Transparent hardening composition, TAC glasses film and preparation method of TAC glasses film

Abstract

Transparent hardening composition is prepared from components in parts by weight as follows: 5-20 parts of organic cellulose ester, 15-30 parts of monomers, 10-30 parts of a prepolymer, 2-7 parts of a first initiator, 2-7 parts of a second initiator, 0.1-1 part of a leveling agent and 30-65 parts of an organic solvent, wherein the organic cellulose ester structurally contains, in percentage by mass, 2%-55% of an acyl functional group and 1%-5% of a hydroxyl functional group. The organic cellulose ester in the composition remarkably improves the weather fastness, crimpiness, film coating property, flexibility, adhesion and wear resistance of a hardened coating of a transparent hardened TAC film, and the transparent hardening composition can be widely applied to the field of glasses lenses.

Description

technical field

[0001] The invention belongs to the field of thin films, and in particular relates to a transparent hardening composition, a TAC eyeglass film and a preparation method thereof. Background technique

[0002] The polarizer can effectively exclude and filter the scattered light in the light beam, so that the vision is clear and natural, the light is softer, and the eyes are effectively protected. The development of polarized glasses has gone through glass polarizers, resin lenses (CR-39), space lenses (PC), acrylic lenses (polymethyl methacrylate) and TAC polarized lenses. Among them, TAC polarized lenses are favored by consumers because of their higher transmittance, anti-scratch, and safer use effects.

[0003] The basic structure of TAC polarized lenses is composed of PVA polarizing layer and TAC protective layer structure. TAC film has better optical properties than other optical films, but its wear resistance is poor, so it is necessary to coat TAC film w...

Examples

Embodiment 1

[0048] 1. Preparation of cellulose organic ester reaction solution:

[0049] Cellulose acetate butyrate 5g

[0050] Monomer triethylene glycol diacrylate 15g

[0051] The first initiator 2g

[0052] Mix 5g of cellulose acetate butyrate [Eastman, CAB-550-5, acetyl 4%, butyryl 51%, hydroxyl 1%] and 15 g of triethylene glycol diacrylate monomer [Sartomer TEGDA , SR272, functionality 2] mixed, stirred on a heating mixer at 30°C for 1 hour at a high speed, so that the solid cellulose organic powder particles were evenly swollen in the monomer diluent, and 2g of the first initiator [BASF, Germany, 184] Add it into the mixed solution and continue to stir at a low speed for 0.5 hour to pre-crosslink the cellulose organic ester and the monomer to form 22 g of the cellulose organic ester reaction solution.

[0053] 2. Preparation of transparent hardening solution:

[0054]

[0055] Dissolve 10g of aliphatic urethane acrylate prepolymer EB205 [Ubicil, functionality 3] into 30g of ...

Embodiment 2

[0059] 1. Preparation of cellulose organic ester reaction solution:

[0060]

[0061] 5g cellulose acetate butyrate [Eastman, CAB-550-5, acetyl 4%, butyryl 51%, hydroxyl 1%], 5g cellulose acetate [Eastman CA-398-10, acetyl Base 40%, hydroxyl 3.5%] mixed with 15g of pentaerythritol triacrylate monomer [Shanghai Yante PETA, functionality 3], stirred at a high speed of 30°C for 1 hour on a heating mixer, so that the solid cellulose organic powdery particles were evenly swollen In the monomer diluent, add 4g of the first initiator [Beijing Yingli, 1173] into the mixed solution, and continue to stir at a low speed for 0.5 hours to pre-crosslink the cellulose organic ester and the monomer to form 29g of cellulose organic ester The reaction solution.

[0062] 2. Preparation of transparent hardening solution:

[0063]

[0064] Dissolve 15g of aliphatic urethane acrylate prepolymer 6145-100 [Changxing Chemical, functionality 6] into 65g of toluene solvent, add 0.3g of polysilox...

Embodiment 3

[0068] 1. Preparation of cellulose organic ester reaction solution:

[0069]

[0070] 5g cellulose acetate butyrate [Eastman, CAB-550-5, acetyl 4%, butyryl 51%, hydroxyl 1%], 5g cellulose acetate [Eastman CA-398-10, acetyl Base 40%, hydroxyl 3.5%], 5g cellulose acetate propionate [Eastman, CPA-482-0.5, acetyl 2.5%, propionyl 45%, hydroxyl 2.6%] and 20g hydroxyethyl methacrylate [ Shanghai Cytec HEMA, functionality 1] mixed, stirred on a heating mixer at 30°C for 1 hour, so that the solid cellulose organic powder particles were uniformly swelled in the monomer diluent, and 2g of the first initiator [Beijing Yingli , 1173] was added to the mixed solution, and continued to stir at a low speed for 0.5 hours to pre-crosslink the cellulose organic ester and the monomer to form a 37g cellulose organic ester reaction solution.

[0071] 2. Preparation of transparent hardening solution:

[0072]

[0073]

[0074] Dissolve 19g of aliphatic urethane acrylate prepolymer KJ9503 [...

technical field

[0001] The invention belongs to the field of thin films, and in particular relates to a transparent hardening composition, a TAC eyeglass film and a preparation method thereof. Background technique

[0002] The polarizer can effectively exclude and filter the scattered light in the light beam, so that the vision is clear and natural, the light is softer, and the eyes are effectively protected. The development of polarized glasses has gone through glass polarizers, resin lenses (CR-39), space lenses (PC), acrylic lenses (polymethyl methacrylate) and TAC polarized lenses. Among them, TAC polarized lenses are favored by consumers because of their higher transmittance, anti-scratch, and safer use effects.

[0003] The basic structure of TAC polarized lenses is composed of PVA polarizing layer and TAC protective layer structure. TAC film has better optical properties than other optical films, but its wear resistance is poor, so it is necessary to coat TAC film w...

Examples

Embodiment 1

[0048] 1. Preparation of cellulose organic ester reaction solution:

[0049] Cellulose acetate butyrate 5g

[0050] Monomer triethylene glycol diacrylate 15g

[0051] The first initiator 2g

[0052] Mix 5g of cellulose acetate butyrate [Eastman, CAB-550-5, acetyl 4%, butyryl 51%, hydroxyl 1%] and 15 g of triethylene glycol diacrylate monomer [Sartomer TEGDA , SR272, functionality 2] mixed, stirred on a heating mixer at 30°C for 1 hour at a high speed, so that the solid cellulose organic powder particles were evenly swollen in the monomer diluent, and 2g of the first initiator [BASF, Germany, 184] Add it into the mixed solution and continue to stir at a low speed for 0.5 hour to pre-crosslink the cellulose organic ester and the monomer to form 22 g of the cellulose organic ester reaction solution.

[0053] 2. Preparation of transparent hardening solution:

[0054]

[0055] Dissolve 10g of aliphatic urethane acrylate prepolymer EB205 [Ubicil, functionality 3] into 30g of ...

Embodiment 2

[0059] 1. Preparation of cellulose organic ester reaction solution:

[0060]

[0061] 5g cellulose acetate butyrate [Eastman, CAB-550-5, acetyl 4%, butyryl 51%, hydroxyl 1%], 5g cellulose acetate [Eastman CA-398-10, acetyl Base 40%, hydroxyl 3.5%] mixed with 15g of pentaerythritol triacrylate monomer [Shanghai Yante PETA, functionality 3], stirred at a high speed of 30°C for 1 hour on a heating mixer, so that the solid cellulose organic powdery particles were evenly swollen In the monomer diluent, add 4g of the first initiator [Beijing Yingli, 1173] into the mixed solution, and continue to stir at a low speed for 0.5 hours to pre-crosslink the cellulose organic ester and the monomer to form 29g of cellulose organic ester The reaction solution.

[0062] 2. Preparation of transparent hardening solution:

[0063]

[0064] Dissolve 15g of aliphatic urethane acrylate prepolymer 6145-100 [Changxing Chemical, functionality 6] into 65g of toluene solvent, add 0.3g of polysilox...

Embodiment 3

[0068] 1. Preparation of cellulose organic ester reaction solution:

[0069]

[0070] 5g cellulose acetate butyrate [Eastman, CAB-550-5, acetyl 4%, butyryl 51%, hydroxyl 1%], 5g cellulose acetate [Eastman CA-398-10, acetyl Base 40%, hydroxyl 3.5%], 5g cellulose acetate propionate [Eastman, CPA-482-0.5, acetyl 2.5%, propionyl 45%, hydroxyl 2.6%] and 20g hydroxyethyl methacrylate [ Shanghai Cytec HEMA, functionality 1] mixed, stirred on a heating mixer at 30°C for 1 hour, so that the solid cellulose organic powder particles were uniformly swelled in the monomer diluent, and 2g of the first initiator [Beijing Yingli , 1173] was added to the mixed solution, and continued to stir at a low speed for 0.5 hours to pre-crosslink the cellulose organic ester and the monomer to form a 37g cellulose organic ester reaction solution.

[0071] 2. Preparation of transparent hardening solution:

[0072]

[0073]

[0074] Dissolve 19g of aliphatic urethane acrylate prepolymer KJ9503 [...

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