-10-11 | 2023-10-11 | Use method of polyurethane sealing material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117209715B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1173001A (en) * | 1956-04-10 | 1959-02-18 | Us Rubber Co | Manufacture of polyurethane foam sheets |
| SU840053A1 (en) * | 1979-06-25 | 1981-06-23 | Белорусский Технологический Институтим. C.M. Кирова | Composition for producing stiff porous polyurethan |
| EP0625559A1 (en) * | 1993-05-21 | 1994-11-23 | Bridgestone Corporation | Foamable materials, their preparation and use |
| WO2002050150A1 (en) * | 2000-12-20 | 2002-06-27 | Bayer Aktiengesellschaft | Polyurethane elastomers with an improved hydrolytic stability |
| JP2002226829A (en) * | 2001-02-06 | 2002-08-14 | Nhk Spring Co Ltd | Polyurethane foam sealing material having high water- impervious performance |
| KR20040082548A (en) * | 2003-03-19 | 2004-09-30 | 한국가스공사 | Hard polyurethane foam composition and insulation for keeping coolness using it |
| BR102015001014A2 (en) * | 2015-01-15 | 2016-08-16 | Fcc Fornecedora Componentes Químicos E Couros Ltda | process for density reduction of thermoplastic polyurethane |
| CN106190002A (en) * | 2016-07-29 | 2016-12-07 | 合肥毅创钣金科技有限公司 | A kind of polyurethane foam glue adding macromole modified calcium carbonate |
| CN107815056A (en) * | 2016-09-12 | 2018-03-20 | 翁秋梅 | A kind of dynamic aggregation thing thermoplastic elastomer (TPE) and its application |
-
2023
- 2023-10-11 CN CN202311312100.3A patent/CN117209715B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1173001A (en) * | 1956-04-10 | 1959-02-18 | Us Rubber Co | Manufacture of polyurethane foam sheets |
| SU840053A1 (en) * | 1979-06-25 | 1981-06-23 | Белорусский Технологический Институтим. C.M. Кирова | Composition for producing stiff porous polyurethan |
| EP0625559A1 (en) * | 1993-05-21 | 1994-11-23 | Bridgestone Corporation | Foamable materials, their preparation and use |
| WO2002050150A1 (en) * | 2000-12-20 | 2002-06-27 | Bayer Aktiengesellschaft | Polyurethane elastomers with an improved hydrolytic stability |
| JP2002226829A (en) * | 2001-02-06 | 2002-08-14 | Nhk Spring Co Ltd | Polyurethane foam sealing material having high water- impervious performance |
| KR20040082548A (en) * | 2003-03-19 | 2004-09-30 | 한국가스공사 | Hard polyurethane foam composition and insulation for keeping coolness using it |
| BR102015001014A2 (en) * | 2015-01-15 | 2016-08-16 | Fcc Fornecedora Componentes Químicos E Couros Ltda | process for density reduction of thermoplastic polyurethane |
| CN106190002A (en) * | 2016-07-29 | 2016-12-07 | 合肥毅创钣金科技有限公司 | A kind of polyurethane foam glue adding macromole modified calcium carbonate |
| CN107815056A (en) * | 2016-09-12 | 2018-03-20 | 翁秋梅 | A kind of dynamic aggregation thing thermoplastic elastomer (TPE) and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117209715A (en) | 2023-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4554293A (en) | Lightly crosslinked linear olefinic polymer foam blends and process for making | |
| US4581383A (en) | Lightly crosslinked linear olefinic polymer foam blends and process for making | |
| CN103467694B (en) | A kind of polyurethane plate and preparation method thereof | |
| CN103374220B (en) | Natural fiber enhancing polyurethane elastic composite and preparation method thereof | |
| CN117209715B (en) | Use method of polyurethane sealing material | |
| CN106674815A (en) | Wood-plastic composite with effects of phase-change energy storage and thermal insulation and preparation method of wood-plastic composite | |
| CN110423331A (en) | A kind of water-swellable flexible flame retardant foamed plastics and preparation method thereof | |
| CN103641972A (en) | High-elasticity polyurethane door and window sealing strip and preparation method thereof | |
| KR100624828B1 (en) | Material for heat insulating and water-sound proof using urethane foam of thin-foaming type and polyurea of ultra high speed hardening type, and the coating method thereof | |
| CN110549707B (en) | Foamed polypropylene composite sheet and preparation method thereof | |
| CN111647383A (en) | High-leveling bi-component solvent-free polyurethane adhesive | |
| CN112708093B (en) | Polyurethane raw material composition for plates, polyurethane heat-insulating material and preparation method thereof | |
| CN110183606A (en) | A kind of mono-component polyurethane micro-foaming material and method with strong adhesive property | |
| MXPA04002881A (en) | Composition for preparing rigid polyurethane foam having good demolding property. | |
| CN112592453A (en) | Hard polyurethane foam plastic with constant temperature function and preparation method thereof | |
| CN110862504A (en) | Preparation method of flame-retardant rigid polyurethane foam plastic | |
| CN105237728A (en) | Material used for preparing rigid foamed plastic, and preparation method of rigid foamed plastic | |
| CN111454412A (en) | Preparation method of light high-strength core material of wind power blade | |
| CN107501509A (en) | A kind of flexible polyurethane foam of phosphorus nitrogen cooperative flame retardant | |
| CN110172174A (en) | A kind of Environmentally-friepolyurethane polyurethane foam heat-insulation material and preparation method thereof | |
| CN116239749A (en) | Polyurethane composite material and preparation method thereof | |
| CN109749264A (en) | A kind of preparation method of the high water-fast polystyrene sandwich panel of heat preservation | |
| CN115536955A (en) | Modified expandable polystyrene particles, preparation method and application thereof | |
| CN109880058A (en) | A kind of preparation method of strand soft segment resistance combustion polyurethane foam | |
| CN111925154A (en) | Wall surface insulation board based on ceramic fibers 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |