CN108659409A - A kind of high temperature resistant Corvic and preparation method thereof - Google Patents
A kind of high temperature resistant Corvic and preparation method thereof Download PDFInfo
- Publication number
- CN108659409A CN108659409A CN201810643677.5A CN201810643677A CN108659409A CN 108659409 A CN108659409 A CN 108659409A CN 201810643677 A CN201810643677 A CN 201810643677A CN 108659409 A CN108659409 A CN 108659409A
- Authority
- CN
- China
- Prior art keywords
- dispersant
- corvic
- preparation
- added
- mass ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F14/00—Homopolymers and 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 a halogen
- C08F14/02—Monomers containing chlorine
- C08F14/04—Monomers containing two carbon atoms
- C08F14/06—Vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
Abstract
The present invention provides a kind of high temperature resistant Corvics and preparation method thereof, Corvic is obtained by the reaction by polymerizable raw material of vinyl chloride monomer in the present invention, the first dispersant, the second dispersant and third dispersant are sequentially added step by step to carry out polymerisation step by step, obtain the strand of different length, promote strand winding, makes it have heat-resisting quantity；Corvic is mixed with chlorinated paraffin, silica aerogel powder, calcium stearate, ricinoleic acid calcium heat, is squeezed out, and further increases the high temperature resistance of product.
Description
Technical field
The present invention relates to resin making technique fields, more particularly to a kind of high temperature resistant Corvic and its preparation side
Method.
Background technology
Polyvinyl chloride true qualities are yellowish translucent, and transparency is better than polyethylene, polypropylene, is worse than polystyrene, with
Auxiliary dosage is different, is divided into soft, hard polyvinyl chloride, and soft goods are soft and tough, and the hardness of boardy product is higher than low density polyethylene (LDPE), and low
In polypropylene, albinism is will appear at flexion；
In the world polyvinylchloride production polymerization technique there are mainly five types of, i.e., suspension method, emulsion method, substance law, micro suspension and
Solution polymerization process；Wherein process for suspension polymerization is always industrial main technique, most homopolymerizations and copolymerized product
All it is to use process for suspension polymerization；Specifically, by vinyl chloride monomer individually or together with copolymerizable comonomer with
Emulsifier, buffer and polymerization initiator mixing, and microsuspension polymerization, emulsion polymerization, seeding polymerization etc. are carried out to the mixture
To prepare Corvic latex, dry latex, you can obtain Corvic in the form of particle；
Polyvinyl chloride is the second largest plastics variety for being only second to polyethylene in the world at present, and energy consumption low, corrosion-resistant with price
The features such as low, also has excellent electrical insulating property, anti-flammability and good wearability, plasticity, still, polyvinyl chloride it is heat-resisting
Property is not fine, and anti-aging property is not good enough, and service life is short, limits its scope of application.
Invention content
Present invention aim to provide a kind of high temperature resistant Corvic and preparation method thereof, have good resistance to
High-temperature behavior；
To achieve the above object, the present invention is achieved by the following scheme：
A kind of preparation method of high temperature resistant Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 60~70 DEG C；
（3）Third dispersant is added when reaching 20~30% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, terminates poly-
Reaction is closed, unreacted monomer is recycled, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1:0.2~0.3:0.1~0.2:0.05~0.06:0.05~0.06 is added the mixed machine of heat, at 150~180 DEG C
Under the conditions of premixed, dried, be then fed into extruder for shaping, obtain a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixing of hydroxypropyl methyl cellulose and the polyvinyl alcohol of 50~55mol% of alcoholysis degree
Object, the mass ratio of two components is 1 in the mixture:1.5~2；Second dispersant is the polyvinyl alcohol of 36~40mol% of alcoholysis degree；
Third dispersant is the polyvinyl alcohol of 70~72mol% of alcoholysis degree；
Preferably, water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersion
The mass ratio of agent is 60~70：2~3：1~2：100：2~3：1~2：2~3：2~3；
Preferably, the hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1~0.2, and content is 8~10%, and methyl substitution is
1~2, content is 20~25%；
Preferably, the coupling agent is silane resin acceptor kh-550；
Preferably, the crosslinking agent is polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene
Mixture, three's mass ratio are 1:1~2:3~4；
Preferably, the initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3~4：
1；
Preferably, step（4）In, premix condition is 150~180 DEG C；
Preferably, step（4）In, it is cooled to 40~50 DEG C and is re-fed into extruder progress extrusion molding；
A kind of high temperature resistant Corvic, is obtained by above-mentioned preparation method；
The beneficial effects of the invention are as follows：
1, Corvic is obtained by the reaction by polymerizable raw material of vinyl chloride monomer in the present invention, sequentially adds the first dispersion step by step
Agent, the second dispersant and third dispersant obtain the strand of different length to carry out polymerisation step by step, and strand is promoted to twine
Around making it have heat-resisting quantity；Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium heat is mixed, squeezes out, and further increases the high temperature resistance of product；
2, the first dispersant is the mixture of the polyvinyl alcohol of hydroxypropyl methyl cellulose and 50~55mol% of alcoholysis degree, second point
Powder is the polyvinyl alcohol of 36~40mol% of alcoholysis degree, and third dispersant is the polyvinyl alcohol of 70~72mol% of alcoholysis degree, gained
Corvic has porosity appropriate so that product has excellent high temperature resistance；
3, vinyl chloride monomer conversion ratio reaches 85%, terminates polymerisation, avoids forming concrete dynamic modulus in strand winding process,
And then influence the heat-resisting quantity of Corvic.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments；Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses；
Embodiment 1
A kind of preparation method of high temperature resistant Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 60 DEG C；
（3）Third dispersant is added when reaching 20% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1:0.2:0.1:0.05:0.05 is added the mixed machine of heat, is premixed, is dried under the conditions of 150 DEG C, is then fed into
Extruder for shaping obtains a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 50mol%,
The mass ratio of two components is 1 in the mixture:1.5；Second dispersant is the polyvinyl alcohol of alcoholysis degree 36mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 70mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 60：2：1：100：2：1：2：2；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1, content 8%, methyl substitution 1, content 20%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1:1:3；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3：1；
Step（4）In, premix condition is 150 DEG C；
Step（4）In, it is cooled to 40 DEG C and is re-fed into extruder progress extrusion molding；
A kind of high temperature resistant Corvic, is obtained by above-mentioned preparation method；
Embodiment 2
A kind of preparation method of high temperature resistant Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 70 DEG C；
（3）Third dispersant is added when reaching 30% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1: 0.3: 0.2: 0.06:0.06 is added the mixed machine of heat, is premixed, is dried under the conditions of 180 DEG C, then
It is sent into extruder for shaping, obtains a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 55mol%,
The mass ratio of two components is 1 in the mixture: 2；Second dispersant is the polyvinyl alcohol of alcoholysis degree 40mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 72mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 70： 3： 2：100： 3： 2： 3： 3；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.2, content 10%, methyl substitution 2, content 25%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1: 2: 4；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 4：1；
Step（4）In, premix condition is 180 DEG C；
Step（4）In, it is cooled to 50 DEG C and is re-fed into extruder progress extrusion molding；
A kind of high temperature resistant Corvic, is obtained by above-mentioned preparation method；
Embodiment 3
A kind of preparation method of high temperature resistant Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 60 DEG C；
（3）Third dispersant is added when reaching 30% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1:0.2: 0.2:0.05:0.06 is added the mixed machine of heat, is premixed, is dried under the conditions of 150 DEG C, then sent
Enter extruder for shaping, obtains a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 55mol%,
The mass ratio of two components is 1 in the mixture:1.5；Second dispersant is the polyvinyl alcohol of alcoholysis degree 40mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 70mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 70：2： 2：100：2： 2：2： 3；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1, content 10%, methyl substitution 1, content 25%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1:1: 4；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3：1；
Step（4）In, premix condition is 180 DEG C；
Step（4）In, it is cooled to 40 DEG C and is re-fed into extruder progress extrusion molding；
A kind of high temperature resistant Corvic, is obtained by above-mentioned preparation method；
Embodiment 4
A kind of preparation method of high temperature resistant Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 70 DEG C；
（3）Third dispersant is added when reaching 20% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1: 0.3:0.1: 0.06:0.05 is added the mixed machine of heat, is premixed, is dried under the conditions of 180 DEG C, then sent
Enter extruder for shaping, obtains a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 50mol%,
The mass ratio of two components is 1 in the mixture: 2；Second dispersant is the polyvinyl alcohol of alcoholysis degree 36mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 72mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 60： 3：1：100： 3：1： 3：2；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.2, content 8%, methyl substitution 2, content 20%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1: 2:3；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 4：1；
Step（4）In, premix condition is 150 DEG C；
Step（4）In, it is cooled to 50 DEG C and is re-fed into extruder progress extrusion molding；
A kind of high temperature resistant Corvic, is obtained by above-mentioned preparation method；
Embodiment 5
A kind of preparation method of high temperature resistant Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 65 DEG C；
（3）Third dispersant is added when reaching 25% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1:0.25:0.15:0.05:0.06 is added the mixed machine of heat, is premixed, is dried under the conditions of 160 DEG C, then
It is sent into extruder for shaping, obtains a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 52mol%,
The mass ratio of two components is 1 in the mixture:1.7；Second dispersant is the polyvinyl alcohol of alcoholysis degree 38mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 71mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 65：2.5：1.5：100：2.5：1.5：2.5：2.5；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1, content 9%, methyl substitution 1, content 22%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1:1.5:3.5；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3.5：1；
Step（4）In, premix condition is 165 DEG C；
Step（4）In, it is cooled to 45 DEG C and is re-fed into extruder progress extrusion molding；
A kind of high temperature resistant Corvic, is obtained by above-mentioned preparation method；
Comparative example 1
A kind of preparation method of Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, initiator is added, polymerisation is carried out under the conditions of being heated to 65 DEG C；
（3）Third dispersant is added when reaching 25% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1:0.25:0.15:0.05:0.06 is added the mixed machine of heat, is premixed, is dried under the conditions of 160 DEG C, then
It is sent into extruder for shaping, obtains a kind of Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 52mol%,
The mass ratio of two components is 1 in the mixture:1.7；Third dispersant is the polyvinyl alcohol of alcoholysis degree 71mol%；
Water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, initiator, third dispersant mass ratio be 65：2.5：
1.5：100：2.5：2.5：2.5；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1, content 9%, methyl substitution 1, content 22%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1:1.5:3.5；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3.5：1；
Step（4）In, premix condition is 165 DEG C；
Step（4）In, it is cooled to 45 DEG C and is re-fed into extruder progress extrusion molding；
A kind of Corvic is obtained by above-mentioned preparation method；
Comparative example 2
A kind of preparation method of Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 65 DEG C；
（3）Third dispersant is added when reaching 25% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic is with chlorinated paraffin, silica aerogel powder, calcium stearate with quality
Than 1:0.25:0.15:0.05 is added the mixed machine of heat, is premixed, is dried under the conditions of 160 DEG C, is then fed into extruder and be extruded into
Type obtains a kind of Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 52mol%,
The mass ratio of two components is 1 in the mixture:1.7；Second dispersant is the polyvinyl alcohol of alcoholysis degree 38mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 71mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 65：2.5：1.5：100：2.5：1.5：2.5：2.5；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1, content 9%, methyl substitution 1, content 22%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1:1.5:3.5；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3.5：1；
Step（4）In, premix condition is 165 DEG C；
Step（4）In, it is cooled to 45 DEG C and is re-fed into extruder progress extrusion molding；
A kind of Corvic is obtained by above-mentioned preparation method；
Comparative example 3
A kind of preparation method of Corvic, including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 65 DEG C；
（3）Third dispersant is added when reaching 25% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, and it is anti-to terminate polymerization
It answers, recycles unreacted monomer, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic is with silica aerogel powder, calcium stearate, ricinoleic acid calcium with matter
Measure ratio 1: 0.15:0.05:0.06 is added the mixed machine of heat, is premixed, is dried under the conditions of 160 DEG C, is then fed into extruder and squeeze
Go out molding, obtains a kind of Corvic；
Wherein, first dispersant is the mixture of hydroxypropyl methyl cellulose and the polyvinyl alcohol of alcoholysis degree 52mol%,
The mass ratio of two components is 1 in the mixture:1.7；Second dispersant is the polyvinyl alcohol of alcoholysis degree 38mol%；Third dispersant
For the polyvinyl alcohol of alcoholysis degree 71mol%；
The quality of water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking agent, the second dispersant, initiator, third dispersant
Than being 65：2.5：1.5：100：2.5：1.5：2.5：2.5；
The hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1, content 9%, methyl substitution 1, content 22%；
Coupling agent is silane resin acceptor kh-550；
Crosslinking agent is the mixture of polyethyleneglycol diacrylate, ethylene glycol dimethacrylate and divinylbenzene, three
Mass ratio is 1:1.5:3.5；
Initiator is the mixture of isopropyl benzene hydroperoxide and benzoyl peroxide, and three's mass ratio is 3.5：1；
Step（4）In, premix condition is 165 DEG C；
Step（4）In, it is cooled to 45 DEG C and is re-fed into extruder progress extrusion molding；
A kind of Corvic is obtained by above-mentioned preparation method；
Test example
The Corvic of Examples 1 to 5 and comparative example 1~3 is tested for the property, the results are shown in Table 1；
1. the performance test results of table
As shown in Table 1, the polyvinyl chloride of Examples 1 to 5 has excellent high temperature resistance, tensile strength also preferable；Comparative example 1
The second dispersant is not added, comparative example 2 omits ricinoleic acid calcium, and comparative example 3 omits chlorinated paraffin, and high temperature resistance obviously becomes
Difference, tensile strength are also obviously deteriorated；
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and do not carrying on the back
In the case of spirit or essential attributes from the present invention, the present invention can be realized in other specific forms；Therefore, no matter from which
From the point of view of a bit, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is wanted by appended right
Ask rather than above description limit, it is intended that by all changes that come within the meaning and range of equivalency of the claims
It is included within the present invention；
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiment of understanding.
Claims (9)
1. a kind of preparation method of high temperature resistant Corvic, which is characterized in that including step：
（1）Water, the first dispersant are added in polymeric kettle, vinyl chloride monomer is added after extracting vacuum, is uniformly mixed；
（2）Coupling agent, crosslinking agent, the second dispersant, initiator is added, polymerisation is carried out under the conditions of being heated to 60~70 DEG C；
（3）Third dispersant is added when reaching 20~30% in vinyl chloride monomer conversion ratio, and the reaction was continued to conversion ratio 85%, terminates poly-
Reaction is closed, unreacted monomer is recycled, the centrifugation of gained slurries is dried to obtain Corvic；
（4）By step（3）Gained Corvic and chlorinated paraffin, silica aerogel powder, calcium stearate, castor oil
Sour calcium is with mass ratio 1:0.2~0.3:0.1~0.2:0.05~0.06:0.05~0.06 is added the mixed machine of heat, at 150~180 DEG C
Under the conditions of premixed, dried, be then fed into extruder for shaping, obtain a kind of high temperature resistant Corvic；
Wherein, first dispersant is the mixing of hydroxypropyl methyl cellulose and the polyvinyl alcohol of 50~55mol% of alcoholysis degree
Object, the mass ratio of two components is 1 in the mixture:1.5~2；Second dispersant is the polyvinyl alcohol of 36~40mol% of alcoholysis degree；
Third dispersant is the polyvinyl alcohol of 70~72mol% of alcoholysis degree.
2. preparation method according to claim 1, which is characterized in that water, the first dispersant, coupling agent, vinyl chloride monomer, crosslinking
Agent, the second dispersant, initiator, third dispersant mass ratio be 60~70：2~3：1~2：100：2~3：1~2：2~3：
2~3.
3. preparation method according to claim 1, which is characterized in that the hydroxypropyl degree of substitution of hydroxypropyl methyl cellulose is 0.1
~0.2, content is about 8~10%, and methyl substitution is 1~2, and content is 20~25%.
4. preparation method according to claim 1, which is characterized in that the coupling agent is silane resin acceptor kh-550.
5. preparation method according to claim 1, which is characterized in that the crosslinking agent is polyethyleneglycol diacrylate, second two
The mixture of alcohol dimethylacrylate and divinylbenzene, three's mass ratio are 1:1~2:3~4.
6. preparation method according to claim 1, which is characterized in that the initiator is isopropyl benzene hydroperoxide and benzoyl peroxide
The mixture of formyl, three's mass ratio are about 3~4：1.
7. preparation method according to claim 1, which is characterized in that step（4）In, premix condition is 150~180 DEG C.
8. preparation method according to claim 1, which is characterized in that step（4）In, it is cooled to 40~50 DEG C and is re-fed into extruder
Carry out extrusion molding.
9. a kind of high temperature resistant Corvic, is obtained by preparation method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643677.5A CN108659409B (en) | 2018-06-21 | 2018-06-21 | High-temperature-resistant polyvinyl chloride resin and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810643677.5A CN108659409B (en) | 2018-06-21 | 2018-06-21 | High-temperature-resistant polyvinyl chloride resin and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108659409A true CN108659409A (en) | 2018-10-16 |
| CN108659409B CN108659409B (en) | 2020-12-15 |
Family
ID=63772892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810643677.5A Active CN108659409B (en) | 2018-06-21 | 2018-06-21 | High-temperature-resistant polyvinyl chloride resin and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108659409B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401459A (en) * | 2018-11-03 | 2019-03-01 | 浙江添越新材料有限公司 | A kind of high temperature scratch resistance non-sticking lining of carbon fiber modifying and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432732A (en) * | 2011-03-14 | 2012-05-02 | 新疆石河子中发化工有限责任公司 | Preparation method for polyvinyl chloride resin used for flame-retardant cable |
| CN106749793A (en) * | 2016-04-23 | 2017-05-31 | 佛山瑞箭体育器材有限公司 | A kind of preparation method of Corvic |
| CN106893011A (en) * | 2017-03-20 | 2017-06-27 | 青海盐湖工业股份有限公司 | A kind of whiteness Corvic high and preparation method thereof |
| CN107189018A (en) * | 2017-06-16 | 2017-09-22 | 杭州电化集团有限公司 | A kind of preparation method of high polymerization degree Delustering Polychloroethylene |
| CN108034015A (en) * | 2017-12-27 | 2018-05-15 | 山西阿科达化工科技有限公司 | A kind of preparation method of polyvinyl chloride |
-
2018
- 2018-06-21 CN CN201810643677.5A patent/CN108659409B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102432732A (en) * | 2011-03-14 | 2012-05-02 | 新疆石河子中发化工有限责任公司 | Preparation method for polyvinyl chloride resin used for flame-retardant cable |
| CN106749793A (en) * | 2016-04-23 | 2017-05-31 | 佛山瑞箭体育器材有限公司 | A kind of preparation method of Corvic |
| CN106893011A (en) * | 2017-03-20 | 2017-06-27 | 青海盐湖工业股份有限公司 | A kind of whiteness Corvic high and preparation method thereof |
| CN107189018A (en) * | 2017-06-16 | 2017-09-22 | 杭州电化集团有限公司 | A kind of preparation method of high polymerization degree Delustering Polychloroethylene |
| CN108034015A (en) * | 2017-12-27 | 2018-05-15 | 山西阿科达化工科技有限公司 | A kind of preparation method of polyvinyl chloride |
Non-Patent Citations (2)
| Title |
|---|
| 俞志明: "《中国化工商品大全 1995年版 第3卷》", 31 January 1996, 中国物资出版社 * |
| 巫静安: "《橡胶塑料加工成型与制品应用工程手册 压延成型与制品应用》", 31 July 2001, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109401459A (en) * | 2018-11-03 | 2019-03-01 | 浙江添越新材料有限公司 | A kind of high temperature scratch resistance non-sticking lining of carbon fiber modifying and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108659409B (en) | 2020-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104945817B (en) | A kind of itaconate/butadiene copolymer type biological engineering rubber and preparation method thereof | |
| CN105254817B (en) | The preparation method of nucleocapsid esters of acrylic acid foaming control agent | |
| CN103937177A (en) | Highly heat-conducting modified plastic and preparation method thereof | |
| CN110746544B (en) | High-gloss high-impact polystyrene material and preparation method thereof | |
| KR102426402B1 (en) | Method for preparing large particle sized rubber latex, and method for preparing abs graft copolymer | |
| KR101566073B1 (en) | Impact reinforce agent for PVC, a method for preparing the same, and a resin composition containing the same | |
| CN106317336A (en) | Carboxyl butyronitrile latex for oil resistant gloves and preparation method of carboxyl butyronitrile latex | |
| CN108659409A (en) | A kind of high temperature resistant Corvic and preparation method thereof | |
| JP6348615B2 (en) | Acrylic processing aid and vinyl chloride resin composition containing the same | |
| CN102633950B (en) | Synthetic method of ABS graft copolymer with multimodal distribution | |
| KR20140038065A (en) | Acrylic copolymer latex, and method for preparing thereof | |
| CN104356614A (en) | Preparation method of PET polyester based on emulsion polymerization process | |
| CN108276624A (en) | A kind of preparation that graphene adulterates anti-impact modifier and the application in PVC matrix | |
| CN108329646A (en) | A kind of highly resistance is leapt high flowing ABS resin and preparation method thereof | |
| CN107418238A (en) | A kind of printing consumptive material of graphene-containing and preparation method thereof | |
| CN105273119B (en) | A kind of preparation method of high degree of polymerization of polyvinyl chloride resin | |
| KR102543169B1 (en) | Method for preparing diene based graft copolymer | |
| KR102639916B1 (en) | Copolymer composition, method for preparing the same, and polycarbonate based resin composition comprising the same | |
| CN108504044A (en) | A kind of floor heat resistant and wear resistant composite material and preparation method | |
| CN102964507B (en) | Nano ceria impact resistant modified acrylate polymer and preparation method thereof | |
| CN103012659B (en) | Nano-calcium-carbonate modified impact-resisting acrylate high-molecular polymer and method for preparing same | |
| TW201504310A (en) | Vinyl chloride-containing copolymer, vinyl chloride-containing resin composition, and molded article | |
| CN107603120A (en) | A kind of preparation method of mica condenser casing plastic | |
| CN104387801A (en) | Modified calcium carbonate with enhanced anti-aging effect and preparation method thereof | |
| CN107936523A (en) | A kind of chlorinated polyether heat resist modification material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |