Thermal insulation material for water tank of solar water heater
A technology for solar water heaters and thermal insulation materials, which is applied in the preparation of thermal insulation materials for solar water heater water tanks and in the field of environmental protection, can solve the problems of poor dimensional stability of foam, poor thermal insulation performance, poor fluidity, etc., and achieves automatic continuous production. Good appearance, avoids the effect of raw material handling
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[0042] The preparation method of the thermal insulation material for the solar water heater water tank comprises the following steps:
[0043] S1: Mix polyurethane, polyether, and polyol, and stir for 8-14 minutes at a temperature of 160-200° C. and a rotation speed of 200-400 r / min to obtain mixture I;
[0044] S2: Under the protection of nitrogen, add silicon carbide fiber, maleic anhydride graft compatibilizer, phosphogypsum, acrylic bridging agent, N,N-dimethylcyclohexylamine, Polyaluminum chloride, silicon carbide whiskers, dioctyl adipate, azodicarbonamide, acrylic foam regulator, silicone amide, at an ultrasonic power of 100-300W and a temperature of 130-150°C, Stir for 3-4 hours at a rotational speed of 200-300r / min to obtain mixture II;
[0045] S3: Add montmorillonite, expanded perlite, antioxidant 1010, ammonium polyphosphate, fatty acid stabilizer, and styrene to the mixture II prepared in step 2. Stir at 200r / min for 0.6-0.8h to obtain mixture III;
[0046] S4:...
Embodiment 1
[0048]An insulating material for a solar water heater tank, which is made of the following raw materials in units of weight: 225 parts of polyurethane, 130 parts of polyether, 100 parts of polyol, 22 parts of montmorillonite, 15 parts of silicon carbide fiber, and 12 parts of expanded perlite 1.5 parts of maleic anhydride graft compatibilizer, 1.2 parts of phosphogypsum, 1.2 parts of acrylic bridging agent, 0.6 parts of N, N-dimethylcyclohexylamine, 1 part of polyaluminum chloride, silicon carbide whiskers 0.9 parts, 0.8 parts of dioctyl adipate, 1 part of ammonium polyphosphate, 0.3 parts of fatty acid stabilizer, 0.3 parts of styrene, 3 parts of azodicarbonamide, 1.5 parts of acrylate foam regulator, anti 0.6 part of oxidizing agent (antioxidant 1010), 0.4 part of silicone amide;
[0049] The polyether is made of the following raw materials by weight: 32 parts of vinyl resin, 3 parts of azobisisobutyrate (ethylene glycol acrylate), 3 parts of epoxy silane coupling agent, di ...
Embodiment 2
[0060] An insulating material for a solar water heater tank, which is made of the following raw materials in units of weight: 155 parts of polyurethane, 85 parts of polyether, 62 parts of polyol, 16 parts of montmorillonite, 10 parts of silicon carbide fiber, and 8 parts of expanded perlite 1 part, 1 part of maleic anhydride graft compatibilizer, 0.8 part of phosphogypsum, 0.8 part of acrylic bridging agent, 0.4 part of N, N-dimethylcyclohexylamine, 0.6 part of polyaluminum chloride, silicon carbide whiskers 0.6 parts, 0.6 parts of dioctyl adipate, 0.5 parts of ammonium polyphosphate, 0.2 parts of fatty acid stabilizers, 0.2 parts of styrene, 2 parts of azodicarbonamide, 1 part of acrylate foam regulator, anti Oxidant (antioxidant 1010) 0.4 part, silicone amide 0.3 part;
[0061] The polyether is made of the following raw materials in units of weight: 25 parts of vinyl resin, 2 parts of azobisisobutyrate (ethylene glycol acrylate), 2 parts of epoxy silane coupling agent, two p...
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