CN113968952A - Corn oil-based polyurethane porous material and preparation method thereof - Google Patents
Corn oil-based polyurethane porous material and preparation method thereof Download PDFInfo
- Publication number
- CN113968952A CN113968952A CN202111541404.8A CN202111541404A CN113968952A CN 113968952 A CN113968952 A CN 113968952A CN 202111541404 A CN202111541404 A CN 202111541404A CN 113968952 A CN113968952 A CN 113968952A
- Authority
- CN
- China
- Prior art keywords
- corn oil
- parts
- based polyurethane
- porous
- isocyanate
- 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.)
- Granted
Links
Images
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
- C08G18/30—Low-molecular-weight compounds
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- 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
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Abstract
The invention belongs to the technical field of acoustic materials for automobiles, and particularly relates to a corn oil-based polyurethane porous material and a preparation method thereof. The material comprises the following components in percentage by mass:
corn oil polyhydric alcohol,
Part of polyether polyol,
Isocyanate, 2.5 parts of deionized water, 2.5 parts of triethanolamine,
Part A1, 1.0 part A33 and 0.6 part silicone oil. Hair brushThe corn oil-based polyurethane porous material is obviously designed and developed, and the corn oil polyol is used for replacing the petroleum-based polyol to prepare the polyurethane sound absorption material, so that the polyurethane sound absorption material has better environment friendliness, better low-frequency sound absorption effect and better sound insulation performance. Meanwhile, the invention also provides a preparation method of the corn oil-based polyurethane porous material.
Description
Technical Field
The invention belongs to the technical field of acoustic materials for automobiles, and particularly relates to a corn oil-based polyurethane porous material and a preparation method thereof.
Background
With the rapid development of transportation and industrial activities, noise pollution has become one of the major environmental problems facing human society. As an indispensable vehicle in people's life, the automobile also has higher and higher requirements on the comfort and the safety of the automobile. Noise pollution, which is one of the three main pollution sources, affects not only the comfort of the automobile but also the health of the driver and passengers, and therefore, it is necessary to take necessary measures to reduce the noise in the vehicle.
The conventional measure of noise reduction in the car at present is to adopt an acoustic packaging material, the mechanism of the acoustic packaging material is to consume acoustic energy through vibration and friction of air, so that the noise in the car is reduced to meet the requirements of people, and polyurethane foam is a common acoustic packaging material because the acoustic packaging material has the unique advantages of light weight, easiness in processing and the like.
At present, the polyurethane porous material used on an automobile has a good sound absorption effect in a high-frequency range, the low-frequency sound absorption effect is not ideal, and the prepared raw materials are all extracted from fossil raw materials, so that the pollution to the environment is large, and therefore, other environment-friendly raw materials are necessary to replace petrochemical raw materials to prepare the polyurethane porous material with high environmental protection performance and high and low-frequency sound absorption performance.
Disclosure of Invention
The invention designs and develops a corn oil-based polyurethane porous material, and the corn oil polyol is used for replacing petroleum-based polyol to prepare the polyurethane porous material, so that the environmental pollution is reduced, and the corn oil-based polyurethane porous material has better environmental protection, low-frequency sound absorption effect and sound insulation performance.
The invention provides a preparation method of a corn oil-based polyurethane porous material, which gives the stirring speed and the stirring time in the preparation process of the material, ensures that the material is uniformly mixed and can be foamed in time, gives the temperature value in the heat preservation treatment, effectively controls the temperature, ensures the foaming effect, and also ensures the sound absorption performance and the sound insulation performance of the polyurethane material.
The technical scheme of the invention is described as follows by combining the attached drawings:
the corn oil-based polyurethane porous material is composed of the following materials in parts by weight:
corn oil polyol: 40-50 parts of polyether polyol: 50-60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts of catalyst A1: 0.06-0.1 portion, catalyst A33:1.0 portion, deionized water: 2.5 parts of isocyanate: 33-38 shares;
wherein the hydroxyl value range of the corn oil polyalcohol is 190-210 mgKOH/g.
The polyether polyol is GP-3630.
The isocyanate is polymeric MDI.
The preparation method of the corn oil-based polyurethane porous material comprises the following steps:
step one, weighing the following raw materials in parts by weight:
corn oil polyol: 40-50 parts of polyether polyol: 50-60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts of catalyst A1: 0.06-0.1 portion, catalyst A33:1.0 portion, deionized water: 2.5 parts of isocyanate: 33-38 shares;
wherein the hydroxyl value range of the corn oil polyalcohol is 190-210 mgKOH/g;
putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1000-1300 rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3-5 minutes;
adding isocyanate, and stirring uniformly at the rotating speed of 1100-1300 rpm and accompanied with a heating phenomenon to obtain a mixture 2;
pouring the mixture 2 into a mold for free foaming, and then putting the mold into a heat preservation box for curing for 2 hours;
and step five, taking out the porous corn oil-based polyurethane material from the heat preservation box, cooling the porous corn oil-based polyurethane material to room temperature, and removing surface crusts to obtain the porous corn oil-based polyurethane material.
The temperature of the heat preservation box in the fourth step is 50 ℃.
The invention has the beneficial effects that:
1) the corn oil-based polyurethane porous material provided by the invention has the highest average sound absorption coefficient of 0.4991, the highest average sound insulation amount of 24.95dB and better acoustic performance than that of the traditional petroleum-based polyurethane porous material;
2) the preparation method of the corn oil-based polyurethane porous material provided by the invention is simple in process and convenient to operate, and is suitable for automobile sound absorption and insulation materials;
3) according to the preparation method of the corn oil-based polyurethane porous material, provided by the invention, corn oil polyalcohol is used as a reactant to partially replace a traditional fossil material, so that the decomposition treatment is easy, and the preparation method is more energy-saving and environment-friendly.
4) The preparation method of the corn oil-based polyurethane porous material provided by the invention has high preparation success rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of a method for preparing a corn oil-based polyurethane porous material according to the present invention;
FIG. 2 is a graph of sound absorption coefficient versus frequency for examples and reference examples of the corn oil-based polyurethane porous material and the method for preparing the same according to the present invention;
FIG. 3 is a graph of a low-frequency part of sound absorption coefficient versus frequency of three examples and a reference example in the corn oil-based polyurethane porous material and the preparation method thereof;
FIG. 4 is a graph showing the relationship between sound absorption coefficient and frequency of three examples of the corn oil-based polyurethane porous material and the preparation method thereof and a palm oil-based polyurethane porous material according to the present invention;
FIG. 5 is a graph showing the relationship between sound insulation and frequency of three examples and a reference example in the corn oil-based polyurethane porous material and the preparation method thereof.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The corn oil-based polyurethane porous material is composed of the following materials in parts by weight:
corn oil polyol: 40-50 parts of polyether polyol: 50-60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts of catalyst A1: 0.06-0.1 portion, catalyst A33:1.0 portion, deionized water: 2.5 parts of isocyanate: 33-38 shares;
wherein the hydroxyl value range of the corn oil polyalcohol is 190-210 mgKOH/g.
The polyether polyol is GP-3630.
The isocyanate is polymeric MDI.
Referring to fig. 1, a method for preparing a corn oil-based polyurethane porous material includes the following steps:
step one, weighing the following raw materials in parts by weight:
corn oil polyol: 40-50 parts of polyether polyol: 50-60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts of catalyst A1: 0.06-0.1 portion, catalyst A33:1.0 portion, deionized water: 2.5 parts of isocyanate: 33-38 shares;
wherein the hydroxyl value range of the corn oil polyalcohol is 190-210 mgKOH/g;
putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1000-1300 rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3-5 minutes;
adding isocyanate, and stirring at the rotating speed of 1100-1300 rpm to obtain a mixture 2;
upon addition of the isocyanate and stirring, the material begins to undergo a chemical reaction accompanied by an exothermic reaction, and the temperature change is rapid and significant.
When a large container is used for preparing a large amount of materials, a temperature sensor can be arranged on the wall surface of the container to monitor temperature change; when a small container is used for preparing a small amount of material, the material can be directly attached to the wall surface of the container, and the temperature change can be sensed by hands. When the temperature obviously rises, the heating phenomenon occurs, and the volume of the mixture expands when the heating phenomenon occurs, so that the mixture can be used as a judgment characteristic.
Pouring the mixture 2 into a mold for free foaming, and then putting the mold into a heat preservation box for curing for 2 hours;
and step five, taking out the porous corn oil-based polyurethane material from the heat preservation box, cooling the porous corn oil-based polyurethane material to room temperature, and removing surface crusts to obtain the porous corn oil-based polyurethane material.
The temperature of the heat preservation box in the fourth step is 50 ℃.
Example 1
Step one, weighing the following raw materials in parts by mass:
corn oil polyol: 40 parts of polyether polyol: 60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts, A1: 0.07 part, A33:1.0 part and deionized water: 2.5 parts;
isocyanate: 35 parts of (A).
Putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1000rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3 minutes;
adding isocyanate, and stirring uniformly at the rotating speed of 1300rpm and accompanied with a heating phenomenon to obtain a mixture 2;
pouring the mixture 2 into a mold for free foaming, and then putting the mold into a 50 ℃ heat preservation box for curing for 2 hours;
and step five, taking out the porous corn oil-based polyurethane material from the heat preservation box, cooling the porous corn oil-based polyurethane material to room temperature, and removing surface crusts to obtain the porous corn oil-based polyurethane material.
Example 2
Step one, weighing the following raw materials in parts by mass:
corn oil polyol: 45 parts of polyether polyol: 55 parts and silicone oil: 0.6 part, triethanolamine: 2.5 parts, A1: 0.07 part, A33:1.0 part and deionized water: 2.5 parts;
isocyanate: 33 parts of.
Putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1300rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3 minutes;
adding isocyanate, and stirring uniformly at the rotating speed of 1200rpm and accompanied with a heating phenomenon to obtain a mixture 2;
pouring the mixture 2 into a mold for free foaming, and then putting the mold into a 50 ℃ heat preservation box for curing for 2 hours;
and step five, taking out the porous corn oil-based polyurethane material from the heat preservation box, cooling the porous corn oil-based polyurethane material to room temperature, and removing surface crusts to obtain the porous corn oil-based polyurethane material.
Example 3
Step one, weighing the following raw materials in parts by mass:
corn oil polyol: 50 parts of polyether polyol: 50 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts, A1: 0.07 part, A33:1.0 part and deionized water: 2.5 parts;
isocyanate: 38 parts of the raw materials.
Putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1200rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3 minutes;
adding isocyanate, and stirring uniformly at the rotating speed of 1000rpm and accompanied with a heating phenomenon to obtain a mixture 2;
pouring the mixture 2 into a mold for free foaming, and then putting the mold into a 50 ℃ heat preservation box for curing for 2 hours;
and step five, taking out the porous corn oil-based polyurethane material from the heat preservation box, cooling the porous corn oil-based polyurethane material to room temperature, and removing surface crusts to obtain the porous corn oil-based polyurethane material.
Reference example
Weighing the following raw materials in percentage by mass:
polyether polyol 330N: 40 parts of polyether polyol 3630: 60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts, A1: 0.07 part, A33:1.0 part and deionized water: 2.5 parts;
isocyanate: 35 parts of (A).
Putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1000-1300 rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3-5 minutes;
adding isocyanate, and stirring uniformly at the rotating speed of 1100-1300 rpm and accompanied with a heating phenomenon to obtain a mixture 2;
pouring the mixture 2 into a mold for free foaming, and then putting the mold into a heat preservation box for curing for 2 hours;
and step five, taking out the porous material from the heat preservation box, cooling the porous material to room temperature, and then removing the surface crust to obtain the petroleum-based polyurethane porous material.
Examples 1-3 are target samples prepared to verify the formulation, and the reference example is a comparative sample prepared using petroleum-based polyether polyols 330N and 3630. The examples and reference examples were named, respectively, according to the parts of corn oil polyol in the sample: PU-P40、PU-P45、PU-P50、PU-P0The subscripts are the parts of the corresponding corn oil polyol.
In order to verify the sound absorption effect of the corn oil-based polyurethane porous material of the present invention, the sound absorption coefficient of each sample was measured, and the test results are shown in fig. 2 and 3. In the invention, the arithmetic mean value of the sound absorption coefficients at 125Hz, 250Hz, 500Hz, 1000Hz, 2000Hz and 4000Hz is used as the average sound absorption of the materialCoefficient of performance
The calculation results of the average sound absorption coefficient are shown in table 1, which are used to reflect the overall sound absorption performance of the material. The average sound absorption coefficient calculation formula is as follows:
in the formula, alpha125The sound absorption coefficient of the material when the sound frequency is 125 Hz; alpha is alpha250The sound absorption coefficient of the material when the sound frequency is 250 Hz; alpha is alpha500The sound absorption coefficient of the material when the sound frequency is 500 Hz; alpha is alpha1000The sound absorption coefficient of the material when the sound frequency is 1000 Hz; alpha is alpha2000The sound absorption coefficient of the material when the sound frequency is 2000 Hz; alpha is alpha4000The sound absorption coefficient of the material when the sound frequency is 4000 Hz.
TABLE 1 average Sound absorption coefficient
As shown in table 1, the average sound absorption coefficient reached 0.4991, 0.4942, 0.4694 when the corn oil polyol content was 40, 45, 50 parts, respectively, while the average sound absorption coefficient of the polyurethane prepared from the petroleum-based polyol was 0.4601. It can be seen that the addition of corn oil polyol improves the sound absorption properties of the material relative to petroleum-based polyol polyurethane materials. The result shows that the polyurethane porous material prepared by adding the corn oil polyol has better sound absorption performance, the use of petroleum-based polyol is reduced, the environment-friendly polyurethane is prepared on the premise of not sacrificing acoustic performance, and the sound absorption material prepared in the embodiment can be used as an automobile sound absorption material.
As shown in FIGS. 2 and 3, the comparative reference example curve PU-P0The addition of the corn oil polyalcohol is found to improve the sound absorption coefficient in the frequency bands of 100-400 Hz, 800-1000 Hz and 1250-6300 Hz; in thatIn the frequency range of 400-800 Hz, the sound absorption coefficient of the polyurethane material added with 40 parts of corn oil polyol is higher than that of the petroleum-based polyurethane material; the sound absorption coefficient of the polyurethane material added with 45 parts of corn oil polyol is higher than that of a petroleum-based polyurethane material within the frequency range of 1000-1250 Hz. The results show that the sound absorption performance of the low-frequency band of the embodiment is better than that of the reference example, the sound absorption performance of other frequency bands is also better than that of the reference example on the whole, and further, the corn oil-based polyurethane prepared by the method has good sound absorption effect, and the total performance can better meet the requirements of the acoustic packaging sound absorption performance of automobiles than petroleum-based polyurethane.
As shown in fig. 4, in order to verify the sound absorption effect of the examples of the present invention, examples (corresponding to PU-examples in fig. 4) with the highest average sound absorption coefficient in the patent document "palm oil-based polyurethane porous material and its preparation method-201910467220.8" were introduced for comparison. As can be seen from FIG. 4, the PU-embodiment has better sound absorption effect in the frequency bands of 250-630 Hz and 1300-1800 Hz, and the embodiment of the invention has better sound absorption effect in other frequency channels. Generally speaking, the sound absorption effect of the embodiment of the invention is better in a frequency band of 630-6300 Hz, the sound absorption performance is more stable, and the requirement of the sound absorption performance of the acoustic package of the automobile can be met in a certain frequency range.
In order to verify the sound insulation effect of the corn oil-based polyurethane porous material of the present invention, the sound insulation amount of each sample was measured, and the test results are shown in fig. 5. In the invention, the arithmetic average value of 17 1/3 octaves of sound insulation quantity on a frequency band of 100-4000 Hz is used as the average sound insulation quantity of the material
The average sound insulation calculation results are shown in table 2, which are used for reflecting the overall sound insulation performance of the material. The average sound insulation amount calculation formula is as follows:
in the formula, beta100The sound insulation quantity of the material when the sound frequency is 100 Hz; beta is a125The sound insulation quantity of the material when the sound frequency is 125 Hz; beta is a160The sound insulation quantity of the material when the sound frequency is 160 Hz; beta is a200The sound insulation quantity of the material when the sound frequency is 200 Hz; beta is a250The sound insulation quantity of the material when the sound frequency is 250 Hz; beta is a315The sound insulation quantity of the material when the sound frequency is 315 Hz; beta is a400The sound insulation quantity of the material when the sound frequency is 400 Hz; beta is a500The sound insulation quantity of the material when the sound frequency is 500 Hz; beta is a630The sound insulation quantity of the material when the sound frequency is 630 Hz; beta is a800The sound insulation quantity of the material when the sound frequency is 800 Hz; beta is a1000The sound insulation quantity of the material when the sound frequency is 1000 Hz; beta is a1250The sound insulation quantity of the material when the sound frequency is 1250 Hz; beta is a1600The sound insulation quantity of the material when the sound frequency is 1600 Hz; beta is a2000The sound insulation quantity of the material when the sound frequency is 2000 Hz; beta is a2500The sound insulation quantity of the material when the sound frequency is 2500 Hz; beta is a3150The sound insulation quantity of the material when the sound frequency is 3150 Hz; beta is a4000The sound insulation of the material is the sound insulation when the sound frequency is 4000 Hz.
TABLE 2 average sound insulation (unit: dB)
As shown in Table 2, when the corn oil polyol content was 40 parts, 45 parts, and 50 parts, the average sound insulation amounts reached 22.06dB, 21.38dB, and 24.95dB, respectively, and the average sound insulation amount of the polyurethane prepared from the petroleum-based polyol was 22.63 dB. It can be seen that the sound insulation properties of the corn oil-based polyurethane materials prepared by adding 40 parts and 45 parts of corn oil polyol are slightly reduced and the sound insulation properties of the corn oil-based polyurethane materials are improved by adding 50 parts of corn oil-based polyurethane materials, relative to petroleum-based polyurethane materials. The overall performance of the polyurethane can be achieved on the premise of not sacrificing the sound insulation performance, and the environment-friendly polyurethane is prepared.
As can be seen from FIG. 5, the comparative reference example curve PU-P0It can be found that: the sound insulation amount in the frequency bands of 225-315 Hz and 1000-6300 Hz is improved by adding 40 parts of corn oil polyalcohol; adding 45 ofThe sound insulation quantity of the corn oil polyol in the frequency bands of 200-315 Hz, 1250-2000 Hz and 4000-6300 Hz is improved; the sound insulation amount in the frequency bands of 160-250 Hz and 800-6300 Hz is improved by adding 50 parts of corn oil polyalcohol. In general, the sound insulation performance of the examples is better than that of the reference examples in most frequency bands, and further, the overall performance of the corn oil-based polyurethane prepared by the method is better than that of the petroleum-based polyurethane in meeting the requirement of the acoustic packaging performance of automobiles.
The invention designs and develops a corn oil-based polyurethane porous material, and the corn oil polyol is used for replacing petroleum-based polyol to prepare the polyurethane porous material, so that the environmental pollution is reduced, and the low-frequency sound absorption effect and the sound insulation performance are better. The invention provides a preparation method of a corn oil-based polyurethane porous material, which gives the stirring speed in the preparation process of the material, ensures the uniform mixing of the material, gives the temperature value during heat preservation treatment, effectively controls the temperature, ensures the foaming effect, and also ensures the sound absorption performance and the sound insulation performance of the polyurethane material. The preparation method of the corn oil-based polyurethane porous material provided by the invention has a higher preparation success rate through actual measurement.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The corn oil-based polyurethane porous material is characterized by comprising the following materials in parts by weight:
corn oil polyol: 40-50 parts of polyether polyol: 50-60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts of catalyst A1: 0.06-0.1 portion, catalyst A33:1.0 portion, deionized water: 2.5 parts of isocyanate: 33-38 shares;
wherein the hydroxyl value range of the corn oil polyalcohol is 190-210 mgKOH/g.
2. The porous corn oil-based polyurethane material as claimed in claim 1, wherein the polyether polyol is GP-3630.
3. The porous corn oil-based polyurethane material of claim 1, wherein the isocyanate is polymeric MDI.
4. The preparation method of the corn oil-based polyurethane porous material is characterized by comprising the following steps of:
step one, weighing the following raw materials in parts by weight:
corn oil polyol: 40-50 parts of polyether polyol: 50-60 parts of silicone oil: 0.6 part, triethanolamine: 2.5 parts of catalyst A1: 0.06-0.1 portion, catalyst A33:1.0 portion, deionized water: 2.5 parts of isocyanate: 33-38 shares;
wherein the hydroxyl value range of the corn oil polyalcohol is 190-210 mgKOH/g;
putting all raw materials except isocyanate into a container, stirring for 1 minute at the rotating speed of 1000-1300 rpm by using a stirring device to prepare a uniform mixture 1, and standing for 3-5 minutes;
adding isocyanate, and stirring uniformly at the rotating speed of 1100-1300 rpm and accompanied with a heating phenomenon to obtain a mixture 2;
pouring the mixture 2 into a mold for free foaming, and then putting the mold into a heat preservation box for curing for 2 hours;
and step five, taking out the porous corn oil-based polyurethane material from the heat preservation box, cooling the porous corn oil-based polyurethane material to room temperature, and removing surface crusts to obtain the porous corn oil-based polyurethane material.
5. The method for preparing a porous corn oil-based polyurethane material as claimed in claim 4, wherein the temperature of the heat-preserving box in the fourth step is 50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541404.8A CN113968952B (en) | 2021-12-16 | 2021-12-16 | Corn oil-based polyurethane porous material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111541404.8A CN113968952B (en) | 2021-12-16 | 2021-12-16 | Corn oil-based polyurethane porous material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113968952A true CN113968952A (en) | 2022-01-25 |
| CN113968952B CN113968952B (en) | 2023-06-30 |
Family
ID=79590634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111541404.8A Active CN113968952B (en) | 2021-12-16 | 2021-12-16 | Corn oil-based polyurethane porous material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113968952B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573392A (en) * | 2006-09-21 | 2009-11-04 | 陶氏环球技术公司 | Viscoelastic foams having high air flow |
| 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 |
| CN106565934A (en) * | 2016-10-31 | 2017-04-19 | 江苏昊晟塑业科技有限公司 | Automobile trim foam material |
| US20170121446A1 (en) * | 2014-06-16 | 2017-05-04 | Nurul 'ain Binti Hanzah | Viscoelastic Foams Having High Dissipation Energy |
| 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 |
| CN110128269A (en) * | 2019-06-12 | 2019-08-16 | 张家港市飞航科技有限公司 | A kind of vegetable oil polyol and its preparation method and application |
| CN110746299A (en) * | 2019-09-30 | 2020-02-04 | 南京工业大学 | High-quality vegetable oil polyol and preparation method and application thereof |
-
2021
- 2021-12-16 CN CN202111541404.8A patent/CN113968952B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573392A (en) * | 2006-09-21 | 2009-11-04 | 陶氏环球技术公司 | Viscoelastic foams having high air flow |
| US20170121446A1 (en) * | 2014-06-16 | 2017-05-04 | Nurul 'ain Binti Hanzah | Viscoelastic Foams Having High Dissipation Energy |
| 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 |
| CN106565934A (en) * | 2016-10-31 | 2017-04-19 | 江苏昊晟塑业科技有限公司 | Automobile trim 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 |
| CN110128269A (en) * | 2019-06-12 | 2019-08-16 | 张家港市飞航科技有限公司 | A kind of vegetable oil polyol and its preparation method and application |
| CN110746299A (en) * | 2019-09-30 | 2020-02-04 | 南京工业大学 | High-quality vegetable oil polyol and preparation method and application thereof |
Non-Patent Citations (2)
| Title |
|---|
| YANGJIE JI ET AL: "Preparation and acoustic properties of a tung oleic acid-based polyurethane foam and its stratified structure", 《POLY ADV TECHNOL》 * |
| 张亚东等: "木材用大豆油基异氰酸酯胶黏剂的制备与表征", 《林业科学》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113968952B (en) | 2023-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107474524B (en) | Polyvinyl alcohol fiber reinforced polyurethane composite acoustic material and preparation method thereof | |
| JP3547758B2 (en) | EPDM composition and method for producing the same | |
| CN106751889A (en) | A kind of high temperature resistance and high strength rubber composition and preparation method thereof | |
| CN107312150B (en) | Polyurethane composite acoustic material and preparation method thereof | |
| KR101060138B1 (en) | Emulsion composition for silicone rubber sponge, method for preparing same, and method for preparing silicone rubber sponge | |
| TWI230651B (en) | Foam body, method for production thereof and reflecting plate | |
| EP0802944A1 (en) | Surfactants for incorporating silica aerogel in polyurethane foams | |
| CN110117352B (en) | Palm oil-based polyurethane porous material and preparation method thereof | |
| CN104479092A (en) | Low-density all-water open-cell hard polyurethane foam and preparation method thereof | |
| JPH0561298B2 (en) | ||
| CN113968952B (en) | Corn oil-based polyurethane porous material and preparation method thereof | |
| CN109825089A (en) | A kind of heat conductive silica gel material and the preparation method and application thereof | |
| CN113462166A (en) | Organic silicon foamed sheet for electronic products and preparation method thereof | |
| Kim et al. | Glass fiber and silica reinforced rigid polyurethane foams. | |
| JPH064716B2 (en) | Foamable silicone composition, silicone sponge and silicone sponge roll | |
| CN107513267B (en) | Ethylene propylene diene monomer rubber polyurethane composite acoustic packaging material and preparation method thereof | |
| CN111454427A (en) | Full-water foaming biomass-based rigid polyurethane foam and preparation method thereof | |
| CN109337062B (en) | Preparation method of polyether polyol for low-density high-bearing sponge | |
| CN112457463A (en) | Low-pollution polyurethane foam sound absorption material and preparation method thereof | |
| CN115160735A (en) | Soybean oil epoxy resin porous acoustic material and preparation method thereof | |
| CN110128617B (en) | Polyurethane sound-absorbing material based on two vegetable oil bases and preparation method thereof | |
| JP2019099660A (en) | Manufacturing method of silicone rubber sponge | |
| CN103881045B (en) | A kind of method of being prepared organic high molecular foam material by waste oil | |
| CN115558076B (en) | Castor oil polyurethane material containing graphene oxide modified fibers and preparation method thereof | |
| CN110615883A (en) | Graphene-containing sound absorption and insulation material and preparation method and application 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 |