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PVA plasticizer composition and PVA optical film

A technology of optical film and plasticizer, which is applied in the field of new polymer materials, can solve the problems of uneven mixing of PVA and plasticizer, easy precipitation of PVA and plasticizer, easy precipitation of plasticizer, etc., and achieve the reaction step Ease of handling, reduced migration, and improved water resistance

Pending Publication Date: 2021-01-29
熊烈祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of PVA plasticizer composition and PVA optical film for the problem that PVA and plasticizer are not mixed uniformly and the plasticizer is easy to separate out in the follow-up processing in the prior art. Phenylboronic acid, 2-nitro-4 hydroxyl-5 methoxy benzyl alcohol and 1-chlorobutanetriol are used as raw materials, and a kind of PVA optical film plasticizer composition and PVA optical film are prepared through coupling reaction, solve It overcomes the defects in the prior art that PVA and plasticizer are easy to separate out in subsequent processing and the mixing of PVA and plasticizer is uneven, and it is easy to industrialized production

Method used

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  • PVA plasticizer composition and PVA optical film
  • PVA plasticizer composition and PVA optical film
  • PVA plasticizer composition and PVA optical film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method for a plasticizer composition for PVA optical film, comprising the following steps:

[0026] (1) After mixing the aqueous solution of 10wt% 3-aminomethylbenzeneboronic acid and the aqueous solution of 10% PVA in a mass ratio of 3:1, add 0.1M NaOH solution, adjust the pH to 8.5, concentrate to obtain a suspension, filter, Dry in vacuo to obtain product I (IR: 3327cm -1 :-NH 2 Existence; 1602cm -1 、1453cm -1 : benzene ring exists; 1341cm -1 : boric acid group disappears; 3488cm -1 : -OH weakly exists);

[0027] (2) Under nitrogen protection, dissolve 1mol 2-nitro-4-hydroxy-5methoxybenzyl alcohol, 1.2mol 1-chlorobutanetriol, and 1.2mol potassium iodide in 50mol DMF, heat to 80°C, and stir vigorously for 20h , cooling, standing, vacuum concentration, purification, vacuum drying to obtain product II (IR: 1602cm -1 、1453cm -1 : benzene ring exists; 734cm -1 : C-Cl disappears; 3447cm -1 : -OH exists; 1342cm -1 、1510cm -1 :-N=O exists).

[0028...

Embodiment 2

[0031] A preparation method for a plasticizer composition for PVA optical film, comprising the following steps:

[0032] (1) After mixing the aqueous solution of 10wt% 4-aminomethylbenzeneboronic acid and the aqueous solution of 10% PVA according to the mass ratio of 2:1, add 0.1M NaOH solution, adjust the pH to 8, concentrate to obtain the suspension, filter, Dry in vacuo to obtain product I (IR: 3329cm -1 :-NH 2 Existence; 1604m -1 、1453cm -1 : benzene ring exists; 1340cm -1 : boric acid group disappears; 3488cm -1 : -OH weakly exists);

[0033] (2) Under nitrogen protection, dissolve 1mol 2-nitro-4-hydroxy-5methoxybenzyl alcohol, 1.1mol 1-chlorobutanetriol, and 1.1mol potassium iodide in 50mol DMF, heat to 100°C, and stir vigorously for 15h , cooling, standing, vacuum concentration, purification, vacuum drying to obtain product II (IR: 1604cm -1 、1453cm -1 : benzene ring exists; 735cm -1 : C-Cl disappears; 3447cm -1 : -OH exists; 1344cm -1 、1515cm -1 :-N=O exist...

Embodiment 3

[0037] A preparation method for a plasticizer composition for PVA optical film, comprising the following steps:

[0038] (1) After mixing the aqueous solution of 10wt% 3-aminomethylbenzeneboronic acid and the aqueous solution of 10% PVA according to the mass ratio of 1:1, add 0.1M NaOH solution, adjust the pH to 7.5, concentrate to obtain the suspension, filter, Dry in vacuo to obtain product I (IR: 3332cm -1 :-NH 2 Existence; 1604m -1 、1453cm -1 : benzene ring exists; 1340cm -1 : boric acid group disappears; 3494cm -1 : -OH weakly exists);

[0039](2) Under nitrogen protection, dissolve 1mol 2-nitro-4-hydroxy-5methoxybenzyl alcohol, 1mol 1-chlorobutanetriol, and 1mol potassium iodide in 50mol DMF, heat to 110°C, stir vigorously for 10h, and cool , stand still, concentrate in vacuo, purify, and dry in vacuo to obtain product II (IR: 1607cm -1 、1456cm -1 : benzene ring exists; 735cm -1 : C-Cl disappears; 3447cm -1 : -OH exists; 1343cm -1 、1515cm -1 :-N=O exists).

...

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Abstract

The invention belongs to the field of high polymer materials, and particularly relates to a PVA plasticizer composition and a PVA optical film, which are prepared by taking PVA, aminomethylphenylboronic acid, 2-nitro-4-hydroxy-5 methoxybenzyl alcohol and 1-chlorobutantriol as raw materials through a coupling reaction. The novel plasticizer composition not only effectively solves the problems of uneven mixing of PVA and a plasticizer and easy separation of the plasticizer due to mobility in subsequent processing, but also is simple to operate and easy for industrial production. It can be foreseen that the material has a great market prospect.

Description

technical field [0001] The invention belongs to the field of novel polymer materials, and in particular relates to a PVA plasticizer composition and a PVA optical film. Background technique [0002] The base material of the polarizer is a layer of PVA film, which is a linear polymer with many strongly polar hydroxyl groups distributed on its main chain. It has good water solubility, low glass transition temperature, and easy film formation. High transparency and good extensibility. Polarizers are mostly used in liquid crystal display technology, accounting for 99% of the total amount of polarizers used. [0003] The research on polarizers mainly focuses on the improvement of polyvinyl alcohol film technology and polarizing film process. At present, the companies in the world mainly from Japan and South Korea are involved in the development of polarizing film, but they have their own advantages and emphases in technological innovation. The technologies of Kuraray and Synth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08K5/55C08J5/18
CPCC08J5/18C08J2329/04
Inventor 熊烈祥
Owner 熊烈祥
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