CN106674799A - Polyvinyl chloride mixture, polyvinyl chloride film and preparation methods of polyvinyl chloride mixture and polyvinyl chloride film - Google Patents
Polyvinyl chloride mixture, polyvinyl chloride film and preparation methods of polyvinyl chloride mixture and polyvinyl chloride film Download PDFInfo
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- CN106674799A CN106674799A CN201611067002.8A CN201611067002A CN106674799A CN 106674799 A CN106674799 A CN 106674799A CN 201611067002 A CN201611067002 A CN 201611067002A CN 106674799 A CN106674799 A CN 106674799A
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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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0016—Plasticisers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0075—Antistatics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides a polyvinyl chloride mixture and polyvinyl chloride film and preparation methods of the polyvinyl chloride mixture and the polyvinyl chloride film. The preparation method of the polyvinyl chloride mixture comprises the following steps: S1, carrying out primary stirring on a mixture of polyvinyl chloride resin and an antistatic agent to form a first mixed preparation material; S2, mixing a plasticizer with the first mixed preparation material and then carrying out secondary stirring to form the polyvinyl chloride mixture. According to the preparation method disclosed by the invention, firstly, the primary stirring is carried out on the polyvinyl chloride resin and the antistatic agent, then secondary stirring is carried out after the plasticizer is added, so that the adding sequence of various components is adjusted to effectively avoid precipitation of the antistatic agent in the polyvinyl chloride film after the polyvinyl chloride film is prepared by using the polyvinyl chloride mixture so as to improve the hand feeling and transparency of the polyvinyl chloride film and avoid effects on a thickness printing process.
Description
Technical field
The present invention relates to field of material technology, in particular to a kind of polrvinyl chloride compound, polyvinyl chloride film and
The preparation method of the two.
Background technology
Pvc material due to excellent mechanical performance, pliability and chemical reagent resistance and cheap, from
And be widely used in various fields.Different additives can be added in pvc material according to different purposes,
So that the polrvinyl chloride product for preparing is presented different physical properties and mechanical property, add such as in polrvinyl chloride appropriate
Plasticizer, make various thin film such as semi-rigid, soft and transparent, can also be by further adding antistatic additive, to prepare
Go out antistatic film.
However, the polrvinyl chloride of the antistatic being prepared from using the preparation technology of polyvinyl chloride film in prior art is thin
Film, the problem for antistatic additive precipitation easily occur, so as to the feel for causing polyvinyl chloride film changes, and under transparency
Drop, so as to not reach the requirement of client.
The content of the invention
Present invention is primarily targeted at providing a kind of polrvinyl chloride compound, polyvinyl chloride film and the preparation side of the two
Method, to solve the problems, such as prior art in due to antistatic additive separate out and cause the feel of polyvinyl chloride film to reduce.
To achieve these goals, according to an aspect of the invention, there is provided a kind of preparation of polrvinyl chloride compound
Method, comprises the following steps：S1, will carry out the first stir process including the raw material of Corvic and antistatic additive, be formed
First mixing pre-feed；S2, mixes plasticizer pre-feed with first and mixes and carry out the second stir process, forms polrvinyl chloride
Compound.
Further, in the step of the first stir process, will throw including the raw material of Corvic and antistatic additive
To enter carried out in mixer first time stirring at low speed process, the stir speed (S.S.) that preferred first time stirring at low speed is processed be 280-520 turn/
Min, the mixing time of first time stirring at low speed process is 15-50s.
Further, the stir speed (S.S.) that first time stirring at low speed is processed is that 350-450 turns/min, at first time stirring at low speed
The mixing time of reason is 25-38s.
Further, the second stir process includes procedure below：S21, pre-feed is mixed with first in mixing by plasticizer
Second stirring at low speed process is carried out in machine, second is formed and is mixed pre-feed, the stir speed (S.S.) of second stirring at low speed process is
300-480 turns/min, and the mixing time of second stirring at low speed process is 50-200s；S22, is carried out to the second mixing pre-feed
High-speed stirred process, obtains polrvinyl chloride compound, and the stir speed (S.S.) of high-speed stirred process is that 600-900 turns/min.
Further, the mixing time that high-speed stirred is processed is 5-10min.
Further, the stir speed (S.S.) of second stirring at low speed process is that 400-480 turns/min, at second stirring at low speed
The mixing time of reason is 100-180s.
Further, the stir speed (S.S.) that high-speed stirred is processed is that 760-860 turns/min, the mixing time of high-speed stirred process
For 7-9min.
According to a further aspect in the invention, there is provided a kind of polrvinyl chloride compound, mixed using above-mentioned polrvinyl chloride
The preparation method of material is prepared from.
According to a further aspect in the invention, a kind of preparation method of polyvinyl chloride film is additionally provided, is comprised the following steps：
By above-mentioned polrvinyl chloride compound fusion plastification, molten state compound is obtained；By molten state compound calendering formation, gathered
Vinyl chloride film.
In accordance with a further aspect of the present invention, there is provided a kind of polyvinyl chloride film, polyvinyl chloride film is by above-mentioned polychlorostyrene
The preparation method of vinyl film is prepared from.
Using technical scheme, there is provided a kind of preparation method of polrvinyl chloride compound, due to the preparation side
Corvic and antistatic additive are carried out the first stir process by method first, second is carried out after then plasticizer is added again and is stirred
Process is mixed, so as to pass through to adjust the order of addition of each composition, using above-mentioned polrvinyl chloride compound polrvinyl chloride is being prepared
After thin film, the precipitation of antistatic additive in polyvinyl chloride film is efficiently avoid, and then improve the feel of polyvinyl chloride film
And transparency, it is to avoid impact to thickness typography.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Description of the drawings
The Figure of description for constituting the part of the present invention is used for providing a further understanding of the present invention, and the present invention's shows
Meaning property embodiment and its illustrated for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the schematic flow sheet of the preparation method of the polrvinyl chloride compound that embodiment of the present invention is provided.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment and the feature in embodiment in the present invention can phase
Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, "
Two " it is etc. the object for distinguishing similar, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein.Additionally, term " including " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive includes, for example, contain series of steps or unit
Process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but may include without clear
Other steps list to Chu or intrinsic for these processes, method, product or equipment or unit.
As described in background technology, in prior art the preparation technology of polyvinyl chloride film be prepared from it is anti-quiet
The polyvinyl chloride film of electricity, the problem for antistatic additive precipitation easily occur, so as to the feel for causing polyvinyl chloride film is reduced, reaches
Less than the requirement of client.Present inventor is studied for the problems referred to above, it is proposed that a kind of polrvinyl chloride compound
Preparation method, as shown in figure 1, comprising the following steps：S1, will carry out first including the raw material of Corvic and antistatic additive
Stir process, forms first and mixes pre-feed；S2, mixes plasticizer pre-feed with first and mixes and carry out at the second stirring
Reason, forms second and mixes pre-feed.
Due to first by Corvic and antistatic in the preparation method of the above-mentioned polrvinyl chloride compound of the present invention
Agent carries out the first stir process, and the second stir process is carried out after then plasticizer is added again, so as to pass through to adjust each composition
Order of addition, after polyvinyl chloride film is prepared using above-mentioned polrvinyl chloride compound, efficiently avoid polrvinyl chloride
The precipitation of antistatic additive in thin film, and then improve the feel and transparency of polyvinyl chloride film, it is to avoid to thickness printer
The impact of skill.
The exemplary reality of the preparation method of the polrvinyl chloride compound provided according to the present invention is provided
Apply mode.However, these illustrative embodiments can be implemented by many different forms, and it is not construed as only
It is limited to embodiments set forth herein.It should be appreciated that thesing embodiments are provided so that disclosure herein
It is thoroughly and complete, and the design of these illustrative embodiments is fully conveyed to into those of ordinary skill in the art.
First, execution step S1：The first stir process, shape will be carried out including the raw material of Corvic and antistatic additive
Into the first mixing pre-feed.Those skilled in the art can according to the actual requirements to Corvic in mixture and antistatic
The ratio of agent is set；Also, those skilled in the art can also enter according to prior art to the species of above-mentioned antistatic additive
Row is chosen, it is preferable that above-mentioned antistatic additive is selected from antistatic additive LS, antistatic additive SN, antistatic additive SP, and antistatic additive 609 resists
Electrostatic agent 156, antistatic additive 150, any one or more in ECH type antistatic additive.
In the step of above-mentioned first stir process, can be by including the raw material of Corvic and antistatic additive input
First time stirring at low speed process is carried out in mixer.Preferably, the stir speed (S.S.) that first time stirring at low speed is processed is 280-520
Turn/min, the mixing time of first time stirring at low speed process is 15-50s.By the stirring speed for processing first time stirring at low speed
Rate and mixing time are set in above-mentioned preferred parameter area, by increasing capacitance it is possible to increase Corvic connects with the relative of antistatic additive
The tactile time, so that the mixing that Corvic and antistatic additive are more uniformly distributed.It is further preferable that the first time low speed is stirred
The stir speed (S.S.) for mixing process is that 350-450 turns/min, and the mixing time that the first time stirring at low speed is processed is 25-38s.
After execution of step S1, plasticizer is mixed pre-feed with first and mixes and carry out second by execution step S2 to be stirred
Process is mixed, polrvinyl chloride compound is formed.Those skilled in the art can be pre- to plasticizer and the first mixing according to the actual requirements
The ratio got the raw materials ready is chosen；Also, those skilled in the art can be carried out according to prior art to the species of above-mentioned plasticizer
Rational choice, it is preferable that above-mentioned plasticizer includes dioctyl phthalate, soybean oil, the just own ester of phthalic acid two, adjacent benzene
In the cyclohexyl ester of dioctyl phthalate two, dibutyl phthalate (DHP), phthalic acid two (2- ethyl hexyls) ester, DOTP
Any one or more.
In a preferred embodiment, above-mentioned second stir process includes procedure below：S21, by plasticizer and
One mixing pre-feed carries out second stirring at low speed process in mixer, forms second and mixes pre-feed, and second low speed is stirred
The stir speed (S.S.) for mixing process is that 300-480 turns/min, and the mixing time of second stirring at low speed process is 50-200s；S22 is right
Second mixing pre-feed carries out high-speed stirred process, obtains polrvinyl chloride compound, and the stir speed (S.S.) of high-speed stirred process is
600-900 turns/min.
It is above-mentioned preferred embodiment in, by by the second stir process be divided into stirring at low speed process and high-speed stirred at
Reason two steps, and respectively by stirring at low speed process and high-speed stirred process process conditions be limited to above-mentioned preferred parameter model
In enclosing, the relative time of contact between Corvic and antistatic additive and plasticizer can not only be increased, so that polychlorostyrene
Vinyl, antistatic additive and plasticizer mix evenly, are more beneficial for playing the plasticization effect of plasticizer, additionally it is possible to more
It is effectively prevented from the precipitation of antistatic additive in the polyvinyl chloride film prepared using above-mentioned polrvinyl chloride compound.Also, it is
The polrvinyl chloride compound that is uniformly mixed, it is further preferable that the mixing time that high-speed stirred is processed is 5-10min.
In the step of the second stir process, in order to further improve including Corvic, antistatic additive and plasticising
The uniformity of the second mixing pre-feed of agent, it is preferable that the stir speed (S.S.) that second stirring at low speed is processed is 400-480
Turn/min, the mixing time that second stirring at low speed is processed is 100-180s；And, it is preferable that at the high-speed stirred
The stir speed (S.S.) of reason is that 760-860 turns/min, and the mixing time that the high-speed stirred is processed is 7-9min.
According to further aspect of the application, there is provided prepared by a kind of preparation method using above-mentioned polrvinyl chloride compound
Polrvinyl chloride compound.Due to first by Corvic and antistatic in the preparation method of the polrvinyl chloride compound
Agent carries out the first stir process, and the second stir process is carried out after then plasticizer is added again, so as to pass through to adjust each composition
Order of addition has obtained polrvinyl chloride compound, and then be prepared from poly- is efficiently avoid using the polrvinyl chloride compound
The precipitation of antistatic additive in vinyl chloride film, and then improve the feel and transparency of polyvinyl chloride film, it is to avoid to thickness
The impact of typography.
According to further aspect of the application, a kind of preparation method of polyvinyl chloride film, including following step are additionally provided
Suddenly：By above-mentioned polrvinyl chloride compound fusion plastification, molten state compound is obtained；By molten state compound calendering formation, obtain
To polyvinyl chloride film.By above-mentioned steps polrvinyl chloride compound can be made to melt and plastify, and then again by above-mentioned calendering
The step of molding, forms polyvinyl chloride film.
In the preparation method of the above-mentioned polyvinyl chloride film of the present invention, because the polrvinyl chloride compound for adopting is to pass through
Corvic and antistatic additive are carried out into the first stir process, is carried out at the second stirring after then plasticizer is added again
Reason, so as to pass through to adjust the order of addition of each composition, efficiently avoid antistatic additive in the polyvinyl chloride film for preparing
Precipitation, and then improve the feel and transparency of polyvinyl chloride film, it is to avoid the impact to thickness typography.
In the preparation method of the above-mentioned polyvinyl chloride film of the present invention, those skilled in the art can be according to prior art
The equipment and process conditions of extrusion molding are set.Preferably, polrvinyl chloride compound is melted using planetary extruder
Plasticizing, it is further preferable that planetary extruder is divided into three heating intervals, temperature of three heating intervals along the flow direction of material
Degree；Also, those skilled in the art can set according to prior art to the equipment and process conditions of calendering formation.It is preferred that
Ground, using five roll calendars by molten state compound calendering formation.
In a preferred embodiment, it is above-mentioned after the step of by above-mentioned polrvinyl chloride compound fusion plastification
The step of preparation method of polyvinyl chloride film is also included molten state polrvinyl chloride filtration treatment.In order to improve what is prepared
The performance of polyvinyl chloride film, it is further preferable that filtration treatment, and filter are carried out to molten state polrvinyl chloride using filter
The mesh number of middle filter screen is 200 mesh.
After the step of by polyvinyl chloride colloidal particle calendering formation, due to the polyvinyl chloride film temperature for obtaining it is very high, on
Stating the preparation method of polyvinyl chloride film can also include the step of cooling down to the polyvinyl chloride film of high temperature, it is preferable that
Above-mentioned polyvinyl chloride film is cooled down using 10~50 DEG C of cooling waters.After to the cooling of above-mentioned polyvinyl chloride film,
Polyvinyl chloride film is wound and packed.
According to another aspect of the application, additionally provide a kind of preparation method by above-mentioned polyvinyl chloride film and prepare
Polyvinyl chloride film.Due to the polrvinyl chloride compound adopted in the preparation method be by by Corvic and
Antistatic additive carries out the first stir process, and the second stir process is carried out after then plasticizer is added again, each so as to pass through adjustment
The order of addition of composition, efficiently avoid the precipitation of antistatic additive in the polyvinyl chloride film for preparing, and then improve
The feel and transparency of polyvinyl chloride film, it is to avoid impact to thickness typography.
Polrvinyl chloride compound, the polrvinyl chloride of present invention offer are further illustrated below in conjunction with embodiment and comparative example
Thin film and the preparation method of the two.
Embodiment 1
The preparation method of the polrvinyl chloride compound that the present embodiment is provided is comprised the following steps：
First time stirring at low speed process is carried out by putting in mixer including the raw material of Corvic and antistatic additive,
The stir speed (S.S.) of first time stirring at low speed process is 270 turns/min, and the mixing time of first time stirring at low speed process is 12s；
Plasticizer is mixed into pre-feed with first carries out second stirring at low speed process in mixer, forms second and mixes
Pre-feed, the stir speed (S.S.) of second stirring at low speed process is 280 turns/min, and the mixing time of second stirring at low speed process is
45s；
High-speed stirred process is carried out to the second mixing pre-feed, polrvinyl chloride compound is obtained, what high-speed stirred was processed stirs
It is 580 turns/min to mix speed, and the mixing time of high-speed stirred process is 5min.
Embodiment 2
The preparation method of the polrvinyl chloride compound that the present embodiment is provided is comprised the following steps：
First time stirring at low speed process is carried out by putting in mixer including the raw material of Corvic and antistatic additive,
The stir speed (S.S.) of first time stirring at low speed process is 280 turns/min, and the mixing time of first time stirring at low speed process is 50s；
Plasticizer is mixed into pre-feed with first carries out second stirring at low speed process in mixer, forms second and mixes
Pre-feed, the stir speed (S.S.) of second stirring at low speed process is 300 turns/min, and the mixing time of second stirring at low speed process is
200s；
High-speed stirred process is carried out to the second mixing pre-feed, polrvinyl chloride compound is obtained, what high-speed stirred was processed stirs
It is 600 turns/min to mix speed, and the mixing time of high-speed stirred process is 10min.
Embodiment 3
The preparation method of the polrvinyl chloride compound that the present embodiment is provided is comprised the following steps：
First time stirring at low speed process is carried out by putting in mixer including the raw material of Corvic and antistatic additive,
The stir speed (S.S.) of first time stirring at low speed process is 520 turns/min, and the mixing time of first time stirring at low speed process is 15s；
Plasticizer is mixed into pre-feed with first carries out second stirring at low speed process in mixer, forms second and mixes
Pre-feed, the stir speed (S.S.) of second stirring at low speed process is 480 turns/min, and the mixing time of second stirring at low speed process is
50s；
High-speed stirred process is carried out to the second mixing pre-feed, polrvinyl chloride compound is obtained, what high-speed stirred was processed stirs
It is 900 turns/min to mix speed, and the mixing time of high-speed stirred process is 6min.
Embodiment 4
The preparation method of the polrvinyl chloride compound that the present embodiment is provided is comprised the following steps：
First time stirring at low speed process is carried out by putting in mixer including the raw material of Corvic and antistatic additive,
The stir speed (S.S.) of first time stirring at low speed process is 350 turns/min, and the mixing time of first time stirring at low speed process is 38s；
Plasticizer is mixed into pre-feed with first carries out second stirring at low speed process in mixer, forms second and mixes
Pre-feed, the stir speed (S.S.) of second stirring at low speed process is 400 turns/min, and the mixing time of second stirring at low speed process is
180s；
High-speed stirred process is carried out to the second mixing pre-feed, polrvinyl chloride compound is obtained, what high-speed stirred was processed stirs
It is 760 turns/min to mix speed, and the mixing time of high-speed stirred process is 9min.
Embodiment 5
The preparation method of the polrvinyl chloride compound that the present embodiment is provided is comprised the following steps：
First time stirring at low speed process is carried out by putting in mixer including the raw material of Corvic and antistatic additive,
The stir speed (S.S.) of first time stirring at low speed process is 450 turns/min, and the mixing time of first time stirring at low speed process is 25s；
Plasticizer is mixed into pre-feed with first carries out second stirring at low speed process in mixer, forms second and mixes
Pre-feed, the stir speed (S.S.) of second stirring at low speed process is 450 turns/min, and the mixing time of second stirring at low speed process is
100s；
High-speed stirred process is carried out to the second mixing pre-feed, polrvinyl chloride compound is obtained, what high-speed stirred was processed stirs
It is 860 turns/min to mix speed, and the mixing time of high-speed stirred process is 7min.
Comparative example 1
The preparation method of the polrvinyl chloride compound that this comparative example is provided is comprised the following steps：
By including being stirred in the raw material of Corvic, antistatic additive and plasticizer input mixer, stir
It is 730 turns/min to mix speed, and mixing time is 8min.
By the polrvinyl chloride compound fusion plastification in above-described embodiment 1 to 5 and comparative example 1, molten state compound is obtained,
And by molten state compound calendering formation, obtain polyvinyl chloride film.The feel of above-mentioned polyvinyl chloride film is tested, can
To find out, the polyvinyl chloride film being prepared from using polrvinyl chloride compound in comparative example 1, film surface has sticky touching
Sense, causes feel poor, the polyvinyl chloride film being prepared from using polrvinyl chloride compound in embodiment 1 to 5, film surface
Substantially without sticky sense of touch, and the polyvinyl chloride film in embodiment 2 to 5, film surface is completely with sticky sense of touch, feel
Preferably, the polyvinyl chloride film feel and in embodiment 5 is optimal.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
1st, it is thin polrvinyl chloride is prepared using above-mentioned polrvinyl chloride compound by the order of addition of each composition of adjustment
After film, efficiently avoid the precipitation of antistatic additive in polyvinyl chloride film, so as to improve polyvinyl chloride film feel and
Transparency, it is to avoid impact to thickness typography；
2nd, by the mixing time of the different agitation phases of regulation, using above-mentioned polrvinyl chloride compound polychlorostyrene is being prepared
After vinyl film, the precipitation of antistatic additive in polyvinyl chloride film is more effectively avoided, so as to further increase polychlorostyrene
The feel and transparency of vinyl film.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of polrvinyl chloride compound, it is characterised in that comprise the following steps：
S1, will carry out the first stir process including the raw material of Corvic and antistatic additive, forms first and mixes pre-feed；
S2, mixes plasticizer pre-feed with described first and mixes and carry out the second stir process, forms polrvinyl chloride compound.
2. preparation method according to claim 1, it is characterised in that in the step of first stir process, will wrap
First time stirring at low speed process is carried out in the raw material input mixer for including the Corvic and the antistatic additive, preferably
The stir speed (S.S.) that the first time stirring at low speed is processed is that 280-520 turns/min, the stirring that the first time stirring at low speed is processed
Time is 15-50s.
3. preparation method according to claim 2, it is characterised in that the stir speed (S.S.) that the first time stirring at low speed is processed
Turn/min for 350-450, the mixing time that the first time stirring at low speed is processed is 25-38s.
4. preparation method according to claim 2, it is characterised in that second stir process includes procedure below：
S21, plasticizer is mixed into pre-feed with described first carries out in the mixer second stirring at low speed process, is formed
Second mixing pre-feed, the stir speed (S.S.) that second stirring at low speed is processed is that 300-480 turns/min, second low speed
The mixing time of stir process is 50-200s；
S22, to the described second mixing pre-feed high-speed stirred process is carried out, and obtains the polrvinyl chloride compound, the high speed
The stir speed (S.S.) of stir process is that 600-900 turns/min.
5. preparation method according to claim 4, it is characterised in that the mixing time that the high-speed stirred is processed is 5-
10min。
6. preparation method according to claim 4, it is characterised in that the stir speed (S.S.) that second stirring at low speed is processed
Turn/min for 400-480, the mixing time that second stirring at low speed is processed is 100-180s.
7. preparation method according to claim 5, it is characterised in that the stir speed (S.S.) that the high-speed stirred is processed is 760-
860 turns/min, the mixing time that the high-speed stirred is processed is 7-9min.
8. a kind of polrvinyl chloride compound, it is characterised in that mixed using the polrvinyl chloride any one of claim 1 to 7
The preparation method for closing material is prepared from.
9. a kind of preparation method of polyvinyl chloride film, it is characterised in that comprise the following steps：
By the polrvinyl chloride compound fusion plastification described in claim 8, molten state compound is obtained；
By the molten state compound calendering formation, the polyvinyl chloride film is obtained.
10. a kind of polyvinyl chloride film, it is characterised in that the polyvinyl chloride film is by the polrvinyl chloride described in claim 9
The preparation method of thin film is prepared from.
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Cited By (1)
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| CN107501790A (en) * | 2017-08-29 | 2017-12-22 | 广东天安新材料股份有限公司 | Pvc film and preparation method thereof |
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