Composite material purline for agricultural greenhouse
A composite material and greenhouse technology, applied in botany equipment and methods, climate change adaptation, gardening, etc., can solve the problems of heavy steel, self-heavy concrete purlins, and potential safety hazards
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Embodiment 1
[0010] The formula of composite purlins for agricultural greenhouses consists of the following raw materials in parts by weight: 35 parts of unsaturated resin, 15 parts of low shrinkage agent, 20 parts of high impact SBS, 30 parts of filler, 30 parts of reinforcing fiber, 2 parts of curing agent, 2 parts of release agent, 60 parts of filling material, 8 parts of flame retardant, 2 parts of process aid, and 2 parts of accelerator.
Embodiment 2
[0012] The formula of composite purlins for agricultural greenhouses consists of the following raw materials in parts by weight: 30 parts of unsaturated resin, 10 parts of low shrinkage agent, 10 parts of high impact SBS, 20 parts of filler, 20 parts of reinforcing fiber, 1 part of curing agent, 1 part of release agent, 40 parts of filling material, 5 parts of flame retardant, 1 part of process aid, and 1 part of accelerator.
Embodiment 3
[0014] The formula of composite purlins for agricultural greenhouses consists of the following raw materials in parts by weight: 33 parts of unsaturated resin, 12 parts of low shrinkage agent, 15 parts of high-impact SBS, 25 parts of filler, 25 parts of reinforcing fiber, and 1-2 parts of curing agent 1-2 parts, release agent 1-2 parts, filler material 50 parts, flame retardant 7 parts, process aid 1-2 parts, accelerator 1-2 parts.
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