CN113683745A - Method for manufacturing polyurethane foam material - Google Patents
Method for manufacturing polyurethane foam material Download PDFInfo
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- CN113683745A CN113683745A CN202111047830.6A CN202111047830A CN113683745A CN 113683745 A CN113683745 A CN 113683745A CN 202111047830 A CN202111047830 A CN 202111047830A CN 113683745 A CN113683745 A CN 113683745A
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- polyurethane foam
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- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 33
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 239000000376 reactant Substances 0.000 claims abstract description 63
- 229920005862 polyol Polymers 0.000 claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 16
- 239000004088 foaming agent Substances 0.000 claims abstract description 16
- 150000003077 polyols Chemical class 0.000 claims abstract description 16
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 15
- 229920000570 polyether Polymers 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 238000005187 foaming Methods 0.000 claims abstract description 13
- 239000006260 foam Substances 0.000 claims abstract description 9
- 239000012948 isocyanate Substances 0.000 claims abstract description 9
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 239000004094 surface-active agent Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 61
- 238000006243 chemical reaction Methods 0.000 claims description 34
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 12
- CCNDOQHYOIISTA-UHFFFAOYSA-N 1,2-bis(2-tert-butylperoxypropan-2-yl)benzene Chemical compound CC(C)(C)OOC(C)(C)C1=CC=CC=C1C(C)(C)OOC(C)(C)C CCNDOQHYOIISTA-UHFFFAOYSA-N 0.000 claims description 6
- JXMRDOOWRDWKJG-UHFFFAOYSA-N 1-methoxy-3-(2-methyl-4-nitroimidazol-1-yl)propan-2-ol Chemical compound COCC(O)CN1C=C([N+]([O-])=O)N=C1C JXMRDOOWRDWKJG-UHFFFAOYSA-N 0.000 claims description 6
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 claims description 6
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 6
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 claims description 6
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000003242 anti bacterial agent Substances 0.000 claims description 6
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 239000002216 antistatic agent Substances 0.000 claims description 6
- WYYQVWLEPYFFLP-UHFFFAOYSA-K chromium(3+);triacetate Chemical compound [Cr+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WYYQVWLEPYFFLP-UHFFFAOYSA-K 0.000 claims description 6
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 6
- 239000002667 nucleating agent Substances 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- -1 mildew preventive Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000003449 preventive effect Effects 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract 1
- 239000003112 inhibitor Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
- C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a method for preparing a polyurethane foam material, which comprises the following steps: (1) mixing polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, and mixing with the first reactant to obtain a second reactant; (3) mixing isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional auxiliary agent and a cross-linking agent into the third reactant to obtain a fourth reactant; (5) and mixing the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material. The method is simple, the energy consumption is low, and the prepared polyurethane foam material has uniform foam hole distribution and good heat preservation performance.
Description
Technical Field
The invention relates to the technical field of polyurethane materials, in particular to a method for manufacturing a polyurethane foam material.
Background
The rigid polyurethane foam is a high molecular polymer prepared by mixing isocyanate and polyether serving as main raw materials through special equipment under the action of various auxiliary agents such as a foaming agent, a catalyst, a flame retardant and the like and performing high-pressure spraying and on-site foaming. Polyurethane has both soft and hard foams. The soft bubbles are in an open pore structure, and the hard bubbles are in a closed pore structure; the soft foam is divided into skinning and non-skinning, the main function of the soft polyurethane foam is buffering, and the soft polyurethane foam is commonly used for sofa furniture, pillows, cushions, toys, clothes and sound insulation linings.
The polyurethane foaming material is prepared by uniformly mixing the compound polyol, the catalyst, the scouring stage, the coupling agent, the foaming agent and the like, then pouring the mixture into a mold for reaction and foaming, wherein in the preparation process, foaming and chain growth or crosslinking reaction are simultaneously carried out in a reaction system, the controllability of the foaming process is poor, the problems of nonuniform cell distribution and difficult control of cell size are easily caused, and meanwhile, the process for preparing the polyurethane foaming material is complex, and the labor cost and the cost are high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for manufacturing a polyurethane foam material, which has the advantages of simple use method and low energy consumption, and simultaneously, the manufactured polyurethane foam material has uniform pore distribution and good heat insulation performance.
In order to solve the technical problem, the invention provides a method for manufacturing a polyurethane foam material, which comprises the following steps: (1) mixing and stirring polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, mixing and stirring the foaming agent and the first reactant to obtain a second reactant; (3) mixing and stirring isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional assistant and a cross-linking agent into the third reactant and stirring to obtain a fourth reactant; (5) and mixing and stirring the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material.
Further, the reaction conditions in the step (1) are as follows: the temperature is 25-35 ℃, the pressure is 5-15MPa, and the stirring speed is 120-150 r/min.
Further, the reaction conditions in step 2 are as follows: the temperature is 50-70 ℃, the pressure is 12-15MPa, and the stirring speed is 180-200 r/min.
Further, the reaction conditions in step 3 are as follows: the temperature is 70-80 ℃, the pressure is 8-10MPa, and the stirring speed is 50-70 r/min.
Further, the reaction conditions of step 4 are as follows: the temperature is 70-120 ℃, the pressure is 20-25MPa, and the stirring speed is 60-70 r/min.
Further, the reaction conditions of step 5 are as follows: the temperature is 120-150 ℃, the pressure is 8-12MPa, and the stirring speed is 200-300 r/min.
Further, the catalyst is compounded by dimethylcyclohexylamine, AM-1, triethylene diamine and dimethylbenzylamine.
Further, the polyether polyol is prepared by mixing polyol, ethylene oxide, chromium acetate and propylene oxide.
Further, the functional auxiliary agent comprises at least one of toner, color paste, an antioxidant, a UV absorbent, a light stabilizer, an antibacterial agent, a mildew preventive, an antistatic agent, a foam stabilizer and a nucleating agent.
Further, the crosslinking agent is selected from at least one of dicumyl peroxide, di- (t-butylperoxyisopropyl) benzene, 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane and 1, 1-di-t-butylperoxy-3, 3, 5-trimethylcyclohexane.
The invention has the beneficial effects that: the method is simple, and the polyurethane foam material prepared by using polyether polyol, a surfactant, water, a foaming agent, isocyanate, a functional assistant, a crosslinking agent, a catalyst and the like under different reaction conditions and stirring speeds has the advantages of uniform cell distribution, good heat insulation performance and the like.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The first embodiment is as follows:
referring to fig. 1, an embodiment of a method for manufacturing a polyurethane foam material of the present invention includes the following steps: (1) mixing and stirring polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, mixing and stirring the foaming agent and the first reactant to obtain a second reactant; (3) mixing and stirring isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional assistant and a cross-linking agent into the third reactant and stirring to obtain a fourth reactant; (5) and mixing and stirring the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material.
The reaction conditions in the step (1) are as follows: the temperature is 25-35 ℃, the pressure is 5-15MPa, and the stirring speed is 120 r/min; the reaction conditions in step 2 were: the temperature is 50 ℃, the pressure is 12MPa, and the stirring speed is 180 r/min; the reaction conditions in step 3 are: the temperature is 70 ℃, the pressure is 8MPa, and the stirring speed is 50 r/min; the reaction conditions of the step 4 are as follows: the temperature is 70 ℃, the pressure is 20MPa, and the stirring speed is 60 r/min; the reaction conditions of the step 5 are as follows: the temperature is 120 ℃, the pressure is 8MPa, and the stirring speed is 200 r/min.
The catalyst is compounded by dimethylcyclohexylamine, AM-1, triethylene diamine and dimethylbenzylamine, and the polyether polyol is mixed by polyalcohol, ethylene oxide, chromium acetate and propylene oxide; the functional auxiliary agent comprises at least one of toner, color paste, antioxidant, UV absorbent, light stabilizer, antibacterial agent, mildew inhibitor, antistatic agent, foam stabilizer and nucleating agent; the crosslinking agent is at least one selected from dicumyl peroxide, di- (tert-butylperoxyisopropyl) benzene, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and 1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane.
Example two:
referring to fig. 1, an embodiment of a method for manufacturing a polyurethane foam material of the present invention includes the following steps: (1) mixing and stirring polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, mixing and stirring the foaming agent and the first reactant to obtain a second reactant; (3) mixing and stirring isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional assistant and a cross-linking agent into the third reactant and stirring to obtain a fourth reactant; (5) and mixing and stirring the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material.
The reaction conditions in the step (1) are as follows: the temperature is 27 ℃, the pressure is 8MPa, and the stirring speed is 130 r/min; the reaction conditions in step 2 were: the temperature is 57 ℃, the pressure is 13MPa, and the stirring speed is 186 r/min; the reaction conditions in step 3 are: the temperature is 73 ℃, the pressure is 9MPa, and the stirring speed is 57 r/min; the reaction conditions of the step 4 are as follows: the temperature is 85 ℃, the pressure is 22MPa, and the stirring speed is 63 r/min; the reaction conditions of the step 5 are as follows: the temperature is 130 ℃, the pressure is 9MPa, and the stirring speed is 230 r/min.
The catalyst is compounded by dimethylcyclohexylamine, AM-1, triethylene diamine and dimethylbenzylamine, and the polyether polyol is mixed by polyalcohol, ethylene oxide, chromium acetate and propylene oxide; the functional auxiliary agent comprises at least one of toner, color paste, antioxidant, UV absorbent, light stabilizer, antibacterial agent, mildew inhibitor, antistatic agent, foam stabilizer and nucleating agent; the crosslinking agent is at least one selected from dicumyl peroxide, di- (tert-butylperoxyisopropyl) benzene, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and 1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane.
Example three:
referring to fig. 1, an embodiment of a method for manufacturing a polyurethane foam material of the present invention includes the following steps: (1) mixing and stirring polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, mixing and stirring the foaming agent and the first reactant to obtain a second reactant; (3) mixing and stirring isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional assistant and a cross-linking agent into the third reactant and stirring to obtain a fourth reactant; (5) and mixing and stirring the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material.
The reaction conditions in the step (1) are as follows: the temperature is 31 ℃, the pressure is 12MPa, and the stirring speed is 140 r/min; the reaction conditions in step 2 were: the temperature is 63 ℃, the pressure is 14MPa, and the stirring speed is 195 r/min; the reaction conditions in step 3 are: the temperature is 76 ℃, the pressure is 9MPa, and the stirring speed is 64 r/min; the reaction conditions of the step 4 are as follows: the temperature is 105 ℃, the pressure is 24MPa, and the stirring speed is 67 r/min; the reaction conditions of the step 5 are as follows: the temperature is 140 ℃, the pressure is 11MPa, and the stirring speed is 270 r/min.
The catalyst is compounded by dimethylcyclohexylamine, AM-1, triethylene diamine and dimethylbenzylamine, and the polyether polyol is mixed by polyalcohol, ethylene oxide, chromium acetate and propylene oxide; the functional auxiliary agent comprises at least one of toner, color paste, antioxidant, UV absorbent, light stabilizer, antibacterial agent, mildew inhibitor, antistatic agent, foam stabilizer and nucleating agent; the crosslinking agent is at least one selected from dicumyl peroxide, di- (tert-butylperoxyisopropyl) benzene, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and 1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane.
Example four:
referring to fig. 1, an embodiment of a method for manufacturing a polyurethane foam material of the present invention includes the following steps: (1) mixing and stirring polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, mixing and stirring the foaming agent and the first reactant to obtain a second reactant; (3) mixing and stirring isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional assistant and a cross-linking agent into the third reactant and stirring to obtain a fourth reactant; (5) and mixing and stirring the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material.
The reaction conditions in the step (1) are as follows: the temperature is 35 ℃, the pressure is 15MPa, and the stirring speed is 150 r/min; the reaction conditions in step 2 were: the temperature is 70 ℃, the pressure is 15MPa, and the stirring speed is 200 r/min; the reaction conditions in step 3 are: the temperature is 80 ℃, the pressure is 10MPa, and the stirring speed is 70 r/min; the reaction conditions of the step 4 are as follows: the temperature is 120 ℃, the pressure is 25MPa, and the stirring speed is 70 r/min; the reaction conditions of the step 5 are as follows: the temperature is 150 ℃, the pressure is 12MPa, and the stirring speed is 300 r/min.
The catalyst is compounded by dimethylcyclohexylamine, AM-1, triethylene diamine and dimethylbenzylamine, and the polyether polyol is mixed by polyalcohol, ethylene oxide, chromium acetate and propylene oxide; the functional auxiliary agent comprises at least one of toner, color paste, antioxidant, UV absorbent, light stabilizer, antibacterial agent, mildew inhibitor, antistatic agent, foam stabilizer and nucleating agent; the crosslinking agent is at least one selected from dicumyl peroxide, di- (tert-butylperoxyisopropyl) benzene, 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and 1, 1-di-tert-butylperoxy-3, 3, 5-trimethylcyclohexane.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The preparation method of the polyurethane foam material is characterized by comprising the following steps: (1) mixing and stirring polyether polyol, a surfactant and water under a high-pressure environment to obtain a first reactant; (2) adding a foaming agent into the first reactant, mixing and stirring the foaming agent and the first reactant to obtain a second reactant; (3) mixing and stirring isocyanate under a high-pressure environment to obtain a third reactant; (4) adding a functional assistant and a cross-linking agent into the third reactant and stirring to obtain a fourth reactant; (5) and mixing and stirring the second reactant and the fourth reactant, and adding a catalyst and water at the same time, and foaming to obtain the polyurethane foam material.
2. The method for producing a polyurethane foam according to claim 1, wherein the reaction conditions in the step (1) are as follows: the temperature is 25-35 ℃, the pressure is 5-15MPa, and the stirring speed is 120-150 r/min.
3. The method for producing the polyurethane foam material according to claim 1, wherein the reaction conditions in the step 2 are as follows: the temperature is 50-70 ℃, the pressure is 12-15MPa, and the stirring speed is 180-200 r/min.
4. The method for producing a polyurethane foam material according to claim 1, wherein the reaction conditions in the step 3 are as follows: the temperature is 70-80 ℃, the pressure is 8-10MPa, and the stirring speed is 50-70 r/min.
5. The method for manufacturing polyurethane foam according to claim 1, wherein the reaction conditions in the step 4 are as follows: the temperature is 70-120 ℃, the pressure is 20-25MPa, and the stirring speed is 60-70 r/min.
6. The method for producing the polyurethane foam material according to claim 1, wherein the reaction conditions in the step 5 are as follows: the temperature is 120-150 ℃, the pressure is 8-12MPa, and the stirring speed is 200-300 r/min.
7. The method for manufacturing a polyurethane foam material according to claim 1, wherein the catalyst is formed by compounding dimethylcyclohexylamine, AM-1, triethylenediamine and dimethylbenzylamine.
8. The method for producing a polyurethane foam material according to claim 1, wherein the polyether polyol is a mixture of a polyol, ethylene oxide, chromium acetate and propylene oxide.
9. The method for preparing polyurethane foam material according to claim 1, wherein the functional auxiliary agent comprises at least one of toner, color paste, antioxidant, UV absorbent, light stabilizer, antibacterial agent, mildew preventive, antistatic agent, foam stabilizer and nucleating agent.
10. The method of producing a polyurethane foam according to claim 1, wherein the crosslinking agent is at least one selected from the group consisting of dicumyl peroxide, di- (t-butylperoxyisopropyl) benzene, 2, 5-dimethyl-2, 5 bis (t-butylperoxy) hexane and 1, 1-di-t-butylperoxy-3, 3, 5-trimethylcyclohexane.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141345A (en) * | 2022-07-28 | 2022-10-04 | 惠州东铭新能源材料股份有限公司 | Anti-aging polyurethane foam material for heat preservation of power battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140513A (en) * | 2014-08-07 | 2014-11-12 | 吕国成 | Polyurethane foaming material and preparation method thereof |
| CN107033319A (en) * | 2016-12-21 | 2017-08-11 | 重庆德盈汽车零部件有限公司 | A kind of open-celled polyurethane foam and preparation method thereof |
| CN112048048A (en) * | 2020-09-16 | 2020-12-08 | 南京工业大学 | Polyurethane foam material and preparation method thereof |
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2021
- 2021-09-08 CN CN202111047830.6A patent/CN113683745A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140513A (en) * | 2014-08-07 | 2014-11-12 | 吕国成 | Polyurethane foaming material and preparation method thereof |
| CN107033319A (en) * | 2016-12-21 | 2017-08-11 | 重庆德盈汽车零部件有限公司 | A kind of open-celled polyurethane foam and preparation method thereof |
| CN112048048A (en) * | 2020-09-16 | 2020-12-08 | 南京工业大学 | Polyurethane foam material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141345A (en) * | 2022-07-28 | 2022-10-04 | 惠州东铭新能源材料股份有限公司 | Anti-aging polyurethane foam material for heat preservation of power battery |
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Application publication date: 20211123 |