Viscoelastic damping material with good conductivity and preparing method thereof
A technology of electrical conductivity and damping material, which is applied in the field of viscoelastic damping material, viscoelastic damping material and its preparation, can solve the problems of limited damping effect, limited electrical conductivity, inability to meet the technical indicators of performance, and achieve good damping performance. , The effect of increasing electrical conductivity and wide temperature range
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[0024] Example 1:
[0025] A viscoelastic damping material with good electrical conductivity is obtained by reacting the A component and the B component in a volume ratio of 1:0.8. The A component is calculated in parts by weight and is a semi-prepolymer synthesized from 50 parts of low-functionality polyisocyanate and 30 parts of polyether polyol; the B component is calculated in parts by weight and is composed of 50 parts of diamines. Chain extender, 65 parts of amino-terminated polyether, 10 parts of conductive carbon nanotubes, 1 part of pigment, 2 parts of surfactant, 22 parts of inert filler and 30 parts of additives. The low-functionality polyisocyanate is toluene diisocyanate, and the polyether polyol is polypropylene glycol ether. The diamine chain extender is N,N'-dialkylmethyldiamine; the amino-terminated polyether is an amino-terminated polyether containing a polyethylene oxide main chain. The surfactant is sodium dodecylbenzene sulfonate (SDBS); the filler is quart...
Example Embodiment
[0032] Example 2:
[0033] The difference from Example 1 is that the viscoelastic damping material with good electrical conductivity is obtained by reacting the A component and the B component in a volume ratio of 1:0.9. The A component is calculated in parts by weight and is a semi-prepolymer synthesized from 55 parts of low-functionality polyisocyanate and 40 parts of polyether polyol; the B component is calculated in parts by weight and is composed of 60 parts of diamines. Chain extender, 30 parts amino-terminated polyether, 16 parts conductive carbon nanotubes, 8 parts pigment, 4 parts surfactant, 30 parts inert filler and 1 part auxiliary agent. The low-functionality polyisocyanate is polymethylene diisocyanate, and the polyether polyol is polyglycerol ether. The diamine chain extender is N,N'-dialkylphenylenediamine; the amino-terminated polyether is an amino-terminated polyether containing a propylene oxide main chain. The surfactant is polyvinylpyrrolidone (PVP); the fi...
Example Embodiment
[0040] Example 3:
[0041] The difference from Example 1 is that the viscoelastic damping material with good electrical conductivity is obtained by reacting the A component and the B component in a volume ratio of 1:0.9. Component A is calculated in parts by weight and is a semi-prepolymer synthesized from 60 parts of low-functionality polyisocyanate and 50 parts of polyether polyol; Component B is calculated in parts by weight and is chain extended by 25 parts of diamines It is composed of 40 parts of amino-terminated polyether and 12 parts of conductive carbon nanotubes, 20 parts of pigments, 5 parts of surfactants, 1 part of inert fillers and 10 parts of additives. The low-functionality polyisocyanate is cyclohexane diisocyanate, and the polyether polyol is polytetrahydrofuran ether glycol. The diamine chain extender is 3,3'-dichloro, 4,4'-diaminodiphenylmethane; the amino-terminated polyether is an amino-terminated polyether containing a polyethylene oxide main chain. The s...
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