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A kind of preparation method of high light transmittance anti-fog film coating

A thin film and anti-fog technology, applied in the field of UV curing, can solve the problems that cannot meet the requirements of miniaturization, multi-function and integration of materials and devices

Active Publication Date: 2016-05-25
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the continuous expansion of the field of optical applications, traditional optical materials can no longer meet people's requirements for the miniaturization, multi-function and integration of materials and devices, and the research and preparation of new multi-functional optical materials has attracted widespread attention.
At present, there are few reports on the preparation of high-transmittance anti-fog film coatings by integrating UV curing technology and organic-inorganic hybrid technology. Miniaturization, multi-functionalization, integration and other requirements, and are widely used in many different fields such as resin lenses, automotive glass, optical components, functional materials and information storage devices

Method used

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  • A kind of preparation method of high light transmittance anti-fog film coating
  • A kind of preparation method of high light transmittance anti-fog film coating
  • A kind of preparation method of high light transmittance anti-fog film coating

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Experimental program
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Effect test

Embodiment 1

[0014] (1) Synthesis of high light-transmitting hydrophilic UV prepolymer, the quality of each component is as follows:

[0015]

[0016] Weigh 15.6g of IPDI, place it in a three-necked flask, add dropwise a mixture of 24g of triethylene glycol isophthalate-5-sodium sulfonate and 15g of polyethylene glycol 400 while stirring, about 30min, drip during 3-4d Dibutyltin dilaurate (DBTDL), temperature controlled at 50°C. After the dropwise addition, the reaction was continued for 1 h, and the change of NCO value in the system was monitored by the di-n-butylamine method. When the theoretical value was reached, 1.8 g DMPA was added, and the temperature was raised to 70 ° C at the same time; after the reaction for 6-7 h, the di-n-butylamine The change of NCO value in the system was monitored by method. When the theoretical value was reached, 3.6 g of pentaerythritol triacrylate (PETA) was added to continue the reaction. The viscosity of the system was controlled by acetone througho...

Embodiment 2

[0024] (1) Synthesis of high light-transmitting hydrophilic UV prepolymer, the quality of each component is as follows:

[0025]

[0026] Weigh 15.6g of IPDI, place it in a three-necked flask, add dropwise a mixture of 24g of triethylene glycol isophthalate-5-sodium sulfonate and 15g of polyethylene glycol 400 while stirring, about 30min, drip during 3-4d Dibutyltin dilaurate (DBTDL), temperature controlled at 50°C. After the dropwise addition, the reaction was continued for 1 h, and the change of NCO value in the system was monitored by the di-n-butylamine method. When the theoretical value was reached, 1.8 g DMPA was added, and the temperature was raised to 70 ° C at the same time; after the reaction for 6-7 h, the di-n-butylamine The change of NCO value in the system was monitored by method. When the theoretical value was reached, 3.6 g of pentaerythritol triacrylate (PETA) was added to continue the reaction. The viscosity of the system was controlled by acetone througho...

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Abstract

Provided is a preparation method for an antifogging thin film coating with high light transmission. M-phthalic acid triethylene glycol ester-5-sodium sulfonate (self made), polyethylene glycol 400, isophorone diisocyanate and pentaerythritol triacrylate are employed as main raw materials, dibutyltin dilaurate is employed as a catalyst, dimethylolpropionic acid is employed as a chain extender, acetone is employed as a solvent, and hydrophilic UV prepolymers are prepared; ethyl orthosilicate is employed as a precursor, gamma-methacryloxy propyl trimethoxysilane is employed as a modifier, a sol-gel method is employed, and uniform and stable modified SiO2 sol is prepared; the hydrophilic UV prepolymers and the modified SiO2 sol are subjected to hybridization through a UV curing way, and a thin film coating is obtained. The prepared thin film coating has good hardness and adhesive force, water resistance and high light transmission and good antifogging effects, and can be used for antifog of surfaces of glass and eyeglass. The preparation technology of the thin film coating accords with green environmental protection concepts, curing and film forming are fast, and comprehensive performances are good. The antifogging thin film coating has good market prospect and is suitable for popularization and application.

Description

technical field [0001] The invention relates to a preparation method of a high-light-transmitting anti-fogging film coating, belonging to the field of ultraviolet light curing. Background technique [0002] In recent years, with the continuous expansion of optical applications, traditional optical materials can no longer meet people's requirements for miniaturization, multi-function and integration of materials and devices. Research and preparation of multi-functional new optical materials have attracted extensive attention . At present, there are few reports on the preparation of high-transmittance anti-fog film coatings by integrating UV curing technology and organic-inorganic hybrid technology. It is widely used in many different fields such as resin lenses, automotive glass, optical components, functional materials and information storage devices. Therefore, the preparation of high light-transmitting anti-fog thin film coatings is the mainstream research direction of o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/14C09D7/12C09D5/00C08G18/75C08G18/67C09C1/28C09C3/12
Inventor 姚伯龙李根龙韩兵王利魁张国标齐家鹏
Owner JIANGNAN UNIV
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