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. 2018 Dec 4;8(70):40347-40357.
doi: 10.1039/c8ra07181k. eCollection 2018 Nov 28.

A novel optical diffuser based on polymer micro-balls-filled nematic liquid crystal composite film

Le Zhou  1 , Cheng Han  2 , Cuihong Zhang  3 , Lanying Zhang  1   4
Affiliations

A novel optical diffuser based on polymer micro-balls-filled nematic liquid crystal composite film

Le Zhou et al. RSC Adv. .

Abstract

In this study, optical diffusers based on epoxy resin/thiol/nematic liquid crystal composites were prepared using different curing temperatures, curing times and curing agents (thiols). Additionally, the effects of the curing temperatures, the curing times and the thiols on the polymer ball microstructures and the optical properties of optical diffusers were investigated systematically. For applications of optical diffusers, the optimized curing temperature has been achieved by combining the high transmittance and high haze. A novel optical diffuser with ultrahigh transmittance (>94.0%), ultrahigh haze (>94.0%) and excellent diffusing ability has been obtained, of which the polymer morphology is single polymer micro-balls without aggregation.

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Conflict of interest statement

There are no conflicts to declare.

Figures

Fig. 1
Fig. 1. The chemical structures of E-51, RDE, TTMP, DHMP and DMAP.
Fig. 2
Fig. 2. The polymer morphologies of optical diffusers A1–A9.
Fig. 3
Fig. 3. The polymer morphologies of optical diffusers C1–C9.
Fig. 4
Fig. 4. The optical properties of optical diffusers A1–A3; (A) total transmissions of optical diffusers A1–A3; (B) transmission hazes of optical diffusers A1–A3.
Fig. 5
Fig. 5. The optical properties of optical diffusers A4–A6; (A) total transmissions of optical diffusers A4–A6; (B) transmission hazes of optical diffusers A4–A6.
Fig. 6
Fig. 6. The optical properties of optical diffusers A7–A9; (A) total transmissions of optical diffusers A7–A9; (B) transmission hazes of optical diffusers A7–A9.
Fig. 7
Fig. 7. The transmissions and hazes of optical diffusers A1–A9 when the light wavelength is 560.0 nm.
Fig. 8
Fig. 8. (a) The relationship between the transmissions and hazes of optical diffusers A3, A6 and A9 and their diameter sizes; (b) the diffusing abilities of optical diffusers A3, A6 and A9.
Fig. 9
Fig. 9. The optical properties of optical diffusers C1–C3; (A) total transmissions of optical diffusers C1–C3; (B) transmission hazes of optical diffusers C1–C3.
Fig. 10
Fig. 10. The optical properties of optical diffusers C4–C6; (A) total transmissions of optical diffusers C4–C6; (B) transmission hazes of optical diffusers C4–C6.
Fig. 11
Fig. 11. The optical properties of optical diffusers C7–C9; (A) total transmissions of optical diffusers C7–C9; (B) transmission hazes of optical diffusers C7–C9.
Fig. 12
Fig. 12. The transmissions and hazes of optical diffusers C1–C9 when the light wavelength is 560.0 nm.
See this image and copyright information in PMC

References

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