CN111533872A - Low-odor and low-VOC polyurethane foam material for automobile seats and preparation method thereof - Google Patents
Low-odor and low-VOC polyurethane foam material for automobile seats and preparation method thereof Download PDFInfo
- Publication number
- CN111533872A CN111533872A CN202010528119.1A CN202010528119A CN111533872A CN 111533872 A CN111533872 A CN 111533872A CN 202010528119 A CN202010528119 A CN 202010528119A CN 111533872 A CN111533872 A CN 111533872A
- Authority
- CN
- China
- Prior art keywords
- parts
- low
- activated carbon
- carbon particles
- polyurethane foam
- 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.)
- Pending
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
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- 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
- C08J9/12—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 physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- 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
- C08J9/12—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 physical blowing agent
- C08J9/14—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 physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
-
- 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
- C08J9/12—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 physical blowing agent
- C08J9/14—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 physical blowing agent organic
- C08J9/143—Halogen containing compounds
- C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
- C08J9/145—Halogen containing compounds containing carbon, halogen and hydrogen only only chlorine as halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- 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
- 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
- C08J2203/06—CO2, N2 or noble gases
-
- 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
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J2203/142—Halogenated saturated hydrocarbons, e.g. H3C-CF3
-
- 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
- C08J2203/18—Binary blends of expanding agents
- C08J2203/182—Binary blends of expanding agents of physical blowing agents, e.g. acetone and butane
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention provides a low-odor and low-VOC polyurethane foam material for an automobile seat, which comprises a material A, a material B and a material C; the material A comprises 60-130 parts by weight of isocyanate, the material B comprises 60-120 parts by weight of polyether polyol, 3-5 parts by weight of foaming agent, 0.5-1.5 parts by weight of catalyst and 5-15 parts by weight of auxiliary material, and the material C comprises 5-20 parts by weight of modified activated carbon particles, wherein the particle size range of the modified activated carbon particles is 10-200 microns. The modified micron-sized activated carbon particles in the low-odor and low-VOC polyurethane foam material for the automobile seat can be uniformly distributed in the seat foam, so that micromolecular volatile matters emitted from the seat foam can be effectively adsorbed, the micromolecular volatile matters emitted from the seat to a passenger cabin can be reduced, and the aim of improving the quality of air in an automobile for a long time is fulfilled.
Description
Technical Field
The invention belongs to the technical field of passenger car environmental protection, and particularly relates to a low-odor and low-VOC polyurethane foam material for an automobile seat and a preparation method thereof.
Background
The problem of air quality in the vehicle is a hot spot which is focused by the users of the vehicle in recent years. After the official release of GB 18352.6-2016 (limit for emission of pollutants for light vehicles) and the measurement method (sixth stage in China), it was clearly required that vehicles all meet the requirements of GB/T27360 (guidance for evaluation of air quality in passenger vehicles). All automobile manufacturers at home and abroad begin to strictly manage the in-vehicle air control quality of produced vehicles on one hand, and continuously increase research and development efforts on the other hand to explore technologies for improving the in-vehicle environmental protection. The seat is a part with the largest specific surface area in an automobile passenger compartment, the seat foam is mainly generated by chemically reacting two main chemical substances, namely isocyanate and polyol according to a certain proportion, but a plurality of small molecular substances which do not participate in the reaction are continuously diffused into the automobile environment through surface open pores of the foam. The odor and VOC test indicates that the unpleasant odor in the automobile is mainly from the foam amine odor emitted by the foam, and the odor is very pungent. The substances with excessive VOC are mainly formaldehyde and acetaldehyde which are also byproducts of the polyurethane foam reaction. After the continuous exposure to sunlight, the air in the automobile is filled with the harmful substances, which can harm the health of automobile users.
However, at present, except that a layer of formaldehyde-removing agent is sprayed on the surface of the foam before leaving a factory, no effective means is provided for reducing VOC emission of the foam, and harmful substances can be emitted outwards continuously from the seat foam for a long time. Or a carbon bag purchased by a whole vehicle manufacturer or a consumer is placed in the vehicle to absorb VOC. However, this approach undoubtedly increases the cost of purchasing the car, and the charcoal bag occupies a certain space in the car.
Chinese patent application CN106496499A discloses a preparation method of a low-odor environment-friendly polyurethane soft foam material, which mainly reduces odor and VOC of foam by adding gas traps, wherein the gas traps include a nano-scale porous physical adsorption material (such as activated carbon, white carbon black, activated silica gel or alumina) and a chemical adsorbent (with polyamine group).
The method disclosed in the above patent, however, has some drawbacks. In the method, the chemical adsorbent with polyamine is adopted, and the amino groups on the molecules of the chemical adsorbent are used for neutralizing harmful substances with strong odor, such as formaldehyde, acetaldehyde and the like, emitted in the automobile foam material. The amine group contained in the chemical adsorbent is a substance with strong odor, and the following is shown: the amine group reacts with a substance having an aldehyde group, and the resulting imine is a substance having a strong odor. Therefore, when the aldehyde removing agent is introduced into the low-odor environment-friendly polyurethane flexible foam material, the effect of removing odor cannot be achieved, and the odor of the material can be increased.
In addition, the nano-scale material is used as a physical adsorption material in the patent, on one hand, the nano-scale material is expensive and is not beneficial to large-scale production; on the other hand, nanomaterials reach a size of 10-9The nanometer level has the characteristics of large specific surface area and large surface energy, and the nanometer effect is derived from the characteristics. Because the surface energy of the nano particles is huge, the nano particles are always in an unstable energy state and are easy to agglomerate, the nano particles cannot be uniformly dispersed under the condition of industrial large-scale production by the current technical means, the nano material is also released for many years, the nano particles which are uniformly dispersed can be obtained only under the condition of a laboratory, and products which really apply the nano technology in the market are rare. The nano material is adopted, and actually, the nano effect is utilized, and the nano material is uniformly dispersed into the whole foam system by using relatively less amount of the catching agent to play a role in adsorption. However, after the nano material is agglomerated, the gas trapping agent with the nano scale can only have a certain adsorption effect on the contact area with the foam, and a large number of nano particles are wrapped in the agglomerate, so that the adsorption effect is very limited.
Disclosure of Invention
Aiming at the problems that the chemical adsorbent adopted in the prior art cannot achieve the odor removal effect, but increases the odor of the material, and the adsorption effect is poor due to the agglomeration of the nano material, the invention aims to provide the low-odor and low-VOC polyurethane foam material for the automobile seat and the preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme: a low-odor and low-VOC polyurethane foam material for automobile seats comprises a material A, a material B and a material C; the material A comprises 60-130 parts by weight of isocyanate, the material B comprises 60-120 parts by weight of polyether polyol, 3-5 parts by weight of foaming agent, 0.5-1.5 parts by weight of catalyst and 5-15 parts by weight of auxiliary material, and the material C comprises 5-20 parts by weight of modified activated carbon particles, wherein the particle size range of the modified activated carbon particles is 10-200 microns.
Further, the material A is 90-120 parts of isocyanate, the material B comprises 90-110 parts of polyether polyol, 3-4 parts of foaming agent, 0.8-1.2 parts of catalyst and 8-12 parts of auxiliary material, and the material C is 8-12 parts of modified activated carbon particles.
Further, the material A is 110 parts of isocyanate, the material B comprises 100 parts of polyether polyol, 3 parts of foaming agent, 0.9 part of catalyst and 13 parts of auxiliary material, and the material C is 10 parts of modified activated carbon particles.
Further, the particle size range of the modified activated carbon particles is 100-150 mu m.
Further, the foaming agent is one or more of dichloromethane, liquid carbon dioxide, HCFC-14LB and HCFC-22. Dichloromethane is preferred.
Further, the catalyst is one or more of dimethylamino ethoxyethanol, tetramethyl dipropylenetriamine and modified dimethyl cyclohexylamine. Preferably, the mixed catalyst of the dimethylaminoethoxyethanol and the modified dimethylcyclohexylamine has the weight ratio of 1: 5.
Further, the auxiliary material is silicone foam, diethanolamine, trihydroxymethyl propane or triethanolamine. Trihydroxymethyl propane is preferred for reducing amine-type malodorous substances.
The low-odor and low-VOC polyurethane foam material for the automobile seat is prepared by the following preparation method:
(1) 2-3 of: 1, putting activated carbon particles and a silane coupling agent into purified water at the temperature of 50-60 ℃ for stirring, adding a proper amount of phosphoric acid to ensure that the pH value is 6, stirring for 3-5h, and drying to obtain modified activated carbon particles;
(2) feeding the modified activated carbon particles into a reaction kettle filled with a material A at a constant speed through a feeding pipe, and fully stirring for 30-60 min to obtain a mixed solution A;
(3) adding the material B into the mixed solution A obtained in the step (2), and stirring and fully mixing to obtain a mixed solution B;
(4) and injecting the mixed solution B into a mold with the temperature of 120-160 ℃ for reaction to obtain the polyurethane foam material.
According to the invention, the silane coupling agent is adopted to modify the activated carbon particles, so that hydroxyl on the surface of the modified activated carbon particles reacts with hydroxyl functional groups of the silane coupling agent, and thus, the vinyl part in the silane coupling agent can enhance the dispersibility of the activated carbon particles in the material A.
Further, the silane coupling agent is vinyltrimethoxysilane, vinyltriethoxysilane or vinyltris (beta-methoxyethoxy) silane.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, modified activated carbon particles with the particle size of 10-200 μm are added into the A material isocyanate solution, the modified activated carbon particles can be uniformly dispersed in the whole polyurethane foam material, and the activated carbon has the function of adsorbing micromolecular volatile matters and peculiar smell and can be uniformly distributed in the seat foam to effectively adsorb micromolecular volatile matters emitted from the seat foam, so that the micromolecular volatile matters emitted from the seat to a passenger cabin can be reduced, and the aim of improving the air quality in the vehicle for a long time is achieved.
Drawings
FIG. 1 is an SEM image of a material A isocyanate solution with nanoscale modified activated carbon particles added;
FIG. 2 is an SEM image of a material A isocyanate solution with micron-sized modified activated carbon particles added.
Detailed Description
The process of the present invention will be described in detail with reference to specific examples. The HCFC-14LB and HCFC-22 in the invention belong to HCFCs, and are collectively called as hydrofluorocarbons.
Firstly, preparing low-odor and low-VOC polyurethane foam material for automobile seats
Example 1
A low-odor and low-VOC polyurethane foam material for automobile seats comprises a material A, a material B and a material C; the modified activated carbon material comprises, by weight, 60 parts of isocyanate, 60 parts of polyether polyol, 3 parts of dichloromethane, 0.5 part of dimethylaminoethoxyethanol, 5 parts of silicone foam and 5 parts of modified activated carbon particles, wherein the particle size of the modified activated carbon particles is 10-50 microns.
The preparation method of the low-odor and low-VOC polyurethane foam material for the automobile seat comprises the following steps:
(1) according to the weight ratio of 2: 1, putting activated carbon particles and a silane coupling agent into purified water at the temperature of 50 ℃ for stirring, adding a proper amount of phosphoric acid to ensure that the pH value is 6, stirring for 3 hours, and drying to obtain modified activated carbon particles;
(2) feeding the modified activated carbon particles into a reaction kettle filled with a material A at a constant speed through a feeding pipe, and fully stirring for 30min to obtain a mixed solution A;
(3) adding the material B into the mixed solution A obtained in the step (2), and stirring and fully mixing to obtain a mixed solution B;
(4) and then injecting the mixed solution B into a mold with the temperature of 120 ℃ for reaction to obtain the polyurethane foam material.
Example 2
A low-odor and low-VOC polyurethane foam material for automobile seats comprises a material A, a material B and a material C; the modified activated carbon comprises, by weight, 130 parts of isocyanate, 120 parts of polyether polyol, 5 parts of liquid carbon dioxide, 1.5 parts of tetramethyl dipropylene triamine, 15 parts of vinyl triethoxysilane and 20 parts of modified activated carbon particles, wherein the particle size of the modified activated carbon particles is 50-100 micrometers.
The preparation method of the low-odor and low-VOC polyurethane foam material for the automobile seat comprises the following steps:
(1) according to the weight ratio of 3: 1, putting activated carbon particles and a silane coupling agent into purified water at the temperature of 60 ℃ for stirring, adding a proper amount of phosphoric acid to ensure that the pH value is 6, stirring for 5 hours, and drying to obtain modified activated carbon particles;
(2) feeding the modified activated carbon particles into a reaction kettle filled with a material A at a constant speed through a feeding pipe, and fully stirring for 60min to obtain a mixed solution A;
(3) adding the material B into the mixed solution A obtained in the step (2), and stirring and fully mixing to obtain a mixed solution B;
(4) and then injecting the mixed solution B into a mold with the temperature of 160 ℃ for reaction to obtain the polyurethane foam material.
Example 3
A low-odor and low-VOC polyurethane foam material for automobile seats comprises a material A, a material B and a material C; the modified activated carbon comprises, by weight, 110 parts of isocyanate as a material A, 100 parts of polyether polyol as a material B, 3 parts of dichloromethane, 0.15 part of dimethylaminoethoxyethanol, 0.75 part of modified dimethylcyclohexylamine and 13 parts of trihydroxymethylpropane, and 10 parts of modified activated carbon particles as a material C, wherein the particle size range of the modified activated carbon particles is 100-150 micrometers.
(1) According to the weight ratio of 3: 1, putting activated carbon particles and a silane coupling agent into purified water at the temperature of 60 ℃ for stirring, adding a proper amount of phosphoric acid to ensure that the pH value is 6, stirring for 4 hours, and drying to obtain modified activated carbon particles;
(2) feeding the modified activated carbon particles into a reaction kettle filled with a material A at a constant speed through a feeding pipe, and fully stirring for 30min to obtain a mixed solution A;
(3) adding the material B into the mixed solution A obtained in the step (2), and stirring and fully mixing to obtain a mixed solution B;
(4) and then injecting the mixed solution B into a mold with the temperature of 160 ℃ for reaction to obtain the polyurethane foam material.
Example 4
A low-odor and low-VOC polyurethane foam material for automobile seats comprises a material A, a material B and a material C; the modified activated carbon comprises, by weight, 90 parts of isocyanate, 90 parts of polyether polyol, 90 parts of methylene dichloride, 1.5 parts of HCFC-14LB, 1.2 parts of modified dimethylcyclohexylamine and 8 parts of trihydroxy methyl propane, and 12 parts of modified activated carbon particles serving as a material C, wherein the particle size range of the modified activated carbon particles is 150-200 mu m.
The preparation method of the low-odor and low-VOC polyurethane foam material for the automobile seat comprises the following steps:
(1) according to the weight ratio of 2.5: 1, putting activated carbon particles and a silane coupling agent into purified water at the temperature of 55 ℃, stirring, adding a proper amount of phosphoric acid to ensure that the pH value is 6, stirring for 4 hours, and drying to obtain modified activated carbon particles;
(2) feeding the modified activated carbon particles into a reaction kettle filled with a material A at a constant speed through a feeding pipe, and fully stirring for 45min to obtain a mixed solution A;
(3) adding the material B into the mixed solution A obtained in the step (2), and stirring and fully mixing to obtain a mixed solution B;
(4) and then injecting the mixed solution B into a mold with the temperature of 140 ℃ for reaction to obtain the polyurethane foam material.
Comparative example 1
The addition amount of the raw materials of the polyurethane foam and the preparation method are the same as those of the embodiment 1-4, except that the particle size of the modified activated carbon particles is 20-40 nm.
Comparative example 2
The raw material addition amount and the preparation method of the polyurethane foam are the same as those in examples 1 to 4, except that the particle size of the modified activated carbon particles is 40 to 60 nm.
Comparative example 3
The comparative example is used as a blank comparative example, modified activated carbon particles are not added, and whether the micron-sized modified activated carbon particles can adsorb peculiar smell and VOC of the seat foam on the premise of not influencing the mechanical property of the polyurethane foam is examined.
Second, performance test of low-odor and low-VOC polyurethane foam material for automobile seat
The present inventors have conducted relevant tests on the polyurethane foams prepared in the above examples 1 to 4 and comparative examples 1 to 3, and the specific results are shown in Table 1:
table 1 results of performance testing
As can be seen from the above table, by comparing the tear strength and the elongation at break of the examples 1 to 4 with those of the comparative example 3 (blank control), the test data of the tear strength and the elongation at break of the examples 1 to 4 are substantially equal to those of the comparative example 3, wherein the data of the example 3 is the closest to each other, which shows that the mechanical properties of the polyurethane foam material with the modified activated carbon particle size range of 100 to 150 μm are not reduced; the mechanical properties of comparative examples 1 and 2 were significantly reduced.
Comparing 8 groups of odor test data in the table above, it is known that the odor performance of examples 1-4 is below grade 2.5, and the best odor performance of the polyurethane foam material (example 3) added with micron-sized modified activated carbon particles with the particle size range of 100-150 μm is grade 2.0; as can be seen from the data of comparative examples 1-3, the addition of the nano-sized modified activated carbon particles is not only expensive, but also has no substantial difference from the odor data of the blank control group without the addition of the gas capturing agent.
As can be seen from the above table, the TVOC of examples 1-4 is below 2000, the TVOC of example 3 is at the lowest 103, demonstrating that the volatile material content of the polyurethane foam material (example 3) with micron-sized particles in the 100-150 μm size range is the lowest; as can be seen from the data of comparative examples 1-3, the addition of the nano-sized modified activated carbon particles is not only expensive, but also substantially indistinguishable from the TVOC data of the blank control without the addition of the gas trapping agent.
In summary, it can be known from the above analysis that the control group added with the modified nano-scale particles has no difference from the blank control group in absorbing the odor and the harmful substances, that is, the addition of the modified nano-scale particles cannot play a role in reducing the odor and VOC of the polyurethane foam, but rather affects the mechanical properties of the polyurethane foam material; the mechanical property of the polyurethane foam material added with the micron-sized modified activated carbon particles can be basically equal to that of a control group 3 without the activated carbon, the peculiar smell and VOC can be obviously reduced, and the effect of the modified activated carbon particles with the particle size range of 100-150 mu m is the best.
Under the same other preparation conditions, the invention also carries out SEM test on the A material isocyanate solution added with the nano-scale and micron-scale modified activated carbon particles respectively, and the result is shown in figure 1 and figure 2.
Fig. 1 is an SEM of the material a isocyanate solution to which the nano-modified activated carbon particles are added, and fig. 2 is an SEM of the material a isocyanate solution to which the micro-modified activated carbon particles are added, and it can be seen from the drawings that the material a isocyanate solution to which the nano-modified activated carbon particles are added is seriously agglomerated, and the material a isocyanate solution to which the micro-modified activated carbon particles are added is more uniformly dispersed. This also verifies the conclusion in table 1 above, because the nano-modified activated carbon particles are easy to agglomerate, particles above micron-sized may be formed after the agglomeration, and are not uniformly dispersed in the material a solution, and finally the adsorption performance is reduced, and the mechanical properties of the material are reduced due to the occurrence of blocking continuous phase.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A low-odor and low-VOC polyurethane foam material for automobile seats is characterized by comprising a material A, a material B and a material C; the material A comprises 60-130 parts by weight of isocyanate, the material B comprises 60-120 parts by weight of polyether polyol, 3-5 parts by weight of foaming agent, 0.5-1.5 parts by weight of catalyst and 5-15 parts by weight of auxiliary material, and the material C comprises 5-20 parts by weight of modified activated carbon particles, wherein the particle size range of the modified activated carbon particles is 10-200 microns.
2. The low-odor and low-VOC polyurethane foam material for the automobile seats as claimed in claim 1, wherein the material A is 90-120 parts of isocyanate, the material B comprises 90-110 parts of polyether polyol, 3-4 parts of foaming agent, 0.8-1.2 parts of catalyst and 8-12 parts of auxiliary material, and the material C is 8-12 parts of modified activated carbon particles.
3. The low odor and low VOC polyurethane foam material for the automobile seats as claimed in claim 2, wherein the material A is 110 parts of isocyanate, the material B comprises 100 parts of polyether polyol, 3 parts of foaming agent, 0.9 part of catalyst, 13 parts of auxiliary material, and the material C is 10 parts of modified activated carbon particles.
4. The low odor, low VOC polyurethane foam material for use in automotive seats of claim 1 wherein said modified activated carbon particles have a particle size range of 100 to 150 μm.
5. The low odor, low VOC polyurethane foam for use in automotive seats of claim 1 wherein said blowing agent is one or more of methylene chloride, liquid carbon dioxide, HCFC-14LB and HCFC-22.
6. The low odor, low VOC polyurethane foam for use in automotive seats of claim 1 wherein said catalyst is one or more of dimethylaminoethoxyethanol, tetramethyldipropylenetriamine and modified dimethylcyclohexylamine.
7. The low odor, low VOC polyurethane foam material of claim 1 wherein the adjuvant is silicone foam, diethanolamine, trihydroxymethylpropane, or triethanolamine.
8. A method of making a low odor, low VOC polyurethane foam material for use in automotive seats as claimed in any of claims 1 to 7, comprising the steps of:
(1) 2-3 of: 1, putting activated carbon particles and a silane coupling agent into purified water at the temperature of 50-60 ℃ for stirring, adding a proper amount of phosphoric acid to enable the pH value to be 6, stirring for 3-5 hours, and drying to obtain modified activated carbon particles;
(2) feeding the modified activated carbon particles into a reaction kettle filled with a material A at a constant speed through a feeding pipe, and fully stirring for 30-60 min to obtain a mixed solution A;
(3) adding the material B into the mixed solution A obtained in the step (2), and stirring and fully mixing to obtain a mixed solution B;
(4) and injecting the mixed solution B into a mold with the temperature of 120-160 ℃ for reaction to obtain the polyurethane foam material.
9. The method of claim 8, wherein the silane coupling agent is vinyltrimethoxysilane, vinyltriethoxysilane or vinyltris (β -methoxyethoxy) silane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010528119.1A CN111533872A (en) | 2020-06-11 | 2020-06-11 | Low-odor and low-VOC polyurethane foam material for automobile seats and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010528119.1A CN111533872A (en) | 2020-06-11 | 2020-06-11 | Low-odor and low-VOC polyurethane foam material for automobile seats and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111533872A true CN111533872A (en) | 2020-08-14 |
Family
ID=71972536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010528119.1A Pending CN111533872A (en) | 2020-06-11 | 2020-06-11 | Low-odor and low-VOC polyurethane foam material for automobile seats and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111533872A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322026A (en) * | 2020-10-12 | 2021-02-05 | 万华化学（北京）有限公司 | Polyurethane material and polyurethane foam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0263975A2 (en) * | 1986-09-12 | 1988-04-20 | Neiko Ivanoff Vasileff | Open-cell foamed gypsum absorbents |
| US20070078193A1 (en) * | 2005-08-31 | 2007-04-05 | Gilder Stephen D | Strut-reinforced, reduced VOC polyurethane foam |
| CN105419298A (en) * | 2015-12-18 | 2016-03-23 | 青岛文晟汽车零部件有限公司 | PU board for automobile |
| CN107312156A (en) * | 2017-08-23 | 2017-11-03 | 北京家美科技有限公司 | The degerming polyurethane foam material of mite killing and its preparation technology |
| CN110615983A (en) * | 2019-09-06 | 2019-12-27 | 海宁美景海绵有限公司 | Polyurethane sponge containing activated carbon material and preparation method thereof |
-
2020
- 2020-06-11 CN CN202010528119.1A patent/CN111533872A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0263975A2 (en) * | 1986-09-12 | 1988-04-20 | Neiko Ivanoff Vasileff | Open-cell foamed gypsum absorbents |
| US20070078193A1 (en) * | 2005-08-31 | 2007-04-05 | Gilder Stephen D | Strut-reinforced, reduced VOC polyurethane foam |
| CN105419298A (en) * | 2015-12-18 | 2016-03-23 | 青岛文晟汽车零部件有限公司 | PU board for automobile |
| CN107312156A (en) * | 2017-08-23 | 2017-11-03 | 北京家美科技有限公司 | The degerming polyurethane foam material of mite killing and its preparation technology |
| CN110615983A (en) * | 2019-09-06 | 2019-12-27 | 海宁美景海绵有限公司 | Polyurethane sponge containing activated carbon material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 朱吕民等: "《聚氨酯泡沫塑料》", 31 August 2004, 化学工业出版社 * |
| 贾红兵等: "《高分子材料》", 30 November 2009, 南京大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112322026A (en) * | 2020-10-12 | 2021-02-05 | 万华化学（北京）有限公司 | Polyurethane material and polyurethane foam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110947370B (en) | Preparation method of chitosan-cyclodextrin-based sponge for dye adsorption | |
| CN111533872A (en) | Low-odor and low-VOC polyurethane foam material for automobile seats and preparation method thereof | |
| CN115260663A (en) | Environment-friendly low-odor sealing strip and preparation method thereof | |
| CN105642256A (en) | Hydrophobic resin oil adsorption material and preparation method | |
| CN111801378A (en) | Rubber composition and tire | |
| CN111868160A (en) | Rubber composition for tire and studless tire | |
| CN108822483A (en) | A kind of low VOC composite plastic for automobile interiors and preparation method of containing graphene | |
| CN103980443B (en) | A kind of half covalent method prepares the method for wetting ability bisphenol A molecular engram polymer | |
| JP2005320374A (en) | Rubber composition for tire tread | |
| CN111801380A (en) | Rubber composition and tire | |
| CN112321848B (en) | Room temperature vulcanized silicone rubber emulsion for latex products, silicone rubber sponge and preparation method | |
| CN111621098A (en) | Foaming type plastic track granular material and preparation method thereof | |
| Prapruddivongs et al. | Correlative roles of silica as a blowing aid and a Pb (II) adsorbent for natural rubber composite foams | |
| CN113148977B (en) | Hydrophobic modification method of porous carbon material | |
| JP4499401B2 (en) | Rubber composition for tire | |
| JP4946466B2 (en) | Gas adsorbent | |
| JPH0987433A (en) | Silica for rubber reinforcement and rubber composition | |
| CN111704757A (en) | Preparation method and application of semi-interpenetrating network structure polybutyl acrylate/waste tire rubber powder | |
| CN109371665A (en) | A kind of low VOC smell polyurethane inner decoration facing catalysis silk material and preparation method | |
| CN113174093B (en) | Wet skid resistant tire and preparation method thereof | |
| CN112796093A (en) | Method for preparing super-hydrophobic activated carbon fiber and prepared super-hydrophobic activated carbon fiber | |
| JP2014114381A (en) | Tire rubber composition and pneumatic tire using the same | |
| CN104403380A (en) | Method for improving carbon black coupling efficiency and increasing content of combined rubber in rubber | |
| CN116082960B (en) | Pavement noise reduction coating and preparation method thereof | |
| JP4946255B2 (en) | Gas adsorbent |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200814 |
|
| RJ01 | Rejection of invention patent application after publication |