Nano-zinc oxide modified composite plate and preparation process thereof
A technology of nano-zinc oxide and nano-zinc oxide powder, which is applied in the field of materials, can solve problems such as poor surface finish, poor thermal stability, and poor tensile strength, and achieve the effects of good thermal stability, improved smoothness, and improved performance
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[0023] Such as figure 1 As shown, the nano-zinc oxide modified composite board of the present invention is composed of three layers. From top to bottom, they are PMMA layer 1, nano-zinc oxide modified layer 2, and PMMA layer 3. The nano-zinc oxide modified layer 2 Containing nano zinc oxide and polyvinyl chloride, the mass ratio of nano zinc oxide in polyvinyl chloride is 0.6% to 1%, nano zinc oxide is uniformly dispersed in polyvinyl chloride, and the thickness of PMMA layer 1 and PMMA layer 3 is 0.45 ~0.55mm. Before modification, the tensile strength of PVC sheet is 15Mpa, and the impact strength is 6kJ / m 2 , While the tensile strength of the nano-zinc oxide modified composite board reaches 78MPa, and the impact strength is doubled to 13.6kJ / m 2 .
[0024] The nano zinc oxide modified composite board of the present invention has the advantages of high smoothness, high thermal stability, aging resistance, good tensile performance and high impact strength, while retaining the fl...
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