CN109777065A - A kind of environmental-friendly polycarbonate/polyester composite material and preparation method and purposes - Google Patents
A kind of environmental-friendly polycarbonate/polyester composite material and preparation method and purposes Download PDFInfo
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Abstract
The present invention provides a kind of environmental-friendly polycarbonate/polyester composite material and preparation method and purposes.The polycarbonate/polyester composite material includes: polyester: 30-80 parts by weight；Polycarbonate: 20-60 parts by weight；Glass fibre: 5-30 parts by weight；Ester exchange inhibitor: 1-5 parts by weight；Toughener: 1-5 parts by weight；Compatilizer: 0.5-10 parts by weight；Fire retardant: 1-20 parts by weight；Antioxidant: 0.1-1 parts by weight；Anti- UV agent: 0.1-1 parts by weight；Lubricant: 0.1-1 parts by weight；Coupling agent: 0.1-0.5 parts by weight.The environmental-friendly polycarbonate/polyester composite material of the present invention has excellent mechanical property, flame retardant property and ageing-resistant performance, and preparation method simple process effectively reduces its production cost.
Description
Technical field
The present invention relates to a kind of environmental-friendly polycarbonate (PC)/polyester composite and its preparation method and application, with
And driven well room is controlled by intelligent irrigation prepared by the composite material.
Background technique
Polycarbonate is a kind of noncrystalline high molecular material, has excellent impact resistance, dimensional stability, thermostabilization
Property, high gloss and excellent mechanical property, electrical insulating property and flame-retarding characteristic.But its molecular rigidity and steric hindrance are big, melt
Melt that temperature is high, processing and forming is difficult, more importantly its product residual stress is big, Yi Fasheng stress cracking, solvent resistance compared with
Difference, it is furthermore at high cost the disadvantages of limit the application of polycarbonate in practice.
Polyester material, such as polybutylene terephthalate (PBT) (PBT), polyethylene terephthalate (PET) and poly- (right
Benzene dicarboxylic acid butanediol -co- adipic acid butanediol) ester (PBAT) etc., have very excellent chemical reagent resistance, heat resistance and
Excellent mechanical strength, electrical insulation characteristics and thermal stability.But the disadvantages such as its shrink of product rate is big, notch impact strength is low.
The advantages of material alloysization can learn from other's strong points to offset one's weaknesses, and can give full play to each component.Therefore PC/ polyester alloy material
With the excellent characteristics, especially ageing-resistant performance such as excellent molding processibility, preferable impact resistance, chemical-resistant resistance, phase
For traditional PC/ABS alloy material, PC/ polyester alloy material has exclusive advantage in terms of aging.Polyester can improve
Mobility, stress cracking and the solvent resistance of PC, while the shortcomings that the easy buckling deformation of polyester material product can also be improved.But PC
Ester exchange reaction can occur in process is blended with polyester, influence the performance of alloy material, generally require addition transesterification
Inhibitor；On the other hand, the compatibility of PC and polyester is bad, and general compatible toughening agents of adding can just improve the phase of alloy material
Capacitive and comprehensive mechanical property.In order to expand the application field of PC/ polyester, adds light stabilizer and fire retardant can be applied to family
Outer arts, as national grid control cabinet and agriculture intelligent irrigation control driven well room.And the research of this respect compare it is less,
Present patent application is capable of providing a reference of the technological break-through.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of polycarbonate/polyester composite material and its
Preparation method, to solve existing polycarbonate/polyester composite material, there are the performances such as mechanical strength, resistant to chemical etching, ageing-resistant
Undesirable technical problem.Composite material of the invention is environmentally friendly.In particular, polycarbonate/polyester of the invention
In composite material, environmental-friendly PBAT polyester material is introduced, with excellent flexibility and environmental-friendly performance.
It is further an object that a kind of intelligent irrigation control driven well room is provided, to solve existing glass reinforced plastic and casting
Iron material, which exists, not environmentally causes environmental pollution, not recyclable, more undesirable than the performances such as cumbersome intolerant to burn into and lead to intelligence
The not high technical problem of irrigation control driven well room safety.
In order to achieve the above-mentioned object of the invention, one aspect of the present invention provides a kind of polycarbonate/polyester composite material, institute
Stating polycarbonate/polyester composite material includes:
Polyester: 30-80 parts by weight, preferably 30-60 parts by weight；
Polycarbonate: 20-60 parts by weight, preferably 30-60 parts by weight；
Glass fibre: 5-30 parts by weight, preferably 20-30 parts by weight；
Ester exchange inhibitor: 1-5 parts by weight, preferably 2-5 parts by weight；
Toughener: 1-5 parts by weight, preferably 2-5 parts by weight；
Compatilizer: 0.5-10 parts by weight, preferably 2-5 parts by weight；
Fire retardant: 1-20 parts by weight, preferably 15-20 parts by weight；
Antioxidant: 0.1-1 parts by weight, preferably 0.1-0.15 parts by weight；
Anti- UV agent: 0.1-1 parts by weight, preferably 0.1-0.3 parts by weight；
Lubricant: 0.1-1 parts by weight, preferably 0.1-0.2 parts by weight；
Coupling agent: 0.1-0.5 parts by weight, preferably 0.1-0.15 parts by weight.
In polycarbonate/polyester composite material of the invention, the polyester can for aromatic polyester, aliphatic polyester,
Aliphatic-aromatic copolyester etc. is preferably selected from polybutylene terephthalate (PBT) (PBT), polyethylene terephthalate
(PET), poly- (terephthalic acid (TPA) butanediol -co- adipic acid butanediol) ester (PBAT) and poly- (terephthalic acid (TPA) butanediol -co- fourth
Diacid butanediol) in ester (PBST), more preferably PBAT.Preferably, the melt flow rate (MFR) of the polyester can be 5-50g/
10min, intrinsic viscosity can be 0.5-2.0dl/g, and relative molecular weight can be 7000-50000g/mol.
In polycarbonate/polyester composite material of the invention, it is preferable that the relative molecular weight of the polycarbonate can be
10000-30000g/mol.In polycarbonate/polyester composite material of the invention, it is preferable that the vitrifying of the polycarbonate
Transition temperature can be 140-150 DEG C.
In polycarbonate/polyester composite material of the invention, it is preferable that the glass fibre can be hydrolysis food-grade glass
Glass fiber, fibre diameter can be between 7-17 μm.
In polycarbonate/polyester composite material of the invention, the ester exchange inhibitor can be usually used in this field
Ester exchange inhibitor, be preferably selected from triphenyl phosphate, triphenyl phosphite, triethyl phosphate and trimethyl phosphate.
In polycarbonate/polyester composite material of the invention, it is preferable that the toughener can be usually used in this field
Toughener.For example, the toughener can be thermoplastic elastomer (TPE), it is more preferably selected from ethylene-methyl acrylate-methacrylic acid
In glycidyl ester copolymer and n-butyl acrylate-glycidyl ester copolymer.
In polycarbonate/polyester composite material of the invention, it is preferable that the fire retardant can be fire-retardant for environmental-friendly phosphorus nitrogen
Agent system is more preferably selected from the phosphor nitrogen composite combustion inhibitors such as melamine cyanurate, melamine polyphosphate, hypo-aluminum orthophosphate
In.
In polycarbonate/polyester composite material of the invention, the antioxidant can be antioxygen usually used in this field
Agent is preferably selected from one of hindered phenol and bi-ester of phosphite or a variety of, is more preferably selected from antioxidant 1010, antioxygen
One of agent 168, antioxidant 1098, antioxidant 1076 are a variety of.
In polycarbonate/polyester composite material of the invention, the anti-UV agent can be anti-UV usually used in this field
Agent is preferably selected from one of benzotriazole and triazine-based ultraviolet absorbent or a variety of, is more preferably selected from
One of UV234, UV326, UV329 and UV360 or a variety of.
In polycarbonate/polyester composite material of the invention, it is preferable that the lubricant can be amides and silicone and wax
Based compound, any one or more compound more preferably in ethylene bis stearamide, silicone powder and silicone master batch.
In polycarbonate/polyester composite material of the invention, it is preferable that the compatilizer can be usually used in this field
Compatilizer.For example, the compatilizer can be Graft Polyolefin, it is more preferably selected from Research of Grafting Malaic Anhydride Onto Polyethylene and poly- third
Any one or more compound in alkene grafted maleic anhydride etc..
In polycarbonate/polyester composite material of the invention, the coupling agent can be titanate esters or silane compound, preferably
In titanate coupling agent and silane coupling agent etc..
Another aspect of the present invention provides a kind of preparation method of above-mentioned polycarbonate/polyester composite material, including as follows
Step: 1) polycarbonate, polyester, glass fibre are put into high-speed mixer and are pre-mixed 1-3 minutes, it is mixed that coupling agent is then added
It closes 2-4 minutes, makes each component is fully dispersed uniformly to obtain mixed material A；
2) ester exchange inhibitor, toughener, compatilizer, composite flame-retardant agent, anti-UV agent, antioxidant and lubricant are put into height
It is mixed 3-5 minutes in fast mixing machine, each component is made to be uniformly dispersed to obtain mixed material B；
3) mixed material A in step 1) is added in the main feeding of double screw extruder, by the mixture in step 2)
Material B is added in the side feed material of double screw extruder, and the motor speed by controlling main feeding and side feed material adjusts nylon mixing
The material proportion of object and mixture of glass fibers, to obtain extruded material C,
Preferably, the processing technology of double screw extruder is as follows: being divided into seven from twin-screw extrusion owner's spout to head
A region, each area's melting temperature are as follows: 220-230 DEG C of an area, two 230-240 DEG C of areas, three 230-240 DEG C of areas, four area 240-250
DEG C, five 240-250 DEG C of areas, six 250-260 DEG C of areas, seven 260-270 DEG C of areas, meanwhile, double screw extruder is furnished with vacuum plant, with
Just the small molecule and impurity during extraction melting extrusion, controls vacuum degree in 1325Pa or less；
4) the extruded material C in step 3) in double screw extruder is drawn, crosses water, is sent after air-cooled to pelleter pelletizing and obtained
To pellet D；
5) after the pellet D that pelleter in step 4) obtains being put into drier drying, packaging, which vacuumizes, obtains the present invention
The polycarbonate/polyester composite material.
Preferably, the motor speed of the high-speed mixer in step 1) is greater than 2000r/min, and vacuum degree is less than in step 3)
1325Pa；The water content of product in step 5) is less than 0.1%.
According to another aspect of the present invention, a kind of intelligent irrigation control driven well room is provided, which controls machine
Well house is made of the polycarbonate/polyester composite material.
According to a further aspect of the invention, the purposes of above-mentioned polycarbonate/polyester composite material is provided, is especially used
In the purposes for preparing intelligent irrigation control driven well room.
Compared with prior art, the environmental-friendly polycarbonate/polyester composite material of the present invention is with polycarbonate and polyester
Base resin can assign the good mechanical property of alloy material and be especially especially using environmental-friendly PBAT as polyester material
Notch impact strength.Secondly, containing the maleic groups of high activity in the compatilizer, can with contain in base resin
Hydroxyl and carboxylic group occur chemical reaction form covalent bond, improve the interface compatibility of material, improve the thickness of two-phase interface
Degree and adhesion strength, to improve the comprehensive mechanical property of Integral alloy material, while can improve the anti-of makrolon material and answer
Power cracking and the sensibility to organic solvent.Third, the toughener can also increase indirectly base resin compatibility and
Toughness, to improve the notch impact strength of composite material.Anti- UV and composite flame-retardant agent is added in 4th, PC/ polyester composite,
It can be used for the fields such as outdoor or power distribution cabinet to avoid the anti-aging and flame retardant property of polycarbonate/polyester alloy material,
It can also be to avoid being chronically at caused electrostatic effect under dry environment.
Process route of the environmental-friendly PC/ polyester composite preparation method of the present invention by melt blending, each component
It mutually has an effect in the remelted extrusion process of raw material, to assign environmental-friendly polycarbonate/polyester composite material with upper
Excellent mechanical property, resistant to chemical etching, flame retardant property and the anti-aging property stated and the characteristics such as antistatic.Meanwhile the present invention
The preparation process route of offer is simple, and production cost is low, the advantages that being easy to control.
Intelligent irrigation of the present invention control driven well room due to using the environmental-friendly polycarbonate/polyester composite material of the present invention,
Compared with traditional glass steel and cast iron material, intelligent irrigation of the present invention control driven well room is resistant to chemical etching, it is highly-safe, durable,
Not polluting to environment can recycle, especially light-weight.
Specific embodiment
Combined with specific embodiments below to how to realize the present invention do further in detail, clear and complete explanation.It is listed
Embodiment is only described further the present invention, is not intended to limit the present invention.
Polycarbonate is purchased from Di Ren company, Japan；PBT and PET is purchased from Chinese Yizheng Fiber Optical plant；PBAT is purchased from Chinese Lanshan County village
River or BASF Corp. of Germany；Glass fibre is purchased from Chinese Mount Taishan glass fibre company, Chongqing Polycomp International Corporation and China
Megalith chemical company, other auxiliary agents are purchased from commercially available.Device therefor is the CTE-65 model device of Nanjing section grand companies market again.
Embodiment 1
Formula: 30 parts by weight of polycarbonate (PC), 30 weight of polybutylene terephthalate (PBT) (PBT) as polyester
Part, 20 parts by weight of glass fibre, as 2 parts by weight of triethyl phosphate of ester exchange inhibitor, the polyethylene as compatilizer is connect
Branch maleic anhydride (Shanghai Zhi Sheng company) 5 parts by weight, ethylene-methyl acrylate-Glycidyl methacrylate as toughener
Glycerol ester copolymer (purchased from French Arkema) 2 parts by weight, the melamine poly aluminium phosphate as fire retardant (purchase section's Lay
Benefactor department) 15 parts by weight, anti-0.3 parts by weight of UV agent (UV360), (1098) 0.15 parts by weight of antioxidant, coupling agent (KH570)
0.15 parts by weight, 0.2 parts by weight of silicone powder as lubricant.
Preparation method:
1) PC of formula ratio, polyester and toughener are put into high-speed mixer and are pre-mixed 1-3 minutes, formula is then added
The coupling agent mixing of amount 2-4 minutes keeps each component fully dispersed uniformly.
2) by the glass fibre of formula ratio, compatilizer, ester exchange inhibitor, fire retardant, anti-UV agent, antioxidant and lubricant
It is put into high-speed mixer and mixes 3-5 minutes, each component is made to be uniformly dispersed.
3) PC mixture material in step 1) is added in the main feeding of double screw extruder, by the glass in step 2)
Fibre blend material is added in the side feed material of double screw extruder, and the motor speed by controlling main feeding and side feed material can
To adjust the material proportion of nylon mixture and mixture of glass fibers.
The processing technology of double screw extruder is as follows: it is divided into seven regions from twin-screw extrusion owner spout to head,
Each area's melting temperature are as follows: 220-230 DEG C of an area, two 230-240 DEG C of areas, three 230-240 DEG C of areas, four 240-250 DEG C of areas, 5th area
240-250 DEG C, six 250-260 DEG C of areas, seven 260-270 DEG C of areas.Meanwhile double screw extruder is furnished with vacuum plant, to extract out
Small molecule and impurity during melting extrusion.General control vacuum degree is in 1325Pa.
4) extrudate in step 3) in double screw extruder is drawn, crosses water, is sent after air-cooled to pelleter pelletizing.
5) after the particle that pelleter in step 4) obtains being put into drier drying, packaging, which vacuumizes, finally to be made
Product.
Embodiment 2
Formula: 30 parts by weight of polycarbonate (PC), 30 weight of polyethylene terephthalate (PET) as polyester
Part, 20 parts by weight of glass fibre, as 2 parts by weight of triethyl phosphate of ester exchange inhibitor, the polyethylene as compatilizer is connect
Branch maleic anhydride (Shanghai Zhi Sheng company) 5 parts by weight, n-butyl acrylate-glycidyl ester copolymer as toughener
(French Arkema) 2 parts by weight, as 15 parts by weight of hypo-aluminum orthophosphate (purchasing Clariant Corporation) of fire retardant, anti-UV agent
(UV360) 0.3 parts by weight, (1098) 0.15 parts by weight of antioxidant, 0.15 parts by weight of coupling agent (KH570), lubricant (silicone
Powder) 0.2 parts by weight.
The preparation method is the same as that of Example 1.
Embodiment 3
Formula: 30 parts by weight of polycarbonate (PC), poly- (the terephthalic acid (TPA) butanediol -co- adipic acid fourth two as polyester
Alcohol) 30 parts by weight of ester (PBAT), 20 parts by weight of glass fibre, as 2 parts by weight of triethyl phosphate of ester exchange inhibitor, as
The Research of Grafting Malaic Anhydride Onto Polyethylene (Shanghai Zhi Sheng company) of compatilizer) 5 parts by weight, the n-butyl acrylate-as toughener
2 parts by weight of glycidyl ester copolymer (E.I.Du Pont Company), 15 weight of hypo-aluminum orthophosphate (purchasing Clariant Corporation) as fire retardant
Part, anti-0.3 parts by weight of UV agent (UV360), (1098) 0.15 parts by weight of antioxidant, 0.15 parts by weight of coupling agent (KH570), lubrication
0.2 parts by weight of agent (silicone powder).
The preparation method is the same as that of Example 1.
Comparative example 1
Formula: 30 parts by weight of polycarbonate (PC), 30 weight of polybutylene terephthalate (PBT) (PBT) as polyester
Part, 20 parts by weight of glass fibre, the Research of Grafting Malaic Anhydride Onto Polyethylene (Shanghai Zhi Sheng company) as compatilizer) 5 parts by weight, make
For ethylene-methyl acrylate-glyceryl methacrylate copolymer (purchasing French Arkema) 2 weight of toughener
Part, as 15 parts by weight of melamine poly aluminium phosphate (purchasing Clariant Corporation) of fire retardant, anti-0.3 weight of UV agent (UV360)
Part, (1098) 0.15 parts by weight of antioxidant, 0.15 parts by weight of coupling agent (KH570), 0.2 parts by weight of lubricant (silicone powder).
The preparation method is the same as that of Example 1.
Comparative example 2
Formula: 30 parts by weight of polycarbonate (PC), 30 weight of polybutylene terephthalate (PBT) (PBT) as polyester
Part, 20 parts by weight of glass fibre, as 2 parts by weight of agent triethyl phosphate that transesterification inhibits, compatilizer (polycthylene grafted Malaysia
Acid anhydrides (Shanghai Zhi Sheng company)) 5 parts by weight, n-butyl acrylate-glycidyl ester copolymer (Du Pont's public affairs as toughener
Department) 2 parts by weight, as 15 parts by weight of hypo-aluminum orthophosphate (purchasing Clariant Corporation) of fire retardant, anti-0.3 weight of UV agent (UV360)
Part, (1098) 0.15 parts by weight of antioxidant, 0.15 parts by weight of coupling agent (KH570), 0.2 parts by weight of lubricant (silicone powder).
The preparation method is the same as that of Example 1.
Above embodiments and the obtained composition of comparative example are tested, testing standard, test parameter and result
As shown in the table.
Table 1
According to the result of table 1, environmental-friendly PC/ polyester composite according to the present invention due to ester exchange inhibitor and
There is excellent mechanical property especially toughness, that is, notch impact strength, higher ageing-resistant performance under the premise of PBAT is existing,
Preferable V0 grades of flame retardant property, surface resistivity reduce, furthermore product price relative moderate, have been fully achieved or more than foreign countries
The requirement of similar product can substitute import completely.It is able to satisfy the requirement of intelligent irrigation control driven well room development.
Claims (9)
1. a kind of polycarbonate/polyester composite material, the polycarbonate/polyester composite material include:
Polyester: 30-80 parts by weight, preferably 30-60 parts by weight；
Polycarbonate: 20-60 parts by weight, preferably 30-60 parts by weight；
Glass fibre: 5-30 parts by weight, preferably 20-30 parts by weight；
Ester exchange inhibitor: 1-5 parts by weight, preferably 2-5 parts by weight；
Toughener: 1-5 parts by weight, preferably 2-5 parts by weight；
Compatilizer: 0.5-10 parts by weight, preferably 2-5 parts by weight；
Fire retardant: 1-20 parts by weight, preferably 15-20 parts by weight；
Antioxidant: 0.1-1 parts by weight, preferably 0.1-0.15 parts by weight；
Anti- UV agent: 0.1-1 parts by weight, preferably 0.1-0.3 parts by weight；
Lubricant: 0.1-1 parts by weight, preferably 0.1-0.2 parts by weight；
Coupling agent: 0.1-0.5 parts by weight, preferably 0.1-0.15 parts by weight.
2. polycarbonate/polyester composite material according to claim 1, in which:
The polyester is more preferably selected from poly- to benzene in aromatic polyester, aliphatic polyester and aliphatic-aromatic copolyester
Dioctyl phthalate butanediol ester (PBT), polyethylene terephthalate (PET), poly- (terephthalic acid (TPA) butanediol -co- adipic acid fourth
Glycol) in ester (PBAT) and poly- (terephthalic acid (TPA) butanediol -co- succinic acid butanediol) ester (PBST), it is most preferably poly- (to benzene
Dioctyl phthalate butanediol -co- adipic acid butanediol) ester；And/or the melt flow rate (MFR) of the polyester is 5-50g/10min,
Intrinsic viscosity is 0.5-2.0dl/g, relative molecular weight 7000-50000g/mol.
3. polycarbonate/polyester composite material according to claim 1 or 2, wherein the average molecular of the polycarbonate
Amount is 10000-30000g/mol, and/or, the glass transition temperature of the polycarbonate is 140-150 DEG C.
4. polycarbonate/polyester composite material according to claim 1 or 2, in which:
The glass fibre is hydrolysis food level fiberglass, and fibre diameter is preferably between 7-17 μm；And/or
The ester exchange inhibitor is in triphenyl phosphate, triphenyl phosphite, triethyl phosphate and trimethyl phosphate；With/
Or,
The toughener is thermoplastic elastomer (TPE), is preferably selected from ethylene-methyl acrylate-glyceryl methacrylate copolymerization
In object and n-butyl acrylate-glycidyl ester copolymer；And/or
The fire retardant is environmental-friendly phosphor nitrogen combustion inhibitor system, is preferably selected from the poly- phosphorus of melamine cyanurate, melamine
In the phosphor nitrogen composite combustion inhibitors such as hydrochlorate, hypo-aluminum orthophosphate；And/or
The antioxidant is more preferably to be selected from antioxidant selected from one of hindered phenol and bi-ester of phosphite or a variety of
1010, one of irgasfos 168, antioxidant 1098 and antioxidant 1076 or a variety of；And/or
The anti-UV agent is more preferably to select selected from one of benzotriazole and triazine-based ultraviolet absorbent or a variety of
From one of UV234, UV326, UV329 and UV360 or a variety of；And/or
The lubricant is amides and silicone and wax based compound, is preferably selected from ethylene bis stearamide, silicone powder and silicon
Any one or more compound in ketone master batch；And/or
The compatilizer is Graft Polyolefin, is preferably selected from Research of Grafting Malaic Anhydride Onto Polyethylene and polypropylene grafted maleic anhydride
In any one or more compound；And/or
The coupling agent is titanate esters or silane compound, is preferably selected from titanate coupling agent and silane coupling agent.
5. a kind of method for preparing polycarbonate/polyester composite material described in claim 1, includes the following steps:
1) polycarbonate, polyester, glass fibre are put into high-speed mixer and are pre-mixed 1-3 minutes, it is mixed that coupling agent is then added
It closes 2-4 minutes, makes each component is fully dispersed uniformly to obtain mixed material A；
2) ester exchange inhibitor, toughener, compatilizer, composite flame-retardant agent, anti-UV agent, antioxidant and lubricant high speed is put into mix
It is mixed 3-5 minutes in conjunction machine, each component is made to be uniformly dispersed to obtain mixed material B；
3) mixed material A in step 1) is added in the main feeding of double screw extruder, the mixed material B in step 2) is added
Enter into the side feed material of double screw extruder, the motor speed by controlling main feeding and side feed material adjusts nylon mixture and glass
The material proportion of glass fibre blend, to obtain extruded material C,
4) the extruded material C in step 3) in double screw extruder is drawn, crosses water, is sent after air-cooled to pelleter pelletizing and obtain grain
Expect D；
5) by the pellet D that pelleter in step 4) obtains be put into drier it is dry after, packaging vacuumize obtain it is of the present invention
Polycarbonate/polyester composite material.
6. according to the method described in claim 5, wherein, in step 3), the processing technology of double screw extruder is as follows: from double spiral shells
Bar squeezes out owner's spout and is divided into seven regions, each area's melting temperature to head are as follows: 220-230 DEG C of an area, two area 230-240
DEG C, three 230-240 DEG C of areas, four 240-250 DEG C of areas, five 240-250 DEG C of areas, six 250-260 DEG C of areas, seven 260-270 DEG C of areas, together
When, double screw extruder is furnished with vacuum plant, and to extract the small molecule and impurity during melting extrusion out, control vacuum degree exists
1325Pa or less.
7. according to the method described in claim 5, wherein:
The motor speed of high-speed mixer in step 1) is greater than 2000r/min；With or,
Vacuum degree is less than 1325Pa in step 3)；With or,
The water content of product in step 5) is less than 0.1%.
8. a kind of intelligent irrigation controls driven well room, which controls driven well room by described in any one of Claims 1-4
Polycarbonate/polyester composite material is made.
9. the purposes of polycarbonate/polyester composite material described in any one of Claims 1-4, is especially used to prepare intelligence
The purposes of energy irrigation control driven well room.
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| CN114507431A (en) * | 2020-10-26 | 2022-05-17 | 中国石油化工股份有限公司 | Low-printing-temperature polycarbonate modified material for 3D printing, preparation method thereof and printing wire material |
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| CN113563710B (en) * | 2021-09-22 | 2021-12-21 | 北京能之光科技有限公司 | Method for preparing polycarbonate with reduced internal stress |
| CN113831715A (en) * | 2021-09-28 | 2021-12-24 | 上海金发科技发展有限公司 | Polycarbonate composite material and preparation method and application thereof |
| CN113861653A (en) * | 2021-09-28 | 2021-12-31 | 上海金发科技发展有限公司 | Flame-retardant polycarbonate composite material and preparation method and application thereof |
| CN113861654A (en) * | 2021-09-28 | 2021-12-31 | 上海金发科技发展有限公司 | Glass fiber reinforced polycarbonate composite material and preparation method and application thereof |
| CN113861653B (en) * | 2021-09-28 | 2023-09-12 | 上海金发科技发展有限公司 | Flame-retardant polycarbonate composite material and preparation method and application thereof |
| CN114231006A (en) * | 2021-12-17 | 2022-03-25 | 宁波瑞隆新材料科技有限公司 | Hydrolysis-resistant PC/PBT alloy material and preparation method thereof |
| CN115651377A (en) * | 2022-11-04 | 2023-01-31 | 青岛国恩科技股份有限公司 | Halogen-free flame-retardant high-strength PC/PBT alloy material and preparation method thereof |
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