CN109971149A - A kind of halogen-free flame retardant PC material of resistance to long term heat ageing and preparation method thereof - Google Patents
A kind of halogen-free flame retardant PC material of resistance to long term heat ageing and preparation method thereof Download PDFInfo
- Publication number
- CN109971149A CN109971149A CN201910221190.2A CN201910221190A CN109971149A CN 109971149 A CN109971149 A CN 109971149A CN 201910221190 A CN201910221190 A CN 201910221190A CN 109971149 A CN109971149 A CN 109971149A
- Authority
- CN
- China
- Prior art keywords
- halogen
- resistance
- flame retardant
- long term
- free flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2427/00—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 a halogen; Derivatives of such polymers
- C08J2427/02—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2427/18—Homopolymers or copolymers of tetrafluoroethylene
-
- 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
- C08J2469/00—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
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses halogen-free flame retardant PC material of a kind of resistance to long term heat ageing and preparation method thereof, which is made of PC resin, silicon copolymerization PC, fire-retardant master granule, stabilizer, anti-dripping agent, primary antioxidant, auxiliary antioxidant, lubricant and ultraviolet absorbing agent.Each component is first sufficiently mixed uniformly by preparation method very simple, is added in double screw extruder and is squeezed out, is granulated.Halogen-free flame retardant PC material of the invention has excellent flame retardant property and resistance to long term heat ageing performance, and preparation method is simple, production cost is low, easy to industrialized production.
Description
Technical field
The invention belongs to PC technical field of composite materials, and in particular to a kind of halogen-free flame retardant PC material of resistance to long term heat ageing
And preparation method thereof.
Background technique
PC resin, i.e. polycarbonate resin, in addition to excellent mechanical performance, electrical property, the transparency, dimensionally stable
Property outside, also have preferable heat resistance (150 DEG C of glass transition temperature, 135 DEG C of heat distortion temperature).Therefore, PC resin is wide
It is general to be used for household electrical appliances, charger case or other electronic apparatus accessories.
However, the resistance to long term heat ageing performance of existing PC composite material is generally poor, it is limited in many fields
Using.CN 106674962A discloses a kind of PC/ABS alloy and preparation method thereof that heat aging performance is excellent, the PC/ABS alloy
After carrying out 1000h heat ageing at 100 DEG C, notch impact strength conservation rate can achieve 56%~76%, have preferable
Resistance to long term heat ageing performance, but 100 DEG C of aging temperature is still relatively low, still can not meet practical application request well.Cause
This, the halogen-free flame retardant PC material for developing a kind of long-term resistance to higher temperature of energy is necessary.
Summary of the invention
The purpose of the present invention is to provide halogen-free flame retardant PC materials of a kind of resistance to long term heat ageing and preparation method thereof.
The technical solution used in the present invention is:
A kind of halogen-free flame retardant PC material of resistance to long term heat ageing, consists of the following mass percentage components:
PC resin: 64.8%~79.8%；
Silicon is copolymerized PC:15%~30%；
Fire-retardant master granule: 4%~10%；
Stabilizer: 0.2%~0.5%；
Anti-dripping agent: 0.5%~1%；
Primary antioxidant: 0.1%~0.3%；
Auxiliary antioxidant: 0.1%~0.3%；
Lubricant: 0.1%~0.5%；
Ultraviolet absorbing agent: 0.2%~0.5%.
Preferably, the weight average molecular weight of the PC resin is 30000~40000g/mol, and melt index is 4~7g/
10min, melt index test condition: 300 DEG C/1.2kg.
Preferably, the content of siloxane of the silicon copolymerization PC is 5%~15%, and melt index is 3~5g/10min, melting
Index test condition: 300 DEG C/1.2kg.
Preferably, the fire-retardant master granule is made of PC and organic sesqui siloxane fire retardant, and organic sesqui siloxane is fire-retardant
The additive amount of agent is 2wt%~4wt%, and the melt index of PC is 8~12g/10min, melt index test condition: 300 DEG C/
1.2kg。
Preferably, the stabilizer is sodium dihydrogen phosphate.
Preferably, the anti-dripping agent is the polytetrafluoroethylene (PTFE) of styrene-acrylonitrile copolymer cladding.
It is further preferred that the anti-dripping agent is the polytetrafluoroethylene (PTFE) of styrene-acrylonitrile copolymer cladding, benzene second
Alkene-acrylonitrile copolymer mass percentage is 50% (50%AS coats PTFE).
Preferably, the primary antioxidant is at least one of Hinered phenols antioxidant, aromatic amine antioxidant.
Preferably, the auxiliary antioxidant is at least one of phosphite ester antioxidant, sulphur ester antioxidant.
Preferably, the lubricant is pentaerythritol stearate (PETS).
Preferably, the ultraviolet absorbing agent is at least one of UV-329, UV-234, UV-531.
The preparation method of the halogen-free flame retardant PC material of above-mentioned resistance to long term heat ageing, comprising the following steps:
1) PC resin is dried；
2) PC resin, silicon are copolymerized PC, fire-retardant master granule, stabilizer, anti-dripping agent, primary antioxidant, auxiliary antioxidant, lubrication
High-speed mixer is added in agent and ultraviolet absorbing agent, is uniformly mixed；
3) material in high-speed mixer is transferred to double screw extruder, squeezes out, is granulated, obtains the nothing of resistance to long term heat ageing
Halogen fire retardation PC material.
Preferably, the step 1) drying carries out at 120~130 DEG C, and the dry water content to PC resin is lower than
0.02%.
Preferably, the processing temperature of the step 3) double screw extruder be 240~260 DEG C, screw speed be 250~
300RPM。
The beneficial effects of the present invention are: halogen-free flame retardant PC material of the invention has excellent flame retardant property and resistance to long term thermal
Ageing properties, and preparation method is simple, production cost is low, it is easy to industrialized production.
1) in halogen-free flame retardant PC material of the invention be added with high molecular weight (i.e. eutectic refers to) PC resin, terminal hydroxy group and
The content of carboxyl end group is low, and activity is low, can significantly improve the long-term heat resistance of PC material；
2) it is copolymerized PC added with silicon in halogen-free flame retardant PC material of the invention, with stable organosiloxane "-Si-
0-Si- " structure can significantly improve the long-term heat resistance of PC material；
3) it is added with stabilizer sodium dihydrogen phosphate in halogen-free flame retardant PC material of the invention, can be reacted with PC resin,
Play the role of reducing PC resin both ends group activity and content, to play heat-staple effect.
Specific embodiment
The present invention will be further explained combined with specific embodiments below and explanation.
Examples 1 to 4 and comparative example 1~5:
The raw material of the halogen-free flame retardant PC material of Examples 1 to 4 and comparative example 1~5 forms (quality percentage as shown in the table
Than):
The raw material of the halogen-free flame retardant PC material of 1 Examples 1 to 4 of table and comparative example 1~5 forms table
Note:
MI (melt index) is to test to obtain under conditions of 300 DEG C/1.2kg；
Fire-retardant master granule is by PC and organic sesqui siloxane fire retardant (FR-600 of Shan De new material Co., Ltd, Foshan City)
Composition, the additive amount of organic sesqui siloxane fire retardant are 3wt%, and the melt index of PC is 10g/10min, melt index test
Condition: 300 DEG C/1.2kg；
Fire-retardant master granule A is made of PC and perfluorobutyl potassium sulfonate fire retardant, the additive amount of perfluorobutyl potassium sulfonate fire retardant
For 3wt%, the melt index of PC is 10g/10min, melt index test condition: 300 DEG C/1.2kg；
Halogen-free flame retardant PC material dries 4h the preparation method is as follows: PC resin is placed at 120 DEG C, then weighs respectively by formula
High-speed mixer is added in raw material, and adjustment blender revolving speed to 500r/min stirs 5min, then the material in high-speed mixer is turned
Enter double screw extruder, squeezes out, is granulated, obtain halogen-free flame retardant PC material.
Test case:
The halogen-free flame retardant PC material of Examples 1 to 4 and comparative example 1~5 is tested for the property, testing procedure are as follows: by nothing
(process conditions of injection molding: nozzle temperature is 270 DEG C, and each area's temperature is 265 for injection molding after halogen fire retardation PC material is dry
DEG C, 260 DEG C, 250 DEG C, the dwell time be 2~4s, injection pressure be 40~60MPa), be prepared into standard testing batten, then carry out
Performance test, test result is as follows shown in table:
The performance test results of the halogen-free flame retardant PC material of 2 Examples 1 to 4 of table and comparative example 1~5
Note:
Melt index: it is tested according to ASTM D1238 standard；
Lzod notch impact strength: it is tested according to ASTM D256 standard；
Impact conservation rate: standard testing batten by heat ageing, (grasp by the heat ageing of 135 DEG C/500h or 135 DEG C/1000h
Make) conservation rate of Lzod notch impact strength afterwards.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of halogen-free flame retardant PC material of resistance to long term heat ageing, it is characterised in that: consist of the following mass percentage components:
PC resin: 64.8%~79.8%；
Silicon is copolymerized PC:15%~30%；
Fire-retardant master granule: 4%~10%；
Stabilizer: 0.2%~0.5%；
Anti-dripping agent: 0.5%~1%；
Primary antioxidant: 0.1%~0.3%；
Auxiliary antioxidant: 0.1%~0.3%；
Lubricant: 0.1%~0.5%；
Ultraviolet absorbing agent: 0.2%~0.5%.
2. the halogen-free flame retardant PC material of resistance to long term heat ageing according to claim 1, it is characterised in that: the PC resin
Weight average molecular weight be 30000~40000g/mol, melt index be 4~7g/10min, melt index test condition: 300 DEG C/
1.2kg。
3. the halogen-free flame retardant PC material of resistance to long term heat ageing according to claim 1, it is characterised in that: the silicon is copolymerized PC
Content of siloxane be 5%~15%, melt index be 3~5g/10min, melt index test condition: 300 DEG C/1.2kg.
4. the halogen-free flame retardant PC material of resistance to long term heat ageing according to claim 1, it is characterised in that: the fire-retardant master granule
It is made of PC and organic sesqui siloxane fire retardant, the additive amount of organic sesqui siloxane fire retardant is 2wt%~4wt%, PC
Melt index be 8~12g/10min, melt index test condition: 300 DEG C/1.2kg.
5. the halogen-free flame retardant PC material of resistance to long term heat ageing described according to claim 1~any one of 4, feature exist
In: the stabilizer is sodium dihydrogen phosphate.
6. the halogen-free flame retardant PC material of resistance to long term heat ageing described according to claim 1~any one of 4, feature exist
In: the anti-dripping agent is the polytetrafluoroethylene (PTFE) of styrene-acrylonitrile copolymer cladding.
7. the halogen-free flame retardant PC material of resistance to long term heat ageing described according to claim 1~any one of 4, feature exist
In: the primary antioxidant is at least one of Hinered phenols antioxidant, aromatic amine antioxidant；The auxiliary antioxidant is Asia
At least one of phosphoric acid ester antioxidant, sulphur ester antioxidant.
8. the halogen-free flame retardant PC material of resistance to long term heat ageing described according to claim 1~any one of 4, feature exist
In: the lubricant is pentaerythritol stearate.
9. the halogen-free flame retardant PC material of resistance to long term heat ageing described according to claim 1~any one of 4, feature exist
In: the ultraviolet absorbing agent is at least one of UV-329, UV-234, UV-531.
10. the preparation method of the halogen-free flame retardant PC material of resistance to long term heat ageing described in any one of claim 1~9,
It is characterized in that: the following steps are included:
1) PC resin is dried；
2) by PC resin, silicon copolymerization PC, fire-retardant master granule, stabilizer, anti-dripping agent, primary antioxidant, auxiliary antioxidant, lubricant and
High-speed mixer is added in ultraviolet absorbing agent, is uniformly mixed；
3) material in high-speed mixer is transferred to double screw extruder, squeezes out, is granulated, obtain the Halogen resistance of resistance to long term heat ageing
Fire PC material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221190.2A CN109971149B (en) | 2019-03-22 | 2019-03-22 | Long-term heat aging resistant halogen-free flame-retardant PC material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910221190.2A CN109971149B (en) | 2019-03-22 | 2019-03-22 | Long-term heat aging resistant halogen-free flame-retardant PC material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109971149A true CN109971149A (en) | 2019-07-05 |
| CN109971149B CN109971149B (en) | 2020-07-21 |
Family
ID=67079998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221190.2A Active CN109971149B (en) | 2019-03-22 | 2019-03-22 | Long-term heat aging resistant halogen-free flame-retardant PC material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109971149B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111978699A (en) * | 2020-08-12 | 2020-11-24 | 中广核俊尔(浙江)新材料有限公司 | High-shading thin-wall flame-retardant PC material and preparation method and application thereof |
| CN112759914A (en) * | 2020-12-28 | 2021-05-07 | 上海中镭新材料科技有限公司 | Compound halogen-free flame-retardant engineering resin and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030191245A1 (en) * | 1998-12-25 | 2003-10-09 | Idemitsu Petrochemical Co., Ltd. | Flame-retardant polycarbonate resin composition and formed article |
| CN103724972A (en) * | 2013-12-31 | 2014-04-16 | 上海长伟锦磁工程塑料有限公司 | Low-temperature-resistance flame-retardant photodiffusion polycarbonate composite material and preparation method thereof |
| CN104419184A (en) * | 2013-09-05 | 2015-03-18 | 青岛欣展塑胶有限公司 | Low-temperature-resistant anti-impact flame-retardant modified PC (polycarbonate) composite material |
| CN104693772A (en) * | 2015-03-04 | 2015-06-10 | 安徽科聚新材料有限公司 | Glass fiber-mica mixed enhanced polycarbonate material and preparation method thereof |
| CN105086414A (en) * | 2015-09-15 | 2015-11-25 | 国网山东沂南县供电公司 | Polycarbonate (PC) material for watt-hour meter shells |
| CN105440630A (en) * | 2015-12-17 | 2016-03-30 | 东莞市卡尔文塑胶科技有限公司 | General-grade blended doped transparent flame-retardant masterbatch used for PC material, and preparation method and applications thereof |
| CN106147187B (en) * | 2016-08-03 | 2018-05-22 | 广东聚石化学股份有限公司 | A kind of high glaze halogen-free flame retardant PC material and preparation method thereof |
| CN108485223A (en) * | 2018-02-01 | 2018-09-04 | 广东聚石化学股份有限公司 | A kind of automobile-used PC/ABS alloys and preparation method thereof |
-
2019
- 2019-03-22 CN CN201910221190.2A patent/CN109971149B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030191245A1 (en) * | 1998-12-25 | 2003-10-09 | Idemitsu Petrochemical Co., Ltd. | Flame-retardant polycarbonate resin composition and formed article |
| CN104419184A (en) * | 2013-09-05 | 2015-03-18 | 青岛欣展塑胶有限公司 | Low-temperature-resistant anti-impact flame-retardant modified PC (polycarbonate) composite material |
| CN103724972A (en) * | 2013-12-31 | 2014-04-16 | 上海长伟锦磁工程塑料有限公司 | Low-temperature-resistance flame-retardant photodiffusion polycarbonate composite material and preparation method thereof |
| CN104693772A (en) * | 2015-03-04 | 2015-06-10 | 安徽科聚新材料有限公司 | Glass fiber-mica mixed enhanced polycarbonate material and preparation method thereof |
| CN105086414A (en) * | 2015-09-15 | 2015-11-25 | 国网山东沂南县供电公司 | Polycarbonate (PC) material for watt-hour meter shells |
| CN105440630A (en) * | 2015-12-17 | 2016-03-30 | 东莞市卡尔文塑胶科技有限公司 | General-grade blended doped transparent flame-retardant masterbatch used for PC material, and preparation method and applications thereof |
| CN106147187B (en) * | 2016-08-03 | 2018-05-22 | 广东聚石化学股份有限公司 | A kind of high glaze halogen-free flame retardant PC material and preparation method thereof |
| CN108485223A (en) * | 2018-02-01 | 2018-09-04 | 广东聚石化学股份有限公司 | A kind of automobile-used PC/ABS alloys and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111978699A (en) * | 2020-08-12 | 2020-11-24 | 中广核俊尔(浙江)新材料有限公司 | High-shading thin-wall flame-retardant PC material and preparation method and application thereof |
| CN112759914A (en) * | 2020-12-28 | 2021-05-07 | 上海中镭新材料科技有限公司 | Compound halogen-free flame-retardant engineering resin and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109971149B (en) | 2020-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110157174A (en) | A kind of the fire-retardant polycarbonate composite material and preparation method and application of glass fiber reinforcement | |
| CN102731921B (en) | Weatherproof polymer alloy used for replacing ABS | |
| CN101165093B (en) | High hydrolysis resistance anti-flaming enhanced polybutylene terephthalate composition and preparation method thereof | |
| CN104231575A (en) | Halogen-free and phosphorus-free PBT enhanced composite material and preparation method thereof | |
| CN109971149A (en) | A kind of halogen-free flame retardant PC material of resistance to long term heat ageing and preparation method thereof | |
| CN105419294A (en) | Wide angle bending-resistant low-fiber emergency reinforced PC/PBT alloy material and preparation method thereof | |
| CN104725817A (en) | Environmentally-friendly flame-retardant reinforced impact-resistant PC composite material | |
| CN108129825B (en) | high-CTI high-heat-resistance halogen-free flame-retardant PC/ABS composition and preparation method thereof | |
| CN104448753A (en) | PC/ABS blending flame-retardant material | |
| WO2020011058A1 (en) | Polycarbonate composition and preparation method therefor and application thereof | |
| CN104086912B (en) | A kind of halogen-free flame-retardant glass fiber strengthens polyphenyl ether/styrene compositions and preparation method thereof | |
| CN113897045A (en) | Flame-retardant polycarbonate alloy composition and preparation method and application thereof | |
| CN109735046A (en) | Fire-retardant heat-staple ABS composite material of enhancing of one kind and preparation method thereof | |
| CN113637309A (en) | Flame-retardant polycarbonate alloy composition with high thermal stability and preparation method and application thereof | |
| CN106633752B (en) | Halogen-free flame-retardant PC/ABS alloy material and preparation method and application thereof | |
| CN103044796B (en) | A kind of epoxy resin strengthens polystyrene bittern-free flame-proof material and preparation method thereof | |
| CN104419182A (en) | Environment-friendly and flame-retardant reinforcing polycarbonate (PC) composite material and preparation method thereof | |
| CN104725823A (en) | Low-temperature-resistant flame-retardant PC (polycarbonate) composite material and preparation method thereof | |
| CN102643526A (en) | Halogen-free flame-retarding polyphenylene oxide composition with ultrahigh heat resistance | |
| CN102702660B (en) | Halogen-free and flame retardant ACS (Acrylonitrile-Chlorinated polyethylene-Styrene)/PC (Poly Carbonate) alloy | |
| CN104513467A (en) | Polycarbonate (PC) blended alloy material | |
| CN113444317A (en) | Preparation method of highlight flame-retardant polypropylene material | |
| CN101824203A (en) | Solid polycondensation type phosphate ester inflaming retarding ABS/PC (Acrylonitrile Butadiene Styrene/Polycarbonate) alloy and preparation method thereof | |
| CN112143197A (en) | Novel flame-retardant polycarbonate composition | |
| CN114957931B (en) | High-anti-dripping flame-retardant thermoplastic polyester elastomer composite material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |