CN109810236A - A kind of production method of polyurethane shoe-sole and urethane raw for this method - Google Patents
A kind of production method of polyurethane shoe-sole and urethane raw for this method Download PDFInfo
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- CN109810236A CN109810236A CN201811108410.2A CN201811108410A CN109810236A CN 109810236 A CN109810236 A CN 109810236A CN 201811108410 A CN201811108410 A CN 201811108410A CN 109810236 A CN109810236 A CN 109810236A
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Abstract
The present invention relates to a kind of production method of polyurethane shoe-sole and it can be used for urethane raw and the preparation of the production method.The following steps are included: A: cleaning can closed type mold, mold is preheated to 50-80 DEG C, Guan Bi mould；B: it is evacuated to -0.1Mpa to mold inner-cavity, and keeps mold inner-cavity air pressure in the vacuum state of setting；C: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, and to be solidified, mold is kept the temperature at 50-80 DEG C；D: after solidification, opening mold, take out molding polyurethane shoe-sole, and placing 6-8 hours physical property at normal temperature can reach requirement, and deburring obtains the polyurethane shoe-sole finished product of final products.Sole is made using the method for the present invention, process conditions are simple, and production temperature is low, and high production efficiency, production process does not have volatile materials generation.The indsole of sole and outsole are integrally formed, and are not required to be bonded with glue between outsole and indsole, are firmly combined, are unlikely to deform after sizing, sole long service life.Urethane raw solidification is catalyzed with organic amine, and polyurethane shoe-sole product is environment-protecting and non-poisonous, and performance is able to satisfy the conventional physical property requirement of sole.
Description
Technical field
The present invention relates to a kind of production method of polyurethane shoe-sole and it can be used for the urethane raw and system of the production method
It is standby.
Background technique
The construction of sole is considerably complicated, just in the broadest sense, it may include all materials for constituting bottom such as outer bottom, indsole and heel
Material.For narrow sense, then for only referring to outer bottom, the common characteristic of general sole material should have it is wear-resisting, water-fast, oil resistant, it is heat-resisting,
Pressure resistance, impact resistance, elasticity is good, is easy after suitable foot type, sizing not flexible type, heat preservation, easily absorption moisture etc., while more to cooperate
Indsole has braking action to be not the stop Deng terms and conditions that slip and be easy in the change of feet on foot.There are many type of sole materials,
Two kinds of class bottom material of natural class bottom material and synthesis can be divided into.Natural class bottom material includes natural bottom leather, bamboo and wood material etc., synthesizes class bottom material
Including rubber, plastics, rubber and plastic suitable materials, regenerated leather, elastic hardboard etc..
The outsole production of the prior art generally has two kinds of techniques of vulcanization and injection molding.Sulfuration process is usually with rubber etc.
Thermosetting material is made through over cure, and using plane vulcanizer, high temperature and pressure, sulfidation has volatile materials discharge, curing
Rubber also can not natural degradation, all can become rubbish, worker by poisonous and harmful substance encroach on, the healthy prevention is improper to be easy to
Cause the occupational disease of shoemaking worker；Shooting Technique generally uses the thermoplastic materials such as TPR to be injection moulded by injection molding machine, thermoplasticity
Material may be reused, but plastics are also that can not degrade, and can all become rubbish, injection moulding process is also that high temperature and pressure is same
Also there is volatile materials discharge, injection moulding process mold temperature will quickly switch between high temperature and low temperature, need to consume more
The energy.This two kinds of techniques will pass through high temperature and pressure, and production process can all cause the discharge of volatile materials under high temperature, all exist
Not environmentally, manufactured product also can not all degrade production process, and not environmentally.
With the continuous development of technology, also there is the technology using pouring technology production sole, casting uses a kind of poly-
Urethane soles system, this placingJi Shu make sole using open die moulding by casting, are to utilize polyurethane shoe-sole stoste
The weight of fluid itself fills mold, molds compression moulding again when polyurethane starts solidification, it is more simple can only to make shape
Single sole, and centainly will appear the face of a Self-leveling, complex-shaped or three-dimensional sole can not make at all, and
This polyurethane shoe-sole stoste solidification temperature requirement will be at 80-100 DEG C, and production efficiency is relatively low.Simple shape, inefficiency,
Solidify high temperature, this casting sole technology is caused to be greatly limited.
And be bonded with glue between outsole and indsole, one is that glue bonding needs more labour, another
There is solvent inside glue, although occurring now with water-based glue, water-based glue is very big by limiting to, and solvent type glue is also big
Amount uses.With glue group bottom low efficiency and not environmentally, the intensity of glue bonding is not also high.Due to the limitation of shape and decorative pattern,
Indsole and outsole can only do relatively simple combination, and slightly complicated shape can not be just combined with, and form to design very big
It restricts.
Summary of the invention
The purpose of the present invention is to provide a kind of production method of polyurethane shoe-sole and it can be used for the poly- ammonia of the production method
Ester raw material and preparation.Sole is made using the method for the present invention, process conditions are simple, and production temperature is low, and high production efficiency produced
Journey does not have volatile materials generation.The indsole and outsole of sole are integrally formed, and, knot be bonded with glue is not required between outsole and indsole
It closes securely, is unlikely to deform after sizing, sole long service life.Urethane raw solidification is catalyzed with organic amine, polyurethane shoe-sole system
Product are environment-protecting and non-poisonous, and performance is able to satisfy the conventional physical property requirement of sole.
A kind of production method of polyurethane shoe-sole of technical solution of the present invention and the polyurethane that can be used for the production method are former
Material and preparation, comprising the following steps:
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C, Guan Bi mould；
B: it is evacuated to -0.1Mpa to mold inner-cavity, and keeps mold inner-cavity air pressure in the vacuum state of setting；
C: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to solid
Change, mold is kept the temperature at 50-80 DEG C；
D: after solidification, opening mold, take out molding polyurethane shoe-sole, and placing 6-8 hours physical property at normal temperature can reach
To requirement, deburring simultaneously obtains final polyurethane shoe-sole finished product.
A kind of production method of above-mentioned polyurethane shoe-sole, comprising the following steps:
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C；
B: placing indsole in die cavity, and indsole will be preheated to 50-80 DEG C in advance, Guan Bi mould；
C: -0.1Mpa is evacuated to mold inner-cavity；And keep mold inner-cavity air pressure in the vacuum state of setting；
D: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to solid
Change, mold is kept the temperature at 50-80 DEG C；
E: after solidification, mold is opened, molding combined type polyurethane shoe-sole is taken out, place 6-8 hours physical property at normal temperature
It can achieve requirement, deburring simultaneously obtains final combined type polyurethane shoe-sole finished product.
A kind of production method of above-mentioned polyurethane shoe-sole, comprising the following steps:
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C；
B: placing the sole accessory to be coated in die cavity, and accessory will be preheated to 50-80 DEG C in advance, Guan Bi mould；
C: -0.1Mpa is evacuated to mold inner-cavity；And keep mold inner-cavity air pressure in the vacuum state of setting；
D: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to solid
Change, mold is kept the temperature at 50-80 DEG C；
E: after solidification, opening mold, takes out molding polyurethane cladding sole accessory, places 6-8 hours objects at normal temperature
Property can achieve requirement, deburring simultaneously obtains final polyurethane cladding sole accessory finished product.
The CPU type polyurethane raw material of above-mentioned production polyurethane shoe-sole, the CPU Type Polyurethane Prepolymer and curing agent are mixed
Composition and division in a proportion example is the mass ratio of 100:(40-120), is uniformly mixed at a temperature of 50-60 DEG C；Kept for 50-80 DEG C in mold temperature
Under the conditions of, the mixture of CPU Type Polyurethane Prepolymer and curing agent reacts 10-30 minutes curing moldings in die cavity, molding with
Polyurethane shoe-sole afterwards places 6-8 hours physical property at normal temperature can achieve requirement, and obtain final polyurethane shoe-sole finished product.
The CPU type polyurethane raw material of above-mentioned production polyurethane shoe-sole, the CPU Type Polyurethane Prepolymer is by 100 mass
Part polyether polyol or polyester polyol, are heated with stirring to 100-120 DEG C, and vacuum heat-preserving 2 hours, then it is cooled to 60-80 DEG C, add
Enter 60-140 mass parts chain extender, continues stirring and be warming up to 85-95 DEG C, vacuum heat-preserving 4 hours, sampling and measuring-NCO content reached
After predetermined value 9%-21%, continues stirring and be cooled to 50-60 DEG C, vacuum heat-preserving 4 hours, obtain the CPU type polyurethane pre-polymerization
Body；The chain extender is methyl diphenylene diisocyanate.
The polyether polyol is Polyoxypropylene diol or polytetramethylene ether dihydric alcohol；
The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol or polypropylene glycol adipate dihydric alcohol；
The CPU type polyurethane raw material of the production polyurethane shoe-sole, the curing agent are more by 100-200 mass parts polyethers
First alcohol or 200-300 mass parts polyester polyol plus chain extender are heated with stirring to 100-120 DEG C, vacuum heat-preserving 2 hours, cool down
The stirring of 0.5-3.5 mass parts triethylene diamine is added to 60-80 DEG C, vacuum heat-preserving 4 hours, obtains the curing agent；It is described
Chain extender is 10-30 mass parts 1,4-butanediol.
The polyether polyol is Polyoxypropylene diol or polytetramethylene ether dihydric alcohol；
The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol or polypropylene glycol adipate dihydric alcohol；
The CPU type polyurethane raw material of the production polyurethane shoe-sole, the curing agent are more by 100-200 mass parts polyethers
First alcohol or 200-300 mass parts polyester polyol plus chain extender are heated with stirring to 100-120 DEG C, vacuum heat-preserving 2 hours, cool down
The stirring of 0.5-3.5 mass parts triethylene diamine is added to 60-80 DEG C, vacuum heat-preserving 4 hours, obtains the curing agent；It is described
Chain extender is 10-40 mass parts diglycol.
The polyether polyol is Polyoxypropylene diol or polytetramethylene ether dihydric alcohol；
The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol or polypropylene glycol adipate dihydric alcohol.
The CPU type polyurethane raw material, the Polyoxypropylene diol relative molecular weight are 1000-3000；It is described
Polytetramethylene ether dihydric alcohol relative molecular weight is 1000-3000；The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG)
Ester dihydric alcohol relative molecular weight is 1500-3500；The polypropylene glycol adipate dihydric alcohol relative molecular weight is 1500-
3500。
It in above-mentioned manufacturing process, needs to vacuumize mold inner-cavity, this link is needed using the applicant in 2017
Year No. 201721141643.3 " a kind of elimination fluid bubbles cast-molding device of suitable large-scale production " of application is sent out
Bright dedicated unit and method.
Sole is made the beneficial effects of the invention are as follows the method using the told casting of the present invention, process conditions are simple, energy conservation
Environmental protection, and sole shape is without limitations, can do various three-dimensional contourings.Polyurethane using the method for the invention preparation is former
Material can satisfy the process conditions of polyurethane shoe-sole of the present invention, i.e. reaction curable at a lower temperature, and be not necessarily to
Post-cure, stands 6-8 hours at normal temperature after demoulding, that is, can reach the physical property requirement of sole, this can largely be mentioned
High efficiency and the Environmental Protection Level for improving the process that is made.The urethane raw of the method for the invention preparation itself has well
Cementability, the solidification process in mold, itself sizing become outsole, be completed at the same time the bonding to indsole or accessory, in conjunction with
Securely, solvent contamination caused by combining using glue is avoided.Organic amine has been used in the preparation method of the urethane raw
Catalysis, it is non-toxic and tasteless to solidify later polyurethane shoe-sole, harmless, can greatly improve the Environmental Protection Level of sole material,
And polyurethane shoe-sole itself can compare vulcanization and other sole materials that Shooting Technique is made into are more environmentally friendly with natural degradation
Advantage, to mitigate entire shoemaking industry pollution on the environment.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail.
The embodiment of the present invention one
The poly- hexanedioic acid ethylene glycol diethylene glycol (DEG) ester dihydric alcohol of 100 mass parts is weighed, relative molecular weight 2000, heating stirring is extremely
120 DEG C, vacuum heat-preserving 2 hours, 60 DEG C are cooled to, 100 mass parts of methyl diphenylene diisocyanate are added, stirring is warming up to 90
DEG C, vacuum heat-preserving 4 hours, after measurement-NCO content reaches 13.8%, stirring was cooled to 50 DEG C, vacuum heat-preserving 4 hours, obtained pre-
Aggressiveness.
The poly- hexanedioic acid ethylene glycol diethylene glycol (DEG) ester dihydric alcohol of 260 mass parts is weighed, relative molecular weight 2000 adds 28 mass parts
Diglycol, be heated with stirring to 105 DEG C, vacuum heat-preserving 2 hours, be cooled to 70 DEG C, the triethylene two of 3 mass parts is added
Amine stirring, vacuum heat-preserving 4 hours, obtains curing agent.
By made performed polymer and curing agent heating at 50 DEG C, mixing ratio ratio is 100: 120, is uniformly mixed after deaeration, according to
According to following steps, A: cleaning can closed type mold, preheated mold makes temperature in mould cavity reach 60 DEG C, Guan Bi mould；B:
It is evacuated to -0.1Mpa to mold inner-cavity, and keeps mold inner-cavity air pressure in the vacuum state of setting；C: bubble will have been taken off
The mixture of CPU Type Polyurethane Prepolymer and curing agent is poured into mould cavity, to be solidified, and mold is kept the temperature at 70 DEG C；D:15
Solidify demoulding after minute, deburring and obtains final polyurethane shoe-sole finished product after placing 8 hours at 20 DEG C of room temperature.Test poly- ammonia
The physical property of ester shoe sole is as follows: hardness ShoreA-62, wear-resisting DIN-33, tensile strength 160kg/cm, tearing strength 32N/mm,
Elongation 588%, 1.17g/cm DEG C of specific gravity, tortuous 120,000 times without fracture.Polyurethane shoe-sole is made, uses the
A kind of No. 201721141643.3 patent documents " elimination fluid bubbles cast-molding device of suitable large-scale production " are invented
Dedicated unit and method.
Since mold is closure, material flow gravity levelling is leaned on completely unlike open casting mold, so
Shape is unrestricted, can do three-dimensional various shape.Production overall process is no more than 80 DEG C, and is in closed mould
Face solidification, so volatile materials will not be generated.Raw material is made process all and is under vacuum conditions, and reaction temperature all exists
80 DEG C or so, volatile materials will not be caused to discharge.The sole for comparing vulcanization and injection molding is formed with huge variation, vulcanization and
The temperature of injection molding is all at 150 DEG C or more, so it is also environmental protection without discharge that raw material, which is made,.
Embodiment two
Make combined type polyurethane shoe-sole." a kind of suitable scale metaplasia that uses No. 201721141643.3 patent document
The elimination fluid bubbles cast-molding device " dedicated unit and method invented of production.
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C；
B: placing indsole in die cavity, and indsole will be preheated to 50-80 DEG C in advance, Guan Bi mould；
C: -0.1Mpa is evacuated to mold inner-cavity；And keep mold inner-cavity air pressure in the vacuum state of setting；
D: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to solid
Change, mold is kept the temperature at 50-80 DEG C；
E: after solidification, mold is opened, molding combined type polyurethane shoe-sole is taken out, place 6-8 hours physical property at normal temperature
It can achieve requirement, deburring simultaneously obtains final combined type polyurethane shoe-sole finished product.
A variety of materials, polyurethane foam indsole, tpu foaming indsole, Eva foaming indsole, rubber pange can be used in indsole
Indsole, including hard polyurethane foam indsole, pp indsole, solid fiberboard indsole can be placed in mold, the present embodiment said midsole
It is also possible to the combination of sole accessory or indsole and sole accessory, such as sole accessory is insole.Pass through above-mentioned pouring type
It is made into combined type polyurethane shoe-sole, the cementability of various indsoles is different, only simple primary coat processing need to be done in middle bottom surface,
Polyurethane can strong bond in solidification process.By the design of mold, different position groupings can occur in indsole and outsole
Relationship can be two layers of upper and lower level combination, is also possible to the combination of two pieces of front and back, is also possible to embedded combination, is also possible to stand
Body formula cladding.The sole accessory refers to that many decorative or functional fittings, these accessories that can use inside sole are past
It is past not wear-resisting or afraid of water, it needs a closed package to protect, extends the performance or protection printed patterns of accessory.I
At No. 201320225472.8 patent documents " shock-damping structure that flexible foamed material is wrapped up in a kind of closing of flexible airtight material ", with
And vibration absorption unit described in 201620290345.X patent document " a kind of shock-damping structure of sole " belongs to matching for sole
Polyurethane cladding sole accessory can be made of the pouring procedure in embodiment three, form the solid to accessory or office for part
Portion's cladding, realizes design requirement and accessory functions.And it is not limited solely to the accessory production that two patent documents mention, it can also be with
Various sole accessories are coated with similar manufacturing technology, to make polyurethane cladding accessory.
Embodiment three
The poly- hexanedioic acid ethylene glycol diethylene glycol (DEG) ester dihydric alcohol of 100 mass parts is weighed, relative molecular weight 2000, heating stirring is extremely
120 DEG C, vacuum heat-preserving 2 hours, 60 DEG C are cooled to, 100 mass parts of methyl diphenylene diisocyanate are added, stirring is warming up to 90
DEG C, vacuum heat-preserving 4 hours, after measurement-NCO content reaches 13.8%, stirring was cooled to 50 DEG C, vacuum heat-preserving 4 hours, obtained pre-
Aggressiveness.
The poly- hexanedioic acid ethylene glycol diethylene glycol (DEG) ester dihydric alcohol of 260 mass parts is weighed, relative molecular weight 2000 adds 28 mass parts
Diglycol, be heated with stirring to 105 DEG C, vacuum heat-preserving 2 hours, be cooled to 70 DEG C, the triethylene two of 3 mass parts is added
Amine stirring, vacuum heat-preserving 4 hours, obtains curing agent.
By made performed polymer and curing agent heating at 50 DEG C, mixing ratio ratio is 100: 80, is uniformly mixed after deaeration, according to
Following steps, A: cleaning can closed type mold, preheated mold makes temperature in mould cavity reach 60 DEG C, Guan Bi mould；B: it gives
Mold inner-cavity is evacuated to -0.1Mpa, and keeps mold inner-cavity air pressure in the vacuum state of setting；C: the CPU of bubble will have been taken off
The mixture of Type Polyurethane Prepolymer and curing agent is poured into mould cavity, to be solidified, and mold is kept the temperature at 50 DEG C；D:30 minutes
Solidification demoulding afterwards deburring and obtains final polyurethane shoe-sole finished product after placing 8 hours at 20 DEG C of room temperature.Test polyurethane shoe
The physical property of egative film is as follows: hardness ShoreA-62, wear-resisting DIN-33, tensile strength 170kg/cm2, tearing strength 33N/mm, elongation
Rate 618%, 1.17g/cm DEG C of specific gravity, tortuous 120,000 times without fracture.
Example IV
The Polyoxypropylene diol of 100 mass parts is weighed, relative molecular weight 1000, heating stirring to 120 DEG C, protect by vacuum
Temperature 2 hours is cooled to 60 DEG C, and 120 mass parts of methyl diphenylene diisocyanate are added, and stirring is warming up to 90 DEG C, vacuum heat-preserving 4
Hour, after measurement-NCO content reaches 12.3%, stirring is cooled to 50 DEG C, vacuum heat-preserving 4 hours, obtains performed polymer.
The polytetramethylene ether dihydric alcohol of 164 mass parts is weighed, relative molecular weight 1500 adds Isosorbide-5-Nitrae-fourth two of 28 mass parts
Alcohol is heated with stirring to 105 DEG C, vacuum heat-preserving 2 hours, is cooled to 70 DEG C, the triethylene diamine stirring of 1.5 mass parts is added, very
Sky heat preservation 4 hours, obtains curing agent.
By made performed polymer and curing agent heating at 60 DEG C, mixing ratio ratio is 100: 50, is uniformly mixed after deaeration, according to
Following steps, A: cleaning can closed type mold, preheated mold makes temperature in mould cavity reach 70 DEG C, Guan Bi mould；B: it gives
Mold inner-cavity is evacuated to -0.1Mpa, and keeps mold inner-cavity air pressure in the vacuum state of setting；C: the CPU of bubble will have been taken off
The mixture of Type Polyurethane Prepolymer and curing agent is poured into mould cavity, to be solidified, and mold is kept the temperature at 70 DEG C；D:18 minutes
Solidification demoulding afterwards deburring and obtains final polyurethane shoe-sole finished product after placing 6 hours at 20 DEG C of room temperature.Test polyurethane shoe
The physical property of egative film is as follows: hardness ShoreA-75, wear-resisting DIN-45, tensile strength 280kg/cm2, tearing strength 45N/mm, elongation
Rate 650%, 1.19g/cm DEG C of specific gravity, tortuous 130,000 times without fracture.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (8)
1. a kind of production method of polyurethane shoe-sole, it is characterised in that the following steps are included:
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C, Guan Bi mould；
B: it is evacuated to -0.1Mpa to mold inner-cavity, and keeps mold inner-cavity air pressure in the vacuum state of setting；
C: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to be solidified, mould
Tool heat preservation is at 50-80 DEG C；
D: after solidification, opening mold, take out molding polyurethane shoe-sole, and 6-8 hours physical property of placement, which can achieve, at normal temperature wants
It asks, deburring simultaneously obtains final polyurethane shoe-sole finished product.
2. a kind of production method of polyurethane shoe-sole according to claim 1, it is characterised in that the following steps are included:
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C；
B: placing indsole in die cavity, and indsole will be preheated to 50-80 DEG C in advance, Guan Bi mould；
C: -0.1Mpa is evacuated to mold inner-cavity；And keep mold inner-cavity air pressure in the vacuum state of setting；
D: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to be solidified, mould
Tool heat preservation is at 50-80 DEG C；
E: after solidification, opening mold, take out molding combined type polyurethane shoe-sole, and placing 6-8 hours physical property at normal temperature can be with
Reach requirement, deburring simultaneously obtains final combined type polyurethane shoe-sole finished product.
3. a kind of production method of polyurethane shoe-sole according to claim 1, it is characterised in that the following steps are included:
A: cleaning can closed type mold, mold is preheated to 50-80 DEG C；
B: placing the sole accessory to be coated in die cavity, and accessory will be preheated to 50-80 DEG C in advance, Guan Bi mould；
C: -0.1Mpa is evacuated to mold inner-cavity；And keep mold inner-cavity air pressure in the vacuum state of setting；
D: the mixture of the CPU Type Polyurethane Prepolymer and curing agent that had taken off bubble is poured into mould cavity, to be solidified, mould
Tool heat preservation is at 50-80 DEG C；
E: after solidification, opening mold, takes out molding polyurethane cladding sole accessory, placing 6-8 hours physical property at normal temperature can
To reach requirement, deburring simultaneously obtains final polyurethane cladding sole accessory finished product.
4. the CPU type polyurethane raw material of production polyurethane shoe-sole according to claim 1,2 or 3, it is characterised in that CPU type
Base polyurethane prepolymer for use as and curing agent mixed proportion are the mass ratio of 100:(40-120), are uniformly mixed at a temperature of 50-60 DEG C；?
Under conditions of mold temperature is kept for 50-80 DEG C, the mixture of CPU Type Polyurethane Prepolymer and curing agent reacts 10- in die cavity
30 minutes curing moldings, forming later polyurethane shoe-sole and placing 6-8 hours physical property at normal temperature can achieve requirement, and obtain
Final polyurethane shoe-sole finished product.
5. the CPU type polyurethane raw material of production polyurethane shoe-sole according to claim 4, it is characterised in that the CPU type
Base polyurethane prepolymer for use as is heated with stirring to 100-120 DEG C, vacuum heat-preserving 2 is small by 100 mass parts polyether polyol or polyester polyol
When, then it is cooled to 60-80 DEG C, 60-140 mass parts chain extender is added, continues stirring and is warming up to 85-95 DEG C, vacuum heat-preserving 4 is small
When, after sampling and measuring-NCO content reaches predetermined value 9%-21%, continues stirring and be cooled to 50-60 DEG C, vacuum heat-preserving 4 hours,
Obtain the CPU Type Polyurethane Prepolymer；The chain extender is methyl diphenylene diisocyanate.
The polyether polyol is Polyoxypropylene diol or polytetramethylene ether dihydric alcohol；
The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol or polypropylene glycol adipate dihydric alcohol.
6. the CPU type polyurethane raw material of production polyurethane shoe-sole according to claim 4, it is characterised in that the curing agent
100-120 is heated with stirring to by 100-200 mass parts polyether polyol or 200-300 mass parts polyester polyol plus chain extender
DEG C, it vacuum heat-preserving 2 hours, is cooled to 60-80 DEG C and adds the stirring of 0.5-3.5 mass parts triethylene diamine, vacuum heat-preserving 4 is small
When, obtain the curing agent；The chain extender is 10-30 mass parts 1,4- butanediol.
The polyether polyol is Polyoxypropylene diol or polytetramethylene ether dihydric alcohol；
The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol or polypropylene glycol adipate dihydric alcohol.
7. the CPU type polyurethane raw material of production polyurethane shoe-sole according to claim 4, it is characterised in that the curing agent
100-120 is heated with stirring to by 100-200 mass parts polyether polyol or 200-300 mass parts polyester polyol plus chain extender
DEG C, it vacuum heat-preserving 2 hours, is cooled to 60-80 DEG C and adds the stirring of 0.5-3.5 mass parts triethylene diamine, vacuum heat-preserving 4 is small
When, obtain the curing agent；The chain extender is 10-40 mass parts diglycol.
The polyether polyol is Polyoxypropylene diol or polytetramethylene ether dihydric alcohol；
The polyester polyol is polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol or polypropylene glycol adipate dihydric alcohol.
8. according to CPU type polyurethane raw material described in claim 5 or 6 and/or 7, which is characterized in that the polypropylene oxide two
First alcohol relative molecular weight is 1000-3000；The polytetramethylene ether dihydric alcohol relative molecular weight is 1000-3000；It is described poly-
Ester polyol is that polyadipate ethylene glycol diethylene glycol (DEG) ester dihydric alcohol relative molecular weight is 1500-3500；The polyadipate the third two
Alcohol ester dihydric alcohol relative molecular weight is 1500-3500.
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| CN201811108410.2A CN109810236B (en) | 2018-09-21 | 2018-09-21 | Method for manufacturing polyurethane sole and polyurethane raw material used for method |
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| CN201811108410.2A CN109810236B (en) | 2018-09-21 | 2018-09-21 | Method for manufacturing polyurethane sole and polyurethane raw material used for method |
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| CN109810236B CN109810236B (en) | 2022-04-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334660A (en) * | 2021-04-27 | 2021-09-03 | 代冠慧 | Manufacturing equipment for polyurethane sole |
| CN113801290A (en) * | 2021-06-25 | 2021-12-17 | 东莞豪峻橡塑有限公司 | Ultrahigh-performance environment-friendly sneaker outsole replacing vulcanized rubber, preparation method and forming equipment thereof |
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| CN114986779A (en) * | 2022-05-25 | 2022-09-02 | 福州瑞诚鞋材模具有限公司 | Production process for pouring shoemaking |
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