CN105885197B - Flame-retardant ceramic EVA and preparation method thereof - Google Patents
Flame-retardant ceramic EVA and preparation method thereof Download PDFInfo
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- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
Abstract
Flame-retardant ceramic EVA and preparation method thereof, it is related to a kind of composite material and preparation method, by weight, contain: EVA100 parts, 10~60 parts of fume colloidal silica, 1~5 part of antioxidant, 0.2~3 part of cross-linking aid, 1~8 part of coupling agent, 10~180 parts of boric acid zinc-type Vitrified powder, 10~60 parts of hydroxide flame retardant, 0.2~4 part of crosslinking agent.Above-mentioned material is kneaded uniformly in kneader, bulk ceramic EVA is formed, through mill up to cross-linked structure ceramic EVA composite material.The present invention can be such that the mechanical performance of EVA composite material is obviously improved, EVA composite material of the present invention selects suitable crosslinking agent and processing method, crosslinking Treatment has been carried out to EVA material and has added a kind of boric acid zinc-type ceramic powder, the mechanical performance of the ceramic EVA composite material after being crosslinked is enabled to be obviously improved, sintering temperature reduces, production efficiency is improved, production cost is thereby reduced.
Description
Technical field
The present invention relates to a kind of composite material and preparation methods, more particularly to a kind of Flame-retardant ceramic EVA and its system
Preparation Method.
Background technique
Traditional EVA composite fireproof performance is poor, and mechanical performance is insufficient in some application fields, common EVA material
Material generally can be all completely consumed in fire, and current technology mainly uses LSOH anti-flaming EVA, these polyolefin are in fire
Burning has flame retardancy and self-extinguishment, plays a role in a fire.But after continuous high temperature burning, excess is burnt without mechanical strong
Degree, melting drippage, is not able to maintain the integrality of product, will cause more dangerous secondary disaster, such as sheath and the insulation of cable
After burning, short circuit is caused.The present invention is easy to process, and production cost is low, and the mechanical performance of the EVA composite material after being crosslinked obtains
It is obviously improved, and will form after by flame ablation the shell of hard ceramic-like and self-extinguishment is prevented, only quilt is protected in propagation of flame
The object of burning is not damaged.This ceramic EVA by crosslinking cannot be only used in fire-resisting cable, be but also widely used for vehicle
Sealing strip and aviation fireproof coating etc..
Summary of the invention
The purpose of the present invention is to provide a kind of Flame-retardant ceramic EVA and preparation method thereof, ceramic EVA of the present invention is not only
With very high flame retardant property, while the filler added will not influence EVA(ethylene-vinyl acetate co-polymer) other
Mechanical performance.So that the mechanical performance of ceramic EVA composite material is obviously improved, sintering temperature is reduced, and porcelain is substantially improved into
Hardness and smoothness afterwards, cubical contraction is minimum, improves production efficiency.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of Flame-retardant ceramic EVA, the ceramic EVA is formed by weight to be had:
100 parts of EVA；
10~60 parts of fume colloidal silica；
1~5 part of antioxidant；
0.2~3 part of cross-linking aid；
1~8 part of coupling agent；
10~180 parts of boric acid zinc-type Vitrified powder；
10~60 parts of hydroxide flame retardant；
0.2~4 part of crosslinking agent.
The Flame-retardant ceramic EVA, the EVA is ethylene-vinyl acetate co-polymer, wherein vinyl acetate (VA)
Content is 5%~40%.
The Flame-retardant ceramic EVA, the white carbon black are fume colloidal silica, and partial size is at 10-15 μm.
The Flame-retardant ceramic EVA, the cross-linking aid are Triallyl isocyanurate (TAIC).
The Flame-retardant ceramic EVA, the antioxidant are antioxidant 1010, one in antioxidant BHT or irgasfos 168
Kind or combinations thereof.
The Flame-retardant ceramic EVA, the coupling agent be Silane coupling agent KH550, KH560, KH570, A151 or
One of A171 or combinations thereof.
The Flame-retardant ceramic EVA, the boric acid zinc-type Vitrified powder are by porcelain filling, fluxing agent composition；Zinc borate
Type Vitrified powder is one of muscovite, wollastonite, silica flour or aluminium oxide or combinations thereof at porcelain filling；Boric acid zinc-type porcelain
Fluxing agent in powder is ZB zinc borate, one of line borate or glass powder with low melting point or combinations thereof；In boric acid zinc-type Vitrified powder
Other fillers be one of titanium dioxide, talcum powder and calcium carbonate or combinations thereof.
The Flame-retardant ceramic EVA, the hydroxide flame retardant are aluminium hydroxide, magnesium hydroxide or cerium hydroxide
One of or combinations thereof；The ratio of magnesium hydroxide and aluminium hydroxide in hydroxide flame retardant is 7:3.
The preparation method of Flame-retardant ceramic EVA, the method includes following preparation steps:
1. by the EVA(ethylene-vinyl acetate co-polymer) 100 parts, 10~60 parts of fume colloidal silica, antioxidant 1
~10 parts, 10~60 parts of hydroxide flame retardant are kneaded in kneader；
2. vacuumizing to kneader, vacuum degree is maintained at -0.1~-0.04Mpa, and temperature is kept for 80~160 DEG C；
3. kneader is added in 10~180 parts of Vitrified powders, the EVA(ethylene-vinylacetate for making Vitrified powder and being kneaded
Copolymer) it is kneaded uniformly, form the ceramic polyolefin of bulk；
4. the ceramic polyolefin of the bulk is removed kneader, and cooled down；
5. bulk ceramic EVA after cooling mill on a mill is added 0.2~4 part of crosslinking agent and cross-linking aid
Ceramic EVA is formed after 0.2~3 part of mill.
Ceramic EVA test under 10Mpa pressure, vulcanizes 5 minutes by the ceramic EVA sizing material at 170 ~ 180 DEG C
Test piece is made, mechanical property is then tested in test piece respectively, obtains: tensile strength reaches 10.00KN/M -12.00KN/M, stretches
Long rate reaches 170%-210%, and taking EVA sample 120 mesh steel meshes in part to coat, to be placed in 137 DEG C~141 DEG C xylene solutions 5 small
When, vacuum drying passes through formula:
W1-steel wire weight
W2-style and steel wire total weight
Style is coated style and steel wire total weight after getting well by W3-completely
W1-reaction terminates the steel wire weight after drying
Calculating the degree of cross linking can reach 67.2%~86.8%.
The advantages and effects of the present invention are:
Ceramic EVA composite material of the present invention, selects suitable crosslinking agent and processing method, is handed over EVA material
Connection handles and is added with a kind of boric acid zinc-type ceramic powder, and the mechanical performance of ceramic EVA composite material is enabled to be obviously improved,
Sintering temperature reduces, and the hardness after porcelain and smoothness is substantially improved into, and cubical contraction is minimum, improves production efficiency, drops
Low production cost is able to satisfy in defeated high-tension cable, building doors and windows polyolefin strip of paper used for sealing, vehicle polyolefin component and electric etc.
The features such as field reliably uses；The product worked it out with ceramic EVA of the present invention, mechanical performance is more preferable, not cracky,
The service life is longer.
Detailed description of the invention
Fig. 1 is picture of the embodiment 1 under scanning electron microscope；
Fig. 2 is picture of the embodiment 2 under scanning electron microscope；
Fig. 3 is picture of the embodiment 3 under scanning electron microscope.
Specific embodiment
The following describes the present invention in detail with reference to examples.
Embodiment 1
The preparation of Flame-retardant ceramic EVA the following steps are included:
1. by EVA(ethylene-vinyl acetate co-polymer) 100 parts, 60 parts of fume colloidal silica, 2 parts of antioxidant, hydrogen-oxygen
40 parts of compound fire retardant are kneaded in kneader；
2. vacuumizing to kneader, vacuum degree is maintained at -0.1~-0.04Mpa, and temperature is kept for 120 DEG C；
3. keeping Vitrified powder and the EVA(ethylene-that has been kneaded vinyl acetate copolymerized 60 parts of addition kneaders of Vitrified powder
Object) it is kneaded uniformly, form the ceramic polyolefin of bulk；
4. the ceramic EVA of bulk is removed kneader, and cooled down；
5. the ceramic EVA of bulk after cooling mill on a mill is added 2 parts of crosslinking agent, 1 part of cross-linking aid is opened
Ceramic EVA is formed after refining.
EVA is ethylene-vinyl acetate co-polymer, and wherein vinyl acetate (VA) content is 5%~40%.
White carbon black is fume colloidal silica, and partial size is at 10-15 μm；
Cross-linking aid is Triallyl isocyanurate (TAIC)；
Coupling agent is Silane coupling agent KH550.
Silane coupling agent KN550 is compounded with ethyl alcohol, wet-treating is carried out to ceramic powder；
Boric acid zinc-type Vitrified powder is by porcelain filling, the part such as fluxing agent and other fillers is formed.
Boric acid zinc-type Vitrified powder is muscovite, wollastonite, silica flour and aluminium oxide at porcelain filling.
Fluxing agent in boric acid zinc-type Vitrified powder is ZB zinc borate
Other fillers in boric acid zinc-type Vitrified powder are titanium dioxide.
Hydroxide flame retardant is aluminium hydroxide and magnesium hydroxide.
The ratio of magnesium hydroxide and aluminium hydroxide in hydroxide flame retardant is 7:3.
Crosslinking agent is DCP.
Ceramic EVA test, by the ceramic EVA sizing material at 120 DEG C, under 12Mpa pressure, vulcanization is made for 5 minutes
Then test piece is tested mechanical property by test piece respectively, obtain；
Tensile strength reaches: 10.60KN/M；
Elongation reaches: 181%；
It measures to obtain by the degree of cross linking: the degree of cross linking 79.8%；
It can be obtained within 2 hours by 900 degrees Celsius in Muffle furnace: it is fine and close, tap the ceramic compound for having the raw sound of metal.
Embodiment 2
The preparation of Flame-retardant ceramic EVA the following steps are included:
1. by EVA(ethylene-vinyl acetate co-polymer) 100 parts, 50 parts of fume colloidal silica, 2 parts of antioxidant, hydrogen-oxygen
30 parts of compound fire retardant are kneaded in kneader；
2. vacuumizing to kneader, vacuum degree is maintained at -0.1~-0.04Mpa, and temperature is kept for 120 DEG C；
3. keeping Vitrified powder and the EVA(ethylene-that has been kneaded vinyl acetate copolymerized 70 parts of addition kneaders of Vitrified powder
Object) it is kneaded uniformly, form the ceramic polyolefin of bulk；
4. the ceramic polyolefin of bulk is removed kneader, and cooled down；
5. the ceramic EVA of bulk after cooling mill on a mill is added 1.8 parts of crosslinking agent, cross-linking aid 0.8
Ceramic EVA is formed after part mill.
EVA is ethylene-vinyl acetate co-polymer, and wherein vinyl acetate (VA) content is 5%~40%.
White carbon black is fume colloidal silica, and partial size is at 10-15 μm；
Cross-linking aid is Triallyl isocyanurate (TAIC)；
Coupling agent is silane coupling A -171.
Silane coupling A -171 is compounded with ethyl alcohol, wet-treating is carried out to ceramic powder.
Boric acid zinc-type Vitrified powder is a kind of Vitrified powder by porcelain filling, the part such as fluxing agent and other fillers is formed.
Boric acid zinc-type Vitrified powder is muscovite, wollastonite, silica flour and aluminium oxide at porcelain filling.
Fluxing agent in boric acid zinc-type Vitrified powder is ZB zinc borate.
Other fillers in boric acid zinc-type Vitrified powder are titanium dioxide.
Hydroxide flame retardant is aluminium hydroxide and magnesium hydroxide.
The ratio of magnesium hydroxide and aluminium hydroxide in hydroxide flame retardant is 7:3.
Crosslinking agent is DCP.
Ceramic EVA test, by the ceramic EVA sizing material at 120 DEG C, under 10Mpa pressure, compacting is made for 5 minutes
Then test piece is tested mechanical property by test piece respectively, obtain:
Tensile strength reaches 10.51KN/M；
Elongation reaches 173%；
It measures to obtain by the degree of cross linking: the degree of cross linking 77.9%.
Embodiment 3
The preparation of Flame-retardant ceramic EVA the following steps are included:
1. by the EVA(ethylene-vinyl acetate co-polymer) 100 parts, 70 parts of fume colloidal silica, 2 parts of antioxidant,
35 parts of hydroxide flame retardant are kneaded in kneader；
2. vacuumizing to kneader, vacuum degree is maintained at -0.1~-0.04Mpa, and temperature is kept for 120 DEG C；
3. keeping Vitrified powder and the EVA(ethylene-that has been kneaded vinyl acetate copolymerized 60 parts of addition kneaders of Vitrified powder
Object) it is kneaded uniformly, form the ceramic polyolefin of bulk；
4. the ceramic polyolefin of bulk is removed kneader, and cooled down；
5. the ceramic EVA of bulk after cooling mill on a mill is added 2.5 parts of crosslinking agent, 1 part of cross-linking aid
Ceramic EVA is formed after mill.
EVA is ethylene-vinyl acetate co-polymer, and wherein vinyl acetate (VA) content is 5%~40%.
White carbon black is fume colloidal silica, and partial size is at 10-15 μm.
Cross-linking aid Triallyl isocyanurate (TAIC).
Coupling agent is silane coupling agent KH560.
Flame-retardant ceramic EVA compounds silane coupling agent KN560 with ethyl alcohol, carries out wet-treating to ceramic powder.
Boric acid zinc-type Vitrified powder is a kind of self-control Vitrified powder by porcelain filling, the part such as fluxing agent and other fillers is formed.
Boric acid zinc-type Vitrified powder is muscovite, wollastonite, silica flour and aluminium oxide at porcelain filling.
Fluxing agent in boric acid zinc-type Vitrified powder is ZB zinc borate.
Other fillers in boric acid zinc-type Vitrified powder are titanium dioxide and talcum powder.
Hydroxide flame retardant is aluminium hydroxide and magnesium hydroxide.
The ratio of magnesium hydroxide and aluminium hydroxide in hydroxide flame retardant is 7:3.
Crosslinking agent is DCP.
Ceramic EVA test, the ceramic EVA sizing material is used at 130 DEG C, under 10Mpa pressure, is suppressed 5 minutes
Test piece is made, mechanical property is then tested into test piece respectively, obtains:
Tensile strength reaches 11.90KN/M；
Elongation reaches 177%；
It measures to obtain by the degree of cross linking: the degree of cross linking 86.2%.
Fig. 3 is picture of the embodiment 3 under scanning electron microscope, it can be seen that forms ceramic structure.
Claims (1)
1. a kind of Flame-retardant ceramic EVA, it is characterised in that: the ceramic EVA is formed by weight to be had:
100 parts of EVA；
10~60 parts of fume colloidal silica；
1~5 part of antioxidant；
0.2~3 part of cross-linking aid；
1~8 part of coupling agent；
10~180 parts of boric acid zinc-type Vitrified powder；
10~60 parts of hydroxide flame retardant；
0.2~4 part of crosslinking agent；
The EVA is ethylene-vinyl acetate co-polymer, and wherein vinyl acetate (VA) content is 5%~40%；
The partial size of the fume colloidal silica is at 10-15 μm；The cross-linking aid is Triallyl isocyanurate；
The antioxidant is antioxidant 1010, one of antioxidant BHT or irgasfos 168 or combinations thereof；
The coupling agent is one of Silane coupling agent KH550, KH560, KH570, A151 or A171 or combinations thereof；It is described
Boric acid zinc-type Vitrified powder is by porcelain filling, fluxing agent composition；Boric acid zinc-type Vitrified powder is muscovite, silicon ash at porcelain filling
One of stone, silica flour or aluminium oxide or combinations thereof；Fluxing agent in boric acid zinc-type Vitrified powder is ZB zinc borate, line borate or
One of glass powder with low melting point or combinations thereof；Other fillers in boric acid zinc-type Vitrified powder are titanium dioxide, talcum powder and carbonic acid
One of calcium or combinations thereof；The hydroxide flame retardant is one of aluminium hydroxide, magnesium hydroxide or cerium hydroxide
Or combinations thereof；The ratio of magnesium hydroxide and aluminium hydroxide in hydroxide flame retardant is 7:3.
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| CN106747291A (en) * | 2016-12-29 | 2017-05-31 | 苏州沃尔兴电子科技有限公司 | A kind of ceramic macromolecular material ceramic powder and preparation method thereof |
| CN106893325A (en) * | 2017-03-14 | 2017-06-27 | 深圳市沃尔核材股份有限公司 | Fire resistant flame retardant heat-barrier material, preparation method and application that a kind of high temperature resistant resistance to compression becomes |
| CN109679196A (en) * | 2018-12-24 | 2019-04-26 | 深圳市安品有机硅材料有限公司 | A kind of preparation method of ceramic fireproof polyolefin |
| CN109762237A (en) * | 2018-12-24 | 2019-05-17 | 深圳市安品有机硅材料有限公司 | It can ceramic fire-resistant polyolefin material |
| CN109705447A (en) * | 2018-12-27 | 2019-05-03 | 苏州安品新材料科技有限公司 | Fire-resistant polyolefin rubber and preparation method thereof |
| CN109721811A (en) * | 2018-12-29 | 2019-05-07 | 惠州市安品新材料有限公司 | A kind of polyolefin cable material and preparation method thereof |
| CN113527800B (en) * | 2021-07-05 | 2023-03-21 | 中国科学院深圳先进技术研究院 | Flame-retardant polyolefin composite material and preparation method and application thereof |
| CN114507390A (en) * | 2022-01-20 | 2022-05-17 | 上海高分子功能材料研究所 | Composite cross-linked ceramic low-smoke halogen-free heat-insulating polyolefin material and preparation method thereof |
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|---|---|---|---|---|
| CN103554648A (en) * | 2013-11-11 | 2014-02-05 | 深圳市沃尔核材股份有限公司 | Ceramic composite material and preparation method thereof |
| CN104650441A (en) * | 2015-03-16 | 2015-05-27 | 四川大学 | Ceramic bovine flame retardant polymer composite material and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103554648A (en) * | 2013-11-11 | 2014-02-05 | 深圳市沃尔核材股份有限公司 | Ceramic composite material and preparation method thereof |
| CN104650441A (en) * | 2015-03-16 | 2015-05-27 | 四川大学 | Ceramic bovine flame retardant polymer composite material and application thereof |
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