UV photocuring topcoat

Abstract

The invention discloses UV photocuring topcoat. The UV photocuring topcoat is prepared from, by weight, 20-25% of cycloaliphatic epoxy resin CER-170, 8-12% of aliphatic urethane acrylate DH-318, 30-35% of HDDA, 5-10% of benzil dimethyl ketal, 10-20% of isopropanol, 10-15% of modified mica powder, 5-10% of talcum powder, 1-2% of dispersing agents and 0.5-0.8% of antifoaming agents. The UV photocuring topcoat is low in volatility, low in smell, low in environmental pollution, high in hardness, good in hand feeling and glossiness, high in curing speed, high in production efficiency, capable of being cured at the normal temperature and applicable to a variety of substrates; by means of the UV photocuring topcoat, energy is saved, and energy consumption accounts for 1 / 5 that of a traditional coating; performance indexes of all aspects such as coating transparency, acid and alkali resistance, salt spray resistance and resistance to organic solvent such as gasoline are high, a paint film of the topcoat is particularly plumpy, and gloss of the topcoat is particularly outstanding.

Description

Technical field [0001] The invention relates to a coating, in particular to a UV light curing top coating. technical background [0002] Ultraviolet (UV) curing coating and its coating technology are new surface treatment technologies that emerged in the 1980s. This type of coating uses ultraviolet radiation to initiate resin curing. Compared with existing thermosetting coatings, it has the advantages of fast curing, energy saving, curing at room temperature, less pollution, and superior coating performance. It is a new generation of green chemical products. Compared with coatings cured by traditional processes, UV-curable coatings show better hand feeling and gloss, so UV-curable topcoats have become one of the hot spots in the field of UVCC. It can be used in building materials, sporting goods, electronic communications, optical devices, packaging materials, automotive parts and other fields, and is a new material with a wide range of applications. However, for a long time, t...

AI Technical Summary

Problems solved by technology

But for a long time, the technology and product market of this product have been monopolized by foreign companies, and its price has remained high, so the research and development of domestic UV light-curing top coating can not wait.

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