CN106832811A - A kind of optics polyester of anti-oxidant xanthochromia and preparation method thereof - Google Patents
A kind of optics polyester of anti-oxidant xanthochromia and preparation method thereof Download PDFInfo
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- CN106832811A CN106832811A CN201710031301.4A CN201710031301A CN106832811A CN 106832811 A CN106832811 A CN 106832811A CN 201710031301 A CN201710031301 A CN 201710031301A CN 106832811 A CN106832811 A CN 106832811A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
- C08G63/86—Germanium, antimony, or compounds thereof
- C08G63/866—Antimony or compounds thereof
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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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
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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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
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
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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
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/267—Magnesium carbonate
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- Chemical Kinetics & Catalysis (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The present invention discloses a kind of optics polyester of anti-oxidant xanthochromia, is obtained by the raw material including following parts by weight：Dioctyl phthalate monomer：20000 30000 parts, ethylene glycol：6000 10000 parts, catalyst：5 15 parts, stabilizer：10 25 parts, opening agent：2 10 parts, phosphite ester kind antioxidant：5 30 parts, magnesium salts：0.1 2 parts.Optics polyester of the invention has colour good well, antioxygen property, anti-ultraviolet property, thermal stability and wet and heat ageing resistant performance on the basis of optical property is ensured, can not turn yellow under conditions of long-term use, there is tensile strength higher simultaneously, excellent size stability, is particularly well-suited to the electronics fields such as membrane screen, backboard membrane.
Description
Technical field
The present invention relates to a kind of optics polyester of anti-oxidant xanthochromia and preparation method thereof.
Background technology
With the fast development of the new energy such as FPD, energy-saving and emission-reduction and photovoltaic generation, optics mylar is increasingly
Show its unique advantage.In recent years with the rise of domestic advanced lines liquid crystal panel, for upstream critical material such as light
The demand for learning film is also significantly increased.Optical film application amount in liquid crystal panel is larger, and account for liquid crystal panel cost 10% is left
The right side, with 20,000,000,000 yuan of calculating of a 8 generation line gross investment, the demand of its optical film just reaches 2,000,000,000 yuan.Such as LCDs, most
The 7-8 PET film with difference in functionality can be used less（2 optical diffusion films, 1 brightness enhancement film, 2 phase retardation films, 1 is prevented
Glare film, 1 shield conductive film）.Digital imagery and flat panel display turn into the development trend in the whole world, optical level polyester film
Used as the upstream materials of FPD, its market potential can not be ignored.
But when being used as optical grade membrane screen, the antioxygenic property and colourity of polyester just become particularly significant.
The mobile phone plane plate membrane screen of many market circulations there occurs slow oxidation in even giving birth to factory's process under the conditions of light, heat etc.
And influence quality and the effect screen of turning yellow of degrading.Therefore the development for the polyester film of the anti-oxidant flavescence of energy is always very urgent
Cut the problem of solution.
Addition antioxidant is the method for reaching antioxygen purpose commonly used in plastic products in the polyester, but as light
The selection of antioxidant in polyester is learned, first has to consider that its optical property can not be influenceed, while can not introduce variegated, so antioxygen
The selection and post processing of agent are very necessary.If can keep optical property do not reduce while reach it is transparent, prevent aging
The purpose of discoloration, its market prospects must be very wide.
The content of the invention
The technical problem to be solved in the present invention is to overcome existing defect, there is provided a kind of optics of anti-oxidant xanthochromia gathers
Ester.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
A kind of optics polyester of anti-oxidant xanthochromia, is obtained by the raw material including following parts by weight：
Dioctyl phthalate monomer：20000-30000 parts,
Ethylene glycol：6000-10000 parts,
Catalyst：5-15 parts,
Phosphoric acid ester stabilizer：10-25 parts,
Opening agent：2-10 parts,
Phosphite ester kind antioxidant：5-30 parts,
Magnesium salts：0.1-2 parts.
In a preferred embodiment of the present invention, the dioctyl phthalate monomer is terephthalic acid (TPA) or M-phthalic acid.
In a preferred embodiment of the present invention, the catalyst is antimony system, titanium system or germanium series catalysts.
In a preferred embodiment of the present invention, the phosphoric acid ester stabilizer is trimethyl phosphate.
In a preferred embodiment of the present invention, the opening agent be barium sulfate, calcium carbonate and silica at least
It is a kind of.
In a preferred embodiment of the present invention, the phosphite ester kind antioxidant is double（2,4- DI-tert-butylphenol compounds）Season
Penta tetrol diphosphites, three (2,4- di-tert-butyl-phenyls) phosphite esters or three（Nonyl is for phenyl）Phosphite ester.
In a preferred embodiment of the present invention, the magnesium salts is magnalium hydrotalcite, magnesium carbonate or magnesium acetate.
The preparation method of the optics polyester of above-mentioned anti-oxidant xanthochromia, comprises the following steps：
（1）Dioctyl phthalate monomer, ethylene glycol, catalyst, phosphoric acid ester stabilizer and opening agent are mixed, heating is esterified；
（2）After esterification terminates, phosphite ester kind antioxidant and magnesium salts are added, vacuumized, carry out polycondensation, obtain the anti-oxidant Huang
The optics polyester of change.
In a preferred embodiment of the present invention, step（1）The temperature of esterification is 230~260 DEG C, and pressure is 300
~400 kPa.
In a preferred embodiment of the present invention, step（2）The temperature of polycondensation reaction is 260~280 DEG C, pressure≤
50Pa。
The beneficial effects of the invention are as follows：Phosphite ester kind antioxidant is added by during poly-vinegar is synthesized, increasing is reached
Strong antioxidant effect does not introduce variegated purpose simultaneously, and this is that phenols and amine antioxidants cannot accomplish, while introducing magnesium salts
Purpose is that the hydrolysis for preventing phosphite ester kind antioxidant is failed, and strengthens antioxidant effect.Polyester product colourity synthesized by the present invention
Excellent, yellowing is low, resistance to oxidation and ultraviolet irradiation, long-term use non-oxidation yellowing, long service life, while having higher
Tensile strength, excellent size stability is particularly well-suited to the fields such as the electronic products such as membrane screen, backboard membrane.
Specific embodiment
The preferred embodiments of the present invention are illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
The g of terephthalic acid (TPA) 2000, the g of ethylene glycol 800, the g of catalyst glycol antimony 0.8, the g of stabilizer trimethyl phosphate 1, open
Mouth agent particle diameter is 5 μm of the g of silica 0.3, antioxidant three (2,4- di-tert-butyl-phenyl) g of phosphite ester 0.5, magnesium carbonate
0.02 g。
Preparation process is as follows：
(1) terephthalic acid (TPA), ethylene glycol, catalyst, opening agent and stabilizer are well mixed, are added in 5 L reactors, stirred
Half an hour is mixed, stirring is then shut off, vacuum system is opened and is slowly extracted oxygen in kettle out, be then passed through nitrogen to normal pressure, repetition is taken out
The logical nitrogen of vacuum 3 times, intensification of then pressurizeing carries out esterification, and reaction temperature maintains 230-260 DEG C, and pressure is maintained in kettle
In 350kPa or so, esterification degree is judged by process tower top water yield, after esterification reaches more than 95%, esterification is anti-
Should terminate, now in kettle pressure in 20 below kPa, tower top temperature is below 100 DEG C.
(2) after esterification terminates, process tower valve is closed, well mixed in advance three (2,4- is added from loading hopper
Di-tert-butyl-phenyl) phosphite ester and magnesium carbonate, loading hopper is vacuumized into logical nitrogen three times, then pass to the nitrogen of 150 kPa
Hopper valve is opened afterwards to add, and vacuum-pumping valve is opened completely after pressure in kettle slowly then is drawn into -100 kPa,
High vacuum（30Pa or so）Polycondensation reaction is carried out, period temperature in the kettle is maintained between 265-270 DEG C；
(3) polycondensation latter stage is using intrinsic viscosity >=0.7 as terminal, and the optics that discharging, cooling, pelletizing obtain anti-oxidant xanthochromia gathers
Ester；
(4) the optics polyester of gained is obtained into anti-oxidant xanthochromia optical polyester film after biaxial tension.
Embodiment 2
The g of M-phthalic acid 2000, the g of ethylene glycol 850, the g of catalyst glycol antimony 0.9, the g of stabilizer trimethyl phosphate 1.2,
Opening agent particle diameter is 5 μm of the g of silica 0.5, antioxidant three (2,4- di-tert-butyl-phenyl) g of phosphite ester 0.8, vinegar
The g of sour magnesium 0.04.
(1) M-phthalic acid, ethylene glycol, catalyst, opening agent and stabilizer are well mixed, are added to 5 L reactors
In, half an hour is stirred, stirring is then shut off, open vacuum system and slowly extract oxygen in kettle out, nitrogen to normal pressure is then passed through, weight
Logical nitrogen is vacuumized again 3 times, intensification of then pressurizeing carries out esterification, and reaction temperature maintains 230-260 DEG C, pressure in kettle
350kPa or so is maintained, esterification degree is judged by process tower top water yield, after esterification reaches more than 95%, ester
Change reaction terminate, now in kettle pressure in 20 below kPa, tower top temperature is below 100 DEG C.
(2) after esterification terminates, process tower valve is closed, well mixed in advance three (2,4- is added from loading hopper
Di-tert-butyl-phenyl) phosphite ester and magnesium acetate, loading hopper is vacuumized into logical nitrogen three times, then pass to the nitrogen of 150 kPa
Hopper valve is opened afterwards to add, and vacuum-pumping valve is opened completely after pressure in kettle slowly then is drawn into -100 kPa,
30Pa or so carries out polycondensation reaction, and period temperature in the kettle is maintained between 265-270 DEG C；
(3) polycondensation latter stage is using intrinsic viscosity >=0.7 as terminal, and the optics that discharging, cooling, pelletizing obtain anti-oxidant xanthochromia gathers
Ester；
(4) the optics polyester of gained is obtained into anti-oxidant xanthochromia optical polyester film after biaxial tension.
Embodiment 3
The g of terephthalic acid (TPA) 2000, the g of ethylene glycol 850, the g of catalyst glycol antimony 1, the g of stabilizer trimethyl phosphate 1.5, open
Mouth agent particle diameter is 5 μm of the g of calcium carbonate 0.5, antioxidant three（Nonyl is for phenyl）The g of phosphite ester 1, the g of magnesium acetate 0.08.
(1) terephthalic acid (TPA), ethylene glycol, catalyst, opening agent and stabilizer are well mixed, are added to 5 L reactors
In, half an hour is stirred, stirring is then shut off, open vacuum system and slowly extract oxygen in kettle out, nitrogen to normal pressure is then passed through, weight
Logical nitrogen is vacuumized again 3 times, intensification of then pressurizeing carries out esterification, and reaction temperature maintains 230-260 DEG C, pressure in kettle
350kPa or so is maintained, esterification degree is judged by process tower top water yield, after esterification reaches more than 95%, ester
Change reaction terminate, now in kettle pressure in 20 below kPa, tower top temperature is below 100 DEG C.
(2) after esterification terminates, process tower valve is closed, well mixed in advance three is added from loading hopper（Nonyl
For phenyl）Phosphite ester and magnesium acetate, logical nitrogen is vacuumized three times by loading hopper, is opened after then passing to the nitrogen of 150 kPa
Hopper valve is added, and vacuum-pumping valve is opened completely after pressure in kettle slowly then is drawn into -100 kPa, left in 30Pa
The right side carries out polycondensation reaction, and period temperature in the kettle is maintained between 265-270 DEG C；
(3) polycondensation latter stage is using intrinsic viscosity >=0.7 as terminal, and the optics that discharging, cooling, pelletizing obtain anti-oxidant xanthochromia gathers
Ester；
(4) the optics polyester of gained is obtained into anti-oxidant xanthochromia optical polyester film after biaxial tension.
Embodiment 4
The g of terephthalic acid (TPA) 2000, the g of ethylene glycol 900, the g of catalyst glycol antimony 1, the g of stabilizer trimethyl phosphate 1.5, open
Mouth agent particle diameter is 5 μm of the g of silica 0.5, and antioxidant is double（2,4- DI-tert-butylphenol compounds）Pentaerythritol diphosphites 2
G, the g of magnesium acetate 0.12.
(1) terephthalic acid (TPA), ethylene glycol, catalyst, opening agent and stabilizer are well mixed, are added to 5 L reactors
In, half an hour is stirred, stirring is then shut off, open vacuum system and slowly extract oxygen in kettle out, nitrogen to normal pressure is then passed through, weight
Logical nitrogen is vacuumized again 3 times, intensification of then pressurizeing carries out esterification, and reaction temperature maintains 230-260 DEG C, pressure in kettle
350kPa or so is maintained, esterification degree is judged by process tower top water yield, after esterification reaches more than 95%, ester
Change reaction terminate, now in kettle pressure in 20 below kPa, tower top temperature is below 100 DEG C.
(2) after esterification terminates, process tower valve is closed, is added from loading hopper well mixed in advance double（2,4-
DI-tert-butylphenol compounds）Pentaerythritol diphosphites and magnesium acetate, logical nitrogen is vacuumized three times by loading hopper, then passes to 150
Hopper valve is opened after the nitrogen of kPa to add, and then slowly is drawn to be opened completely after -100 kPa by pressure in kettle and is taken out true
Empty valve, polycondensation reaction is carried out in 30Pa or so, and period temperature in the kettle is maintained between 265-270 DEG C；
(3) polycondensation latter stage is using intrinsic viscosity >=0.7 as terminal, and the optics that discharging, cooling, pelletizing obtain anti-oxidant xanthochromia gathers
Ester；
(4) the optics polyester of gained is obtained into anti-oxidant xanthochromia optical polyester film after biaxial tension.
Embodiment 5
The g of terephthalic acid (TPA) 2000, the g of ethylene glycol 900, the g of catalyst glycol antimony 1.2, the g of stabilizer trimethyl phosphate 1, open
Mouth agent particle diameter is 5 μm of the g of silica 0.3, and antioxidant is double（2,4- DI-tert-butylphenol compounds）Pentaerythritol diphosphites 2.4
G, the g of magnalium hydrotalcite 0.2.
(1) terephthalic acid (TPA), ethylene glycol, catalyst, opening agent and stabilizer are well mixed, are added to 5 L reactors
In, half an hour is stirred, stirring is then shut off, open vacuum system and slowly extract oxygen in kettle out, nitrogen to normal pressure is then passed through, weight
Logical nitrogen is vacuumized again 3 times, intensification of then pressurizeing carries out esterification, and reaction temperature maintains 230-260 DEG C, pressure in kettle
350kPa or so is maintained, esterification degree is judged by process tower top water yield, after esterification reaches more than 95%, ester
Change reaction terminate, now in kettle pressure in 20 below kPa, tower top temperature is below 100 DEG C.
(2) after esterification terminates, process tower valve is closed, is added from loading hopper well mixed in advance double（2,4-
DI-tert-butylphenol compounds）Pentaerythritol diphosphites and magnalium hydrotalcite, logical nitrogen is vacuumized three times by loading hopper, is then passed to
Hopper valve is opened after the nitrogen of 150 kPa to add, and is opened completely after pressure in kettle slowly then is drawn into -100 kPa
Vacuum-pumping valve, polycondensation reaction is carried out in 30Pa or so, and period temperature in the kettle is maintained between 265-270 DEG C；
(3) polycondensation latter stage is using intrinsic viscosity >=0.7 as terminal, and the optics that discharging, cooling, pelletizing obtain anti-oxidant xanthochromia gathers
Ester；
(4) the optics polyester of gained is obtained into anti-oxidant xanthochromia optical polyester film after biaxial tension.
The performance test of the anti-oxidant xanthochromia optical polyester film of embodiment 1-5 gained is as shown in table 1.
Table 1
The present invention has colour, antioxygen good well compared with conventional polyester film on the basis of optical property is ensured
Performance, anti-ultraviolet property, thermal stability and wet and heat ageing resistant performance, can not turn yellow under conditions of long-term use, while
With tensile strength higher, excellent size stability is particularly well-suited to the electronics fields such as membrane screen, backboard membrane.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in of the invention
Within protection domain.
Claims (10)
1. a kind of optics polyester of anti-oxidant xanthochromia, is obtained by the raw material including following parts by weight：
Dioctyl phthalate monomer：20000-30000 parts,
Ethylene glycol：6000-10000 parts,
Catalyst：5-15 parts,
Phosphoric acid ester stabilizer：10-25 parts,
Opening agent：2-10 parts,
Phosphite ester kind antioxidant：5-30 parts,
Magnesium salts：0.1-2 parts.
2. the optics polyester of anti-oxidant xanthochromia according to claim 1, it is characterised in that：The dioctyl phthalate monomer is to benzene two
Formic acid or M-phthalic acid.
3. the optics polyester of anti-oxidant xanthochromia according to claim 1, it is characterised in that：The catalyst is antimony system, titanium system
Or germanium series catalysts.
4. the optics polyester of anti-oxidant xanthochromia according to claim 1, it is characterised in that：The phosphoric acid ester stabilizer is phosphorus
Sour trimethyl.
5. the optics polyester of anti-oxidant xanthochromia according to claim 1, it is characterised in that：The opening agent is barium sulfate, carbon
At least one in sour calcium and silica.
6. the optics polyester of anti-oxidant xanthochromia according to claim 1, it is characterised in that：The phosphite ester kind antioxidant is
It is double（2,4- DI-tert-butylphenol compounds）Pentaerythritol diphosphites, three (2,4- di-tert-butyl-phenyls) phosphite esters or three（Nonyl
For phenyl）Phosphite ester.
7. the optics polyester of anti-oxidant xanthochromia according to claim 1, it is characterised in that：The magnesium salts be magnalium hydrotalcite,
Magnesium carbonate or magnesium acetate.
8. the preparation method of the optics polyester of anti-oxidant xanthochromia described in claim 1, comprises the following steps：
（1）Dioctyl phthalate monomer, ethylene glycol, catalyst, phosphoric acid ester stabilizer and opening agent are mixed, heating is esterified；
（2）After esterification terminates, phosphite ester kind antioxidant and magnesium salts are added, vacuumized, carry out polycondensation, obtain the anti-oxidant Huang
The optics polyester of change.
9. preparation method according to claim 8, it is characterised in that：Step（1）The temperature of esterification is 230~260
DEG C, pressure is 300~400 kPa.
10. preparation method according to claim 8, it is characterised in that：Step（2）The temperature of polycondensation reaction is 260~280
DEG C, pressure≤50Pa.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111087594A (en) * | 2018-10-23 | 2020-05-01 | 中国石油化工股份有限公司 | Synthetic method of uvioresistant titanium polyester |
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