CN102558652A - Method for preparing fireproof aluminum-plastic composite board core by utilizing brucite - Google Patents
Method for preparing fireproof aluminum-plastic composite board core by utilizing brucite Download PDFInfo
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- CN102558652A CN102558652A CN2011104540081A CN201110454008A CN102558652A CN 102558652 A CN102558652 A CN 102558652A CN 2011104540081 A CN2011104540081 A CN 2011104540081A CN 201110454008 A CN201110454008 A CN 201110454008A CN 102558652 A CN102558652 A CN 102558652A
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Abstract
The invention relates to a method for preparing a fireproof aluminum-plastic composite board core by utilizing brucite. According to the method, brucite magnesium hydroxide is modified; and the conventional modification process is improved by using a novel complex modifier, and a new resin formula is added into a formula system. The prepared fireproof aluminum-plastic composite board core has the excellent processing performance, a flame-retardant effect is improved, and mechanical properties of strength, stretching and the like are improved.
Description
Technical field
The present invention relates to a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material, especially the preparation method of low-smoke non-halogen flame-retardant core material.
Background technology
Aluminium-plastic panel belongs to a kind of emerging finishing material, because its numerous excellent properties has obtained development at full speed in recent years, China has become maximum in the world aluminium-plastic panel production, consumption and export State.That widely applies in the market has common and two kinds of composited aluminum and plastic deckings of fire protection flame retarding; The core of common plate belongs to inflammable product; In recent years along with the sternness of fire prevention situation and the raising of safety requirements; Had by the comprehensive substituted trend of fire-proof aluminium plastic composite board, the finishing material of present Highrise buildings must reach the above fire resistance of B level of GB8624-2006 regulation.Discover simultaneously, the loss of life and personal injury in the fire more than 80% be suffocate by a large amount of poison gas that burning produces due to, therefore developing the low-smoke non-halogen flame-retardant product has become common recognition in the industry.
Present low smoke and zero halogen product basically all needs high addition just can reach fire-retardant requirement; Generally more than 50%; The heavy addition of this type inorganic powder material causes mechanical properties such as intensity and the stretching of final composited aluminum and plastic decking to decline to a great extent, and has influenced the working life of product and has buried potential safety hazard.
Summary of the invention
To above-mentioned technical problem, the objective of the invention is the brucite Marinco H in the core material is carried out composite modified processing, thus the fire-proof aluminium plastic composite board of preparation good mechanical performance.
In order to achieve the above object, adopted following technical scheme:
At first the brucite type Marinco H is carried out modification and handles, comprise following two kinds of methods: (1) with surface-modifying agent after the appropriate solvent dilution, under the room temperature condition in the low speed kneader; Stir 30min with magnesium hydrate powder; Be warming up to 80-100 ℃, add above-mentioned various raw material, under the high-speed stirring condition Marinco H is carried out modification and handle by proportioning; Time is 45-70min, and discharging obtains the brucite type Marinco H of modification; (2) Marinco H is joined in the continuous activation modification equipment, the uniform properties-correcting agent of solvent cut is carried out mixed and modified through spray equipment and Marinco H, temperature is controlled at 80-100 ℃.
Described its median size of modification brucite type Marinco H is preferably the 4-6 mu m range at the 1-20 mu m range.
Described properties-correcting agent is silane coupling agent and vinyl silicone oil Compositional type; Dosage is the 0.5-5% of Marinco H weight part; Silane coupling agent wherein is one or several in vinyltriethoxysilane, vinyltrimethoxy silane, vinyl three ('beta '-methoxy oxyethyl group) silane, γ-An Bingjisanyiyangjiguiwan, γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane, the γ-urea propyl-triethoxysilicane etc.
Utilize brucite to prepare the method for fire-proof aluminium plastic composite board core material, the weight proportion of this core material is:
Modification brucite type Marinco H 60-85%,
Retardant synergist 5-15%,
Vilaterm 5-25%,
Elastomer resin 2-20%,
Liquid resin 1-10%,
Other processing aids 2-20%.
Utilize above-mentioned modification brucite type Marinco H to prepare the method for fire-proof aluminium plastic composite board core material, comprise fire-retardant core material granulation, be pressed into technologies such as plate.This fire-retardant core material granulation preparation method all perhaps joins modification brucite type Marinco H, retardant synergist, Vilaterm, elastomer resin, liquid resin, other processing aids according to component to carry out composite in high-speed mixer or the milling machine and plasticizing in batches; Extrude through the screw rod machine, adopt fervent, perhaps air-cooled mode granulation of water-cooled.The temperature of high-speed mixer is 60-110 ℃, and the time is 10-60 minute; The temperature of milling machine is 70-130 ℃, and the time is 20-80 minute.
The described process method that is pressed into plate is single screw rod plate squeezing of vacuum exhaust formula and three roll-in plate technologies.
Described retardant synergist is one or several in zinc borate, ammonium polyphosphate, zinc oxide, red phosphorus, trimeric cyanamide, the Dyhard RU 100.
Described liquid resin is one or several in coumarone indene resin, SJ-30 liquid resin, melamine urea-formaldehyde liquid resin, unsaturated polyester type liquid resin, the terpine resin.
Described other processing aids comprise oxidation inhibitor, UV light absorber, dispersion agent.
Compared with prior art, the present invention has following improvement:
(1) adopt silane and vinyl silicone oil Compositional type properties-correcting agent that the main fire retardant magnesium hydroxide of core material has been carried out the modification processing; Improve the consistency between fire retardant and the resin boundary surface, thereby improved the stripping strength and the tensile property of plastic-aluminum combined board finished product.
(2) added new elastomer resin and liquid resin prescription, compared common PE resin toughness and intensity and be greatly improved.
(3) the fire-proof aluminium plastic composite board core material processing characteristics of the present invention's preparation is good, and flame retardant effect is improved, and mechanical properties such as intensity and stretching are improved.
Embodiment
Below will combine specific embodiments further to illustrate the present invention, and the present invention includes but be not limited to following embodiments, the relevant programme of other any combination of under principle of the present invention, being carried out, change etc. is included in protection scope of the present invention.
Embodiment 1:
Get 1 weight part silane coupling agent KH151; Be dissolved in (ethanol content is 80% volume content) in the 5 parts by weight of ethanol aqueous solution; Magnesium hydrate powder with the vinyl silicone oil of 0.5 weight part, ore method preparation that 100 weight part median sizes are 5 μ m joins in the impeller, adds ammonium polyphosphate 1 weight part simultaneously, zinc borate 6 weight parts; Low whipping speed is 850 r/min; Temperature is modification 40min under 95 ℃ of conditions, and discharging is subsequent use, makes modified magnesium hydroxide flame retardant agent of the present invention.
The tripoly phosphate sodium STPP of getting SJ-30 liquid resin, 0.3 weight part antioxidant 1010,2 weight parts of EVA, 4 weight parts of above-mentioned modified magnesium hydroxide, 10 weight part new LDPE (film grade)s, 8 weight parts of 100 weight parts joins height and stirs and carry out composite in the machine and plasticizing; Temperature is 95 ℃; Time is 45 minutes; Single screw rod is extruded fervent granulation, and extrusion temperature is 145 ℃.
The process method that is pressed into plate can adopt single screw rod plate squeezing of vacuum exhaust formula and three roll-in plate technologies.The expressing technique temperature is 175 ℃, and three roll-in plate temperatures are 90 ℃, and screw slenderness ratio is 35.
Embodiment 2:
Get 1 weight part silane coupling A-172; Be dissolved in (ethanol content is 80% volume content) in the 5 parts by weight of ethanol aqueous solution; Magnesium hydrate powder with the vinyl silicone oil of 0.5 weight part, ore method preparation that 100 weight part median sizes are 5 μ m joins in the impeller, adds ammonium polyphosphate 1 weight part simultaneously, zinc borate 8 weight parts; Low whipping speed is 850 r/min; Temperature is modification 40min under 95 ℃ of conditions, and discharging is subsequent use, makes modified magnesium hydroxide flame retardant agent of the present invention.
The tripoly phosphate sodium STPP of getting terpine resin, 0.3 weight part antioxidant 1010,2 weight parts of EVA, 4 weight parts of above-mentioned modified magnesium hydroxide, 10 weight part new LDPE (film grade)s, 8 weight parts of 100 weight parts joins height and stirs and carry out composite in the machine and plasticizing; Temperature is 95 ℃; Time is 45 minutes; Single screw rod is extruded fervent granulation, and extrusion temperature is 145 ℃.
The process method that is pressed into plate can adopt single screw rod plate squeezing of vacuum exhaust formula and three roll-in plate technologies.The expressing technique temperature is 175 ℃, and three roll-in plate temperatures are 90 ℃, and screw slenderness ratio is 35.
Detected result is seen table 1
Table 1
| Embodiment | Unit | 1 | 2 |
| Tensile strength | Mpa | 12.3 | 12.8 |
| Stripping strength | N/mm | 9.7 | 10.3 |
| Smoke density grade SDR value | / | 32 | 27 |
| Oxygen index | % | 36 | 38 |
Claims (10)
1. method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material, it is characterized in that: the weight proportion of this core material is:
Modification brucite type Marinco H 60-85%,
Retardant synergist 5-15%,
Vilaterm 5-25%,
Elastomer resin 2-20%,
Liquid resin 1-10%,
Other processing aids 2-20%.
2. method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material; It is characterized in that: comprise fire-retardant core material granulation, be pressed into plate; This fire-retardant core material granulation preparation method all perhaps joins modification brucite type Marinco H, retardant synergist, Vilaterm, elastomer resin, liquid resin, other processing aids according to component to carry out composite in high-speed mixer or the milling machine and plasticizing in batches; Extrude through the screw rod machine, adopt fervent, perhaps air-cooled mode granulation of water-cooled.
3. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 2 is characterized in that: the temperature of high-speed mixer is 60-110 ℃, and the time is 10-60 minute; The temperature of milling machine is 70-130 ℃, and the time is 20-80 minute.
4. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 2 is characterized in that: the described process method that is pressed into plate is single screw rod plate squeezing of vacuum exhaust formula and three roll-in plate technologies.
5. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 1 and 2; It is characterized in that: the preparation method of modification brucite type Marinco H comprises: (1) with surface-modifying agent after appropriate solvent dilution; In the low speed kneader, stir 30min under the room temperature condition, be warming up to 80-100 ℃ with magnesium hydrate powder; Add above-mentioned various raw material by proportioning; Under the high-speed stirring condition Marinco H is carried out modification and handle, the time is 45-70min, and discharging obtains the brucite type Marinco H of modification; (2) Marinco H is joined in the continuous activation modification equipment, the uniform properties-correcting agent of solvent cut is carried out mixed and modified through spray equipment and Marinco H, temperature is controlled at 80-100 ℃.
6. the preparation method of modification brucite type Marinco H according to claim 5; It is characterized in that: described properties-correcting agent is silane coupling agent and vinyl silicone oil Compositional type; Dosage is the 0.5-5% of Marinco H weight part; Silane coupling agent wherein is one or several in vinyltriethoxysilane, vinyltrimethoxy silane, vinyl three ('beta '-methoxy oxyethyl group) silane, γ-An Bingjisanyiyangjiguiwan, γ-(2,3-epoxy third oxygen) propyl trimethoxy silicane, the γ-urea propyl-triethoxysilicane etc.
7. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 1 and 2 is characterized in that: described its median size of modification brucite type Marinco H is preferably the 4-6 mu m range at the 1-20 mu m range.
8. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 1 and 2 is characterized in that: described retardant synergist is one or several in zinc borate, ammonium polyphosphate, zinc oxide, red phosphorus, trimeric cyanamide, the Dyhard RU 100.
9. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 1 and 2 is characterized in that: described liquid resin is one or several in coumarone indene resin, SJ-30 liquid resin, melamine urea-formaldehyde liquid resin, unsaturated polyester type liquid resin, the terpine resin.
10. a kind of method of utilizing brucite to prepare the fire-proof aluminium plastic composite board core material according to claim 1 and 2 is characterized in that: described other processing aids comprise oxidation inhibitor, UV light absorber, dispersion agent.
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Cited By (3)
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| CN103012997A (en) * | 2012-12-28 | 2013-04-03 | 大连亚泰科技新材料股份有限公司 | Smoke-suppression magnesium-series halogen-free flame retardant material special for conveying belt and preparation method thereof |
| CN105367826A (en) * | 2015-11-16 | 2016-03-02 | 济南泰星精细化工有限公司 | Flame retardant for rubber floor and preparation method thereof |
| CN110183890A (en) * | 2019-05-06 | 2019-08-30 | 什邡市太丰新型阻燃剂有限责任公司 | A kind of heat-resisting expanding fire-proof paint of high rigidity and preparation method thereof |
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Cited By (3)
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|---|---|---|---|---|
| CN103012997A (en) * | 2012-12-28 | 2013-04-03 | 大连亚泰科技新材料股份有限公司 | Smoke-suppression magnesium-series halogen-free flame retardant material special for conveying belt and preparation method thereof |
| CN105367826A (en) * | 2015-11-16 | 2016-03-02 | 济南泰星精细化工有限公司 | Flame retardant for rubber floor and preparation method thereof |
| CN110183890A (en) * | 2019-05-06 | 2019-08-30 | 什邡市太丰新型阻燃剂有限责任公司 | A kind of heat-resisting expanding fire-proof paint of high rigidity and preparation method thereof |
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Application publication date: 20120711 |