CN108084616A - A kind of ether modified PVA resin and preparation method thereof - Google Patents
A kind of ether modified PVA resin and preparation method thereof Download PDFInfo
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- CN108084616A CN108084616A CN201711384264.1A CN201711384264A CN108084616A CN 108084616 A CN108084616 A CN 108084616A CN 201711384264 A CN201711384264 A CN 201711384264A CN 108084616 A CN108084616 A CN 108084616A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The phenomenon that being specially a kind of ether modified PVA resin and preparation method thereof the present invention relates to moldable resin field, sticking together from can preferably avoiding in production process slurry when viscosity is larger.Its drip irrigation device is, including following parts by weight of component：50 ~ 90 parts of polyvinyl alcohol；15 45 parts of plasticizer；0.05 2 parts of surfactant；It dehisces 0.01 10 parts of agent；0.01 15 parts of heat stabilizer；0.05 5 parts of lubricant；0.05 5 parts of antioxidant；0.05 2 parts of modifying agent.Ether in modifying agent is introduced into PVA resins by above-mentioned technical proposal of the present invention, and ether, which belongs to, is freely rotatable structure, PVA resins are modified with this, reduce the viscosity during its manufacturing, so as to, generation slurry in its production process is avoided to act the phenomenon that sticks together, influences product quality.
Description
Technical field
The present invention relates to moldable resin field, more particularly to a kind of ether modified PVA resin and preparation method thereof.
Background technology
PVA (polyvinyl alcohol) is a kind of well-known widely used high molecular weight water soluble polymer, this polymer
Manufactured film is applied in water transfer, embroidery, non-returnable container etc., also with biodegradable, while is also had to various volatilizations
Property gas, barrier, it is oil resistant, antistatic, therefore paid attention to by people are more next, have a large amount of engineers and technicians' inputs a large amount of both at home and abroad
Energy developmental research.
Publication No. is that the patent of invention of CN102286183A discloses a kind of plasticity PVA resins and preparation method thereof, should
Kind plasticity PVA resins are mainly by polyvinyl alcohol, plasticizer, surfactant, anti-hydrolysis agent, silicone powder and lubricant etc.
Composition, by the way that various raw materials are added in high speed mixer, stirring is heated simultaneously, and afterwards, granulation obtains plasticity PVA resins.
But it during using this kind of technique productions plasticity PVA resin, easily because resin viscosity is larger, causes to give birth to
Slurry acts the phenomenon that sticks together during production, influences the quality of production of product.
The content of the invention
The first object of the present invention is to provide a kind of ether modified PVA resin, can preferably avoid in production process
Slurry when viscosity is larger from the phenomenon that sticking together.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of ether modified PVA resin, including following parts by weight of component：
By using above-mentioned technical proposal, plasticizer weakens the stress of polymer molecule interchain, increases polymer molecular chain
Mobility, reduce polymer molecular chain crystallinity, make the plasticity of polyvinyl alcohol increase；Surfactant makes polyvinyl alcohol molten
The interface state of liquid system changes, to promote the water soluble characteristic of polyvinyl alcohol；Agent of dehiscing can effectively improve the opening of film
Performance；Heat stabilizer can reduce PVA resin surface tension, increase its stability in a high temperauture environment；Antioxidant can prolong
Progress that is slow or inhibiting polymer oxidation process, prevents the aging of PVA resins；PVA resins are modified using modifying agent, are dropped
Viscosity during its low manufacturing, so as to which generation slurry in its production process be avoided to act the phenomenon that sticks together, influence product quality.
Further, the modifying agent is cellulose ether or Isosorbide-5-Nitrae-dioxanes.
By using above-mentioned technical proposal, the ether in cellulose ether or Isosorbide-5-Nitrae-dioxanes is introduced into PVA resins, ether
Belong to and be freely rotatable structure, so as to which the viscosity of PVA resins be greatly lowered.
Further, the polyvinyl alcohol alcoholysis degree is 80%-90%.
By using above-mentioned technical proposal, its adhesion strength of the relatively low polyvinyl alcohol of alcoholysis degree is relatively low, 20
DEG C or so cold water in i.e. can dissolve, suitable for produce cold water material PVA resins.
Further, the polyvinyl alcohol is that alcoholysis degree is 80%-90% and the polyvinyl alcohol of 90%-100%
Object.
By using above-mentioned technical proposal, the polyvinyl alcohol of two kinds of different alcoholysis degrees is mixed, for producing hot water
Molten PVA resins, solubility property is preferable, and quality is relatively stablized.
Further, the plasticizer is glycerine, triethyl citrate, lemon diethyl phthalate, propylene glycol or N- ethyls
Benzsulfamide.
It by using above-mentioned technical proposal, is combined using the dipolar forces and resin of glycerine etc., weakens molecular resin
Between Van der Waals force, block the polar portion between polymer molecule, be allowed to not occur polarity connection, enhance the plastic of polymer
Property.
Further, the heat stabilizer is calcium-zinc stabilizer, tin stabilizer or rare-earth stabilizer.
By using above-mentioned technical proposal, aforementioned stable agent has preferable thermal stability and photostability, and introduces
The hydrogen bond that stabilizer can overcome polyvinyl alcohol, hydroxyl and polyalcohols plasticizer to generate is stated, reduces the generation of insoluble matter, is reduced
Crystallinity is conducive to produce and process.
Further, the lubricant includes in-lubricant and external lubricant, and the in-lubricant is oleamide, 12
Acid glyceride or hexadecylic acid glyceride, the external lubricant are polyethylene wax or polyamide wax.
By using above-mentioned technical proposal, interior lubrication can be evenly spread between strand, so as in Polymer Processing
The internal friction of polymer molecule interchain is reduced in the process, is improved the mobility of polymer, is improved product surface finish；It is and outer
Lubrication can reduce interface friction of the polymer with processing and forming machinery surface in molding process, and effect is a kind of boundary
Face lubricates, smaller with the compatibility of polymer, is easy in process from the interior shifting of polymer to surface, at interface
Place forms a lubricant molecule layer.
Further, the antioxidant is antioxidant 1010, antioxidant CA or antioxidant DNP.
By using above-mentioned technical proposal, antioxidant is as a kind of reducing agent, in the presence of oxygen, is reacted first with oxygen,
Antioxidant is aoxidized in itself, to protect PVA resins, thus, it is possible to delay or inhibit the progress of PVA resin oxidation process, is prevented
The aging of PVA resins.
Further, the agent of dehiscing is starch or talcum powder.
By using above-mentioned technical proposal, lumpd using starch or talcum powder to reduce film, it avoided to be adhered together,
Cause to be difficult to separate in process.
It is a further object of the present invention to provide a kind of preparation methods of ether modified PVA resin, comprise the following steps：S1：
By 50-90 parts of polyvinyl alcohol, 0.05-2 parts of surfactants, 0.01-10 parts of agent of dehiscing, 0.01-15 parts of heat stabilizers, 0.05-5
Part lubricant, 0.05-5 parts of antioxidant and 0.05-2 parts of modifying agent mixing, stirring are heated to 70 DEG C -80 DEG C simultaneously；S2：By 15-
45 parts of plasticizer are added in S1 mixtures, continue to stir while be heated to 90 DEG C -110 DEG C；S3：By mixture in S2 as granulation
It is granulated in machine, you can obtain ether modified PVA resin.
By using above-mentioned technical proposal, after other materials next to plasticizers are mixed, agitating and heating treats temperature
After degree rises to 70 DEG C -80 DEG C, then plasticizer is added in thereto, plasticizer volatilization loss is caused to avoid the relatively early plasticizer that adds in,
Make the reduction of raw material utilization rate.
In conclusion the invention has the advantages that：
1. the ether in cellulose ether or Isosorbide-5-Nitrae-dioxanes is introduced into PVA resins, ether, which belongs to, is freely rotatable structure, with this
PVA resins are modified, reduce the viscosity during its manufacturing, so as to avoid generating slurry in its production process
Stick together phenomenon, influences product quality；
2. two kinds of lubricating systems of interior lubrication and outer lubrication are respectively adopted to handle PVA resins, so as to which interior profit can either be utilized
The sliding mobility that polymer is improved from molecular level, is improved product surface finish, and can added using outer lubrication molecule
It is easy to during work from the interior shifting of polymer to surface, a lubricant molecule layer is formed in interface, so as to reduce
Interface friction of the polymer in molding process with processing and forming machinery surface；
3. production process after temperature rises to a certain degree, then adds in plasticizer thereto, made to avoid the relatively early plasticizer that adds in
Into plasticizer volatilization loss, make the reduction of raw material utilization rate.
Specific embodiment
The present invention is described in further detail with reference to embodiments.
The present invention discloses a kind of ether modified PVA resins and preparation method thereof.
Embodiment 1：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol alcoholysis degree is 80%, and plasticizer selects glycerine, and surfactant is polyethylene glycol, is dehisced
Agent is starch, and heat stabilizer is calcium-zinc stabilizer, and in-lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects
With antioxidant 1010, modifying agent is cellulose ether.
Its preparation method is：
S1：By 50 parts of polyvinyl alcohol, 1.02 parts of polyethylene glycol, 3 parts of starch, 8 parts of calcium-zinc stabilizers, 1.5 parts of oleamides and
1.5 parts of polyethylene waxes, 0.08 part of antioxidant 1010 and 2 parts of cellulose ether mixing, stirring are heated to 70 DEG C simultaneously；
S2：20 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 90 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 2：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol alcoholysis degree is 90%, and plasticizer selects triethyl citrate, and surfactant is lauric acid
Potassium, for talcum powder, heat stabilizer is tin stabilizer for agent of dehiscing, and in-lubricant is lauric acid/dodecanoic acid glyceride, and external lubricant is polyamide
Wax, antioxidant select antioxidant CA, and modifying agent is Isosorbide-5-Nitrae-dioxanes.
Its preparation method is：
S1：By 70 parts of polyvinyl alcohol, 1 part of potassium laurate, 5 parts of talcum powder, 4 parts of tin stabilizers, 0.6 portion of lauric acid/dodecanoic acid glyceride and
0.6 part of polyamide wax, 5 parts of antioxidant CAs and 1 part of Isosorbide-5-Nitrae-dioxanes mixing, stirring are heated to 75 DEG C simultaneously；
S2：15 parts of triethyl citrates are added in S1 mixtures, continue to stir while be heated to 95 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 3：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol alcoholysis degree is 85%, and plasticizer selects lemon diethyl phthalate, and surfactant is lauric acid
Potassium, for talcum powder, heat stabilizer is tin stabilizer for agent of dehiscing, and in-lubricant is hexadecylic acid glyceride, and external lubricant is polyamide
Wax, antioxidant select antioxidant DNP, and modifying agent is Isosorbide-5-Nitrae-dioxanes.
Its preparation method is：
S1：By 80 parts of polyvinyl alcohol, 0.05 part of potassium laurate, 3 parts of talcum powder, 8 parts of tin stabilizers, 2.5 parts of hexadecylic acid glyceride
With 2.5 parts of polyamide waxes, 1.5 parts of antioxidant DNP and 0.8 part of Isosorbide-5-Nitrae-dioxanes mixing, stirring is heated to 80 DEG C simultaneously；
S2：30 parts of lemon diethyl phthalates are added in S1 mixtures, continue to stir while be heated to 110 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 4：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 80% and the polyvinyl alcohol material of alcoholysis degree 90%, the two ratio are 4:
1, plasticizer selects propylene glycol, and surfactant is potassium laurate, and for starch, heat stabilizer is rare-earth stabilizer, interior for agent of dehiscing
Lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is Isosorbide-5-Nitrae-dioxanes.
Its preparation method is：
S1：By 65 parts of polyvinyl alcohol material, 0.7 part of potassium laurate, 0.01 part of starch, 15 parts of rare-earth stabilizers, 0.4 part of oleic acid
Amide and 0.4 part of polyethylene wax, 2.4 parts of antioxidant 1010s and 1.3 parts of Isosorbide-5-Nitraes-dioxanes mixing, stirring are heated to 77 DEG C simultaneously；
S2：40 parts of propylene glycol are added in S1 mixtures, continue to stir while be heated to 100 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 5：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 90% and the polyvinyl alcohol material of alcoholysis degree 100%, the two ratio are 2:
1, plasticizer selects N- ethyl beneznesulfonamides, and surfactant is polyethylene glycol, and for starch, heat stabilizer is calcium-zinc for agent of dehiscing
Stabilizer, in-lubricant are oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is fibre
The plain ether of dimension.
Its preparation method is：
S1：By 90 parts of polyvinyl alcohol material, 1.2 parts of polyethylene glycol, 4 parts of starch, 3 parts of calcium-zinc stabilizers, 1.8 parts of oleic acid acyls
Amine and 1.8 parts of polyethylene waxes, 3 parts of antioxidant 1010s and 0.05 part of cellulose ether mixing, stirring are heated to 75 DEG C simultaneously；
S2：24 parts of N- ethyl beneznesulfonamides are added in S1 mixtures, continue to stir while be heated to 105 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 6：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 88% and the polyvinyl alcohol material of alcoholysis degree 99%, the two ratio are 4:
1, plasticizer selects glycerine, and surfactant is polyethylene glycol, and for starch, heat stabilizer is calcium-zinc stabilizer, interior for agent of dehiscing
Lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is cellulose ether.
Its preparation method is：
S1：By 80 parts of polyvinyl alcohol material, 1.8 parts of polyethylene glycol, 7 parts of starch, 12 parts of calcium-zinc stabilizers, 1.8 parts of oleic acid acyls
Amine and 1.8 parts of polyethylene waxes, 0.05 part of antioxidant 1010 and 1 part of cellulose ether mixing, stirring are heated to 78 DEG C simultaneously；
S2：45 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 98 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 7：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 85% and the polyvinyl alcohol material of alcoholysis degree 95%, the two ratio are 4:
1, plasticizer selects glycerine, and surfactant is polyethylene glycol, and for starch, heat stabilizer is calcium-zinc stabilizer, interior for agent of dehiscing
Lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is cellulose ether.
Its preparation method is：
S1：By 80 parts of polyvinyl alcohol material, 2 parts of polyethylene glycol, 7 parts of starch, 12 parts of calcium-zinc stabilizers, 0.025 part of oleic acid acyl
Amine and 0.025 part of polyethylene wax, 0.05 part of antioxidant 1010 and 1 part of cellulose ether mixing, stirring are heated to 73 DEG C simultaneously；
S2：45 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 94 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 8：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 85% and the polyvinyl alcohol material of alcoholysis degree 95%, the two ratio are 4:
1, plasticizer selects glycerine, and surfactant is polyethylene glycol, and for starch, heat stabilizer is calcium-zinc stabilizer, interior for agent of dehiscing
Lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is cellulose ether.
Its preparation method is：
S1：By 80 parts of polyvinyl alcohol material, 2 parts of polyethylene glycol, 10 parts of starch, 0.01 part of calcium-zinc stabilizer, 0.025 part of oil
Sour amide and 0.025 part of polyethylene wax, 0.05 part of antioxidant 1010 and 1 part of cellulose ether mixing, stirring are heated to 76 DEG C simultaneously；
S2：45 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 108 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 9：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 83% and the polyvinyl alcohol material of alcoholysis degree 93%, the two ratio are 4:
1, plasticizer selects glycerine, and surfactant is polyethylene glycol, and for starch, heat stabilizer is calcium-zinc stabilizer, interior for agent of dehiscing
Lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is cellulose ether.
Its preparation method is：
S1：By 55 parts of polyvinyl alcohol material, 2 parts of polyethylene glycol, 10 parts of starch, 0.01 part of calcium-zinc stabilizer, 0.025 part of oil
Sour amide and 0.025 part of polyethylene wax, 0.05 part of antioxidant 1010 and 1 part of cellulose ether mixing, stirring are heated to 76 DEG C simultaneously；
S2：18 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 108 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Embodiment 10：
A kind of ether modified PVA resin, including following parts by weight of component：
Wherein, polyvinyl alcohol is that alcoholysis degree is 83% and the polyvinyl alcohol material of alcoholysis degree 93%, the two ratio are 4:
1, plasticizer selects glycerine, and surfactant is polyethylene glycol, and for starch, heat stabilizer is calcium-zinc stabilizer, interior for agent of dehiscing
Lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects antioxidant 1010, and modifying agent is cellulose ether.
Its preparation method is：
S1：By 55 parts of polyvinyl alcohol material, 2 parts of polyethylene glycol, 10 parts of starch, 0.01 part of calcium-zinc stabilizer, 0.025 part of oil
Sour amide and 0.025 part of polyethylene wax, 0.05 part of antioxidant 1010 and 1.8 parts of cellulose ether mixing, stirring are heated to 78 simultaneously
℃；
S2：18 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 105 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Blank test：
A kind of PVA resins, including following parts by weight of component：
Wherein, polyvinyl alcohol alcoholysis degree is 80%, and plasticizer selects glycerine, and surfactant is polyethylene glycol, is dehisced
Agent is starch, and heat stabilizer is calcium-zinc stabilizer, and in-lubricant is oleamide, and external lubricant is polyethylene wax, and antioxidant selects
Use antioxidant 1010.
Its preparation method is：
S1：By 50 parts of polyvinyl alcohol, 1.02 parts of polyethylene glycol, 3 parts of starch, 8 parts of calcium-zinc stabilizers, 1.5 parts of oleamides and
1.5 parts of polyethylene waxes, 0.08 part of antioxidant 1010 and 2 parts of cellulose ether mixing, stirring are heated to 70 DEG C simultaneously；
S2：20 parts of glycerine are added in S1 mixtures, continue to stir while be heated to 90 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
Detection method：
Viscosity：It is measured according to GB 2794-81 adhesive viscosity measurement methods；
Shear strength：It is measured according to GB/T 7124-2008-T adhesive tensile shear strengths assay method；
The water-soluble time：It is measured according to GB/T 33323-2016 plastics, the water-soluble assay method of liquid phenolic resin.
Testing result is as shown in the table：
| Number | MPa.s/25 DEG C of viscosity | Shear strength MPa | Water-soluble s/60 DEG C of the time |
| Embodiment 1 | 15000-25000 | 90-100 | 80-90 |
| Embodiment 2 | 17800-28800 | 87-100 | 84-91 |
| Embodiment 3 | 16800-25300 | 90-100 | 92-94 |
| Embodiment 4 | 16000-28500 | 90-110 | 84-87 |
| Embodiment 5 | 16900-29700 | 85-93 | 84-87 |
| Embodiment 6 | 15000-23300 | 84-93 | 78-83 |
| Embodiment 7 | 16300-27500 | 98-106 | 78-85 |
| Embodiment 8 | 15000-28000 | 85-97 | 79-90 |
| Embodiment 9 | 17000-28000 | 86-94 | 80-89 |
| Embodiment 10 | 18000-30000 | 92-100 | 80-86 |
| Blank test | 20000-30000 | 95-108 | 90-95 |
As seen from the above table, after being modified using modifying agent to PVA resins, the resin viscosity at identical temperature is declined,
The water-soluble time shortens, and shear strength is reduced, so that production process more successfully carries out, product quality can be carried
It rises.PVA resins are produced particularly under the conditions of embodiment 6, product viscosity is relatively low, and shear strength is also smaller, while when its is water-soluble
Between it is shorter.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of ether modified PVA resin, it is characterised in that：Including following parts by weight of component：
50 ~ 90 parts of polyvinyl alcohol；
15-45 parts of plasticizer；
0.05-2 parts of surfactant；
It dehisces 0.01-10 parts of agent；
0.01-15 parts of heat stabilizer；
0.05-5 parts of lubricant；
0.05-5 parts of antioxidant；
0.05-2 parts of modifying agent.
2. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The modifying agent is cellulose ether
Or Isosorbide-5-Nitrae-dioxanes.
3. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The polyvinyl alcohol alcoholysis degree is
80%-90%。
4. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The polyvinyl alcohol is alcoholysis degree
For the polyvinyl alcohol mixture of 80%-90% and 90%-100%.
5. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The plasticizer for glycerine,
Triethyl citrate, lemon diethyl phthalate, propylene glycol or N- ethyl beneznesulfonamides.
6. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The heat stabilizer is steady for calcium-zinc
Determine agent, tin stabilizer or rare-earth stabilizer.
7. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The lubricant includes interior lubrication
Agent and external lubricant, the in-lubricant are oleamide, lauric acid/dodecanoic acid glyceride or hexadecylic acid glyceride, and the external lubricant is
Polyethylene wax or polyamide wax.
8. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The antioxidant is antioxidant
1010th, antioxidant CA or antioxidant DNP.
9. a kind of ether modified PVA resin according to claim 1, it is characterised in that：The agent of dehiscing is starch or cunning
Mountain flour.
10. a kind of ether modified PVA process for preparing resins, it is characterised in that：Comprise the following steps：
S1：By 50-90 parts of polyvinyl alcohol, 0.05-2 parts of surfactants, 0.01-10 parts of agent of dehiscing, 0.01-15 parts of thermostabilizations
Agent, 0.05-5 parts of lubricants, 0.05-5 parts of antioxidant and 0.05-2 parts of modifying agent mixing, stirring are heated to 70 DEG C -80 DEG C simultaneously；
S2：15-45 parts of plasticizer are added in S1 mixtures, continue to stir while be heated to 90 DEG C -110 DEG C；
S3：By mixture in S2 as being granulated in comminutor, you can ether modified PVA resin.
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| CN113493592A (en) * | 2020-03-19 | 2021-10-12 | 中国石油化工股份有限公司 | Polyvinyl alcohol masterbatch having excellent hue |
| CN113493591A (en) * | 2020-03-19 | 2021-10-12 | 中国石油化工股份有限公司 | Polyvinyl alcohol master batch and preparation method thereof |
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| CN113493592A (en) * | 2020-03-19 | 2021-10-12 | 中国石油化工股份有限公司 | Polyvinyl alcohol masterbatch having excellent hue |
| CN113493591A (en) * | 2020-03-19 | 2021-10-12 | 中国石油化工股份有限公司 | Polyvinyl alcohol master batch and preparation method thereof |
| CN113493591B (en) * | 2020-03-19 | 2023-01-03 | 中国石油化工股份有限公司 | Polyvinyl alcohol master batch and preparation method thereof |
| CN113493592B (en) * | 2020-03-19 | 2023-01-03 | 中国石油化工股份有限公司 | Polyvinyl alcohol master batch with excellent hue |
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