Solar heat absorbing material
A technology for solar heat absorption and raw materials, which is applied in the field of new energy and solar heat absorption materials, can solve the problem of mechanical strength and toughness, poor heat transfer and heat absorption performance, and cannot meet the requirements of solar thermal power generation heat sink heat sink materials and other problems, to achieve the effect of good mechanical strength and toughness, good heat transfer and heat absorption performance, and good performance
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[0046] The preparation method of the solar heat absorbing material comprises the following steps:
[0047] S1: Add ethylene glycol isophthalate, glyceryl stearate, polyethylene, phenylethyl alcohol, silicon nitride, and carbon black to 300-500 parts of deionized water, and the microwave power is 120-250W, and the temperature is 52-58°C, pretreatment for 30-60min at a stirring speed of 100-200r / min, to obtain mixture I;
[0048] S2: Add 2-acrylamido-2-methylpropanesulfonic acid, acetic acid, brominated paraffin, silica sol, and synthetic agents to the mixture I prepared in step 1. The ultrasonic power is 150-300W and the temperature is 60- Treat at 65°C for 120-180min at a stirring speed of 200-400r / min to obtain mixture II;
[0049] The preparation method of described synthetic agent, comprises the following steps:
[0050] S21: Mix the generating agent, coupling agent, compatibilizer, antioxidant, stabilizer, and bridging agent and heat up to 110-130°C, react at a rotation ...
Embodiment 1
[0064] A solar heat absorbing material, which is made of the following raw materials in units of weight: 48 parts of ethylene glycol isophthalate, 30 parts of glyceryl stearate, 27 parts of polyethylene, 2-acrylamide-2- 37 parts of methylpropanesulfonic acid, 15 parts of acetic acid, 13 parts of phenylethyl alcohol, 10 parts of silicon nitride, 10 parts of carbon black, 17 parts of brominated paraffin, 18 parts of silica sol, 12 parts of alkaline clay, 12 parts of synthetic agent, 6 parts of light absorbing agent, 3 parts of light absorption accelerator, 4 parts of nucleating agent;
[0065] The synthetic agent is made of the following raw materials in parts by weight: 1.5 parts of generator, 1.2 parts of coupling agent, 1.2 parts of compatibilizer, 1 part of antioxidant, 1 part of stabilizer, 1 part of bridging agent, regulator 0.7 parts of agent, 0.7 parts of strengthening agent, 0.7 parts of coagulant, 0.6 parts of toughening agent, 0.6 parts of plasticizer, 0.6 parts of th...
Embodiment 2
[0088] A solar heat absorbing material, which is made of the following raw materials by weight: 35 parts of ethylene glycol isophthalate, 26 parts of glyceryl stearate, 24 parts of polyethylene, 2-acrylamide-2- 15 parts of methylpropanesulfonic acid, 12 parts of acetic acid, 10 parts of phenylethyl alcohol, 8 parts of silicon nitride, 8 parts of carbon black, 14 parts of brominated paraffin, 12 parts of silica sol, 10 parts of alkaline clay, 8 parts of synthetic agent, 4 parts of light absorbing agent, 2 parts of light absorption accelerator, 3 parts of nucleating agent;
[0089] The synthetic agent is made of the following raw materials in parts by weight: 1 part of generating agent, 1 part of coupling agent, 1 part of compatibilizer, 0.6 part of antioxidant, 0.6 part of stabilizer, 0.6 part of bridging agent, adjusting 0.4 parts of agent, 0.4 parts of strengthening agent, 0.4 parts of coagulant, 0.4 parts of toughening agent, 0.4 parts of plasticizer, 0.4 parts of thickener,...
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Abstract
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