CN111171274A - Method for manufacturing double-component polyurethane runway elastic material - Google Patents
Method for manufacturing double-component polyurethane runway elastic material Download PDFInfo
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Abstract
The invention relates to a method for manufacturing a double-component polyurethane runway elastic material, which comprises the following steps: adding carbamate modified MDI, 2,4 '-diphenylmethane diisocyanate, 4' -diphenylmethane diisocyanate, crude MDI and anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring to obtain a first component material; adding methyl chloropalmitolate, trihydroxy polyether, high-activity polyether, ethylenediamine polyether tetrol, amine-terminated polyether, 4' -diaminodicyclohexyl methane, a dispersing agent, a defoaming agent, an ultraviolet light absorber, bentonite and a secondary amine crosslinking agent into a second reaction vessel, and uniformly stirring; adding a molecular sieve water removing agent, filler powder and an organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain a second component material; and mixing and stirring 25 parts of the first component material and 75 parts of the second component material uniformly to obtain the double-component polyurethane runway elastic material.
Description
Technical Field
The invention relates to the field of runway construction, in particular to a method for manufacturing a double-component polyurethane runway elastic material.
Background
The plastic track is also called as an all-weather track and field sports track, has the characteristics of good flatness, high compressive strength, proper hardness and elasticity and stable physical performance, is beneficial to the exertion of the speed and the technology of athletes, effectively improves the sports achievement and reduces the injury rate. The plastic track has certain elasticity and color, certain ultraviolet resistance and aging resistance, and is the best all-weather outdoor sports ground floor material internationally recognized. The plastic track is used for various schools, professional stadiums, track and field tracks, semicircular areas, auxiliary areas, all-people fitness paths, indoor gym training tracks, playground road pavement, indoor and outdoor tracks, tennis, basketball, volleyball, badminton, handball and other places, and activity places such as parks, residential quarters and the like. The plastic track is non-toxic and harmless to the environment and human body. And the plastic track has the characteristics of ultraviolet light resistance, abrasion resistance, burst resistance, ageing resistance, long service life, easiness in maintenance, low maintenance cost and the like.
However, the polyurethane runway elastic material in the market at present is basically composed of two components, wherein the component A is a prepolymer of isocyanate, polyether and polyester, and the prepolymer is heated and reacted by a reaction kettle, and after the NCO content is detected to reach a certain standard value, the prepolymer is cooled, discharged and packaged. The component B is color paste component, mainly comprising polyether, chlorinated paraffin, chlorinated palm oil, stuffing, toner, cross-linking agent, drier, etc. and is prepared through high speed stirring, heating, vacuum pumping, filtering and packing. On the runway pavement site, the components A and B are mixed according to a certain proportion, paved and cured to obtain the elastic runway. However, the traditional manufacturing method of the two-component polyurethane track elastic material can generate a large amount of VOC emission to influence the environmental safety.
Disclosure of Invention
Therefore, the manufacturing method of the two-component polyurethane track elastic material is needed to solve the technical problem that the emission of a large amount of VOC affects the environmental safety.
A method of making a two-component polyurethane runway elastic material, the method comprising the steps of:
adding 6 to 40 parts by mass of chlorinated palm oil methyl ester, 6 to 40 parts by mass of environment-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin into a first reaction container, heating to 80 to 100 ℃, and uniformly stirring;
vacuumizing the first reaction container;
adding 16-50 parts by mass of carbamate modified MDI, 8-17 parts by mass of 2,4 '-diphenylmethane diisocyanate, 8-17 parts by mass of 4,4' -diphenylmethane diisocyanate, 0.6-10 parts by mass of crude MDI and 0.03-2 parts by mass of anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring to obtain a first component material;
adding 8 to 23 parts by mass of methyl chloropalmitolate, 1 to 6 parts by mass of trihydroxy polyether, 1 to 6 parts by mass of high-activity polyether, 0.1 to 2 parts by mass of ethylenediamine polyether tetrol, 0.1 to 2 parts by mass of amino-terminated polyether, 0.1 to 3 parts by mass of 4,4' -diaminodicyclohexylmethane, 0.01 to 0.56 part by mass of dispersant, 0.01 to 0.56 part by mass of defoamer, 0.01 to 0.89 part by mass of ultraviolet light absorber, 0.1 to 0.2 part by mass of bentonite and 0.1 to 5 parts by mass of secondary amine crosslinking agent into a second reaction vessel, and uniformly stirring;
adding 0.1-5 parts by mass of a molecular sieve water removal agent, 33-78 parts by mass of filler powder and 0.1-0.2 part by mass of an organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain a second component material;
and uniformly mixing and stirring 25 parts by mass of the first component material and 75 parts by mass of the second component material to obtain the double-component polyurethane runway elastic material.
In one embodiment, in the step of adding 0.1 to 5 parts by mass of the molecular sieve water removal agent, 33 to 78 parts by mass of the filler powder and 0.1 to 0.2 part by mass of the organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain the second component material, the method further comprises adding 0.01 to 2 parts by mass of the iron oxide red powder into the second reaction vessel, and uniformly mixing and stirring.
In one embodiment, sampling and detecting the second component material is further included after the step of adding 0.1 to 5 parts by mass of the molecular sieve water removing agent, 33 to 78 parts by mass of the filler powder and 0.1 to 0.2 part by mass of the organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain the second component material.
In one embodiment, the step of adding 16 to 50 parts by mass of urethane-modified MDI, 8 to 17 parts by mass of 2,4 '-diphenylmethane diisocyanate, 8 to 17 parts by mass of 4,4' -diphenylmethane diisocyanate, 0.6 to 10 parts by mass of crude MDI, and 0.03 to 2 parts by mass of anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring the mixture to obtain the first component material further comprises detecting the NCO content of the first component material.
In one embodiment, the first reaction vessel is a reaction kettle, and the reaction kettle has heating and stirring functions.
In one embodiment, the first reaction vessel is a stirring tank, and the stirring tank has a heating function.
In one embodiment, the second reaction vessel is a reaction kettle, and the reaction kettle has heating and stirring functions.
In one embodiment, the second reaction vessel is a stirring tank, and the stirring tank has a heating function.
In one embodiment, 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of environmentally-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin are added into a first reaction vessel, heated to 85 to 95 ℃ and stirred uniformly.
In one embodiment, 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of environmentally friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin are added into a first reaction vessel and heated to 90 ℃ and stirred uniformly.
The manufacturing method of the double-component polyurethane runway elastic material has the advantages of reducing energy cost, improving production efficiency, reducing VOC (volatile organic compounds) emission, reducing potential safety hazards possibly occurring in the production process and meeting the requirement of environmental protection. The produced two-component polyurethane track elastic material has low viscosity and is easy to pave.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for making a two-component polyurethane runway elastic material according to one embodiment;
fig. 2 is a schematic flow chart of a method for manufacturing a two-component polyurethane runway elastic material in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a method for manufacturing a two-component polyurethane runway elastic material, which is characterized by comprising the following steps:
step 101: adding 6 to 40 parts by mass of chlorinated palm oil methyl ester, 6 to 40 parts by mass of environment-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin into a first reaction vessel, heating to 80 to 100 ℃, and uniformly stirring.
In this embodiment, the first reaction vessel is a reaction kettle, and the reaction kettle has heating and stirring functions. In another embodiment, the first reaction vessel is a stirring tank, and the stirring tank has a heating function. That is, the first reaction vessel may heat and stir 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of eco-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of a molecular sieve water scavenger, 0.03 to 1 part by mass of an antifoaming agent, and 0.03 to 2 parts by mass of a liquid epoxy resin.
Specifically, in this embodiment, 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of environmentally friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent, and 0.03 to 2 parts by mass of liquid epoxy resin are added into a first reaction vessel, heated to 85 to 95 degrees celsius, and stirred uniformly. Further, 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of environmentally-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin are added into the first reaction vessel and heated to 90 ℃ and stirred uniformly.
Step 103: and vacuumizing the first reaction container.
Specifically, after 6 to 40 parts by mass of methyl chloro-palm oil, 6 to 40 parts by mass of environmentally-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin are heated to 85 to 95 ℃ in a first reaction container and are uniformly stirred, vacuumizing the first reaction container to remove excessive water in the first reaction container.
Step 105: adding 16-50 parts by mass of carbamate modified MDI, 8-17 parts by mass of 2,4 '-diphenylmethane diisocyanate, 8-17 parts by mass of 4,4' -diphenylmethane diisocyanate, 0.6-10 parts by mass of crude MDI and 0.03-2 parts by mass of anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring to obtain the first component material.
Specifically, 25 to 40 parts by mass of urethane-modified MDI, 10 to 15 parts by mass of 2,4 '-diphenylmethane diisocyanate, 10 to 15 parts by mass of 4,4' -diphenylmethane diisocyanate, 2 to 8 parts by mass of crude MDI, and 0.5 to 2 parts by mass of anhydrous phosphoric acid are added into the first reaction vessel after vacuum treatment, and the mixture is uniformly mixed and stirred to obtain the first component material. In another embodiment, 30 to 38 parts by mass of urethane-modified MDI, 12 to 14 parts by mass of 2,4 '-diphenylmethane diisocyanate, 12 to 14 parts by mass of 4,4' -diphenylmethane diisocyanate, 4 to 6 parts by mass of crude MDI, and 1 to 1.8 parts by mass of anhydrous phosphoric acid are added to the first reaction vessel after vacuum treatment, and mixed and stirred uniformly to obtain the first component material. Further, 35 parts by mass of urethane-modified MDI, 13 parts by mass of 2,4 '-diphenylmethane diisocyanate, 13 parts by mass of 4,4' -diphenylmethane diisocyanate, 5 parts by mass of crude MDI, and 1.5 parts by mass of anhydrous phosphoric acid were added to the first reaction vessel after vacuum treatment, and mixed and stirred uniformly to obtain a first component material.
Step 107: adding 8 to 23 parts by mass of methyl chloropalmitolate, 1 to 6 parts by mass of trihydroxy polyether, 1 to 6 parts by mass of high-activity polyether, 0.1 to 2 parts by mass of ethylenediamine polyether tetrol, 0.1 to 2 parts by mass of amino-terminated polyether, 0.1 to 3 parts by mass of 4,4' -diaminodicyclohexylmethane, 0.01 to 0.56 parts by mass of dispersant, 0.01 to 0.56 parts by mass of defoamer, 0.01 to 0.89 parts by mass of ultraviolet light absorber, 0.1 to 0.2 parts by mass of bentonite and 0.1 to 5 parts by mass of secondary amine crosslinking agent into a second reaction vessel, and uniformly stirring.
In this embodiment, the second reaction vessel is a reaction kettle, and the reaction kettle has heating and stirring functions. In another embodiment, the second reaction vessel is a stirring tank, and the stirring tank has a heating function.
That is, the second reaction vessel is used to stir and heat-treat, by mass, 8 to 23 parts of methyl chloropalmitolate, 1 to 6 parts of trihydroxy polyether, 1 to 6 parts of high-activity polyether, 0.1 to 2 parts of ethylenediamine polyether tetraol, 0.1 to 2 parts of amino-terminated polyether, 0.1 to 3 parts of 4,4' -diaminodicyclohexylmethane, 0.01 to 0.56 parts of dispersant, 0.01 to 0.56 parts of defoamer, 0.01 to 0.89 parts of ultraviolet light absorber, 0.1 to 0.2 parts of bentonite, and 0.1 to 5 parts of secondary amine crosslinking agent.
Specifically, 10 to 20 parts by mass of methyl chloropalmitolate, 2 to 5 parts by mass of trihydroxy polyether, 2 to 5 parts by mass of high activity polyether, 0.5 to 1.5 parts by mass of ethylenediamine polyether tetrol, 0.5 to 1.5 parts by mass of amino-terminated polyether, 1 to 2 parts by mass of 4,4' -diaminodicyclohexyl methane, 0.1 to 0.4 parts by mass of dispersant, 0.1 to 0.5 parts by mass of defoamer, 0.1 to 0.6 parts by mass of ultraviolet light absorber, 0.15 to 0.2 parts by mass of bentonite and 1 to 4 parts by mass of secondary amine crosslinking agent are added into a second reaction vessel and stirred uniformly. Further, 15 parts by mass of methyl chloropalmitolate, 4 parts by mass of trihydroxy polyether, 3 parts by mass of high-activity polyether, 1 part by mass of ethylenediamine polyether tetraol, 1 part by mass of amino-terminated polyether, 1.5 parts by mass of 4,4' -diaminodicyclohexylmethane, 0.2 part by mass of dispersant, 0.3 part by mass of defoaming agent, 0.4 part by mass of ultraviolet light absorber, 0.18 part by mass of bentonite, and 3 parts by mass of secondary amine crosslinking agent were added to the second reaction vessel and stirred uniformly.
Step 109: and adding 0.1-5 parts by mass of a molecular sieve water removal agent, 33-78 parts by mass of filler powder and 0.1-0.2 part by mass of an organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain a second component material.
Specifically, 1 to 4 parts by mass of a molecular sieve water removal agent, 40 to 70 parts by mass of filler powder and 0.1 to 0.2 part by mass of an organic bismuth drier are added into the second reaction vessel and uniformly mixed and stirred to obtain a second component material. In another embodiment, 2 to 3 parts by mass of a molecular sieve water removal agent, 50 to 60 parts by mass of filler powder and 0.1 to 0.2 part by mass of an organic bismuth drier are added into the second reaction vessel and mixed and stirred uniformly to obtain a second component material. Further, adding 3 parts by mass of a molecular sieve water removal agent, 55 parts by mass of filler powder and 0.15 part by mass of an organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain a second component material.
In one embodiment, in the step 109 of adding 0.1 to 5 parts by mass of the molecular sieve water removing agent, 33 to 78 parts by mass of the filler powder and 0.1 to 0.2 part by mass of the organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain the second component material, the step further comprises adding 0.01 to 2 parts by mass of the iron oxide red powder into the second reaction vessel, and uniformly mixing and stirring.
That is, 0.1 to 5 parts of molecular sieve water removal agent, 33 to 78 parts of filler powder, 0.1 to 0.2 part of organic bismuth drier and 0.01 to 2 parts of iron oxide red powder are added into the second reaction vessel by mass and mixed uniformly to obtain the second component material.
Step 111: and uniformly mixing and stirring 25 parts by mass of the first component material and 75 parts by mass of the second component material to obtain the double-component polyurethane runway elastic material.
Namely, the first component material and the second component material are mixed and stirred uniformly according to a ratio of one to three to obtain the double-component polyurethane runway elastic material.
The manufacturing method of the double-component polyurethane runway elastic material has the advantages of reducing energy cost, improving production efficiency, reducing VOC (volatile organic compounds) emission, reducing potential safety hazards possibly occurring in the production process and meeting the requirement of environmental protection. The produced two-component polyurethane track elastic material has low viscosity and is easy to pave.
Technical indexes of the double-component polyurethane runway elastic material obtained by the manufacturing method of the double-component polyurethane runway elastic material meet or exceed the requirements of a new national standard GB 36246-2018, and typical index detection values are as follows:
in order to increase the yield of the second component material, referring to fig. 2, in one embodiment, after the step 109 of adding 0.1 to 5 parts by mass of the molecular sieve water remover, 33 to 78 parts by mass of the filler powder, and 0.1 to 0.2 part by mass of the organobismuth drier into the second reaction vessel, uniformly mixing and stirring the mixture to obtain the second component material, the method further includes the step 110: sampling and detecting the second component material. Specifically, the sampling detection of the second component material comprises the steps of detecting the fineness of the second component material and detecting the viscosity of the second component material. Further, whether the fineness of the second component material is less than 200 micrometers is detected, and if the fineness of the second component material is less than 200 micrometers, the fineness of the second component material is in accordance with the specification. If the fineness of the second component material is not less than 200 microns, the fineness of the second component material is not in accordance with the specification. It is detected whether the viscosity of the second component material is in the range of 10000cps to 20000cps, and if the viscosity of the second component material is in the range of 10000cps to 20000cps, the viscosity of the second component material meets the specification. If the viscosity of the second component material is not in the range of 10000cps to 20000cps, the viscosity of the second component material does not meet the specification. Therefore, the yield of the second component material is increased, and the yield of the double-component polyurethane runway elastic material obtained by the manufacturing method of the double-component polyurethane runway elastic material is increased.
In order to increase the yield of the first component material, please refer to fig. 2, in one embodiment, after the step 105 of adding 16 parts to 50 parts by mass of urethane-modified MDI, 8 parts to 17 parts by mass of 2,4 '-diphenylmethane diisocyanate, 8 parts to 17 parts by mass of 4,4' -diphenylmethane diisocyanate, 0.6 parts to 10 parts by mass of crude MDI, and 0.03 parts to 2 parts by mass of anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring to obtain the first component material, the method further includes the step 106: and detecting the NCO content of the first component material. That is, the NCO content of the first component material was measured. The NCO content of the first component material is as specified if it is in the range of 8% to 11%. If the NCO content of the first component material is not in the range of 8% to 11%, the NCO content of the first component material is out of specification. Therefore, the yield of the first component material is increased, and the yield of the double-component polyurethane runway elastic material obtained by the manufacturing method of the double-component polyurethane runway elastic material is increased.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for manufacturing a two-component polyurethane runway elastic material is characterized by comprising the following steps:
adding 6 to 40 parts by mass of chlorinated palm oil methyl ester, 6 to 40 parts by mass of environment-friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water removal agent, 0.03 to 1 part by mass of defoaming agent and 0.03 to 2 parts by mass of liquid epoxy resin into a first reaction container, heating to 80 to 100 ℃, and uniformly stirring;
vacuumizing the first reaction container;
adding 16-50 parts by mass of carbamate modified MDI, 8-17 parts by mass of 2,4 '-diphenylmethane diisocyanate, 8-17 parts by mass of 4,4' -diphenylmethane diisocyanate, 0.6-10 parts by mass of crude MDI and 0.03-2 parts by mass of anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring to obtain a first component material;
adding 8 to 23 parts by mass of methyl chloropalmitolate, 1 to 6 parts by mass of trihydroxy polyether, 1 to 6 parts by mass of high-activity polyether, 0.1 to 2 parts by mass of ethylenediamine polyether tetrol, 0.1 to 2 parts by mass of amino-terminated polyether, 0.1 to 3 parts by mass of 4,4' -diaminodicyclohexylmethane, 0.01 to 0.56 part by mass of dispersant, 0.01 to 0.56 part by mass of defoamer, 0.01 to 0.89 part by mass of ultraviolet light absorber, 0.1 to 0.2 part by mass of bentonite and 0.1 to 5 parts by mass of secondary amine crosslinking agent into a second reaction vessel, and uniformly stirring;
adding 0.1-5 parts by mass of a molecular sieve water removal agent, 33-78 parts by mass of filler powder and 0.1-0.2 part by mass of an organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain a second component material;
and uniformly mixing and stirring 25 parts by mass of the first component material and 75 parts by mass of the second component material to obtain the double-component polyurethane runway elastic material.
2. The method of claim 1, wherein the step of adding 0.1 to 5 parts by mass of the molecular sieve water removal agent, 33 to 78 parts by mass of the filler powder and 0.1 to 0.2 parts by mass of the organic bismuth drier into the second reaction vessel to be mixed and stirred uniformly to obtain a second component material further comprises the step of adding 0.01 to 2 parts by mass of the iron oxide red toner into the second reaction vessel to be mixed and stirred uniformly.
3. The method as claimed in claim 1, further comprising a second component material sampling detection after the step of adding 0.1 to 5 parts by mass of the molecular sieve water removal agent, 33 to 78 parts by mass of the filler powder and 0.1 to 0.2 parts by mass of the organic bismuth drier into the second reaction vessel, and uniformly mixing and stirring to obtain a second component material.
4. The method according to claim 1, wherein the step of adding 16 to 50 parts by mass of urethane-modified MDI, 8 to 17 parts by mass of 2,4 '-diphenylmethane diisocyanate, 8 to 17 parts by mass of 4,4' -diphenylmethane diisocyanate, 0.6 to 10 parts by mass of crude MDI, and 0.03 to 2 parts by mass of anhydrous phosphoric acid into the first reaction vessel after vacuum treatment, and uniformly mixing and stirring to obtain the first component material further comprises detecting the content of the first component NCO material.
5. The method of claim 1, wherein the first reaction vessel is a reaction kettle having heating and stirring functions.
6. The method of claim 1, wherein the first reaction vessel is a stirred tank having a heating function.
7. The method of claim 1, wherein the second reaction vessel is a reaction kettle having heating and stirring functions.
8. The method of claim 1, wherein the second reaction vessel is a stirred tank having a heating function.
9. The method according to claim 1, wherein 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of environmentally friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water scavenger, 0.03 to 1 part by mass of defoamer and 0.03 to 2 parts by mass of liquid epoxy resin are added into a first reaction vessel and heated to 85 to 95 ℃ and stirred uniformly.
10. The method according to claim 1, wherein 6 to 40 parts by mass of methyl chloropalmitolate, 6 to 40 parts by mass of environmentally friendly 52# chlorinated paraffin, 0.3 to 5 parts by mass of molecular sieve water scavenger, 0.03 to 1 part by mass of defoamer and 0.03 to 2 parts by mass of liquid epoxy resin are added into a first reaction vessel and heated to 90 ℃ and stirred uniformly.
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| CN202010237417.5A CN111171274A (en) | 2020-03-30 | 2020-03-30 | Method for manufacturing double-component polyurethane runway elastic material |
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| CN202010237417.5A CN111171274A (en) | 2020-03-30 | 2020-03-30 | Method for manufacturing double-component polyurethane runway elastic material |
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Application publication date: 20200519 |