CN105462038A - Halogen-free high inflaming retarding core material for steel composite plate and preparing method thereof - Google Patents
Halogen-free high inflaming retarding core material for steel composite plate and preparing method thereof Download PDFInfo
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- CN105462038A CN105462038A CN201510977399.3A CN201510977399A CN105462038A CN 105462038 A CN105462038 A CN 105462038A CN 201510977399 A CN201510977399 A CN 201510977399A CN 105462038 A CN105462038 A CN 105462038A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to a halogen-free high inflaming retarding core material for a steel composite plate and a preparing method thereof. The core material is prepared from the following raw materials in parts by weight: 100 parts of base resin, 280 parts of MgOH halogen-free inflaming retarding agent, 20 parts of inflaming retarding synergist, 3-10 parts of compatilizer and 0.5-2.0 parts of antioxidant. The preparing method comprises: selecting the raw materials according to the proportions, mixing the raw materials in a kneading machine at a high speed of 1000 rpm for 10-20min, then stirring at a low speed of 500 rpm for 5-10min, then discharging, and extruding by a conical intermeshing co-rotating twin screw extruder with a draw ratio of 48:1 into a halogen-free high inflaming retarding core plate of 3.4mm thick. Each combustion performance index of the high inflaming retarding composite steel plate prepared by using the core material formula achieves GB8624-2012B1(B-s1d0,t0) grade requirements, a combustion value of the core material is up to 10.6-11.7MJ/Kg, a peeling strength between the core material and a roller of a stainless steel plate reaches 150N.mm/mm, and a thermal deformation temperature reaches 117 DEG C (1.82MPa).
Description
Technical field
The invention belongs to Material Field, be specifically related to a kind of steel composite board halogen-free high flame-retardant core material and preparation method thereof.
Background technology
Polythene material light weight, nontoxic, there is excellent electrical insulation capability, corrosion resistance nature, and also cheap, forming process is easy, and Application Areas is extensive.But poly flame retardant properties is poor, and oxygen index is low, combustion heat value is up to 45MJ/KG, and easy ignition also has melting dropping to produce, and makes it be restricted in the applications that flame-retardancy requirements is high.
The fire-retardant point of fire-retardant class large with halogen-free flameproof two of halogen system, halogenated flame retardant flame retardant effect is fine, but because Halogen fire retardant material amount of being fuming when burning is large, and the hydrogen halide discharged can make people suffocate, the moisture that this gas easily absorbs in air forms haloid acid, there is very strong corrosive nature, particularly bromide fire retardant and can produce poisonous carcinogens when burning.So the secondary disaster that halogenated flame retardant causes is subject to global concern.Therefore the research and development of bittern-free flame-proof material especially halogen-free high flame-retardant material are the developing direction of domestic and international flame-retarding environmental friendly material.
Halogen-free high flame-retardant polyethylene core material is the fire-retardant cleaning material of a kind of environmentally friendly (Nonpoisonous, non-environmental-pollution) and resource-conserving (can save basis more than 70% resin).B1 level high-fire-resistance composite metal plate is the building decoration Novel fireproof matrix material that state key encourages research and development, can substitute with polyethylene is extrude the B2 level conventional aluminium plastic clad plate of composite core material and metal fine aluminium (steel) plate etc., belong to energy-conserving and environment-protective Flameproof composite material, there is wide market development prospect.According to the GB50022-2014 recently issued and implemented " Code for fire protection design of buildings " requirement, the GB/T17748-2015 " building curtain wall composited aluminum and plastic decking " of up-to-date revision requires: B1 level high-fire-resistance metal composite board core material combustion heat value must be less than 12.0MJ/Kg.This B1 level high-fire-resistance composite metal plate is particularly suitable for the in-built of the high public place priority project of fire protection requirement and high-rise public building decoration of exterior wall material, as elevator interior panel, high-grade Business Building etc.
Metal clean steel, aluminium sheet fluting bending poor toughness, heat-insulating sound-insulating weak effect in prior art; The combustion heat value higher (being greater than 15.0-45.0MJ/Kg) of existing B2 level composited steel and plastic decking and common B1 level flame retardant type aluminium-plastic composite panel core material.
Summary of the invention
The object of this invention is to provide a kind of steel composite board halogen-free high flame-retardant core material and preparation method thereof, apply high flame retardant steel composite board prepared by core material formula of the present invention, its combustionproperty indices all reaches GB8624-2012B1 (B-s1, d0, t0) level requirement, especially the combustion heat value of core reaches 10.6-11.7MJ/Kg (lower than 12MJ/Kg), the climbing drum peel strength of core and stainless steel plate reaches 150Nmm/mm, heat-drawn wire reaches 117 degree (1.82MPa), and cost is lower; The fill a prescription core material of preparation of the present invention has excellent flame retardant properties and physical and mechanical property, can meet the combustionproperty of composited steel and plastic decking and extrude hot combined producing tech requirement continuously.Solve a difficult problem for existing metal clean steel, aluminium sheet fluting bending poor toughness, heat-insulating sound-insulating weak effect; Also solve the defect of the combustion heat value higher (being greater than 15.0-45.0MJ/Kg) of existing B2 level composited steel and plastic decking and common B1 level flame retardant type aluminium-plastic composite panel core material simultaneously.
The object of the invention is to be achieved through the following technical solutions:
A kind of steel composite board halogen-free high flame-retardant core material, comprises the raw material of following mass fraction: the oxidation inhibitor of the matrix resin of 100 parts, the magnesium hydrate halogen-free fire retardant of 280 parts, the fire retarding synergist of 20 parts, the compatilizer of 3-10 part and 0.5-2.0 part;
Wherein, described basic resin is made up of the high density polyethylene(HDPE) of 50-80 part and the ethylene-vinyl acetate copolymer of 20-50 part;
Wherein, described fire retarding synergist is made up of the expansible black lead of 5-15 part and the organosilicon micro mist of 5-15 part.
Another preferred scheme, described steel composite board halogen-free high flame-retardant core material, comprises the raw material of following mass fraction: the oxidation inhibitor of the matrix resin of 100 parts, the magnesium hydrate halogen-free fire retardant of 280 parts, the fire retarding synergist of 20 parts, the compatilizer of 5-8 part and 0.5-2.0 part;
Wherein, described basic resin is made up of the high density polyethylene(HDPE) of 50-75 part and the ethylene-vinyl acetate copolymer of 25-50 part;
Wherein, described fire retarding synergist is made up of the expansible black lead of 5-15 part and the organosilicon micro mist of 5-15 part.
Further, the trade mark of described high density polyethylene(HDPE) is DMDA8008.
Further, described ethylene-vinyl acetate copolymer (EVA) to be vinyl acetate content be 28.0% EVA multipolymer.
Further, described magnesium hydroxide is the inorganic combustion inhibitor of 10 microns through KH-560 surface activation process, D97 particle diameter.
Further, described expansible black lead is expansion multiplying power is 250-300ml/g, carbon content is the expansible black lead of 99.5%.
Further, the high molecular weight silicone compound of described organosilicon micro mist to be the trade mark be DOWCORNINGR4-7081.
Further, described compatilizer is maleic anhydride grafted ethene-methyl acrylate copolymer, and wherein the content of maleic anhydride is 3-5%.
Further, described oxidation inhibitor is the mixture of 1010/168 (1/1).
The preparation method of described steel composite board halogen-free high flame-retardant core material, comprise the following steps: choose raw material by proportioning of the present invention, first by raw material in kneader with the high-speed mixing 10-20 minute of 1000 revs/min, then with discharging after the stirring at low speed 5-10 of 500 revs/min minute, the thicker halogen-free high flame-retardant central layer of 3.4mm is extruded into through the conical parallel dual-screw extruding machine that length-to-diameter ratio is 48:1; The stainless steel faceplate thick with 0.3mm/0.3mm/stainless steel backboard to be composited steel composite board through continuous hot-press compounding machine.
In order to make material of the present invention have excellent flame retardant properties and physical and mechanical property, the combustionproperty of composited steel and plastic decking can be met and extrude hot combined producing tech continuously and require: selecting the trade mark of high density polyethylene(HDPE) to be: the main purpose of DMDA8008 is heat-drawn wire and the mobility of raising material; Vinyl acetate content be 28.0% EVA multipolymer be improve the plasticizing processing characteristics of material; Magnesium hydroxide is main flame retardant; It is fire-retardant that expanded graphite and organosilicon micro mist are used for synergistic together with magnesium hydroxide, promotes flame retarding efficiency and become carbon barrier property; Maleic anhydride grafted ethene-methyl acrylate copolymer mainly improves the interface compatibility of matrix resin and aluminium hydroxide and expanded graphite; Oxidation inhibitor mainly plays the resist oxygen aging effect improving thermostability and material.
Beneficial effect of the present invention is: have excellent flame retardant properties and physical and mechanical property, can meet the combustionproperty of composited steel and plastic decking and extrude hot combined producing tech requirement continuously.Apply high flame retardant steel composite board prepared by core material formula of the present invention, its combustionproperty indices all reaches GB8624-2012B1 (B-s1, d0, t0) level requirement, especially the combustion heat value of core reaches 10.6-11.7MJ/Kg, and the climbing drum peel strength of core and stainless steel plate reaches 150Nmm/mm, heat-drawn wire reaches 117 degree (1.82MPa).
Embodiment
Below by following examples, the present invention is described in further detail:
Materials Example 1-9 of the present invention with the component formula of parts by weight in table 1.
Table 1
Material prepared by the present invention adopts GB/T2406 to test oxygen index, GB/T14402 test combustion heat value in table 2.
Table 2
| Sequence number | Project | Combustion heat value (MJ/Kg) | Oxygen index % |
| 1 | Example 1 | 10.6 | 55 |
| 2 | Example 2 | 10.9 | 53 |
| 3 | Example 3 | 11.0 | 51 |
| 4 | Example 4 | 11.2 | 49 |
| 5 | Example 5 | 11.2 | 48.5 |
| 6 | Example 6 | 11.4 | 47 |
| 7 | Example 7 | 11.6 | 46.5 |
| 8 | Example 8 | 11.6 | 46 |
| 9 | Example 9 | 11.7 | 45 |
The step of preparation process of material of the present invention is as follows:
Embodiment 1:
1, choose raw material by proportioning of the present invention, first by raw material in kneader with the high-speed mixing 15 minutes of 1000 revs/min, then with stirring at low speed discharging after 5 minutes of 500 revs/min;
2, again through conical parallel dual-screw extruding machine (manufacturer: Zhoushan Tong Fa plastics machinery company limited model: after 75/3600) being extruded into the thick fire-retardant central layer of 3.4mm that length-to-diameter ratio is 48:1;
3, thick with 0.3mm/0.3mm again stainless steel faceplate/stainless steel backboard is composited through continuous hot-press compounding machine (Shanghai Jinhu County JH-1500).
Embodiment 2:
1, choose raw material by proportioning of the present invention, first by raw material in kneader with the high-speed mixing 10 minutes of 1000 revs/min, then with stirring at low speed discharging after 10 minutes of 500 revs/min;
2, again through conical parallel dual-screw extruding machine (manufacturer: Zhoushan Tong Fa plastics machinery company limited model: after 75/3600) being extruded into the thick fire-retardant central layer of 3.4mm that length-to-diameter ratio is 48:1;
3, thick with 0.3mm/0.3mm again stainless steel faceplate/stainless steel backboard is composited through continuous hot-press compounding machine (Shanghai Jinhu County JH-1500).
Embodiment 3:
1, choose raw material by proportioning of the present invention, first by raw material in kneader with the high-speed mixing 20 minutes of 1000 revs/min, then with stirring at low speed discharging after 5 minutes of 500 revs/min;
2, again through conical parallel dual-screw extruding machine (manufacturer: Zhoushan Tong Fa plastics machinery company limited model: after 75/3600) being extruded into the thick fire-retardant central layer of 3.4mm that length-to-diameter ratio is 48:1;
3, thick with 0.3mm/0.3mm again stainless steel faceplate/stainless steel backboard is composited through continuous hot-press compounding machine (Shanghai Jinhu County JH-1500).
Above-mentionedly only several specific embodiments in the present invention to be illustrated, but can not as protection scope of the present invention, every according to the change of the equivalence done by design spirit in the present invention or modify, all should think and fall into protection scope of the present invention.
Claims (10)
1. a steel composite board halogen-free high flame-retardant core material, it is characterized in that, comprise the raw material of following mass fraction: the oxidation inhibitor of the matrix resin of 100 parts, the magnesium hydrate halogen-free fire retardant of 280 parts, the fire retarding synergist of 20 parts, the compatilizer of 3-10 part and 0.5-2.0 part;
Wherein, described basic resin is made up of the high density polyethylene(HDPE) of 50-80 part and the ethylene-vinyl acetate copolymer of 20-50 part;
Wherein, described fire retarding synergist is made up of the expansible black lead of 5-15 part and the organosilicon micro mist of 5-15 part.
2. steel composite board halogen-free high flame-retardant core material according to claim 1, it is characterized in that, comprise the raw material of following mass fraction: the oxidation inhibitor of the matrix resin of 100 parts, the magnesium hydrate halogen-free fire retardant of 280 parts, the fire retarding synergist of 20 parts, the compatilizer of 5-8 part and 0.5-2.0 part;
Wherein, described basic resin is made up of the high density polyethylene(HDPE) of 50-75 part and the ethylene-vinyl acetate copolymer of 25-50 part;
Wherein, described fire retarding synergist is made up of the expansible black lead of 5-15 part and the organosilicon micro mist of 5-15 part.
3. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, is characterized in that: the trade mark of described high density polyethylene(HDPE) is DMDA8008.
4. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, is characterized in that: described ethylene-vinyl acetate copolymer to be vinyl acetate content be 28.0% EVA multipolymer.
5. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, is characterized in that: described magnesium hydroxide is the inorganic combustion inhibitor of 10 microns through KH-560 surface activation process, D97 particle diameter.
6. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, is characterized in that: described expansible black lead is expansion multiplying power is 250-300ml/g, carbon content is the expansible black lead of 99.5%.
7. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, is characterized in that: the high molecular weight silicone compound of described organosilicon micro mist to be the trade mark be DOWCORNINGR4-7081.
8. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, it is characterized in that: described compatilizer is maleic anhydride grafted ethene-methyl acrylate copolymer, wherein the content of maleic anhydride is 3-5%.
9. steel composite board halogen-free high flame-retardant core material according to claim 1 and 2, is characterized in that: described oxidation inhibitor is the mixture of 1010/168 (1/1).
10. the preparation method of steel composite board halogen-free high flame-retardant core material according to claim 1, it is characterized in that, comprise the following steps: choose raw material by proportioning according to claim 1, first by raw material in kneader with the high-speed mixing 10-20 minute of 1000 revs/min, then with discharging after the stirring at low speed 5-10 of 500 revs/min minute, the thicker halogen-free high flame-retardant central layer of 3.4mm is extruded into through the conical parallel dual-screw extruding machine that length-to-diameter ratio is 48:1; The stainless steel faceplate thick with 0.3mm/0.3mm/stainless steel backboard to be composited steel composite board through continuous hot-press compounding machine.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254022A (en) * | 2019-06-10 | 2019-09-20 | 江苏华美特金属科技有限公司 | A kind of production method with fine copper plate and fire prevention core material preparation fire prevention copper composite plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465616A (en) * | 2002-06-21 | 2004-01-07 | 中国科学院化学研究所 | Magnetsium hydroxide halogen-free polythene flame redardant composite material |
| CN101012326A (en) * | 2007-02-08 | 2007-08-08 | 北京化工大学 | Halogen-free flame-proof cable sheath material |
| CN101629007A (en) * | 2009-08-27 | 2010-01-20 | 华南理工大学 | Low smoke non-halogen flame retardant thermoplastic elastomer composite material and preparation method thereof |
| CN102276899A (en) * | 2011-07-18 | 2011-12-14 | 武汉钢铁(集团)公司 | Magnesium hydroxide flame-retardant composite material and preparation method thereof |
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- 2015-12-23 CN CN201510977399.3A patent/CN105462038B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1465616A (en) * | 2002-06-21 | 2004-01-07 | 中国科学院化学研究所 | Magnetsium hydroxide halogen-free polythene flame redardant composite material |
| CN101012326A (en) * | 2007-02-08 | 2007-08-08 | 北京化工大学 | Halogen-free flame-proof cable sheath material |
| CN101629007A (en) * | 2009-08-27 | 2010-01-20 | 华南理工大学 | Low smoke non-halogen flame retardant thermoplastic elastomer composite material and preparation method thereof |
| CN102276899A (en) * | 2011-07-18 | 2011-12-14 | 武汉钢铁(集团)公司 | Magnesium hydroxide flame-retardant composite material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 康永林: "《现代汽车板工艺及成形理论与技术》", 28 February 2009, 冶金工业出版社 * |
| 彭治汉: "《材料阻燃新技术新品种》", 30 April 2004, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254022A (en) * | 2019-06-10 | 2019-09-20 | 江苏华美特金属科技有限公司 | A kind of production method with fine copper plate and fire prevention core material preparation fire prevention copper composite plate |
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