CN106046701A - Weather-proof master batch used for high-temperature polyester - Google Patents
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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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- 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
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- 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
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic 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
- C08K5/16—Nitrogen-containing compounds
- C08K5/29—Compounds containing one or more carbon-to-nitrogen double bonds
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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
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/35—Heterocyclic compounds having nitrogen in the ring having also oxygen in the ring
- C08K5/353—Five-membered rings
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- 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
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
A weather-proof master batch used for high-temperature polyester is disclosed. The master batch is prepared by mixing 100 parts by weight of substrate resin, 10-50 parts by weight of a weather-proofing agent, 0.1-0.5 part by weight of an antioxidant, 0.2-0.5 part by weight of a release agent and 0.02-0.2 part by weight of an ultraviolet light absorber. The master batch having a certain concentration is prepared through adopting composite polyester resin as a carrier. Through optimizing the formula and the process of the carrier resin, the activity of the weather-proofing agent is maintained to the utmost, and dry processing rigorous conditions for PET resin are met. The master batch is used for PET/PCT resin modification, thus avoiding performance reduction, yellowing and other negative influences caused by repeated processing of most resin, bringing convenience for down-stream processing, and making the modification more environmental friendly and cleaner.
Description
Technical field
The present invention relates to a kind of weatherable master batch, particularly to a kind of weather-proof masterbatch of high-temperature polyester.
Background technology
It is saturated that polyethylene terephthalate (Polyethylene terephthalate is called for short PET) belongs to crystal type
Polyester resin, generally milky or light yellow, the polymer of highly crystalline, surface smooths glossy.It is in wider temperature
In the range of there is excellent physical and mechanical properties, life-time service temperature is up to 120 DEG C, and short-period used temperature, can up to 150 DEG C
Resistance to-70 DEG C of low temperature, and the least to its mechanical impact during high and low temperature；Electrical insulating property is excellent, creep resistance, and fatigue durability is resistance to
Frictional property, dimensional stability is the most fine；Chemical-resistant is stable, and gas and vapor permeability are low, have good obstruct gas,
Water, oil and abnormal flavour performance；Transparency is high, can shielding of ultraviolet, glossiness is good；Nontoxic, tasteless, wholesomeness is good.Owing to becoming
This is cheap, and fibroblast and film property are excellent, are spun into ester fiber in a large number at present；Be made into thin film for recording, recording a video, cinematographic film
Deng substrate, dielectric film, product packaging；It is blown to various container；It is made into electrical component, bearing, gear etc..
Then, PET contains a large amount of ester and is good for, and can decompose, even if in ambient temperature not under acid, alkali and steam effect
Be the highest on the premise of, due to material under arms during face various complicated hygrothermal environment condition, during life-time service also
Can decompose and generate acid and alcohol, and the acid generated can be further exacerbated by the speed that PET decomposes, and causes mechanical performance to decline, greatly
Limit greatly its application.
Amorphization poly terephthalic acid diol ester, refers mainly to the APET with dicarboxylic acids modification by copolymerization and is total to dihydroxylic alcohols
The poly-modified resin that PETG is matrix, also keeps good toughness under low temperature, the transparency of goods is higher, it might even be possible to nothing
Color, but material property intensity is not enough, glass transition temperature is relatively low, easy thermal deformation and easily sticking together under high temperature.
PCT resin is that a kind of thermoplastic high temperature resistant, semicrystalline is high temperature resistant, the thermoplastic of semicrystalline,
It is the another new product of polyester family, Yisiman Chemical Company of the U.S. (Eastman) realized industrialization in 1987 and monopolize so far
The production of PCT.PCT resin is by 1,4 cyclohexane dimethanol (being called for short CHDM) and dimethyl terephthalate (DMT) (being called for short DMT) polymerization
Form.The main production raw material of PCT resin is CHDM, DMT or p-phthalic acid (being called for short PTA) etc., and DMT is PTA and methanol
Product.PCT as a kind of new varieties of polyester family, its character and polyethylene terephthalate (PET) and poly-right
Terephtha-late (PBT) is similar, has the intensity of PBT, toughness, and thermostability is better than PET.PCT has higher heat-resisting
Property, its continuous application temperature range is between 130 DEG C～150 DEG C, and deflection temperature is 243 DEG C～260 DEG C, can substitute for resistance to thermal level
PBT be used as printed circuit board (PCB) produce in wave-soldering fishplate bar and Reflow Soldering fishplate bar.With PCT (poly terephthalic acid 1,4-hexamethylene
Alkane diformazan alcohol ester) it is the resin of matrix, heat resistance is good, but material property intensity is not enough, and cost is high.
1) existing technology has the acid carrying out blocking or neutralizing degraded generation by adding alkaline matter, can slow down PET
Degradation speed；Patent 201310636292.3 discloses the preparation method of a kind of toughness reinforcing weather-proof PET alloy, and it uses toughener
AX8900 and METABLEN S2100 improves the weather resistance of material；Patent 201310444150.7 application discloses a kind of tool
Have that hydrolysis is weather-proof and the PET alloy material of radiation resistance, its use phenyl glycidyl ether, bisphenol-A bisglycidyl ether,
Carboxyl after hydrolysis is carried out terminating reaction by the hydrolysis-resisting agents such as carbodiimides, thus reaches weather-proof purpose.
Making a general survey of prior art feature, a class improves the weather-proof of polyester material to add antioxidant and UV absorbent
Property, an other class is neutralized with the carboxylic acid produced after degrading PET, reaches to slow down PET degraded purpose, and these substantially belong to one
Plant the measure and method remedied.
Summary of the invention
It is an object of the invention to provide a kind of weather-proof masterbatch of high-temperature polyester, with composite polyester resin as carrier, make
Certain density weatherable master batch, is used further to the modification of PET/PCT resin, and in so avoiding major part resin repeats processing
The negative effects such as the hydraulic performance decline that brought, xanthochromia, also offer convenience for Downstream processing, more environmentally friendly more clean.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of weather-proof masterbatch of high-temperature polyester, by weight, is mixed by following raw material components: matrix resin 100
Part, weather resisting agent 10-50 part, antioxidant 0.1-0.5 part, releasing agent 0.2-0.5 part, UV absorbent 0.02-0.2 part；Described
Matrix resin is APET, or described matrix resin is the most composed of the following components: the one in PET, PBT or two
Plant 30-70%, one or both 30-70% in APET, PETG.
Conventional PET/PCT ((poly terephthalic acid 1,4 cyclohexane dimethanol ester)) modification is exactly by PET/PCT resin
Mix with various auxiliary agents, but, owing to PET/PCT fusing point is high, and auxiliary agent fusing point is relatively low, and dry run is cumbersome, and the most dry
Many hybrid process of PET/PCT after dry are easily caused the problem such as xanthochromia, hydraulic performance decline, and the present invention is with specific complex polyester tree
Fat is carrier, coordinates specific auxiliary agent, makes certain density weatherable master batch, is used further to the modification of PET/PCT resin.This is weather-proof
Master batch fusing point, more than 180 DEG C, so provides guarantee for being dried according to common process after premixing with PET/PCT；Additionally lead to
Cross the formulation optimization to carrier so that it is within processing temperature can be controlled in 220 DEG C, remain the work of weather resisting agent to the full extent
Property；This weatherable master batch, after pre-crystallized process, can directly be mixed with PET/PCT dry, simple and easy, the most directly
Can be modified processing, it is not necessary to repeatedly mix, in so avoiding resin repeats hydraulic performance decline, the xanthochromia that processing is brought
Deng negative effect, also offer convenience for Downstream processing, more environmentally friendly more clean.The weatherable master batch of the present invention for PET/PCT point
Minor structure feature, to viscosify chain extending reaction extruding technology to improve the molecular weight of PET/PCT, to reach weather-proof purpose.
The weatherable master batch of the present invention passes through structure similar compatibility principle, is not affecting optical property and the machinery of PET/PCT
On the premise of performance, matrix resin is combined in molecular level level, the advantage fully utilizing several resin, takes long benefit
Short, destroy the partial order molecular chain structure of crystalline polymer, in OK range, reduce processing temperature, overcome extrusion temperature
The too high deficiencies such as weather resisting agent activity inefficacy that cause, can ensure again the heat-resistant deformation performance of material simultaneously, be difficult to adhesion, for follow-up
PET/PCT high temperature drying processes provides guarantee.
As preferably, described weather resisting agent is selected from epoxies macromolecule chain extender PLA880, epoxies macromolecule chain extender
PLA-001,4,4 ' methyl diphenylene diisocyanates, toluene di-isocyanate(TDI), 2,2'-(1,3-phenylene)-bisoxazoline, bar
One or more in this husband chain extender ADR-4370S.Weather resisting agent has and has very with PET macromolecular chain end carboxyl, hydroxyl
Good reactivity, and the optical property of PET/PCT resin is affected little, after reaction extrusion process, it is greatly improved
The molecular weight of PET/PCT, thus play weather-proof effect, after long-term ageing, PET/PCT property retention rate is the highest.
As preferably, described antioxidant is selected from antioxidant 1010, antioxidant 1076, irgasfos 168, antioxidant 1098, resists
One or more in oxygen agent P-EPQ, antioxidant PEP-36A, antioxidant 300, antioxidant S-9299.
As preferably, described releasing agent is releasing agent PETs or releasing agent GSC-9032PC.
As preferably, described UV absorbent one in UV-234, UV-531, UV-4602, UV-3638F or
Several.
As preferably, during preparation by pre-for raw material components mixed after, melt extrude pelletize by double screw extruder, prepare resistance to
Wait master batch；Double screw extruder each district processing temperature is: district's temperature 120-160 DEG C, two district's temperature 160-180 DEG C, three district's temperature
Spend 170-190 DEG C, four district's temperature 170-190 DEG C, five district's temperature 170-190 DEG C, six district's temperature 180-200 DEG C, seven district's temperature
170-200 DEG C, eight district's temperature 180-200, nine district's temperature 180-210 DEG C, ten district's temperature 180-210 DEG C, head temperature 180-220
℃；Screw speed is 200-500rpm.The present invention, by controlling above-mentioned specific processing technique, can at utmost retain weather-proof
The reactivity of agent, also to prevent xanthochromia, is improving weatherability during PET/PCT reactive extrursion under relatively few additive
And mechanical performance.
As preferably, the weatherable master batch prepared is vacuum dried 3-5 hour at 60-80 DEG C, then pre-at 80-120 DEG C
Finished product is obtained after crystallizing 2-5 hour.So be conducive to particle surface formed crystalline texture, improve master batch temperature tolerance, for follow-up with
When PET/PCT premix uses, high temperature drying opposing adhesion provides safeguard.
The invention has the beneficial effects as follows:
1, the weatherable master batch of the present invention is for the molecular structure feature of PET/PCT, to viscosify chain extending reaction extruding technology
Improve the molecular weight of PET/PCT, to reach weather-proof purpose.
2, the weatherable master batch of the present invention passes through structure similar compatibility principle, is not affecting optical property and the machine of PET/PCT
On the premise of tool performance, matrix resin is combined in molecular level level, the advantage fully utilizing several resin, takes long benefit
Short, destroy the partial order molecular chain structure of crystalline polymer, in OK range, reduce processing temperature, overcome extrusion temperature
The too high deficiencies such as weather resisting agent activity inefficacy that cause, can ensure again the heat-resistant deformation performance of material simultaneously, be difficult to adhesion, for follow-up
PET high temperature drying processes provides guarantee.
3, the present invention is with specific composite polyester resin as carrier, coordinates specific auxiliary agent, makes certain density weather-proof
Master batch, the remote fusing point of its weatherable master batch is higher than conventional drying temperature, and can form crystalline texture at particle surface by pre-crystallized,
Effectively stop particle adhesion under the conditions of high temperature drying, be used further to the modification of PET/PCT resin, can directly be mixed dry, letter
Single convenient, the most directly can be modified processing, it is not necessary to repeatedly mix, the processing that repeats that in so avoiding resin is carried
The hydraulic performance decline that comes, the negative effect such as xanthochromia, also offer convenience for Downstream processing, more environmentally friendly more cleans.
4, this preparation method technique is simple, it is easy to industrialized production.
Detailed description of the invention
Below by specific embodiment, technical scheme is described in further detail.
In the present invention, if not refering in particular to, the raw material used and equipment etc. are all commercially available or commonly used in the art.
Method in following embodiment, if no special instructions, is the conventional method of this area.
Total embodiment
A kind of weather-proof masterbatch of high-temperature polyester, by weight, is mixed by following raw material components: matrix resin 100
Part, weather resisting agent 10-50 part, antioxidant 0.1-0.5 part, releasing agent 0.2-0.5 part, UV absorbent 0.02-0.2 part；Described
Matrix resin is APET, or described matrix resin is the most composed of the following components: the one in PET, PBT or two
Plant 30-70%, one or both 30-70% in APET, PETG.Described weather resisting agent is selected from epoxies macromolecule chain extender
PLA880, epoxies macromolecule chain extender PLA-001,4,4 ' methyl diphenylene diisocyanates, toluene di-isocyanate(TDI), 2,
One or more in 2'-(1,3-phenylene)-bisoxazoline, BASF chain extender ADR-4370S.Described antioxidant is selected from anti-
Oxygen agent 1010, antioxidant 1076, irgasfos 168, antioxidant 1098, antioxidant P-EPQ, antioxidant PEP-36A, antioxidant 300,
One or more in antioxidant S-9299.Described releasing agent is releasing agent PETs or releasing agent GSC-9032PC.Described ultraviolet
One or more in UV-234, UV-531, UV-4602, UV-3638F of light absorbers.
Specific embodiment 1
Formula: PET resin (commercially available) 30kg, PETG resin (commercially available) 70kg, weather resisting agent PLA-001 (commercially available) 10kg, anti-
Oxygen agent 1010 (commercially available) 0.1kg, irgasfos 168 (commercially available) 0.1kg, PETs releasing agent (commercially available) 0.2kg, UV absorbent
UV-4602 (commercially available) 0.02kg.
Specific embodiment 2
Formula: PBT resin (commercially available) 60kg, APET resin (commercially available) 40kg, weather resisting agent 2,2'-(1,3-phenylene)-two
Oxazoline (commercially available) 50kg, antioxidant 1010 0.1kg, irgasfos 168 0.2kg, releasing agent GSC-9032PC (commercially available)
0.5kg, UV absorbent UV-234 0.2kg.
Specific embodiment 3
Formula: PBT resin (commercially available) 70kg, PETG resin (commercially available) 30kg, weather resisting agent 2,2'-(1,3-phenylene)-two
Oxazoline (commercially available) 40kg, antioxidant 1010 0.2kg, irgasfos 168 0.2kg, releasing agent GSC-9032PC (commercially available)
0.3kg, ultraviolet absorbent UV-531 (commercially available) 0.1kg.
Specific embodiment 4
Formula: PET resin (commercially available) 10kg, PBT resin (commercially available) 40kg, PETG resin (commercially available) 50kg, weather resisting agent 4,
4 ' methyl diphenylene diisocyanates (commercially available) 30kg, antioxidant 1010 0.2kg, irgasfos 168 0.2kg, releasing agent PETs
(commercially available) 0.3kg, ultraviolet absorbent UV-531 (commercially available) 0.05kg.
Specific embodiment 5
Formula: PET resin (commercially available) 5kg, PBT resin (commercially available) 50kg, PETG resin (commercially available) 30kg, PETG resin
(commercially available) 15kg, weather resisting agent 2,2'-(1,3-phenylene)-bisoxazoline (commercially available) 35kg, antioxidant 1010 0.2kg, antioxidant
168 0.2kg, antioxidant PEP-360.1kg, releasing agent PETs (commercially available) 0.3kg, UV absorbent UV-3638F (commercially available)
0.05kg。
Specific embodiment 6
Formula: APET resin (commercially available) 100kg, weather resisting agent 4,4 ' methyl diphenylene diisocyanates (commercially available) 25kg, anti-
Oxygen agent 1010 0.1kg, irgasfos 168 0.2kg, releasing agent PETs (commercially available) 0.3kg, ultraviolet absorbent UV-531 (commercially available)
0.05kg。
During preparation by pre-for raw material components mixed after, melt extrude pelletize by double screw extruder, prepare weatherable master batch；Double
Screw extruder each district processing temperature is: district's temperature 120-160 DEG C, two district's temperature 160-180 DEG C, three district's temperature 170-190
DEG C, four district's temperature 170-190 DEG C, five district's temperature 170-190 DEG C, six district's temperature 180-200 DEG C, seven district's temperature 170-200 DEG C, eight
District's temperature 180-200, nine district's temperature 180-210 DEG C, ten district's temperature 180-210 DEG C, head temperature 180-220 DEG C；Screw speed
For 200-500rpm.The weatherable master batch prepared is vacuum dried 3-5 hour at 60-80 DEG C, then pre-crystallized at 80-120 DEG C
Finished product is obtained after 2-5 hour.
During use, in 100kgPET resin, weatherable master batch 2-5kg of the present invention.
Comparative example: pure PET carries out burn-in test, test condition is 121 DEG C, 100% humidity, 48h；Pure PET hot strength
About 50% is declined with percentage elongation.
As a example by the weatherable master batch that example 5 prepares, to PET after in PET resin, interpolation accounts for PET resin weight 2% and 3%
Carrying out burn-in test, test condition is 121 DEG C, 100% humidity, 48h；Hot strength and reserved elongation at break test result
As follows:
| Weatherable master batch addition | 0wt% | 2wt% | 3wt% |
| Hot strength retention rate/% | 45.4 | 89.3 | 95.2 |
| Reserved elongation at break/% | 50.2 | 88.5 | 92.7 |
。
Embodiment described above is the one preferably scheme of the present invention, not makees the present invention any pro forma
Limit, on the premise of without departing from the technical scheme described in claim, also have other variant and remodeling.
Claims (7)
1. the weather-proof masterbatch of high-temperature polyester, it is characterised in that by weight, following raw material components be mixed: base
Body resin 100 parts, weather resisting agent 10-50 part, antioxidant 0.1-0.5 part, releasing agent 0.2-0.5 part, UV absorbent 0.02-
0.2 part；Described matrix resin is APET, or described matrix resin is the most composed of the following components: in PET, PBT
One or both 30-70%, one or both 30-70% in APET, PETG.
A kind of weather-proof masterbatch of high-temperature polyester the most according to claim 1, it is characterised in that: described weather resisting agent is selected from epoxy
Family macromolecule chain extender PLA880, epoxies macromolecule chain extender PLA-001,4,4 ' methyl diphenylene diisocyanates, toluene
One or more in diisocyanate, 2,2'-(1,3-phenylene)-bisoxazoline, BASF chain extender ADR-4370S.
A kind of weather-proof masterbatch of high-temperature polyester the most according to claim 1, it is characterised in that: described antioxidant is selected from antioxygen
Agent 1010, antioxidant 1076, irgasfos 168, antioxidant 1098, antioxidant P-EPQ, antioxidant PEP-36A, antioxidant 300, anti-
One or more in oxygen agent S-9299.
A kind of weather-proof masterbatch of high-temperature polyester the most according to claim 1, it is characterised in that: described releasing agent is releasing agent
PETs or releasing agent GSC-9032PC.
A kind of weather-proof masterbatch of high-temperature polyester the most according to claim 1, it is characterised in that: described UV absorbent is selected
One or more in UV-234, UV-531, UV-4602, UV-3638F.
6. according to the weather-proof masterbatch of a kind of high-temperature polyester described in claim 1-5 any one, it is characterised in that: will during preparation
Raw material components pre-mixed after, melt extrude pelletize by double screw extruder, prepare weatherable master batch；The each district of double screw extruder adds
Work temperature is: district's temperature 120-160 DEG C, two district's temperature 160-180 DEG C, three district's temperature 170-190 DEG C, four district's temperature 170-
190 DEG C, five district's temperature 170-190 DEG C, six district's temperature 180-200 DEG C, seven district's temperature 170-200 DEG C, eight district's temperature 180-200,
Nine district's temperature 180-210 DEG C, ten district's temperature 180-210 DEG C, head temperature 180-220 DEG C；Screw speed is 200-500rpm.
A kind of weather-proof masterbatch of high-temperature polyester the most according to claim 6, it is characterised in that: the weatherable master batch prepared exists
It is vacuum dried at 60-80 DEG C 3-5 hour, at 80-120 DEG C, then after pre-crystallized 2-5 hour, obtains finished product.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111675885A (en) * | 2020-06-22 | 2020-09-18 | 宿迁联宏新材料有限公司 | PET (polyethylene terephthalate) light aging resistant and weather resistant master batch and preparation method thereof |
| CN112341770A (en) * | 2020-11-17 | 2021-02-09 | 银金达(上海)新材料有限公司 | Environment-friendly high-flame-retardant PETG sheet and preparation method thereof |
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| CN101733925A (en) * | 2009-10-26 | 2010-06-16 | 申达集团有限公司 | Method for preparing polyester film for photovoltaic cell backplane |
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| CN101733925A (en) * | 2009-10-26 | 2010-06-16 | 申达集团有限公司 | Method for preparing polyester film for photovoltaic cell backplane |
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| CN111675885A (en) * | 2020-06-22 | 2020-09-18 | 宿迁联宏新材料有限公司 | PET (polyethylene terephthalate) light aging resistant and weather resistant master batch and preparation method thereof |
| CN112341770A (en) * | 2020-11-17 | 2021-02-09 | 银金达(上海)新材料有限公司 | Environment-friendly high-flame-retardant PETG sheet and preparation method thereof |
| CN112341770B (en) * | 2020-11-17 | 2022-06-28 | 银金达(上海)新材料有限公司 | Environment-friendly high-flame-retardant PETG sheet and preparation method thereof |
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Application publication date: 20161026 |