CN101724255A - Wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof - Google Patents
Wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof Download PDFInfo
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- CN101724255A CN101724255A CN200910232395A CN200910232395A CN101724255A CN 101724255 A CN101724255 A CN 101724255A CN 200910232395 A CN200910232395 A CN 200910232395A CN 200910232395 A CN200910232395 A CN 200910232395A CN 101724255 A CN101724255 A CN 101724255A
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- wood
- wood powder
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- reinforced polyurethane
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- 239000000463 material Substances 0.000 title claims abstract description 66
- 239000002023 wood Substances 0.000 title claims abstract description 65
- 239000000843 powder Substances 0.000 title claims abstract description 44
- 239000004814 polyurethane Substances 0.000 title claims abstract description 26
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 28
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 21
- 229920000570 polyether Polymers 0.000 claims abstract description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 11
- 239000003063 flame retardant Substances 0.000 claims abstract description 9
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 6
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 235000012054 meals Nutrition 0.000 claims description 10
- 239000012757 flame retardant agent Substances 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- PZBFGYYEXUXCOF-UHFFFAOYSA-N TCEP Chemical compound OC(=O)CCP(CCC(O)=O)CCC(O)=O PZBFGYYEXUXCOF-UHFFFAOYSA-N 0.000 claims description 6
- VONWDASPFIQPDY-UHFFFAOYSA-N dimethyl methylphosphonate Chemical compound COP(C)(=O)OC VONWDASPFIQPDY-UHFFFAOYSA-N 0.000 claims description 6
- 238000009775 high-speed stirring Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000012745 toughening agent Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- FRCHKSNAZZFGCA-UHFFFAOYSA-N 1,1-dichloro-1-fluoroethane Chemical group CC(F)(Cl)Cl FRCHKSNAZZFGCA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- -1 polymethylene Polymers 0.000 claims description 3
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 2
- 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 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 2
- 238000009413 insulation Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004040 coloring Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- PGYPOBZJRVSMDS-UHFFFAOYSA-N loperamide hydrochloride Chemical compound Cl.C=1C=CC=CC=1C(C=1C=CC=CC=1)(C(=O)N(C)C)CCN(CC1)CCC1(O)C1=CC=C(Cl)C=C1 PGYPOBZJRVSMDS-UHFFFAOYSA-N 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004604 Blowing Agent Substances 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Dry Formation Of Fiberboard And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a wood powder reinforced polyurethane wood-imitation material for furniture and a production method thereof. The mixture of polyether glycol, foaming agent, catalyst, stabilizing agent and fire retardant serves as a white material, polyisocyanate serves as black material, and wood powder filler with 80-100 meshes serves as the stabilizing agent, wherein, the mass ratio of white material to black material to wood powder is 112:112:7. The production method is as follows: respectively mixing the white material according to ratio to prepare composite polyether; adding wood powder to prepare wood powder/ composite polyether mixture; then, adding the black material to prepare foaming mixture; and after injection molding and curing for 20 minutes, demolding to prepare the wood powder reinforced polyurethane wood-imitation material. The invention has the advantages that the compression strength and the shock resistance of the produced wood-imitation material and products are strengthened, wood texture effect is obvious, and density distribution is improved; the produced wood-imitation material and the product have stable size, small deformation and favorable heat insulation and sound insulation performance and are hard and ageing-resistant; flame retardant property can reach construction B2 grade, the product is environmentally-friendly and has low cost as well as favorable handling characteristics, such as sawing, digging, drilling, nailing, rubbing, sticking, coloring, coating and the like.
Description
Technical field
The present invention relates to be a kind of be matrix with the polyurathamc component raw material, be toughener with the wood meal, make wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof by complete processings such as blend, stirring, foaming, injection molding, slaking, the demouldings.Belong to material and production of articles technical field.
Background technology
In recent years, because world's timber resources is reducing, China's timber a resource shrinkage faster, and on the other hand, along with the raising of people's living standard, human more and more higher to quantity, the specification of quality of wood utilization, and the timber resources that China can provide is very limited, therefore, the disparities between supply and demand of timber resources become increasingly conspicuous.At present, the main path of solution timber imbalance between supply and demand has three: 1) increase importation of timber; 2) greatly develop artificial fastgrowing trees; 3) seek equivalent material.At first, increase importation of timber, the assortment of the importation of timber of China and country are all increasing in recent years, though imported timber has solved China's timber shortage problem to a great extent, but worldwide shortage along with timber resources, going from bad to worse and the enhancing of people's environmental protection meaning of environment, most countries all exports timber and has taked certain policy restriction, if and China's external timber resources of dependence on import always, will the long term growth of China's wood industry be had a negative impact, this shows that imported timber neither solve the basic way of the long-term timber shortage of China.Secondly, greatly develop artificial fastgrowing trees, than higher, greatly develop needs to use a large amount of arable lands to fastgrowing trees to the requirement of growing environment, and China was exactly a large agricultural country of having a large population in a small area originally, and this has been subjected to restriction to a certain degree with regard to the development that makes artificial fastgrowing trees.To sum up, with regard to present present situation, seeking and study the timber equivalent material imbalance between supply and demand of alleviating China's timber resources is had more realistic meaning, is one of effective way that solves the timber imbalance between supply and demand to mould Dai Mu.
Summary of the invention
What the present invention proposed is a kind of wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof, its purpose is intended to overcome some shortcomings that have traditional pure polyurethane imitation wood material now, proposition is a matrix with the polyurathamc component raw material, with the wood meal is toughener, by adding wood meal, with density distribution, mechanical property, woodiness touch effect, the flame retardant properties of foam performance, index of Response and the polyurethane imitation wood material of improving urethane, can realize the wood powder comprehensive utilization simultaneously, reduce urethane raw consumption, the conservation cost, expand its application approach.
Technical solution of the present invention: wood powder reinforced polyurethane wood-imitation material for furniture, it is characterized in that component comprises that the mixture with polyether glycol, whipping agent, catalyzer, stablizer etc. is white material, be black material with polyisocyanates, with 80～100 order wood meals is toughener, with the composite flame-retardant agent is fire retardant, and the constituent mass ratio of white material, black material, wood powder, fire retardant is 112: 112: 7: 11.
Described white material component comprises that polyether glycol is the mixture of 4110II, 403,330N and 210, and whipping agent is HCFC-141b, and catalyzer is the mixture of PC-5, PC-8 and A-33, and suds-stabilizing agent is L-6950.In white material, polyether glycol account for gross weight 90%, whipping agent account for gross weight 7.2%, catalyzer account for gross weight 1%, the stabilizer comprises gross weight 1.8%.
Described black material component is polyphenyl polymethylene polyisocyanates (PAPI).
Described enhancer component is 80～100 order wood meals, by sanding wood powder or sawdust, wood shavings, wood chip etc. after crushed, and by sieving, be dried to 80～100 purpose wood powders.
Described composite flame-retardant agent component is the mixture of TCEP and DMMP, and the mass ratio of TCEP and DMMP is 3: 1.
The preparation method of wood powder reinforced polyurethane wood-imitation material for furniture is characterized in that this method comprises following processing step:
1) will expect in vain that each component and composite flame-retardant agent mix by the proportioning back of accurately weighing, and, make combined polyether through high-speed stirring 1 minute;
2) 80～100 order wood meal tougheners are taken by weighing by proportioning, join in the above-mentioned combined polyether that makes, use agitator high-speed stirring 1 minute, make wood powder/combined polyether mixture.
3) will deceive material (PAPI) and take by weighing, and join in the above-mentioned wood powder that makes/combined polyether mixture, through high-speed stirring 6～10 seconds, form foam mixture with agitator by proportioning.
4) foam mixture is injected mould immediately fast, mould scribbles releasing agent, 30～40 ℃ of die temperatures, and injection molding and through slaking demoulding after 20 minutes makes Wood powder reinforced polyurethane wood-imitation material.
The preparation method of described wood powder reinforced polyurethane wood-imitation material for furniture, it is characterized in that processing condition comprise that the temperature of white material, black material is 20～24 ℃, envrionment temperature is 15～26 ℃ a room temperature condition, and the stirring velocity of mechanical stirrer is 2600～3000r/min.
Advantage of the present invention: the prescription and the technology of a kind of wood powder reinforced polyurethane wood-imitation material for furniture that the present invention makes by blend, stirring, foaming, injection molding, slaking, the demoulding etc. with polyurathamc component raw material and wood meal, its wood powder raw material is easy to get, and the modification enhanced process is simple and convenient.Compare with existing traditional pure polyurethane imitation wood material by the Wood powder reinforced polyurethane wood-imitation material that the present invention makes, its ultimate compression strength and shock resistance strengthen, the woodiness touch effect is remarkable, improved density distribution, dimensional stabilizing, deformability are little, adiabatic, sound-proofing properties is good, hard, ageing-resistant, flame retardant properties can reach building B2 level; The wood powder comprehensive utilization be can realize simultaneously, urethane raw consumption, conservation cost, product environmental protection reduced; And have processing characteristicies such as good saw, plane, brill, nail, mill, sticking, painted, covering with paint, and can be molded as various abnormal shapes according to the shape of mould or have embossing pattern or the goods of decorative pattern, can be used for making the imitative wooden furniture, door and window, picture frame, moulding, household artwork etc.
Embodiment:
Embodiment 1: with polyether glycol YT-4110II, YT-403, YT-330N and N-210, blowing agent H CFC-141b, catalyst P C-5, PC-8 and A-33, suds-stabilizing agent are that the blend of L-6950 etc. is white material component; Be black material component with polyphenyl polymethylene polyisocyanates (PAPI) Suprasec 5005; With 80～100 order wood meals is toughener, is composite flame-retardant agent with TCEP and DMMP, and the constituent mass ratio of white material, black material, wood powder, fire retardant is 112: 112: 7: 11.In white material, polyether glycol accounts for 90%, whipping agent accounts for 7.2%, catalyzer accounts for 1%, stabilizer comprises 1.8%.In composite flame-retardant agent, the mass ratio of TCEP and DMMP is 3: 1.
The manufacturing process of wood powder reinforced polyurethane wood-imitation material for furniture: 1) temperature of white material, black material is 20～24 ℃, and envrionment temperature is 15～26 ℃ a room temperature condition; 2) will expect in vain to mix with composite flame-retardant agent and made combined polyether in 1 minute by proportioning through high speed (3000r/min) stirring; 3) add poplar sanding wood powder (80～100 order) by proportioning, and made wood powder/combined polyether mixture in 1 minute through high speed (3000r/min) stirring; 4) add Suprasec 5005 black material again and made foam mixture in 10 seconds by proportioning through high speed (3000r/min) stirring; 5) a certain amount of foam mixture is injected fast slaking demoulding after 20 minutes in the mould (scribbling releasing agent, 35 ℃ of die temperatures), can be made Wood powder reinforced polyurethane wood-imitation material.The performance of imitated wood material product is as shown in the table:
The Specifeca tion speeification of table 1 Wood powder reinforced polyurethane wood-imitation material
Claims (7)
1. wood powder reinforced polyurethane wood-imitation material for furniture, it is characterized in that component comprises that the mixture with polyether glycol, whipping agent, catalyzer and stablizer is white material, be black material with polyisocyanates, with 80～100 order wood meals is toughener, with the composite flame-retardant agent is fire retardant, wherein, the constituent mass ratio of white material, black material, wood powder, fire retardant is 112: 112: 7: 11.
2. wood powder reinforced polyurethane wood-imitation material for furniture according to claim 1, the component that it is characterized in that white material comprises that polyether glycol is the mixture of 4110II, 403,330N and 210, whipping agent is HCFC-141b, catalyzer is the mixture of PC-5, PC-8 and A-33, suds-stabilizing agent is the mixture of L-6950, in white material, polyether glycol account for gross weight 90%, whipping agent account for gross weight 7.2%, catalyzer account for gross weight 1%, the stabilizer comprises gross weight 1.8%.
3. wood powder reinforced polyurethane wood-imitation material for furniture according to claim 1 is characterized in that the component of black material is polyphenyl polymethylene polyisocyanates (PAPI).
4. wood powder reinforced polyurethane wood-imitation material for furniture according to claim 1, the component that it is characterized in that toughener is 80～100 order wood meals, by sanding wood powder or sawdust, wood shavings, wood chip after crushed, by sieving, be dried to 80～100 purpose wood powders.
5. wood powder reinforced polyurethane wood-imitation material for furniture according to claim 1, the component that it is characterized in that composite flame-retardant agent is the mixture of TCEP and DMMP, the mass ratio of TCEP and DMMP is 3: 1.
6. the production method of wood powder reinforced polyurethane wood-imitation material for furniture is characterized in that this method comprises following processing step:
1) will expect in vain that each component and composite flame-retardant agent mix by the proportioning back of accurately weighing, and, make combined polyether through agitator high-speed stirring 1 minute;
2) 80～100 order wood powders are taken by weighing by proportioning, join in the above-mentioned combined polyether that makes, through high-speed stirring 1 minute, make wood powder/combined polyether mixture with agitator.
3) will deceive material (PAPI) and take by weighing corresponding quality, and join in the above-mentioned wood powder that makes/combined polyether mixture, and use agitator immediately, form foam mixture through high-speed stirring 6～10 seconds by proportioning.
4) foam mixture is injected mould immediately fast, mould scribbles releasing agent, 30～40 ℃ of die temperatures, and injection molding and through slaking demoulding after 20 minutes makes Wood powder reinforced polyurethane wood-imitation material.
7. the preparation method of wood powder reinforced polyurethane wood-imitation material for furniture according to claim 6, it is characterized in that processing condition comprise that the temperature of white material, black material is 20～24 ℃, envrionment temperature is 15～26 ℃ a room temperature condition, and the stirring velocity of mechanical stirrer is 2600～3000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102323957A CN101724255B (en) | 2009-12-09 | 2009-12-09 | Wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102323957A CN101724255B (en) | 2009-12-09 | 2009-12-09 | Wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101724255A true CN101724255A (en) | 2010-06-09 |
| CN101724255B CN101724255B (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102323957A Expired - Fee Related CN101724255B (en) | 2009-12-09 | 2009-12-09 | Wood powder reinforced polyurethane wood-imitation material for furniture and production method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030879A (en) * | 2010-09-28 | 2011-04-27 | 上海东大聚氨酯有限公司 | Reinforced hard polyurethane wood-like material, raw material composite thereof and combined polyether |
| CN104448187A (en) * | 2014-11-20 | 2015-03-25 | 瀚寅(苏州)新材料科技有限公司 | Polyurethane package material and preparation method thereof |
| CN104710596A (en) * | 2015-01-28 | 2015-06-17 | 北京东方雨虹防水技术股份有限公司 | Polyurethane foam composition, polyurethane foam and preparation method of polyurethane foam |
| CN104845395A (en) * | 2015-04-20 | 2015-08-19 | 苏州经贸职业技术学院 | Wood plastic composite material for decoration, and preparation method thereof |
| CN105940047A (en) * | 2013-11-25 | 2016-09-14 | 彼得森化学工业有限公司 | Cushioning foams containing aromatic wood particles |
| CN106189177A (en) * | 2015-07-02 | 2016-12-07 | 北京林业大学 | The preparation method of a kind of wood plastic composite and wood plastic composite |
| CN107141771A (en) * | 2017-06-06 | 2017-09-08 | 肥西县碧涛建材有限公司 | A kind of Novel imitation-wood material prescription |
| CN107189030A (en) * | 2017-06-10 | 2017-09-22 | 刘锦白 | A kind of manufacture method of multifunctional rigid foam polyurethane anaglyphy ceiling and cinerary casket |
| CN108102070A (en) * | 2017-12-01 | 2018-06-01 | 浙江农林大学 | The method of plant fiber production nonflammable rigid polyurethane foam combination material |
| CN108997556A (en) * | 2018-07-27 | 2018-12-14 | 浙江华峰新材料股份有限公司 | Polyurethane stock solution and its preparation method and application containing powdered biomass |
| CN110157179A (en) * | 2019-04-23 | 2019-08-23 | 宁波昕科工贸有限公司 | A kind of environmentally friendly exothermic material and preparation method thereof for floor |
| CN113910732A (en) * | 2021-10-21 | 2022-01-11 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Composite board for railway flatcar and preparation method and application thereof |
| CN114133759A (en) * | 2021-12-28 | 2022-03-04 | 西安交通大学 | Light multifunctional composite material prepared from polyurethane and cork particles and preparation method and application thereof |
| CN114685973A (en) * | 2022-04-09 | 2022-07-01 | 哈尔滨工业大学 | Hard polyurethane foam thermal insulation material added with wood particles and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101503504B (en) * | 2008-12-01 | 2011-04-13 | 无锡双象化学工业有限公司 | Preparation of polyurethane rigid foam wood-like material |
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2009
- 2009-12-09 CN CN2009102323957A patent/CN101724255B/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030879A (en) * | 2010-09-28 | 2011-04-27 | 上海东大聚氨酯有限公司 | Reinforced hard polyurethane wood-like material, raw material composite thereof and combined polyether |
| CN102030879B (en) * | 2010-09-28 | 2012-07-25 | 上海东大聚氨酯有限公司 | Reinforced hard polyurethane wood-like material, raw material composite thereof and combined polyether |
| CN105940047A (en) * | 2013-11-25 | 2016-09-14 | 彼得森化学工业有限公司 | Cushioning foams containing aromatic wood particles |
| CN104448187A (en) * | 2014-11-20 | 2015-03-25 | 瀚寅(苏州)新材料科技有限公司 | Polyurethane package material and preparation method thereof |
| CN104448187B (en) * | 2014-11-20 | 2017-07-07 | 瀚寅(苏州)新材料科技有限公司 | A kind of polyurethane packaging material and preparation method thereof |
| CN104710596A (en) * | 2015-01-28 | 2015-06-17 | 北京东方雨虹防水技术股份有限公司 | Polyurethane foam composition, polyurethane foam and preparation method of polyurethane foam |
| CN104845395A (en) * | 2015-04-20 | 2015-08-19 | 苏州经贸职业技术学院 | Wood plastic composite material for decoration, and preparation method thereof |
| CN106189177A (en) * | 2015-07-02 | 2016-12-07 | 北京林业大学 | The preparation method of a kind of wood plastic composite and wood plastic composite |
| CN107141771A (en) * | 2017-06-06 | 2017-09-08 | 肥西县碧涛建材有限公司 | A kind of Novel imitation-wood material prescription |
| CN107189030A (en) * | 2017-06-10 | 2017-09-22 | 刘锦白 | A kind of manufacture method of multifunctional rigid foam polyurethane anaglyphy ceiling and cinerary casket |
| CN108102070A (en) * | 2017-12-01 | 2018-06-01 | 浙江农林大学 | The method of plant fiber production nonflammable rigid polyurethane foam combination material |
| CN108997556A (en) * | 2018-07-27 | 2018-12-14 | 浙江华峰新材料股份有限公司 | Polyurethane stock solution and its preparation method and application containing powdered biomass |
| CN108997556B (en) * | 2018-07-27 | 2020-06-16 | 浙江华峰新材料有限公司 | Polyurethane stock solution containing biomass powder and preparation method and application thereof |
| CN110157179A (en) * | 2019-04-23 | 2019-08-23 | 宁波昕科工贸有限公司 | A kind of environmentally friendly exothermic material and preparation method thereof for floor |
| CN110157179B (en) * | 2019-04-23 | 2021-02-19 | 宁波昕科工贸有限公司 | Environment-friendly heating material for floor and preparation method thereof |
| CN113910732A (en) * | 2021-10-21 | 2022-01-11 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Composite board for railway flatcar and preparation method and application thereof |
| CN113910732B (en) * | 2021-10-21 | 2023-10-31 | 中国铁道科学研究院集团有限公司金属及化学研究所 | Composite board for railway flatcar and preparation method and application thereof |
| CN114133759A (en) * | 2021-12-28 | 2022-03-04 | 西安交通大学 | Light multifunctional composite material prepared from polyurethane and cork particles and preparation method and application thereof |
| CN114685973A (en) * | 2022-04-09 | 2022-07-01 | 哈尔滨工业大学 | Hard polyurethane foam thermal insulation material added with wood particles and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101724255B (en) | 2012-10-31 |
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