Composite low thermal conductivity material and preparation method thereof
A low thermal conductivity, outer layer material technology, applied in heat exchange materials, chemical instruments and methods, and other household appliances, etc., can solve the problems of insufficient corrosion resistance, low strength, and high thermal conductivity, which is conducive to molding and avoids flow. Problems, avoid the effect of running glue
Inactive Publication Date: 2017-11-24
嘉兴立一新材料股份有限公司
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Problems solved by technology
The advantages of organic materials are sufficient raw materials, low thermal conductivity of products, convenient construction, and mature technology. Meet the design and use requirements
Moreover, the existing composite low thermal conductivity materials have insufficient corrosion resistance, which limits their application in special fields, which in turn limits the development of special industries
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0040] Embodiment 1 A preparation method of a composite low thermal conductivity material, comprising the following steps:
[0041] (1) Add graphene oxide into N,N-dimethyldodecylamine, stir at 100°C for 1 hour, add diphenoxyphosphine and strontium titanate, stir for 0.5 hour, then add ammonium hexachloroiridate, stir for 10 Minutes, natural cooling, to obtain graphene composite metal system; polyester resin, graphene composite metal system, naphthol phenolic resin, maleic anhydride, nanoporous nickel oxide are dry ground and then added to the extruder, at 195 ° C Particles are obtained by extrusion; then the outer layer material is prepared by using a film making machine;
[0042] (2) Add PCBM, a fullerene derivative, to cyanate, react at 110°C for 20 minutes, add diethylphenylphosphate and tetraethoxysilane, and add triglycidyl isocyanate monomer after reacting for 30 minutes After stirring at 120°C for 2 hours, add isotridecyl acrylate and polyurea formaldehyde, continue t...
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The invention provides a composite low thermal conductivity material and a preparation method thereof. The preparation method is characterized in that a precursor system of the composite low thermal conductivity material is obtained by sequentially combining an outer layer material, a middle layer material and an inner layer material, and the composite low thermal conductivity material is obtained by means of hot pressing. Due to the selection and compatibility of resin matrix and small molecular substances and the combination of a reasonable preparation technology, the heat insulation composite material prepared by premolding and then mould pressing has excellent heat resistance and flame retardance as well as good processing property; the outer layer material is provided with graphene, and the corrosion resistance of the material is improved by the graphene together with N,N-dimethyl dodecylamine and strontium titanate.
Description
technical field [0001] The invention belongs to the technical field of composite low thermal conductivity materials, and in particular relates to a composite low thermal conductivity material and a preparation method thereof. Background technique [0002] Composite low thermal conductivity materials are widely used in metallurgy, non-ferrous metals, machinery, petrochemical, electric power and other fields. Composite low thermal conductivity material has the characteristics of low density, high flexibility, waterproof, etc., can collect excess heat, has good randomness, has no cavity, and can avoid tearing and falling off under negative wind pressure. Composite low thermal conductivity materials are generally divided into inorganic and organic. The advantages of organic materials are sufficient raw materials, low thermal conductivity of products, convenient construction, and mature technology. Meet the design requirements. Moreover, the existing composite low thermal cond...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C08L61/06C08L67/02C08L61/24C08L81/02C08L25/06C08L61/14C08L29/04C08K13/04C08K9/04C08K7/24C08K3/04C08K3/24C08K3/16C09K5/14B32B27/42B32B9/00B32B9/04B32B27/28
CPCB32B9/00B32B9/045B32B27/286B32B27/42B32B2307/306B32B2307/3065B32B2307/714B32B2607/02C08K3/04C08K9/04C08L61/06C08L81/02C08L2201/02C08L2201/08C08L2205/035C08L2205/05C08L2205/08C08L2312/00C09K5/14C08L67/02C08K13/04C08K7/24C08K3/24C08K3/16C08L61/24C08L25/06C08L61/14C08L29/04C08K9/08
Inventor 韩建梁国正王志龙
Owner 嘉兴立一新材料股份有限公司