Silicon PU for plastic field material
A field and plastic technology, used in buildings, roads, pavements, etc., can solve problems such as affecting the service life of silicon PU, loss of strength, hardening, etc., and achieve the effect of not easy wind and rain erosion, improved compactness, and good UV resistance.
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[0083] Example 1
[0084] A silicon PU for plastic field materials, including the following components in parts by mass:
[0085] Polyether polyol 200kg; plasticizer 85kg; dispersant 0.5kg; talcum powder 660kg; kaolin 60kg; pigment 13kg; polyurethane curing agent 43kg; silicon powder 30kg; defoamer 0.5kg; leveling agent 0.5kg; dicarbonate Methyl ester 96kg; methyl o-hydroxybenzoate 28kg; cellulose triacetate 0.5kg; fatty alcohol polyoxyethylene ether 2kg.
[0086] In this embodiment, the particle size of talc is 400 mesh.
[0087] In this embodiment, the particle size of kaolin is 600 mesh.
[0088] The preparation method of silicon PU for plastic field materials is as follows:
[0089] S1. Add 200kg of polyether polyol and 85kg of plasticizer into the reactor;
[0090] S2. Raise the temperature in the reactor to 40°C, add 660kg of talcum powder, 60kg of kaolin and 13kg of coloring material, and increase the temperature while adding;
[0091] S3. Raise the temperature in the reaction kett...
Example Embodiment
[0095] Example 2
[0096] A silicon PU for plastic field materials, including the following components in parts by mass:
[0097] Polyether polyol 250kg; plasticizer 70kg; dispersant 1kg; talc powder 655kg; kaolin 35kg; pigment 7kg; polyurethane curing agent 45kg; silicon powder 25kg; defoamer 3kg; leveling agent 1kg; dimethyl carbonate 88kg ; Methyl o-hydroxybenzoate 38kg; triacetate cellulose 1.3kg; fatty alcohol polyoxyethylene ether 0.5kg.
[0098] In this embodiment, the particle size of talc is 600 mesh.
[0099] In this embodiment, the particle size of kaolin is 700 mesh.
[0100] The preparation method of silicon PU for plastic field materials is as follows:
[0101] S1. Add 250kg of polyether polyol and 70kg of plasticizer into the reactor;
[0102] S2. Raise the temperature in the reactor to 45°C, add 655kg of talc powder, 35kg of kaolin and 7kg of colorant, and increase the temperature while adding;
[0103] S3. Raise the temperature in the reactor to 168°C, and perform dehydra...
Example Embodiment
[0107] Example 3
[0108] A silicon PU for plastic field materials, including the following components in parts by mass:
[0109] Polyether polyol 280kg; plasticizer 83kg; dispersant 0.3kg; talc powder 650kg; kaolin 30kg; pigment 11kg; polyurethane curing agent 35kg; silicon powder 15kg; defoamer 1.5kg; leveling agent 0.1kg; dicarbonate Methyl ester 85kg; methyl o-hydroxybenzoate 25kg; cellulose triacetate 1.5kg; fatty alcohol polyoxyethylene ether 1.5kg.
[0110] In this embodiment, the particle size of talc is 800 mesh.
[0111] In this embodiment, the particle size of kaolin is 800 mesh.
[0112] The preparation method of silicon PU for plastic field materials is as follows:
[0113] S1. Add 280kg of polyether polyol and 83kg of plasticizer into the reactor;
[0114] S2. Raise the temperature in the reaction kettle to 50°C, add 650kg of talc powder, 30kg of kaolin and 11kg of pigment, and increase the temperature while adding;
[0115] S3. Raise the temperature in the reactor to 170°C ...
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