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Photochromic resin used for safety glass and preparation method thereof

A safety glass and color-changing technology, which is applied in the field of resin for safety glass, can solve problems such as poor discoloration effect, achieve the effects of reducing washing times, reducing production costs, and high definition

Active Publication Date: 2012-08-08
QINGDAO HAOCHENG INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention aims at the above-mentioned problems such as the poor discoloration effect existing in the existing discoloration glass, and provides a kind of photochromic resin for safety glass with good discoloration effect, high definition, impact strength and stability and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0023] Specific embodiment one: a kind of photochromic resin for safety glass, its raw material composition is by weight: 3 parts of polyvinyl alcohol, 1.5 parts of n-butyraldehyde, 0.15 part of ethanol, 0.015 part of discoloration agent, 0.3 part of reagent grade hydrochloric acid, Pure water 30.

[0024] The steps of its specific preparation method are:

[0025] (1) dissolve

[0026] Add 30 parts of pure water into the reactor, start the agitator, slowly put 3 parts of polyvinyl alcohol into the reactor, start heating to 95-99°C, and keep it warm for 4-6 hours to ensure that the polyvinyl alcohol is completely dissolved;

[0027] (2) Reaction

[0028] Lower the temperature of the solution to 50°C, add 1.5 parts of butyraldehyde to the polyvinyl alcohol solution at a temperature of 50°C, and stir for 60 minutes; then lower the temperature to 25°C, and add 0.3 parts of reagent grade hydrochloric acid catalyst to the solution , while slowly adding 0.15 parts of ethanol and 0...

specific Embodiment 2

[0035] Specific embodiment two: a kind of photochromic resin for safety glass, its raw material composition is by weight: 4 parts of polyvinyl alcohol, 2 parts of n-butyraldehyde, 0.2 part of ethanol, 0.02 part of discoloration agent, 0.4 part of reagent grade hydrochloric acid, Pure water 40.

[0036] The steps of its specific preparation method are:

[0037] (1) dissolve

[0038] Add 40 parts of pure water to the reactor, start the agitator, slowly put 4 parts of polyvinyl alcohol into the reactor, start heating to 95-99°C, and keep it warm for 4-6 hours to ensure that the polyvinyl alcohol is completely dissolved;

[0039] (2) Reaction

[0040] Lower the solution temperature to 50°C, add 2 parts of butyraldehyde to the polyvinyl alcohol solution at a temperature of 50°C, and stir for 60 minutes; then lower the temperature to 25°C, and add 0.4 parts of reagent grade hydrochloric acid catalyst to the solution , while slowly adding 0.2 parts of ethanol and 0.02 parts of dis...

specific Embodiment 3

[0047] Specific embodiment three: a kind of photochromic resin for safety glass, its raw material composition is by weight: 5 parts of polyvinyl alcohol, 2.5 parts of n-butyraldehyde, 0.25 part of ethanol, 0.025 part of discoloration agent, 0.5 part of reagent grade hydrochloric acid, Pure water 50.

[0048] The steps of its specific preparation method are:

[0049] (1) dissolve

[0050] Add 50 parts of pure water into the reactor, start the agitator, slowly put 5 parts of polyvinyl alcohol into the reactor, start heating to 95-99°C, and keep it warm for 4-6 hours to ensure that the polyvinyl alcohol is completely dissolved;

[0051] (2) Reaction

[0052] Lower the temperature of the solution to 50°C, add 2.5 parts of butyraldehyde to the polyvinyl alcohol solution at a temperature of 50°C, and stir for 60 minutes; then lower the temperature to 25°C, and add 0.5 parts of reagent grade hydrochloric acid catalyst to the solution , while slowly adding 0.25 parts of ethanol and...

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PUM

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Abstract

The invention relates to a photochromic resin used for safety glass and a preparation method thereof. The resin is prepared from polyvinyl alcohol, n-butanal, little reagent-grade hydrochloric acid, color-changing agents and ethanol. The method comprises the processes of dissolving, reacting, washing, dehydrating and drying. In the reaction process, the ethanol and color-changing agents are added, thus realizing the photochromic effect, simultaneously improving the unique attributes of the resin and enabling the resin to have high definition, impact resistance and stability and have good photochromic property. The little reagent-grade hydrochloric acid is used as the catalyst, thus reducing the washing frequency and saving abundant water resources. Meanwhile, the reaction is carried out at 25 DEG C, thus greatly lowering the production cost.

Description

technical field [0001] The invention relates to a resin for safety glass, in particular to a color-changing resin for safety glass. Background technique [0002] More than 80% of the safety glass produced in the current safety glass market is transparent safety glass, and colored safety glass accounts for less than 20%. When encountering strong light, the glass will change color and cause differences in color. After the light is restored, the effect of glass recovery is poor, and it is difficult to achieve transparency, which affects the use effect. Therefore, the safety glass on the market wants to achieve the condition of discoloration, but there is no corresponding technology to solve the corresponding photochromic problem. Contents of the invention [0003] The object of the present invention is to provide a kind of photochromic resin for safety glass with good color changing effect, high clarity, high impact strength and stability and its preparation method for the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L29/14C08F8/28
Inventor 李金伟张培华李克元张美玲陈照燕
Owner QINGDAO HAOCHENG INDAL
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