CN106673455B - Composition for glass substrate of liquid crystal display surface treatment - Google Patents
Composition for glass substrate of liquid crystal display surface treatment Download PDFInfo
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- CN106673455B CN106673455B CN201611268678.3A CN201611268678A CN106673455B CN 106673455 B CN106673455 B CN 106673455B CN 201611268678 A CN201611268678 A CN 201611268678A CN 106673455 B CN106673455 B CN 106673455B
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- glass substrate
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- liquid crystal
- crystal display
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Liquid Crystal (AREA)
Abstract
For the composition of glass substrate of liquid crystal display surface treatment, the composition is composed of the following components：The hydrochloric acid (HCl) of mass percentage content 5-8%, the hydrofluoric acid (HF) of mass percentage content 2%~5%, the chitosan of mass percentage content 1~2%, dimethyl silicone polymer, the hydroxypropyl-β-cyclodextrin of mass percent 0.5%~1% and the water of surplus of mass percentage content 0.5~1%.
Description
Technical field
The present invention relates to etch pretreated composition for glass substrate of liquid crystal display.
Background technology
When carrying out thinning processing to glass substrate of liquid crystal display, when the hydrofluoric acid etch of use carries out thinning side,
There is pit due to being lost because locally crossing in glass baseplate surface, and needs carrying out prolonged polishing treatment.And when thinning is handled
Glass substrate has been completed encapsulation, once generating serious cross loses (often because of the local tiny flaw of glass), can cause whole
It is a to scrap, in order to reduce the pit that thinning processing occurs, the yields after thinning treatment process is improved, is needed before thinning is handled
The glass substrate of liquid crystal display is pre-processed, a small amount of hydrofluoric acid, salt is added in existing pretreating process based on the concentrated sulfuric acid
Sour to be configured to pretreatment fluid, due to adding a large amount of concentrated sulfuric acid, the waste liquid generated after pretreatment process is difficult to be handled.
Therefore a kind of new glass substrate of liquid crystal display thinning pretreatment product is provided, is reduced on the basis of improving treatment effect
Disposal of pollutants becomes urgent problem to be solved in the prior art.
Invention content
To solve aforementioned technical problem, the present invention provides the compositions being surface-treated for glass substrate of liquid crystal display
And its treatment process, by optimization formulation and treatment process, successfully realize avoid concentrated sulfuric acid etc. cause seriously pollute and
It is difficult to the use of raw material handled.
The present invention provides the compositions being surface-treated for glass substrate of liquid crystal display, it is characterised in that the combination
Object is composed of the following components：
The hydrochloric acid (HCl) of mass percentage content 5-8%, the hydrofluoric acid (HF) of mass percentage content 2%~5%, matter
Measure the chitosan of degree 1~2%, the dimethyl silicone polymer of mass percentage content 0.5~1%, mass percent
0.5%~1% hydroxypropyl-β-cyclodextrin and the water of surplus.
The composition for glass substrate of liquid crystal display surface treatment, it is characterised in that match in the following manner
System,
1) recipe quantity hydrochloric acid, hydrofluoric acid are mixed, and suitable quantity of water dilution are added,
2) recipe quantity chitosan is added in the mixed liquor that step 1) obtains and is dissolved；
3) hydroxypropyl-β-cyclodextrin of recipe quantity is dissolved in suitable quantity of water to being completely dissolved, adds the poly- diformazan of recipe quantity
Radical siloxane；
3) mixed liquor that step 2) obtains is respectively added slowly in the mixed liquor of step 3), is stirred after supplying the water of surplus
Extremely it is uniformly mixed.
The glass substrate of liquid crystal display is preferably TFT glass substrates
Under study for action it was found that composition provided by the invention, only on the hydrochloric acid and hydrofluoric acid base of low concentration
Rational formula is carried out, after being pre-processed to glass substrate of liquid crystal display using the composition, can be significantly reduced subsequent
The pit on hydrofluoric acid etch thinning technique metacoxal plate surface, to while ensure that pretreating effect, avoid existing skill
The problem of being difficult to handle using concentrated sulfuric acid pretreating agent as main component insecurity when in use and waste liquid in art.This hair
The composition of bright offer has good pretreating effect to the faces CF of glass substrate and the faces TFT.And by prescription screening we
It was found that preferable pretreating effect, especially hydroxypropyl-β-cyclodextrin could be generated using preferred ingredient and recipe quantity, shell gathers
Sugar, dimethyl silicone polymer and its proportioning, above-mentioned three kinds of groups are divided into the key component that can realize good pretreating effect, lack
Any of which or changes its proportioning and can all significantly affect pretreating effect.
Specific implementation mode
Provided by the present invention for the composition being surface-treated for glass substrate of liquid crystal display, match in the following manner
System,
1) recipe quantity hydrochloric acid, hydrofluoric acid are mixed, and suitable quantity of water dilution are added,
2) hydroxypropyl-β-cyclodextrin of recipe quantity is dissolved in suitable quantity of water to being completely dissolved, adds the poly- diformazan of recipe quantity
Radical siloxane；
3) recipe quantity ethanedioic acid is prepared into the solution as 1%, recipe quantity chitosan is added and dissolved；
3) mixed liquor obtained by step 1), 2) is respectively added slowly in the mixed liquor of step 3), after the water for supplying surplus
It stirs to uniformly mixed.
Examples 1 to 4 formula see the table below (mass percent wt%)
The chitosan used in the present invention is meets the product of GB 29941-2013.
It is as follows that the pretreated method of thinning is carried out to the composition that Examples 1 to 4 obtains
The glass panel for TFT display screens for the same batch that raw material are Corning Incorporated's production is taken, thickness is
1.000mm, size are 730mm × 920mm.It is used etching and polissoir be respectively Dongguan letter village etching machine and Hunan forever
Create polishing machine.UV glue is first permeated in CF surface glasses substrate and TFT surface glass substrate surroundings gap, then complete with UV illumination curings
At the encapsulation of glass substrate, the glass substrate that encapsulation is completed is for subsequent pretreatment and thinning process
Preprocess method is
1) it is formulated for the composition 1000L (hereinafter referred to as pretreating agent) of glass substrate of liquid crystal display surface treatment
2) pretreating agent is squeezed into etching machine acid tank and controls pretreating agent temperature at 50 DEG C ± 2 DEG C, using as experiment
5 glass substrates (number is I~V) for completing encapsulation of group sample are immersed in pretreating agent, removal glass surface bilayer 60
Micron；Bubbling stirring is carried out to pretreating agent in pretreatment.
3)：Glass surface is cleaned with clear water, is entered back under conditions of surface wettability in hydrofluoric acid etch liquid, it is a concentration of
9mol/L, temperature are controlled in 30 DEG C of conditions, are thinned to 0.5mm thickness.
It is directly entered after another glass substrate (number i~v) clear water for taking 5 to complete encapsulation cleaning dense in hydrofluoric acid etch liquid
Degree is 9mol/L, and temperature is controlled in 30 DEG C of conditions, is thinned to 0.5mm thickness, and as a control group
On same forever wound polishing machine 1300-3#, pressure 60g/cm2, lower disk rotating speed 50, upper disk rotating speed 40, grinding pad
For global LP-66 models, polishing powder is happy 101 model of scholar of moral, and absorption layer is FUJIBO BPE211 models, and experimental group often grinds 2
Minute examines one-time surface effect, and control group, which often grinds to examine for 5 minutes, once to be shown to examine no pit after effect, record are ground
Accumulative milling time it is as shown in table 1
The experimental results showed that carrying out pretreated glass substrate using pretreating agent provided by the invention is carrying out thinning
The pit on panel can be substantially reduced after process.
Claims (2)
1. the composition for glass substrate of liquid crystal display surface treatment, it is characterised in that the composition is by following components group
At：
The hydrochloric acid (HCl) of mass percentage content 5-8%, the hydrofluoric acid (HF) of mass percentage content 2%~5%, quality hundred
Divide the chitosan than content 1~2%, the dimethyl silicone polymer of mass percentage content 0.5~1%, mass percent 0.5%
~1% hydroxypropyl-β-cyclodextrin and the water of surplus.
2. the composition for glass substrate of liquid crystal display surface treatment as described in claim 1, it is characterised in that with such as
Lower method is prepared,
1) recipe quantity hydrochloric acid, hydrofluoric acid are mixed, and suitable quantity of water dilution are added,
2) recipe quantity chitosan is added in the mixed liquor that step 1) obtains and is dissolved；
3) hydroxypropyl-β-cyclodextrin of recipe quantity is dissolved in suitable quantity of water to being completely dissolved, adds recipe quantity poly dimethyl silicon
Oxygen alkane；
3) mixed liquor that step 2) obtains is respectively added slowly in the mixed liquor of step 3), is stirred to mixed after supplying the water of surplus
It closes uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268678.3A CN106673455B (en) | 2016-12-31 | 2016-12-31 | Composition for glass substrate of liquid crystal display surface treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611268678.3A CN106673455B (en) | 2016-12-31 | 2016-12-31 | Composition for glass substrate of liquid crystal display surface treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106673455A CN106673455A (en) | 2017-05-17 |
| CN106673455B true CN106673455B (en) | 2018-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611268678.3A Active CN106673455B (en) | 2016-12-31 | 2016-12-31 | Composition for glass substrate of liquid crystal display surface treatment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108975721A (en) * | 2018-10-31 | 2018-12-11 | 邓惠玉 | A kind of etch combination for glass substrate of liquid crystal display thinning processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000281368A (en) * | 1999-03-31 | 2000-10-10 | Shin Meiwa Ind Co Ltd | Production of sheet glass |
| WO2009066624A1 (en) * | 2007-11-19 | 2009-05-28 | Asahi Glass Co., Ltd. | Method for etching glass substrate |
| CN102432185B (en) * | 2011-09-30 | 2014-09-10 | 郑州恒昊玻璃技术有限公司 | Etching liquid and etching process for anti-dazzle glass product |
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| CN106673455A (en) | 2017-05-17 |
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Effective date of registration: 20180910 Address after: 435111 office building 201, B building, 189 Jinshan Road, Huangshi economic and Technological Development Zone, Hubei Applicant after: Herd nano technology (Huangshi) Co., Ltd. Address before: 528051 No. 4, Lane 4, Nan Bian street, Chancheng, Zhangcha, Foshan, Guangdong. Applicant before: Pang Qiqi |
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