KR20140074164A - Method for making polyurethane foaming material - Google Patents

Method for making polyurethane foaming material Download PDF

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Publication number
KR20140074164A
KR20140074164A KR1020130059485A KR20130059485A KR20140074164A KR 20140074164 A KR20140074164 A KR 20140074164A KR 1020130059485 A KR1020130059485 A KR 1020130059485A KR 20130059485 A KR20130059485 A KR 20130059485A KR 20140074164 A KR20140074164 A KR 20140074164A
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KR
South Korea
Prior art keywords
raw material
hydroxyl compound
pressurizing
gas
containing hydroxyl
Prior art date
Application number
KR1020130059485A
Other languages
Korean (ko)
Inventor
박희대
주융문
Original Assignee
박희대
주융문
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from TW101222457U external-priority patent/TWM463648U/en
Priority claimed from TW101143289A external-priority patent/TWI466909B/en
Application filed by 박희대, 주융문 filed Critical 박희대
Publication of KR20140074164A publication Critical patent/KR20140074164A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7433—Plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/801—Valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/60—Measuring, controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

An environmentally friendly PU foaming apparatus and method thereof according to the present invention includes a raw material injecting step, an emulsifying step, and a foaming step. First, a hydroxyl compound containing OH is mixed with a harmless gas to emulsify To lower the specific gravity of the OH-containing hydroxyl group, and then the OH-containing hydroxyl group and the NCO-containing isocyanate polymer are mixed in an atmospheric environment to form a mixture, and the harmless gas escapes from the mixture Thereby forming a PU foam by causing a foaming action to occur in the mixture. Accordingly, the present invention can perform PU foaming immediately without using HCFC and water, thereby achieving environmental protection effect, preventing generation of hydrolysis reaction, and ensuring the quality of PU foam .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an environmentally friendly polyurethane foaming apparatus,

The present invention relates to a polyurethane foaming apparatus and a method thereof, and more particularly, to an environmentally friendly polyurethane foaming apparatus capable of foaming polyurethane foams without using hydrogen fluoride carbon (HCFC) and water will be.

The impact of the greenhouse effect has caused many disasters such as super-strong typhoons, heavy rain, and heavy snow all over the world, all of which are devastating to property and safety. The main reason for this is the fact that industrial development is so rapid that carbon dioxide and various pollutants are released in large quantities.

Of the various industrial pollutants, the pollutants generated in the polyurethane foaming industry, which are produced for use as sneakers, are even more serious. This is because the polyurethane (hereinafter referred to as "PU") foaming industry must use hydrogen fluorocarbons (hereinafter referred to as "HCFCs") as foaming agents when producing PU foams which can severely degrade the atmosphere Because. In view of this, the current PU foaming industry uses water as blowing agent instead of HCFC in order to reduce environmental pollution.

However, in the process of observing the PU foaming industry in the long term, the present inventors have found that when water is used as a blowing agent, the durability of the PU foam produced by rapid hydrolysis of raw materials is greatly deteriorated. Therefore, the present inventor has made the present invention upon considering that there is a need to provide an environmentally friendly PU foaming apparatus and method that can perform PU foaming immediately without observing the aforementioned drawbacks, without using HCFC and water.

It is an object of the present invention to provide an environmentally friendly PU foaming apparatus and method which can perform PU foaming immediately without using HCFC and water.

In order to achieve the above object, the present invention provides an environmentally friendly PU foaming apparatus and method thereof, comprising: preparing a raw material preparation step: preparing a hydroxyl compound containing OH, an isocyanate polymer containing NCO and a harmless gas; And emulsifying: mixing the OH-containing hydroxyl compound with a harmless gas to emulsify the OH-containing hydroxyl compound and lowering the specific gravity of the OH-containing hydroxyl compound; Foaming step: mixing the OH-containing hydroxyl compound and the NCO-containing isocyanate polymer after emulsification in an atmospheric environment to form a mixture, and when the harmless gas leaves the mixture, ≪ / RTI > to form a PU foam.

The eco-friendly polyurethane foaming apparatus and the method of the present invention further include a foam injector including an injector body to which an NCO material container and an OH material container are connected; A gas supply unit having a gas supply port for supplying a harmless gas; A raw material inlet port, a gas inlet port and a raw material outlet port are provided on the circumferential side, the OH raw material container is connected to the raw material inlet port, the gas supply port is connected to the gas inlet port, And the screw to which the motor is connected in the mixing tank further includes a mixing unit.

The eco-friendly foaming apparatus and the method of the present invention are characterized in that a hydroxyl compound containing OH is first mixed with the harmless gas to cause an emulsification reaction with a hydroxyl compound containing OH to increase the specific gravity of the hydroxyl compound containing OH And then said OH-containing hydroxyl compound and said NCO-containing isocyanate polymer are mixed in an atmospheric environment to form said mixture and said nontoxic gas is released from said mixture, To form a foam. Accordingly, the environmentally friendly PU foaming apparatus and method of the present invention can perform PU foaming immediately without using HCFC and water, thereby achieving an environmental protection effect and preventing occurrence of a hydrolysis reaction, The quality of the PU foam can be assured.

1 is a block diagram showing an eco-friendly polyurethane foaming method according to a first preferred embodiment of the present invention.
Fig. 2 is a connection diagram showing the environmentally friendly polyurethane foaming apparatus shown in Fig. 1. Fig.
3 is a block diagram showing an eco-friendly polyurethane foaming method according to a second preferred embodiment of the present invention.
Fig. 4 is a connection diagram showing the environmentally friendly polyurethane foaming device shown in Fig. 3; Fig.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

FIG. 1 and FIG. 2 are views showing an environmentally friendly PU foaming apparatus and method according to a first preferred embodiment of the present invention, wherein the environmentally friendly PU foaming apparatus and method include the following steps.

Referring to FIGS. 1 and 2, a raw material preparing step: preparing a hydroxyl compound containing OH, an isocyanate polymer containing NCO, and a harmless gas, the raw material preparing step being carried out through a foaming injector 10. The foam injector 10 has an injector body 11 which can be connected to the NCO feed 13 via an NCO pump 12 to store the NCO-containing isocyanate polymer , And is connected to the OH material feeder 15 through the OH pump 14 to store the OH-containing hydroxyl compound. The initial specific gravity of the OH-containing hydroxyl compound is between 1 and 1.2 g / cm < 2 & gt ;. It is necessary to explain that the foam injector 10 is a device commonly used in conventional PU foam production, and therefore, a detailed description of its structure is omitted. In addition, the harmless gas is supplied through the gas supply unit 20, and the gas supply unit 20 has a gas supply port 21 through which the harmless gas can be delivered. The harmless gas is selected from one of gas, nitrogen gas and air.

The step of emulsifying is a step of mixing the OH-containing hydroxyl compound with a harmless gas to emulsify the OH-containing hydroxyl compound and lowering the specific gravity of the OH-containing hydroxyl compound. In this embodiment, The specific gravity of the contained hydroxyl compound was reduced to 0.1 to 0.5 g / cm < 2 & gt ;. Wherein the emulsifying step is carried out through the mixing unit (30). The mixing unit 30 has a mixing chamber 31 and a raw material inlet 311, a gas inlet 312 and a raw material outlet 313 are provided on the periphery of the mixing chamber 31. The raw material injection port 311 is connected to the OH raw material bottle 15 so that a hydroxyl compound containing OH can be injected. The gas injection port 312 is connected to the gas injection port 21). In addition, a screw 32 is further provided in the mixing tank 31, and the screw 33 is connected to the motor 33 so that the oxic compound containing OH and the harmless gas can be mixed.

Pressurization step: pressurizing the hydroxyl compound containing OH after the emulsification to prevent the harmless gas from becoming acid in the OH-containing hydroxyl compound, the pressurization step is not a necessary step in the present invention, But the practice only enumerates the preferred embodiments. If the specific gravity of the OH-containing hydroxyl compound is set to 0.1 g / cm 2 , the pressing pressure is set to 5 kg / cm 2 , and if the specific gravity of the hydroxyl compound containing 0 H is set to 0.5 g / cm 2 , And the pressing pressure is set to 1 kg / cm < 2 & gt ;. Further, the pressing step is carried out through the pressing unit 40, and the pressing unit 40 has the pressurizing cylinder 41. The pressurizing cylinder 41 has an inlet 411 and an outlet 412. The inlet 411 is connected to the raw material outlet 313 and the OH-containing hydroxyl compound after emulsification is introduced into the inlet 411 To the pressurizing cylinder 41 and stored in the pressurizing cylinder 41. The outlet 412 is connected to the OH raw material container 15 and a pressurizing system 42 is further provided for pressurizing the pressurizing container 41 in the pressurizing container 41. Further, in the pressing step, the specific gravity of the OH-containing hydroxyl compound is detected through the detection unit (50). The detection unit 50 is provided with a raw material injection pipe 51 connected to the pressure pipe 41 and a detection pump 52 connected to the other end of the raw material injection pipe 51. A hydrometer 53 is connected to the detection pump 52 and a raw material discharge pipe 54 is connected to the hydrometer 53 and the pressurization pipe 41 is connected to the other end of the raw material discharge pipe 54.

Foaming step: mixing the OH-containing hydroxyl compound and the NCO-containing isocyanate polymer after emulsification in an atmospheric environment to form a mixture, and when the harmless gas leaves the mixture, To form the PU foam. In this embodiment, the OH-containing hydroxyl compound after the pressurization is sent to the OH raw material bottle 15 through the outlet 412, and the OH-containing hydroxyl compound and The isocyanate polymer containing the NCO was allowed to perform the foaming step through the injector main body 11. [

In order to further understand the structural features of the present invention, the operation technology means, and the effects to be achieved, the present invention will be described in further detail below, and the present invention is deemed to be more in-depth and concretely understood.

1 and 2, the present embodiment further includes a first pump 61 connected between the OH raw material container 15 and the raw material inlet 311, and a second pump 61 connected between the outlet 412 and the OH And a second pump 62 connected between the raw material containers 15 and further includes a pump unit 60 provided between the OH raw material container 15 and the raw material inlet 311, And a valve (70). Accordingly, the user first inserts the NCO-containing isocyanate polymer into the NCO raw material container 13, stores the OH-containing hydroxyl compound in the OH raw material container 15, and then transfers the control valve 70 The OH raw material containing OH in the OH material feeder 15 is transferred from the material inlet 311 into the mixing bath 31 and then is returned to the mixing chamber 31. At the same time, A harmless gas supplied by the gas supply unit 20 is injected from the gas injection port 312 into the mixing chamber 31 and the screw 32 is rotated by the motor 33 so that the OH- The specific gravity of the OH-containing hydroxyl compound is lowered by causing an emulsification reaction to the OH-containing hydroxyl compound by mixing the hydroxyl compound and the harmless gas, and the OH-containing hydroxyl compound after emulsification is mixed with the raw material outlet 313 ), Is passed through the inlet 411 and is transferred into the pressurizing cylinder 41 and the pressurizing cylinder 41 is pressurized through the pressurizing system 42 so that the harmless gas is oxidized in the OH- prevent. In addition, in the pressurizing process, the OH-containing hydroxyl compound is transferred to the hydrometer 53 through the raw material injection pipe 51 by the detection pump 52, Is returned to the cylinder 41, and the specific gravity value of the OH-containing hydroxyl compound is detected through the hydrometer 53. After confirming that the specific gravity value of the OH-containing hydroxyl compound has reached a predetermined value, the second pump 62 is operated to transfer the OH-containing hydroxyl compound after the pressurization into the OH raw material container 15 , The control valve (70) is closed to prevent the OH-containing hydroxyl compound from flowing into the mixing unit (30), and finally the OH pump (14) is activated to convert the OH- Is transferred into the injector main body (11), and the NCO pump (12) is activated to transfer the NCO-containing isocyanate polymer into the injector main body (11), whereby the OH-containing hydroxyl compound and the NCO- When the polymer is mixed in an atmospheric environment to make a mixture, when the harmless gas leaves the mixture, the mixture is subjected to a foaming action, .

Therefore, the environmentally friendly PU foaming method of the present invention can perform PU foaming without using HCFC and water. Therefore, not only the environmental protection effect can be achieved but also the hydrolysis reaction can be prevented from occurring, thereby ensuring the quality of the PU foam, and since the present invention can be applied directly to the conventional foam injector, The value is very high.

Referring now to FIGS. 3 and 4, a block diagram of a second preferred embodiment of the present invention and a connection diagram of the apparatus, wherein the environmentally friendly PU foaming method is different from the first preferred embodiment described above, Further comprising a circulation step between the foaming step and the OH-containing hydroxyl compound repeatedly performing the emulsification step and the pressurization step a plurality of times. And further includes a three-way valve 80 for the above step. Both ends of the three-way valve 80 are connected to the outlet 412 and the OH raw material container 15, respectively, and the third end is connected to the raw material inlet 311. By allowing the OH-containing hydroxyl compound to pass through the mixing unit 30 and the pressurizing unit 40 repeatedly, it is possible not only to emulsify the OH-containing hydroxyl compound evenly, Since the specific gravity decreases once each time the hydroxyl compound passes through the mixing unit 30, the specific gravity of the OH-containing hydroxyl compound can be gradually lowered.

The features of the invention and the anticipated effects achievable are as follows:

The method for foaming environmentally friendly PU according to the present invention comprises first mixing a hydroxyl compound containing OH with the harmless gas to emulsify the OH-containing hydroxyl compound to lower the specific gravity of the OH-containing hydroxyl compound, The OH-containing hydroxyl compound and the NCO-containing isocyanate polymer are mixed in an atmospheric environment to form a mixture, and when the harmless gas is released from the mixture, a foaming action is caused in the mixture to form a PU foam do. Therefore, the environmentally friendly PU foaming method of the present invention can perform the PU foaming immediately without using HCFC and water, thereby achieving the environmental protection effect and also preventing the hydrolysis reaction from occurring, Quality can be guaranteed, and since the present invention can be applied directly to a conventional foam injector, the environment-friendly type and economic value are very high.

In summary, the present invention has excellent progressive practicality among homogeneous products, and at the same time, the technical data related to such structures at home and abroad have not found the same conventional structure before. Therefore, since the present invention surely includes the invention patent requirements, the patent application is filed based on the law.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

10: foaming injector 11: injector main body
12: NCO pump 13: NCO raw material container
14: OH pump 15: OH raw material container
20: gas supply unit 21: gas supply port
30: mixing unit 31: mixing tank
32: Screw 33: Motor
40: pressure unit 41: pressure cylinder
42: pressure system 50: detection unit
51: raw material injection pipe 52: detection pump
53: Hydrometer 54:
60: pump unit 61: first pump
62: second pump 70: control valve
80: Three-way valve 311: Feed inlet
312: gas inlet 313: material outlet

Claims (16)

A foam injector having an injector body to which an NCO raw material container and an OH raw material container are connected;
A gas supply unit having a gas supply for supplying a harmless gas;
A raw material inlet port, a gas inlet port and a raw material outlet port are provided on the circumferential side, the OH raw material container is connected to the raw material inlet port, the gas supply port is connected to the gas inlet port, And a mixing unit provided with a mixing tank to which the motor is connected, and further comprising a mixing unit in which a screw to which the motor is connected is further provided in the mixing tank.
The method according to claim 1,
And a pressurizing container having an inlet and an outlet, wherein the inlet is connected to the raw material discharge port, the outlet is connected to the OH raw material container, and the pressurizing chamber is pressurized in the pressurizing container, Further comprising a pressure unit to which a system is further installed.
3. The method of claim 2,
A raw material feed pipe connected to the pressurizing pipe, a detection pump connected to the other end of the raw material feed pipe, a hydrometer connected to the detection pump, a raw material discharge pipe connected to the hydrometer, Further comprising a detection unit to which said pressurizing cylinder is connected.
3. The method of claim 2,
Further comprising a pump unit having a first pump connected between the OH feedstock and the raw material inlet, and a second pump connected between the outlet and the OH feedstock cylinder, characterized by further comprising an eco-friendly polyurethane foam Device.
The method according to claim 1,
Further comprising a control valve installed between the raw material inlet and the OH material feed passage.
3. The method of claim 2,
Further comprising a three-way valve having both ends connected to the outlet and the OH material reservoir, respectively, and the third end being connected to the raw material injection port.
The method according to claim 1,
Wherein the harmless gas is selected from one of gas, nitrogen gas and air.
Preparing a raw material preparation step: preparing a hydroxyl compound containing OH, an NCO-containing isocyanate polymer, and a harmless gas;
Emulsifying: mixing the OH-containing hydroxyl compound with a harmless gas to emulsify the OH-containing hydroxyl compound and lowering the specific gravity of the OH-containing hydroxyl compound;
Foaming step: mixing the OH-containing hydroxyl compound and the NCO-containing isocyanate polymer after emulsification in an atmospheric environment to form a mixture, and when the harmless gas leaves the mixture, To form a PU foam. ≪ RTI ID = 0.0 > 11. < / RTI >
9. The method of claim 8,
Wherein the harmless gas is selected from one of gas, nitrogen gas and air.
9. The method of claim 8,
In the raw material preparation step, the initial specific gravity of the OH-containing hydroxyl compound is between 1 and 1.2 g / cm 2 , and in the emulsification step, the specific gravity of the OH-containing hydroxyl compound is 0.1 to 0.5 g / cm 2 By weight based on the weight of the polyurethane foam.
9. The method of claim 8,
Further comprising a pressurizing step for pressurizing the OH-containing hydroxyl compound after emulsification between the emulsification step and the foaming step to prevent the harmless gas from becoming an acid in the OH-containing hydroxyl compound A method of foaming an environmentally friendly polyurethane.
12. The method of claim 11,
If the specific gravity of the OH-containing hydroxyl compound is set to 0.1 g / cm 2 , the pressing pressure is set to 5 kg / cm 2 , and if the specific gravity of the hydroxyl compound containing OH is set to 0.5 g / cm 2 , The pressure is set to 1 kg / cm < 2 >.
12. The method of claim 11,
Further comprising a circulation step of repeating the emulsification step and the pressurization step a plurality of times between the pressurization step and the foaming step, wherein the OH-containing hydroxyl compound is repeatedly subjected to the emulsification step and the pressurization step.
9. The method of claim 8,
Wherein the emulsifying step is carried out through a mixing unit, and the mixing unit includes a mixing tank, a raw material inlet for injecting a hydroxyl compound containing OH into the periphery of the mixing tank, a gas inlet for injecting the harmless gas, And a raw material discharge port, and further, a screw is further installed in the mixing tank, and a motor is connected to the screw.
12. The method of claim 11,
Wherein the pressurizing step is carried out through a pressurizing unit, wherein the pressurizing unit is provided with a pressurizing cylinder capable of containing an OH-containing hydroxyl compound after being subjected to emulsification, and a pressurizing unit capable of pressurizing the pressurizing cylinder in the pressurizing cylinder And a system is installed on the surface of the polyurethane foam.
16. The method of claim 15,
Wherein the detection unit detects the specific gravity of the OH-containing aquatic compound through the detection unit in the pressurization step, and the detection unit is provided with a raw material injection pipe connected to the pressurization pipe, and a detection pump is connected to the other end of the raw material injection pipe Wherein a hydrometer is connected to the detection pump, a raw material discharge pipe is connected to the hydrometer, and the other end of the raw material discharge pipe is again connected to the pressure pipe.
KR1020130059485A 2012-11-20 2013-05-27 Method for making polyurethane foaming material KR20140074164A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
TW101143289 2012-11-20
TW101222457U TWM463648U (en) 2012-11-20 2012-11-20 Eco-friendly PU foaming device
TW101143289A TWI466909B (en) 2012-11-20 2012-11-20 Environmentally friendly PU foaming method
TW101222457 2012-11-20

Publications (1)

Publication Number Publication Date
KR20140074164A true KR20140074164A (en) 2014-06-17

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KR1020130059485A KR20140074164A (en) 2012-11-20 2013-05-27 Method for making polyurethane foaming material

Country Status (1)

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KR (1) KR20140074164A (en)

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