CN115678093A - Manufacturing method of conductive foam - Google Patents
Manufacturing method of conductive foam Download PDFInfo
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- CN115678093A CN115678093A CN202211093026.6A CN202211093026A CN115678093A CN 115678093 A CN115678093 A CN 115678093A CN 202211093026 A CN202211093026 A CN 202211093026A CN 115678093 A CN115678093 A CN 115678093A
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- 239000006260 foam Substances 0.000 title claims abstract description 137
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000003063 flame retardant Substances 0.000 claims abstract description 58
- 239000000203 mixture Substances 0.000 claims abstract description 35
- 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 claims abstract description 34
- -1 polypropylene Polymers 0.000 claims abstract description 32
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims abstract description 20
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 17
- 239000010452 phosphate Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004743 Polypropylene Substances 0.000 claims abstract description 15
- 229920002681 hypalon Polymers 0.000 claims abstract description 15
- 229920001155 polypropylene Polymers 0.000 claims abstract description 15
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 239000012948 isocyanate Substances 0.000 claims abstract description 11
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- 229920000570 polyether Polymers 0.000 claims abstract description 11
- 229920005862 polyol Polymers 0.000 claims abstract description 10
- 150000003077 polyols Chemical class 0.000 claims abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 40
- 239000004744 fabric Substances 0.000 claims description 31
- 238000003756 stirring Methods 0.000 claims description 28
- 239000003054 catalyst Substances 0.000 claims description 24
- 238000005520 cutting process Methods 0.000 claims description 20
- 239000003963 antioxidant agent Substances 0.000 claims description 19
- 230000003078 antioxidant effect Effects 0.000 claims description 19
- 239000003381 stabilizer Substances 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 17
- 230000001070 adhesive effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000005187 foaming Methods 0.000 claims description 10
- 239000004088 foaming agent Substances 0.000 claims description 10
- 238000007747 plating Methods 0.000 claims description 10
- 229920001721 polyimide Polymers 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 229910018540 Si C Inorganic materials 0.000 claims description 6
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 239000004250 tert-Butylhydroquinone Substances 0.000 claims description 6
- 235000019281 tert-butylhydroquinone Nutrition 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000012796 inorganic flame retardant Substances 0.000 claims description 3
- NHLUVTZJQOJKCC-UHFFFAOYSA-N n,n-dimethylhexadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCN(C)C NHLUVTZJQOJKCC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 3
- 235000013824 polyphenols Nutrition 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 235000019282 butylated hydroxyanisole Nutrition 0.000 claims description 2
- 229930003935 flavonoid Natural products 0.000 claims description 2
- 235000017173 flavonoids Nutrition 0.000 claims description 2
- 150000002215 flavonoids Chemical class 0.000 claims description 2
- JDEJGVSZUIJWBM-UHFFFAOYSA-N n,n,2-trimethylaniline Chemical compound CN(C)C1=CC=CC=C1C JDEJGVSZUIJWBM-UHFFFAOYSA-N 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 229930003799 tocopherol Natural products 0.000 claims description 2
- 239000011732 tocopherol Substances 0.000 claims description 2
- 235000006708 antioxidants Nutrition 0.000 claims 3
- 239000004322 Butylated hydroxytoluene Substances 0.000 claims 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims 2
- 229940095259 butylated hydroxytoluene Drugs 0.000 claims 2
- 150000003014 phosphoric acid esters Chemical class 0.000 claims 2
- 150000001649 bromium compounds Chemical class 0.000 claims 1
- 150000001805 chlorine compounds Chemical class 0.000 claims 1
- 235000019149 tocopherols Nutrition 0.000 claims 1
- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 230000003712 anti-aging effect Effects 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 description 2
- SPSPIUSUWPLVKD-UHFFFAOYSA-N 2,3-dibutyl-6-methylphenol Chemical compound CCCCC1=CC=C(C)C(O)=C1CCCC SPSPIUSUWPLVKD-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
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Abstract
The invention relates to the technical field of conductive foam manufacturing, and discloses a manufacturing method of conductive foam, which comprises the following steps: s1: preparing materials, 45-50 parts of isocyanate, 50-60 parts of polyether polyol, 20-30 parts of polypropylene, 10-15 parts of chlorosulfonated polyethylene, 15-20 parts of chloroalkyl phosphate mixture, 5-8 parts of deionized water, 10-15 parts of halogen-free flame retardant and the like. The invention can not only increase the wear resistance, toughness strength and ageing resistance of the conductive foam, but also greatly improve the flame retardant capability of the conductive foam product, ensure the use safety of the conductive foam, ensure the stable conductivity of the conductive foam, reduce the overall production cost and facilitate industrial mass production.
Description
Technical Field
The invention relates to the technical field of manufacturing of conductive foam, in particular to a manufacturing method of conductive foam.
Background
The conductive foam is formed by wrapping conductive cloth on flame-retardant sponge, and after a series of treatments, the conductive foam has good surface conductivity and can be easily fixed on a device to be shielded by an adhesive tape.
At present, after the conductive foam in the market is used for a long time, the phenomena of aging and oxidation can occur, the toughness of the conductive foam is reduced, and meanwhile, the fireproof performance of the conductive foam is greatly reduced, so that the danger probability of electronic communication equipment is greatly increased, and the manufacturing method of the conductive foam with good ageing resistance and fireproof performance is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a manufacturing method of conductive foam, which mainly solves the problems that the existing conductive foam on the market has aging and oxidation phenomena after being used for a long time, the toughness of the conductive foam is reduced, and meanwhile, the fireproof performance of the conductive foam is greatly reduced, so that the danger probability of electronic communication equipment is greatly increased.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme:
a manufacturing method of conductive foam comprises the following steps:
s1: preparing materials, namely 45-50 parts of isocyanate, 50-60 parts of polyether polyol, 20-30 parts of polypropylene, 10-15 parts of chlorosulfonated polyethylene, 15-20 parts of chloroalkyl phosphate mixture, 5-8 parts of deionized water, 10-15 parts of halogen-free flame retardant, 3-9 parts of foaming agent, 4-7 parts of foam stabilizer, 6-10 parts of catalyst and 5-9 parts of antioxidant;
s2: stirring and mixing materials, namely adding the mixture of isocyanate, polyether polyol, polypropylene, chlorosulfonated polyethylene, chloroalkyl phosphate and deionized water in the S1 into a stirrer and uniformly stirring to obtain a mixture A;
s3: secondary stirring, namely adding the halogen-free flame retardant, the foaming agent, the foam stabilizer, the catalyst and the antioxidant in the S1 into the stirrer with the mixture A, and uniformly stirring again to obtain a mixture B;
s4: preparing foam, pouring the mixture B in the step S3 into a foaming mold, standing for 2-5min for foaming and molding to obtain semi-finished flame-retardant foam, and drying the semi-finished flame-retardant foam in a dryer to obtain flame-retardant foam;
s5: cutting, namely cutting the flame-retardant foam in the S4 into the required size by using a foam cutting machine for standby;
s6: cleaning and coating, namely cutting the nickel foil cloth into a size capable of completely wrapping the foam in the S5, then washing the cut nickel foil cloth clean by using clear water, putting the nickel foil cloth into a dryer for drying after washing, and then coating the special adhesive for the foam on the nickel foil cloth by using a glue spreader;
s7: and (3) wrapping, namely wrapping the cut foam with nickel foil cloth coated with the special adhesive for the foam to obtain the conductive foam.
Further, the halogen-free flame retardant in S1 mainly includes one or more of a halogen-based flame retardant (organic chloride and organic bromide), a phosphorus-based flame retardant (red phosphorus, phosphate ester and halogenated phosphate ester), a nitrogen-based flame retardant, an organosilicon-based flame retardant and an inorganic flame retardant.
On the basis of the scheme, the foam stabilizer in S1 is silicone or a silicon-carbon bond Si-C copolymer, and the catalyst in S1 is one or more of amine and tin.
In a still further embodiment of the present invention, the antioxidant in S1 is one of Tea Polyphenol (TP), tocopherol, flavonoids, butyl Hydroxyanisole (BHA), dibutylhydroxytoluene (BHT), and tert-butylhydroquinone (TBHQ).
Further, the catalyst in S1 is one of triethylenediamine, dimethylhexadecylamine, trimethylaniline, triethylenediamine, triethanolamine or ethanolamine.
On the basis of the scheme, the stirring time in the S2 and the S3 is 20-30min, and the stirring speed is 500-600r/min.
As a still further scheme of the present invention, the special adhesive for foam in S6 is one of EVA foam glue or epoxy resin adhesive.
Further, the nickel foil cloth in S6 is composed of a polyimide film, and a copper plating layer and a nickel plating layer sequentially plated on an outer surface of the polyimide film.
(III) advantageous effects
Compared with the prior art, the invention provides a manufacturing method of conductive foam, which has the following beneficial effects:
1. according to the invention, the wear resistance and the toughness strength of the conductive foam can be increased by adding the polypropylene and the chlorosulfonated polyethylene into the raw materials, and a certain anti-aging capability is increased, and then the stability of the mixed structure is increased by adding the foam stabilizer, the catalyst and the antioxidant, and the anti-aging and the oxidation resistance of the conductive foam are increased.
2. According to the invention, by adding the mixture raw materials of the halogen-free flame retardant and the chloroalkyl phosphate, the fireproof effect of the conductive foam cannot be reduced after the conductive foam is used for a plurality of years and is aged, the flame retardant capability of the conductive foam product is greatly improved, and the use safety of the conductive foam is ensured.
3. The raw materials in the invention have proper price, so that the large-scale production of the raw materials has no high cost limit, and meanwhile, the preparation method is simple, has stable conductive performance and low overall production cost, and is beneficial to industrial mass production.
Drawings
Fig. 1 is a schematic flow structure diagram of a method for manufacturing conductive foam according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, a method for manufacturing conductive foam includes the following steps:
s1: preparing materials, namely 50 parts of isocyanate, 60 parts of polyether polyol, 30 parts of polypropylene, 15 parts of chlorosulfonated polyethylene, 20 parts of chloroalkyl phosphate mixture, 8 parts of deionized water, 15 parts of halogen-free flame retardant, 9 parts of foaming agent, 7 parts of foam stabilizer, 10 parts of catalyst and 9 parts of antioxidant, adding the polypropylene and the chlorosulfonated polyethylene into the raw materials to increase the wear resistance and toughness strength of the conductive foam and increase certain ageing resistance, and adding the foam stabilizer, the catalyst and the antioxidant to increase the stability of a mixed structure and increase the ageing resistance and oxidation resistance of the conductive foam;
s2: stirring and mixing materials, namely adding the isocyanate, polyether polyol, polypropylene, chlorosulfonated polyethylene, chloroalkyl phosphate ester mixture and deionized water in the step S1 into a stirrer and uniformly stirring to obtain a mixture A, adding the halogen-free flame retardant and chloroalkyl phosphate ester mixture raw materials to ensure that the fireproof effect of the conductive foam is not reduced after the conductive foam is used for a plurality of years and is aged, greatly improving the flame retardant capability of the conductive foam product and ensuring the use safety of the conductive foam;
s3: secondary stirring, namely adding the halogen-free flame retardant, the foaming agent, the foam stabilizer, the catalyst and the antioxidant in the S1 into the stirrer with the mixture A for stirring uniformly again to obtain a mixture B;
s4: preparing foam, pouring the mixture B in the step S3 into a foaming mold, standing for 5min for foaming and molding to obtain semi-finished flame-retardant foam, and drying the semi-finished flame-retardant foam in a dryer to obtain flame-retardant foam;
s5: cutting, namely cutting the flame-retardant foam in the S4 into the required size by using a foam cutting machine for standby;
s6: cleaning and coating, namely cutting the nickel foil cloth into a size capable of completely wrapping the foam in the S5, then washing the cut nickel foil cloth clean by using clear water, putting the nickel foil cloth into a dryer for drying after washing, and then coating the special adhesive for the foam on the nickel foil cloth by using a glue spreader;
s7: and (2) wrapping, namely wrapping the nickel foil cloth coated with the special adhesive for the foam on the cut foam to obtain the conductive foam.
The halogen-free flame retardant in S1 mainly comprises an organic silicon flame retardant and an inorganic flame retardant, a foam stabilizer in S1 is silicone or a silicon-carbon bond Si-C copolymer, a catalyst in S1 is tin, and an antioxidant in S1 is tert-butyl hydroquinone (TBHQ).
In the invention, the catalyst in S1 is triethylene diamine, the stirring time in S2 and S3 is 30min, the stirring speed is 600r/min, the special adhesive for foam in S6 is EVA foam glue, and the nickel foil cloth in S6 is composed of a polyimide film, and a copper plating layer and a nickel plating layer which are sequentially plated on the outer surface of the polyimide film.
Example 2
Referring to fig. 1, a method for manufacturing conductive foam includes the following steps:
s1: preparing materials, namely 47 parts of isocyanate, 55 parts of polyether polyol, 25 parts of polypropylene, 13 parts of chlorosulfonated polyethylene, 17 parts of chloroalkyl phosphate mixture, 6 parts of deionized water, 11 parts of halogen-free flame retardant, 4 parts of foaming agent, 5 parts of foam stabilizer, 8 parts of catalyst and 7 parts of antioxidant, adding the polypropylene and the chlorosulfonated polyethylene into the raw materials to increase the wear resistance and toughness strength of the conductive foam and increase certain ageing resistance, and adding the foam stabilizer, the catalyst and the antioxidant to increase the stability of a mixed structure and increase the ageing resistance and oxidation resistance of the conductive foam;
s2: stirring and mixing materials, namely adding the isocyanate, polyether glycol, polypropylene, chlorosulfonated polyethylene, chloroalkyl phosphate ester mixture and deionized water in the S1 into a stirrer to be uniformly stirred to obtain a mixture A, and adding the halogen-free flame retardant and chloroalkyl phosphate ester mixture raw materials to ensure that the fireproof effect of the conductive foam is not reduced after the conductive foam is used for a plurality of years and is aged, so that the flame retardant capability of the conductive foam product is greatly improved, and the use safety of the conductive foam is guaranteed;
s3: secondary stirring, namely adding the halogen-free flame retardant, the foaming agent, the foam stabilizer, the catalyst and the antioxidant in the S1 into the stirrer with the mixture A for stirring uniformly again to obtain a mixture B;
s4: preparing foam, pouring the mixture B in the step S3 into a foaming mould, standing for 4min for foaming and molding to obtain a semi-finished flame-retardant foam, and drying the semi-finished flame-retardant foam in a dryer to obtain flame-retardant foam;
s5: cutting, namely cutting the flame-retardant foam in the S4 into the required size by using a foam cutting machine for standby;
s6: cleaning and coating, namely cutting the nickel foil cloth into a size capable of completely wrapping the foam in the S5, then washing the cut nickel foil cloth clean by using clear water, putting the nickel foil cloth into a dryer for drying after washing, and then coating the special adhesive for the foam on the nickel foil cloth by using a glue spreader;
s7: and (2) wrapping, namely wrapping the nickel foil cloth coated with the special bonding agent for the foam on the cut foam to obtain the conductive foam.
The halogen-free flame retardant in S1 mainly comprises halogen flame retardant (organic chloride and organic bromide) and phosphorus flame retardant (red phosphorus, phosphate and halogenated phosphate), the foam stabilizer in S1 is silicone or Si-C copolymer, the catalyst in S1 is amine and tin, and the antioxidant in S1 is Butylated Hydroxyanisole (BHA).
In the invention, the catalyst in S1 is dimethyl hexadecylamine, the stirring time in S2 and S3 is 25min, the stirring speed is 550r/min, the special adhesive for foam in S6 is epoxy resin adhesive, and the nickel foil cloth in S6 is composed of a polyimide film, and a copper plating layer and a nickel plating layer which are sequentially plated on the outer surface of the polyimide film.
Example 3
Referring to fig. 1, a method for manufacturing conductive foam includes the following steps:
s1: preparing materials, namely 45 parts of isocyanate, 50 parts of polyether polyol, 20 parts of polypropylene, 10 parts of chlorosulfonated polyethylene, 15 parts of chloroalkyl phosphate mixture, 5 parts of deionized water, 10 parts of halogen-free flame retardant, 3 parts of foaming agent, 4 parts of foam stabilizer, 6 parts of catalyst and 5 parts of antioxidant, adding polypropylene and chlorosulfonated polyethylene into the raw materials to increase the wear resistance and toughness strength of the conductive foam and increase certain anti-aging capacity, and adding the foam stabilizer, the catalyst and the antioxidant to increase the stability of a mixed structure and increase the anti-aging and oxidation resistance of the conductive foam;
s2: stirring and mixing materials, namely adding the isocyanate, polyether polyol, polypropylene, chlorosulfonated polyethylene, chloroalkyl phosphate ester mixture and deionized water in the step S1 into a stirrer and uniformly stirring to obtain a mixture A, adding the halogen-free flame retardant and chloroalkyl phosphate ester mixture raw materials to ensure that the fireproof effect of the conductive foam is not reduced after the conductive foam is used for a plurality of years and is aged, greatly improving the flame retardant capability of the conductive foam product and ensuring the use safety of the conductive foam;
s3: secondary stirring, namely adding the halogen-free flame retardant, the foaming agent, the foam stabilizer, the catalyst and the antioxidant in the S1 into the stirrer with the mixture A for stirring uniformly again to obtain a mixture B;
s4: preparing foam, pouring the mixture B in the step S3 into a foaming mold, standing for 2min for foaming and molding to obtain semi-finished flame-retardant foam, and drying the semi-finished flame-retardant foam in a dryer to obtain flame-retardant foam;
s5: cutting, namely cutting the flame-retardant foam in the S4 into the required size by using a foam cutting machine for standby;
s6: cleaning and coating, namely cutting the nickel foil cloth into a size capable of completely wrapping the foam in the S5, then washing the cut nickel foil cloth clean by using clear water, putting the nickel foil cloth into a dryer for drying after washing, and then coating the special adhesive for the foam on the nickel foil cloth by using a glue spreader;
s7: and (2) wrapping, namely wrapping the nickel foil cloth coated with the special adhesive for the foam on the cut foam to obtain the conductive foam.
The halogen-free flame retardant in S1 mainly comprises halogen flame retardant (organic chloride and organic bromide), the foam stabilizer in S1 is silicone or silicon-carbon bond Si-C copolymer, the catalyst in S1 is amine, and the antioxidant in S1 is Tea Polyphenol (TP).
In the invention, the catalyst in S1 is triethylenediamine, the stirring time in S2 and S3 is 20min, the stirring speed is 500r/min, the special adhesive for foam cotton in S6 is EVA foam glue, and the nickel foil cloth in S6 is composed of a polyimide film, and a copper plating layer and a nickel plating layer which are sequentially plated on the outer surface of the polyimide film.
In the description herein, it is noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (8)
1. The manufacturing method of the conductive foam is characterized by comprising the following steps:
s1: preparing materials, namely 45-50 parts of isocyanate, 50-60 parts of polyether polyol, 20-30 parts of polypropylene, 10-15 parts of chlorosulfonated polyethylene, 15-20 parts of chloroalkyl phosphate mixture, 5-8 parts of deionized water, 10-15 parts of halogen-free flame retardant, 3-9 parts of foaming agent, 4-7 parts of foam stabilizer, 6-10 parts of catalyst and 5-9 parts of antioxidant;
s2: stirring and mixing the materials, namely adding the mixture of isocyanate, polyether polyol, polypropylene, chlorosulfonated polyethylene and chloroalkyl phosphate in the S1 and deionized water into a stirrer to be uniformly stirred to obtain a mixture A;
s3: secondary stirring, namely adding the halogen-free flame retardant, the foaming agent, the foam stabilizer, the catalyst and the antioxidant in the S1 into the stirrer with the mixture A for stirring uniformly again to obtain a mixture B;
s4: preparing foam, pouring the mixture B in the step S3 into a foaming mold, standing for 2-5min for foaming and molding to obtain semi-finished flame-retardant foam, and drying the semi-finished flame-retardant foam in a dryer to obtain flame-retardant foam;
s5: cutting, namely cutting the flame-retardant foam in the S4 into the required size by using a foam cutting machine for standby;
s6: cleaning and coating, namely cutting the nickel foil cloth into a size capable of completely wrapping the foam in the S5, then washing the cut nickel foil cloth clean by using clear water, putting the nickel foil cloth into a dryer for drying after washing, and then coating the special adhesive for the foam on the nickel foil cloth by using a glue spreader;
s7: and (3) wrapping, namely wrapping the cut foam with nickel foil cloth coated with the special adhesive for the foam to obtain the conductive foam.
2. The method for manufacturing conductive foam according to claim 1, wherein the halogen-free flame retardant in S1 mainly comprises one or more of halogen flame retardants (organic chlorides and organic bromides), phosphorus flame retardants (red phosphorus, phosphate esters and halogenated phosphate esters), nitrogen flame retardants, organosilicon flame retardants and inorganic flame retardants.
3. The method as claimed in claim 2, wherein the foam stabilizer in S1 is silicone or Si-C bonded Si-C copolymer, and the catalyst in S1 is one or more of amine and tin.
4. The method as claimed in claim 3, wherein the antioxidant in S1 is one of Tea Polyphenols (TP), tocopherols, flavonoids, butylated Hydroxyanisole (BHA), butylated Hydroxytoluene (BHT) and tert-butylhydroquinone (TBHQ).
5. The method as claimed in claim 4, wherein the catalyst in S1 is one of triethylenediamine, dimethylhexadecylamine, trimethylaniline, triethylenediamine, triethanolamine, and ethanolamine.
6. The method for manufacturing the conductive foam as claimed in claim 5, wherein the stirring time in S2 and S3 is 20-30min, and the stirring speed is 500-600r/min.
7. The method for manufacturing the conductive foam according to claim 1, wherein the special foam adhesive in the step S6 is one of EVA foam glue and epoxy resin adhesive.
8. The method as claimed in claim 7, wherein the nickel foil cloth in S6 is composed of a polyimide film, and a copper plating layer and a nickel plating layer sequentially plated on an outer surface of the polyimide film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211093026.6A CN115678093A (en) | 2022-09-08 | 2022-09-08 | Manufacturing method of conductive foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211093026.6A CN115678093A (en) | 2022-09-08 | 2022-09-08 | Manufacturing method of conductive foam |
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| CN115678093A true CN115678093A (en) | 2023-02-03 |
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| CN202211093026.6A Pending CN115678093A (en) | 2022-09-08 | 2022-09-08 | Manufacturing method of conductive foam |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313585A (en) * | 2013-05-24 | 2013-09-18 | 深圳市鸿富诚屏蔽材料有限公司 | Conductive foam and preparation method thereof |
| US20170073488A1 (en) * | 2014-03-14 | 2017-03-16 | Xiamen University | Inherent flame retardant rigid polyurethane foam |
| CN110117349A (en) * | 2018-02-07 | 2019-08-13 | 李明 | A kind of superpower flame-retardant sponge and preparation method thereof |
| CN114525029A (en) * | 2021-12-03 | 2022-05-24 | 南通丰盛纺织品有限公司 | Halogen-free flame-retardant sponge and preparation method thereof |
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2022
- 2022-09-08 CN CN202211093026.6A patent/CN115678093A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313585A (en) * | 2013-05-24 | 2013-09-18 | 深圳市鸿富诚屏蔽材料有限公司 | Conductive foam and preparation method thereof |
| US20170073488A1 (en) * | 2014-03-14 | 2017-03-16 | Xiamen University | Inherent flame retardant rigid polyurethane foam |
| CN110117349A (en) * | 2018-02-07 | 2019-08-13 | 李明 | A kind of superpower flame-retardant sponge and preparation method thereof |
| CN114525029A (en) * | 2021-12-03 | 2022-05-24 | 南通丰盛纺织品有限公司 | Halogen-free flame-retardant sponge and preparation method thereof |
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