CN104893085A - Soft halogen-free flame-retardant insulation material for home appliances and preparation method thereof - Google Patents

Soft halogen-free flame-retardant insulation material for home appliances and preparation method thereof Download PDF

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Publication number
CN104893085A
CN104893085A CN201510285597.3A CN201510285597A CN104893085A CN 104893085 A CN104893085 A CN 104893085A CN 201510285597 A CN201510285597 A CN 201510285597A CN 104893085 A CN104893085 A CN 104893085A
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China
Prior art keywords
parts
insulation
resin
free flame
speed
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Pending
Application number
CN201510285597.3A
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Chinese (zh)
Inventor
王喜东
肖春华
郜海文
周建军
张君君
张爱华
陈玲
夏含芳
程多情
张燕
琚一雄
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Hefei Deren Electronic Devices Co Ltd
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Hefei Deren Electronic Devices Co Ltd
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Priority to CN201510285597.3A priority Critical patent/CN104893085A/en
Publication of CN104893085A publication Critical patent/CN104893085A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0846Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853Vinylacetate
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/22Halogen free composition
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/066LDPE (radical process)

Abstract

The invention relates to a soft halogen-free flame-retardant insulation material for home appliances, which is prepared from the following raw materials in parts by weight: 10-15 parts of low-density polyethylene resin, 0.3-0.4 part of vinyltrimethoxy silane, 0.04-0.08 part of dicumyl peroxide, 0.01-0.02 part of di-n-butyl tin laurate, 50-60 parts of magnesium hydroxide, 60-65 parts of EVA (ethylene-vinyl acetate), 20-23 parts of high-density polyethylene resin, 7-8 parts of microcapsulated red phosphorus, 3-4 parts of ethylene propylene diene monomer rubber, 3-4 parts of vinyl chloride-vinyl acetate resin and 2-3 parts of titanium dioxide nanotube. The insulation material has the advantages of high softness, favorable toughness and excellent mechanical properties. The vinyl chloride-vinyl acetate resin and ethylene propylene diene monomer rubber enhances the toughness and softness of the insulation material. The titanium dioxide nanotube enhances the aging resistance and mechanical properties of the insulation material. The insulation material is suitable for wiring harnesses of refrigerators, air conditioners and other home appliances, and has the characteristics of long service life and high ambient temperature resistance grade.

Description

A kind of household electrical appliances soft halogen-free flame retardant insulation material and preparation method thereof
Technical field
The present invention relates to CABLE MATERIALS field, particularly relate to a kind of household electrical appliances soft halogen-free flame retardant insulation material and preparation method thereof.
Background technology
The halogen-free flameproof of CABLE MATERIALS is the focus of CABLE MATERIALS flame retardant area research in recent years, but because halogen-free flame retardants flame retarding efficiency is low, with matrix poor compatibility, the therefore problem of non-halogen flame-retardant cable ubiquity poor mechanical property, makes non-halogen flame-retardant cable be difficult to apply.Ethylene-vinyl acetate copolymer (EVA) is the new lover of electric wire plastic applications, it has good flexibility, shock-resistance, environmental stress crack resistance in wide temperature range, as CABLE MATERIALS matrix, halogen-free flameproof is carried out to it using EVA, and the mechanical property improving fire-retardant rear CABLE MATERIALS makes it meet the technical property requirements of low-smoke zero-halogen flame-retardant cable sheath, for applying of fireproofing cable material without halide, there is very large value.
As halogen-free flame retardants, halogen-free flameproof is carried out to EVA using composite to 50 parts of magnesium hydroxides (MH) and 8 parts of microencapsulated powder oil (RP), the vertical combustion rank of the halogen-free flame-retardant composite material obtained reaches FV-0 level, oxygen index is more than 30%, but the mechanical property of matrix material is poor, especially the numerical difference required in tensile strength and elongation at break and YD/T1113-2001 standard, apart from comparatively large, can not meet service requirements.Therefore the performance of CABLE MATERIALS is required further improvement.
At present, the CABLE MATERIALS on market also also exists not damage resistant, not fold resistant, and there is white impression, loss of properties on aging in afterwards folding or collision rift cable surface, water-fast, oil resistant, the problem such as wear no resistance, and affects security and work-ing life that household electrical appliances use, require further improvement.
Summary of the invention
The object of the present invention is to provide the soft halogen-free flame retardant insulation material of a kind of household electrical appliances, this Insulation Material pliability is high, good toughness, excellent in mechanical performance, and ageing resistance is good, and extremely low cold tolerance, security is good.
Technical scheme of the present invention is as follows:
The soft halogen-free flame retardant insulation material of a kind of household electrical appliances, is characterized in that being made up of the raw material of following weight part: ldpe resin 10-15, vinyltrimethoxy silane 0.3-0.4, dicumyl peroxide 0.04-0.08, di-n-butyltin dilaurate 0.01-0.02, magnesium hydroxide 50-60, EVA60-65, high-density polyethylene resin 20-23, microencapsulated powder oil 7-8, terpolymer EP rubber 3-4, vinyl chloride-vinyl acetate resin 3-4, titania nanotube 2-3.
The described household electrical appliances production method of soft halogen-free flame retardant insulation material, is characterized in that:
(1) ldpe resin, vinyltrimethoxy silane, dicumyl peroxide, di-n-butyltin dilaurate, magnesium hydroxide are sent into mixer, 100-120 DEG C, mix 8-10 minute under the speed of 900-1000 rev/min, send into dual-screw-stem machine again, 140-145 DEG C, extrude under the speed of 300-400 rev/min, obtain mixture;
(2) material that (1) step obtains is crossed water for cooling, remove unnecessary moisture, pelletizing, obtain pellet;
(3) pellet (2) step obtained and EVA, high-density polyethylene resin, microencapsulated powder oil, terpolymer EP rubber, titania nanotube send into mixer, 80-100 DEG C, mix 3-4 minute under the speed of 800-900 rev/min, add other remaining component again, continue mixing 5-6 minute, send into dual-screw-stem machine again, at 120-140 DEG C, extruding pelletization under the speed of 300-400 rev/min, to obtain final product;
Beneficial effect of the present invention
Insulation Material of the present invention employs the raw materials such as Low Density Polyethylene and carries out cross-linking modified to inorganic fire-retarded filler, obtain the fire-retardant filler of surperficial half cross-linked state, carry out with base resin again mixing and be cross-linked, improve the consistency of fire-retardant filler and resin binder, add a certain proportion of microencapsulated powder oil simultaneously, when not affecting CABLE MATERIALS flame retardant properties, greatly reduce the addition of inorganic combustion inhibitor, this Insulation Material pliability is high, good toughness, excellent in mechanical performance; By using vinyl chloride-vinyl acetate resin, terpolymer EP rubber, improve toughness and the pliability of Insulation Material; By using titania nanotube, improve ageing resistance and the mechanical property of Insulation Material.This Insulation Material is applicable to the family such as refrigerator, air-conditioning wirning harness, long service life, and resistance to envrionment temperature grade is high, can in-60 DEG C ~+80 DEG C temperature ranges long continuous operation, extremely low cold tolerance, security is good.
Embodiment
The soft halogen-free flame retardant insulation material of a kind of household electrical appliances, is made up of the raw material of following weight part (kilogram): ldpe resin 13, vinyltrimethoxy silane 0.3, dicumyl peroxide 0.06, di-n-butyltin dilaurate 0.01, magnesium hydroxide 55, EVA63, high-density polyethylene resin 21, microencapsulated powder oil 7.5, terpolymer EP rubber 3.5, vinyl chloride-vinyl acetate resin 3.5, titania nanotube 2.5.
The described household electrical appliances production method of soft halogen-free flame retardant insulation material, is characterized in that:
(1) ldpe resin, vinyltrimethoxy silane, dicumyl peroxide, di-n-butyltin dilaurate, magnesium hydroxide are sent into mixer, 9 minutes are mixed under the speed of 110 DEG C, 950 revs/min, send into dual-screw-stem machine again, extrude under the speed of 143 DEG C, 350 revs/min, obtain mixture;
(2) material that (1) step obtains is crossed water for cooling, remove unnecessary moisture, pelletizing, obtain pellet;
(3) pellet (2) step obtained and EVA, high-density polyethylene resin, microencapsulated powder oil, terpolymer EP rubber, titania nanotube send into mixer, 4 minutes are mixed under the speed of 90 DEG C, 850 revs/min, add other remaining component again, continue mixing 5 minutes, send into dual-screw-stem machine again, extruding pelletization under the speed of 130 DEG C, 350 revs/min, to obtain final product;
Experimental data:
The tensile strength of this Insulation Material is 12.9MPa after tested, and shock strength is 34.8kJ/m 2, elongation at break is 150.3%, and oxygen index is 35.6, and vertical combustion rank is FV-0 level, and melt flow rate (MFR) is 4g/10min.

Claims (2)

1. the soft halogen-free flame retardant insulation material of household electrical appliances, is characterized in that being made up of the raw material of following weight part: ldpe resin 10-15, vinyltrimethoxy silane 0.3-0.4, dicumyl peroxide 0.04-0.08, di-n-butyltin dilaurate 0.01-0.02, magnesium hydroxide 50-60, EVA60-65, high-density polyethylene resin 20-23, microencapsulated powder oil 7-8, terpolymer EP rubber 3-4, vinyl chloride-vinyl acetate resin 3-4, titania nanotube 2-3.
2. the household electrical appliances according to claim 1 production method of soft halogen-free flame retardant insulation material, is characterized in that:
(1) ldpe resin, vinyltrimethoxy silane, dicumyl peroxide, di-n-butyltin dilaurate, magnesium hydroxide are sent into mixer, 100-120 DEG C, mix 8-10 minute under the speed of 900-1000 rev/min, send into dual-screw-stem machine again, 140-145 DEG C, extrude under the speed of 300-400 rev/min, obtain mixture;
(2) material that (1) step obtains is crossed water for cooling, remove unnecessary moisture, pelletizing, obtain pellet;
(3) pellet (2) step obtained and EVA, high-density polyethylene resin, microencapsulated powder oil, terpolymer EP rubber, titania nanotube send into mixer, 80-100 DEG C, mix 3-4 minute under the speed of 800-900 rev/min, add other remaining component again, continue mixing 5-6 minute, send into dual-screw-stem machine again, at 120-140 DEG C, extruding pelletization under the speed of 300-400 rev/min, to obtain final product.
CN201510285597.3A 2015-05-29 2015-05-29 Soft halogen-free flame-retardant insulation material for home appliances and preparation method thereof Pending CN104893085A (en)

Priority Applications (1)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106046638A (en) * 2016-07-14 2016-10-26 东莞市成天泰电线电缆有限公司 Super-smooth semiconductive shield cable special material and shield cable made of super-smooth semiconductive shield cable special material
CN107304283A (en) * 2017-07-26 2017-10-31 合肥同佑电子科技有限公司 It is a kind of for CABLE MATERIALS of automobile charging pile and preparation method thereof
CN107880376A (en) * 2017-12-13 2018-04-06 苏州浩焱精密模具有限公司 A kind of electric wire flame-retardant insulating material and preparation method thereof
CN108276636A (en) * 2017-11-27 2018-07-13 安徽卓越电缆有限公司 Silicon rubber insulating control cable protective cover material
CN108276634A (en) * 2018-01-23 2018-07-13 合肥达户电线电缆科技有限公司 A kind of soft type fire-resistant cable material and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122097A (en) * 2013-01-22 2013-05-29 安徽华津电缆集团有限公司 Thermoplastic low-smoke halogen-free flame-retardant environment-friendly sheath material for power cables and preparation method thereof
CN104277284A (en) * 2014-09-10 2015-01-14 江苏金聚合金材料有限公司 Flexible low-smoke halogen-free cable material and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103122097A (en) * 2013-01-22 2013-05-29 安徽华津电缆集团有限公司 Thermoplastic low-smoke halogen-free flame-retardant environment-friendly sheath material for power cables and preparation method thereof
CN104277284A (en) * 2014-09-10 2015-01-14 江苏金聚合金材料有限公司 Flexible low-smoke halogen-free cable material and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106046638A (en) * 2016-07-14 2016-10-26 东莞市成天泰电线电缆有限公司 Super-smooth semiconductive shield cable special material and shield cable made of super-smooth semiconductive shield cable special material
CN107304283A (en) * 2017-07-26 2017-10-31 合肥同佑电子科技有限公司 It is a kind of for CABLE MATERIALS of automobile charging pile and preparation method thereof
CN108276636A (en) * 2017-11-27 2018-07-13 安徽卓越电缆有限公司 Silicon rubber insulating control cable protective cover material
CN107880376A (en) * 2017-12-13 2018-04-06 苏州浩焱精密模具有限公司 A kind of electric wire flame-retardant insulating material and preparation method thereof
CN108276634A (en) * 2018-01-23 2018-07-13 合肥达户电线电缆科技有限公司 A kind of soft type fire-resistant cable material and preparation method thereof

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Application publication date: 20150909

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