A kind of cable material for self-repairing electromagnetic shielding cable and preparation method thereof
A technology of electromagnetic shielding and cable materials, applied in the field of functional materials, to achieve the effects of wide sources, enhanced shielding effect, and convenient large-scale application
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Embodiment 1
[0028] A cable material for a self-healing electromagnetic shielding cable is composed of the following components by weight:
[0029]
[0030] A preparation method of a cable material for a self-repairing electromagnetic shielding cable, comprising the following steps:
[0031] (1) take by weighing graphene powder, formaldehyde and sodium hydroxide respectively by weight ratio 1: 40: 2, after mixing, be warming up to 75 ℃, be incubated 75min, filter, adopt the solid product that tap water washing filter obtains to filtrate in Then, the solid product obtained by filtration was dried at 105 ° C for 30 h to obtain pretreated graphene powder; the average particle size (D50) of the graphene powder was 5 μm;
[0032] (2) weigh water, pretreated graphene powder, maleic anhydride and ceric ammonium nitrate respectively by weight ratio 100: 2: 40: 1.2, after adding ceric ammonium nitrate into water and stirring and dissolving, pretreated graphene The powder and maleic anhydride we...
Embodiment 2
[0039] A cable material for a self-healing electromagnetic shielding cable is composed of the following components by weight:
[0040]
[0041] A preparation method of a cable material for a self-repairing electromagnetic shielding cable, comprising the following steps:
[0042] (1) take by weighing graphene powder, formaldehyde and sodium hydroxide respectively by weight ratio 1: 30: 1, after mixing, be warming up to 70 ℃, be incubated 60min, filter, adopt the solid product that tap water washing filter obtains to filtrate in Then, the solid product obtained by filtration was dried at 100 ° C for 24 hours to obtain pretreated graphene powder; the average particle size (D50) of the graphene powder was 3 μm;
[0043] (2) weigh water, pretreated graphene powder, maleic anhydride and ceric ammonium nitrate respectively by weight ratio 100: 1: 30: 0.8, after adding ceric ammonium nitrate into water and stirring and dissolving, pretreated graphene The powder and maleic anhydride ...
Embodiment 3
[0050] A cable material for a self-healing electromagnetic shielding cable is composed of the following components by weight:
[0051]
[0052] A preparation method of a cable material for a self-repairing electromagnetic shielding cable, comprising the following steps:
[0053] (1) take by weighing graphene powder, formaldehyde and sodium hydroxide respectively by weight ratio 1: 50: 3, after mixing, be warming up to 80 ℃, be incubated 90min, filter, adopt the solid product that tap water washing filter obtains to filtrate in Then, the solid product obtained by filtration was dried at 110 ° C for 36 hours to obtain pretreated graphene powder; the average particle size (D50) of the graphene powder was 7 μm;
[0054] (2) weigh water, pretreated graphene powder, maleic anhydride and ceric ammonium nitrate respectively by weight ratio 100:3:50:1.6, after adding ceric ammonium nitrate to water and stirring and dissolving, pretreated graphene The powder and maleic anhydride wer...
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