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发明授权
CN107541122B 一种溶剂型PVDF涂料 有权

一种溶剂型PVDF涂料
摘要：
本发明涉及一种溶剂型PVDF涂料，特别涉及一种高固含量、低粘度的溶剂型PVDF涂料，所述各组分的质量百分比：PVDF树脂20.00‑50.00％、改性树脂8.00‑15.00％、颜料0.00‑30.00％、PTFE微粉0.50～5.00％，余量为溶剂；所述PTFE微粉的平均粒径为5‑40μm。本发明通过在PVDF涂料配方中加入特定粒径大小的PTFE微粉，利用PTFE微粉在溶剂中对PVDF树脂的润滑作用，有效降低涂料的粘度，从而得到高固含量、低粘度的PVDF涂料，所述涂料流动和施工性能优异，可直接进行辊涂涂布和狭缝挤出涂布，或经稀释后用于喷涂，且更环保。
摘要（英）：

The invention relates to a solvent type PVDF coating, in particular to the solvent type PVDF coating with high solid content and low viscosity. The PVDF coating is prepared from, by mass, 20.00-50.00%of PVDF resin, 8.00-15.00% of modified resin, 0.00-30.00% of pigment, 0.50-5.00% of PTFE micro powder, and the balance is a solvent; the average particle size of the PTFE micro powder is 5-40 Mum. Byadding the PTFE micro powder of the specific particle size in a PVDF coating formulation, the lubrication effect of the PTFE micro powder on the PVDF resin in the solvent is utilized, the viscosity of the coating is effectively reduced, so that the PVDF coating with high solid content and low viscosity can be obtained, the flow and the construction performances of the coating are excellent, roller coating and slit extrusion coating can be directly carried out, or the coating can be used for spraying after dilution, and is more environmentally friendly.

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