CN108978238A - A kind of polyurethane aqueous surface treating agent of resistance to wiping - Google Patents
A kind of polyurethane aqueous surface treating agent of resistance to wiping Download PDFInfo
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- CN108978238A CN108978238A CN201810797112.2A CN201810797112A CN108978238A CN 108978238 A CN108978238 A CN 108978238A CN 201810797112 A CN201810797112 A CN 201810797112A CN 108978238 A CN108978238 A CN 108978238A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/146—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes characterised by the macromolecular diols used
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/105—Resistant to abrasion, scratch
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to polyurethane material technical fields, more particularly to a kind of polyurethane aqueous surface treating agent of resistance to wiping, its quality formula are as follows: 100 parts of aqueous polyurethane emulsion, 80 parts of water, UL5125:3 parts of wetting agent, F530:0.5 parts of defoaming agent, UX-331:1.5 parts of hand feeling agent, HM-15:5 parts of crosslinking agent, 8501:8 parts of aqueous color paste, 8807:2 parts of polyurethane thickener；And provide the preparation method of the formula.The present invention solves that existing polyurethane surface treating agent smell is big, the problem of resistance to wiping properties difference, can be acted on using wetting agent with the defoaming of combining of defoaming agent, be aided with the freezing action of polyurethane thickener, greatly improve the adhesive force of aqueous colorant.
Description
Technical field
The invention belongs to polyurethane material technical fields, and in particular to a kind of polyurethane aqueous surface treatment of resistance to wiping
Agent.
Background technique
Aqueous polyurethane is to replace organic solvent as the new polyurethane system of decentralized medium using water, and also referred to as water dispersion is poly-
Urethane, aqueous polyurethane or water-based polyurethane.Aqueous polyurethane takes water as a solvent, pollution-free, safe and reliable, mechanical performance is excellent
Good, the advantages that compatibility is good, easily modified.So being widely used in: coating, ink, adhesive, leather finishing agent, artificial
Leather, gloves lubricant etc..By taking leather finishing agent as an example: covering with paint is an important link in leather making processes.It can
The beauty and durability for increasing leather, improve the grade, increase varieties and designs, expand use scope.Wherein polyurethanes is covered with paint, lacquer, colour wash, etc.
The filming performance of agent is good, strong covering power, is firmly bonded, and the excellent physical properties of coating are greatly improved the grade of finished leather, thus
It is highly valued and widely pays close attention to.
The Chinese invention patent of Publication No. CN104480237A discloses a kind of bright surface treatment agent of leather, by aqueous poly- ammonia
It is 50-60 parts of ester resin, 30-40 parts of deionized water, 1-5 parts of silicone emulsion, 0.5-2 parts of organosilicon levelling agent, non-ion aqueous
1-8 parts of polyurethane thickener, 1-5 parts of superfine nano waste rubber micropowder, copper powder or 0.1-2 parts of aluminium powder, silane coupling agent 2-6
Part, it is prepared using following steps: (1) will be mixed with superfine nano waste rubber micropowder after 2/3rds high-temperature atomizings of silane coupling agent
Conjunction is uniformly dispersed, so that superfine nano waste rubber micropowder surface one layer of coupling agent of uniform fold, obtains mixture A；By remaining silicon
It is uniformly mixed after the atomization of alkane coupling agent with copper powder or aluminium powder, obtains mixture B；(2) by waterborne polyurethane resin, deionization
1-2h is mixed in water, silicone emulsion, organosilicon levelling agent, then uses frequency for the ultrasonication 10- of 60-80kHz
After 30min, grinding, filtering obtain lotion；(3) step (2) are added in aqueous polyurethane thickener to be made in lotion, are stirred evenly,
The mixture A of step (1) is added, then uses frequency for the ultrasonication 5-10min of 30-40kHz, mixture B is added and adopts again
With the ultrasonication 10-30s of same frequency.
Copper powder is added in the technical solution in formula or aluminium powder increases the brightness of coating；What is be added in formula is ultra-fine
Nanometer waste rubber micropowder is added to the binding force in lotion between reinforced resin and rubber micro mist, Jin Erti by coupling agent treatment
High coating and leather cohesive force；By the way of ultrasonication, by ultrasonic vibration, the activation of reactant molecule is increased
Can, increase collision probability, the lotion of acquisition is more uniform, and the combination between molecule is stronger, improves the quality of inorganic agent, extends
Shelf-life and using effect.But the problems such as that there are smells is big for the technical solution, and resistance to wiping properties are poor.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of resistance to polyurethane aqueous surface treating agent of wiping, solves
Existing polyurethane surface treating agent smell is big, the problem of resistance to wiping properties difference, can be disappeared using wetting agent with combining for defoaming agent
Bubble effect, is aided with the freezing action of polyurethane thickener, greatly improves the adhesive force of aqueous colorant.
To realize the above technical purpose, the technical scheme is that
A kind of resistance to polyurethane aqueous surface treating agent of wiping, including following quality formula are prepared:
100 parts of aqueous polyurethane emulsion, 80 parts of water, UL5125:3 parts of wetting agent, F530:0.5 parts of defoaming agent, hand feeling agent
1.5 parts of UX-331, HM-15:5 parts of crosslinking agent, 8501:8 parts of aqueous color paste, 8807:2 parts of polyurethane thickener；
The preparation method is as follows:
Step 1, raw material are weighed according to above-mentioned formula, and by aqueous polyurethane emulsion, water, wetting agent, defoaming agent, crosslinking
Agent, hand feeling agent and aqueous color paste, which are sequentially placed into Scattered Kettle, stirs 30min, mixing speed 500r/min；
Step 2, polyurethane thickener is added into Scattered Kettle, continues to be stirred to react 1h, obtains poly- ammonia after reaction
Ester aqueous surface-treating agent.
The quality formula of the aqueous polyurethane emulsion is as follows:
160-180 parts of polyester polyol, 4-6 parts of butanediol, 120-130 parts of toluene di-isocyanate(TDI), dihydromethyl propionic acid
30-40 parts, 20-30 parts of modified polyhydroxy polymer, 80-100 parts of pyrrolidones, 22-30 parts of triethylamine, deionized water 700-
800 parts, 3-4 parts of ethylenediamine.
The molecular weight of the polyester polyol is 1500.
Modified polyhydroxy polymer degree of functionality containing there are three, and molecular weight is 900.
The preparation method of the aqueous polyurethane emulsion is according to as follows:
It is anti-to be sequentially added into reaction kettle constant temperature pre-polymerization by step a for polyester polyol, butanediol and toluene di-isocyanate(TDI)
Answer 2h；
Dihydromethyl propionic acid and modified polyhydroxy polymer are added in the reaction solution of step 1 and add after mixing evenly by step b
Enter catalyst organo-bismuth and carry out chain extending reaction 4h, pyrrolidones is added during the reaction and adjusts viscosity, obtains first polymer,
The temperature of the chain extending reaction is 75-80 DEG C；
First polymer is cooled to 50 DEG C, triethylamine neutralization reaction 5min is added, deionized water is then added by step c
It is dispersed with stirring, obtains the polyaminoester emulsion that solid content is 30%；
Step d, ethylenediamine solution is slowly dropped in polyaminoester emulsion, and time for adding is 30-40 minutes, is dripped
Bi Hou continues to stir 10min, aqueous polyurethane emulsion is then obtained by filtration.
The temperature of constant temperature prepolymerization reaction is 80-90 DEG C in the step a.
The additional amount of catalyst organo-bismuth in the step b is 180g.
Viscosity when pyrrolidones in the step b is added is 5000cps, and the pyrrolidones is divided into two batches addition,
The additional amount of every batch of is the 50% of pyrrolidones total amount.
The mass fraction of ethylenediamine is 15-20% in ethylenediamine solution in the step d.
Wetting agent UL5125 is a kind of high performance organosilicon wetting agent, has fine permeability to microporous substrate, reduces and apply
Film defect, while reducing frothing capacity；In the system, wetting agent can play good permeability, it is ensured that can ensure water
Property polyaminoester emulsion comes into full contact with leather surface, while can reduce the defect of film, promotes its flatness.
The effect of defoaming agent itself is defoaming and foam inhibition, but does not influence bubble system；Foam itself is gas in liquid
In coarse dispersion, belong to solution-air heterogeneous system.Defoaming agent is able to ascend uniform between bubble and lotion, soaks simultaneously
Agent also has the effect of certain reduction bubble, can reduce the bubble in lotion to greatest extent, so as to reduce surface
Gas hole in inorganic agent, promotes the surface compact of inorganic agent, can be evenly dispersed by aqueous slurry, not only improves aqueous
Slurry while reducing the bubble hole between aqueous slurry in the dispersing uniformity of leather surface, promotes caking property, has good
Adhesive force and color coverage effect.
Thickener can effectively promote the toughness of polyaminoester emulsion, and the promotion of viscosity can accelerate aqueous color paste and exist
The solidification of leather surface；Cooperate defoaming agent and wetting agent, can not only guarantee the cleanliness of lotion, guarantee the uniformity of film,
Ensure being uniformly distributed for mill base；And air bubble content is compressed at least by the effect of defoaming agent and wetting agent, is solved mill base and is covered
Air bubble problem during lid, improves curing rate, reduces the fraction defective of coating.
Polyester polyol be used for polyurethane preparation, by polyester polyol prepare polyester polyurethane itself contain compared with
More ester group, amino isopolarity group, greatly improve the intensity of interior polymeric, while it is strong also can effectively to promote attachment
Degree, so, aqueous polyurethane emulsion has good interior cohesive strength and adhesive strength；At the same time, polyester polyurethane is also
Have higher intensity and wearability, can guarantee that aqueous color paste in the wearability of leather surface, guarantees that mill base adheres to stability,
Increase service life,.
Contain great amount of hydroxy group in modified polyhydroxy polymer, hydroxyl and polyester polyol form polymerization effect, poly- generating
The adhesive force and interior polymeric intensity that polyurethane can be promoted while urethane using interior polymeric connecting key, guarantee polyurethane tool
Standby good intensity and internal connectivity, can effectively ensure that the adhesiveness of aqueous slurry.
From the above, it can be seen that the present invention has following advantages:
1. the present invention solves, existing polyurethane surface treating agent smell is big, and the problem of resistance to wiping properties difference can utilize
Wetting agent combines defoaming effect with defoaming agent, is aided with the freezing action of polyurethane thickener, greatly improves aqueous colorant
Adhesive force.
2. the present invention uses raw material of the polyester polyol as polyaminoester emulsion, it is capable of forming polyester polyurethane, no
Only have good cohesive strength and attachment slight, while also there is good wearability.
Specific embodiment
The present invention will be described in detail in conjunction with the embodiments, but does not do any restriction to claim of the invention.
Embodiment 1
A kind of resistance to polyurethane aqueous surface treating agent of wiping, including following quality formula are prepared:
100 parts of aqueous polyurethane emulsion, 80 parts of water, UL5125:3 parts of wetting agent, F530:0.5 parts of defoaming agent, hand feeling agent
UX-331:1.5 parts, HM-15:5 parts of crosslinking agent, 8501:8 parts of aqueous color paste, 8807:2 parts of polyurethane thickener；
The preparation method is as follows:
Step 1, raw material are weighed according to above-mentioned formula, and by aqueous polyurethane emulsion, water, wetting agent, defoaming agent, crosslinking
Agent, hand feeling agent and aqueous color paste, which are sequentially placed into Scattered Kettle, stirs 30min, mixing speed 500r/min；
Step 2, polyurethane thickener is added into Scattered Kettle, continues to be stirred to react 1h, obtains poly- ammonia after reaction
Ester aqueous surface-treating agent.
The quality formula of the aqueous polyurethane emulsion is as follows:
160 parts of polyester polyol, 4 parts of butanediol, 120 parts of toluene di-isocyanate(TDI), 30 parts of dihydromethyl propionic acid, modification are more
20 parts of hydroxy polymer, 80 parts of pyrrolidones, 22 parts of triethylamine, 700 parts of deionized water, 3 parts of ethylenediamine.
The molecular weight of the polyester polyol is 1500.
Modified polyhydroxy polymer degree of functionality containing there are three, and molecular weight is 900.
The preparation method of the aqueous polyurethane emulsion is according to as follows:
It is anti-to be sequentially added into reaction kettle constant temperature pre-polymerization by step a for polyester polyol, butanediol and toluene di-isocyanate(TDI)
Answer 2h；
Dihydromethyl propionic acid and modified polyhydroxy polymer are added in the reaction solution of step 1 and add after mixing evenly by step b
Enter catalyst organo-bismuth and carry out chain extending reaction 4h, pyrrolidones is added during the reaction and adjusts viscosity, obtains first polymer,
The temperature of the chain extending reaction is 75 DEG C；
First polymer is cooled to 50 DEG C, triethylamine neutralization reaction 5min is added, deionized water is then added by step c
It is dispersed with stirring, obtains the polyaminoester emulsion that solid content is 30%；
Step d, ethylenediamine solution is slowly dropped in polyaminoester emulsion, and time for adding is 30 minutes, is added dropwise
Afterwards, continue to stir 10min, aqueous polyurethane emulsion is then obtained by filtration.
The temperature of constant temperature prepolymerization reaction is 80 DEG C in the step a.
The additional amount of catalyst organo-bismuth in the step b is 180g.
Viscosity when pyrrolidones in the step b is added is 5000cps, and the pyrrolidones is divided into two batches addition,
The additional amount of every batch of is the 50% of pyrrolidones total amount.
The mass fraction of ethylenediamine is 15% in ethylenediamine solution in the step d.
Embodiment 2
A kind of resistance to polyurethane aqueous surface treating agent of wiping, including following quality formula are prepared:
100 parts of aqueous polyurethane emulsion, 80 parts of water, UL5125:3 parts of wetting agent, F530:0.5 parts of defoaming agent, hand feeling agent
1.5 parts of UX-331, HM-15:5 parts of crosslinking agent, 8501:8 parts of aqueous color paste, 8807:2 parts of polyurethane thickener；
The preparation method is as follows:
Step 1, raw material are weighed according to above-mentioned formula, and by aqueous polyurethane emulsion, water, wetting agent, defoaming agent, crosslinking
Agent, hand feeling agent and aqueous color paste, which are sequentially placed into Scattered Kettle, stirs 30min, mixing speed 500r/min；
Step 2, polyurethane thickener is added into Scattered Kettle, continues to be stirred to react 1h, obtains poly- ammonia after reaction
Ester aqueous surface-treating agent.
The quality formula of the aqueous polyurethane emulsion is as follows:
180 parts of polyester polyol, 6 parts of butanediol, 130 parts of toluene di-isocyanate(TDI), 40 parts of dihydromethyl propionic acid, modification are more
30 parts of hydroxy polymer, 100 parts of pyrrolidones, 30 parts of triethylamine, 800 parts of deionized water, 4 parts of ethylenediamine.
The molecular weight of the polyester polyol is 1500.
Modified polyhydroxy polymer degree of functionality containing there are three, and molecular weight is 900.
The preparation method of the aqueous polyurethane emulsion is according to as follows:
It is anti-to be sequentially added into reaction kettle constant temperature pre-polymerization by step a for polyester polyol, butanediol and toluene di-isocyanate(TDI)
Answer 2h；
Dihydromethyl propionic acid and modified polyhydroxy polymer are added in the reaction solution of step 1 and add after mixing evenly by step b
Enter catalyst organo-bismuth and carry out chain extending reaction 4h, pyrrolidones is added during the reaction and adjusts viscosity, obtains first polymer,
The temperature of the chain extending reaction is 80 DEG C；
First polymer is cooled to 50 DEG C, triethylamine neutralization reaction 5min is added, deionized water is then added by step c
It is dispersed with stirring, obtains the polyaminoester emulsion that solid content is 30%；
Step d, ethylenediamine solution is slowly dropped in polyaminoester emulsion, and time for adding is 40 minutes, is added dropwise
Afterwards, continue to stir 10min, aqueous polyurethane emulsion is then obtained by filtration.
The temperature of constant temperature prepolymerization reaction is 90 DEG C in the step a.
The additional amount of catalyst organo-bismuth in the step b is 180g.
Viscosity when pyrrolidones in the step b is added is 5000cps, and the pyrrolidones is divided into two batches addition,
The additional amount of every batch of is the 50% of pyrrolidones total amount.
The mass fraction of ethylenediamine is 20% in ethylenediamine solution in the step d.
Embodiment 3
A kind of resistance to polyurethane aqueous surface treating agent of wiping, including following quality formula are prepared:
100 parts of aqueous polyurethane emulsion, 80 parts of water, UL5125:3 parts of wetting agent, F530:0.5 parts of defoaming agent, hand feeling agent
1.5 parts of UX-331, HM-15:5 parts of crosslinking agent, 8501:8 parts of aqueous color paste, 8807:2 parts of polyurethane thickener；
The preparation method is as follows:
Step 1, raw material are weighed according to above-mentioned formula, and by aqueous polyurethane emulsion, water, wetting agent, defoaming agent, crosslinking
Agent, hand feeling agent and aqueous color paste, which are sequentially placed into Scattered Kettle, stirs 30min, mixing speed 500r/min；
Step 2, polyurethane thickener is added into Scattered Kettle, continues to be stirred to react 1h, obtains poly- ammonia after reaction
Ester aqueous surface-treating agent.
The quality formula of the aqueous polyurethane emulsion is as follows:
170 parts of polyester polyol, 5 parts of butanediol, 125 parts of toluene di-isocyanate(TDI), 35 parts of dihydromethyl propionic acid, modification are more
25 parts of hydroxy polymer, 90 parts of pyrrolidones, 26 parts of triethylamine, 750 parts of deionized water, 4 parts of ethylenediamine.
The molecular weight of the polyester polyol is 1500.
Modified polyhydroxy polymer degree of functionality containing there are three, and molecular weight is 900.
The preparation method of the aqueous polyurethane emulsion is according to as follows:
It is anti-to be sequentially added into reaction kettle constant temperature pre-polymerization by step a for polyester polyol, butanediol and toluene di-isocyanate(TDI)
Answer 2h；
Dihydromethyl propionic acid and modified polyhydroxy polymer are added in the reaction solution of step 1 and add after mixing evenly by step b
Enter catalyst organo-bismuth and carry out chain extending reaction 4h, pyrrolidones is added during the reaction and adjusts viscosity, obtains first polymer,
The temperature of the chain extending reaction is 78 DEG C；
First polymer is cooled to 50 DEG C, triethylamine neutralization reaction 5min is added, deionized water is then added by step c
It is dispersed with stirring, obtains the polyaminoester emulsion that solid content is 30%；
Step d, ethylenediamine solution is slowly dropped in polyaminoester emulsion, and time for adding is 35 minutes, is added dropwise
Afterwards, continue to stir 10min, aqueous polyurethane emulsion is then obtained by filtration.
The temperature of constant temperature prepolymerization reaction is 85 DEG C in the step a.
The additional amount of catalyst organo-bismuth in the step b is 200g.
Viscosity when pyrrolidones in the step b is added is 5000cps, and the pyrrolidones is divided into two batches addition,
The additional amount of every batch of is the 50% of pyrrolidones total amount.
The mass fraction of ethylenediamine is 18% in ethylenediamine solution in the step d.
Performance detection
Detection method is in accordance with the following steps:
Step 1, polyurethane aqueous surface treating agent is put into printing machine, PVC artificial leather is printed, and in 130-
It is dry at 140 DEG C, sample is obtained after cutting；
Step 2, sample is placed on crocking testing machine and carries out frictional experiment, the load of the frictional experiment is
9N, friction head are circular friction head, and friction velocity is 60 beats/min, and Rubbing number is 10 times；
Step 3, dry friction: white standard cotton (dry) is clipped on the friction head of friction lever, support rod is put down, rubs back and forth
It wipes 10 times；
Wet friction: by white standard cotton bubble in distilled water (alcohol), then pass through pressure rolling, make the water absorption rate control of cotton
System covers on the friction head of friction lever between 95%-105%, then by the good standard cotton cloth of pressure rolling (wet), puts down support rod, past
Return friction 10 times；Finally by wet cotton naturally dry at room temperature；
Step 4, according to national standards GB/T 3922 detect dry and wet cotton color fastness；
It is graded in standard light both with the staining that the staining card of D65 light source and GB/T-251 carries out dry and wet cotton.
It obtains after tested, the color fastness of embodiment 1, embodiment 2 and embodiment 3 is 5 grades
In conclusion the invention has the following advantages that
1. the present invention solves, existing polyurethane surface treating agent smell is big, and the problem of resistance to wiping properties difference can utilize
Wetting agent combines defoaming effect with defoaming agent, is aided with the freezing action of polyurethane thickener, greatly improves aqueous colorant
Adhesive force.
2. the present invention uses raw material of the polyester polyol as polyaminoester emulsion, it is capable of forming polyester polyurethane, no
Only have good cohesive strength and attachment slight, while also there is good wearability.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments.Those skilled in the art should understand that still can be carried out to the present invention
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of resistance to polyurethane aqueous surface treating agent of wiping, it is characterised in that: be prepared including following quality formula:
100 parts of aqueous polyurethane emulsion, 80 parts of water, UL5125:3 parts of wetting agent, F530:0.5 parts of defoaming agent, hand feeling agent UX-331
1.5 parts, HM-15:5 parts of crosslinking agent, 8501:8 parts of aqueous color paste, 8807:2 parts of polyurethane thickener；
The preparation method is as follows:
Step 1, raw material are weighed according to above-mentioned formula, and by aqueous polyurethane emulsion, water, wetting agent, defoaming agent, crosslinking agent,
Hand feeling agent and aqueous color paste, which are sequentially placed into Scattered Kettle, stirs 30min, mixing speed 500r/min；
Step 2, polyurethane thickener is added into Scattered Kettle, continues to be stirred to react 1h, obtains polyurethane water after reaction
Property surface treating agent.
2. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 1, it is characterised in that: described aqueous poly-
The quality formula of urethane lotion is as follows:
160-180 parts of polyester polyol, 4-6 parts of butanediol, 120-130 parts of toluene di-isocyanate(TDI), dihydromethyl propionic acid 30-40
Part, 20-30 parts of modified polyhydroxy polymer, 80-100 parts of pyrrolidones, 22-30 parts of triethylamine, 700-800 parts of deionized water,
3-4 parts of ethylenediamine.
3. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 2, it is characterised in that: the polyester is more
The molecular weight of first alcohol is 1500.
4. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 2, it is characterised in that: the modification is more
Hydroxy polymer degree of functionality containing there are three, and molecular weight is 900.
5. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 2, it is characterised in that: described aqueous poly-
The preparation method of urethane lotion is according to as follows:
Polyester polyol, butanediol and toluene di-isocyanate(TDI) are sequentially added into reaction kettle constant temperature prepolymerization reaction by step a
2h；
Dihydromethyl propionic acid and modified polyhydroxy polymer are added in the reaction solution of step 1 to be stirring evenly and then adding into and be urged by step b
Agent organo-bismuth carries out chain extending reaction 4h, and pyrrolidones is added during the reaction and adjusts viscosity, obtains first polymer, described
The temperature of chain extending reaction is 75-80 DEG C；
Step c, is cooled to 50 DEG C for first polymer, triethylamine neutralization reaction 5min is added, and deionized water stirring is then added
Dispersion obtains the polyaminoester emulsion that solid content is 30%；
Step d, ethylenediamine solution is slowly dropped in polyaminoester emulsion, and time for adding is 30-40 minutes, is added dropwise
Afterwards, continue to stir 10min, aqueous polyurethane emulsion is then obtained by filtration.
6. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 5, it is characterised in that: the step a
The temperature of middle constant temperature prepolymerization reaction is 80-90 DEG C.
7. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 5, it is characterised in that: the step b
In the additional amount of catalyst organo-bismuth be 180g.
8. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 5, it is characterised in that: the step b
In pyrrolidones be added when viscosity be 5000cps, the pyrrolidones be divided into two batches addition, the additional amount of every batch of is pyrroles
The 50% of alkanone total amount.
9. the resistance to polyurethane aqueous surface treating agent of wiping of one kind according to claim 5, it is characterised in that: the step d
In ethylenediamine solution in ethylenediamine mass fraction be 15-20%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863015A (en) * | 2021-09-22 | 2021-12-31 | 安安(中国)有限公司 | Production method of erasable microfiber synthetic leather |
| CN116285646A (en) * | 2022-11-30 | 2023-06-23 | 广东邦固化学科技有限公司 | Water-based paint with excellent adhesive force to polypropylene film and preparation method thereof |
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| CN113863015A (en) * | 2021-09-22 | 2021-12-31 | 安安(中国)有限公司 | Production method of erasable microfiber synthetic leather |
| CN113863015B (en) * | 2021-09-22 | 2024-05-17 | 安安(中国)有限公司 | Production method of erasable microfiber synthetic leather |
| CN116285646A (en) * | 2022-11-30 | 2023-06-23 | 广东邦固化学科技有限公司 | Water-based paint with excellent adhesive force to polypropylene film and preparation method thereof |
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