CN115160735B - Soybean oil epoxy resin porous acoustic material and preparation method thereof - Google Patents
Soybean oil epoxy resin porous acoustic material and preparation method thereof Download PDFInfo
- Publication number
- CN115160735B CN115160735B CN202210995921.0A CN202210995921A CN115160735B CN 115160735 B CN115160735 B CN 115160735B CN 202210995921 A CN202210995921 A CN 202210995921A CN 115160735 B CN115160735 B CN 115160735B
- Authority
- CN
- China
- Prior art keywords
- parts
- soybean oil
- epoxy resin
- resin porous
- acoustic material
- 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
- 235000012424 soybean oil Nutrition 0.000 title claims abstract description 71
- 239000003549 soybean oil Substances 0.000 title claims abstract description 71
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 46
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 46
- 239000012814 acoustic material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 19
- 239000006260 foam Substances 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000004088 foaming agent Substances 0.000 claims abstract description 15
- 150000008065 acid anhydrides Chemical class 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 26
- 239000002994 raw material Substances 0.000 claims description 26
- 238000005187 foaming Methods 0.000 claims description 18
- 238000005303 weighing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 5
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical group CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 claims description 3
- MWSKJDNQKGCKPA-UHFFFAOYSA-N 6-methyl-3a,4,5,7a-tetrahydro-2-benzofuran-1,3-dione Chemical group C1CC(C)=CC2C(=O)OC(=O)C12 MWSKJDNQKGCKPA-UHFFFAOYSA-N 0.000 claims description 3
- 150000008064 anhydrides Chemical class 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 15
- 239000003208 petroleum Substances 0.000 abstract description 12
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 36
- 239000000463 material Substances 0.000 description 31
- 230000000052 comparative effect Effects 0.000 description 20
- 239000004814 polyurethane Substances 0.000 description 14
- 229920002635 polyurethane Polymers 0.000 description 14
- 241000196324 Embryophyta Species 0.000 description 12
- 229920005862 polyol Polymers 0.000 description 11
- 150000003077 polyols Chemical class 0.000 description 11
- 238000009413 insulation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 239000005022 packaging material Substances 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 229920001228 polyisocyanate Polymers 0.000 description 3
- 239000005056 polyisocyanate Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003981 vehicle Substances 0.000 description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- FRCHKSNAZZFGCA-UHFFFAOYSA-N 1,1-dichloro-1-fluoroethane Chemical compound CC(F)(Cl)Cl FRCHKSNAZZFGCA-UHFFFAOYSA-N 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical group [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2391/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a soybean oil epoxy resin porous acoustic material which comprises the following components in parts by mass: epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-27 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts. The invention also discloses a preparation method of the soybean oil epoxy resin porous acoustic material, which utilizes the epoxidized soybean oil to completely replace petroleum-based epoxy resin to prepare the epoxy resin porous material, reduces environmental pollution and ensures that the prepared soybean oil epoxy resin porous acoustic material has good acoustic performance.
Description
Technical Field
The invention relates to the technical field of acoustic packaging materials for vehicles, in particular to a soybean oil epoxy resin porous acoustic material and a preparation method thereof.
Background
Along with the continuous improvement of the social development level, the requirements of people on life convenience and life quality are continuously improved. The popularization of automobiles promotes the convenience of life, but also brings about noise problems. Noise is used as one of three pollution sources, so that riding comfort of an automobile and health of drivers and passengers are affected, and life quality is reduced. It is necessary to take necessary measures to reduce noise in the vehicle.
The acoustic packaging material can efficiently reduce the noise of the automobile and improve the comfort of the automobile. In addition, the acoustic packaging material can be applied to various fields such as buildings and the like due to excellent sound absorption property and sound attenuation property. The epoxy resin porous acoustic material can effectively reduce various noises as a novel automobile acoustic packaging material.
The polyurethane porous acoustic materials widely used in automobiles at present are all prepared from petroleum, have nonrenewability and have good acoustic performance but large environmental pollution. Some plant-based polyurethane porous materials introduce renewable plant-based components into raw materials, but the plant-based components have small proportion and do not have real environmental protection significance. Therefore, it is necessary to use other means to prepare porous acoustic materials having high environmental protection and high sound absorption properties.
Disclosure of Invention
The invention aims to design and develop a soybean oil epoxy resin porous acoustic material, and the epoxy soybean oil is used for completely replacing petroleum-based epoxy resin, so that the sound absorption performance and the environmental protection performance are improved, and the annular pollution is reduced.
The invention also designs and develops a preparation method of the soybean oil epoxy resin porous acoustic material, the content of raw materials is regulated, foaming and curing effects are guaranteed, the process is simple, the material has better sound absorption effect, and the environmental protection effect is improved.
The technical scheme provided by the invention is as follows:
The soybean oil epoxy resin porous acoustic material comprises the following components in parts by mass:
Epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-27 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts.
Preferably, the epoxidized soybean oil has an epoxy value greater than 6.6Eq/100g.
Preferably, the anhydride curing agent is methyltetrahydrophthalic anhydride.
Preferably, the curing catalyst is 1-methylimidazole.
Preferably, the foaming agent is sodium bicarbonate.
Preferably, the foam stabilizer is silicone oil.
A preparation method of a soybean oil epoxy resin porous acoustic material comprises the following steps:
Step one, weighing the following raw materials in parts by mass:
Epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-27 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts;
Step two, uniformly stirring the raw materials to obtain a mixture;
Step three, cooling the mixture to room temperature after foaming and solidifying at constant temperature, and removing surface crust to obtain the soybean oil epoxy resin porous acoustic material;
Wherein the constant-temperature foaming temperature is 175 ℃, and the constant-temperature foaming and curing time is 25min.
Preferably, the stirring speed in the second step is 1600-1800rpm, and the stirring time is 5min.
The beneficial effects of the invention are as follows:
(1) The soybean oil epoxy resin porous acoustic material designed and developed by the invention has the average sound absorption coefficient up to 0.517, and the acoustic performance is superior to that of the traditional petroleum-based polyurethane porous material and the soybean oil-based polyurethane porous material.
(2) The preparation method of the soybean oil epoxy resin porous acoustic material designed and developed by the invention has no complex equipment in the preparation process of the material, has simple process and convenient operation, and solves the problem that the reaction of the plant-based epoxy resin participates in the harsh requirement on the reaction condition.
(3) According to the preparation method of the soybean oil epoxy resin porous acoustic material designed and developed by the invention, the epoxidized soybean oil is used as a reactant to completely replace the traditional petroleum-based epoxy resin material, so that the soybean oil epoxy resin porous acoustic material is easy to decompose and is more environment-friendly.
Drawings
Fig. 1 is a schematic flow chart of a preparation method of the soybean oil epoxy resin porous acoustic material.
Fig. 2 is a graph showing the relationship between the sound absorption coefficient and the sound frequency of the soybean oil epoxy resin porous acoustic materials prepared by using the epoxidized soybean oil with different contents according to the present invention.
Fig. 3 is a graph showing the relationship between the sound absorption coefficient and the sound frequency of the porous materials prepared in comparative examples 1 to 2 according to the present invention.
Detailed Description
The present invention is described in further detail below to enable those skilled in the art to practice the invention by reference to the specification.
The invention provides a soybean oil epoxy resin porous acoustic material which comprises the following components in parts by weight:
Epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-27 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts;
wherein the epoxy value of the epoxidized soybean oil is greater than 6.6Eq/100g.
In this embodiment, the acid anhydride curing agent is methyltetrahydrophthalic anhydride, the curing catalyst is 1-methylimidazole, the foaming agent is sodium bicarbonate, and the foam stabilizer is silicone oil.
As shown in fig. 1, the invention also provides a preparation method of the soybean oil epoxy resin porous acoustic material, which comprises the following steps:
Step one, weighing the following raw materials in parts by mass:
Epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-27 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts;
Step two, placing all the raw materials into a container, and uniformly stirring by using a stirring device to obtain a mixture;
wherein the rotating speed of the stirring device is 1600-1800rpm, and the stirring time is about 5min, so as to obtain a mixture;
Pouring the mixture into a mould, then placing the mould into an insulation box, foaming and solidifying at constant temperature, taking out the mould from the insulation box, cooling to room temperature, removing surface crust from the material, and obtaining the soybean oil epoxy resin porous acoustic material;
wherein the constant-temperature foaming temperature is 175 ℃, and the constant-temperature foaming and curing time is 25 minutes;
In this embodiment, the mold is made of a material having good thermal conductivity.
Example 1
Step one, weighing the following raw materials in parts by mass:
Epoxidized soybean oil: 74 parts of acid anhydride curing agent: 26 parts of a curing catalyst: 1.05 parts of foaming agent: 8.7 parts of foam stabilizer: 0.55 parts;
step two, putting all the raw materials into a container, and stirring for about 5 minutes by using a stirring device at a rotating speed of 1600-1800rpm to obtain a mixture;
pouring the mixture into a mold made of a material with good heat conductivity, then placing the mold into an insulation box, foaming and curing at the constant temperature of 175 ℃ for 25 minutes, taking out the mold from the insulation box, cooling to room temperature, and removing surface crust from the material to obtain the soybean oil epoxy resin porous acoustic material.
Example 2
Step one, weighing the following raw materials in parts by mass:
epoxidized soybean oil: 75 parts of acid anhydride curing agent: 25 parts of a curing catalyst: 1.01 parts of foaming agent: 8.6 parts of foam stabilizer: 0.52 parts;
step two, putting all the raw materials into a container, and stirring for about 5 minutes by using a stirring device at a rotating speed of 1600-1800rpm to obtain a mixture;
pouring the mixture into a mold made of a material with good heat conductivity, then placing the mold into an insulation box, foaming and curing at the constant temperature of 175 ℃ for 25 minutes, taking out the mold from the insulation box, cooling to room temperature, and removing surface crust from the material to obtain the soybean oil epoxy resin porous acoustic material.
Example 3
Step one, weighing the following raw materials in parts by mass:
epoxidized soybean oil: 76 parts of acid anhydride curing agent: 24 parts of a curing catalyst: 0.97 parts of foaming agent: 8.5 parts of foam stabilizer 0.48 part;
step two, putting all the raw materials into a container, and stirring for about 5 minutes by using a stirring device at a rotating speed of 1600-1800rpm to obtain a mixture;
pouring the mixture into a mold made of a material with good heat conductivity, then placing the mold into an insulation box, foaming and curing at the constant temperature of 175 ℃ for 25 minutes, taking out the mold from the insulation box, cooling to room temperature, and removing surface crust from the material to obtain the soybean oil epoxy resin porous acoustic material.
Example 4
Step one, weighing the following raw materials in parts by mass:
epoxidized soybean oil: 77 parts of acid anhydride curing agent: 23 parts of a curing catalyst: 0.93 part of foaming agent: 8.4 parts of foam stabilizer 0.45 parts;
step two, putting all the raw materials into a container, and stirring for about 5 minutes by using a stirring device at a rotating speed of 1600-1800rpm to obtain a mixture;
pouring the mixture into a mold made of a material with good heat conductivity, then placing the mold into an insulation box, foaming and curing at the constant temperature of 175 ℃ for 25 minutes, taking out the mold from the insulation box, cooling to room temperature, and removing surface crust from the material to obtain the soybean oil epoxy resin porous acoustic material.
Comparative example 1
Step one: weighing the following raw materials in parts by weight:
polyether polyol 330N:40 parts of polyether polyol 3630:60 parts of silicone oil: 0.6 parts of triethanolamine: 2.5 parts of catalyst A1:0.07 part, catalyst A33:1.0 parts of deionized water: 2.5 parts of isocyanate: 35 parts;
step two, putting the rest raw materials except isocyanate into a container, stirring for about 1 minute by using a stirring device at the rotating speed of 1000-1300 rpm to prepare a uniform first mixture, and standing for 3-5 minutes;
Adding isocyanate into the first mixture, and stirring at the rotating speed of 1100-1300 rpm until the heating phenomenon occurs, so as to obtain a second mixture;
Pouring the second mixture into a mould for free foaming, and then placing the mould into an incubator for curing for 2 hours;
And fifthly, taking out the polyurethane porous material from the heat preservation box, cooling to room temperature, and removing surface crust to obtain the petroleum-based polyurethane porous material.
Comparative example 2
Step one, weighing the following raw materials in parts by mass:
Soybean oil polyol: 45 parts of polyether polyol 3630:80 parts of foam stabilizer (silicone oil): 1.2 parts of a blowing agent (monofluorodichloroethane): 2.0 parts of catalyst (catalyst A33): 1.5 parts of a crosslinking agent (triethanolamine): 4.5 parts of polyisocyanate: 55 parts;
Adding the rest raw materials except polyisocyanate into a paper cup, and stirring at room temperature for 60 seconds at a stirring speed of 1000rpm by using a stirrer to obtain a first mixture;
Step two, after polyisocyanate is added into the first mixture, mixing and stirring are carried out for 15s at a stirring speed of 1200rpm, so as to obtain a second mixture;
And thirdly, rapidly pouring the second mixture into a mould, spreading the second mixture in the mould as evenly as possible, covering a mould cover for mould closing foaming, putting the foamed material into a constant temperature box for curing for 30min at 50 ℃, taking out, and curing for 24h at room temperature.
And step four, taking out the cured material, and removing the surface crust to obtain the polyurethane sound absorption material.
Comparative example 3
Firstly, weighing the following raw materials in percentage by mass:
Epoxidized soybean oil: 73 parts of acid anhydride curing agent: 27 parts of a curing catalyst: 1.09 parts of foaming agent: 8.7 parts of foam stabilizer: 0.55 parts;
step two, putting all the raw materials into a container, and stirring for about 5 minutes by using a stirring device at a rotating speed of 1600-1800rpm to obtain a mixture;
Pouring the mixture into a mold made of a material with good heat conductivity, then placing the mold into an incubator, foaming and solidifying the mold for 25 minutes at the constant temperature of 175 ℃, taking the mold out of the incubator, cooling the mold to room temperature, and removing the surface crust of the material to obtain the soybean oil-based polyurethane porous material.
Examples 1 to 4 are target samples prepared for verifying the preparation method of the present invention, comparative example 1 is a polyurethane porous material comparative sample prepared using pure petroleum-based polyether polyols 330N and 3630, comparative example 2 is a polyurethane porous material comparative sample prepared using soybean oil polyol partially substituted for petroleum-based polyol, comparative example 3 is a soybean oil epoxy resin porous acoustic material prepared using 73 parts of epoxidized soybean oil, and examples and comparative examples are named as follows according to the type of sample and the content of plant-based components in the sample: examples 1-4 were respectively designated as SEP-S 74、SEP-S75、SEP-S76、SEP-S77, subscript as the fraction of the corresponding epoxidized soybean oil, comparative example 1 as PU-S 0, subscript as the fraction of the corresponding soybean oil component, i.e., without plant-based components, comparative example 2 as PU-S 45, subscript as the fraction of the corresponding soybean oil component, comparative example 3 as SEP-S 73, subscript as the fraction of the corresponding epoxidized soybean oil.
To verify the sound absorption effect of the soybean oil epoxy resin porous acoustic material of the present invention, the sound absorption coefficient of each sample was measured separately, and the test results are shown in fig. 2 and 3, with the arithmetic average of the sound absorption coefficients at 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz as the average sound absorption coefficient of the materialThe results of the average sound absorption coefficient calculations for examples 1-4 are shown in Table 1 and the results of the average sound absorption coefficient calculations for comparative examples 1-3 are shown in Table 2, for characterizing the overall sound absorption properties of the material.
The average sound absorption coefficient is calculated as follows:
In the method, in the process of the invention, Alpha 125 is the sound absorption coefficient at 125Hz, alpha 250 is the sound absorption coefficient at 250Hz, alpha 500 is the sound absorption coefficient at 500Hz, alpha 1000 is the sound absorption coefficient at 1000Hz, alpha 2000 is the sound absorption coefficient at 2000Hz, and alpha 4000 is the sound absorption coefficient at 4000 Hz.
Table 1 average sound absorption coefficient of examples 1 to 4
Table 2 average sound absorption coefficients of comparative examples 1 to 3
As shown in tables 1 and 2, when the content of the epoxidized soybean oil is 74, 75, 76 and 77 parts, respectively, the average sound absorption coefficients reach 0.4927, 0.5054, 0.4253 and 0.5174, respectively, and the average sound absorption coefficient of the polyurethane porous material prepared from the pure petroleum-based polyol corresponding to comparative example 1 is 0.4601, it can be seen that the epoxy resin porous acoustic material prepared from the epoxidized soybean oil has better sound absorption performance than the pure petroleum-based polyol polyurethane porous material, and the soybean oil epoxy resin porous acoustic material improves the sound absorption performance of the material while introducing the renewable plant-based component, so that the material prepared in this embodiment can be used as an automobile sound absorption material.
The average sound absorption coefficient of the soybean oil-based polyol polyurethane porous material corresponding to comparative example 2 was 0.4883. As can be seen, the average sound absorption coefficient of the materials in most examples is higher than that of the materials in the comparative examples, and the soybean oil-based polyol polyurethane porous material corresponding to comparative example 2 has an improvement effect by partially replacing petroleum-based components with plant-based components, but has a small proportion of the plant-based components, the mass of the plant-based components in the raw materials is only 23.8% of the total mass of the raw materials, so that the environment-friendly degree is lower, while the soybean oil epoxy resin porous acoustic material manufactured in the example has a mass of the plant-based components in the raw materials of more than 66.2% of the total mass of the raw materials, and has a simple manufacturing process and low energy consumption in the manufacturing process, which indicates that the material manufactured in the example is a material with high environmental protection and good acoustic performance.
When the content of the epoxy soybean oil corresponding to the comparative example 3 is 73 parts, the average sound absorption coefficient is only 0.3701, which is far lower than that of the epoxy resin porous acoustic materials prepared in the examples 1 to 4, and the sound absorption performance of the epoxy resin porous acoustic materials prepared when the content of the epoxy soybean oil is lower than 74 parts is too low to effectively absorb the noise in the vehicle; according to related theories such as test optimization design, the soybean oil epoxy resin porous acoustic material with the content of the epoxidized soybean oil of 78 parts and above has better acoustic performance and sound absorption effect, but excessive plant-based components can cause unstable cell structure in the preparation process of the material, so that the material cannot be molded, and therefore, the implementation condition is not provided.
The soybean oil epoxy resin porous acoustic material designed and developed by the invention utilizes the epoxidized soybean oil to completely replace petroleum-based epoxy resin to prepare the epoxy resin porous material, reduces environmental pollution and has good sound absorption performance.
The preparation method of the soybean oil epoxy resin porous acoustic material designed and developed by the invention gives out the formula of the material and the operation details in the preparation process, ensures the foaming and curing effects, and ensures that the material has excellent sound absorption effect.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown, it is well suited to various fields of use for which the invention is suited, and further modifications may be readily made by one skilled in the art, and the invention is therefore not to be limited to the particular details and examples shown and described herein, without departing from the general concepts defined by the claims and the equivalents thereof.
Claims (3)
1. The soybean oil epoxy resin porous acoustic material is characterized by comprising the following components in parts by mass:
Epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-26 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts;
The epoxy value of the epoxidized soybean oil is more than 6.6 Eq/100g;
The anhydride curing agent is methyltetrahydrophthalic anhydride;
The curing catalyst is 1-methylimidazole;
The foaming agent is sodium bicarbonate;
The foam stabilizer is silicone oil.
2. A method of preparing a soybean oil epoxy resin porous acoustic material according to claim 1, comprising the steps of:
Step one, weighing the following raw materials in parts by mass:
Epoxidized soybean oil: 74-77 parts of acid anhydride curing agent: 23-26 parts of a curing catalyst: 0.93-1.09 parts of foaming agent: 8.4-8.7 parts of foam stabilizer: 0.45-0.55 parts;
Step two, uniformly stirring the raw materials to obtain a mixture;
Step three, cooling the mixture to room temperature after foaming and solidifying at constant temperature, and removing surface crust to obtain the soybean oil epoxy resin porous acoustic material;
Wherein the constant-temperature foaming temperature is 175 ℃, and the constant-temperature foaming and curing time is 25min.
3. The method for preparing a soybean oil epoxy resin porous acoustic material according to claim 2, wherein the stirring speed in the second step is 1600-1800rpm, and the stirring time is 5min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210995921.0A CN115160735B (en) | 2022-08-19 | 2022-08-19 | Soybean oil epoxy resin porous acoustic material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210995921.0A CN115160735B (en) | 2022-08-19 | 2022-08-19 | Soybean oil epoxy resin porous acoustic material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115160735A CN115160735A (en) | 2022-10-11 |
| CN115160735B true CN115160735B (en) | 2024-05-17 |
Family
ID=83480753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210995921.0A Active CN115160735B (en) | 2022-08-19 | 2022-08-19 | Soybean oil epoxy resin porous acoustic material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115160735B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB995382A (en) * | 1962-04-17 | 1965-06-16 | Shell Int Research | A process for the preparation of foamed polymeric materials of cellular form; and the resulting polymeric materials and articles made therefrom |
| CN101289570A (en) * | 2008-03-18 | 2008-10-22 | 中山大学 | Epoxy soybean oil resin based rigid cellular plastic and method for preparing same |
| CN101314632A (en) * | 2008-07-23 | 2008-12-03 | 广州市海珥玛植物油脂有限公司 | Method for preparing hard polyurethane foam plastics with soybean oil |
| AR089614A1 (en) * | 2012-12-28 | 2014-09-03 | Consejo Nac Invest Cient Tec | THERMORRIGIDATED FOAMS BASED ON EPOXIDATED VEGETABLE OILS |
| CN105131237A (en) * | 2015-08-20 | 2015-12-09 | 盐城工学院 | Preparation method for plant oil-based rigid polyurethane foam plastics by all-water foaming |
| CN107417885A (en) * | 2017-08-28 | 2017-12-01 | 江苏绿源新材料有限公司 | Biomass-based flame-retardant polyurethane flexible sponge foam and preparation method thereof |
| CN107501821A (en) * | 2017-07-20 | 2017-12-22 | 中国科学院长春应用化学研究所 | A kind of crosslinkable chlorinated polyvinyl chloride foam material and preparation method thereof |
| CN107698889A (en) * | 2017-09-30 | 2018-02-16 | 中国科学院长春应用化学研究所 | pore polyvinyl chloride foam material and preparation method thereof |
| CN109206573A (en) * | 2018-07-18 | 2019-01-15 | 湖北大学 | A kind of flame-proof polyol and preparation method thereof and the application in polyurethane rigid foam plastic |
| CN110016158A (en) * | 2019-03-01 | 2019-07-16 | 雷洪艳 | A kind of preparation method of high-resilience foam material |
| CN110117352A (en) * | 2019-05-31 | 2019-08-13 | 吉林大学 | A kind of palm oil-base polyurethane cellular material and preparation method thereof |
| CN113087870A (en) * | 2021-03-01 | 2021-07-09 | 辽宁石油化工大学 | Preparation method of soybean oil-based polyurethane foam based on different structures |
-
2022
- 2022-08-19 CN CN202210995921.0A patent/CN115160735B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB995382A (en) * | 1962-04-17 | 1965-06-16 | Shell Int Research | A process for the preparation of foamed polymeric materials of cellular form; and the resulting polymeric materials and articles made therefrom |
| CN101289570A (en) * | 2008-03-18 | 2008-10-22 | 中山大学 | Epoxy soybean oil resin based rigid cellular plastic and method for preparing same |
| CN101314632A (en) * | 2008-07-23 | 2008-12-03 | 广州市海珥玛植物油脂有限公司 | Method for preparing hard polyurethane foam plastics with soybean oil |
| AR089614A1 (en) * | 2012-12-28 | 2014-09-03 | Consejo Nac Invest Cient Tec | THERMORRIGIDATED FOAMS BASED ON EPOXIDATED VEGETABLE OILS |
| CN105131237A (en) * | 2015-08-20 | 2015-12-09 | 盐城工学院 | Preparation method for plant oil-based rigid polyurethane foam plastics by all-water foaming |
| CN107501821A (en) * | 2017-07-20 | 2017-12-22 | 中国科学院长春应用化学研究所 | A kind of crosslinkable chlorinated polyvinyl chloride foam material and preparation method thereof |
| CN107417885A (en) * | 2017-08-28 | 2017-12-01 | 江苏绿源新材料有限公司 | Biomass-based flame-retardant polyurethane flexible sponge foam and preparation method thereof |
| CN107698889A (en) * | 2017-09-30 | 2018-02-16 | 中国科学院长春应用化学研究所 | pore polyvinyl chloride foam material and preparation method thereof |
| CN109206573A (en) * | 2018-07-18 | 2019-01-15 | 湖北大学 | A kind of flame-proof polyol and preparation method thereof and the application in polyurethane rigid foam plastic |
| CN110016158A (en) * | 2019-03-01 | 2019-07-16 | 雷洪艳 | A kind of preparation method of high-resilience foam material |
| CN110117352A (en) * | 2019-05-31 | 2019-08-13 | 吉林大学 | A kind of palm oil-base polyurethane cellular material and preparation method thereof |
| CN113087870A (en) * | 2021-03-01 | 2021-07-09 | 辽宁石油化工大学 | Preparation method of soybean oil-based polyurethane foam based on different structures |
Non-Patent Citations (3)
| Title |
|---|
| Acoustically and Thermally Insulating Epoxy Foams Prepared by Non-traditional Expandable Microspheres;Bai Xue等;POLYMER ENGINEERING AND SCIENCE;第59卷(第4期);第799-806页 * |
| Biobased Thermosetting Epoxy Foams: Mechanical and Thermal Characterization;Facundo I. Altuna等;ACS Sustainable Chem. Eng;第3卷;第1406−1411页 * |
| Epoxy foams with tunable acoustic absorption behavior;Yu Xu等;Materials Letters;第194卷;第234–237页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115160735A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107474524B (en) | Polyvinyl alcohol fiber reinforced polyurethane composite acoustic material and preparation method thereof | |
| CN110117352B (en) | Palm oil-based polyurethane porous material and preparation method thereof | |
| CN107312150B (en) | Polyurethane composite acoustic material and preparation method thereof | |
| CN106977927B (en) | High-strength addition type liquid silicone rubber impregnation liquid and preparation and forming methods thereof | |
| CN105131237A (en) | Preparation method for plant oil-based rigid polyurethane foam plastics by all-water foaming | |
| CN111320737B (en) | Polyurethane raw material composition, preparation method and application of polyurethane rigid foam | |
| CN111518252B (en) | Polyurethane self-skinning foam and preparation method thereof | |
| CN113956667B (en) | Foaming silicone rubber and preparation method and application thereof | |
| CN105647189A (en) | Organic foaming silicone rubber | |
| CN115160735B (en) | Soybean oil epoxy resin porous acoustic material and preparation method thereof | |
| CN113999528A (en) | Polyorganosiloxane foam for heat preservation and insulation and preparation method thereof | |
| CN111040104A (en) | Sound-absorbing flame-retardant vegetable oil-based polyurethane foam material and preparation method thereof | |
| CN104558492A (en) | Low-odor and high-flame-retardancy automobile-used polyurethane interior foam and preparation method thereof | |
| CN107513267B (en) | Ethylene propylene diene monomer rubber polyurethane composite acoustic packaging material and preparation method thereof | |
| CN110041496B (en) | Tung oil-based composite polyurethane sound absorption material containing triarrhena particles and preparation method thereof | |
| CN112457463A (en) | Low-pollution polyurethane foam sound absorption material and preparation method thereof | |
| CN110128617B (en) | Polyurethane sound-absorbing material based on two vegetable oil bases and preparation method thereof | |
| CN106220825A (en) | Refrigerator car polyurethane bulk bubble insulation material and preparation method thereof | |
| CN109593225A (en) | A kind of foam silicone rubber foaming agent and preparation method thereof | |
| CN112679693A (en) | Composition for preparing polyurethane self-skinning foam, polyurethane self-skinning foam and preparation method thereof | |
| CN114249873B (en) | Polyurethane soft foam and preparation method thereof | |
| CN108127997B (en) | High-strength polypropylene foam board and preparation method thereof | |
| CN112521572B (en) | Polyurethane foamable composition, polyurethane foam, and method for producing same | |
| CN109705297B (en) | Temperature-humidity response fast-foaming polyurethane filling foam composition, and preparation method and application thereof | |
| CN113968952B (en) | Corn oil-based polyurethane porous material 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 |