CN1221609C - Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof - Google Patents
Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof Download PDFInfo
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- CN1221609C CN1221609C CN 03113674 CN03113674A CN1221609C CN 1221609 C CN1221609 C CN 1221609C CN 03113674 CN03113674 CN 03113674 CN 03113674 A CN03113674 A CN 03113674A CN 1221609 C CN1221609 C CN 1221609C
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Abstract
The present invention relates to a composition containing halogen-free flame retarding high impact polystyrene and a preparation method thereof. The composition containing halogen-free flame retarding high impact polystyrene belongs to the field of a high molecular material. The composition comprises 70 to 90 wt% of high impact polystyrene resin, 5 to 25 wt% of flame retardant and 0.5 to 5 wt% of processing aid. The composition is prepared by adopting a one-step extrusion technology by high-speed premixing dispersion. The composition of the present invention solves the problems of mechanical property reduction, poor stability, environment incompatibility, etc. occurring in the fire retardation of high impact polystyrene resin in the prior art. The composition has a series of outstanding advantages of fire retardancy, environmental protection, weatherability, thermal stability, good mechanical property, easy processing forming, etc. The composition is very suitable for the light-colored household appliance industrial fields of displayers, video recorders, copying machines, facsimile machines, printers, air conditioners, electric refrigerators, etc. having very great development prospects at present.
Description
Technical field
The present invention relates to polymeric material field, particularly a kind of halogen-free flameproof mixture and preparation method thereof.
Background technology
Polystyrene (PS) is to realize industrialization by German I.G method our company (predecessor of BASF AG) in nineteen thirty.As one of five big general-purpose plastics, it has, and formability is good, matter is hard, transparent, rigidity, electrical insulating property, agent of low hygroscopicity, dyeing and advantage such as cheap easily.Generate high-impact polystyrene (HIPS) mixes a small amount of elastomerics in PS after, it has overcome the crisp shortcoming of polystyrene, thereby is widely used in industries such as electronics, automobile, household electrical appliances, instrument, daily necessities, toy.But HIPS burns easily, and weathering resistance is poor, and mobile difference can not be fit to make shortcomings such as surface requirements height and large thin-wall goods after the modification, has limited it and has further promoted the use of.Particularly enter the very promising light household electric appliances field of tool at present such as indicating meter, video recorder, duplicating machine, facsimile recorder, printer, conditioner, refrigerator.(Plastics Technology，1995，41(1)：36～40)
What occur at present much aiming at such use and the halogen-containing flame-retarding HIPS kind ubiquity some shortcomings developed.As adopt the fire-retardant polystyrene mechanical property of halogen-containing compound decabromodiphenyl oxide (being DBDPO), tetrabromo-bisphenol good, flame retarding efficiency height, but weathering resistance is poor, goods in use be subjected to ultraviolet influence easily and produce variable color, problem such as become fragile.And studies show that among the DBDPO in recent years exists and may limit use in several European countries to cancer De dioxin/two furans problems.Therefore in fire-retardant development from now on, must consider the compatibility problem of material and environment.
Adopt effectively flame-retarding HIPS of clorafin, do not have dioxin/two furans problems simultaneously, but its poor stability, its decomposition temperature has only 170 ℃, is lower than the processing temperature of HIPS, and its degradation production hydrogenchloride has serious corrosive nature to mould simultaneously.
Adopt the fire-retardant HIPS of phosphorus system not have dioxin/two furans problems, compliance with environmental protection requirements, but the mechanical property reduction is more.
Summary of the invention
The object of the present invention is to provide a kind of premium properties that keeps the HIPS resin, flame retardant rating reaches the UL94V-0 level, with the no dioxin of good of Environmental compatibility/two furans problems, ultraviolet light and thermal ageing are strong, Heat stability is good, mobile high, product surface gloss, the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture that practical value is high.
Another object of the present invention is to provide the preparation method of above-mentioned mixture.
Noryl halogen-free flame-proof highly anti-flush polyphenylacetylene/the polyphenyl ether composite that contains of the present invention, comprise following component: high-impact polystyrene resin resin 70～90 weight %, fire retardant 5～25 weight %, processing aid 0.5～5 weight %, can also contain retardant synergist 1～6 weight %, impact modifying agent 2～15 weight %, oxidation inhibitor 0.2～0.6 weight %, coupling agent 0.2～1 weight %.
Fire retardant in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention is that micro encapsulation multilayer encapsulated red phosphorus, titanium dioxide multilayer coat one or more the mixture in grey red phosphorus, phosphorous acid lipid, the phosphoric acid lipid.More than several based flame retardants very high thermostability and not halogen-containing is all arranged, therefore can obtain very good fire-retardant and processing effect.
Retardant synergist in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention is one or more the mixture in melamine salt, zinc borate, the magnesium hydroxide, adopts multiple retardant synergist recombination energy to make flame retardant effect more remarkable.
The adding of the impact modifying agent in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention mainly is to prevent that the adding of fire retardant from making material mechanical performance descend.The selection of impact modifying agent must consider that itself and resin should have good consistency, and impact modifying agent will form suitable phase structure and could more effectively improve toughening effect in material matrix simultaneously.The impact modifying agent that uses among the present invention is one or more mixture of styrene isoprene styrene block copolymer (SIS) (SIS), styrene-butadiene-styrene block copolymer (SBS), Hydrogenated SBS, styrene-acrylonitrile copolymer acid butyl ester binary graft modification ethylene-propylene rubber(EPR) (EPDM-g-St).
Oxidation inhibitor in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention is phenols, phosphorous acid esters, contain the thioesters class, one or more mixture of metal passivator.
The phenolic antioxidant that wherein is suitable for body series has 2,4, and 6-BHT, E-330,2246,1010, phosphorous acid esters have TNP, 168, and containing the thioesters class is DLTP, DSTP, and metal passivator has GI-09-367, MD1025, OABH.Because phosphorous acid esters can be eliminated equally by ultraviolet ray and produce the peroxidation group, thereby also play the effect that prevents photoaging.
Coupling agent in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention is one or more the mixture in silane coupling agent, titanate coupling agent, the aluminate coupling agent.As KH550, KH570, A-143, A-186, sulfonyl azide silane, NDZ-101, OL-1618.Coupling agent has improved the consistency between fire retardant and resin, the plasticized modifier, strengthens the bounding force at interface between them, improves the mechanical property of material.
Processing aid in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention is one or more the mixture in fatty acid amide, fatty acid mixture, paraffin, white mineral oil, the alpha-methyl styrene.Add the dispersiveness that can effectively improve each component man-hour, reduce plastic melt and the bonding strength of metallic surface and the internal friction of plastic melt, the weld mark that occurs in the product when helping solving injection moulding, surface luster is poor, problems such as demoulding difficulty
Its preparation method in the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention is to adopt expressing technique of high speed pre-mixing and dispersing.With high-impact polystyrene resin, fire retardant, retardant synergist, impact modifying agent, oxidation inhibitor, coupling agent and processing aid after the high-speed mixer dispersing and mixing, by the twin screw extruder fusion, mixing, extrude, cool off, dry, pelletizing and packing.Each subregion temperature of barrel should remain between 160 ℃～250 ℃, and the twin screw extruder length-to-diameter ratio is 32～40, and screw speed is 300～500 rev/mins.
The benefit of an expressing technique like this is to make flame-retardant system obtain well to disperse, and the constant product quality of gained.
Compare with traditional flame-proof highly anti-flush polyphenylacetylene resin complexes, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention has adopted novel flame retardant composites system, select new impact modifying agent for use, optimized light, heat, oxygen aging stabilising system and processing aid system.That the halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of gained has is fire-retardant, environmental protection, weather-proof, thermally-stabilised, a series of outstanding advantages such as mechanical property is good, easy machine-shaping, is very suitable for the very promising light household electric appliances field of tool at present such as indicating meter, video recorder, duplicating machine, facsimile recorder, printer, conditioner, refrigerator.
Embodiment
Embodiment 1
HIPS is adopted in the preparation of halogen-free flame-proof highly anti-flush polyphenylacetylene mixture of the present invention, and fire retardant is a micro encapsulation red phosphorus, and impact modifying agent is styrene/acrylic butyl ester binary graft modification EPDM (EPDM-g-St/BA).
Because partial cross-linked EPDM has very low second-order transition temperature, higher intensity.Styrene/acrylic butyl ester multipolymer in the grafting not only has good consistency with HIPS, and because the existence of butyl acrylate makes grafted chain have good kindliness.These characteristics make EPDM-g-St/BA that HIPS is had good toughening effect, can keep the rigidity of HIPS again.
With high-impact polystyrene resin, impact modifying agent, fire retardant, retardant synergist, coupling agent oxidation inhibitor and processing aid behind thorough mixing under the high-speed stirring by the twin screw extruder fusion, mixing, extrude, cool off, dry, pelletizing and packing.Each subregion temperature of barrel should remain between 200 ℃
Preparation method's of the present invention twin screw extruder length-to-diameter ratio is 35, and screw speed is 450 rev/mins.
The mixture of preparation is injection molded into the standard batten of testing usefulness by standard size, and by China's national standard and U.S. UL standard testing, as shown in table 2, Example formulations table and composite properties detected result are as shown in table 1 respectively for the physicals among the embodiment.
Table 1
| Component | 1 | 2 | 3 | 4 | 5* |
| Resin HIPS microencapsulation red phosphorus (phosphorous 85%) fire retardant titanium dioxide multilayer coating structure grey red phosphorus (phosphorous 33%) triphenyl phosphate retardant synergist magnesium hydroxide impact modifying agent EPDM-g-St/BA coupling agent Silane coupling agent KH550 antioxidant 1010 168 stearmide processing aid calcium stearate butyl stearates | 100 | 77.1 12 6 3 0.5 0.2 0.2 0.5 0.25 0.25 | 66.1 20 2 7 3 0.5 0.2 0.2 0.5 0.25 0.25 | 68.1 10 10 7 3 0.5 0.2 0.2 0.5 0.25 0.25 | 63.1 25 7 3 0.5 0.2 0.2 0.5 0.25 0.25 |
| Physical property melt index hot strength elongation at break Izod notched Izod impact strength heat distortion temperature bending modulus bending strength flammability (1.6mm) | 2.7 27 40 11 85 2300 39 HB | 5.0 25 30 8 86 2100 35 V-0 | 4.0 23 27 7.5 87 2100 32 V-1 | 6.0 23 26 7.8 80 2100 31 V-2 | 3.8 24 27 7.6 87 2100 32 V-0 |
Table 2
| Physicals | Unit | Testing method |
| Melt index hot strength elongation at break Izod notched Izod impact strength heat distortion temperature bending modulus bending strength flammability Izod notched Izod impact strength | g/10min MPa ％ KJ/m 2 ℃ MPa MPa KJ/m 2 | GB3682 GB1040 GB1040 GB1843 GB1634 GB9341 GB9341 UL94 GB1843 |
Claims (10)
1, a kind of halogen-free flame-proof highly anti-flush polyphenylacetylene mixture comprises following component: high-impact polystyrene resin 70～90 weight %, fire retardant 5～25 weight %, processing aid 0.5～5 weight %; Wherein said fire retardant is that micro encapsulation multilayer encapsulated red phosphorus, titanium dioxide multilayer coat one or more the mixture in grey red phosphorus, phosphorous acid lipid, the phosphoric acid lipid; Described processing aid is one or more the mixture in fatty acid amide, fatty acid mixture, paraffin, white mineral oil, the alpha-methyl styrene.
2, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 1 is characterized in that containing retardant synergist 1～6 weight %.
3, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 1 and 2 is characterized in that containing impact modifying agent 2～15 weight %.
4, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 3 is characterized in that containing oxidation inhibitor 0.2～0.6 weight %.
5, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 4 is characterized in that containing coupling agent 0.2～1 weight %.
6, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 2, wherein said retardant synergist are one or more the mixture in melamine salt, zinc borate, the magnesium hydroxide.
7, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 3, wherein said impact modifying agent are one or more the mixture in styrene isoprene styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene-styrene block copolymers, the styrene-acrylonitrile copolymer acid butyl ester binary graft modification ethylene-propylene rubber(EPR).
8, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 4, wherein oxidation inhibitor is phenols, phosphorous acid esters, contains one or more the mixture in thioesters class, the metal passivator.
9, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 5, wherein said coupling agent are one or more the mixture in silane coupling agent, titanate coupling agent, the aluminate coupling agent.
10, halogen-free flame-proof highly anti-flush polyphenylacetylene mixture according to claim 5, its preparation method are to adopt expressing technique of high speed pre-mixing and dispersing; With high-impact polystyrene resin, fire retardant, retardant synergist, impact modifying agent, oxidation inhibitor, coupling agent and processing aid after the high-speed mixer dispersing and mixing, by the twin screw extruder fusion, mixing, extrude, cool off, dry, pelletizing and packing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03113674 CN1221609C (en) | 2003-01-27 | 2003-01-27 | Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof |
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| CN 03113674 CN1221609C (en) | 2003-01-27 | 2003-01-27 | Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof |
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| CN1221609C true CN1221609C (en) | 2005-10-05 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353463B (en) * | 2007-07-24 | 2011-08-10 | 上海金发科技发展有限公司 | Flame-retardant polystyrene resin complex containing brominated triazine and preparation thereof |
| CN101372548B (en) * | 2008-10-15 | 2011-01-19 | 珠海市远康企业有限公司 | High-impact polystyrene blend and preparation thereof |
| CN101914258B (en) * | 2010-08-24 | 2012-11-07 | 王崇高 | Production formula and preparation method for halogen-free flame-retarding HIPS resin |
| CN102408641B (en) * | 2011-08-05 | 2015-10-21 | 大连瑞贤达塑胶有限公司 | A kind of moulding process of plastic material |
| CN102731888B (en) * | 2012-05-22 | 2014-06-18 | 宁波一舟塑胶有限公司 | Multilayer coated red phosphorus low-smoke halogen-free flame-retardant polyolefin cable sheath material and preparation method thereof |
| CN103509267A (en) * | 2012-06-28 | 2014-01-15 | 华利保模具（宁波）有限公司 | Halogen-free flame-retardant polystyrene resin composition |
| CN105694331A (en) * | 2013-07-30 | 2016-06-22 | 江苏理工学院 | Method for preparing halogen-free flame-retardant high-impact polystyrene |
| CN103613875B (en) * | 2013-11-21 | 2016-05-25 | 四川塑金科技有限公司 | Salt is washed and is sunk to the bottom the modification of PS feed back and produce fire-retardant PS and preparation method thereof |
| CN104312071A (en) * | 2014-10-20 | 2015-01-28 | 金宝丽科技（苏州）有限公司 | Preparation method of high-performance flame-retardant HIPS (high impact polystyrene) composite material |
| CN106633580A (en) * | 2016-10-17 | 2017-05-10 | 珠海格力电器股份有限公司 | HIPS (high impact polystyrene) composite material with high heat resistance and high flame resistance grade as well as preparation method and application of HIPS composite material |
| CN111154215A (en) * | 2020-02-18 | 2020-05-15 | 汕头市华麟塑化有限公司 | Efficient halogen-free flame-retardant HIPS (high impact polystyrene) composite material and preparation method thereof |
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Denomination of invention: Halide-free flame-resistant high anti-impact polystyrene complex and method for production thereof Effective date of registration: 20100414 Granted publication date: 20051005 Pledgee: Industrial Commercial Bank of China Ltd. Guangzhou third sub branch Pledgor: KINGFA SCI. & TECH. Co.,Ltd.|SHANGHAI KINGFA SCI.,&TECH. Co.,Ltd. Registration number: 2010990000735 |
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