CN107383825A - High glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material and application - Google Patents
High glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material and application Download PDFInfo
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- CN107383825A CN107383825A CN201710589822.1A CN201710589822A CN107383825A CN 107383825 A CN107383825 A CN 107383825A CN 201710589822 A CN201710589822 A CN 201710589822A CN 107383825 A CN107383825 A CN 107383825A
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92085—Velocity
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92123—Diameter or circumference
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92142—Length
-
- 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
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/08—Copolymers of styrene
- C08J2425/12—Copolymers of styrene with unsaturated nitriles
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2310/00—Masterbatches
Abstract
The invention discloses a kind of high glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material and application, the reinforcing material, include the component of following parts by weight：50 90 parts of polycarbonate resin, 1 20 parts of styrene acrylonitrile copolymer, 1 20 parts of glass fibre, 0.1 20 parts of fire retardant, 1 10 parts of compatilizer；Available for preparing computer frame, household appliances shell etc.；The product that there is surface to exempt from spraying can be obtained.The high glaze of the present invention, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, by adding styrene acrylonitrile copolymer, glass fibre, organic silicon, Sulfonates, phosphate ester flame retardants wherein, product anti-flammability, mobility and surface-brightening can be effectively improved.
Description
Technical field
The present invention relates to a kind of Polycarbonate flame retardant reinforcing material and application.
Background technology
In 3C electronics industry, household electric appliances, plastic-injection product is because its processing procedure is simple and convenient to operate, light quality, makes
Increasingly favored with the advantages that scope is wide, raw material easily obtains, cost is relatively low.
With widely using for plastic cement, people propose higher and higher requirement to product.High intensity, high-performance, high table
Face presentation quality, lightweight, environment-friendly plastic material are increasingly got the favour of people.Exempt from sprayed on material by directly noting
Modeling, special pearly-lustre, metallic luster are realized, glitters, dazzle beautiful outward appearance, process is simple, pollution-free, and product can reclaim completely,
Environmental pressure is reduced, meets " green ", the market trend of " colorful attractive in appearance ".There are wide market prospects, and it is extensive
Used by household electrical appliance, Automobile Enterprises.
Light material requires the thickness more and more thinner of product, while has high intensity, high-performance.But general thin-walled production
Product, particularly glass fiber reinforced materials, injection moulding speed needed for injection molding and injection pressure require very high, and the surface of product is just very
It is coarse.And current material, the technology as disclosed in CN101074314 patents, often mobile performance, brightness can not meet to want
Ask, formed product difficulty, the deficiencies of surface floating fiber, glossiness are low, low intensity be present, it is impossible to while meet thin-walled, high intensity, excellent
Different appearance requirement.
The content of the invention
It is an object of the invention to provide a kind of high glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material and application,
The defects of to overcome prior art to exist.
Described high glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it includes the group of following parts by weight
Point：
Preferably, described high glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it includes following weight
The component of number：
The weight average molecular weight of described polycarbonate resin is 20000~40000g/mol；
The makrolon, it is 300 DEG C in environment temperature, when load is 1.2Kg, melt index 5-30g/10min；
The glass fibre is that alkali-free is chopped circular glass fiber, and alkali-free is chopped flat glass fiber, glass microballoon, glass
Microballon particle diameter is 10~40 μm；
The SAN, it is 220 DEG C in environment temperature, when load is 10Kg, melt index>10g/
10min；
The fire retardant is potassium phenylsulphonyl benzene sulfonate (KSS), perfluorobutyl potassium sulfonate, 2,4,5- trichlorine benzene sulfonic acid sodium salts
(STB) sulfonate salt flame such as；The phosphorus flame retardants such as phosphate, phosphinate, phosphonate ester；The organosilicons such as organic sesqui siloxane
One or more compound flame retardants in fire retardant；
The compatilizer is styrene-grafted maleic anhydride, styrene-acrylonitrile graft GMA,
At least one of compatilizers such as ABS grafted maleic anhydrides；
Preferably, described high glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, in addition to 1-20 parts
Other auxiliary agents；
Preferably, 4~5 parts of other auxiliary agents；
Other described auxiliary agents, including anti-dripping agent, toughener, lubricant, antioxidant, ultra-violet absorber and color help
One or more of agent etc.；
Described anti-dripping agent includes polytetrafluoroethylene (PTFE).Such as the FAH5601 of Daikin Chemical Manufacture.
Poly- (Butadiene/Styrene) that described toughener includes crosslinking is used as core, the polymethyl methacrylate of grafting
As the MBS toughener of shell, high glue powder, organosilicon/acrylic acid series or all acrylic ester class.Such as the beautiful sun production of Mitsubishi is organic
Silicon class toughener S-2001.
Lubricant includes pentaerythritol stearate, montanin wax, organo-silicon compound or fatty acid amide.Such as Fine
The PETS of Organics productions：G748.；
Antioxidant includes Hinered phenols, phosphorous acid esters or thio esters；Such as the 1010,168 of BASF productions；
Ultra-violet absorber includes benzophenone or benzotriazole；Such as the 234 of BASF AG's production；
Color auxiliary agent includes color masterbatch or toner etc.；Carrier-free, PC carriers, the Masterbatch of AS carriers or suitable PC can be used to use
Toner.Such as the 3807 of Cabot production.
High glaze of the present invention, exempt from spraying, the preparation method of thin-walled property Polycarbonate flame retardant reinforcing material, including such as
Lower step：Polycarbonate resin, SAN, fire retardant, compatilizer, other auxiliary agents are stirred using high mixer
Mix 3~5min；Said mixture is added in double screw extruder hopper, glass fibre is from side spout blanking, through superfusion
Melt blending, extruding pelletization is into composite.Wherein, double-screw extruder screw draw ratio is 40:1；Each area's processing temperature of screw rod
Setting is respectively：One 100-120 DEG C of area's temperature, two 240-260 DEG C of area's temperature, three 260-270 DEG C of area's temperature, four area's temperature
260-270 DEG C, five 250-260 DEG C of area's temperature, 260-270 DEG C of the area's temperature of six 250-260 DEG C of area's temperature seven, eight area temperature 260-
270 DEG C, nine 260-270 DEG C of area's temperature, die head temperature is 260-270 DEG C；Engine speed 400-450rpm.
High glaze of the present invention, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, available for preparing computer side
Frame, household appliances shell etc.；The product that there is surface to exempt from spraying can be obtained.
After using described high glaze, exempting from spraying, the shaping of thin-walled property Polycarbonate flame retardant reinforcing material
The product of acquisition, the thickness of the thinner wall section of the product is 0.6-1.2mm.
Compared to prior art, high glaze of the invention, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, pass through
SAN, glass fibre, organic silicon, Sulfonates, phosphate ester flame retardants are added wherein, can be with
It is effective to improve product anti-flammability, mobility and surface-brightening.
Embodiment
Polycarbonate resin used is 300 DEG C in environment temperature in embodiment 1,2 and comparative example 1, load 1.2Kg
When, melt index 30g/10min, produced and provided by LG company, trade mark 1300-30.
Polycarbonate resin used is 300 DEG C in environment temperature in embodiment 3,4 and comparative example 2, load 1.2Kg
When, melt index 10g/10min, provided by the production of Cohan wound company, trade mark Makrolon_2800.
Fire retardant used compounds for perfluorobutyl potassium sulfonate and organic silicon fibre retardant in embodiment 1,2 and comparative example 1
Form；
In embodiment 3,4 and comparative example 2 fire retardant used for 1,3- phenylenes phosphoric acid (2,6- tolyl) four esters, by
The big eight companies production of Japan provides, trade mark PX-200.
SAN used is 220 DEG C in environment temperature in embodiment, when load is 10 Kg, melting
Index is 30g/10min, is produced and provided by Tai Hua companies, trade mark NF2200.
The glass fibre used in embodiment and comparative example is that alkali-free is chopped circular glass fiber, 13 μm of filament diameter, by
The production of Mount Taishan glass company provides, trade mark ECS13-3.0-T442.
The compatilizer used in embodiment and comparative example is the copolymer of styrene and maleic anhydride, and MA contents are left 18%
The right side, produced and provided by POLYSCOPE companies, trade mark SZ23110.
In embodiment and comparative example, other auxiliary agents used is anti-dripping agents：Big aurification work FAH5601；Antioxygen
Agent：BASF 1010、168；Toughener：The beautiful positive S-2001 of Mitsubishi；Color auxiliary agent：PC carriers black masterbatch 3807；
Embodiment 1
Other described auxiliary agents are 0.5 part of anti-dripping agent, 1 part, BASF 1010,168, PC carrier black masterbatch of antioxidant
3807 1 parts；2 parts of toughener.
Weigh each component of corresponding weight；Then, by polycarbonate resin, SAN, fire retardant,
Compatilizer, other auxiliary agents stir 3~5min using high mixer；Said mixture is added in double screw extruder hopper, glass
Glass fiber is from side spout blanking, and by melt blending, extruding pelletization is into composite.Wherein, double-screw extruder screw is grown
Footpath ratio is 40:1；Each area's processing temperature of screw rod, which is set, is respectively：One 100-120 DEG C of area's temperature, two 240-260 DEG C of area's temperature, three
260-270 DEG C of area's temperature, four 260-270 DEG C of area's temperature, five 250-260 DEG C of area's temperature, the area's temperature of six 250-260 DEG C of area's temperature seven
260-270 DEG C, eight 260-270 DEG C of area's temperature, nine 260-270 DEG C of area's temperature, die head temperature is 260-270 DEG C；Engine speed
400-450rpm。
Embodiment 2
Other auxiliary agents are 0.5 part of anti-dripping agent, 1 part, BASF 1010,168 of antioxidant, 3,807 1 parts of PC carriers black masterbatch；
2 parts of toughener.
Preparation method, with embodiment 1.
Embodiment 3
Other auxiliary agents are 0.5 part of anti-dripping agent, 0.5 part, BASF 1010,168 of antioxidant, PC carriers black masterbatch 3,807 1
Part；2 parts of toughener.
Preparation method, with embodiment 1.
Embodiment 4
Other auxiliary agents are 0.5 part of anti-dripping agent, 0.5 part, BASF 1010,168 of antioxidant, PC carriers black masterbatch 3,807 1
Part；3 parts of toughener.
Preparation method, with embodiment 1.
Comparative example 1
Other auxiliary agents are 0.5 part of anti-dripping agent, 1 part, BASF 1010,168 of antioxidant, 3,807 1 parts of PC carriers black masterbatch；
2 parts of toughener.
Preparation method, with embodiment 1.
Comparative example 2
Other auxiliary agents are 0.5 part of anti-dripping agent, 0.5 part, BASF 1010,168 of antioxidant, PC carriers black masterbatch 3,807 1
Part；2 parts of toughener.
Preparation method, with embodiment 1.
After various embodiments above and comparative example melting extrusion are granulated, the then injection molding GB standard testings on injection machine
Batten, by the mechanical performance of GB standard testing resulting materials, and according to UL94 standard testing fire resistances.Weigh mobility and table
The panel size of planar condition is：100mm × 100mm × 1mm, surface are polished to minute surface, and in identical injection temperature, injection pressure
Power, injection moulding speed, mould temperature are carried out under the conditions of waiting, and test result is as shown in table 1：
Table 1：The test result of embodiment and comparative example
Wherein, glossiness can be detected using GB 8807-88 standards；
From table 1, with the addition of SAN, the mobility of material becomes larger, planar surface
Floating fibre tail off, glossiness becomes big.When having used phosphate flame retardant, because addition is big, have while anti-flammability is provided
There is plasticization, therefore mobility is higher, planar surface is bigger without floating fibre, glossiness；
In addition, the present invention also provides a kind of product, the product is high flowing, the high bright poly- carbon of glass fiber reinforced flame retardant
Caused product after acid ester resin composition molding, the thickness of the thinner wall section (the most thin part of product) of the product is 0.6-
1.2mm, preferably 0.8-1.0mm, are particularly preferred that 1.0-1.2mm.
Claims (11)
1. high glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it is characterised in that including following parts by weight
Component：
2. high glaze according to claim 1, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it is characterised in that
Include the component of following parts by weight：
3. high glaze according to claim 1 or 2, exempting from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, its feature exists
In the weight average molecular weight of described polycarbonate resin is 20000~40000g/mol；The makrolon, in environment temperature
For 300 DEG C, when load is 1.2Kg, melt index 5-30g/10min；
The SAN, it is 220 DEG C in environment temperature, when load is 10Kg, melt index>10g/
10min。
4. high glaze according to claim 1 or 2, exempting from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, its feature exists
In, the fire retardant be potassium phenylsulphonyl benzene sulfonate (KSS), perfluorobutyl potassium sulfonate, 2,4,5- trichlorines benzene sulfonic acid sodium salt (STB) etc.
Sulfonate salt flame；One or more in phosphate, phosphinate, phosphonate ester, organic sesqui siloxane.
5. high glaze according to claim 1 or 2, exempting from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, its feature exists
It is that alkali-free is chopped circular glass fiber in, the glass fibre, alkali-free is chopped flat glass fiber, glass microballoon, glass microballoon
Particle diameter is 10~40 μm.
6. high glaze according to claim 1 or 2, exempting from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, its feature exists
It is styrene-grafted maleic anhydride in, the compatilizer, styrene-acrylonitrile graft GMA, ABS connects
At least one of branch maleic anhydride.
7. high glaze according to claim 3, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it is characterised in that
The compatilizer is styrene-grafted maleic anhydride, styrene-acrylonitrile graft GMA, ABS grafting
At least one of maleic anhydride.
8. high glaze according to claim 7, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it is characterised in that
Also include other auxiliary agents of 1-20 parts.
9. high glaze according to claim 8, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material, it is characterised in that
One in other described auxiliary agents, including anti-dripping agent, toughener, lubricant, antioxidant, ultra-violet absorber and color auxiliary agent
More than kind.
10. high glaze described in any one of claim 1~9, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material should
With, it is characterised in that for preparing computer frame, household appliances shell.
11. using the high glaze described in any one of claim 1~9, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material system
Standby product, the thickness of thinner wall section is 0.6-1.2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710589822.1A CN107383825A (en) | 2017-07-19 | 2017-07-19 | High glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material and application |
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| CN201710589822.1A CN107383825A (en) | 2017-07-19 | 2017-07-19 | High glaze, exempt from spraying, thin-walled property Polycarbonate flame retardant reinforcing material and application |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272618A (en) * | 2019-06-27 | 2019-09-24 | 金旸（厦门）新材料科技有限公司 | A kind of high fluidity environmental-friendly fire-retardant PC material and preparation method thereof |
| CN111087778A (en) * | 2018-10-23 | 2020-05-01 | 中国石油化工股份有限公司 | Heat-conducting polycarbonate composition with improved flow property, preparation method and application |
| CN112430388A (en) * | 2019-08-26 | 2021-03-02 | 汉达精密电子(昆山)有限公司 | High-performance halogen-free flame-retardant PC/GF composite material and product thereof |
| CN112679930A (en) * | 2020-11-18 | 2021-04-20 | 奥普家居股份有限公司 | Spraying-free PC material for high-temperature and high-humidity resistant bathroom heater mask |
| CN114031916A (en) * | 2021-11-08 | 2022-02-11 | 金发科技股份有限公司 | Thin-wall flame-retardant low-shrinkage polycarbonate material and preparation method and application thereof |
| CN114479407A (en) * | 2022-01-04 | 2022-05-13 | 广东中塑新材料有限公司 | Thin-wall flame-retardant polycarbonate material and preparation method thereof |
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Application publication date: 20171124 |