CN102492231B - Halogen-free flame-retarding polystyrene composite material and preparation method thereof - Google Patents
Halogen-free flame-retarding polystyrene composite material and preparation method thereof Download PDFInfo
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- CN102492231B CN102492231B CN201110394836.0A CN201110394836A CN102492231B CN 102492231 B CN102492231 B CN 102492231B CN 201110394836 A CN201110394836 A CN 201110394836A CN 102492231 B CN102492231 B CN 102492231B
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- polystyrene
- halogen
- composite material
- retarding
- free flame
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular 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
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a halogen-free flame-retarding polystyrene composite material and a preparation method thereof, which belong to the technical field of polystyrene composite flame-retarding materials and aim at solving the technical problems and providing a smoke-free composite material formed by polystyrene and a halogen-free flame retardant and a method for preparing the smoke-free composite material. The technical scheme is that the halogen-free flame-retarding polystyrene composite material is formed by compositing, by weight, 4-7 parts of the polystyrene, 1-2 parts of polyphenyl ether and 2-4 parts of intumescent flame retardant. The preparation method of the composite material comprises the steps of 1 preparing raw materials, 2 drying, 3 high-mixing and 4 extruding and molding. The fire retardant treatment is performed to the polystyrene by means of the halogen-free flame retardant, the flame retardant is compatible with a base body well, produced flame-resistant polystyrene is not easily ignited, the char forming effect is obvious, smoke and melting-drop phenomenon are not caused, heat stability is good, and limiting oxygen index can reach to 30.2%.
Description
Technical field
A kind of halogen-free flame-retarding polystyrene composite material of the present invention and preparation method thereof belongs to polystyrene composite flame-proof material technical field.
Background technology
Fire retardant can be divided into inorganic combustion inhibitor and organic fire-retardant.Inorganic combustion inhibitor has fire-retardant simultaneously and presses down cigarette effect, does not produce toxic gas and corrosive gas during burning, but addition is comparatively large, therefore has a strong impact on by the physical and mechanical property of fire proofing and processing characteristics.Halogenated flame retardant good flame retardation effect in organic fire-retardant, halogen containing flame-retardant can produce the pernicious gases such as a large amount of dense smoke and hydrogen halides in combustion, brings harmful effect, will be eliminated gradually to human body and environment.
Summary of the invention
The present invention, in order to overcome the deficiencies in the prior art, provides a kind of and comprises smokeless composite that polystyrene and halogen-free flame retardants be composited and preparation method thereof.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
A kind of halogen-free flame-retarding polystyrene composite material, it is composited by polystyrene, polyphenylene oxide, expansion type flame retardant, and the parts by weight of its raw material are: polystyrene 4-7 part, polyphenylene oxide 1-2 part, expansion type flame retardant 2-4 part.
Described expansion type flame retardant or be expanded graphite, or be composite nitrogen phosphorus fire retardant, or be APP.
Described composite nitrogen phosphorus fire retardant comprises melamine, pentaerythrite and APP, and its weight part ratio is 4:8:3-8.
Prepare a preparation method for described composite, carry out according to following steps:
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 4-7 part, polyphenylene oxide 1-2 part, fire retardant 2-4 part;
Second step, dry
By described polyphenylene oxide dry 3-6 hour at 110 DEG C-135 DEG C, simultaneously by described expansion type flame retardant dry 3-6 hour at 78 DEG C-90 DEG C;
3rd step, high mixed
With homogenizer, expansion type flame retardant and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture from side spout feeding double screw extruder melt extrude shaping, obtain halogen-free flame-retarding polystyrene composite material.
In 4th step of described preparation method, double screw extruder extrusion parameter is: screw speed is 300r/min, and barrel temperature is 220 DEG C-230 DEG C, and head temperature is 240 DEG C-260 DEG C, and extruder temperature is 200 DEG C-220 DEG C.
The beneficial effect that the present invention compared with prior art has is: the present invention adopts halogen-free flame retardants p-poly-phenyl ethene to carry out flame treatment, the compatibility of fire retardant and matrix is good, obtained flame-retardant polystyrene is not easily lighted, become charcoal successful, non smoke drips a phenomenon with melting, Heat stability is good, limited oxygen index can reach 30.2%.
Detailed description of the invention
Embodiment 1
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 4.5 parts, polyphenylene oxide 1.8 parts, expanded graphite 3.7 parts;
Second step, dry
By described polyphenylene oxide at 118 DEG C dry 5.5 hours, simultaneously by described expanded graphite at 80 DEG C dry 4 hours;
3rd step, high mixed
With homogenizer, expanded graphite and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture melt extrudes shaping from side spout feeding double screw extruder, double screw extruder extrusion parameter is: screw speed is 300r/min, barrel temperature is 228 DEG C, head temperature is 258 DEG C, extruder temperature is 203 DEG C, obtains halogen-free flame-retarding polystyrene composite material.
Embodiment 2
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 6.4 parts, polyphenylene oxide 1.6 parts, composite nitrogen phosphorus fire retardant 2 parts; In composite nitrogen phosphorus fire retardant, the weight part ratio of melamine, pentaerythrite and APP is 4:8:4.5;
Second step, dry
By described polyphenylene oxide at 120 DEG C dry 4 hours, simultaneously by described composite nitrogen phosphorus fire retardant at 83 DEG C dry 5.5 hours;
3rd step, high mixed
With homogenizer, composite nitrogen phosphorus fire retardant and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture melt extrudes shaping from side spout feeding double screw extruder, double screw extruder extrusion parameter is: screw speed is 300r/min, barrel temperature is 221 DEG C, head temperature is 245 DEG C, extruder temperature is 209 DEG C, obtains halogen-free flame-retarding polystyrene composite material.
Embodiment 3
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 5.2 parts, polyphenylene oxide 1.3 parts, composite nitrogen phosphorus fire retardant 3.5 parts; In composite nitrogen phosphorus fire retardant, the weight part ratio of melamine, pentaerythrite and APP is 4:8:7;
Second step, dry
By described polyphenylene oxide at 132 DEG C dry 3.5 hours, simultaneously by described composite nitrogen phosphorus fire retardant at 90 DEG C dry 3 hours;
3rd step, high mixed
With homogenizer, composite nitrogen phosphorus fire retardant and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture melt extrudes shaping from side spout feeding double screw extruder, double screw extruder extrusion parameter is: screw speed is 300r/min, barrel temperature is 227 DEG C, head temperature is 250 DEG C, extruder temperature is 212 DEG C, obtains halogen-free flame-retarding polystyrene composite material.
Embodiment 4
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 6.3 parts, polyphenylene oxide 1.3 parts, composite nitrogen phosphorus fire retardant 2.4 parts; In composite nitrogen phosphorus fire retardant, the weight part ratio of melamine, pentaerythrite and APP is 4:8:5.5;
Second step, dry
By described polyphenylene oxide at 129 DEG C dry 4.5 hours, simultaneously by described composite nitrogen phosphorus fire retardant at 87 DEG C dry 3.5 hours;
3rd step, high mixed
With homogenizer, composite nitrogen phosphorus fire retardant and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture melt extrudes shaping from side spout feeding double screw extruder, double screw extruder extrusion parameter is: screw speed is 300r/min, barrel temperature is 222 DEG C, head temperature is 252 DEG C, extruder temperature is 217 DEG C, obtains halogen-free flame-retarding polystyrene composite material.
Embodiment 5
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 5.9 parts, polyphenylene oxide 1.2 parts, APP 2.9 parts;
Second step, dry
By described polyphenylene oxide at 123 DEG C dry 5 hours, simultaneously by described APP at 85 DEG C dry 5 hours;
3rd step, high mixed
With homogenizer, APP and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture melt extrudes shaping from side spout feeding double screw extruder, double screw extruder extrusion parameter is: screw speed is 300r/min, barrel temperature is 224 DEG C, head temperature is 247 DEG C, extruder temperature is 210 DEG C, obtains halogen-free flame-retarding polystyrene composite material.
The invention is not restricted to above-described embodiment, in the ken that those of ordinary skill in the art possess, make a variety of changes under the prerequisite of present inventive concept can not also be departed from.
Claims (3)
1. a halogen-free flame-retarding polystyrene composite material, is characterized in that it is composited by polystyrene, polyphenylene oxide, expansion type flame retardant, and the parts by weight of its raw material are: polystyrene 4-7 part, polyphenylene oxide 1-2 part, expansion type flame retardant 2-4 part; Described expansion type flame retardant is expanded graphite, or is APP.
2. prepare a preparation method for composite as claimed in claim 1, it is characterized in that carrying out according to following steps:
The first step, prepares raw material
The raw material preparing halogen-free flame-retarding polystyrene composite material is taken according to following weight portion: polystyrene 4-7 part, polyphenylene oxide 1-2 part, fire retardant 2-4 part;
Second step, dry
By described polyphenylene oxide dry 3-6 hour at 110 DEG C-135 DEG C, simultaneously by described expansion type flame retardant dry 3-6 hour at 78 DEG C-90 DEG C;
3rd step, high mixed
With homogenizer, expansion type flame retardant and polyphenylene oxide are mixed, obtain powders mixture;
4th step, extrusion molding
Respectively by described polystyrene from main spout, described powders mixture from side spout feeding double screw extruder melt extrude shaping, obtain halogen-free flame-retarding polystyrene composite material.
3. the preparation method of a kind of halogen-free flame-retarding polystyrene composite material according to claim 2, it is characterized in that in the 4th step of described preparation method, double screw extruder extrusion parameter is: screw speed is 300r/min, barrel temperature is 220 DEG C-230 DEG C, head temperature is 240 DEG C-260 DEG C, and extruder temperature is 200 DEG C-220 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110394836.0A CN102492231B (en) | 2011-12-02 | 2011-12-02 | Halogen-free flame-retarding polystyrene composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110394836.0A CN102492231B (en) | 2011-12-02 | 2011-12-02 | Halogen-free flame-retarding polystyrene composite material and preparation method thereof |
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| CN102492231A CN102492231A (en) | 2012-06-13 |
| CN102492231B true CN102492231B (en) | 2015-03-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150028247A1 (en) | 2013-07-23 | 2015-01-29 | Sabic Innovative Plastics Ip B.V. | Rigid foam and associated article and method |
| US9175160B2 (en) | 2013-08-28 | 2015-11-03 | Sabic Global Technologies B.V. | Blend of poly(phenylene ether) particles and polyoxymethylene, article thereof, and method of preparation |
| US9447227B2 (en) | 2013-10-03 | 2016-09-20 | Sabic Global Technologies B.V. | Flexible polyurethane foam and associated method and article |
| CN103895297B (en) * | 2014-02-28 | 2016-04-20 | 杭州师范大学 | A kind of flame-retardant aluminum plastic composite sheet and preparation method thereof |
| CN105968352A (en) * | 2016-06-29 | 2016-09-28 | 广州大学 | Preparation methods of amino triazine derivative macromolecular char forming agent and polypropylene flame retardant |
| CN108178883A (en) * | 2018-02-01 | 2018-06-19 | 哈尔滨理工大学 | A kind of halogen-free flameproof polystyrene of fire retardant selective distribution and preparation method thereof |
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| CN101808798A (en) * | 2007-09-28 | 2010-08-18 | 巴斯夫欧洲公司 | Be used to prepare the method for flameproofed thermoplastic moulding compounds |
| CN102051037A (en) * | 2010-12-30 | 2011-05-11 | 金发科技股份有限公司 | Halogen-free flame-proof polyenyl ether composition |
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| JPS53418B1 (en) * | 1970-11-13 | 1978-01-09 |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101808798A (en) * | 2007-09-28 | 2010-08-18 | 巴斯夫欧洲公司 | Be used to prepare the method for flameproofed thermoplastic moulding compounds |
| CN102051037A (en) * | 2010-12-30 | 2011-05-11 | 金发科技股份有限公司 | Halogen-free flame-proof polyenyl ether composition |
Non-Patent Citations (2)
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