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Ultraviolet light curing anti fogging coating composite and preparing method thereof

A technology of anti-fog coating and composition, which is applied in the direction of polyester coating, polyether coating, epoxy resin coating, etc., can solve the problems of small actual production and complex process, and achieve high production efficiency, simple production process, and anti-fogging Excellent effect of fog performance

Inactive Publication Date: 2009-12-16
GUANGZHOU HUMAN CHEM
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  • Description
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AI Technical Summary

Problems solved by technology

However, this composition is only suitable for use on polycarbonate plastics, and a PET film needs to be attached to the coating surface during the preparation process. The process is complicated and not suitable for actual production.

Method used

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  • Ultraviolet light curing anti fogging coating composite and preparing method thereof
  • Ultraviolet light curing anti fogging coating composite and preparing method thereof
  • Ultraviolet light curing anti fogging coating composite and preparing method thereof

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the examples, but not limited thereto.

[0034] The formula of embodiment and comparative example is as shown in table 1, and hydrophilic active oligomer is prepared by following method in the table:

[0035] With the PEG of different molecular weight (the molecular weight of PEG used among the embodiment 1-10 is respectively 3000,2000,400,600,1000,1500,1000,1000,1000 and 1000; The molecular weight of PEG among the comparative example A3-4 is respectively 1000 and 1500) react with toluene diisocyanate (TDI) or isophorone diisocyanate (IPDI) at 55-60° C. for 2 to 3 hours to obtain a polyurethane resin with terminal isocyanate groups, and then the polyurethane resin with terminal isocyanate groups is combined with The hydroxyethyl (meth)acrylate is reacted at 75-80° C. for 3-4 hours to obtain the hydrophilic active oligomer.

[0036] The preparation method of each embodiment and comparati...

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Abstract

The invention relates to an ultraviolet light curing anti fogging coating composite with fine anti fogging effect and a preparing method thereof. The ultraviolet light curing coating composite comprises hydrophilic activated oligomer, hydrophobic light curing resin, hydrophilic polymeric monomers, hydrophobic activated diluent, photoinitiator and additive. The method comprises the following steps: accurately weighting and placing the hydrophilic activated oligomer and the hydrophobic light curing resin into a container, adding the hydrophilic polymeric monomers, the activated diluent and the additive in turn to mix for 10min, and then adding the photoinitiator, mixing for 5min to obtain the composite in the invention which is preserved in dark place. The ultraviolet light curing anti fogging coating composite provided by the invention can be coated on thermal sensitivity plastic base material such as PC, PMMA, PET and the like; the coating after the ultraviolet light curing has fine hydrophily and physical performance. The invention has fine anti fogging and fog inhibiting effect, and the coating has good adhesive force and water resistance which can ensure the durability of the anti fogging performance.

Description

technical field [0001] The invention belongs to the technical field of ultraviolet light curing coatings, in particular to an ultraviolet light curing anti-fog coating composition. Background technique [0002] We need to use some transparent or optical devices in many situations in our daily life, such as glass and transparent plastic materials used in windows, mirrors, lighting fixtures, lenses, glasses, masks or protective screens. These materials fog up below the dew point in the presence of atmospheric humidity. Ultra-fine water droplets deposit on the surface, greatly reducing transparency. The phenomenon of fogging has attracted more and more people's attention, ranging from inconvenience to people's lives, to affecting the normal operation of vehicles, and then to industrial production and economic life. [0003] In the past, simple anti-fog mirrors were usually equipped with an electric heater on the back of the mirror to drive away the foggy moisture. However, t...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D167/06C09D175/14C09D171/00C09D133/04C09D5/00
Inventor 刘建伟刘世基张琴李鹏
Owner GUANGZHOU HUMAN CHEM
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