CN102585458A - Anti-bonding master batch for optical-grade biaxially-oriented PET (polyethylene terephthalate) films/sheets and production process thereof - Google Patents
Anti-bonding master batch for optical-grade biaxially-oriented PET (polyethylene terephthalate) films/sheets and production process thereof Download PDFInfo
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- CN102585458A CN102585458A CN2012100259784A CN201210025978A CN102585458A CN 102585458 A CN102585458 A CN 102585458A CN 2012100259784 A CN2012100259784 A CN 2012100259784A CN 201210025978 A CN201210025978 A CN 201210025978A CN 102585458 A CN102585458 A CN 102585458A
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92914—Degassing unit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides an anti-bonding master batch for optical-grade biaxially-oriented PET (polyethylene terephthalate) films/sheets and a production process thereof. The anti-bonding master batch comprises the following components in parts by weight: 65-99 parts of PET and 1-35 parts of an anti-bonding agent, wherein the anti-bonding agent is composed of inorganic particles which are regular in shape and 0.5-10 mu m in mean particle size, and the melting point of the anti-bonding agent is more than 220 DEG C. The production process is implemented through the following steps of S1, pre-drying; S2, production implemented by using a double-screw extruder, wherein the temperature of each area of the extruder is 250-290 DEG C, the rotating speed of a principal machine is 200-450 r/min, the current is 300-400 A, 1-3 sections carry out vacuum exhaust, and the vacuum degree is minus 0.05mPa to plus 0.1mPa; S3, granulation; and S4, finished product drying. According to the invention, the detects in the prior art are overcome; and through adopting a direct mixing and melting machine-shaping method implemented by using the double-screw extruder, the preparation of the master batch which is simple in process, super-transparent, and excellent in anti-bonding effect is realized.
Description
Technical field
The present invention relates to anti-stick masterbatch and production technique thereof that a kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used.
Background technology
The bi oriented polyethylene terephthalate film is that a kind of performance is than more comprehensive packaging film.Its transparency is good, and is glossy; Have good air-tightness and fragrance protectiveness; Mechanical property is good, and its obdurability is best in all thermoplasticss, and tensile strength and resistance to impact shock are more much higher than general film; And very power is good, and dimensional stabilizing is suitable for secondary processing such as printing, paper bag.The bi oriented polyethylene terephthalate film also has good heat-resisting, winter hardiness and good chemical proofing and oil-proofness.
The bi oriented polyethylene terephthalate film mainly is to be applied to various wrapping material.In addition, also being applied to the functional film coating prod and being with the polyester film is basement membrane, is coated with the novel material that has the coated coating of different chemical character with various, mainly contains heat and shifts functional film coating prods such as charcoal band, multinomial heat conducting film and electrochemical aluminum paint.
Along with developing rapidly of LED flat board, liquid-crystal display, increasing to the demand of optical grade film.Polyethylene terephthalate thin film relies on its excellent performance to be widely used in light diffusion film, the reflective film in the backlight film group in flat board, the liquid-crystal display, the blooming in the touch-screen in protective membrane and the flexible display; The extremely low optical thin film/sheet materials of various requirement mist degree such as the explosion-proof thermal isolation film of glass.
Form the vacuum closed state easily between the closed caudacoria of plastics film, there is a large amount of molecular chains that exposes on its surface behind the film forming simultaneously, in the mutual winding that produces after two film closures between the macromole, thereby causes the adhesion between the film.Therefore, plastics film all need add release agent.The conventional general polyester film uses release agent to be silicon-dioxide; Production technique adopts situ aggregation method mostly; The large granular silicon dioxide powder is dispersed among the EG (terepthaloyl moietie); Through special dispersion technology large granular silicon dioxide is ground, is broken into fine particle, through sedimentation, filtration silicon-dioxide is added chemical reaction kettle with EG again, along with esterification, the polycondensation of EG and PTA; Silicon-dioxide is evenly dispersed in the polyethyleneterephthalate, has accomplished the preparation of film with siliceous PET Resin/Poyester Chips Bottle Grade.This causes thin-film memory at a lot of not onset small-particles, and effective antiseized number of particles reduces, and the grain type is irregular, and size distribution is very wide, has a strong impact on Film Optics performance and anti-adhesion effects.The effective content of the siliceous PET Resin/Poyester Chips Bottle Grade of traditional in addition one's own department or unit method is 3000ppm.The mist degree of too small particle impression film, excessive particle is easy to generate white point in the film printing process.
And to the functional coat base material film, the research of optical grade bi oriented polyethylene terephthalate film anti-stick masterbatch also is to be in blank at home fully.
The bi oriented polyethylene terephthalate film thickness generally is from 3um-300um, and 200um also can be referred to as sheet material with upper film.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; The preparation and the production technique thereof of the anti-stick masterbatch that a kind of optical grade bi oriented polyethylene terephthalate film/sheet material uses are provided; Through the method for the direct mixed melting machine-shaping of twin screw extruder, realize of the preparation of simple, ultra transparent, the splendid polyethylene terephthalate thin film film/sheet material of anti-adhesion effects of a kind of technology with the anti-stick masterbatch.Different to purposes selected different release agents for use, and invention bi oriented polyethylene terephthalate film/sheet material is with serial antiseized masterbatch.
The present invention realizes in the following manner: a kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, is made up of following component and weight part:
Polyethylene terephthalate 65-99;
Release agent 1-35;
Said release agent is a grain type rule, and median size is the inorganic particle of 0.5-10um, fusing point: more than 220 degree.
Preferred said masterbatch also comprises dispersion agent, and said dispersion agent is one or more of chlorinatedpolyethylene wax, OPE, ethylene bis stearamide, polyethylene wax, and the interpolation weight part of said dispersion agent is at 0.001-5.
Preferred said release agent characteristics are: said release agent is that particle diameter single dimensioning, grain type between 0.5-4.0um are the inorganic particle of regular high ball-type rate; Refraction coefficient is 1.45-1.65; 90% size distribution deviation is no more than 1.0um; It is characterized by the close ultra transparent grain of refraction coefficient and polyethylene terephthalate, can be used for being applied to the optical grade polyethylene terephthalate thin film.
The close ultra transparent grain of release agent refraction coefficient and polyethyleneterephthalate, the light percent of pass can be higher, the reflectivity step-down; And select high ball-type rate, particle diameter for use is fixed size particle, also can reduce release agent to the Film Optics Effect on Performance, thereby realizes ultra transparent.
Preferred said release agent is that particle size range is a single dimensioning between the 0.5-3.0um, particle shape type of being spherical granules, and size distribution D90 deviation is no more than 1.0um.Can be used for having heat to shift functional film coating prods such as charcoal band, multinomial heat conducting film and electrochemical aluminum paint.
Further, said release agent is one or several of silicon-dioxide, lime carbonate, ceramic bead, china clay, silicate microballon.
The present invention also provides the production technique of a kind of optical grade bi oriented polyethylene terephthalate film/sheet material with the anti-stick masterbatch, makes according to the following steps:
S1 is predrying;
S2 is by twin screw extruder production, and forcing machine is respectively distinguished temperature 250-290 ℃, engine speed 200r/min-450r/min, electric current 300-400A, the vacuum exhaust of 1-3 section, vacuum tightness-0.05mPa-0.1mPa;
The S3 granulation;
The S4 finished product is dry.
Said material adopts high-accuracy title blanking.Said twin screw extruder screw element adopts the special composition element of high-shear high dispersive.
This technology is to utilize twin screw extruder; Through mixing, fusion, extrude, granulation and process masterbatch; Can not cause many small-particles irregular, small, not onset to exist, thereby realize production efficiently antiseized, ultra transparent masterbatches because of the dispersing technology of traditional situ aggregation method grinding.
The invention has the beneficial effects as follows:
1, splendid optical property.Reduce to minimum to the influence of bi oriented polyethylene terephthalate film/sheet material optical property release agent; Or almost eliminate the influence of release agent to film/sheet material optical property, can be applicable to optical grade bi oriented polyethylene terephthalate film/sheet material or to exigent micron order coated membrane of optical property and print film.
According to optical principle: the refraction coefficient of two media is approaching more, and the light percent of pass is high more, and reflectivity is low more; The present invention selects the close or the same ultra transparent release agent of refraction coefficient and polyethyleneterephthalate, reduces the influence of release agent to film/sheet material optical property as far as possible, realizes ultra transparent.
Release agent is wanted onset, the more regular spheroidal particle of grain type, and release agent is more little to the optical property influence of film/sheet material.Therefore, patent of the present invention is a release agent through the high transparent grain of selective rule ball-type rate, realizes ultra transparent.
Under the prerequisite that guarantees onset, according to optical principle, the particle diameter of release agent is more little, and microcosmic surface is more near the plane, and release agent is reduced to minimum as far as possible to the influence of film/sheet material optical property, realize ultra transparent.
2, accurate printing effect is good.The anti-stick masterbatch of market supply at present, size distribution is wide, and film top layer particle size is uneven, can have a strong impact on the printing performance of film, and for the accurate printing of this type of shallow reticulated printing, the existence of the antiseized particle of macrobead can make film printing produce white point especially.And the grain type of rule, extremely narrow size distribution can effectively improve the printing performance of film.
3, processing characteristics is excellent.Fundamentally avoid coming off of antiseized particle, the time of accumulated powder and cleaning equipment on the minimizing roller.Effectively avoid the rupture of membranes of film in drawing process, enhance productivity, improve product qualified rate and premium grads rate.
4, splendid anti-adhesion effects.The release agent of dimensioning, narrow diameter distribution, rule has guaranteed the purity of effective antiseized particle, and less addition can guarantee splendid anti-adhesion effects.
5, effective content is brought up to 10000-300000ppm from 3000ppm; The End-Customer addition reduces 70%-99%, reduces client's use cost significantly.
6, double screw extrusion method is avoided traditional one's own department or unit method abrasive silica to disperse and is caused the irregular and a large amount of invalid small-particles of silicon-dioxide grain type to exist in the film and influence the optical property of film, reduces release agent as far as possible the Film Optics Effect on Performance is improved the Film Optics performance.And one's own department or unit method is ground insufficient and oarse-grained existence that cause can influence the printing performance of film, produces white point.
7, technology is simple, and is easy to control, less investment, and the antiseized particle content of onset is high, can significantly reduce the input of masterbatch in the film prodn.
Embodiment
Embodiment one:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and ordinary packing bi oriented polyethylene terephthalate film is special-purpose, is made up of following component and weight part:
Polyethyleneterephthalate 90
Silica 10
Wherein PET selects the film-grade PET Resin/Poyester Chips Bottle Grade for use; Release agent is selected gel method silicon-dioxide for use, and particle diameter is controlled at 3-6um.
Said masterbatch makes according to the following steps:
S1 is predrying;
S2 is by twin screw extruder production, and forcing machine is respectively distinguished temperature 250-290 ℃, engine speed 200r/min-450r/min, electric current 300-400A, the vacuum exhaust of 1-3 section, vacuum tightness-0.05mPa-0.1mPa;
The S3 granulation;
The S4 finished product is dry.
Said material adopts high-accuracy title blanking.Said twin screw extruder screw element adopts the special composition element of high-shear high dispersive.
This technology is to utilize twin screw extruder; Through mixing, fusion, extrude, granulation and process masterbatch; Can not cause many small-particles irregular, small, not onset to exist, thereby realize production efficiently antiseized, ultra transparent masterbatches because of the dispersing technology of traditional situ aggregation method grinding.
Embodiment two:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and ordinary packing bi oriented polyethylene terephthalate film is special-purpose, is made up of following component and weight part:
Polyethyleneterephthalate 77.5
China clay 20
Ethylene bis stearic acid amide 2.5
Wherein polyethyleneterephthalate is selected the film-grade PET Resin/Poyester Chips Bottle Grade for use, and release agent is selected china clay for use, and particle diameter is controlled at about 5-7um.
Embodiment three:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and ordinary packing bi oriented polyethylene terephthalate film is special-purpose, is made up of following component and weight part:
Polyethyleneterephthalate 69.999
Lime carbonate 30
Polyethylene wax 0.001
Wherein polyethyleneterephthalate is selected the film-grade PET Resin/Poyester Chips Bottle Grade for use, and release agent is selected lime carbonate for use, and particle diameter is controlled at about 6-8um.
Contrast test: the bi oriented polyethylene terephthalate film to produce 12um is a benchmark, adds the anti-stick masterbatch of three kinds of prescriptions respectively, and by specifying addition, its test result is following:
Test shows: adopt the twin screw extruder method, select dimensioning for use, median size is that the inorganic particle of 3-10um is that the anti-stick masterbatch that release agent is prepared uses on the bi oriented polyethylene terephthalate film; With respect to the antiseized masterbatch of traditional one's own department or unit method; Its mist degree has obvious reduction, and glossiness increases, and has effectively improved the optical property of bi oriented polyethylene terephthalate film/sheet material; The design of superelevation content; Reduce addition significantly, and reduce use cost significantly, and show very excellent anti-adhesion performance.
Embodiment four:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and optical grade film dedicated parent material is made up of following component and weight part:
Polyethyleneterephthalate 95
Silicate microballon 5
Wherein polyethyleneterephthalate is selected the optical grade PET Resin/Poyester Chips Bottle Grade for use; The release agent median size: about 2um, the grain type is regular spherical granules.
Embodiment five:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and the optical grade film is special-purpose, is made up of following component and weight part:
Polyethyleneterephthalate 69.8
Ceramic bead 30
Polyethylene wax 0.2
Wherein polyethyleneterephthalate is selected the optical grade PET Resin/Poyester Chips Bottle Grade for use; The release agent median size: about 3um, the grain type is regular spherical granules.
Embodiment six:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and the optical grade film is special-purpose, is made up of following component and weight part:
Polyethyleneterephthalate 91.5
Silicate microballon 8
Chlorinatedpolyethylene wax 0.5
Wherein polyethyleneterephthalate is selected the optical grade PET Resin/Poyester Chips Bottle Grade for use; The release agent median size: about 1.0um, the grain type is regular spherical granules.
Contrast test: the bi oriented polyethylene terephthalate film/sheet material to produce 12um is a benchmark, adds the anti-stick masterbatch of three kinds of prescriptions respectively, and by specifying addition, its test result is following:
Test shows: adopt the twin screw extruder method; The high transparent ball-type inorganic particulate of single dimensioning that select that particle diameter is little for use, narrow diameter distribution, 90% size distribution deviation is no more than 1.0um, particle diameter is 0.5-4um is that the anti-stick masterbatch that release agent is prepared uses on bi oriented polyethylene terephthalate film/sheet material; With respect to the antiseized masterbatch of tradition; Show splendid optical property, release agent is reduced to minimum to the influence of film/sheet material optical property, realize the ultra transparent of film/sheet material.
Embodiment seven:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and functional coat base material bi oriented polyethylene terephthalate film is special-purpose, it is characterized in that comprising following component and content (weight part):
Polyethyleneterephthalate 91
Silicon-dioxide 9
Wherein polyethyleneterephthalate is selected the section of film-grade polyethyleneterephthalate for use; Release agent is selected gel method silicon-dioxide, median size 2.5um for use.
Embodiment eight:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and functional coat base material bi oriented polyethylene terephthalate film is special-purpose, it is characterized in that comprising following component and content (weight part):
Polyethyleneterephthalate 81.2
Silicate microballon 18
Polyethylene wax 0.8
Wherein polyethyleneterephthalate is selected the film-grade polyethyleneterephthalate for use, and release agent is selected the silicate microballon for use, about median size 3um.
Embodiment nine:A kind of optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, and functional coat base material bi oriented polyethylene terephthalate film film is special-purpose, it is characterized in that comprising following component and content (weight part):
Polyethyleneterephthalate 73.8
Lime carbonate 25
Ethylene bis stearic acid amide 1.2
Wherein polyethyleneterephthalate is selected the film-grade polyethyleneterephthalate for use, and release agent is selected lime carbonate for use, about median size 1.1um.
Contrast test: the bi oriented polyethylene terephthalate film to produce 5um is a benchmark, adds the anti-stick masterbatch of three kinds of prescriptions respectively, and by specifying addition, its test result is following:
Test shows: adopt the twin screw extruder method; Select that particle diameter is little for use, narrow diameter distribution, particle diameter be that single dimensioning inorganic particle between the 0.5-3um is that the anti-stick masterbatch that release agent is prepared uses on bi oriented polyethylene terephthalate film/sheet material; With respect to the antiseized masterbatch of traditional bi oriented polyethylene terephthalate; Its mist degree has obvious reduction, and glossiness increases, and has effectively improved the optical property of bi oriented polyethylene terephthalate film/sheet material; And show very excellent anti-adhesion performance, and can be used for micron order printing film/articles of sheet material such as shallow reticulated printing.
Said embodiment two to embodiment nine production technique are with embodiment one.
Claims (8)
1. an optical grade bi oriented polyethylene terephthalate film/sheet material is used the anti-stick masterbatch, it is characterized in that, is made up of following component and weight part:
Polyethyleneterephthalate 65-99;
Release agent 1-35;
Said release agent is a grain type rule, and median size is the inorganic particle of 0.5-10um, fusing point: more than 220 degree.
2. according to the said masterbatch of claim 1, it is characterized in that, also comprise dispersion agent, said dispersion agent is one or more of chlorinatedpolyethylene wax, OPE, ethylene bis stearamide, polyethylene wax, and the interpolation weight part of said dispersion agent is at 0.001-5.
3. according to claim 1 or 2 said masterbatch, it is characterized in that said release agent is that particle diameter single dimensioning, grain type between 0.5-4.0um are the inorganic particle of regular high ball-type rate, refraction coefficient is 1.45-1.65, and 90% size distribution deviation is no more than 1.0um.
4. according to claim 1 or 2 said masterbatch, it is characterized in that said release agent is that particle size range is a single dimensioning between the 0.5-3.0um, particle shape type of being spherical granules, size distribution D90 deviation is no more than 1.0um.
5. according to the said masterbatch of above any claim, it is characterized in that said release agent is one or several of silicon-dioxide, lime carbonate, ceramic bead, china clay, silicate microballon.
6. an optical grade bi oriented polyethylene terephthalate film/sheet material is characterized in that with the production technique of anti-stick masterbatch, makes according to the following steps:
S1 is predrying;
S2 is by twin screw extruder production, and forcing machine is respectively distinguished temperature 250-290 ℃, engine speed 200r/min-450r/min, electric current 300-400A, the vacuum exhaust of 1-3 section, vacuum tightness-0.05mPa-0.1mPa;
The S3 granulation;
The S4 finished product is dry.
7. according to the said production technique of claim 6, it is characterized in that said material adopts high-accuracy title blanking.
8. according to the said production technique of claim 6, it is characterized in that said twin screw extruder screw element adopts the special composition element of high-shear high dispersive.
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| CN2012100259784A CN102585458A (en) | 2012-02-07 | 2012-02-07 | Anti-bonding master batch for optical-grade biaxially-oriented PET (polyethylene terephthalate) films/sheets and production process thereof |
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| CN2012100259784A CN102585458A (en) | 2012-02-07 | 2012-02-07 | Anti-bonding master batch for optical-grade biaxially-oriented PET (polyethylene terephthalate) films/sheets and production process thereof |
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| CN104292780A (en) * | 2014-10-27 | 2015-01-21 | 河南卓立膜材料股份有限公司 | Special 5.3-micrometer BOPET for ribbon-type ribbon carbon ribbon |
| CN107892769A (en) * | 2017-11-20 | 2018-04-10 | 东莞市星华包装材料有限公司 | The preparation method and stretched film of a kind of stretched film |
| CN111518371A (en) * | 2020-05-14 | 2020-08-11 | 安徽国风塑业股份有限公司 | High-dispersity BOPET (biaxially-oriented polyethylene terephthalate) opening smooth master batch and preparation method thereof |
| CN114395150A (en) * | 2021-12-29 | 2022-04-26 | 江苏皇冠新材料科技有限公司 | PET film and preparation method thereof, and PET protective film and preparation method thereof |
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| CN117720800A (en) * | 2024-02-07 | 2024-03-19 | 汕头市贝斯特科技有限公司 | Anti-bonding master batch for biaxially oriented polyester film, preparation method of anti-bonding master batch and biaxially oriented polyester film |
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| CN104292780A (en) * | 2014-10-27 | 2015-01-21 | 河南卓立膜材料股份有限公司 | Special 5.3-micrometer BOPET for ribbon-type ribbon carbon ribbon |
| CN104292780B (en) * | 2014-10-27 | 2016-08-24 | 河南卓立膜材料股份有限公司 | Special 5.3-micrometer BOPET for ribbon-type ribbon carbon ribbon |
| CN107892769A (en) * | 2017-11-20 | 2018-04-10 | 东莞市星华包装材料有限公司 | The preparation method and stretched film of a kind of stretched film |
| CN111518371A (en) * | 2020-05-14 | 2020-08-11 | 安徽国风塑业股份有限公司 | High-dispersity BOPET (biaxially-oriented polyethylene terephthalate) opening smooth master batch and preparation method thereof |
| CN114395150A (en) * | 2021-12-29 | 2022-04-26 | 江苏皇冠新材料科技有限公司 | PET film and preparation method thereof, and PET protective film and preparation method thereof |
| CN114395150B (en) * | 2021-12-29 | 2024-04-09 | 江苏皇冠新材料科技有限公司 | PET film and preparation method thereof, PET protective film and preparation method thereof |
| CN114578465A (en) * | 2022-04-08 | 2022-06-03 | 绍兴翔宇绿色包装有限公司 | PET-based diffusion film and preparation method thereof |
| CN114578465B (en) * | 2022-04-08 | 2022-08-26 | 绍兴翔宇绿色包装有限公司 | PET-based diffusion film and preparation method thereof |
| CN117720800A (en) * | 2024-02-07 | 2024-03-19 | 汕头市贝斯特科技有限公司 | Anti-bonding master batch for biaxially oriented polyester film, preparation method of anti-bonding master batch and biaxially oriented polyester film |
| CN117720800B (en) * | 2024-02-07 | 2024-05-24 | 汕头市贝斯特科技有限公司 | Anti-bonding master batch for biaxially oriented polyester film, preparation method of anti-bonding master batch and biaxially oriented polyester film |
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