CN103570909A - Preparation method of undamaged polyurethane material - Google Patents
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- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
- C08G18/6229—Polymers of hydroxy groups containing esters of acrylic or methacrylic acid with aliphatic polyalcohols
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- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6237—Polymers of esters containing glycidyl groups of alpha-beta ethylenically unsaturated carboxylic acids; reaction products thereof
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- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- 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
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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Abstract
The invention discloses a preparation method of an undamaged polyurethane material. The preparation method comprises the following steps of (1) carrying out the surface hydroxylation or amination treatment on inorganic or thermosetting organic filler in a treating agent at the temperature of 25 to 90 DEG C, thus obtaining active filler rich in hydroxyl or amino on the surface; (2) carrying out chain extension reaction of the active filler with polyhydric alcohols, isocyanate and organic micromolecule chain extender at the temperature of 0 to 90 DEG C according to the mass ratio of (0-50): (50-200): (0-100): (0-10) for 1 to 8 hours under the condition that the use of a catalyst is 0 to 1 according to a mass ratio, thus obtaining the undamaged polyurethane material. The method for preparing the undamaged polyurethane material is successfully developed, the undamaged polyurethane material prepared through the method has the tensile strength and rebound resilience of ordinary polyurethane material and has great advantages on the aspects of the mechanics performance and the production cost compared with the traditional polyurethane. The production process is simple, and the produced undamaged polyurethane material can be applied to the fields such as automobile and train sealing, building decoration, synthesized leather and the like.
Description
Technical field
The present invention relates to the preparation and modification field of functional high molecule material, specifically refer to a kind of preparation method of harmless polyurethane material.
Background technology
Urethane (PU) is the macromolecular material that contains urethano group in a kind of molecular chain, by whether being cross-linked of molecular chain wherein, can be divided into thermoplastic polyurethane (TPU) and cross-linked type polyurethane (CPU).Generally speaking, urethane mainly by polyvalent alcohol, isocyanic ester and small molecule chain extender through addition polymerization progressively and obtain.By controlling mole proportioning of isocyanic ester and hydroxyl, can obtain the functional high molecule material that has excellent mechanical property and superior elasticity, wear resistance concurrently, this type of material has been widely used in the fields such as automobile component, caking agent, building decoration, synthetic leather, aeronautical and space technology.
From the polymerization reaction mechanism of urethane, the generation of polyurethane macromolecular must be attended by the use of polyvalent alcohol, isocyanic ester and small molecule chain extender.And the price of above three kinds of chemical raw materials is all very expensive, isocyanic ester wherein particularly.With 4,4,-diphenylmethanediisocyanate (MDI) is example, its current market price is all more than 2.5 ten thousand/ton, and domestic also only have such minority unit's this chemical of energy scale production such as Yantai, Shandong Wan Hua limited-liability company, its output can not meet the domestic huge market requirement completely, still need to be from a large amount of imports of the companies such as German Baeyer.Above-mentioned reason has caused urethane finished product fancy price, take polyether(poly)urethane as example, its market price all 4-5 ten thousand/ton, seriously hindered it in the large-scale application in the field such as civilian.Mainly because its fancy price makes a lot of enterprises hope and draw back, the use of association area with in modifying process, selected the relative elastomerics poor but that price is more cheap of performance to replace urethane.
Just because of having recognized above-mentioned defect, people often also reach by more additional such mineral fillers such as calcium carbonate, talcum powder, barium sulfate the object that reduces material cost in the actual use procedure of polyurethane material, but regrettably the add-on of this type of mineral filler is very limited.When add-on surpasses after certain value, the mechanical property of polyurethane material will have obvious damage, can not meet the service requirements of association area.Because this type of mineral filler is only even not carry out surface treatment by simple coupling agent treatment to join in urethane, Intermolecular Forces is therebetween very limited, and certainly will cause remarkably influenced adding of filler on the spatial arrangement situation of polyurethane macromolecular.When matrix material is subject to extraneous a certain reactive force, if external influence power is far longer than the Intermolecular Forces between inorganic particulate and polyurethane macromolecular, to cause the model ylid bloom action power of self between polyurethane macromolecular to weaken adding of filler so, thereby cause the mechanical properties decrease of polyurethane material self.
Above-mentioned defect for current polyurethane material, the Lossless polyurethane material of developing a kind of moderate cost and again the comprehensive mechanical property of polyurethane body not being made significant difference is very necessary, significant to the expansion of the functionalization of polyurethane material and Application Areas.
Summary of the invention
The object of the invention is to develop a kind of method that can prepare Lossless polyurethane material, the Lossless polyurethane material prepared by method is moderate and again the comprehensive mechanical property of polyurethane body is not made significant difference.
The present invention is achieved through the following technical solutions: a kind of preparation method of harmless polyurethane material, comprises the following steps:
(1) in treatment agent, mineral filler or thermoset organic filler are carried out to surface hydroxyl or amination processing under 25-90 ℃ of conditions, to obtain rich surface hydroxyl or amino active filler;
(2) at catalyst levels, be that 0-1% quality is than under condition, by above-mentioned active filler and polyvalent alcohol, isocyanic ester and organic molecule chainextender under 0-90 ℃ of conditions in mass ratio 0-50:50-200:0-100:0-10 carry out chain extending reaction 1-8 hours, can obtain harmless polyurethane material.
To there is mineral filler cheaply or thermoset organic filler activates, and make its surface there is abundant hydroxyl or amino group.Again under catalyzer condition, this activity that is rich in hydroxyl or amino group, inorganic or thermoset organic filler carries out the chain extending reaction of urethane as chainextender and polyvalent alcohol and isocyanic ester, thereby obtains the harmless polyurethane material that the mechanical property of polyurethane body material is not damaged
Further, described treatment agent is at least one in Hydroxyethyl acrylate, Propylene glycol monoacrylate, vinylformic acid glycidyl ether, acrylamide, sodium hydroxide potassium permanganate mixing solutions;
Further, described mineral filler is at least one in calcium carbonate, carbon black, silicon-dioxide, titanium dioxide, calcium hydroxide, magnesium hydroxide, aluminium hydroxide, polynite, mica powder, talcum powder, barium sulfate, diatomite;
Further, described thermoset organic filler is at least one in melmac powder, urea-formaldehyde resin powder, phenol-formaldehyde resin powder, epoxy resin powder, rubber powder, crosslinked polyethylene powder, cross-linked polyurethane powder;
Further, described catalyzer is at least one in dibutyl tin dilaurate, diethylamine;
Further, described polyvalent alcohol is at least one in polyoxyethylene glycol, polypropylene glycol, PTMG, Viscotrol C, hydroxyl soybean oil, polyethylene glycol adipate glycol, polybutylene glyool adipate, poly terephthalic acid glycol ether esterdiol;
Further, described isocyanic ester is 2, the diisocyanate based toluene of 4-(TDI), 4,4, at least one in-diphenylmethanediisocyanate (MDI), polyphenyl polyisocyanate (PAPI), aliphatic diisocyanate (HDI), alicyclic diisocyanate (IPDI);
Further, described organic molecule chainextender is at least one in ethylene glycol, butyleneglycol, glycol ether, quadrol, hexanediamine, phenylenediamine;
The present invention compared with prior art, the advantage having and beneficial effect are: the method for a kind of harmless polyurethane material of exploitation preparation, the harmless polyurethane material making by this preparation method not only has tensile strength and the rebound resilience of conventional polyurethanes material excellence, simultaneously compared with conventional urethane, aspect mechanical property, production cost, also there is very big advantage, and it is simple that the method is prepared production technique, the harmless polyurethane material of production can be widely used in the fields such as automobile and train sealing, building decoration, synthetic leather.
Accompanying drawing explanation
Fig. 1 is the preparating mechanism schematic diagram of harmless polyurethane material;
Fig. 2 can't harm the mechanical performance compare schematic diagram of polyurethane material and pure polyurethane material in embodiment 2;
Fig. 3 can't harm the mechanical performance compare schematic diagram of polyurethane material and pure polyurethane material in embodiment 3;
Fig. 4 can't harm the mechanical performance compare schematic diagram of polyurethane material and pure polyurethane material in embodiment 4;
Fig. 5 can't harm the mechanical performance compare schematic diagram of polyurethane material and pure polyurethane material in embodiment 5.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this, without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacements and change, all should comprise within the scope of the invention.
Embodiment 1:
Embodiment discloses a kind of preparation method of harmless polyurethane material, whole method preparating mechanism as shown in Figure 1, (1) in treatment agent, mineral filler or thermoset organic filler are carried out to surface hydroxyl or amination processing under 25-90 ℃ of conditions, to obtain rich surface hydroxyl or amino active filler; (2) at catalyst levels, be that 0-1% quality is than under condition, by above-mentioned active filler and polyvalent alcohol, isocyanic ester and organic molecule chainextender under 0-90 ℃ of conditions in mass ratio 0-50:50-200:0-100:0-10 carry out chain extending reaction 1-8 hours, can obtain harmless polyurethane material.
Be about to have mineral filler cheaply or thermoset organic filler activates, make its surface there is abundant hydroxyl or amino group.Again under catalyzer condition, this activity that is rich in hydroxyl or amino group, inorganic or thermoset organic filler carries out the chain extending reaction of urethane as chainextender and polyvalent alcohol and isocyanic ester, thereby obtains the harmless polyurethane material that the mechanical property of polyurethane body material is not damaged.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, further define the preparation technology of active filler and use material, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, the mechanical performance compare of the low-cost harmless urethane of gained and pure urethane, as shown in Figure 2.
In the there-necked flask that carries heating and whipping appts, add successively 100 g dehydrated alcohols, 20 g 1250 order water-ground limestones, 2 g Hydroxyethyl acrylates and 0.02 g Potassium Persulphate, after mixing, make gradually system temperature be increased to 70 ℃, insulation reaction 6 hours is also cooled to after 40 ℃ mixing solutions filtration, the dry Paris white that can obtain surface activation process.
In the there-necked flask that carries heating and whipping appts, add successively 100 g PTMG 1000,28 g 4,4,-diphenylmethanediisocyanate (MDI) and 0.05 g dibutyl tin dilaurate, after mixing, make gradually system temperature be increased to 60 ℃, insulation reaction added the above-mentioned Paris white through surface activation process of 25 g, 0.09 g chainextender 1 after 1 hour in there-necked flask, 4-butyleneglycol and 20 g toluene, system temperature to 90 ℃ raises simultaneously.Continue insulation reaction and after 5-10 minutes, the mixing solutions in there-necked flask is poured in special tetrafluoroethylene mould, and mould is placed in vacuum drying oven to slaking under 0.09 MPa and 70 ℃ of conditions within 4 hours, obtains the calcium carbonate modified harmless polyurethane material of surface active.The tensile strength of this harmless polyurethane material and elongation at break can reach 43 MPa and 540% respectively.
The preparation technology of selected active filler and use material in this embodiment, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, not unique, conduct is here a kind of preferred version wherein.
Embodiment 3:
The present embodiment is on the basis of embodiment 1, further define the preparation technology of active filler and use material, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, the mechanical performance compare of the low-cost harmless urethane of gained and pure urethane, as shown in Figure 3.
In the there-necked flask that carries heating and whipping appts, add successively 100 g acetone, 50 g 800 object talcum powder, 10 g vinylformic acid glycidyl ethers and 0.1 g Diisopropyl azodicarboxylate, after mixing, make gradually system temperature be increased to the reflux temperature of acetone, insulation reaction 6 hours is also cooled to after 40 ℃ mixing solutions filtration, the dry talcum powder that can obtain surface activation process.
In the there-necked flask that carries heating and whipping appts, add successively 200 g to gather diethylene glycol adipate glycol 2000,22 g 2,4,-diisocyanate based toluene (TDI), 0.05 g dibutyl tin dilaurate and 0.03 g diethylamine, after mixing, make gradually system temperature be increased to 60 ℃, insulation reaction added the above-mentioned talcum powder through surface activation process of 40 g, 6 g glycol ethers and 20 g ethyl acetate after 1 hour in there-necked flask, and system temperature to 75 ℃ raises simultaneously.Continue insulation reaction and after 5-10 minutes, the mixing solutions in there-necked flask is poured in special tetrafluoroethylene mould, and mould is placed in vacuum drying oven to the harmless polyurethane material that slaking under 0.09 MPa and 70 ℃ of conditions obtains the modification of surface active talcum powder for 4 hours.The tensile strength of this harmless polyurethane material and elongation at break can reach 52 MPa and 420% respectively.
The preparation technology of selected active filler and use material in this embodiment, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, not unique, conduct is here a kind of preferred version wherein.
Embodiment 4:
The present embodiment is on the basis of embodiment 1, further define the preparation technology of active filler and use material, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, the mechanical performance compare of the low-cost harmless urethane of gained and pure urethane, as shown in Figure 4.
Under normal temperature condition, in the there-necked flask that carries heating and whipping appts, add successively industrial alcohol, 50 g 60 object rubber powders, 1 g sodium hydroxide and the 5 g potassium permanganate that 200 g purity are 95%, mix rear insulation reaction 4 hours.Continue to drip gradually the hydrogen peroxide solution that 2 g volume ratios are 30% in above-mentioned system, insulation reaction after 2 hours is filtered mixing solutions, the dry rubber powder that can obtain surface activation process.
In the there-necked flask that carries heating and whipping appts, add successively 100 g PTMG 2000,50 g cetomacrogol 1000s, 25 g 1,6,-diisocyanate based butane (HDI), 0.05 g dibutyl tin dilaurate and 0.05 g diethylamine, after mixing, make gradually system temperature be increased to 40 ℃, insulation reaction added the above-mentioned rubber powder through surface activation process of 30 g, 4.5 g 1 after 2 hours in there-necked flask, 4-butyleneglycol and 50 g dimethylbenzene, system temperature to 80 ℃ raises simultaneously.Continue insulation reaction and after 5-10 minutes, the mixing solutions in there-necked flask is poured in special tetrafluoroethylene mould, and mould is placed in vacuum drying oven to the harmless polyurethane material that slaking under 0.09 MPa and 70 ℃ of conditions obtains surface active modifying rubber powder for 4 hours.The tensile strength of this harmless polyurethane material and elongation at break can reach 31 MPa and 550% respectively.
The preparation technology of selected active filler and use material in this embodiment, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, not unique, conduct is here a kind of preferred version wherein.
Embodiment 5:
The present embodiment is on the basis of embodiment 1, further define the preparation technology of active filler and use material, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, the mechanical performance compare of the low-cost harmless urethane of gained and pure urethane, as shown in Figure 5.
Under normal temperature condition, in the there-necked flask that carries heating and whipping appts, add successively 100 g N, dinethylformamide, 50 g 800 object melmac powder, 8 g acrylamides, 2 g Propylene glycol monoacrylate and ammonium persulphates, after mixing, make gradually system temperature be increased to 90 ℃, insulation reaction 8 hours is also cooled to after 40 ℃ mixing solutions filtration, the dry melmac powder that can obtain surface activation process.
In the there-necked flask that carries heating and whipping appts, add successively 100 g poly terephthalic acid glycol ether esterdiols 1500, 100 g PTMG 1000, 14 g Viscotrol C, the above-mentioned melmac powder through surface activation process of 30 g, 1.2 g glycol ethers, 30 g polyphenyl polyisocyanate base toluene (PAPI) and 0.1 g dibutyl tin dilaurate, after mixing, make gradually system temperature be increased to 60 ℃, insulation reaction poured into the mixing solutions in there-necked flask in special tetrafluoroethylene mould after 15 minutes, and mould is placed in vacuum drying oven to the harmless polyurethane material that slaking under 0.09 MPa and 70 ℃ of conditions obtains the modification of surface active melmac powder for 4 hours.The tensile strength of this harmless polyurethane material and elongation at break can reach 35 MPa and 380% respectively.
The preparation technology of selected active filler and use material in this embodiment, and the use material of polyvalent alcohol, isocyanic ester and organic molecule chainextender, not unique, conduct is here a kind of preferred version wherein.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction, and any simple modification, equivalent variations that every foundation technical spirit of the present invention is done above embodiment, within all falling into protection scope of the present invention.
Claims (8)
1. a preparation method for harmless polyurethane material, is characterized in that: comprise the following steps:
(1) in treatment agent, mineral filler or thermoset organic filler are carried out to surface hydroxyl or amination processing under 25-90 ℃ of conditions, to obtain rich surface hydroxyl or amino active filler;
(2) at catalyst levels, be that 0-1% quality is than under condition, by above-mentioned active filler and polyvalent alcohol, isocyanic ester and organic molecule chainextender under 0-90 ℃ of conditions in mass ratio 0-50:50-200:0-100:0-10 carry out chain extending reaction 1-8 hours, can obtain harmless polyurethane material.
2. the preparation method of a kind of harmless polyurethane material according to claim 1, is characterized in that: described treatment agent is at least one in Hydroxyethyl acrylate, Propylene glycol monoacrylate, vinylformic acid glycidyl ether, acrylamide, sodium hydroxide potassium permanganate mixing solutions.
3. the preparation method of a kind of harmless polyurethane material according to claim 1, is characterized in that: described mineral filler is at least one in calcium carbonate, carbon black, silicon-dioxide, titanium dioxide, calcium hydroxide, magnesium hydroxide, aluminium hydroxide, polynite, mica powder, talcum powder, barium sulfate, diatomite.
4. the preparation method of a kind of harmless polyurethane material according to claim 1, is characterized in that: described thermoset organic filler is at least one in melmac powder, urea-formaldehyde resin powder, phenol-formaldehyde resin powder, epoxy resin powder, rubber powder, crosslinked polyethylene powder, cross-linked polyurethane powder.
5. the preparation method of a kind of harmless polyurethane material according to claim 1, is characterized in that: described catalyzer is at least one in dibutyl tin dilaurate, diethylamine.
6. the preparation method of a kind of harmless polyurethane material according to claim 1, is characterized in that: described polyvalent alcohol is at least one in polyoxyethylene glycol, polypropylene glycol, PTMG, Viscotrol C, hydroxyl soybean oil, polyethylene glycol adipate glycol, polybutylene glyool adipate, poly terephthalic acid glycol ether esterdiol.
7. the preparation method of a kind of harmless polyurethane material according to claim 1, it is characterized in that: described isocyanic ester is 2, the diisocyanate based toluene of 4-, 4,4, at least one in-diphenylmethanediisocyanate, polyphenyl polyisocyanate, aliphatic diisocyanate, alicyclic diisocyanate.
8. the preparation method of a kind of harmless polyurethane material according to claim 1, is characterized in that: described organic molecule chainextender is at least one in ethylene glycol, butyleneglycol, glycol ether, quadrol, hexanediamine, phenylenediamine.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893429A (en) * | 2015-05-14 | 2015-09-09 | 四川大学 | Prepolymer method used for preparing modified nano carbon black water-based color paste |
| CN106279626A (en) * | 2016-08-23 | 2017-01-04 | 无锡市永亿精密铸造有限公司 | A kind of composite for ultrasonic cavitron |
| CN109054178A (en) * | 2018-07-20 | 2018-12-21 | 吴伟华 | A kind of talcum powder and preparation method thereof improving toughness |
| CN113930132A (en) * | 2021-11-17 | 2022-01-14 | 芜湖跃兆生物科技有限公司 | Gallic acid modified diatomite modified epoxy resin paint and preparation method thereof |
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| CN102964561A (en) * | 2012-10-19 | 2013-03-13 | 云南大学 | Preparation method of lossless polyurethane material |
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2013
- 2013-09-26 CN CN201310443434.4A patent/CN103570909A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964561A (en) * | 2012-10-19 | 2013-03-13 | 云南大学 | Preparation method of lossless polyurethane material |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104893429A (en) * | 2015-05-14 | 2015-09-09 | 四川大学 | Prepolymer method used for preparing modified nano carbon black water-based color paste |
| CN106279626A (en) * | 2016-08-23 | 2017-01-04 | 无锡市永亿精密铸造有限公司 | A kind of composite for ultrasonic cavitron |
| CN109054178A (en) * | 2018-07-20 | 2018-12-21 | 吴伟华 | A kind of talcum powder and preparation method thereof improving toughness |
| CN113930132A (en) * | 2021-11-17 | 2022-01-14 | 芜湖跃兆生物科技有限公司 | Gallic acid modified diatomite modified epoxy resin paint and preparation method thereof |
| CN113930132B (en) * | 2021-11-17 | 2022-10-21 | 芜湖跃兆生物科技有限公司 | Gallic acid modified diatomite modified epoxy resin paint and preparation method thereof |
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