CN103509267A - Halogen-free flame-retardant polystyrene resin composition - Google Patents
Halogen-free flame-retardant polystyrene resin composition Download PDFInfo
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- CN103509267A CN103509267A CN201210224650.5A CN201210224650A CN103509267A CN 103509267 A CN103509267 A CN 103509267A CN 201210224650 A CN201210224650 A CN 201210224650A CN 103509267 A CN103509267 A CN 103509267A
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- polystyrene resin
- halogen
- resin composite
- agent
- free flameproof
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Abstract
The invention relates to a halogen-free flame-retardant polystyrene resin composition which comprises the following components in percentage by weight: 75-82% of polystyrene, 3-7% of impact modifier, 1-3% of assistant, 8-12% of flame retardant, 4-5% of flame-retardant assistant and 0.2-1% of coupling agent.
Description
Technical field
The invention belongs to polymeric material field, refer to especially a kind of halogen-free flameproof polystyrene resin composite.
Background technology
Polystyrene resin composite is owing to having excellent processing characteristics, mechanical property and resistance toheat, in the office equipment housing fields such as printer, duplicating machine, computer or field of household appliances, be widely used, and these products have higher requirement to the flame retardant resistance of material, phenylethylene resin series belongs to inflammable material, conventionally need to add fire retardant and auxiliary agent just can meet the requirements of fire-retardant rank, fire-retardant assistance agent in actual use belongs to inorganic combustion inhibitor field, consumption is restricted, if usage quantity too much can affect cinnamic shock resistance.
Existing fire retardant includes halogen flame, organic phosphorus flame retardant and inorganic combustion inhibitor, wherein halogen flame occupies most fields with its excellent cost performance, and particularly bromide fire retardant is because its efficient flame retarding efficiency is widely used in Flameproof styrenic resin.
Although the widespread use of halogen flame, the product such as that halogen flame contains is poisonous, obnoxious flavour is paid attention to by various countries the harm of human body and environment.European Union completely forbid to be used halogen flame in 1 day July in 2006, and therefore improving fire retardant has become the problem that those skilled in the art and researchist face.
Summary of the invention
The object of the invention is to substitute particularly bromide fire retardant of former halogen flame with halogen-free flame retardants, and by the technical program, realize the performance of polyphenylacetylene combination.
The present invention is achieved by the following technical solutions:
A polystyrene resin composite, said composition comprises following component and weight percentage:
Polystyrene: 75-82;
Impact modifying agent: 3-7;
Fire-retardant assistance agent: 4-5
Auxiliary agent: 1-3;
Fire retardant: 8-12;
Coupling agent: 0.2-1
Described polystyrene resin is the polystyrene resin through impact modifiers modification; Lower 100 ℃ of test condition, kinematic viscosity m in 5% ethylbenzene solution
2/ s is 0.10-0.15; 200 ℃, during 5kg, the melt flow rate (MFR) of polystyrene resin is 8-13g/10min.
Described impact modifying agent consist of ethylidene norbornene ENB and terpolymer EP rubber.
During described impact modifying agent forms, ethylidene norbornene is the molar percentage 1.7% of impact modifying agent total amount.
Described fire retardant is one or both combinations in titanium dioxide multilayer coating structure grey red phosphorus, phosphorous acid lipid or phosphoric acid fat.
Described fire-retardant assistance agent is one or both combinations in zinc hydroxide or magnesium hydroxide.
Described auxiliary agent comprises that viscosity is greater than one or both the combination in the dimethyl-silicon oil lubricant of 1000pa.s, silicone powder, pentaerythritol stearate, polyethylene wax or Magnesium Stearate.
Described coupling agent is silane coupling agent, titanate coupling agent, the combination of one or both in Aluminate coupling agent.
The present invention with the beneficial effect of prior art is:
1, by add halogen-free flame-retardant in polystyrene, and not variation of product performance, realize and substitute the halogenated flame retardant impact on human body and environment in use.
2, by adding ethylidene norbornene can effectively improve Chinese People's Anti-Japanese Military and Political College's gas aging resistance in impact modifying agent.
3, in the technical program, the effect of antioxidant is also played in fire-retardant assistance agent simultaneously.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail:
What in the application's 1-6 embodiment, select is following component, polystyrene is selected melt flow rate (MFR) 10g/10min, Residuce of Styrene content 200ppm, the weight percent that anti-impact modifier is selected in embodiment 1-4 is 3,4, what in 5, embodiment 5-6, select is that weight percent is 5,6; What fire retardant was selected is titanium dioxide multilayer coating structure grey red phosphorus, selection of auxiliary be weight percent 1,2,3 dimethyl silicone oil, what coupling agent was selected is that weight percent is respectively 0.2,0.3,0.4,0.5,0.6 silane coupling agent.
For shown in each component according to the form below of embodiment 1-6, set, each component is pressed the amount premix in table, the twin screw extruder blend granulation that is 40 by length-to-diameter ratio, and extrusion temperature is set as 180-200 ℃, screw speed is 400rpm, and assurance material is extruded under certain vacuum degree.
The anti-impact modifier that described comparative example adopts is ethylene-propylene rubber(EPR) grafting vinyl silane coupling agent, what in comparative example, fire retardant was selected is bromide fire retardant, what its fire-retardant assistance agent was used is antimonous oxide, and antioxidant is phosphorous acid ring the third fat, and what photostabilizer was selected is salicylate.
The particle that embodiment 1-6 and comparative example obtain in 80 ℃ of dry its performance detections after moulding for 2 hours, the results are shown in Table 2 in hot-air oven.
1/8IZOD notched Izod impact strength ASTM D256;
Flame retardant resistance: UL94;
Smell evaluation method: get the sealed container bottle that 20 grams of finished product particles are placed in 1 liter, take out after 30 minutes and evaluate smell in 80 ℃ of bakings.
Table 1
Table 2
O more multilist shows that smell is lighter, and X more multilist shows that smell is heavier.
The result of embodiment 1-6 and comparative example shows by using halogen-free flame retardants and the impact modifying agent that adds ethylidene norbornene, can make polystyrene resin compositions in the situation that keep excellent flame retardant property, reduce the volatilization of halogen gas and improved the raising Chinese People's Anti-Japanese Military and Political College gas aging resistance of the shock resistance of product.
On the whole, that polystyrene resin compositions has is fire-retardant, environmental protection, resistance to marquis, thermally-stabilised, mechanical property good, be easy to the series of advantages such as machine-shaping, is very suitable for the light household electric appliances fields such as indicating meter, televisor, duplicating machine, facsimile recorder, printer, air conditioning machinery, refrigerator.
Claims (8)
1. a halogen-free flameproof polystyrene resin composite, is characterized in that: said composition comprises following component and weight percentage:
Polystyrene: 75-82;
Impact modifying agent: 3-7;
Fire-retardant assistance agent: 4-5
Auxiliary agent: 1-3;
Fire retardant: 8-12;
Coupling agent: 0.2-1
2. a kind of halogen-free flameproof polystyrene resin composite according to claim 1, is characterized in that: described polystyrene resin is the polystyrene resin through impact modifiers modification; Lower 100 ℃ of test condition, kinematic viscosity m in 5% ethylbenzene solution
2/ s is 0.10-0.15; 200 ℃, during 5kg, the melt flow rate (MFR) of polystyrene resin is 8-13g/10min.
3. a kind of halogen-free flameproof polystyrene resin composite according to claim 1, is characterized in that: described impact modifying agent consist of ethylidene norbornene ENB and terpolymer EP rubber.
4. a kind of halogen-free flameproof polystyrene resin composite according to claim 3, is characterized in that: during described impact modifying agent forms, ethylidene norbornene is the molar percentage 1.7% of impact modifying agent total amount.
5. a kind of halogen-free flameproof polystyrene resin composite according to claim 1, is characterized in that: described fire retardant is one or both combinations in titanium dioxide multilayer coating structure grey red phosphorus, phosphorous acid lipid or phosphoric acid fat.
6. a kind of halogen-free flameproof polystyrene resin composite according to claim 1, is characterized in that: described auxiliary agent comprises that viscosity is greater than one or both the combination in the dimethyl-silicon oil lubricant of 1000pa.s, silicone powder, pentaerythritol stearate, polyethylene wax or Magnesium Stearate.
7. a kind of halogen-free flameproof polystyrene resin composite according to claim 1, is characterized in that: described fire-retardant assistance agent is one or both combinations in zinc hydroxide or magnesium hydroxide.
8. a kind of halogen-free flameproof polystyrene resin composite according to claim 1, is characterized in that: described coupling agent is silane coupling agent titanate coupling agent, the combination of one or both in Aluminate coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224650.5A CN103509267A (en) | 2012-06-28 | 2012-06-28 | Halogen-free flame-retardant polystyrene resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224650.5A CN103509267A (en) | 2012-06-28 | 2012-06-28 | Halogen-free flame-retardant polystyrene resin composition |
Publications (1)
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| CN103509267A true CN103509267A (en) | 2014-01-15 |
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| CN201210224650.5A Pending CN103509267A (en) | 2012-06-28 | 2012-06-28 | Halogen-free flame-retardant polystyrene resin composition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104292682A (en) * | 2014-10-24 | 2015-01-21 | 黄忠波 | Flame-retardant polystyrene resin |
| CN110922691A (en) * | 2019-11-26 | 2020-03-27 | 盘锦海兴科技股份有限公司 | Halogen-free flame-retardant polystyrene master batch and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1521207A (en) * | 2003-01-27 | 2004-08-18 | 广州金发科技股份有限公司 | Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof |
-
2012
- 2012-06-28 CN CN201210224650.5A patent/CN103509267A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1521207A (en) * | 2003-01-27 | 2004-08-18 | 广州金发科技股份有限公司 | Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104292682A (en) * | 2014-10-24 | 2015-01-21 | 黄忠波 | Flame-retardant polystyrene resin |
| CN110922691A (en) * | 2019-11-26 | 2020-03-27 | 盘锦海兴科技股份有限公司 | Halogen-free flame-retardant polystyrene master batch and preparation method thereof |
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Application publication date: 20140115 |