CN106750123A - A kind of mounted refrigerating cabinet of high leakproofness - Google Patents
A kind of mounted refrigerating cabinet of high leakproofness Download PDFInfo
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- CN106750123A CN106750123A CN201611158443.9A CN201611158443A CN106750123A CN 106750123 A CN106750123 A CN 106750123A CN 201611158443 A CN201611158443 A CN 201611158443A CN 106750123 A CN106750123 A CN 106750123A
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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
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/20—Refrigerated goods vehicles
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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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
- C08K3/02—Elements
- C08K3/08—Metals
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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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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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
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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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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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
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0812—Aluminium
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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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
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Abstract
The present invention discloses a kind of mounted refrigerating cabinet of high leakproofness,Including closed cabinet and refrigeration unit,The closed bottom of cabinet bulk middle position is fixed with fixed brandreth,The closed cabinet includes outer cover of steel plate,With the polyurethane thermal insulation layer for being arranged on the outer cover of steel plate inwall,The polyurethane thermal insulation layer is fitted fixation with outer cover of steel plate,The bottom of the outer cover of steel plate is provided with polyurethane every supporting plate,The polyurethane is fitted fixation every supporting plate with outer cover of steel plate,The chute being parallel to each other is provided with the polyurethane supporting plate,The tail end of the closed cabinet is provided with sealing cabinet door,The refrigerant unit clamping is fixed on the side at the top of closed cabinet,The refrigerant unit is provided with cold air import,The mounted refrigerating cabinet of this kind of high leakproofness has excellent sealing property,And the cold air circulation in cabinet is conveniently,And polyurethane thermal insulation layer has intensity big,Good heat preservation performance and lightweight advantage.
Description
Technical field
The present invention relates to a kind of mounted refrigerating cabinet of high leakproofness.
Background technology
Refrigerator car is the closed transport van for transport frozen or fresh-keeping goods, is equipped with the system of refrigeration unit
Device for cooling and the refrigeration special transport automobile in the heat-insulated railway carriage or compartment of polyurethane.It is usually used in transport frozen food (van cooler), dairy produce (milk products
Transport vehicle), vegetable and fruit (fresh goods transport vehicle), vaccine medicine (vaccine transport vehicle) etc..When transport needs fresh-keeping goods, need
Refrigerator car, refrigerator car is used to generally comprise the carrier car for delivering, refrigeration is fixedly installed in the chassis upper of carrier car
Carriage body, refrigeration carriage body is the carriage body of cold insulation, and refrigeration unit is provided with refrigeration carriage body, and the cold that refrigeration unit is produced is used for protecting
Relatively low temperature is kept in card refrigerating carriage body.
General refrigerator car floor is all using the aluminium guide rail floor with ventilation；But it is without aluminium also to have some refrigerator cars
Guide rail, be using flat abrasive floor.It is to adopt generally as third party transport enterprise or for the Enterprise Transportation car of dairy produce
With flat abrasive floor, it is therefore an objective to be suitable for the transport of multiple product, or it is easy to clean ground.But loading when it has to be noticed that
Must be freighted with two-sided supporting plate, to ensure the circulation of ground cold air.Forbid directly to be deposited in goods the floor of plane
On, additionally, refrigerated truck special technology produces refrigerated truck of new generation with vacuum adsorption equipment.The refrigerator carriage of production
Body uses overall skeleton " sandwich " adhered technique of plate, machined glass steel or color steel of the inside and outside wallboard from domestic high-quality；
Moderate soak material selection 8mm thickness imported polyurethanes；Carriage body periphery aluminum alloy edge-wrapped；Base plate uses integral cast-in-situ fiberglass, protects
Warm nature is good, and bulk strength is big；Railway carriage or compartment base plate chooses to install ventilation slot, is easy to the cold air full car of circulation, and keep temperature equalization in railway carriage or compartment.
Therefore, in sum, existing mounted refrigerating cabinet poor sealing performance, and the cold air circulation inconvenience in cabinet, lead
Cause that the cold air in cabinet is uneven, and thermal insulation layer is generally froth bed, its intensity is small, heat insulating ability and the problems such as sealing difference it is bright
It is aobvious.
The content of the invention
In view of this, it is an object of the present invention to provide a kind of with excellent sealing property, and the cold air circulation side in cabinet
And polyurethane thermal insulation layer has the mounted refrigerating cabinet of the high leakproofness of intensity big, good heat preservation performance and lightweight advantage just,.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of mounted refrigerating cabinet of high leakproofness, including
Closed cabinet and refrigeration unit, the closed bottom of cabinet bulk middle position are fixed with fixed brandreth, the closed cabinet
Including outer cover of steel plate, and the polyurethane thermal insulation layer of the outer cover of steel plate inwall is arranged on, outside the polyurethane thermal insulation layer and steel plate
Shell laminating is fixed, and the bottom of the outer cover of steel plate is provided with polyurethane every supporting plate, and the polyurethane is pasted every supporting plate and outer cover of steel plate
Close and fix, the chute being parallel to each other is provided with the polyurethane supporting plate, the tail end of the closed cabinet is provided with sealed cabinet
Door, the refrigerant unit clamping is fixed on the side at the top of closed cabinet, and the refrigerant unit is provided with cold air import.
Further, the polyurethane thermal insulation layer is made up of the raw material of following weight portion, including PPG 110-160
Part, isocyanates 70-90 parts, phosphate 40-60 parts, 30-46 parts of 1,2- propane diols, ferrocene 33-45 parts, bamboo-carbon fibre 20-
36 parts, aluminium powder 20-28 parts, potassium hydroxide 19-27 parts, nano-calcium carbonate 15-25 parts, siloxanes 10-16 parts, carboxylate 10-16
Part, butanediol 9-15 parts of Isosorbide-5-Nitrae one, 1,6 one hexylene glycol 9-15 parts, silane coupler 11-17 parts and quaternary ammonium salt 20-34 parts.
Further, the polyurethane thermal insulation layer is made up of the raw material of following weight portion, including 160 parts of PPG,
70 parts of isocyanates, 40 parts of phosphate, 30 parts of 1,2- propane diols, 33 parts of ferrocene, 20 parts of bamboo-carbon fibre, 20 parts of aluminium powder, hydrogen-oxygen
Change 19 parts of potassium, 15 parts of nano-calcium carbonate, 10 parts of siloxanes, 10 parts of carboxylate, 9 parts of one butanediol of Isosorbide-5-Nitrae, 9 parts of 1,6 one hexylene glycol,
20 parts of 11 parts of silane coupler and quaternary ammonium salt.
Further, the polyurethane thermal insulation layer is made up of the raw material of following weight portion, including 110 parts of PPG,
90 parts of isocyanates, 60 parts of phosphate, 46 parts of 1,2- propane diols, 45 parts of ferrocene, 36 parts of bamboo-carbon fibre, 28 parts of aluminium powder, hydrogen-oxygen
Change 27 parts of potassium, 25 parts of nano-calcium carbonate, 16 parts of siloxanes, 16 parts of carboxylate, 15 parts of one butanediol of Isosorbide-5-Nitrae, 1,6 one hexylene glycols 15
34 parts of part, 17 parts of silane coupler and quaternary ammonium salt.
Further, the polyurethane thermal insulation layer is made up of the raw material of following weight portion, including 135 parts of PPG,
80 parts of isocyanates, 50 parts of phosphate, 38 parts of 1,2- propane diols, 39 parts of ferrocene, 28 parts of bamboo-carbon fibre, 24 parts of aluminium powder, hydrogen-oxygen
Change 23 parts of potassium, 20 parts of nano-calcium carbonate, 13 parts of siloxanes, 13 parts of carboxylate, 12 parts of one butanediol of Isosorbide-5-Nitrae, 1,6 one hexylene glycols 12
27 parts of part, 14 parts of silane coupler and quaternary ammonium salt.
The invention solves the problems that another technical problem be that a kind of preparation method of polyurethane thermal insulation layer is provided, including following step
Suddenly：
1) take PPG 110-160 parts, isocyanates 70-90 parts and phosphate 40-60 parts to be put into smelting furnace, and add
Heat is to 380-440 DEG C so that PPG, isocyanates and phosphate change rapid fusing at high temperature, and mixed glue solution is obtained,
It is standby；
2) aluminium powder 20-28 parts, potassium hydroxide 19-27 parts and nano-calcium carbonate 15-25 parts mixing is taken, is then 50 with filter opening
Purpose filter screen carries out filtering screening, collects the powder below 50 mesh, and filler is obtained, standby；
3) by step 2) filler that stirs is put into agitator, by weight 1：4 ratio addition water, then passes through
Mixer is mixed mixed fillers with water with the rotating speed of 55r/min, and filler slurries are obtained, standby；
4) by step 3) obtained in filler slurries and step 1) obtained in mixed glue solution mix, while keeping glue 380-
440 DEG C of heating-up temperature, and filler slurries and mixed glue solution are stirred with the rotating speed of 30r/min in homogenizer, make
Filler slurries are obtained to be fused in mixed glue solution, it is standby；
5) by step 4) mixed glue solution after stirring is cooled to 200 DEG C, 30-46 parts of 1,2-PD of addition, ferrocene 33-
45 parts, bamboo-carbon fibre 20-36 parts and carboxylate 10-16 parts, it is slowly stirred with the rotating speed of 50r/min by mixer so that 1,
2- propane diols, ferrocene, bamboo-carbon fibre, siloxanes and carboxylate and mixed glue solution stir so that the plasticity of mixed glue solution
Performance enhancement, it is standby；
6) butanediol 9-15 parts of Isosorbide-5-Nitrae one, 1,6 one hexylene glycol 9-15 parts, siloxanes 10-16 parts, silane coupler 11-17 are taken
Part and quaternary ammonium salt 20-34 parts be added to step 5) obtained in mixed glue solution, be heated to 300 DEG C, and keeping temperature 1-2 hours,
It is standby so that mixed glue solution and above-mentioned material hybrid reaction so that the viscosity increase of glue；
7) by step 6) obtained in mixed glue solution stand 6-10 minutes so that mixed glue solution is eliminated in the presence of siloxanes
Bubble, it is standby.
8) by step 7) obtained in mixed glue solution injected on the mould got ready by casting machine, polyurethane plate is obtained, so
After stand natural cooling, obtain final product.
The technology of the present invention effect major embodiment is in the following areas：Polyurethane thermal insulation layer, Neng Gouyan are protected by outer cover of steel plate
The service life of polyurethane thermal insulation layer long, while the effect of heat insulation of refrigerator can be improved by polyurethane thermal insulation layer, while logical
Cross PPG, isocyanates, phosphate, 1,2- propane diols, ferrocene, bamboo-carbon fibre, aluminium powder, potassium hydroxide, nano-sized carbon
Sour calcium, siloxanes, carboxylate, the butanediol of Isosorbide-5-Nitrae one, 1,6 one hexylene glycols, silane coupler and polyurethane obtained in quaternary ammonium salt are heat-insulated
Layer has big intensity, good heat preservation performance and lightweight advantage.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of the mounted refrigerating cabinet of high leakproofness of the invention.
Specific embodiment
Below in conjunction with accompanying drawing 1, specific embodiment of the invention is described in further detail, so that technical solution of the present invention is more
Should be readily appreciated that and grasp.
Embodiment 1
A kind of mounted refrigerating cabinet of high leakproofness, including closed cabinet 1 and YD-550MAX refrigeration units 2, the closing
The bottom middle position of formula cabinet 1 is fixed with fixed brandreth 3, and for mutually being fixed with automobile, the closed cabinet 1 is included outside steel plate
Shell 4, and the polyurethane thermal insulation layer 5 of the inwall of the outer cover of steel plate 4 is arranged on, polyurethane thermal insulation layer 5 is protected by outer cover of steel plate 4,
Insulation is thermally shielded by polyurethane thermal insulation layer 5, the polyurethane thermal insulation layer 5 is fitted fixation with outer cover of steel plate 4, outside the steel plate
The bottom of shell 4 is provided with polyurethane every supporting plate 6, and the polyurethane is fitted fixation, the polyurethane every supporting plate 6 with outer cover of steel plate 4
The chute 7 being parallel to each other is provided with supporting plate 6, the tail end of the closed cabinet 1 is provided with sealing cabinet door 8, the YD-
The clamping of 550MAX refrigerants unit 2 is fixed on the side at the top of closed cabinet 1, and the YD-550MAX refrigerants unit 2 is set
There is cold air import 9.
The polyurethane thermal insulation layer 3 is made up of the raw material of following weight portion, including 160 parts of PPG, isocyanates
70 parts, 40 parts of phosphate, 30 parts of 1,2- propane diols, 33 parts of ferrocene, 20 parts of bamboo-carbon fibre, 20 parts of aluminium powder, 19 parts of potassium hydroxide,
15 parts of nano-calcium carbonate, 10 parts of siloxanes, 10 parts of carboxylate, 9 parts of one butanediol of Isosorbide-5-Nitrae, 9 parts of 1,6 one hexylene glycol, silane coupler
11 parts and 20 parts of quaternary ammonium salt.
A kind of preparation method of polyurethane thermal insulation layer, comprises the following steps：
1) 40 parts of 160 parts of PPG, 70 parts of isocyanates and phosphate are taken to be put into smelting furnace, and are heated to 380 DEG C,
So that PPG, isocyanates and phosphate change rapid fusing at high temperature, mixed glue solution is obtained, it is standby；
2) 20 parts of aluminium powder, the 15 parts of mixing of 19 parts of potassium hydroxide and nano-calcium carbonate are taken, then with the filter screen that filter opening is 50 mesh
Filtering screening is carried out, the powder below 50 mesh is collected, filler is obtained, it is standby；
3) by step 2) filler that stirs is put into agitator, by weight 1：4 ratio addition water, then passes through
Mixer is mixed mixed fillers with water with the rotating speed of 55r/min, and filler slurries are obtained, standby；
4) by step 3) obtained in filler slurries and step 1) obtained in mixed glue solution mix, while keep 380 DEG C of glue
Heating-up temperature, and filler slurries and mixed glue solution are stirred with the rotating speed of 30r/min in homogenizer so that filler
Slurries are fused in mixed glue solution, standby；
5) by step 4) mixed glue solution after stirring is cooled to 200 DEG C, 30 parts of 1,2-PD of addition, 33 parts of ferrocene,
10 parts of 20 parts of bamboo-carbon fibre and carboxylate, are slowly stirred so that 1,2-PD, two by mixer with the rotating speed of 50r/min
Luxuriant iron, bamboo-carbon fibre, siloxanes and carboxylate and mixed glue solution stir so that the plastic property enhancing of mixed glue solution, standby
With；
6) 9 parts of one butanediol of Isosorbide-5-Nitrae, 9 parts of 1,6 one hexylene glycol, 10 parts of siloxanes, 11 parts of silane coupler and quaternary ammonium salt 20 are taken
Part be added to step 5) obtained in mixed glue solution, be heated to 300 DEG C, and keeping temperature 1 hour so that mixed glue solution with it is above-mentioned
Material hybrid reaction so that the viscosity increase of glue, it is standby；
7) by step 6) obtained in mixed glue solution stand 6 minutes so that mixed glue solution eliminates gas in the presence of siloxanes
Bubble, it is standby.
8) by step 7) obtained in mixed glue solution injected on the mould got ready by casting machine, polyurethane plate is obtained, so
After stand natural cooling, obtain final product.
Embodiment 2
A kind of mounted refrigerating cabinet of high leakproofness, including closed cabinet 1 and YD-550MAX refrigeration units 2, the closing
The bottom middle position of formula cabinet 1 is fixed with fixed brandreth 3, and for mutually being fixed with automobile, the closed cabinet 1 is included outside steel plate
Shell 4, and the polyurethane thermal insulation layer 5 of the inwall of the outer cover of steel plate 4 is arranged on, polyurethane thermal insulation layer 5 is protected by outer cover of steel plate 4,
Insulation is thermally shielded by polyurethane thermal insulation layer 5, the polyurethane thermal insulation layer 5 is fitted fixation with outer cover of steel plate 4, outside the steel plate
The bottom of shell 4 is provided with polyurethane every supporting plate 6, and the polyurethane is fitted fixation, the polyurethane every supporting plate 6 with outer cover of steel plate 4
The chute 7 being parallel to each other is provided with supporting plate 6, the tail end of the closed cabinet 1 is provided with sealing cabinet door 8, the YD-
The clamping of 550MAX refrigerants unit 2 is fixed on the side at the top of closed cabinet 1, and the YD-550MAX refrigerants unit 2 is set
There is cold air import 9.
The polyurethane thermal insulation layer 3 is made up of the raw material of following weight portion, including 110 parts of PPG, isocyanates
90 parts, 60 parts of phosphate, 46 parts of 1,2- propane diols, 45 parts of ferrocene, 36 parts of bamboo-carbon fibre, 28 parts of aluminium powder, 27 parts of potassium hydroxide,
It is 25 parts of nano-calcium carbonate, 16 parts of siloxanes, 16 parts of carboxylate, 15 parts of one butanediol of Isosorbide-5-Nitrae, 15 parts of 1,6 one hexylene glycol, silane coupled
34 parts of 17 parts of agent and quaternary ammonium salt.
A kind of preparation method of polyurethane thermal insulation layer, comprises the following steps：
1) 60 parts of 110 parts of PPG, 90 parts of isocyanates and phosphate are taken to be put into smelting furnace, and are heated to 440 DEG C,
So that PPG, isocyanates and phosphate change rapid fusing at high temperature, mixed glue solution is obtained, it is standby；
2) 28 parts of aluminium powder, the 25 parts of mixing of 27 parts of potassium hydroxide and nano-calcium carbonate are taken, then with the filter screen that filter opening is 50 mesh
Filtering screening is carried out, the powder below 50 mesh is collected, filler is obtained, it is standby；
3) by step 2) filler that stirs is put into agitator, by weight 1：4 ratio addition water, then passes through
Mixer is mixed mixed fillers with water with the rotating speed of 55r/min, and filler slurries are obtained, standby；
4) by step 3) obtained in filler slurries and step 1) obtained in mixed glue solution mix, while keep 440 DEG C of glue
Heating-up temperature, and filler slurries and mixed glue solution are stirred with the rotating speed of 30r/min in homogenizer so that filler
Slurries are fused in mixed glue solution, standby；
5) by step 4) mixed glue solution after stirring is cooled to 200 DEG C, 46 parts of 1,2-PD of addition, 45 parts of ferrocene,
16 parts of 36 parts of bamboo-carbon fibre and carboxylate, are slowly stirred so that 1,2-PD, two by mixer with the rotating speed of 50r/min
Luxuriant iron, bamboo-carbon fibre, siloxanes and carboxylate and mixed glue solution stir so that the plastic property enhancing of mixed glue solution, standby
With；
6) 15 parts of one butanediol of Isosorbide-5-Nitrae, 15 parts of 1,6 one hexylene glycol, 16 parts of siloxanes, 17 parts of silane coupler and quaternary ammonium salt are taken
34 parts are added to step 5) obtained in mixed glue solution, be heated to 300 DEG C, and keeping temperature 2 hours so that mixed glue solution with it is upper
State material hybrid reaction so that the viscosity increase of glue, it is standby；
7) by step 6) obtained in mixed glue solution stand 10 minutes so that mixed glue solution eliminates gas in the presence of siloxanes
Bubble, it is standby.
8) by step 7) obtained in mixed glue solution injected on the mould got ready by casting machine, polyurethane plate is obtained, so
After stand natural cooling, obtain final product.
Embodiment 3
A kind of mounted refrigerating cabinet of high leakproofness, including closed cabinet 1 and YD-550MAX refrigeration units 2, the closing
The bottom middle position of formula cabinet 1 is fixed with fixed brandreth 3, and for mutually being fixed with automobile, the closed cabinet 1 is included outside steel plate
Shell 4, and the polyurethane thermal insulation layer 5 of the inwall of the outer cover of steel plate 4 is arranged on, polyurethane thermal insulation layer 5 is protected by outer cover of steel plate 4,
Insulation is thermally shielded by polyurethane thermal insulation layer 5, the polyurethane thermal insulation layer 5 is fitted fixation with outer cover of steel plate 4, outside the steel plate
The bottom of shell 4 is provided with polyurethane every supporting plate 6, and the polyurethane is fitted fixation, the polyurethane every supporting plate 6 with outer cover of steel plate 4
The chute 7 being parallel to each other is provided with supporting plate 6, the tail end of the closed cabinet 1 is provided with sealing cabinet door 8, the YD-
The clamping of 550MAX refrigerants unit 2 is fixed on the side at the top of closed cabinet 1, and the YD-550MAX refrigerants unit 2 is set
There is cold air import 9.
The polyurethane thermal insulation layer 3 is made up of the raw material of following weight portion, including 135 parts of PPG, isocyanates
80 parts, 50 parts of phosphate, 38 parts of 1,2- propane diols, 39 parts of ferrocene, 28 parts of bamboo-carbon fibre, 24 parts of aluminium powder, 23 parts of potassium hydroxide,
It is 20 parts of nano-calcium carbonate, 13 parts of siloxanes, 13 parts of carboxylate, 12 parts of one butanediol of Isosorbide-5-Nitrae, 12 parts of 1,6 one hexylene glycol, silane coupled
27 parts of 14 parts of agent and quaternary ammonium salt.
A kind of preparation method of polyurethane thermal insulation layer, comprises the following steps：
1) 50 parts of 135 parts of PPG, 80 parts of isocyanates and phosphate are taken to be put into smelting furnace, and are heated to 410 DEG C,
So that PPG, isocyanates and phosphate change rapid fusing at high temperature, mixed glue solution is obtained, it is standby；
2) 24 parts of aluminium powder, the 20 parts of mixing of 23 parts of potassium hydroxide and nano-calcium carbonate are taken, then with the filter screen that filter opening is 50 mesh
Filtering screening is carried out, the powder below 50 mesh is collected, filler is obtained, it is standby；
3) by step 2) filler that stirs is put into agitator, by weight 1：4 ratio addition water, then passes through
Mixer is mixed mixed fillers with water with the rotating speed of 55r/min, and filler slurries are obtained, standby；
4) by step 3) obtained in filler slurries and step 1) obtained in mixed glue solution mix, while keep 410 DEG C of glue
Heating-up temperature, and filler slurries and mixed glue solution are stirred with the rotating speed of 30r/min in homogenizer so that filler
Slurries are fused in mixed glue solution, standby；
5) by step 4) mixed glue solution after stirring is cooled to 200 DEG C, 38 parts of 1,2-PD of addition, 39 parts of ferrocene,
13 parts of 28 parts of bamboo-carbon fibre and carboxylate, are slowly stirred so that 1,2-PD, two by mixer with the rotating speed of 50r/min
Luxuriant iron, bamboo-carbon fibre, siloxanes and carboxylate and mixed glue solution stir so that the plastic property enhancing of mixed glue solution, standby
With；
6) 12 parts of one butanediol of Isosorbide-5-Nitrae, 12 parts of 1,6 one hexylene glycol, 13 parts of siloxanes, 14 parts of silane coupler and quaternary ammonium salt are taken
27 parts are added to step 5) obtained in mixed glue solution, be heated to 300 DEG C, and keeping temperature 1.5 hours so that mixed glue solution with
Above-mentioned material hybrid reaction so that the viscosity increase of glue, it is standby；
7) by step 6) obtained in mixed glue solution stand 8 minutes so that mixed glue solution eliminates gas in the presence of siloxanes
Bubble, it is standby.
8) by step 7) obtained in mixed glue solution injected on the mould got ready by casting machine, polyurethane plate is obtained, so
After stand natural cooling, obtain final product.
Experimental example
Experimental subjects：Using common foaming layer as a control group, using special polyurethane thermal insulation layer as control
Group two, the polyurethane thermal insulation layer of the application is used as experimental group.
Requirement of experiment：Wherein three groups thickness of material, sizes are all consistent, by water test, heat insulation test and weight
The experimental technique of power extruding test is tested experimental subjects, and obtains data below, and in this experimental example, heat insulation test is
By the refrigerator that experimental subjects closure temperature is 0 DEG C, and thermometer detection temperature is installed in experimental subjects, the time is 1 hour.
Concrete outcome is as shown in the table：
With reference to upper table, the data of contrast three groups of different experimental subjects gained under three kinds of different experimental techniques, this hair
A kind of bright polyurethane thermal insulation layer embodies intensity big, heavy under the experiment of water test, heat insulation test and gravity extruding test
The characteristics of measuring light and good heat insulation and be difficult infiltration.
The technology of the present invention effect major embodiment is in the following areas：Polyurethane thermal insulation layer, Neng Gouyan are protected by outer cover of steel plate
The service life of polyurethane thermal insulation layer long, while the effect of heat insulation of refrigerator can be improved by polyurethane thermal insulation layer, while logical
Cross PPG, isocyanates, phosphate, 1,2- propane diols, ferrocene, bamboo-carbon fibre, aluminium powder, potassium hydroxide, nano-sized carbon
Sour calcium, siloxanes, carboxylate, the butanediol of Isosorbide-5-Nitrae one, 1,6 one hexylene glycols, silane coupler and polyurethane obtained in quaternary ammonium salt are heat-insulated
Layer has big intensity, good heat preservation performance and lightweight advantage.
Certainly, it is more than representative instance of the invention, in addition, the present invention can also have other various specific implementations
The technical scheme that mode, all use equivalents or equivalent transformation are formed, all falls within the scope of protection of present invention.
Claims (5)
1. the mounted refrigerating cabinet of a kind of high leakproofness, it is characterised in that：It is described closed including closed cabinet and refrigeration unit
Bottom of cabinet bulk middle position is fixed with fixed brandreth, and the closed cabinet includes outer cover of steel plate, and is arranged on outside the steel plate
The polyurethane thermal insulation layer of shell inwall, the polyurethane thermal insulation layer is fitted fixation with outer cover of steel plate, and the bottom of the outer cover of steel plate sets
Polyurethane is equipped with every supporting plate, the polyurethane is fitted fixation every supporting plate with outer cover of steel plate, and phase is provided with the polyurethane supporting plate
Mutual parallel chute, the tail end of the closed cabinet is provided with sealing cabinet door, and the refrigerant unit clamping is fixed on closing
Side at the top of formula cabinet, the refrigerant unit is provided with cold air import.
2. the mounted refrigerating cabinet of a kind of high leakproofness as claimed in claim 1, it is characterised in that：The polyurethane thermal insulation layer by
The raw material of following weight portion is made, including PPG 110-160 parts, isocyanates 70-90 parts, phosphate 40-60 parts, 1,
30-46 parts of 2- propane diols, ferrocene 33-45 parts, bamboo-carbon fibre 20-36 parts, aluminium powder 20-28 parts, potassium hydroxide 19-27 parts, receive
Rice 15-25 parts of calcium carbonate, siloxanes 10-16 parts, carboxylate 10-16 parts, butanediol 9-15 parts of Isosorbide-5-Nitrae one, 1,6 one hexylene glycol 9-15
Part, silane coupler 11-17 parts and quaternary ammonium salt 20-34 parts.
3. the mounted refrigerating cabinet of a kind of high leakproofness as claimed in claim 2, it is characterised in that：The polyurethane thermal insulation layer by
The raw material of following weight portion is made, including 160 parts of PPG, 70 parts of isocyanates, 40 parts of phosphate, 1,2-PD 30
Part, 33 parts of ferrocene, 20 parts of bamboo-carbon fibre, 20 parts of aluminium powder, 19 parts of potassium hydroxide, 15 parts of nano-calcium carbonate, 10 parts of siloxanes, carboxylic
20 parts of 10 parts of acid esters, 9 parts of one butanediol of Isosorbide-5-Nitrae, 9 parts of 1,6 one hexylene glycol, 11 parts of silane coupler and quaternary ammonium salt.
4. the mounted refrigerating cabinet of a kind of high leakproofness as claimed in claim 2, it is characterised in that：The polyurethane thermal insulation layer by
The raw material of following weight portion is made, including 110 parts of PPG, 90 parts of isocyanates, 60 parts of phosphate, 1,2-PD 46
Part, 45 parts of ferrocene, 36 parts of bamboo-carbon fibre, 28 parts of aluminium powder, 27 parts of potassium hydroxide, 25 parts of nano-calcium carbonate, 16 parts of siloxanes, carboxylic
34 parts of 16 parts of acid esters, 15 parts of one butanediol of Isosorbide-5-Nitrae, 15 parts of 1,6 one hexylene glycol, 17 parts of silane coupler and quaternary ammonium salt.
5. the mounted refrigerating cabinet of a kind of high leakproofness as claimed in claim 2, it is characterised in that：The polyurethane thermal insulation layer by
The raw material of following weight portion is made, including 135 parts of PPG, 80 parts of isocyanates, 50 parts of phosphate, 1,2-PD 38
Part, 39 parts of ferrocene, 28 parts of bamboo-carbon fibre, 24 parts of aluminium powder, 23 parts of potassium hydroxide, 20 parts of nano-calcium carbonate, 13 parts of siloxanes, carboxylic
27 parts of 13 parts of acid esters, 12 parts of one butanediol of Isosorbide-5-Nitrae, 12 parts of 1,6 one hexylene glycol, 14 parts of silane coupler and quaternary ammonium salt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611158443.9A CN106750123A (en) | 2016-12-15 | 2016-12-15 | A kind of mounted refrigerating cabinet of high leakproofness |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611158443.9A CN106750123A (en) | 2016-12-15 | 2016-12-15 | A kind of mounted refrigerating cabinet of high leakproofness |
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| CN106750123A true CN106750123A (en) | 2017-05-31 |
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| CN201611158443.9A Pending CN106750123A (en) | 2016-12-15 | 2016-12-15 | A kind of mounted refrigerating cabinet of high leakproofness |
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Application publication date: 20170531 |