Preparation method for antifogging thin film coating with high light transmission

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

Active Publication Date: 2014-04-09
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 re

Method used

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  • Preparation method for antifogging thin film coating with high light transmission
  • Preparation method for antifogging thin film coating with high light transmission
  • Preparation method for antifogging thin film coating with high light transmission

Examples

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, and add dropwise a mixture of 24g of triethylene glycol diisophthalate-5-sodium sulfonate and 15g of polyethylene glycol 400 while stirring, for about 30min, during which Drop 3-4d of dibutyltin dilaurate (DBTDL), and control the temperature at 50°C. After the dropwise addition, continue to react for 1 hour, and monitor the change of NCO value in the system by the di-n-butylamine method. When the theoretical value is reached, add 1.8g of DMPA and raise the temperature to 70°C; Amine method was used to monitor the change of NCO value in the system. When the theoretical value was reached, 3.6g of pentaerythritol triacrylate (PETA) was added to continue the reaction. Acetone was used to control the viscosity of the system throughout the reaction process. When the NCO reaches the theoret...

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, and add dropwise a mixture of 24g of triethylene glycol diisophthalate-5-sodium sulfonate and 15g of polyethylene glycol 400 while stirring, for about 30min, during which Drop 3-4d of dibutyltin dilaurate (DBTDL), and control the temperature at 50°C. After the dropwise addition, continue to react for 1 hour, monitor the change of NCO value in the system by the di-n-butylamine method, when the theoretical value is reached, add 1.8g DMPA, and raise the temperature to 70°C; Amine method was used to monitor the change of NCO value in the system. When the theoretical value was reached, 3.6g of pentaerythritol triacrylate (PETA) was added to continue the reaction. Acetone was used to control the viscosity of the system throughout the reaction process. When the NCO reaches the theoretical v...

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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 discloses a preparation method of a high-transparency anti-fog film coating, which belongs to the field of ultraviolet light curing. Background technique [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-functionality, 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. Therefore, the preparation o...

Claims

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Application Information

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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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