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Liquid crystal mixture and temperature-responsive infrared reflection device

A technology of infrared reflection and temperature response, applied in liquid crystal materials, instruments, optical components, etc., can solve problems such as changes in optical properties and unsatisfactory coated glass

Inactive Publication Date: 2018-03-23
SOUTH CHINA NORMAL UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the coated glass is formed, its optical properties will not change with the environment
As the diversity of climate changes, coated glass cannot meet people's needs

Method used

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  • Liquid crystal mixture and temperature-responsive infrared reflection device
  • Liquid crystal mixture and temperature-responsive infrared reflection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 25 parts by mass of potassium laurate, 6.8 parts by mass of heavy water, 65.45 parts by mass of n-decyl alcohol and 2.75 parts by mass of chiral dopant S1011, and mix them uniformly to obtain a liquid crystal mixture. The structural formula of described potassium laurate is as follows:

[0018] The chiral dopant S1011 used in the present invention is similar to the structural formula of R1011, but the chirality is opposite, and its structural formula is:

Embodiment 2

[0020] Take 25 parts by mass of potassium laurate, 6.5 parts by mass of heavy water, 65.73 parts by mass of n-octanol and 2.77 parts by mass of chiral dopant R1011, and mix them uniformly to obtain a liquid crystal mixture.

Embodiment 3

[0022] Take 27.52 parts by mass of potassium laurate, 6.89 parts by mass of heavy water, 62.8 parts by mass of isocecyl alcohol and 2.79 parts by mass of chiral dopant R1011, and mix them uniformly to obtain a liquid crystal mixture.

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Abstract

The invention discloses a liquid crystal mixture and a temperature-responsive infrared reflection device. Infrared lights can transmit the infrared reflection device made from the liquid crystal mixture containing potassium laurate in a non-working temperature range, a chiral doping agent makes the potassium laurate form a cholesteryl phase in a working temperature range, the birefringence value of the potassium laurate gradually increases with the rising of the temperature in a range of 12.5-26 DEG C in order to continuously increase the infrared reflection bandwidth of the device, and the birefringence value of the potassium laurate gradually decreases with the rising of the temperature in a range of 26-54.5 DEG C in order to continuously reduce the infrared reflection bandwidth of the device, so the change of the infrared reflection bandwidth of the infrared reflection device with the change of the temperature is achieved by adjusting the material proportion of the liquid crystal mixture containing potassium laurate, thereby the device can meet people's demands when the environment changes, and can be applied to the fields of household supplies and buildings.

Description

technical field [0001] The invention relates to the technical field of optical devices, in particular to a liquid crystal mixture and a temperature-responsive infrared reflective device. Background technique [0002] In order to achieve the purpose of infrared light transmission and reflection in sunlight, glass is generally coated so that a certain wavelength of infrared light can be reflected or transmitted by the glass window. Coated glass is coated with one or more layers of metal, alloy or metal compound films on the surface of the glass to change the optical properties of the glass and achieve the purpose of reflecting or transmitting light of a certain wavelength. However, after the coated glass is formed, its optical properties cannot change with the environment. With the diversity of climate changes, coated glass cannot meet people's needs. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a liquid cryst...

Claims

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Application Information

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IPC IPC(8): C09K19/40C09K19/58G02F1/13G02B5/26
CPCC09K19/40C09K19/586G02B5/26G02F1/132C07C53/126C09K19/52
Inventor 胡小文曾伟杰鞠纯赵威周国富
Owner SOUTH CHINA NORMAL UNIVERSITY
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