CN102382387B - Composition of halogen-free flame-retardant polystyrene plastic and preparation method thereof - Google Patents
Composition of halogen-free flame-retardant polystyrene plastic and preparation method thereof Download PDFInfo
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- CN102382387B CN102382387B CN 201110343763 CN201110343763A CN102382387B CN 102382387 B CN102382387 B CN 102382387B CN 201110343763 CN201110343763 CN 201110343763 CN 201110343763 A CN201110343763 A CN 201110343763A CN 102382387 B CN102382387 B CN 102382387B
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Abstract
The invention discloses a composition of halogen-free flame-retardant polystyrene plastic and a preparation method thereof. The composition of halogen-free flame-retardant polystyrene plastic comprises 100 parts of polystyrene plastic, 15-30 parts of organic silicon rubber and vulcanized cross linker thereof, 0-100 parts of magnesium hydroxide, 0-20 parts of red phosphorus, 5-15 parts of toughening agent, 0.5 parts of coupling agent and 1-3 parts of processing agent. The polystyrene plastic prepared according to the composition has a halogen-free flame-retardant effect, can effectively reduce the adding amount of the magnesium hydroxide on the premise that the same flame-retardant effect is achieved, so that the mechanical property and the processing performance of the polystyrene plastic are not affected. The prepared halogen-free flame-retardant polystyrene plastic is applied to the environmental protection and flame retardance in the field of electrical appliances.
Description
Technical field
The present invention relates to formula of flame-retardant plastic of appliance field and preparation method thereof, more particularly, the present invention relates to prescription of halogen-free flameproof polystyrene type plastics and preparation method thereof.
Background technology
The polystyrene type plastics are widely used in appliance field, and it has good processing characteristics and electric property, by certain cooperation, have good mechanical property.But, without the very easy ignition of the polystyrene type plastics of fire-retardant finish, its oxygen index is low, catch fire easily, thermal value is large, and when burning send dense black smoke, and the plastics that are applied to the electrical equipment aspect are very high to the flame retardant resistance requirement, and therefore the polystyrene type plastics without fire-retardant finish can not be applied to appliance field substantially.
For reaching fire-retardant purpose, the polystyrene type plastics generally adopt two kinds of methods, and the one, add bromide fire retardant, the polystyrene type flame retardant of plastic be can improve, and physicals and the mechanical property of polystyrene type plastics significantly do not reduced.But studies show that, the first killer that the scene of fire causes casualties is mainly the toxic gas that burning discharges, one of them is bromide fire retardant and discharges highly toxic bromize hydrogen gas when height is warm, so bromide fire retardant is restricted at present just gradually, and, bromide fire retardant can also generate the materials such as hypertoxic De dioxin when height is warm, environment caused extremely seriously influence, therefore the ROHS instruction of European Union strictly limits two kinds of bromide fire retardants, in the world, the non-halogen common recognition that become of fire retardant material.
Another kind method is that interpolation inorganic metal oxyhydroxide is next fire-retardant, reaches the purpose of halogen-free flameproof with this.Adopt inorganic metal oxyhydroxide as fire retardant, when needs reach certain flame retardant effect, its used in amounts will reach more than 60% (weight percent), so the metal hydroxides of volume adds in the polystyrene type plastics, can seriously reduce mechanical property and the processing characteristics of polystyrene type plastics, studies show that 60% magnesium hydroxide adds affiliation and causes the tensile strength of high-impact polystyrene (HIPS) to descend 30%, impact strength decreased 50%.
Summary of the invention
For above problem, the invention provides prescription of a kind of halogen-free flameproof polystyrene type plastics and preparation method thereof, adopt it to make the fire retardant polystyrene class plastics that obtain and do not comprise bromide fire retardant, its metal hydroxides add-on is also lower simultaneously, does not reduce mechanical property and the processing characteristics of polystyrene type plastics.Technical scheme of the present invention is:
A kind of prescription of halogen-free flameproof polystyrene type plastics calculates by weight, and it comprises 100 parts in polystyrene type plastics, 15～30 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 0～100 part of magnesium hydroxide, 0～20 part in red phosphorus, 5～15 parts of toughner, 0.5 part of coupling agent, 1～3 part of processing aid;
Described processing aid calculates by weight, comprises 1～2 part of dispersion agent, 0.5～1 part of lubricant.
Described polystyrene type plastics are a kind of in the segmented copolymer (SBS) of segmented copolymer (SEBS), styrene-butadiene-styrene of polystyrene (PS), high-impact polystyrene (HIPS), styrene-ethylene-butadiene-styrene or any two or more mixture.
Described toughner is a kind of in segmented copolymer (SBS), the segmented copolymer (SEBS) of styrene-ethylene-butadiene-styrene, the esters of acrylic acid series modified dose (ACR) of high glue powder, cis-1,4-polybutadiene rubber, natural rubber, MBS terpolymer (MBS), styrene-butadiene-styrene or any two or more mixture.
Described coupling agent is a kind of or any two or more mixture in silane coupling agent (KH550), titanate coupling agent, aluminate coupling agent, the titanium aluminic acid coupling agent.
Described dispersion agent is the derivative of ethylene bis-fatty acid amides (EBS), ethylene bis-fatty acid amides (EBS), a kind of or any two or more mixture in the diffusing oil.
Described lubricant is a kind of or any two or more mixture in whiteruss, PE wax, oxidation PE wax, spermaceti, stearic acid, butyl stearate, Zinic stearas, the calcium stearate.
Preferably, coupling agent is silane coupling agent (KH550), and dispersion agent is ethylene bis-fatty acid amides (EBS), and lubricant is whiteruss.
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir magnesium hydroxide, red phosphorus, coupling agent, obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator, obtain pellet B; Pellet B is passed through the twin screw extruder extruding pelletization with polystyrene type plastics, toughner, dispersion agent, lubricant, obtain halogen-free flameproof polystyrene type plastics.
Described stirring material A and organo-silicone rubber and vulcanization crosslinking agent thereof are carried out mixing granulator by mill or Banbury mixer.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir polystyrene type plastics, organo-silicone rubber and vulcanization crosslinking agent thereof, magnesium hydroxide, red phosphorus, toughner, coupling agent, processing aid, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
The present invention adopts the mode of organo-silicone rubber, magnesium hydroxide and red phosphorus composite flame-proof, when reaching same flame retardant effect, can significantly reduce the consumption of magnesium hydroxide, thereby do not affect mechanical property and the processing characteristics of fire retardant polystyrene class plastics, realized again the non-halogen fire-retardant of polystyrene type plastics simultaneously.
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Without accompanying drawing.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but the present invention's scope required for protection is not limited to the scope that embodiment explains.
Embodiments of the invention 1: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 15 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 5 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 2 parts of ethylene bis-fatty acid amides (EBS) and 0.5 part of processing aids that forms of whiteruss.
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, carries out mixing granulator with silane coupling agent (KH550) and organo-silicone rubber and vulcanization crosslinking agent thereof by mill, obtains pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Embodiments of the invention 2: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 30 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 100 parts of magnesium hydroxides, 20 parts in red phosphorus, 15 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 0.5 part of whiteruss and 2 parts of processing aids that form of ethylene bis-fatty acid amides (EBS).
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir magnesium hydroxide, red phosphorus, silane coupling agent (KH550), obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator by Banbury mixer, obtain pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, magnesium hydroxide, red phosphorus, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Embodiments of the invention 3: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 22.5 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 70 parts of magnesium hydroxides, 8 parts in red phosphorus, 10 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 0.5 part of whiteruss and 2 parts of processing aids that form of ethylene bis-fatty acid amides (EBS).
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir magnesium hydroxide, red phosphorus, silane coupling agent (KH550), obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator by Banbury mixer, obtain pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, magnesium hydroxide, red phosphorus, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Embodiments of the invention 4: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 15 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 30 parts of magnesium hydroxides, 12 parts in red phosphorus, 10 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 0.5 part of whiteruss and 2 parts of processing aids that form of ethylene bis-fatty acid amides (EBS).
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir magnesium hydroxide, red phosphorus, silane coupling agent (KH550), obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator by Banbury mixer, obtain pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, magnesium hydroxide, red phosphorus, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Embodiments of the invention 5: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 15 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 40 parts of magnesium hydroxides, 10 parts in red phosphorus, 10 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 0.5 part of whiteruss and 2 parts of processing aids that form of ethylene bis-fatty acid amides (EBS).
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir magnesium hydroxide, red phosphorus, silane coupling agent (KH550), obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator by Banbury mixer, obtain pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, magnesium hydroxide, red phosphorus, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Embodiments of the invention 6: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 15 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 30 parts of magnesium hydroxides, 15 parts in red phosphorus, 10 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 0.5 part of whiteruss and 2 parts of processing aids that form of ethylene bis-fatty acid amides (EBS).
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir magnesium hydroxide, red phosphorus, silane coupling agent (KH550), obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator by Banbury mixer, obtain pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, magnesium hydroxide, red phosphorus, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Embodiments of the invention 7: a kind of prescription of halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts of high-impact polystyrenes (HIPS), 15 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 20 parts in red phosphorus, 10 parts of the segmented copolymers of toughner styrene-butadiene-styrene (SBS), 0.5 part of silane coupling agent (KH550) is by 2.5 parts of 0.5 part of whiteruss and 2 parts of processing aids that form of ethylene bis-fatty acid amides (EBS).
A kind of preparation method of halogen-free flameproof polystyrene type plastics according to the parts by weight of above-mentioned prescription, places stirrer to stir red phosphorus, silane coupling agent (KH550), obtains stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator by mill, obtain pellet B; With pellet B with the segmented copolymer (SBS) of high-impact polystyrene (HIPS), styrene-butadiene-styrene, ethylene bis-fatty acid amides (EBS), whiteruss by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
A kind of preparation method of halogen-free flameproof polystyrene type plastics, parts by weight according to above-mentioned prescription, place stirrer to stir segmented copolymer (SBS), silane coupling agent (KH550), ethylene bis-fatty acid amides (EBS), the whiteruss of high-impact polystyrene (HIPS), organo-silicone rubber and vulcanization crosslinking agent thereof, red phosphorus, styrene-butadiene-styrene, obtain stirring material; To stir material by the twin screw extruder extruding pelletization, obtain halogen-free flameproof polystyrene type plastics.
Each embodiment adopts aforesaid method to carry out mixing granulator, then be prepared sample according to " the preparation part 1 General Principle of GB/T 17037.1-1997 thermoplastic material injection moulding sample and the preparation of multi-usage sample and rectangular sample ", again according to the tensile strength of " GB-T 1040-1992 plastic tensile test method " specimen, according to the shock strength of " GB/T 1843-1996 plastics izodtest method " specimen, according to the flame retardant properties of " mensuration Using Horizontal Bridgman Method and the normal beam technique of GB T 2408-2008 Plastics Combustion performance " specimen.The sample test result of each embodiment is as shown in the table.
Annotate: it is 4 grades that FH-4 represent the horizontal firing grade, and FV-0 is represented as vertical combustion, and to test grade be 0 grade, other by that analogy, reaching FV-0, to represent flame retardant effect fine.
Experimental result shows, a kind of halogen-free flameproof polystyrene type of the present invention plastics adopt the mode of organo-silicone rubber, magnesium hydroxide and red phosphorus composite flame-proof that unusual effect is arranged, reaching in the situation of equal flame retardant effect, the add-on of magnesium hydroxide can significantly reduce in its prescription, and then not affecting mechanical property and the processing characteristics of polystyrene type plastics, the polystyrene type plastics also can be realized non-halogen fire-retardant simultaneously.
Claims (2)
1. the preparation method of halogen-free flameproof polystyrene type plastics, the prescription of these halogen-free flameproof polystyrene type plastics, calculate by weight, it comprises 100 parts in polystyrene type plastics, 15～30 parts of organo-silicone rubber and vulcanization crosslinking agent thereof, 0～100 part of magnesium hydroxide, 0～20 part in red phosphorus, 5～15 parts of toughner, 0.5 part of coupling agent, 1～3 part of processing aid; Described processing aid calculates by weight, comprises 1～2 part of dispersion agent, 0.5～1 part of lubricant; It is characterized in that the parts by weight according to the prescription of these halogen-free flameproof polystyrene type plastics place stirrer to stir magnesium hydroxide, red phosphorus, coupling agent, obtain stirring material A; To stir material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carry out mixing granulator, obtain pellet B; Pellet B is passed through the twin screw extruder extruding pelletization with polystyrene type plastics, toughner, dispersion agent, lubricant, obtain halogen-free flameproof polystyrene type plastics.
2. the preparation method of halogen-free flameproof polystyrene type plastics as claimed in claim 1 is characterized in that, stirs material A and organo-silicone rubber and vulcanization crosslinking agent thereof and carries out mixing granulator by mill or Banbury mixer.
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| CN105161202A (en) * | 2015-09-28 | 2015-12-16 | 张翔 | Waterproof high temperature resistance flame retardation cable and manufacturing method thereof |
| CN108276689A (en) * | 2018-01-17 | 2018-07-13 | 天津科创复兴科技咨询有限公司 | A kind of flame retardant plastics and preparation method thereof that performance is good |
| CN114410051B (en) * | 2021-12-28 | 2023-07-11 | 成都金发科技新材料有限公司 | Insulation coating composite material and preparation method and application thereof |
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