PDLC composition with high bonding force

A technology of composition and photocuring prepolymer, which is applied in the direction of liquid crystal materials, chemical instruments and methods, etc., can solve the problems of low surface energy of PET substrates and cannot meet the use of PDLC materials on PET substrates, and solve the problem of bonding Poor power, excellent photoelectric performance, strong shielding effect

Inactive Publication Date: 2016-03-23
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] PDLC has many important parameters, including photoelectric response curve, transmittance, driving voltage, adhesion, life, etc., among which adhesion is a very important parameter. At this stage, PDLC is mainly used for PET substrates coated with ITO. materials, and the surface energy of PET substrates is low, so many PDLC products on the market at this stage have certain defects in adhesion, which cannot meet the use of PDLC materials on PET substrates.

Method used

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  • PDLC composition with high bonding force
  • PDLC composition with high bonding force

Examples

Experimental program
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Effect test

Embodiment 1

[0048] The liquid crystal PDLC dimming material 1 includes the following components, 12 parts of acrylic polyurethane CN704 (Sartomer Guangzhou Chemical Co., Ltd.), 23 parts by mass of hydroxypropyl acrylate, liquid crystal material SL-79 (Chengzhi Yonghua Display Materials Co., Ltd.) ) 64.9 parts by mass, photoinitiator UV1840.1 parts by mass, 1 part by mass of spacer rigid microbeads (10um), 1 part by mass of phosphorus element providing agent glyceric acid dimethacrylate.

Embodiment 2

[0050] The liquid crystal PDLC dimming material 1 includes the following components, 14 parts by mass of acrylic polyurethane CN966J75NS (Sartomer Guangzhou Chemical Co., Ltd.), 24 parts by mass of lauryl acrylate, and 61.5 parts by mass of liquid crystal material SLC1717 (Chengzhi Yonghua Display Materials Co., Ltd.). Parts by mass, 0.5 parts by mass of photoinitiator UV184, 2 parts by mass of spacer rigid microbeads (particle size 15um), 2 parts by mass of phosphorus element providing agent acryloyloxyethylphenyl phosphate.

Embodiment 3

[0052] The liquid crystal PDLC dimming material 1 includes the following components, 17 parts by mass of acrylic polyurethane UV65 (Shanghai Kuer Industrial Co., Ltd.), 12 parts by mass of lauryl acrylate, 3 parts by mass of isobornyl acrylate, 1,6-hexanediol 3 parts by mass of diacrylate, 6 parts by mass of hydroxypropyl acrylate, 58 parts by mass of liquid crystal material SL-16 (Chengzhi Yonghua Display Material Co., Ltd.), 1 part by mass of photoinitiator TPO, spacer rigid microbeads (particle diameter 15um ) 2 mass parts, phosphorus element providing agent 4-methacryloyloxyethyl trimellitic anhydride 3 mass parts.

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Abstract

The invention discloses a PDLC composition with a high bonding force. The PDLC composition is prepared from the following raw materials: light-cured prepolymer monomers, a liquid crystal material, a photoinitiator, spacers and a phosphor element providing agent through a light curing reaction. The light adjusting material is applied in a light adjusting membrane or light adjusting glass, has excellent bonding intensity, excellent photoelectric performances and a good service life performance, the problem can be solved that the bonding force is not good when a light adjusting material is used on a PET base material, and different demands of users are met. Compared with the present conventional PDLC light adjusting membranes at market, the PDLC light adjusting membrane has a high membrane transmittance and an obviously low driving voltage, the bonding force performance is excellent, and the provided PDLC light adjusting membrane has obvious visual effects and applicability.

Description

technical field [0001] The invention belongs to the field of liquid crystals and relates to a PDLC composition with high adhesive force. Background technique [0002] Polymer Dispersed Liquid Crystal (PDLC for short) is to disperse liquid crystal with micron-scale small droplets in the organic solid polymer matrix. Since the optical axis of the small droplets composed of liquid crystal molecules is in a free orientation, its refractive index It does not match the refractive index of the matrix, and when the light passes through the matrix, it is strongly scattered by the droplets and presents an opaque opalescent state or a translucent state. Applying an electric field can adjust the orientation of the optical axis of the liquid crystal droplet, and when the refractive index of the two is matched, it will appear transparent. When the electric field is removed, the liquid crystal droplet returns to the original astigmatism state, thereby realizing the conversion of the two s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F283/02C08F283/12C08F283/10C08F220/28C08F220/18C09K19/54G02F1/1334
CPCG02F1/1334C09K19/542C08F283/006C08F283/02C08F283/10C08F283/12C08F220/1812C08F220/281
Inventor 郭剑隋岩李正强华瑞茂
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
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