CN103509268A - Anti-aging flame-retardant styrene resin composition - Google Patents
Anti-aging flame-retardant styrene resin composition Download PDFInfo
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- CN103509268A CN103509268A CN201210224882.0A CN201210224882A CN103509268A CN 103509268 A CN103509268 A CN 103509268A CN 201210224882 A CN201210224882 A CN 201210224882A CN 103509268 A CN103509268 A CN 103509268A
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Abstract
The invention relates to an anti-aging flame-retardant styrene resin composition. The anti-aging flame-retardant styrene resin composition comprises the following components in percentage by weight: 70-82 percent of styrene, 1-7 percent of impact modifier, 1-3 percent of smell inhibitor, 1-3 percent of smell improving agent, 4-5 percent of flame-retardant assisting agent, 5-12 percent of brominated flame retardant and 3-5 percent of o-bromostyrene.
Description
Technical field
The invention belongs to polymeric material field, refer to especially a kind of anti-aging difficult combustion composition of styrene resin.
Background technology
Composition of styrene resin is owing to having excellent processing characteristics, mechanical property and resistance toheat, in office equipment housing fields such as printer, duplicating machine, 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 fire-retardant assistance 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.
What now can replace halogen flame also only has organic phosphorus flame retardant and an inorganic flame retardant, but the greatest drawback of the inorganic combustion inhibitor in this two based flame retardant is the performance of impact of interference properties-correcting agent, and the cost of this two based flame retardant is always high, increased the cost of styrene resin.Therefore can look for a kind of good flame retardation effect cost is low and impact on environmental and human body is little fire retardant be the target that those skilled in the art find.
The atmospheric aging performance that simultaneously improves styrene resin is also the problem of styrene resin.
Summary of the invention
The object of the invention is the particularly re-using of bromide fire retardant of former halogen flame, and realize halogen flame to the low murder by poisoning of human body and environment and low smell by the technical program.
Another object of the present invention is to realize Chinese People's Anti-Japanese Military and Political College's gas aging resistance of styrene resin.
The present invention is achieved by the following technical solutions:
A difficult combustion composition of styrene resin, said composition comprises following component and weight percentage:
Described styrene resin is the styrene 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 styrene 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 smell activator is that boiling point is low, and volatile small-molecule substance is selected from ethanol, acetic acid, ether, ethyl acetate or water.
Described smell inhibitor is selected from the porous silica gel of alkali metal aluminosilicate powder, diatomite or pore.
Described bromide fire retardant comprises tetrabromo-bisphenol, TDE, 2,4, one or more in 6-tribromo triple phenoxyl-1,3,5-triazines, ethylidene-(two tetrabromo phthalimide), brominated epoxy oligomer or tetrabromophthalate-(2-ethylhexyl) ester.
Described fire-retardant assistance agent comprises one or more in zinc borate, antimonous oxide, antimony peroxide, sodium antimonate or molybdenum oxide.
The auxiliary agent that also includes the weight percent 0-3 in total amount in described composition of styrene resin, described auxiliary agent includes one or more in antioxidant, thermo-stabilizer, photostabilizer, lubricant or anti-dripping agent.
Described oxygenant is phosphorous acid esters antioxidant; Described thermo-stabilizer is rare earth thermal stabilizer; Described photostabilizer is selected from one or more in 2-dihydroxy benaophenonel, salicylic acid ester, diphenyl phosphite, triphenyl phosphite or hydroxybenzotriazole; Described lubricant be viscosity be greater than 1000pa.s dimethyl-silicon oil lubricant, silicone powder, pentaerythritol stearate, polyethylene wax or Magnesium Stearate in one or both combination; Described anti-dripping agent is that molecular weight is the coated or coated tetrafluoroethylene of phenylethylene ethylene/propenoic acid ester copolymer of 3,000,000-5,000,000 polystyrene.
The present invention with the beneficial effect of prior art is:
1, by adding after adjacent bromstyrol, can effectively reduce poisonous in production process, the pollution of obnoxious flavour to human body and environment in vinylbenzene, make bromide fire retardant can continue to 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.
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 that what in 4, embodiment 5-6, select is that weight percent is 5; What smell inhibitor was selected is diatomite, what smell activator was selected is ethanol, what fire retardant was selected is TDE, fire-retardant association selection of auxiliary be the ANTIMONY TRIOXIDE SB 203 99.8 PCT of particle diameter 4m, antioxidant is phosphorous acid ring the third fat, what photostabilizer was selected is salicylate, and what lubricant was selected is dimethyl-silicon oil lubricant, and the adjacent bromstyrol weight percent of selecting in each embodiment of the application is 3.
For shown in each component according to the form below of embodiment 1-6, set, each component is by the amount premix in table, and by twin screw extruder blend granulation, extrusion temperature is set as 180-200 ℃, and screw speed is 300rpm, 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, does not use adjacent bromstyrol in comparative example, and other component and preparation method are identical.
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:
1) get the sealed container bottle that 20 grams of finished product particles are placed in 1 liter, in 80 ℃ of bakings, after 30 minutes, take out and evaluate smell.
2) finished product particle being injection molded into volume is 1 liter of box with cover, 80 ℃ of hot water of 250ml is injected to the smell of airtight 10 minutes postevaluation water of box, and test result is shown in Table 2.
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 adding adjacent bromstyrol and the impact modifying agent that adds ethylidene norbornene, can make styrene resin composite 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.
Claims (8)
1. anti-aging difficulty is fired a composition of styrene resin, it is characterized in that: said composition comprises following component and weight percentage:
2. a kind of anti-aging difficult combustion composition of styrene resin according to claim 1, is characterized in that: described styrene resin is the styrene 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 styrene resin is 8-13g/10min.
3. a kind of anti-aging difficult combustion composition of styrene resin 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 anti-aging difficult combustion composition of styrene resin 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 anti-aging difficult combustion composition of styrene resin according to claim 1, is characterized in that: described smell activator is that boiling point is low, and volatile small-molecule substance is selected from ethanol, acetic acid, ether, ethyl acetate or water.
6. a kind of anti-aging difficult combustion composition of styrene resin according to claim 1, is characterized in that: described smell inhibitor is selected from the porous silica gel of alkali metal aluminosilicate powder, diatomite or pore.
7. a kind of anti-aging difficulty according to claim 1 is fired composition of styrene resin, it is characterized in that: described bromide fire retardant comprises tetrabromo-bisphenol, TDE, 2,4,6-tribromo triple phenoxyl-1, one or more in 3,5-triazine, ethylidene-(two tetrabromo phthalimide), brominated epoxy oligomer or tetrabromophthalate-(2-ethylhexyl) ester.
8. a kind of anti-aging difficult combustion composition of styrene resin according to claim 1, is characterized in that: described fire-retardant assistance agent comprises one or more in zinc borate, antimonous oxide, antimony peroxide, sodium antimonate or molybdenum oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224882.0A CN103509268A (en) | 2012-06-28 | 2012-06-28 | Anti-aging flame-retardant styrene resin composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224882.0A CN103509268A (en) | 2012-06-28 | 2012-06-28 | Anti-aging flame-retardant styrene resin composition |
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| CN201210224882.0A Pending CN103509268A (en) | 2012-06-28 | 2012-06-28 | Anti-aging flame-retardant styrene resin composition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256399A (en) * | 2015-10-16 | 2016-01-20 | 长城崛起（福建）新材料科技股份公司 | Thermally bonded functional polyamide fiber filament with low melting point |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464851A (en) * | 2010-11-18 | 2012-05-23 | 上海锦湖日丽塑料有限公司 | Low-odor flame-retardant styrene-series resin composition and preparation method thereof |
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2012
- 2012-06-28 CN CN201210224882.0A patent/CN103509268A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464851A (en) * | 2010-11-18 | 2012-05-23 | 上海锦湖日丽塑料有限公司 | Low-odor flame-retardant styrene-series resin composition and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 王斌: "邻溴苯乙烯：拯救溴系阻燃剂", 《万维网》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256399A (en) * | 2015-10-16 | 2016-01-20 | 长城崛起（福建）新材料科技股份公司 | Thermally bonded functional polyamide fiber filament with low melting point |
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Application publication date: 20140115 |