CN106317821A - Flame-retardant PC/ABS composite material with high hydrolysis resistance and preparation method thereof - Google Patents
Flame-retardant PC/ABS composite material with high hydrolysis resistance and preparation method thereof Download PDFInfo
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- CN106317821A CN106317821A CN201610682685.1A CN201610682685A CN106317821A CN 106317821 A CN106317821 A CN 106317821A CN 201610682685 A CN201610682685 A CN 201610682685A CN 106317821 A CN106317821 A CN 106317821A
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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
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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
- C08L2201/02—Flame or fire retardant/resistant
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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
The invention discloses a flame-retardant PC/ABS composite material with high hydrolysis resistance and a preparation method thereof. The composite material comprises PC resin, ABS resin, a fire retardant, a flexibilizer, a chain extender and other auxiliaries. According to the composite material, the flexibilizer with specific number-average particle size and specific molecular structure and the chain extender with high epoxide equivalent are selected, the hydrolysis resistance of the flame-retardant PC/ABS composite material can be improved by optimizing the raw materials, and the flame-retardant PC/ABS composite material can have relatively ideal flame retardance and mechanical property after being subjected to long-time high temperature and high humidity treatment and is particularly suitable for the occasions with relatively high requirements for the use environments.
Description
Technical field
The present invention relates to a kind of PC/ABS composite and preparation method thereof, particularly relate to a kind of high hydrolytic resistance fire-retardant
PC/ABS composite and preparation method thereof, belongs to polymer composite and processing technique field thereof.
Background technology
PC/ABS composite is a kind of important engineering plastics, its thermostability not only increasing wherein ABS and stretching
Intensity, also reduces the melt viscosity of PC, improves the processing characteristics of composite.But owing to PC resin itself is containing to water-sensitive
The carbonic acid ester bond of sense, therefore there is the hydraulic performance decline such as mechanics that molecular chain rupture will be caused to cause PC in the water of trace；This is external
During synthesis ABS or toughener, the residue of similar catalyst also can aggravate the degraded of PC；Above-mentioned reason all can cause
PC/ABS composite is once after standing water and the common effect of high temperature, and mechanical property drastically declines.On the other hand, as resistance
Phosphate ester flame retardants conventional in combustion PC/ABS composite, also can hydrolyze under the common effect of high temperature and water, enter
One step reduces the mechanical property of material, and anti-flammability also can be greatly affected simultaneously.
For above-mentioned technical problem, prior art there is research worker use the relatively low ABS resin of rubber content and water-fast
Solve agent to improve, mechanical property and the anti-hydrolytic performance of composite can be improved to a certain extent, but owing to it uses
ABS resin in the content of rubber relatively low, it usually needs add the toughener of more amount and high molecular PC resin go to supply tough
Property, thus can reduce the mobility of material, and the impact of anti-hydrolytic performance is not explained by toughener.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of high hydrolytic resistance fire retardation PC/ABS
Composite and preparation method thereof, its preparation method is simple, operation safety, and the composite preparing gained has the resistance to of excellence
After process water-disintegrable, hot and humid, mechanical properties decrease is less, and flame retardant rating has almost no change, and is particularly well-suited to use environment
Require higher occasion.
The present invention is to solve that its technical problem be the technical scheme is that
A kind of high hydrolytic resistance fire retardation PC/ABS composite material, including following each component by weight:
More preferably:
It is known that selection materials, composition of raw materials, preparation technology are the three big key elements determining product quality, three is each other
Impact.Thus in order to advantage and the novelty of of the present invention gained high hydrolytic resistance fire retardation PC/ABS composite material are better described,
Selection materials, composition of raw materials and the preparation method of products obtained therefrom of the present invention will be described in detail below.
Described chain extender be epoxide equivalent be the styrene-acrylonitrile-methyl propenoic acid glycidyl of 0.1～10g/mol
Ester, the epoxide equivalent of this styrene-acrylonitrile-glycidyl methacrylate is preferably 5.0～9.0g/mol.
Described toughener is MBS, methyl methacrylate-acrylic acid
Copolymer, ethylene-methyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene-acrylate-methacrylic acid contracting
Water glyceride terpolymer, the ethylene-vinyl acetate copolymer of maleic anhydride functional, acrylic compounds toughener and propylene
At least one in acid-silicone rubber kinds toughener, and the number average bead diameter of this toughener is 50～700nm, number average bead diameter is preferably
130～300nm, the most preferably 140～260nm.Described toughener is preferably methyl methacrylate-butadiene-benzene
Ethylene copolymer, and the content 50～70wt.% of rubber that wherein butadiene is formed.The number average bead diameter of above-mentioned toughener is to pass through
Scanning electron microscope (SEM) measures, and number average bead diameter involved in the application is existed by Hitachi S3400 Scanning Electron microscope
Applying voltage 2.0KV, amplification is that 10000 times of particle diameters observing 300 particles measure, and following relates to several equal grain
Footpath all repeats no more.
Described PC resin is by interfacial polymerization, melt transesterification process, pyridine method, the open loop of cyclic carbonate compound
The solid phase ester-interchange method of polymerization or prepolymer prepares gained, and above-mentioned preparation method is this area conventional techniques, because of
This repeats no more.And this PC resin be by above-mentioned preparation method prepare the aromatic copolycarbonate of gained, fatty poly-ester carbonate,
At least one in aromatic-aliphatic Merlon and branching polycarbonate, preferably viscosity-average molecular weight are 13000-40000
Aromatic copolycarbonate, more preferably viscosity-average molecular weight is the aromatic copolycarbonate of 17000-24000.When fragrance adoption carbon
When the viscosity-average molecular weight of acid esters is in the range of 17000-24000, it has good mechanical performance and excellent mouldability.
Described ABS resin is to use mass polymerization, emulsion polymerization or bulk-suspension polymerization method to be prepared from, and
The viscosity-average molecular weight of this ABS resin be the content of rubber that in 8000～150000, and this ABS resin, butadiene is formed be 5～
30wt.%, the segment content that acrylonitrile is formed is 10～30wt.%, and the segment content that styrene is formed is 40～70wt.%.
Described fire retardant is at least one in nitrogenous flame ratardant, phosphonium flame retardant and metal organic sulfonate fire retardant,
It is preferably phosphonium flame retardant.Described phosphonium flame retardant is Triphenyl phosphate, lindol, tricresyl phosphate base diphenyl
Ester, tricresyl phosphate xylyl ester, tricresyl phosphate (2,4,6-trimethylphenyl) ester, tricresyl phosphate (2,4-di-tert-butyl-phenyl) ester, phosphorus
Acid three (2,6-di-tert-butyl-phenyl) ester, resorcinol double (diphenyl phoshate), hydroquinone double (diphenyl phoshate), double
Phenol A-double (diphenyl phoshate), resorcinol double (2,6-di-tert-butyl-phenyl phosphate ester) and double (the 2,6-diformazan of hydroquinone
Base phenyl phosphate ester) at least one, preferably bisphenol-A-bis-(diphenyl phoshate).
In the present invention, when above-mentioned PC resin, ABS resin, fire retardant, toughener and chain extender mix, it is also possible to root
Being properly added other auxiliary agent according to needs, other auxiliary agent described is selected from heat stabilizer, antioxidant, anti-dripping agent, light stabilizer, plasticising
At least one in agent, filler and coloring agent.
Suitably heat stabilizer includes: organic phosphites heat stabilizer, as triphenyl phosphite, tricresyl phosphite-(2,
6-3,5-dimethylphenyl) ester, tricresyl phosphite-nonyl phenylester, dimethylbenene phosphonate, trimethyl phosphate etc..
Suitably antioxidant includes: organic phosphite, alkylating monohydric phenol or polyhydric phenols, polyhydric phenols and diene
The butylation product of alkylation reaction product, paracresol or bicyclopentadiene, alkylating hydroquinones, hydroxylated sulfur generation
Diphenylether, alkylidene-bis-phenol, benzyl compounds, polyhydric alcohol esters etc..
Suitably anti-dripping agent is preferably fluorinated polyolefin, and this fluorinated polyolefin usually comprises the poly-of fluorine-containing ethylene unit
Compound or copolymer, and can example be specifically fluoride resin, TFE, tetrafluoroethylene/hexafluoropropylene copolymer
Resin, wherein preferred TFE.
Suitably light stabilizer is at least one of benzotriazole and benzophenone apoplexy due to endogenous wind.
Suitably plasticizer is phthalic acid ester.
Suitably filler includes the mineral fillers such as titanium dioxide, Pulvis Talci, Muscovitum, barium sulfate.
Suitably coloring agent includes various pigment, dyestuff.
The invention also discloses the preparation method of a kind of above-mentioned high hydrolytic resistance fire retardation PC/ABS composite material, this preparation side
Method comprises the steps:
(1) weigh 60～80 parts of PC resins, 10～15 parts of ABS resin, 8～15 parts of fire retardants, 2～5 parts of toughener, 0.5
～2.0 parts of chain extenders, 0.4～0.8 part of other auxiliary agent, and above-mentioned each component is put in mixer and carries out being blended until uniformly,
Obtain pre-composition；
(2) step (1) will carry out melting mixing, and extruding pelletization in gained pre-composition input double screw extruder,
To high hydrolytic resistance fire retardation PC/ABS composite material；Wherein the screw slenderness ratio of double screw extruder is 40～45:1, barrel temperature
Degree is 250～260 DEG C, and screw speed is 400～500rpm.
The method have the benefit that: compared to prior art, the application add in composition of raw materials have specific
Number average bead diameter and the toughener of specific molecular structure, this kind of toughener, can be by the hydrolysis of PC resin after by humid heat treatment
Control in relatively low level, simultaneously because in such toughener, the content of rubber part controls within the specific limits, even if therefore
PC/ABS composite, by humid heat treatment, still can be played good toughening effect by toughener；Furthermore, the application adds
Having added the chain extender of high epoxide equivalent, this kind of chain extender can be at the carbonic ester ester bond of PC resin or the phosphate ester ester bond of fire retardant
After occurring hydrolysis to generate living radical, the end group to PC resin blocks rapidly, prevents the further fall that active end group causes
Solve.Therefore the application reduces the hydrolysis of PC resin and phosphate ester flame retardants dramatically, the mechanical property of composite
Even if the most well being kept after experience high humidity height heat treatment with fire resistance, it is particularly well-suited to use environmental requirement to compare
High occasion.
Detailed description of the invention
Further illustrating the present invention below in conjunction with specific embodiment and comparative example, specific examples below is this
Invent preferably embodiment, but embodiments of the present invention are not limited by following embodiment, under being not limited to especially
State the model of each component raw material used in specific embodiment.
The selection of each component raw material used:
The PC S-2000F (Mitsubishi) that PC resin selects viscosity-average molecular weight to be 25000.ABS resin selects polymerisation in bulk
Method prepares the ABS 8391 (Gaoqiao Petrochemical Company) of gained.PhireGuard BDP (refined gram of Jiangsu) selected by fire retardant.Toughener is selected
M-732 (Japan's clock deep pool chemistry).MBS M-701 (Japan Zhong Yuan selected by other toughener
Chemistry).SAG-008 (Nantong Zhi Sheng company) selected by chain extender.Antioxidant selection AO1076, i.e. β in other auxiliary agents-(3,
5-di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester (CAS NO.: (2082-79-3))；In other auxiliary agents anti-
The agent that falls is selected30N PTFE(DuPont)。
According to the specific embodiment 1 described in table 1～5 and comparative example 1～2 formula consumption weigh respectively PC resin,
ABS resin, fire retardant, toughener, chain extender and other auxiliary agents, and will above-mentioned each component put in mixer carry out being blended until
Uniformly, pre-composition is obtained；Then gained pre-composition is put in double screw extruder and carry out melting mixing, and extruding pelletization,
To high hydrolytic resistance fire retardation PC/ABS composite material；Wherein the screw slenderness ratio of double screw extruder is 40:1, and barrel temperature is
250～260 DEG C, screw speed is 400～500rpm.
Table 1 embodiment 1～5 and each amounts of components of comparative example 1～2 (unit: kg)
The PC/ABS composite preparing gained in above-mentioned specific embodiment 1-5 and comparative example 1-2 is being carried out Gao Regao
Anti-flammability, melt flow rate (MFR) and the mensuration of notched Chalpy impact intensity, wherein high heat and humidity is carried out respectively before and after wet process
Treatment conditions are water and heat is jointly processed by experiment condition, particularly as follows: 85 DEG C, process 300h under 85% humidity.Anti-flammability, melt
Test institute's reference standard of flow rate and notched Chalpy impact intensity or method are as described below, and test result sees in table 2
Shown in.
(1) anti-flammability measures, the assay method of UL94 anti-flammability:
Flammable test is carried out according to the code of " the flammable test of plastic material, UL94 ".Based on burn rate, extinguishing
Ability and fall droplet (drip) that time, opposing are dripped the most just burn, and draw flame retardant rating.Sample for test: chi
Very little for 125mm length × 13mm width × be not more than 13mm thickness rod, the present invention when testing rod thickness elect as
1.5mm.According to this UL94 code, and based on the test result obtained for five samples, material flame retardant rating can be classified
For (UL94-HB): V0, V1, V2,5VA and/or 5VB；But in the present invention, only the flame retardant rating of material is categorized as: V0, V1
And V2, and the criteria for classification of each flame retardant rating is:
V0: make in the sample that its major axis relative to flame is 180 degree placing, removes after lighting flame, burning and/
Or the period smouldered was less than 10 seconds, and the sample being disposed vertically does not produces the drippage of burning particles of the absorbent cotton that ignites.
5th excellent flame out time is five excellent flame out times, each lights twice, wherein, the first flame out time lighted (t1)
The summation (being maximum flame out time (t1+t2)) of the flame out time (t2) lighted with second was less than or equal to 50 seconds.
V1: make in the sample that its major axis relative to flame is 180 degree placing, removes after lighting flame, burning and/
Or the period smouldered was less than 30 seconds, and the sample being disposed vertically does not produces the drippage of burning particles of the absorbent cotton that ignites.
5th excellent flame out time is five excellent flame out times, each lights twice, wherein, the first flame out time lighted (t1)
The summation (being maximum flame out time (t1+t2)) of the flame out time (t2) lighted with second was less than or equal to 250 seconds.
V2: make in the sample that its major axis relative to flame is 180 degree placing, removes after lighting flame, burning and/
Or the Average Life smouldered was less than 30 seconds, but the sample being disposed vertically produces the drippage of the cotton burning particles that ignites.5th
The flame out time of individual rod is five excellent flame out times, each lights twice, wherein the first flame out time lighted (t1) and
The summation (being maximum flame out time (t1+t2)) of two flame out times lighted (t2) was less than or equal to 250 seconds.
(2) assay method of melt flow rate (MFR) (MFR): allow plastic pellet within certain time (10min), uniform temperature and
Under pressure (various material standards different), be melted into plastic liquid, then by an a diameter of 2.1mm pipe flowed out gram
Number.Its value is the biggest, represents that the processing fluidity of this plastic material is the best, otherwise the poorest；Testing standard used herein is
ASTM D1238, unit: g/10min.Employing test condition is: 230 DEG C, melt flow rate (MFR) under 2.16kg load.
(3) assay method of cantilever beam impact strength: under the conditions of 23 DEG C, uses molding notched izod thick for 3.2mm
Impact rod measures notched Chalpy impact intensity.Notched Chalpy impact intensity is measured, with J/m record knot according to ASTM D256
Really.
Table 2 embodiment 1～5 and comparative example 1～2 physical property measurement result
As seen from Table 2, embodiment 1～5 is respectively provided with relatively with the fire retardation PC/ABS composite material obtained by comparative example 1～2
Good initial flame retardant rating and mechanical property, but the fire resistance of the fire retardation PC/ABS composite material obtained by comparative example 1～2
And notched Chalpy impact performance is through 85 DEG C of 300h, after 85% humidity processes, all occur in various degree significantly under
Fall.And it being different from comparative example 1～2, the hydrolytic resistance fire retardation PC/ABS composite material obtained by the embodiment of the present invention is being passed through
85 DEG C of 300h, after 85% humidity processes, still have anti-flammability and the notched Chalpy impact performance of excellence, and melt index
Increasing degree is the most little.
Why high hydrolytic resistance fire retardation PC/ABS composite material described herein can be through hot and humid process
Under the conditions of water and hot joint effect after be maintained to preferable anti-flammability and mechanical property, main reason is that raw material
Formula optimization improvement, be embodied in: first, compared to prior art, the application add in composition of raw materials have specific
Number average bead diameter and the toughener of specific molecular structure, this kind of toughener, can be by the hydrolysis of PC resin after by humid heat treatment
Control in relatively low level, simultaneously because in such toughener, the content of rubber part controls within the specific limits, even if therefore
PC/ABS composite, by humid heat treatment, still can be played good toughening effect by toughener；Furthermore, the application adds
Having added the chain extender of high epoxide equivalent, this kind of chain extender can be at the carbonic ester ester bond of PC resin or the phosphate ester ester bond of fire retardant
After occurring hydrolysis to generate living radical, the end group to PC resin blocks rapidly, prevents the further fall that active end group causes
Solve.Therefore the hydrolysis reducing PC resin and phosphate ester flame retardants of the application high degree, the mechanical property of composite
Even if the most well being kept after experience high heat and humidity processes with fire resistance, it is particularly well-suited to use environmental requirement to compare
High occasion.
High hydrolytic resistance fire retardation PC/ABS composite material obtained by the present invention can be widely applied to such as mobile phone, MP3 and plays
Device, computer, notebook computer, photographing unit, videocorder, panel computer, hand telephone, kitchen appliance or the one of electric housing
Partly, automobile component, building field shell or lid, and electrical appliance shell and frame etc.；Be particularly suited for rain and
The outdoor use occasion that sunlight corrodes, has wide market prospect and market efficiency.
The foregoing is only the preferred embodiments of the present invention.It should be pointed out that, in the feelings without departing from the principle of the invention
Under condition, also can make some improvement and modification, be accordingly to be regarded as protection scope of the present invention.
Claims (10)
1. high hydrolytic resistance fire retardation PC/ABS composite material, it is characterised in that: include following each component by weight:
Wherein said chain extender be epoxide equivalent be the styrene-acrylonitrile-methyl propenoic acid glycidyl of 0.1～10g/mol
Ester；
Wherein said toughener is MBS, methyl methacrylate-acrylic acid
Copolymer, ethylene-methyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene-acrylate-methacrylic acid contracting
Water glyceride terpolymer, the ethylene-vinyl acetate copolymer of maleic anhydride functional, acrylic compounds toughener and propylene
At least one in acid-silicone rubber kinds toughener, and the number average bead diameter of this toughener is 50～700nm.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 1, it is characterised in that: described chain extender benzene
The epoxide equivalent of ethylene-propylene nitrile-glycidyl methacrylate is 5.0～9.0g/mol.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 1, it is characterised in that: described toughener is
MBS, the number of this MBS is equal
Particle diameter is 130～300nm, and the content 50～70wt.% of rubber that wherein butadiene is formed.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 1, it is characterised in that: described PC resin is
In aromatic copolycarbonate, fatty poly-ester carbonate, aromatic-aliphatic Merlon and branching polycarbonate at least one
Kind.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 4, it is characterised in that: described PC resin is
Viscosity-average molecular weight is the aromatic copolycarbonate of 13000～40000.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 1, it is characterised in that: described ABS resin
Viscosity-average molecular weight be the content of rubber that in 8000～150000, and this ABS resin, butadiene is formed be 5～30wt.%, third
The segment content that alkene nitrile is formed is 10～30wt.%, and the segment content that styrene is formed is 40～70wt.%.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 1, it is characterised in that: described fire retardant is
At least one in nitrogenous flame ratardant, phosphonium flame retardant and metal organic sulfonate fire retardant.
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 7, it is characterised in that: described phosphor-containing flame-proof
Agent be Triphenyl phosphate, lindol, tricresyl phosphate base diphenyl, tricresyl phosphate xylyl ester, tricresyl phosphate (2,
4,6-trimethylphenyl) ester, tricresyl phosphate (2,4-di-tert-butyl-phenyl) ester, tricresyl phosphate (2,6-di-tert-butyl-phenyl) ester, isophthalic
Diphenol double (diphenyl phoshate), hydroquinone double (diphenyl phoshate), bisphenol-A-bis-(diphenyl phoshate), resorcinol
At least one in double (2,6-di-tert-butyl-phenyl phosphate esters) and hydroquinone double (2,6-dimethylphenylphosphate).
High hydrolytic resistance fire retardation PC/ABS composite material the most according to claim 8, it is characterised in that: described phosphor-containing flame-proof
Agent is bisphenol-A-bis-(diphenyl phoshate).
10. the preparation side of high hydrolytic resistance fire retardation PC/ABS composite material described in any claim in a claim 1 to 9
Method, it is characterised in that: comprise the steps:
(1) weigh 60～80 parts of PC resins, 10～15 parts of ABS resin, 8～15 parts of fire retardants, 2～5 parts of toughener, 0.5～2.0
Part chain extender, 0.4～0.8 part of other auxiliary agent, and will above-mentioned each component input mixer carry out being blended until uniformly, obtaining pre-
Mixed thing；
(2) by step (1) carries out melting mixing, and extruding pelletization in gained pre-composition input double screw extruder, height is obtained
Hydrolytic resistance fire retardation PC/ABS composite material；Wherein the screw slenderness ratio of double screw extruder is 40～45:1, and barrel temperature is
250～260 DEG C, screw speed is 400～500rpm.
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| CN107189396A (en) * | 2017-06-20 | 2017-09-22 | 苏州旭光聚合物有限公司 | Hydrolysis PC ABSs |
| CN109721993A (en) * | 2018-12-25 | 2019-05-07 | 金发科技股份有限公司 | A kind of polycarbonate composite material and epoxy-functional graft polymers are in the application for improving polycarbonate glossiness and process window |
| CN109777064A (en) * | 2017-11-14 | 2019-05-21 | 万华化学集团股份有限公司 | A kind of extrusion grade Polycarbonate alloy material and its preparation method and application |
| CN111349330A (en) * | 2020-03-26 | 2020-06-30 | 上海长伟锦磁工程塑料有限公司 | PC/ABS alloy with stable performance after injection molding and preparation method thereof |
| CN111647260A (en) * | 2020-05-25 | 2020-09-11 | 上海长伟锦磁工程塑料有限公司 | PC/ABS alloy for tail lamp housing and preparation method thereof |
| CN111823675A (en) * | 2020-07-29 | 2020-10-27 | 西南科技大学 | Composite board based on PMMA/PC and preparation method and application thereof |
| CN112063148A (en) * | 2020-09-16 | 2020-12-11 | 横店集团得邦工程塑料有限公司 | Hydrolysis-resistant PC composite material with high flame retardant property and preparation method thereof |
| CN112266619A (en) * | 2020-11-02 | 2021-01-26 | 广东圆融新材料有限公司 | Polycarbonate composition resistant to wet heat aging and preparation method thereof |
| CN114031915A (en) * | 2021-10-13 | 2022-02-11 | 金发科技股份有限公司 | Stable flame-retardant polycarbonate alloy composition and preparation method and application thereof |
| CN114573971A (en) * | 2022-03-28 | 2022-06-03 | 金发科技股份有限公司 | PC/ABS composite material and preparation method and application thereof |
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| CN112266619B (en) * | 2020-11-02 | 2022-08-23 | 广东圆融新材料有限公司 | Polycarbonate composition resistant to wet heat aging and preparation method thereof |
| CN114031915A (en) * | 2021-10-13 | 2022-02-11 | 金发科技股份有限公司 | Stable flame-retardant polycarbonate alloy composition and preparation method and application thereof |
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Application publication date: 20170111 |