CN109503792A - A kind of polyurethane foam standard EMU operation bench mask and preparation method thereof - Google Patents
A kind of polyurethane foam standard EMU operation bench mask and preparation method thereof Download PDFInfo
- Publication number
- CN109503792A CN109503792A CN201811322542.5A CN201811322542A CN109503792A CN 109503792 A CN109503792 A CN 109503792A CN 201811322542 A CN201811322542 A CN 201811322542A CN 109503792 A CN109503792 A CN 109503792A
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- parts
- operation bench
- reinforcing fiber
- polyurethane foam
- glue
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- 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
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polyurethanes Or Polyureas (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a kind of polyurethane foam standard EMU operation bench masks and preparation method thereof, belong to technical field of polymer composite materials, reinforcing fiber assisting flame-resistant as fire retardant and joined using ammonium polyphosphate, ammonium polyphosphate has certain fire retardancy and can inhibit smoke and low, and reinforcing fiber is due to fusing point with higher, burning point and elevated temperature strength, the residual intensity that suitable reinforcing fiber is added when can increase material combustion is to reduce the char length of material, the addition of reinforcing fiber simultaneously also can solve the more caused intensity decline of fire retardant in material and warpage equidimension stability problem, glue is difficult to wetting fibre and generates the technical issues of selective filter effect causes foaming agent mixing unevenly product strength to be caused largely to decline under the conditions of solving prior art, realize standard motor-car Tensile strength, bending strength have met or exceeded the requirement of EMU operation bench cover plate while group operation bench mask anti-flammability is up to standard.
Description
Technical field
The present invention relates to technical field of polymer composite materials more particularly to a kind of polyurethane foam standard EMU to manipulate
Table top cover and preparation method thereof.
Background technique
Standard EMU console mask needs to have high flame resistance, environmental protection, high intensity, high-dimensional stability, lightweight
Etc. characteristics, the requirement index to material is preferable, the main indicator that some producers propose are as follows: 700 ± 50Kg/m3 of density is stretched
Intensity >=18MPa, bending strength >=16MPa, flame retardant property reach DIN5510-2 S4 ST2 SR2 grade.But tradition foaming
Material its tensile strength, bending strength decline in the case where improving flame retardant property to qualification is obvious, it is difficult to reach requirement, and its
Dimensional stability is very poor, and buckling deformation easily occurs in routine use.
Wherein, existing foamed material is stretched when reaching the fire retardancy of DIN5510-2 S4 ST2 SR2 grade
And bending strength only has 10 MPa or so, moreover, when reaching the fire retardancy of DIN5510-2 S4 ST2 SR2 grade,
Dimensional stability is poor, and biggish buckling deformation can occur for relatively thin plate in use, and it is dynamic to be far from satisfying standard
The requirement of vehicle group console mask.
Moreover, existing standard EMU console mask manufacture craft is to be pre-placed reinforcing fiber in a mold again
Foaming agent (glue) is injected in mold, foaming agent is mixed and foamed with reinforcing fiber in a mold.But due to foaming agent
Its higher added fire retardant of fire retardancy it is also more, foaming agent is excessively sticky to be difficult to wetting fibre, and fiber is to foaming agent
It causes selective filter effect that foaming agent mixing is caused unevenly intensity to be caused largely to decline, eventually leads to the manipulation of standard EMU
It is high that table top cover makes failure rate, it would therefore be highly desirable to develop a kind of polyurethane foam standard EMU operation bench mask and its preparation
Method, realization meet standard all index requests of EMU operation bench mask as the task of top priority.
Summary of the invention
The present invention provides a kind of polyurethane foam standard EMU operation bench mask and preparation method thereof, it is intended to solve existing
Glue is difficult to wetting fibre under process conditions and generating selective filter effect causes foaming agent mixing unevenly to cause product strong
The technical issues of degree largely declines realizes that tensile strength while standard EMU operation bench mask anti-flammability is up to standard, bending are strong
Degree has met or exceeded the requirement of EMU operation bench cover plate.
Specific technical solution provided by the invention is as follows:
A kind of polyurethane foam standard EMU operation bench mask provided by the invention is by polyurethane foam using as following formula
Preparation, it is described formula include following parts by weight raw material: 70 ~ 120 parts of combined polyether, 70 ~ 120 parts of isocyanates,
40 ~ 60 parts of reinforcing fiber, 40 ~ 80 parts of ammonium polyphosphate, 4 ~ 10 parts of meteorological silica and appropriate amount of purified water.
Optionally, the standard EMU operation bench mask has the fire-retardant energy of DIN5510-2 S4 ST2 SR2 grade
Power.
On the other hand, the present invention provides a kind of preparation method of polyurethane foam standard EMU operation bench mask, described
Preparation method includes:
It is the pure water of 70 ~ 120 parts of combined polyether, 40 ~ 80 parts of ammonium polyphosphate and 1200 ~ 1500ppm by parts by weight
In 25 DEG C ± 5 DEG C of environment, is mixed 1 minute using electric mixer with 1000 revs/min of revolving speed, used after mixing
Negative pressure deaerator stands deaeration in 5 minutes under the negative pressure of -0.1Mpa；
The material mixed is continued into the isocyanates with 70 ~ 120 parts in 25 DEG C ± 5 DEG C of environment, uses electric mixer
It is mixed 1 minute with 1000 revs/min of revolving speed, stands 5 under the negative pressure of -0.1Mpa using negative pressure deaerator after mixing
Minute deaeration；
The solution mixed is divided into 2 parts, be mixed into 4 ~ 10 parts of meteorological silica in wherein portion and adjusts viscosity
To 800-1200 revs/min；
40 ~ 60 parts of reinforcing fiber immersion is mixed in the glue of meteorological silica 5 minutes, it is ensured that reinforcing fiber is completely by glue
Liquid, which is impregnated with and can grab, is unlikely to tattered；
It is filled with the glue of a small amount of unmixed meteorological silica in a mold, the reinforcing fiber for infiltrating glue is put into mold simultaneously
All remaining glues are injected into mold；
Mold is put into after closed after being heated 24 hours in the oven for be preheated to 80 DEG C, it is dynamic that demoulding obtains polyurethane foam standard
Vehicle group operation bench mask.
Beneficial effects of the present invention are as follows:
The embodiment of the present invention provides a kind of polyurethane foam standard EMU operation bench mask and preparation method thereof, using poly phosphorus
Sour ammonium is as fire retardant and joined reinforcing fiber assisting flame-resistant, and ammonium polyphosphate has certain fire retardancy and can be with
Inhibit smoke and low, and reinforcing fiber adds suitable reinforcing fiber due to fusing point with higher, burning point and elevated temperature strength
Residual intensity when can increase material combustion is to reduce the char length of material, while the addition of reinforcing fiber can also solve
The decline of intensity caused by certainly fire retardant is more in material and warpage equidimension stability problem, solve glue under the conditions of prior art
Liquid is difficult to wetting fibre and generating selective filter effect causes foaming agent mixing unevenly product strength to be caused largely to decline
Technical problem, realize standard EMU operation bench mask anti-flammability it is up to standard while tensile strength, bending strength reach or
It has been more than the requirement of EMU operation bench cover plate.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be made below further detailed
Thin description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Term " includes " and " having " and their any deformation in description and claims of this specification, meaning
Figure be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units
Those of be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes,
The intrinsic other step or units of method, product or equipment.
Hard polyurethane foam in prior art is using isocyanates and polyethers as primary raw material, in foaming agent, catalysis
It under the action of a variety of auxiliary agents such as agent, fire retardant, is mixed by special equipment, through polyphosphazene polymer made of high pressure painting foam-in-place
Close object.
Different from prior art, a kind of polyurethane foam standard EMU operation bench mask provided in an embodiment of the present invention is logical
Polyurethane foam is crossed using preparing as following formula, which includes the raw material of following parts by weight: 70 ~ 120 parts of combination is poly-
Ether, 70 ~ 120 parts of isocyanates, 40 ~ 60 parts of reinforcing fiber, 40 ~ 80 parts of ammonium polyphosphate, 4 ~ 10 parts of meteorological dioxy
SiClx and appropriate amount of purified water.
Exemplary, a kind of composition of raw materials of polyurethane foam standard EMU operation bench mask provided by the invention includes weight
Amount number is 100 parts of combined polyether, 80 parts of isocyanates, 50 parts of reinforcing fiber, 60 parts of ammonium polyphosphate, 8 parts
Meteorological silica and appropriate amount of purified water.Wherein, had using standard EMU operation bench mask prepared by the composition of raw materials
The fire retardancy of DIN5510-2 S4 ST2 SR2 grade.
The embodiment of the present invention provides a kind of polyurethane foam standard EMU operation bench mask, using ammonium polyphosphate conduct
Fire retardant and it joined reinforcing fiber assisting flame-resistant, ammonium polyphosphate has certain fire retardancy and can inhibit smoke
And it is low, and reinforcing fiber, due to fusing point with higher, burning point and elevated temperature strength, adding suitable reinforcing fiber can increase
Residual intensity when material combustion is to reduce the char length of material, while the addition of reinforcing fiber also can solve in material
The decline of intensity caused by fire retardant is more and warpage equidimension stability problem, glue is difficult to soak under the conditions of solving prior art
Profit fiber simultaneously generates the technical issues of selective filter effect causes foaming agent mixing unevenly product strength to be caused largely to decline,
Realize standard EMU operation bench mask anti-flammability it is up to standard while tensile strength, bending strength met or exceeded motor-car
The requirement of group operation bench cover plate.
In addition, it is added to more fire retardant in foaming agent (glue) due in formula provided in an embodiment of the present invention,
Viscosity is higher by much than common foaming agent (glue), needs that reinforcing fiber is first put into mold in traditional foam-injection technique
In carry out injecting glue again, but the foaming agent (glue) that viscosity is excessive is difficult to wetting fibre and generates selective filter effect to cause to foam
Agent mixing unevenly causes product strength largely to decline.In order to solve this problem, the embodiment of the present invention also provides a kind of use
First carry out the work for preparing polyurethane foam standard EMU operation bench mask of injecting glue foaming again using glue sized reinforcing fibres
Process.Specifically, the preparation method includes:
It is the pure water of 70 ~ 120 parts of combined polyether, 40 ~ 80 parts of ammonium polyphosphate and 1200 ~ 1500ppm by parts by weight
In 25 DEG C ± 5 DEG C of environment, is mixed 1 minute using electric mixer with 1000 revs/min of revolving speed, used after mixing
Negative pressure deaerator stands deaeration in 5 minutes under the negative pressure of -0.1Mpa, and (wherein, PPM indicates the solution of 1,000,000 parts of unit masses
In contained solute quality)；
The material mixed is continued into the isocyanates with 70 ~ 120 parts in 25 DEG C ± 5 DEG C of environment, uses electric mixer
It is mixed 1 minute with 1000 revs/min of revolving speed, stands 5 under the negative pressure of -0.1Mpa using negative pressure deaerator after mixing
Minute deaeration；
The solution mixed is divided into 2 parts, be mixed into 4 ~ 10 parts of meteorological silica in wherein portion and adjusts viscosity
To 800-1200 revs/min；
40 ~ 60 parts of reinforcing fiber immersion is mixed in the glue of meteorological silica 5 minutes, it is ensured that reinforcing fiber is completely by glue
Liquid, which is impregnated with and can grab, is unlikely to tattered；
It is filled with the glue of a small amount of unmixed meteorological silica in a mold, the reinforcing fiber for infiltrating glue is put into mold simultaneously
All remaining glues are injected into mold；
Mold is put into after closed after being heated 24 hours in the oven for be preheated to 80 DEG C, it is dynamic that demoulding obtains polyurethane foam standard
Vehicle group operation bench mask.
It, first will enhancing in the method provided in an embodiment of the present invention for preparing polyurethane foam standard EMU operation bench mask
Fiber immersion is mixed in the glue of meteorological silica so that reinforcing fiber is impregnated with by glue completely, will finally infiltrate glue again
Reinforcing fiber is put into mold and by all remaining glue injection mold, is difficult to so as to solve glue under the conditions of prior art
Sized reinforcing fibres simultaneously generate the skill that selective filter effect causes foaming agent mixing unevenly product strength to be caused largely to decline
Art problem, and then avoid the excessive foaming agent of viscosity (glue) from process and be difficult to wetting fibre, it is dynamic to realize standard
Tensile strength, bending strength have met or exceeded EMU operation bench cover plate while vehicle group operation bench mask anti-flammability is up to standard
Requirement.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (3)
1. a kind of polyurethane foam standard EMU operation bench mask, which is characterized in that the standard EMU operation bench mask
By polyurethane foam using preparing as following formula, the formula includes the raw material of following parts by weight: 70 ~ 120 parts of group
Close polyethers, 70 ~ 120 parts of isocyanates, 40 ~ 60 parts of reinforcing fiber, 40 ~ 80 parts of ammonium polyphosphate, 4 ~ 10 parts of meteorology
Silica and appropriate amount of purified water.
2. EMU operation bench mask according to claim 1, which is characterized in that the standard EMU operation bench mask
The fire retardancy for having DIN5510-2 S4 ST2 SR2 grade.
3. a kind of preparation method of polyurethane foam standard EMU operation bench mask, which is characterized in that the preparation method packet
It includes:
It is the pure water of 70 ~ 120 parts of combined polyether, 40 ~ 80 parts of ammonium polyphosphate and 1200 ~ 1500ppm by parts by weight
In 25 DEG C ± 5 DEG C of environment, is mixed 1 minute using electric mixer with 1000 revs/min of revolving speed, used after mixing
Negative pressure deaerator stands deaeration in 5 minutes under the negative pressure of -0.1Mpa；
The material mixed is continued into the isocyanates with 70 ~ 120 parts in 25 DEG C ± 5 DEG C of environment, uses electric mixer
It is mixed 1 minute with 1000 revs/min of revolving speed, stands 5 under the negative pressure of -0.1Mpa using negative pressure deaerator after mixing
Minute deaeration；
The solution mixed is divided into 2 parts, be mixed into 4 ~ 10 parts of meteorological silica in wherein portion and adjusts viscosity
To 800-1200 revs/min；
40 ~ 60 parts of reinforcing fiber immersion is mixed in the glue of meteorological silica 5 minutes, it is ensured that reinforcing fiber is completely by glue
Liquid, which is impregnated with and can grab, is unlikely to tattered；
It is filled with the glue of a small amount of unmixed meteorological silica in a mold, the reinforcing fiber for infiltrating glue is put into mold simultaneously
All remaining glues are injected into mold；
Mold is put into after closed after being heated 24 hours in the oven for be preheated to 80 DEG C, it is dynamic that demoulding obtains polyurethane foam standard
Vehicle group operation bench mask.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322542.5A CN109503792A (en) | 2018-11-08 | 2018-11-08 | A kind of polyurethane foam standard EMU operation bench mask and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811322542.5A CN109503792A (en) | 2018-11-08 | 2018-11-08 | A kind of polyurethane foam standard EMU operation bench mask and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109503792A true CN109503792A (en) | 2019-03-22 |
Family
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| CN201811322542.5A Pending CN109503792A (en) | 2018-11-08 | 2018-11-08 | A kind of polyurethane foam standard EMU operation bench mask and preparation method thereof |
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Application publication date: 20190322 |