CN105131694B - Emulsion type antisticking slipping agent for powderless PVC glove coating and preparation method thereof - Google Patents
Emulsion type antisticking slipping agent for powderless PVC glove coating and preparation method thereof Download PDFInfo
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- CN105131694B CN105131694B CN201510487747.9A CN201510487747A CN105131694B CN 105131694 B CN105131694 B CN 105131694B CN 201510487747 A CN201510487747 A CN 201510487747A CN 105131694 B CN105131694 B CN 105131694B
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Abstract
The invention relates to an emulsion type antisticking slipping agent for powderless PVC glove coating. The emulsion type antisticking slipping agent is a polyacrylate/silicon-containing polyurethane composite emulsion. The composite emulsion consists of 30-80% of polyacrylate and 20-70% of silicon-containing polyurethane. The composite emulsion can be added into the formula of powderless PVC glove coating to effectively substitute wax and organic silicone oil to play a slip increasing role, also can completely or partly replace an inorganic rigid agent to endow gloves with good molding and antisticking properties, has the advantages of no generation of precipitate, no after-tack of gloves, no edge torsion and more excellent slip grade, and has greater practicability.
Description
Technical field
The present invention relates to antiseized slip agent of a kind of emulsion-type and preparation method thereof, particularly a kind of polyacrylate/siliceous
Antiseized slip agent of polyurethane complex emulsions and preparation method thereof, especially one kind can be used to non-powder PVC gloves coating replace nothing
Antiseized slip agent of emulsion-type of the slip agent such as machine powder hard agent and wax and preparation method thereof.
Background technology
PVC glove is through rubberized system by compositions such as PVC paste resin, plasticizer, thinner and soap stabilizers
, the features such as with chemical resistance, anti-flammability, high and easy to process intensity.But due to adding a large amount of plasticizer, without
The PVC glove of surface treatment not easy mold release and dress property it is poor.Traditional processing method is to coat talcum powder in glove surface or change
Property the dry and comfortable lubriation material such as starch, to solve the problems, such as the demoulding and the wearing of gloves, gloves prepared by this method are referred to as have powder
Gloves.But have powder gloves the dry and comfortable lubrication prescription of powder can in use to environment, which has limited its electronics,
Application in the dustfree environments such as aircraft industry.Therefore, it has been developed that powder-free gloves replace having powder gloves, with dustfree environment
Middle application.
Powder-free gloves are the antiseized paintings of macromolecule such as first dip-coating one layer of aqueous polyurethane, polyacrylate before gloves demolding
Expect to solve the problems such as gloves hardly possible demoulding for causing because tacky and not easy donning.This layer of aqueous high molecular coating is generally by aqueous
Macromolecule resin, levelling agent, defoamer, inorganic hard agent, slip agent, thickener etc. are constituted.It is right that aqueous high molecular resin is provided
The performances such as the tack and elasticity of PVC materials, and inorganic hard agent then provides antiseized, case hardness and slippery and helps gloves
The important function such as shaping.These inorganic hard agent are typically precipitated calcium carbonate, silica flour, aluminium silicate powder and titanium dioxide etc., due to this
A little inorganic particle hard agent itself have larger density, in coating by highly diluted ratio (coating：Water=1：10~15 dilutions) it is dilute
Release using when be easy to precipitation, this can have a strong impact on the quality of gloves, cause turn round side, after-tack, surface contamination a series of problems, such as.
Wax or organic silicone oil are commonly used in glove coating as slip agent, but these slip agents often cause surface shrinkage cavity, dilution
Surface tension rises high major defect.
In existing technology, the A silica of patent CN 103013321 is used as hard agent, because silica
Density is big, and this will inevitably cause a large amount of precipitations to generate.The A of patent CN 104419313 does not use inorganic hard agent, only
Use wax liquor as slip agent, this will cause the increase after-tacked with defect rate of gloves.
In view of the defect that the antiseized slip agent of above-mentioned existing non-powder PVC gloves is present, the present inventor is based on and is engaged in such
Product design manufacture practical experience abundant for many years and professional knowledge, and coordinate the utilization of scientific principle, positive in addition research and innovation, with
Phase founds a kind of polyacrylate/antiseized slip agent of silicon-based polyurethane complex emulsions, the emulsion is added to into non-powder PVC gloves and is applied
In material formula, can effectively replace wax and organic silicone oil to play the sliding effect of increasing, can also completely or partially replace inorganic hard agent with
Give gloves good shaping, anti-adhesion characteristic, precipitation is not produced when diluting because of the emulsion yet, therefore can also solve traditional flat painting
Expect highly diluted than using when the sedimentation problem that produces of inorganic hard agent, more with practicality.The present inventor is through continuous
Research, design, and after repetition test and improvement, the present invention having practical value is created finally.
The content of the invention
It is an object of the present invention to be directed to when existing non-powder PVC gloves adopt inorganic particle hard dilution agent application easily produce
Raw precipitation, and the defect caused by gloves quality is had a strong impact on as slip agent using wax or organic silicone oil, there is provided Yi Zhongwu
Antiseized slip agent of emulsion-type of powder PVC gloves coating and preparation method thereof, by the emulsion powder-free gloves formulation for coating material is added to
In, can effectively replace wax and organic silicone oil to play the sliding effect of increasing, can also completely or partially replace inorganic hard agent to give gloves
Good shaping, anti-adhesion characteristic, does not produce precipitation yet when diluting because of the emulsion, therefore it is dilute in height also to solve traditional flat coating
Release than using when the sedimentation problem that produces of inorganic hard agent, thus more there is practicality.
The object of the invention to solve the technical problems employs the following technical solutions to realize.
According to a kind of antiseized slip agent of emulsion-type of non-powder PVC gloves coating proposed by the present invention, wherein, described breast
The antiseized slip agent of liquid type is polyacrylate/silicon-based polyurethane complex emulsions, and the complex emulsions are by polyacrylate and siliceous poly-
Urethane is constituted, wherein, polyacrylate accounts for the 30~80% of resin total amount, and silicon-based polyurethane accounts for the 20~70% of resin total amount.
The object of the invention to solve the technical problems can also be applied to the following technical measures to achieve further.
A kind of antiseized slip agent of emulsion-type of aforesaid non-powder PVC gloves coating, wherein, described polyacrylate/
The particle diameter of silicon-based polyurethane complex emulsions is 10nm~1000nm, and solid content is 10~50%, and viscosity is 10~50mPa ﹒ s.
The object of the invention to solve the technical problems can also employ the following technical solutions further realization.
Antiseized slip agent of emulsion-type according to a kind of non-powder PVC gloves coating proposed by the present invention and preparation method thereof,
Wherein, the preparation method of the antiseized slip agent of described emulsion-type is comprised the following steps：
1) synthesis of aqueous silicon polyurethane
In parts by weight, 10~30 parts of polyester diol, 5~30 parts of polysiloxanes two are sequentially added in a kettle.
First alcohol, 0.5~2 part of polyhydroxy-alcohol, 1~7 part of hydrophilizing agent, 70 DEG C are warming up in the case where being sufficiently stirred for, and add 10~40 parts
Diisocyanate, is warming up to 75~85 DEG C and reacts 3~5 hours, is then cooled to 30~50 DEG C, adds 1~7 part of salt forming agent, into
It is divided into salt 5~10 minutes, adds 60 parts~200 parts deionized waters, immediately adds 1~10 part of chain extender, reaction 40~60
Discharge after minute, aqueous silicon polyurethane needed for being obtained；
2) synthesis of polyacrylate/silicon-based polyurethane complex emulsions
A. the preparation of pre-emulsion
Take 5~40 parts synthesized of aqueous silicon polyurethane, the deionized water of 20~40 parts of addition and 1~5 part of emulsification
Agent, is sufficiently stirred for 20~30 minutes, sequentially adds 10~60 parts of methacrylate-based monomers, 5~20 parts of esters of acrylic acids
Monomer, 0.1~3 part of diacrylate esters crosslinkers monomers and 0.5~5 part of hydrophilic monomer, are sufficiently stirred for emulsification and are obtained
Pre-emulsion；
B. prepared by the seed law of complex emulsions
10~20 parts of aqueous silicon polyurethane is added, 40~60 parts of deionized waters and 1~5 part of emulsifying agent is added, is stirred
10~20 parts of pre-emulsion is added after mixing, 1~2 part 10% of ammonium persulfate is added, 60~65 DEG C is heated to and is reacted 30~40 points
Clock, is then added dropwise remaining pre-emulsion, and while remaining 8~10 part 10% of ammonium persulfate is added dropwise, drips off in 3~4 hours,
Then heat to 85 DEG C and be incubated 1 hour, cold filtration discharging is obtained polyacrylate/silicon-based polyurethane complex emulsions.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
Polyester diol is polyadipate di-alcohols or poly- suberic acid di-alcohols or poly- decanedioic acid di-alcohols, and its molecular weight is preferred
500~4000；
Described polysiloxane binary alcohol contains the dimethyl silicone polymer of primary hydroxyl, its molecule for linear structure and two ends
Amount preferably 500~5000.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
The weight of polysiloxane binary alcohol accounts for the 10~50% of polyester diol gross weight.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
Polyhydroxy-alcohol is glycerine or trimethylolpropane or pentaerythrite；Described hydrophilizing agent is carboxylic diol or sulfonic group glycol；
Described diisocyanate is aliphatic diisocyanate or aromatic diisocyanate or alicyclic two isocyanic acid
Ester, preferred fat (cyclo) aliphatic diisocyanates or alicyclic diisocyanate；
Described salt forming agent is trimethylamine or triethylamine or triethanolamine or dimethylethanolamine；
It is ethylenediamine or hexamethylene diamine or cyclohexanediamine or succinyl hydrazine or AH that agent is practiced in described expansion.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
The preferred methyl methacrylate of methacrylate-based monomer or isobornyl methacrylate or EMA；
The preferred methyl acrylate of described acrylic ester monomer or ethyl acrylate or Butyl Acrylate Monomer；
The described preferred GDMA of diacrylate esters crosslinkers monomers or dimethacrylate third
Diol ester or tetramethylene dimethacrylate or dimethacrylate hexylene glycol ester or dimethacrylate decanediol ester；
The preferred pi-allyl epoxide hydroxylpropyl sulfonate of described hydrophilic monomer or methallylsulfonic acid salt or vinyl
Sulfonate or alkyl base phenol polyethers sulfate or polyoxyethylene base butanedioic acid sulfonate or allyl polyether sulfate.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
The glass transition temperature (Tg) of the acrylic resin in polyacrylate/silicon-based polyurethane complex emulsions is more than 65 DEG C.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
Emulsifying agent is anion emulsifier or nonionic emulsifier or the compounding of the two；Anion emulsifier is APEO alkyl phenol
Sulfate or dodecyl benzene sulfonate or lauryl sulfate or alkyl oxy diphenyl sulfonate；Nonionic emulsifier is pungent
Base phenol polyethenoxy ether or NPE.
Antiseized slip agent of emulsion-type of aforesaid a kind of non-powder PVC gloves coating and preparation method thereof, wherein, it is described
The compounding of anion emulsifier and nonionic emulsifier need to by a certain percentage can be only achieved optimum efficiency, anion emulsifier and non-
The amount ratio of ionic emulsifying agent is 1：8~8：1, preferably 1：4~4：1.
By above-mentioned technical proposal, the antiseized slip agent of emulsion-type and its system of a kind of non-powder PVC gloves coating of the invention
Preparation Method can reach suitable technological progress and practicality, and with the extensive value in industry, with prior art phase
Than with clear advantage and beneficial effect, it at least has following advantages：
(1), the invention provides a kind of polyacrylate/antiseized slip agent of silicon-based polyurethane complex emulsions, by the emulsion
In being added to non-powder PVC gloves formulation for coating material, can effectively replace the increasing cunning effect that wax and organic silicone oil are played, can also whole or portion
Point replace inorganic hard agent to give the good shaping of gloves, anti-adhesion characteristic, with not producing precipitation, after-tack gloves, no
Turn round the advantage of side and more excellent smooth series.
(2), preparation method of the present invention is simple, and manufacturing cost is relatively fewer, such that it is able to increase economic efficiency, what is used
In practicality and cost benefit, comply fully with really needed for industry development, quite with industrial utilization.
(3), the present invention can reach effect in practical use really, not only easy to use, and manufacturing process is easy, really ratio
Existing non-powder PVC gloves coating has more technological progress, and it can achieve the effect that and be also far from that prior art to be compared, more
Consumer demand can be met, be suitable to be widely popularized and used.
In sum, antiseized slip agent of emulsion-type of a kind of non-powder PVC gloves coating of the invention and preparation method thereof exists
Technically there is significant progress, and be really a new and innovative, progressive, practical new design with obvious good effect.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the present invention above and other objects, features and advantages can
Become apparent, below especially exemplified by preferred embodiment, describe in detail as follows.
Description of the drawings
Nothing
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Preferred embodiment, to the antiseized slip agent of emulsion-type according to a kind of non-powder PVC gloves coating proposed by the present invention and its preparation
Method, its specific embodiment, feature and its effect are described in detail as after.
A kind of technical scheme of antiseized slip agent of emulsion-type of non-powder PVC gloves coating of the present invention and preparation method thereof will
It is further reflected and described by detailed description below.
The present invention polyacrylate/silicon-based polyurethane complex emulsions in polyacrylate account for resin total amount 30~
80%, silicon-based polyurethane composition accounts for the 20~70% of resin total amount.Polyacrylate/silicon-based polyurethane of the present invention is combined
Emulsion synthesizes in two steps：
1) synthesis of aqueous silicon polyurethane
In parts by weight, 10~30 parts of polyester diol, 5~30 parts of polysiloxanes two are sequentially added in a kettle.
First alcohol, 0.5~2 part of polyhydroxy-alcohol, 1~7 part of hydrophilizing agent, 70 DEG C are warming up in the case where being sufficiently stirred for, and add 10~40 parts
Diisocyanate, is warming up to 75~85 DEG C and reacts 3~5 hours, is then cooled to 30~50 DEG C, adds 1~7 part of salt forming agent, into
It is divided into salt 5~10 minutes, adds 60 parts~200 parts deionized waters, immediately adds 1~10 part of chain extender, reaction 40~60
Discharge after minute, aqueous silicon polyurethane needed for being obtained.
2) synthesis of polyacrylate/silicon-based polyurethane complex emulsions
A. the preparation of pre-emulsion
Take 5~40 parts synthesized of aqueous silicon polyurethane, the deionized water of 20~40 parts of addition and 1~5 part of emulsification
Agent, is sufficiently stirred for 20~30 minutes, sequentially adds 10~60 parts of methacrylate-based monomers, 5~20 parts of esters of acrylic acids
Monomer, 0.1~3 part of diacrylate esters crosslinkers monomers and 0.5~5 part of hydrophilic monomer, are sufficiently stirred for emulsification and are obtained
Pre-emulsion.
B. prepared by the seed law of complex emulsions
10~20 parts of aqueous silicon polyurethane is added, 40~60 parts of deionized waters and 1~5 part of emulsifying agent is added, is stirred
10~20 parts of pre-emulsion is added after mixing, 1~2 part 10% of ammonium persulfate is added, 60~65 DEG C is heated to and is reacted 30~40 points
Clock, starts that remaining pre-emulsion is added dropwise, and starts that remaining 8~10 part 10% of ammonium persulfate is added dropwise, and drips off in 3~4 hours,
Then heat to 85 DEG C and be incubated 1 hour, cold filtration discharging is obtained polyacrylate/silicon-based polyurethane complex emulsions.
The present invention aqueous silicon polyurethane synthesis described in polyester diol be, for example, polyadipate di-alcohols,
The polyester diol such as poly- suberic acid di-alcohols and poly- decanedioic acid di-alcohols, molecular weight preferably 500~3000.Described poly- silicon
Oxygen alkane dihydroxylic alcohols is the dimethyl silicone polymer that primary hydroxyl is contained at linear two ends, molecular weight preferably 500~3000.Described is more
Hydroxyl alcohol can be selected from glycerine, trimethylolpropane and pentaerythrite etc..Described hydrophilizing agent can be from carboxylic diol and sulfonic acid
Select in base glycol.
Described diisocyanate can be from aliphatic diisocyanate, aromatic diisocyanate and alicyclic two isocyanic acid
Selection, preferred fat (cyclo) aliphatic diisocyanates and alicyclic diisocyanate in ester.
Described salt forming agent be organic amine, such as trimethylamine, triethylamine, triethanolamine, dimethylethanolamine etc..
Described expansion practices agent for diamine or hydrazine, such as ethylenediamine, hexamethylene diamine, cyclohexanediamine, succinyl hydrazine, adipyl
Hydrazine etc..
The preferred methyl methacrylate of described methacrylate-based monomer, isobornyl methacrylate, methyl-prop
Olefin(e) acid ethyl ester.The monomers such as the preferred methyl acrylate of acrylic ester monomer, ethyl acrylate, butyl acrylate.Diacrylate
The preferred GDMA of class crosslinkers monomers, dimethyl allene acid propylene glycol ester, dimethacrylate butanediol
Ester, dimethacrylate hexylene glycol ester, dimethacrylate decanediol ester etc..The preferred pi-allyl epoxide hydroxypropyl of hydrophilic monomer
Sulfonate, methallylsulfonic acid salt, vinylsulfonate, alkyl base phenol polyethers sulfate, polyoxyethylene base amber
Sour sulfonate, allyl polyether sulfate etc..
Glass transition temperature (the T of acrylic resin in described complex emulsionsg) at least should be higher than that 65 DEG C.Less than the temperature
Degree, may not have the sliding effect of antiseized increasing.
Described emulsifying agent is anion emulsifier, nonionic emulsifier or the compounding of the two.Anion emulsifier can be with
From APEO alkylphenol sulfate, dodecyl benzene sulfonate, lauryl sulfate, alkyl oxy diphenyl sulfonate etc.
Middle selection.Nonionic emulsifier can be selected from OPEO, NPE etc..
Described nonionic and the compounding of anion emulsifier need to by a certain percentage can be only achieved optimum efficiency, anion and
The amount ratio prioritizing selection 1 of nonionic emulsifier：8~8：1, preferably 1：4~4：1.
The particle diameter of described polyacrylate/silicon-based polyurethane complex emulsions from 10nm to 1000nm, solid content be 10~
50%, viscosity is 10~50mPa ﹒ s.
The glove coating sample of addition polyacrylate/silicon-based polyurethane complex emulsions is carried out precipitating test and gloves
After-tack and smoothness test, method of testing is as follows：
1) precipitation test
The coating sample for preparing with deionized water by 1：16 are diluted, and the Sample storage after dilution has in 1000ml
It is placed in plug graduated cylinder in 50 DEG C of baking ovens and stands observation precipitation, the corresponding calibration gauge of precipitation that precipitation capacity is produced with graduated cylinder bottom.
2) gloves after-tack test
The coating sample prepared with deionized water by 1：16 are diluted, and are gone to process PVC hands with the solvent or diluent after dilution
Set, in being then placed on 75 DEG C of baking ovens, every the adhesion situation of 24 hours observation gloves nexines in 72 hours.
3) glove bead quality test
The coating sample prepared with deionized water by 1：25 are diluted, and are gone to process on mould with the solvent or diluent after dilution
PVC glove, judged according to the torsion that gloves edge is stripped down from mould.Think good if side is not turned round, otherwise
For difference.
4) gloves smoothness test
Gloves carry out sensory evaluation to the smoothness of skin during dressing, and are divided into four grades：
1 grade:Slickness is poor；
2 grades：Slickness is general；
3 grades：Slickness is good；
4 grades：Slickness is excellent.
By the polyacrylate/antiseized slip agent of silicon-based polyurethane complex emulsions of the present invention for non-powder PVC gloves formula,
The good increasing cunning effect of wax and organic silicone oil is not only acted as, shaping characteristic that is also antiseized and contributing to crimping is dilute in height in addition
Release than using when there is no sedimentation problem.
The following examples only illustrate the design of example, but they can not limit the scope of the present invention, each decile and
Percentage is all based on percentage by weight.
Embodiment 1
(1) synthesis of aqueous silicon polyurethane
33.5 parts of Pol-2356 (hydroxyl value 54~56mg KOH/g, the life of Qingdao space field chemical industry are sequentially added in a kettle.
Produce), 22.4 parts of polysiloxane binary alcohol H-Si 2311 (hydroxyl value 40~50mg KOH/g, goldschmidt chemical corporation), 1 part of trihydroxy methyl
The hydrophilizing agent (Paasche support company of Sweden) of propane (Paasche support company of Sweden), 4 parts of dihydromethyl propionic acids, is being sufficiently stirred for lower intensification
To 70 DEG C, 20 parts of IPDI is added, be warming up to 75~85 DEG C and react 3~5 hours, be then cooled to 50
DEG C, 2 parts of salt forming agents are added, into salt 10 minutes, 120 parts of deionized waters are added, 3 parts of chain extenders are immediately added, react 60 points
Discharge after clock, aqueous silicon polyurethane needed for being obtained.
(2) synthesis of polyacrylate/silicon-based polyurethane complex emulsions
A. the preparation of pre-emulsion
10 parts synthesized of aqueous silicon polyurethane is taken, 40 parts of deionized water and 2 parts of emulsifying agent (wherein alkyl is added
1.5 parts of epoxide diphenyl sulfonate, NPE 0.5), it is sufficiently stirred for 30 minutes, sequentially add 45 parts of methyl-props
E pioic acid methyl ester, 5 parts of acrylic acid ethyl ester monomers, 1 part of ethylene glycol diacrylate and 3 parts of polyoxyethylene base phenol polyethers sulfuric acid
Salt, is sufficiently stirred for emulsifying prepared pre-emulsion.
B. prepared by the seed law of complex emulsions
20 parts of aqueous silicon polyurethane is added, 40 parts of deionized waters and 2 parts of emulsifying agent (wherein alkyl oxy two is added
1.5 parts of benzene sulfonate, NPE 0.5), 10 parts of pre-emulsion is added after stirring, add 2 part 10% of persulfuric acid
Ammonium, is heated to 60~65 DEG C and reacts 30 minutes, starts that remaining pre-emulsion is added dropwise, and starts that remaining 10 part 10% of mistake is added dropwise
Ammonium sulfate, drips off in 3~4 hours, then heats to 85 DEG C and is incubated 1 hour, cold filtration discharging, prepared polyacrylate/contain
Silicon polyurethane complex emulsions.
Embodiment 2
The step of repeating embodiment 1 method, simply in the synthesis of aqueous silicon polyurethane, with 22.4 parts of POL-2345
(hydroxyl value 54~56mg KOH/g, Qingdao space field Chemical Manufacture) replaces 22.4 parts of polysiloxane binary alcohols of embodiment 1, and other are equal
With embodiment 1.
Polyacrylate/silicon-based polyurethane complex emulsions prepared by the method for the present invention are applied by following non-powder PVC gloves
Material formula is prepared：Aqueous 40 parts of aliphatic polyester type polyurethane BAYHYDROL110 (35% solid content, Beyer Co., Ltd), gathers
Acrylate/10 parts of silicon-based polyurethane complex emulsions, 2 parts of levelling agent 1120 (Mitugao New Material Group), defoamer
1 part of foamstar 330 (Ke Ning chemical companies), thickener ASE-604.5 parts, 0.5 part of ammoniacal liquor, 42 parts of deionized water.
The compound method of control sample is ibid identical, except for the difference that replaced with precipitated calcium carbonate the present invention polyacrylate/
The antiseized slip agent of silicon-based polyurethane complex emulsions, it is possible to additionally incorporate 3 parts of wax emulsion.
The preparation of blank sample is also ibid identical, and the antiseized slip agent of macromolecule for being simply not added with any present invention is inorganic with other
Hard agent.
The test result of any of the above sample is listed in table 1, table 2 and table 3.
The precipitation test of the diluted sample of table 1
The gloves of table 2 after-tack test
The gloves of table 3 turn round side and smoothness test
As can be seen that polyacrylate/the silicon-based polyurethane for adding the present invention in glove coating is multiple from table 1,2 and 3
The antiseized slip agent of emulsion is closed, without any precipitation in 7 days in the diluted sample of highly diluted ratio, and adds the sample of inorganic hard agent
Just there is substantial amounts of precipitation after 1 day；Precipitation is not only produced, the antiseized slip agent of composite emulsion type of the silicone-containing of the present invention is also
Have gloves is not after-tacked, do not turn round side and smooth series be better than addition inorganic hard agent and wax sample.Embodiment 2 will be without silica
Although the antiseized slip agent of alkane be added in coating also whether there is precipitation, do not after-tack, preferable glove bead the advantages of, its feel well
Sliding series only has 2 grades.Added by the polyacrylate/antiseized slip agent of silicon-based polyurethane complex emulsions of the visible present invention of embodiment 1
It is added in non-powder PVC gloves coating to have and does not produce precipitation, after-tack gloves, do not turn round side and more excellent smooth series and make
The crimping that gloves have had.
A kind of technology wound of the antiseized slip agent of emulsion-type of non-powder PVC gloves coating of the invention described above and preparation method thereof
Newly, many saving graces are respectively provided with for technical staff of the same trade now, and there is technological progress really.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when making a little change or modification using the technology contents of the disclosure above
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
Any simple modification, equivalent variations and the modification made to above example, still falls within the range of technical solution of the present invention.
Claims (7)
1. the preparation method of the antiseized slip agent of emulsion-type of a kind of non-powder PVC gloves coating, it is characterised in that including following step
Suddenly：
1) synthesis of aqueous silicon polyurethane
In parts by weight, 10~30 parts of polyester diol, 5~30 parts of polysiloxanes binary are sequentially added in a kettle.
Alcohol, 0.5~2 part of polyhydroxy-alcohol, 1~7 part of hydrophilizing agent, 70 DEG C are warming up in the case where being sufficiently stirred for, and add the two of 10~40 parts
Isocyanates, is warming up to 75~85 DEG C and reacts 3~5 hours, is then cooled to 30~50 DEG C, adds 1~7 part of salt forming agent, composition
Into salt 5~10 minutes, 60 parts~200 parts deionized waters are added, immediately add 1~10 part of chain extender, react 40~60 points
Discharge after clock, aqueous silicon polyurethane needed for being obtained；
2) synthesis of polyacrylate/silicon-based polyurethane complex emulsions
A. the preparation of pre-emulsion
5~40 parts synthesized of aqueous silicon polyurethane is taken, the deionized water and 1~5 part of emulsifying agent of 20~40 parts of addition are filled
Point stirring 20~30 minutes, sequentially add 10~60 parts of methacrylate-based monomers, 5~20 parts of acrylic ester monomers,
0.1~3 part of diacrylate esters crosslinkers monomers and 0.5~5 part of hydrophilic monomer, are sufficiently stirred for emulsification and pre- breast are obtained
Liquid；
B. prepared by the seed law of complex emulsions
10~20 parts of aqueous silicon polyurethane is added, 40~60 parts of deionized waters and 1~5 part of emulsifying agent is added, after stirring
10~20 parts of pre-emulsion is added, 1~2 part 10% of ammonium persulfate is added, 60~65 DEG C is heated to and is reacted 30~40 minutes, so
After be added dropwise remaining pre-emulsion, and remaining 8~10 part 10% of ammonium persulfate is added dropwise, drip off in 3~4 hours, then heat up
1 hour is incubated to 85 DEG C, cold filtration discharging is obtained polyacrylate/silicon-based polyurethane complex emulsions.
2. the preparation method of the antiseized slip agent of emulsion-type of non-powder PVC gloves coating according to claim 1, its feature
It is：Described polyester diol is polyadipate di-alcohols or poly- suberic acid di-alcohols or poly- decanedioic acid di-alcohols；
Described polysiloxane binary alcohol is the dimethyl silicone polymer that primary hydroxyl is contained at linear structure and two ends.
3. the preparation method of the antiseized slip agent of emulsion-type of described non-powder PVC gloves coating is required according to claim 1, its
It is characterised by：The weight of polysiloxane binary alcohol accounts for the 10~50% of polyester diol gross weight.
4. the preparation method of the antiseized slip agent of emulsion-type of non-powder PVC gloves coating according to claim 1, its feature
It is：Described polyhydroxy-alcohol is glycerine or trimethylolpropane or pentaerythrite；
Described hydrophilizing agent is carboxylic diol or sulfonic group glycol；
Described diisocyanate is aliphatic diisocyanate or aromatic diisocyanate or alicyclic diisocyanate；
Described salt forming agent is trimethylamine or triethylamine or triethanolamine or dimethylethanolamine；
Described chain extender is ethylenediamine or hexamethylene diamine or cyclohexanediamine or succinyl hydrazine or AH.
5. the preparation method of the antiseized slip agent of emulsion-type of non-powder PVC gloves coating according to claim 1, its feature
It is：Described methacrylate-based monomer is methyl methacrylate or isobornyl methacrylate or methacrylic acid
Ethyl ester；
Described acrylic ester monomer is methyl acrylate or ethyl acrylate or Butyl Acrylate Monomer；
Described diacrylate esters crosslinkers monomers are GDMA or dimethyl allene acid propylene glycol ester
Or tetramethylene dimethacrylate or dimethacrylate hexylene glycol ester or dimethacrylate decanediol ester；
Described hydrophilic monomer is pi-allyl epoxide hydroxylpropyl sulfonate or methallylsulfonic acid salt or vinylsulfonate
Or alkyl base phenol polyethers sulfate or polyoxyethylene base butanedioic acid sulfonate or allyl polyether sulfate.
6. the preparation method of the antiseized slip agent of emulsion-type of non-powder PVC gloves coating according to claim 1, its feature
It is：The glass transition temperature (Tg) of the acrylic resin in described polyacrylate/silicon-based polyurethane complex emulsions is big
In 65 DEG C.
7. the preparation method of the antiseized slip agent of emulsion-type of non-powder PVC gloves coating according to claim 1, its feature
It is：In gained polyacrylate/silicon-based polyurethane complex emulsions, polyacrylate accounts for the 30~80% of resin total amount, siliceous
Polyurethane accounts for the 20~70% of resin total amount；The particle diameter of the polyacrylate/silicon-based polyurethane complex emulsions be 10nm~
1000nm, solid content is 10~50%, and viscosity is 10~50mPa.s.
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| CN111961294B (en) * | 2020-08-20 | 2022-10-14 | 唐山鸿蕴医疗用品有限公司 | PVC (polyvinyl chloride) glove comfortable to wear and preparation method thereof |
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| CN101575398B (en) * | 2009-06-05 | 2011-04-20 | 天津碧海蓝天水性高分子材料有限公司 | Organosilicon-modified acrylate emulsion and preparation method of coating agent for powder-free gloves |
| CN102807810B (en) * | 2011-05-31 | 2015-02-18 | 北京优美特纳米材料科技有限公司 | WPU (Water-soluble Polyurethane) coating applied to powder-free PVC (Poly Vinyl Chloride) glove and preparation method thereof |
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