Addition type composite particle for polyester film, preparation method of addition type composite particle and optical polyester film added with composite particle

A technology of polyester film and composite particles, which is applied in the field of polyester film, can solve the problems affecting the light transmittance of polyester film, etc., and achieve the effects of good sliding and scratch resistance, low haze and high light transmittance

Inactive Publication Date: 2012-08-08
WEIFANG FUWEI PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The first technical problem to be solved by the present invention is: aiming at the problem that the addition of additive particles in the polyester film in the prior art will affect the light transmittance of the polyester film, to provide a kind of polyester film that has a similar refractive index and does not Additive Composite Particles for Light Scattering in Polyester Films
[0009] The second technical problem to be solved by the present invention is: aiming at the problem that the addition of additive particles in the polyester film in the prior art will affect the light transmittance of the polyester film, to provide a kind of polyester film that has a similar refractive index and does not Process for the preparation of additive type composite particles for use in polyester films causing light scattering

Method used

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  • Addition type composite particle for polyester film, preparation method of addition type composite particle and optical polyester film added with composite particle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) In parts by weight, under agitation, 140 parts of methanol, 260 parts of isopropanol and ammonia water (100 parts of ammonia solution) containing 25 parts of ammonia are mixed to prepare a reaction solution, and the temperature of the reaction solution is maintained at 40° C. Keep stirring.

[0048] (2) Add 200 parts of methanol and 0.1 parts by weight of Hcl-containing aqueous hydrochloric acid (35% hydrochloric acid diluted to 1 / 1000 with water) to 540 parts of silicon tetramethoxide under stirring, and stir for 10 minutes.

[0049] (3) After diluting 350 parts of titanium tetraisopropoxide with 730 parts of isopropanol, add the diluted solution to the solution of (2) and mix to obtain a transparent homogeneous solution (tetraalkoxy silicon and tetraalkoxy titanium of cocondensates).

[0050] (4) Within 2 hours, the homogeneous solution and the ammoniacal liquor (480 parts in aqueous ammonia solution) containing 25 parts of ammonia were added dropwise in the reac...

Embodiment 2

[0052] (1) In parts by weight, under stirring, 120 parts of methanol, 250 parts of isopropanol and ammonia water (60 parts of ammonia solution) containing 20 parts of ammonia are mixed to prepare a reaction solution, and the temperature of the reaction solution is maintained at 35° C. Keep stirring.

[0053] (2) Add 200 parts of methanol and an aqueous hydrochloric acid solution (35% hydrochloric acid diluted to 1 / 1000 with water) containing 0.08 parts by weight of Hcl to 500 parts of silicon tetramethoxide under stirring, and stir for 8 minutes.

[0054] (3) After diluting 300 parts of titanium tetraisopropoxide with 600 parts of isopropanol, add the diluted solution to the solution of (2) and mix to obtain a transparent homogeneous solution (tetraalkoxy silicon and tetraalkoxy titanium of cocondensates).

[0055] (4) Within 1.5 hours, the homogeneous solution and the ammoniacal liquor (300 parts of ammonia solution) containing 20 parts of ammonia were added dropwise to the ...

Embodiment 3

[0057] (1) In parts by weight, under agitation, 200 parts of methanol, 330 parts of isopropanol and ammonia water containing 30 parts of ammonia (180 parts of ammonia solution) are mixed to prepare a reaction solution, and the temperature of the reaction solution is maintained at 50° C. Keep stirring.

[0058] (2) Add 280 parts of methanol and 0.15 parts by weight of Hcl-containing aqueous hydrochloric acid (35% hydrochloric acid diluted to 1 / 1000 with water) to 600 parts of silicon tetramethoxide under stirring, and stir for 20 minutes.

[0059] (3) After diluting 420 parts of titanium tetraisopropoxide with 730 parts of isopropanol, add the diluted solution to the solution of (2) and mix to obtain a transparent homogeneous solution (tetraalkoxy silicon and tetraalkoxy titanium of cocondensates).

[0060] (4) Within 4 hours, the homogeneous solution and the ammoniacal liquor (550 parts in aqueous ammonia solution) containing 30 parts of ammonia were added dropwise in the rea...

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Abstract

The invention discloses an addition type composite particle for a polyester film, a preparation method and an optical polyester film added with the composite particle. The composite particle is a spherical microparticle formed by compounding at least two kinds of organic or inorganic microparticles; the difference between the refractive index of the compound particle and the refractive index of polyester is less than or equal to 0.02; the average particle size of the compound particle is 10-2000nm; the polyester film contains at least one polyester film layer; at least one kind of composite particle is added in a surface layer of the polyester film; and counted by 100 parts by weight, the polyester film comprises 1-20 parts by weight of composite particle. According to the invention, the composite particle of which the refractive index is approximate to that of the polyester is added during the preparation of the polyester film; on the premise of maintaining optical performances of the polyester film, mechanical performances of the polyester film are improved and the surface performance and processing performance of the polyester film are improved. The polyester film can be applied to the technical field having harsh requirement on the light transmittance in the optical field.

Description

technical field [0001] The invention relates to the technical field of polyester films, in particular to an optical base film suitable for use as anti-reflection films, touch screens, diffusion plates and other substrates in display fields such as LCDs, CRTs, PDPs, and ELs. Background technique [0002] Compared with other plastic films, polyester film has good dimensional stability, chemical resistance and transparency, so it is widely used in the optical field, such as LCD, CRT, PDP, EL and other display devices. Among them, when the polyester film is used for the touch panel, it is subjected to off-line coating because it is used for the hard coating of the inorganic EL and liquid crystal display, etc.; when it is used for the substrate on the diffusion sheet, it is equivalent to the LCD monitor, prism lens sheet and backlight units such as protective films; when used for anti-reflective substrates that suppress light reflection, mainly for glare caused by external light ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08L67/02C08L33/04C08L25/04C08L83/04C08L27/12C08L61/06C08L77/00C08K3/26C08K3/22C08K3/34C08K3/30C08K3/04C09D167/00C09D133/00C08J7/04B32B27/20B32B27/36G02B1/04
Inventor 曾丽平郭申滕岩李中国孟令明孟凡
Owner WEIFANG FUWEI PLASTIC
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