CN104031326B - A kind of modified hard cross-linked polrvinyl chloride flame-retardant foam and preparation method thereof - Google Patents
A kind of modified hard cross-linked polrvinyl chloride flame-retardant foam and preparation method thereof Download PDFInfo
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- CN104031326B CN104031326B CN201310085012.4A CN201310085012A CN104031326B CN 104031326 B CN104031326 B CN 104031326B CN 201310085012 A CN201310085012 A CN 201310085012A CN 104031326 B CN104031326 B CN 104031326B
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- 239000006260 foam Substances 0.000 title claims abstract description 61
- 239000003063 flame retardant Substances 0.000 title claims abstract description 32
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 20
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims description 14
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 25
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 25
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 150000008064 anhydrides Chemical class 0.000 claims abstract description 11
- 239000004593 Epoxy Substances 0.000 claims abstract description 9
- 239000012948 isocyanate Substances 0.000 claims abstract description 9
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 9
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 9
- 239000003549 soybean oil Substances 0.000 claims abstract description 9
- 239000004801 Chlorinated PVC Substances 0.000 claims abstract description 7
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 claims abstract description 7
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 5
- 239000000945 filler Substances 0.000 claims abstract description 5
- 239000004088 foaming agent Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 28
- -1 poly methylene Polymers 0.000 claims description 23
- 229910019142 PO4 Inorganic materials 0.000 claims description 19
- 239000010452 phosphate Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 16
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004156 Azodicarbonamide Substances 0.000 claims description 10
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 10
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 229920001228 polyisocyanate Polymers 0.000 claims description 7
- 239000005056 polyisocyanate Substances 0.000 claims description 7
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 7
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical group C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims description 4
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 claims description 4
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- VYKXQOYUCMREIS-UHFFFAOYSA-N methylhexahydrophthalic anhydride Chemical compound C1CCCC2C(=O)OC(=O)C21C VYKXQOYUCMREIS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 4
- LLYXJBROWQDVMI-UHFFFAOYSA-N 2-chloro-4-nitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1Cl LLYXJBROWQDVMI-UHFFFAOYSA-N 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 3
- 238000000748 compression moulding Methods 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims description 2
- 229920001596 poly (chlorostyrenes) Polymers 0.000 claims description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 150000003014 phosphoric acid esters Chemical class 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 6
- 235000011837 pasties Nutrition 0.000 description 6
- 238000012805 post-processing Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000002562 thickening agent Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical compound C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 4
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- BSZXAFXFTLXUFV-UHFFFAOYSA-N 1-phenylethylbenzene Chemical compound C=1C=CC=CC=1C(C)C1=CC=CC=C1 BSZXAFXFTLXUFV-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 102100023116 Sodium/nucleoside cotransporter 1 Human genes 0.000 description 1
- 101710123675 Sodium/nucleoside cotransporter 1 Proteins 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000001246 bromo group Chemical class Br* 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012757 flame retardant agent Substances 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- XJRAOMZCVTUHFI-UHFFFAOYSA-N isocyanic acid;methane Chemical group C.N=C=O.N=C=O XJRAOMZCVTUHFI-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920007790 polymethacrylimide foam Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a kind of modified hard cross-linked polrvinyl chloride flame-retardant foam, it is prepared from by following raw materials in parts by weight number ratio: PVC paste resin 90～99 parts, chlorinated polyvinyl chloride resin 1～10 parts, cross-linking agent 3～15 parts, isocyanates 30～70 parts, anhydride 9～24 parts, azo foaming agent 4～8 parts, epoxy soybean oil 2～15 parts, filler 2～6 parts, fire retardant 5～30 parts.The present invention passes through optimization of C/C composites, has prepared the modified hard cross-linked polrvinyl chloride flame-retardant foam with B1 flame retardant rating, and this foam had both had the original advantageous property of modified hard crosslinked polyvinyl chloride foam, and had again good anti-flammability.
Description
Technical field
The present invention relates to polymer foams field, fire-retardant in particular to a kind of modified hard cross-linked polrvinyl chloride
Foam and preparation method thereof.
Background technology
Hard crosslinked polyvinyl chloride foam has a light-high-strength, the typical characteristic of the structural core such as high-modulus, relative to
Other high-performance foams such as polymethacrylimide foam, polyethyerimide foam etc. have that cost of manufacture is low, water resistance
High, the preferable advantage of flame retardant effect, has increasingly in fields such as boats and ships, wind energy, transportation, sports equipment, Aero-Space
It is widely applied.
About composition of raw materials and the preparation method of hard crosslinked polyvinyl chloride foam, numerous patents has been had to carry out disclosure,
Such as United States Patent (USP) US2007/0200266A1 and US2010/0068487, Chinese patent CN101580573A etc..Existing method system
Though standby hard crosslinked polyvinyl chloride foam out itself has an anti-flammability, but flame retardant rating relatively low (B2 level), and being not suitable for should
The occasion (such as B1 level) required for high fire-retardance.
Summary of the invention
It is an object of the invention to provide a kind of modified hard cross-linked polrvinyl chloride flame-retardant foam, this flame-retardant foam flame retardant effect
Good, it is possible to be applied to the occasion (B1 level) that high fire-retardance requires.
Research finds, adds fire retardant and can improve the resistance of foam in the formula of modified hard crosslinked polyvinyl chloride foam
Combustion performance, but, the consumption of the type of fire retardant, especially fire retardant and the proportioning of other raw materials, fire-retardant to final product
Performance important.By lot of experiments research fire resistance and the relation of consumption proportion, can find out the most former
Material consumption proportion.
For achieving the above object, the present invention takes techniques below scheme:
A kind of modified hard cross-linked polrvinyl chloride flame-retardant foam, it is characterised in that by following raw materials in parts by weight number than preparation
Form: PVC paste resin 90～99 parts, chlorinated polyvinyl chloride resin 1～10 parts, cross-linking agent 3～15 parts, isocyanates 30
～70 parts, anhydride 9～24 parts, azo foaming agent 4～8 parts, epoxy soybean oil 2～15 parts, filler 2～6 parts, fire retardant 5～
30 parts；Wherein:
Described cross-linking agent is selected from Triallyl isocyanurate or trimethylol-propane trimethacrylate；
Described isocyanates is selected from the modified '-diphenylmethane diisocyanate of carbodiimides-urine ketimide or polymethylene
The one or two kinds of of polyphenyl polyisocyanate；
Described anhydride is selected from cis-hexamethylene-1,2-dicarboxylic anhydride or methyl hexahydrophthalic anhydride；
Described foaming agent is the mixture of azodicarbonamide and azodiisobutyronitrile, and both weight ratios are 1: 1～1: 5；
Described filler is selected from one or more of hollow glass micropearl, titanium dioxide, CNT or montmorillonite；
Described fire retardant is selected from high activity phosphate ester, low corrosion phosphate ester, deca-BDE, triaryl phosphate, ten bromines
One or more of diphenylethane.High activity phosphate ester preferred high activity phosphate ester LYCO-P08 or high activity phosphate ester MAX-
P16, low corrosion phosphate ester preferably less than corrodes phosphate ester LYCO-P30.
The K value of described PVC paste resin is 70～80, and chlorinated polyvinyl chloride resin chlorinty is not less than 64%, polychlorostyrene
Resin stuck with paste by ethylene and chlorinated polyvinyl chloride resin weight sum is 100 parts.
It is a further object to provide the preparation method of above-mentioned modified hard crosslinked polyvinyl chloride foam, take as
Lower step:
A the raw material in described component being liquid, under 0.09MPa, is carried out mix homogeneously by described weight, then will by ()
Described component is the raw material of solid is added in liquid by described weight, stir 15～20 minutes and obtain homogeneous paste mixture；
B homogeneous paste mixture is poured into the mould of good seal by (), temperature be 170～180 DEG C and pressure be 5～
Carry out compression molding under conditions of 30MPa, cool down mould die sinking, obtain die briquetting；
C die briquetting that step (b) is obtained by () is positioned in the vaporium of 90～98 DEG C and foams, and obtains foam；
D foam that step (c) is obtained by () carries out cured in the vaporium of 60 DEG C, and to obtain modified hard crosslinking poly-
Chloride foams.
The beneficial effects of the present invention is, by optimization of C/C composites, prepared the modified hard friendship with B1 flame retardant rating
Connection polrvinyl chloride flame-retardant foam, this foam had both had original advantageous property of modified hard crosslinked polyvinyl chloride foam, had had again
Good anti-flammability, the occasion for the entrance of this material with high fire-retardance requirement opens window.
Detailed description of the invention
The present invention will be further described below:
Following formula every part is 1 kilogram.
Embodiment 1
Recipe ingredient is formed by following weight part ratio: K value is the PVC paste resin 90 parts of 70, the chlorine of chlorinty 64%
Chlorinated polynvinyl chloride (CPVC) resin 10 parts, Triallyl isocyanurate 3 parts, the diphenyl-methane two that carbodiimides-urine ketimide is modified
4 parts of the mixture of isocyanates 30 parts, cis-hexamethylene-1,2-dicarboxylic anhydride 9 parts, azodicarbonamide and azodiisobutyronitrile,
And azodicarbonamide and azodiisobutyronitrile weight ratio are 1: 1, epoxy soybean oil 2 parts, hollow glass micropearl 2 parts, high
Active phosphate LYCO-P08 (or high activity phosphate ester MAX-P16) 5 parts.
According to formula dispensing, under vacuum is 0.09MPa, the raw material in described component being liquid is entered by described weight
Row mix homogeneously, is then added the raw material in described component being solid in liquid by described weight, stirs 20 minutes uniformly
Pasty mixture；The thickener of preparation is filled 25mm thickness steel die, after matched moulds, mould is put in the platen-press of 180 DEG C,
Pressure is to keep cooling mould after 10min, the die sinking when mold temperature is less than 60 DEG C under 5MPa, obtains die briquetting；By take out
Die briquetting is placed in the vaporium of 90 DEG C and foams, and prepares foam；By foam post processing 2 days in the vaporium of 60 DEG C, system
It is 75kg/m for going out density3Hard cross-linked polrvinyl chloride flame-retardant foam.Its performance indications are as shown in table 1.
Embodiment 2
Recipe ingredient is formed by following weight part ratio: K value is the PVC paste resin 99 parts of 80, the chlorine of chlorinty 68%
Chlorinated polynvinyl chloride (CPVC) resin 1 part, trimethylol-propane trimethacrylate 15 parts, poly methylene poly phenyl poly isocyanate (city
Sell commodity, for mixture) 70 parts, methyl hexahydrophthalic anhydride 24 parts, 8 parts of the mixture of azodicarbonamide and azodiisobutyronitrile,
And azodicarbonamide and azodiisobutyronitrile weight ratio are 1: 5, epoxy soybean oil 15 parts, titanium dioxide 6 parts, triaryl
Phosphate ester 30 parts.
According to formula dispensing, under vacuum is 0.09MPa, the raw material in described component being liquid is entered by described weight
Row mix homogeneously, is then added the raw material in described component being solid in liquid by described weight, stirs 20 minutes uniformly
Pasty mixture；The thickener of preparation is filled 25mm thickness steel die, after matched moulds, mould is put in the platen-press of 170 DEG C,
Pressure is to keep cooling mould after 10min, the die sinking when mold temperature is less than 60 DEG C under 30MPa；The die briquetting of taking-up is placed in
The vaporium of 92 DEG C foams, prepares foam；By foam post processing 2 days in the vaporium of 60 DEG C, preparing density is
45kg/m3Hard crosslinked polyvinyl chloride foam.Its performance indications are as shown in table 1.
Embodiment 3
Recipe ingredient is formed by following weight part ratio: K value is the PVC paste resin 95 parts of 75, the chlorine of chlorinty 70%
Chlorinated polynvinyl chloride (CPVC) resin 5 parts, trimethylol-propane trimethacrylate 8 parts, the hexichol that carbodiimides-urine ketimide is modified
Methane diisocyanate 25 parts and poly methylene poly phenyl poly isocyanate 25 parts, methyl hexahydrophthalic anhydride 10 parts, azo two formyl
6 parts of the mixture of amine and azodiisobutyronitrile, and azodicarbonamide is 1: 3 with azodiisobutyronitrile weight ratio, epoxy
Soybean oil 10 parts, titanium dioxide 3 parts, CNT 5 parts, low corrosion phosphate ester LYCO-P30 is 15 parts.
According to formula dispensing, under vacuum is 0.09MPa, the raw material in described component being liquid is entered by described weight
Row mix homogeneously, is then added the raw material in described component being solid in liquid by described weight, stirs 15 minutes uniformly
Pasty mixture；The thickener of preparation is filled 25mm thickness steel die, after matched moulds, mould is put in the platen-press of 175 DEG C,
Pressure is to keep cooling mould after 10min, the die sinking when mold temperature is less than 60 DEG C under 20MPa；The die briquetting of taking-up is placed in
The vaporium of 95 DEG C foams, prepares foam；By foam post processing 2 days in the vaporium of 60 DEG C, preparing density is
60kg/m3Hard crosslinked polyvinyl chloride foam.Its performance indications are as shown in table 1.
Embodiment 4
Recipe ingredient is formed by following weight part ratio: K value is the PVC paste resin 92 parts of 76, the chlorine of chlorinty 72%
Chlorinated polynvinyl chloride (CPVC) resin 8 parts, Triallyl isocyanurate 10 parts, the diphenyl-methane two that carbodiimides-urine ketimide is modified
Isocyanates 20 parts and poly methylene poly phenyl poly isocyanate 30 parts, cis-hexamethylene-1,2-dicarboxylic anhydride 15 parts, azo two
7 parts of the mixture of Methanamide and azodiisobutyronitrile, and azodicarbonamide is 1: 2 with azodiisobutyronitrile weight ratio,
Epoxy soybean oil 5 parts, titanium dioxide 3 parts, montmorillonite 1 part, deca-BDE 8 parts.
According to formula dispensing, under vacuum is 0.09MPa, the raw material in described component being liquid is entered by described weight
Row mix homogeneously, is then added the raw material in described component being solid in liquid by described weight, stirs 15 minutes uniformly
Pasty mixture；The thickener of preparation is filled 25mm thickness steel die, after matched moulds, mould is put in the platen-press of 178 DEG C,
Pressure is to keep cooling mould after 10min, the die sinking when mold temperature is less than 60 DEG C under 25MPa；The die briquetting of taking-up is placed in
The vaporium of 96 DEG C foams, prepares foam；By foam post processing 2 days in the vaporium of 60 DEG C, preparing density is
70kg/m3Hard crosslinked polyvinyl chloride foam.Its performance indications are as shown in table 1.
Embodiment 5
Recipe ingredient is formed by following weight part ratio: K value is the PVC paste resin 94 parts of 72, the % chlorine of chlorinty 75
Chlorinated polynvinyl chloride (CPVC) resin 6 parts, Triallyl isocyanurate 12 parts, the diphenyl-methane two that carbodiimides-urine ketimide is modified
Isocyanates 10 parts and poly methylene poly phenyl poly isocyanate 40 parts, cis-hexamethylene-1,2-dicarboxylic anhydride 20 parts, azo two
5 parts of the mixture of Methanamide and azodiisobutyronitrile, and azodicarbonamide is 1: 4 with azodiisobutyronitrile weight ratio,
Epoxy soybean oil 7 parts, hollow glass micropearl 1 part, titanium dioxide 1 part, CNT 1 part, montmorillonite 1 part, decabrominated dipheny base second
5 parts of alkane and deca-BDE 5 parts.
According to formula dispensing, under vacuum is 0.09MPa, the raw material in described component being liquid is entered by described weight
Row mix homogeneously, is then added the raw material in described component being solid in liquid by described weight, stirs 15 minutes uniformly
Pasty mixture；The thickener of preparation is filled 25mm thickness steel die, after matched moulds, mould is put in the platen-press of 172 DEG C,
Pressure is to keep cooling mould after 10min, the die sinking when mold temperature is less than 60 DEG C under 10MPa；The die briquetting of taking-up is placed in
The vaporium of 98 DEG C foams, prepares foam；By foam post processing 2 days in the vaporium of 60 DEG C, preparing density is
90kg/m3Hard crosslinked polyvinyl chloride foam.Its performance indications data are as shown in table 1.
Comparative example 1:
Recipe ingredient is formed by following weight part ratio: K value is the PVC paste resin 92 parts of 76, the chlorine of chlorinty 72%
Chlorinated polynvinyl chloride (CPVC) resin 8 parts, Triallyl isocyanurate 10 parts, the diphenyl-methane two that carbodiimides-urine ketimide is modified
Isocyanates 20 parts and poly methylene poly phenyl poly isocyanate 30 parts, cis-hexamethylene-1,2-dicarboxylic anhydride 15 parts, azo two
7 parts of the mixture of Methanamide and azodiisobutyronitrile, and azodicarbonamide is 1: 2 with azodiisobutyronitrile weight ratio,
Epoxy soybean oil 5 parts, calcium carbonate 4 parts.
According to formula dispensing, under vacuum is 0.09MPa, the raw material in described component being liquid is entered by described weight
Row mix homogeneously, is then added the raw material in described component being solid in liquid by described weight, stirs 15 minutes uniformly
Pasty mixture；The thickener of preparation is filled 25mm thickness steel die, after matched moulds, mould is put in the platen-press of 178 DEG C,
Pressure is to keep cooling mould after 10min, the die sinking when mold temperature is less than 60 DEG C under 25MPa；The die briquetting of taking-up is placed in
The vaporium of 96 DEG C foams, prepares foam；By foam post processing 2 days in the vaporium of 60 DEG C, preparing density is
62kg/m3Hard crosslinked polyvinyl chloride foam.Its performance indications are as shown in table 1.
Table 1 illustrates, owing to comparative example not using fire retardant, compared with the embodiment 3 of similar density, and embodiment 3 institute
The mechanical property and the fire resistance that obtain crosslinked polyvinyl chloride foam are all remarkably higher than comparative example.From embodiment 1 to enforcement
Example 5, it can be seen that along with obtained by the present invention, the density of crosslinked polyvinyl chloride foam increases, it stretches, compresses, shears
Performance improves.In general, owing to present invention employs fire retardant, the flame retardant effect of obtained foam increases, and can reach B1
More than Ji.Other a large number of experiments show that, under existing material condition, when amount of flame-retardant agent is less than 5 parts or is more than 30 parts, fire-retardant
Effect is unable to reach B1 level.
Table 1 embodiment 1-5 and the mechanical property of comparative example and hot property
Claims (4)
1. a modified hard cross-linked polrvinyl chloride flame-retardant foam, it is characterised in that by following raw materials in parts by weight number than preparation
Become: PVC paste resin 90～99 parts, chlorinated polyvinyl chloride resin 1～10 parts, cross-linking agent 3～15 parts, isocyanates 30～
70 parts, anhydride 9～24 parts, azo foaming agent 4～8 parts, epoxy soybean oil 2～15 parts, filler 2～6 parts, fire retardant 5～30
Part；Wherein:
Described cross-linking agent is selected from Triallyl isocyanurate or trimethylol-propane trimethacrylate；
Described isocyanates is poly methylene poly phenyl poly isocyanate；
Described anhydride is selected from cis-hexamethylene-1,2-dicarboxylic anhydride or methyl hexahydrophthalic anhydride；
Described foaming agent is the mixture of azodicarbonamide and azodiisobutyronitrile, and both weight ratios are 1: 1～1: 5；
Described filler is selected from one or more of hollow glass micropearl, titanium dioxide, CNT or montmorillonite；
Described fire retardant is selected from high activity phosphate ester, low corrosion phosphate ester, deca-BDE, triaryl phosphate, decabrominated dipheny
One or more of base ethane.
2. modified hard cross-linked polrvinyl chloride flame-retardant foam as claimed in claim 1, it is characterised in that described Welvic
The K value of resin is 70～80, and chlorinated polyvinyl chloride resin chlorinty is not less than 64%, PVC paste resin and chlorinated polyvinyl chloride second
Olefine resin weight sum is 100 parts.
3. modified hard cross-linked polrvinyl chloride flame-retardant foam as claimed in claim 1, it is characterised in that described high activity phosphoric acid
Ester is high activity phosphate ester LYCO-P08 or high activity phosphate ester MAX-P16, and described low corrosion phosphate ester is low corrosion phosphate ester
LYCO-P30。
4. the preparation method of modified hard cross-linked polrvinyl chloride flame-retardant foam as claimed in claim 1, it is characterised in that include
Following steps:
A the raw material in described component being liquid, under 0.09MPa, is carried out mix homogeneously by described weight, then by described by ()
Component is the raw material of solid is added in liquid by described weight, stir 15～20 minutes and obtain homogeneous paste mixture；
B homogeneous paste mixture is poured into the mould of good seal by (), being 170～180 DEG C in temperature is 5～30MPa with pressure
Under conditions of carry out compression molding, cool down mould die sinking, obtain die briquetting；
C die briquetting that step (b) is obtained by () is positioned in the vaporium of 90～98 DEG C and foams, and obtains foam；
D foam that step (c) is obtained by () carries out cured in the vaporium of 60 DEG C and obtains modified hard crosslinking polychlorostyrene second
Alkene foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310085012.4A CN104031326B (en) | 2013-03-07 | 2013-03-07 | A kind of modified hard cross-linked polrvinyl chloride flame-retardant foam and preparation method thereof |
Applications Claiming Priority (1)
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| CN105803766B (en) * | 2016-04-13 | 2018-02-06 | 北京服装学院 | A kind of ultra-fine yarn spinning oil agent and preparation method |
| CN105733133A (en) * | 2016-04-25 | 2016-07-06 | 浙江尤夫高新纤维股份有限公司 | Flame-retarding and smoke-suppressing polyvinyl chloride membrane structure material |
| CN107033811A (en) * | 2017-05-05 | 2017-08-11 | 安徽国登管业科技有限公司 | Effective bonding agent of steel plastic compount and preparation method thereof |
| CN107501821B (en) * | 2017-07-20 | 2020-03-20 | 中国科学院长春应用化学研究所 | Crosslinked chlorinated polyvinyl chloride foam material and preparation method thereof |
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| CN107603071B (en) * | 2017-10-18 | 2019-09-17 | 清华大学 | A kind of PVC foamed composite and preparation method thereof of resinous paint slag |
| CN108724885A (en) * | 2018-04-11 | 2018-11-02 | 南安市创培电子科技有限公司 | A kind of production technology of the compound concrete-cored foamed planks of EPS |
| CN110982189B (en) * | 2019-11-13 | 2021-10-22 | 佛山佛塑科技集团股份有限公司 | PVC structural foam and preparation method thereof |
| CN110982196A (en) * | 2019-12-20 | 2020-04-10 | 厦门市兆泰云智能科技有限公司 | Foam fireproof material suitable for charging station |
| CN112662090A (en) * | 2020-12-21 | 2021-04-16 | 淄博科信腾达信息科技有限公司 | Modified rigid polyvinyl chloride foam and preparation method thereof |
| CN113061310B (en) * | 2021-03-25 | 2022-02-22 | 中国科学院长春应用化学研究所 | Crosslinked polyvinyl chloride structural foam material and preparation method thereof |
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