CN114181363B - High-strength wood-like combined polyether, polyurethane foam and raw material composition and preparation method thereof - Google Patents
High-strength wood-like combined polyether, polyurethane foam and raw material composition and preparation method thereof Download PDFInfo
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- CN114181363B CN114181363B CN202111534882.6A CN202111534882A CN114181363B CN 114181363 B CN114181363 B CN 114181363B CN 202111534882 A CN202111534882 A CN 202111534882A CN 114181363 B CN114181363 B CN 114181363B
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- polyurethane foam
- polyether
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- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 50
- 229920000570 polyether Polymers 0.000 title claims abstract description 50
- 229920005830 Polyurethane Foam Polymers 0.000 title claims abstract description 33
- 239000011496 polyurethane foam Substances 0.000 title claims abstract description 33
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 239000002994 raw material Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 229920005862 polyol Polymers 0.000 claims abstract description 27
- 150000003077 polyols Chemical class 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 15
- 239000003054 catalyst Substances 0.000 claims abstract description 13
- 239000003381 stabilizer Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006260 foam Substances 0.000 claims abstract description 8
- 239000012948 isocyanate Substances 0.000 claims abstract description 8
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 8
- 238000005187 foaming Methods 0.000 claims abstract description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003063 flame retardant Substances 0.000 claims abstract description 6
- 239000011324 bead Substances 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 13
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 6
- 229920002323 Silicone foam Polymers 0.000 claims description 4
- 239000013514 silicone foam Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- DQWPFSLDHJDLRL-UHFFFAOYSA-N triethyl phosphate Chemical group CCOP(=O)(OCC)OCC DQWPFSLDHJDLRL-UHFFFAOYSA-N 0.000 claims description 2
- 125000003277 amino group Chemical group 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 abstract description 15
- 239000002023 wood Substances 0.000 abstract description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 6
- 229920002635 polyurethane Polymers 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000012970 tertiary amine catalyst Substances 0.000 description 2
- HHDUMDVQUCBCEY-UHFFFAOYSA-N 4-[10,15,20-tris(4-carboxyphenyl)-21,23-dihydroporphyrin-5-yl]benzoic acid Chemical compound OC(=O)c1ccc(cc1)-c1c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc([nH]2)c(-c2ccc(cc2)C(O)=O)c2ccc(n2)c(-c2ccc(cc2)C(O)=O)c2ccc1[nH]2 HHDUMDVQUCBCEY-UHFFFAOYSA-N 0.000 description 1
- 241000565391 Fraxinus mandshurica Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 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
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- -1 polymethylene Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- KVMPUXDNESXNOH-UHFFFAOYSA-N tris(1-chloropropan-2-yl) phosphate Chemical group ClCC(C)OP(=O)(OC(C)CCl)OC(C)CCl KVMPUXDNESXNOH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- 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 polyurethane, and particularly relates to high-strength wood-like combined polyether, polyurethane foam, a raw material composition thereof and a preparation method thereof. The high-strength wood-like combined polyether comprises the following raw materials: polyether polyol A with a hydroxyl value of 425+/-15 mgKOH/g, polyether polyol B with a hydroxyl value of 430+/-30 mgKOH/g, polyether polyol C with a hydroxyl value of 245+/-10 mgKOH/g, foam stabilizer, catalyst, water, glass beads and flame retardant; and mixing and foaming the combined polyether and isocyanate to obtain polyurethane foam. The invention obviously improves the compressive strength on the premise of ensuring the surface hardness of the original imitation wood product, and simultaneously has the advantages that the density can be adjusted at any time through water quantity control, and the like.
Description
Technical Field
The invention belongs to the technical field of polyurethane, and particularly relates to high-strength wood-like combined polyether, polyurethane foam, a raw material composition thereof and a preparation method thereof.
Background
With the development of the home decoration industry, in view of the defects of increasing price of solid wood furniture, slow wood regeneration period and the like, the PU material can be manufactured into furniture with various wood grains, such as fraxinus mandshurica, oak and the like, and the texture and texture of the PU wood-like furniture are very similar to those of wood, and even have the characteristics superior to those of solid wood, such as carving, moisture resistance and difficult cracking and deformation. The PU wood-like furniture accessory products with various shapes, sizes, patterns and colors can be produced. Custom-made products can also be manufactured according to the requirements of customers,
the PU material also has the advantages of green and environment protection: no radiation and no volatilization. No gas harmful to human body is generated after pyrolysis. Easy to process: the material is even, can saw, can dig, can file, installs almost no waste material, and is economical environmental protection. Good colorability: various colors of water-based paint and oil-based paint can be smeared on the surface, and the maintenance time is long after coloring. High heat insulation, is an excellent heat insulation product and does not generate a cold-hot bridge. The PU wood-like material has excellent flame retardant property compared with a solid wood product;
but the strength of the same PU material is far lower than the compressive strength of wood under the condition of the same density as that of solid wood furniture, in order to improve the compressive strength of PU imitation wood in actual production, manufacturers generally improve the compressive strength of the product by improving the density of the imitation wood.
Disclosure of Invention
The invention aims to solve the technical problems that: the high-strength wood-like combined polyether, polyurethane foam, the raw material composition and the preparation method thereof overcome the problem that the strength of the common PU wood-like material in the prior art is low, and have the advantages that the compressive strength is obviously improved on the premise of ensuring the surface hardness of the original wood-like material, the density can be adjusted at any time through water quantity control, and the like.
One of the technical schemes of the invention is as follows:
the high-strength wood-like combined polyether comprises the following raw materials in parts by weight:
the polyether polyol A has a viscosity of 32000+/-4000 mPas at 25 ℃ and a hydroxyl value of 425+/-15 mgKOH/g.
The polyether polyol B has a viscosity of 2000+ -500 mPas at 25 ℃ and a hydroxyl value of 430+ -30 mgKOH/g.
The polyether polyol C has a viscosity of 260+ -100 mPas at 25 ℃ and a hydroxyl value of 245+ -10 mgKOH/g.
The viscosities of the polyether polyol a, the polyether polyol B, the polyether polyol C may each independently be conventional in the art, such as dynamic viscosity. The dynamic viscosity is typically measured using a rotational viscometer.
Preferably, the polyether polyol A is a polyether polyol with the brand NJ-8243 produced by Sangning New materials Co., ltd, the moisture content of which is generally below 0.1%, and the percentage is the percentage of the mass of water to the total mass of the polyether polyol A.
Preferably, the polyether polyol B is a polyether polyol with the brand NJ-4110G produced by Sanguinea new materials Co., ltd, the moisture content of which is generally below 0.1%, and the percentage is the percentage of the mass of water to the total mass of the polyether polyol B.
Preferably, the polyether polyol C is a polyether polyol with the brand NJ-307 produced by Sanguinea new materials Co., ltd, and the moisture content is generally below 0.1%, and the percentage is the percentage of the mass of water to the total mass of the polyether polyol C.
The foam stabilizer may be a foam stabilizer conventional in the art, preferably a silicone-based foam stabilizer. Preferably, the silicone foam stabilizer is a silicone foam stabilizer with the brand name of M-8805 produced by Nanjing Maillard New Material Co.
The catalyst may be a catalyst conventional in the art, preferably an amine catalyst and/or an organometallic catalyst.
Preferably, the amine catalyst is a tertiary amine catalyst. Preferably, the tertiary amine catalyst is a composite catalyst of PolyCAT 46 and TMR-31. The composite catalyst is the mixture of POLYCAT 46 and TMR-31. Preferably, in the composite catalyst, the mass ratio of the POLYCAT 46 to the TMR-31 is 1 (1-1.5).
Preferably, the water is deionized water.
The flame retardant is preferably triethyl phosphate.
The polyether composition of the present invention may be prepared according to a conventional preparation method in the art, for example, by uniformly mixing the components of the raw material composition of the polyether composition. Preferably, the mixing is performed in a mixing vessel with a safety device. Preferably, the mixing container is a mixing kettle. Preferably, the mixing is performed in a stainless steel vessel. Preferably, the mixing is performed under stirring. Preferably, the mixing time is from 0.5 to 1 hour, for example 0.75 hour.
The second technical scheme of the invention is as follows:
the invention also provides a raw material composition of the polyurethane foam, which comprises a component A and a component B, wherein the component A is the combined polyether, and the component B is isocyanate; the mass ratio of the component A to the component B is 1:1.0-1:1.1.
Preferably, the mass ratio of the component A to the component B is 1:1.0-1:1.1.
Preferably, the isocyanate is polymeric diphenylmethane diisocyanate (polymeric MDI for short). The polymeric diphenylmethane diisocyanate refers to a mixture of pure diphenylmethane diisocyanate and polyphenyl polymethylene polyisocyanate. Preferably, the content of the polymerized diphenylmethane diisocyanate in the product of the polymerized diphenylmethane diisocyanate is 51.3 percent, and the percentage is mass percent.
Preferably, the polymeric MDI is a type PM200 polymeric MDI manufactured by plummet Wanhua.
The third technical scheme of the invention:
the invention also provides a preparation method of the polyurethane foam, which comprises the following steps: and mixing the component A and the component B, and foaming to obtain the polyurethane foam.
The conditions of the preparation method of the polyurethane foam may be various conventional conditions in the art.
Preferably, the apparatus for foaming is a low pressure casting machine or an electric stirrer.
Preferably, the foaming temperature is 20-25 ℃, e.g. 22 ℃.
The polyurethane foam can be used as PU wood-like furniture material, and according to the common knowledge in the field, the A component and the B component are not mixed before use, are mixed and used immediately, and are injected into a mould for foaming.
The technical scheme of the invention is as follows:
the invention also provides a polyurethane foam prepared by the preparation method of the polyurethane foam.
Preferably, the polyurethane foam is a rigid polyurethane foam.
The above preferred conditions can be arbitrarily combined on the basis of not deviating from the common knowledge in the art, and thus, each preferred embodiment of the present invention can be obtained.
The reagents and materials used in the present invention are commercially available.
Compared with the prior art, the invention has the following beneficial effects:
(1) Compared with the conventional wood-like PU (polyurethane) product, the polyurethane foam product has the advantages of higher strength under the same density, lower density under the same strength and the like;
(2) Compared with the conventional wood products, the polyurethane foam product has the advantages of environmental protection, corrosion resistance and the like.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention. The experimental methods, in which specific conditions are not noted in the following examples, were selected according to conventional methods and conditions, or according to the commercial specifications.
Polyether polyol NJ-8243, available from New materials Inc. of sentence.
Polyether polyol NJ-4110G, available from New materials Inc. of Sangyangning.
Polyether polyol NJ-307, available from Tongning New Material Co.
Silicone foam stabilizer AK-8805, available from nanjing mei new materials limited.
The glass beads are S60 hollow glass beads of the model number of 3M company in the United states.
The isocyanate is polymeric MDI available from tabacco, model PM200.
The flame retardant is tris (1-chloro-2-propyl) phosphate model TCPP available from Thailand Biotechnology Inc.
Examples 1 to 3
The composition of the polyurethane foam composition raw materials of examples 1 to 3 is shown in Table 1, and the raw materials are used in parts by weight.
TABLE 1
Polyurethane foams were prepared according to the raw material composition of table 1, as follows:
(1) Preparation of the combined polyether:
and uniformly mixing all the raw materials of the combined polyether in a stainless steel mixing kettle for 45min, and uniformly stirring.
(2) Preparation of polyurethane foam:
the PU wood-like foam is prepared by reacting the combined polyether and isocyanate in proportion at 22 ℃ and injecting the mixture into a mould.
Comparative examples 1 to 4
The composition of the polyurethane foam composition raw materials of comparative examples 1 to 4 is shown in Table 2, and the raw materials are used in parts by weight.
TABLE 2
Polyurethane foams were prepared according to the raw material composition of table 2, as follows:
(1) Preparation of the combined polyether:
and uniformly mixing all the raw materials of the combined polyether in a stainless steel mixing kettle for 45min, and uniformly stirring.
(2) Preparation of polyurethane foam:
the PU wood-like foam is prepared by reacting the combined polyether and isocyanate in proportion at 22 ℃ and injecting the mixture into a mould.
Polyurethane foams prepared in examples 1-3 and comparative examples 1-4 were tested and the test results are shown in Table 3 below.
TABLE 3 Table 3
| Detecting items | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 |
| Density kg/m 3 | 800 | 610 | 380 | 810 | 615 | 395 | 800 |
| Compressive strength MPa | 45.3 | 36.1 | 24.2 | 33.2 | 17.2 | 16.7 | 25.3 |
Claims (9)
1. A high-strength wood-like combined polyether is characterized in that: the material comprises the following raw materials in parts by weight:
30-40 parts of polyether polyol A,
30-50 parts of polyether polyol B,
20-30 parts of polyether polyol C,
3-5 parts of foam stabilizer,
1-2 parts of a catalyst,
0.1 to 0.2 part of water,
10-15 parts of glass beads,
20-25 parts of flame retardant;
polyether polyol A is NJ-8243, polyether polyol B is NJ-4110G, and polyether polyol C is NJ-307.
2. The high strength wood-like composite polyether of claim 1, wherein: the foam stabilizer is silicone foam stabilizer.
3. The high strength wood-like composite polyether of claim 1, wherein: the catalyst is an amine catalyst and/or an organic metal catalyst.
4. The high strength wood-like composite polyether of claim 1, wherein: the flame retardant is triethyl phosphate.
5. A raw material composition for a polyurethane foam composed of a combination polyether as claimed in any one of claims 1 to 4, characterized in that: the polyurethane foam comprises a component A and a component B, wherein the component A is the combined polyether, and the component B is isocyanate; the mass ratio of the component A to the component B is 1 (1.0-1.1).
6. The raw material composition for polyurethane foam according to claim 5, wherein: the isocyanate is polymeric diphenylmethane diisocyanate.
7. A polyurethane foam prepared from the polyurethane foam raw material composition according to claim 5, wherein: is a rigid polyurethane foam.
8. A process for preparing a polyurethane foam as claimed in claim 7, wherein: and mixing the component A and the component B for foaming to prepare the polyurethane foam.
9. The method for producing a polyurethane foam according to claim 8, wherein: the foaming temperature is 20-25 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111534882.6A CN114181363B (en) | 2021-12-15 | 2021-12-15 | High-strength wood-like combined polyether, polyurethane foam and raw material composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111534882.6A CN114181363B (en) | 2021-12-15 | 2021-12-15 | High-strength wood-like combined polyether, polyurethane foam and raw material composition and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114181363A CN114181363A (en) | 2022-03-15 |
| CN114181363B true CN114181363B (en) | 2023-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111534882.6A Active CN114181363B (en) | 2021-12-15 | 2021-12-15 | High-strength wood-like combined polyether, polyurethane foam and raw material composition and preparation method thereof |
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| CN (1) | CN114181363B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755908A (en) * | 2014-01-07 | 2014-04-30 | 合肥杰事杰新材料股份有限公司 | High compression-resistant flame retardant rigid polyurethane foam plastic and preparation method thereof |
| CN106632953A (en) * | 2016-12-28 | 2017-05-10 | 上海东大聚氨酯有限公司 | Premixed polyether polyols and raw material composite for polyurethane imitated wood and using method of raw material composite |
| CN108017772A (en) * | 2017-12-13 | 2018-05-11 | 上海东大聚氨酯有限公司 | Polyurethane imitation woodwork combined polyether, polyurethane raw material composition, polyurethane foam and preparation method thereof |
| CN110437412A (en) * | 2019-08-09 | 2019-11-12 | 山西海诺科技股份有限公司 | A kind of polyurethane wood-imitation material and preparation method thereof |
-
2021
- 2021-12-15 CN CN202111534882.6A patent/CN114181363B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755908A (en) * | 2014-01-07 | 2014-04-30 | 合肥杰事杰新材料股份有限公司 | High compression-resistant flame retardant rigid polyurethane foam plastic and preparation method thereof |
| CN106632953A (en) * | 2016-12-28 | 2017-05-10 | 上海东大聚氨酯有限公司 | Premixed polyether polyols and raw material composite for polyurethane imitated wood and using method of raw material composite |
| CN108017772A (en) * | 2017-12-13 | 2018-05-11 | 上海东大聚氨酯有限公司 | Polyurethane imitation woodwork combined polyether, polyurethane raw material composition, polyurethane foam and preparation method thereof |
| CN110437412A (en) * | 2019-08-09 | 2019-11-12 | 山西海诺科技股份有限公司 | A kind of polyurethane wood-imitation material and preparation method thereof |
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| CN114181363A (en) | 2022-03-15 |
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