CN109985876A - For stripping the degumming agent of mobile phone glass rear cover gum, the Degumming method and mobile phone glass rear cover of mobile phone glass rear cover gum - Google Patents
For stripping the degumming agent of mobile phone glass rear cover gum, the Degumming method and mobile phone glass rear cover of mobile phone glass rear cover gum Download PDFInfo
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- CN109985876A CN109985876A CN201810006283.9A CN201810006283A CN109985876A CN 109985876 A CN109985876 A CN 109985876A CN 201810006283 A CN201810006283 A CN 201810006283A CN 109985876 A CN109985876 A CN 109985876A
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- China
- Prior art keywords
- degumming
- mobile phone
- rear cover
- gum
- phone glass
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B11/00—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
- B08B11/04—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/261—Alcohols; Phenols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/263—Ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/36—Organic compounds containing phosphorus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
Abstract
The Degumming method and mobile phone glass rear cover of the degumming agent, mobile phone glass rear cover gum that the invention discloses a kind of for stripping mobile phone glass rear cover gum, are related to the degumming technical field of glass gum.Degumming agent of the present invention includes following component by mass percentage: C1-C4 low mass molecule alcohol 65~80%, dipropylene glycol monomethyl ether 10~20%, phosphate flame retardant 3~5% and C2-C4 low-carbon dihydric alcohol 7~10%；Degumming method is to be impregnated using above-mentioned degumming agent to the mobile phone glass rear cover for posting the gum.The present invention, which alleviates traditional degumming agent, does not have specific aim, there is no degumming effect or effect unobvious the gum, be easy to cause rear cover glass to turn blue, thoroughly and scratch etc. bad problem, degumming agent of the invention can be such that colloid integrally completely falls off, not removing residual glue, and do not damage glass matrix, not will cause rear cover glass turn blue, it is opaque and/or scratch etc. bad problem.
Description
Technical field
The present invention relates to the degumming technical fields of glass gum, in particular to one kind for after stripping mobile phone glass
The Degumming method and mobile phone glass rear cover of the degumming agent of lid gum, mobile phone glass rear cover gum.
Background technique
Many producers all start to produce the cell phone rear cover product of glass material at present, and the processing technology of cell phone rear cover is usually wrapped
It includes: Bai Bo-cleaning-spraying ink-cleaning-inspection-patch gum-inspection, wherein the purpose of patch gum is by mobile phone glass rear cover
It is fitted together with other components of mobile phone.During manually patch gum, since artificial operation gimmick is improper, it will cause
Rubberizing deviation, product locally touch the problem of scuffing, therefore these products need production of doing over again again, before production of doing over again again,
Gum, which must first be removed, can just be normally carried out.
General gum is high polymer, some acid-fast alkali-proof organic solvent-resistants, existing degumming agent includes acid degumming agent,
Main component is the concentrated sulfuric acid；Alkaline degumming agent, main component are hydroxide aqueous solution and organic matter, are taken off using these of routine
Often degumming effect is bad for jelly, cannot effectively be removed to it, not have effect to certain gums, this just needs to develop more
Suitable degumming agent, to effectively remove gum.
For example 3M company H5530B type gum is a kind of black assembling gum, main component is acrylic compounds adhesive, is made
It cannot effectively be removed with traditional degumming agent, and the pH value of these traditional degumming agents is larger, not environmentally, be held
Easily glass back cover is damaged, cause rear cover glass to turn blue, not thoroughly (opaque) and scuffing etc. bad problem, be unable to satisfy life
Production demand.
In view of this, the present invention is specifically proposed.
Summary of the invention
One of the objects of the present invention is to provide a kind of degumming agents, can effectively strip the back for being affixed on mobile phone glass rear cover
Glue, gum strips completely after immersion, and degumming agent is in neutrality, and will not damage to glass, and rear cover glass is caused to turn blue, not
Thoroughly, the bad problem such as scuffing, furthermore several ingredient stabilities of the degumming agent are good, boiling point is high, nonflammable, and toxicity is low, smell is small, at
This low, Yi Shuixi.
The second object of the present invention is to provide a kind of Degumming method of mobile phone glass rear cover gum, and this method uses above-mentioned
Degumming agent impregnates the mobile phone glass rear cover for posting gum, has advantage same as above-mentioned degumming agent, gum after immersion
It falls off, can be stripped completely completely from glass, cap surface is not damaged after mobile phone glass, and yield is high.In addition, this method technique
Stablize, need to only impregnate can be realized degumming, and mass is facilitated to carry out degumming, and product yield is stablized.
The third object of the present invention is to provide a kind of above-mentioned degumming agent and carries out degumming process to mobile phone glass back cover or adopt
The mobile phone glass rear cover obtained after degumming process is carried out to mobile phone glass back cover with above-mentioned Degumming method, is had and above-mentioned degumming agent
Advantage same with Degumming method.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, the degumming agent includes as follows by mass percentage
Component: C1-C4 low mass molecule alcohol 65~80%, dipropylene glycol monomethyl ether 10~20%, phosphate flame retardant 3~5% are low with C2-C4
Carbon dihydric alcohol 7~10%.
Preferably, on the basis of technical solution provided by the invention, the degumming agent includes such as by mass percentage
Lower component: C1-C4 low mass molecule alcohol 65~75%, dipropylene glycol monomethyl ether 15~20%, phosphate flame retardant 3~5% and C2-C4
Low-carbon dihydric alcohol 7~10%.
Preferably, on the basis of technical solution provided by the invention, the degumming agent includes such as by mass percentage
Lower component: C1-C4 low mass molecule alcohol 70~75%, dipropylene glycol monomethyl ether 15~18%, phosphate flame retardant 3~4% and C2-C4
Low-carbon dihydric alcohol 7~8%.
Preferably, on the basis of technical solution provided by the invention, the C1-C4 low mass molecule alcohol be selected from methanol, ethyl alcohol,
One or more of propyl alcohol or butanol, preferred alcohol；And/or
The phosphate flame retardant is selected from tricresyl phosphate, triphenyl phosphate, phosphoric acid tri-isopropyl benzene ester, tricresyl phosphate fourth
One or more of ester, trioctyl phosphate or cresyl diphenyl phosphate, preferably triphenyl phosphate；And/or
The C2-C4 low-carbon dihydric alcohol is selected from one or more of ethylene glycol, propylene glycol or butanediol, preferably second two
Alcohol.
Preferably, on the basis of technical solution provided by the invention, the degumming agent includes such as by mass percentage
Lower component: ethyl alcohol 65~80%, dipropylene glycol monomethyl ether 10~20%, triphenyl phosphate 3~5% and ethylene glycol 7~10%.
Preferably, the degumming agent includes following component by mass percentage: ethyl alcohol 65~75%, dipropylene glycol list first
Ether 15~20%, triphenyl phosphate 3~5% and ethylene glycol 7~10%.
It is further preferred that the degumming agent includes following component by mass percentage: ethyl alcohol 70~75%, dipropyl
Glycol monomethyl ether 15~18%, triphenyl phosphate 3~4% and ethylene glycol 7~8%.
A kind of Degumming method of mobile phone glass rear cover gum, using above-mentioned for stripping the degumming of mobile phone glass rear cover gum
The mobile phone glass rear cover for posting the gum is impregnated in agent.
Further, on the basis of technical solution provided by the invention, soaking temperature be 80~90 DEG C, preferably 85~90
DEG C, further preferred 86~88 DEG C；And/or
Soaking time is 20~30min, preferably 20~25min, further preferred 22~25min；
Preferably, ultrasound is carried out when immersion.
Further, it on the basis of technical solution provided by the invention, is cleaned after being impregnated with degumming agent；
Preferably, cleaning uses immersion way；
Preferably, ultrasound is carried out when immersion；
Preferably, deinking is carried out to mobile phone glass back cover after cleaning, obtains white glass.
Preferably, a kind of typical mobile phone glass rear cover degumming rework preocess, comprising the following steps:
(a) the mobile phone glass rear cover to degumming is put into 80~90 DEG C of degumming agent, impregnates 20~25min；
(b) soaking and washing is carried out to the mobile phone glass rear cover after degumming with water；
(c) deinking carried out to the mobile phone glass rear cover after cleaning, washed and dried, obtain white glass.
It is a kind of that degumming is carried out to mobile phone glass back cover using the above-mentioned degumming agent for stripping mobile phone glass rear cover gum
Processing carries out the hand obtained after degumming process to mobile phone glass back cover using the Degumming method of above-mentioned mobile phone glass rear cover gum
Machine glass back cover.
Compared with the prior art, the invention has the following beneficial effects:
(1) degumming agent of the invention is using C1-C4 low mass molecule alcohol as main bleeding agent, using dipropylene glycol monomethyl ether as auxiliary
Bleeding agent enhances the osmotic effect of degumming agent, promotes falling off for colloid, and the mutual cooperation of the two can make colloid whole completely de-
It falls, not removing residual glue, and does not damage glass matrix, while phosphate flame retardant and C2-C4 low-carbon dihydric alcohol is added, formation has been stablized
Whole de-sizing system is hindered by 65~80%C1-C4 low mass molecule alcohol, 10~20% dipropylene glycol monomethyl ethers, 3~5% phosphates
Degumming agent made of mutual cooperation between combustion agent and 7~10%C2-C4 low-carbon dihydric alcohol effectively can make colloid fall off, no
Removing residual glue, degumming effect is good, not will cause rear cover glass turn blue, it is opaque and/or scratch etc. bad problem.
(2) degumming agent acidity value of the invention is moderate, is a kind of close to neutral degumming agent, will not damage in scouring processes
Hurt glass matrix itself, will not be corroded, alleviates traditional highly acid or strong basicity degumming agent easily corrodes glass, cause glass
The problem of scratching, turning blue, while solving that traditional degumming agent is bad to certain gum removal effects or even what can not be removed asks
Topic.
(3) several ingredient stabilities in degumming agent of the present invention are good, and boiling point is high, nonflammable, and toxicity is low, smell is small, safety
It is environmentally friendly and at low cost, it is the degumming agent that a kind of neutrality of high boiling environmental protection is easily washed.
(4) Degumming method of mobile phone glass rear cover gum of the invention is using above-mentioned degumming agent to the mobile phone glass for posting gum
Glass rear cover is impregnated, and has advantage same as above-mentioned degumming agent, and gum falls off from glass after immersion, can be moved back completely
Except clean, cap surface is not damaged after mobile phone glass, and yield is high.In addition, this method process stabilizing, need to only impregnate can be realized it is de-
Glue, facilitates mass to carry out degumming, and product yield is stablized.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to the first aspect of the invention, it provides a kind of for stripping the degumming agent of mobile phone glass rear cover gum, takes off
Jelly includes following component by mass percentage: C1-C4 low mass molecule alcohol 65~80%, dipropylene glycol monomethyl ether 10~20%,
Phosphate flame retardant 3~5% and C2-C4 low-carbon dihydric alcohol 7~10%.
Typical but non-limiting mobile phone glass rear cover gum is 3M H5530B glue.
3M H5530B gum is a kind of black assembling gum of 3M company production, is covered after can be used for mobile phone glass, chemistry
Ingredient mainly includes the sponge substrate that mass percent is 50-99% and the acrylic compounds adhesive of 1-50%.
C1-C4 low mass molecule alcohol
C1-C4 low mass molecule alcohol refers to the low-carbon alcohols of C1-C4, and C1-C4 low mass molecule alcohol can be in methanol, ethyl alcohol, propyl alcohol or butanol
One or more.
The typical but non-limiting mass percentage of C1-C4 low mass molecule alcohol is, for example, 65%, 66%, 67%, 68%,
69%, 70%, 71%, 72%, 73%, 74%, 75%, 76%, 77%, 78%, 79% or 80%.
Host agent by using low mass molecule alcohol as degumming agent, can effective permeable colloids, so that gum is fallen off, and will not damage
Evil glass matrix itself.
C1-C4 low mass molecule alcohol content is too low, and osmosis is weak, cannot effectively remove gum, C1-C4 low mass molecule alcohol content
Excessively high, osmosis is strong, is easy to damage glass matrix.
Dipropylene glycol monomethyl ether
Dipropylene glycol monomethyl ether has hypotoxicity, low viscosity, the evaporation rate of low surface tension and appropriateness, good molten
Solution and coupling capacity.
The typical but non-limiting mass percentage of dipropylene glycol monomethyl ether is, for example, 10%, 11%, 12%, 13%,
14%, 15%, 16%, 17%, 18%, 19% or 20%.
Dipropylene glycol monomethyl ether is used as interfacial agent, assist infiltration, passes through 10~20% dipropylene glycol list first
Ether is used cooperatively with 65~80% C1-C4 low mass molecule alcohol, gum can be made to completely fall off, and will not damage glass matrix sheet
Body.
Phosphate flame retardant
Phosphate flame retardant belongs to additive flame retardant, and phosphate is to be reacted by corresponding alcohol or phenol with phosphorus trichloride, so
Hydrolysis is made afterwards.Typical but non-limiting phosphate flame retardant has tricresyl phosphate, triphenyl phosphate, phosphoric acid tri-isopropyl benzene
Ester, tributyl phosphate, trioctyl phosphate or cresyl diphenyl phosphate etc..New type of phosphate fire retardant, such as the Grent in the U.S.
Three (1- oxo -1- phospha -2,6,7- trioxa-l-phosphabicyclo [2,2,2] octane -4- methylene) phosphates of Lake company exploitation
(Trimer) and 1- oxygen -4- methylol -2,6,7- trioxa -1- phosphabicyclo [2,2,2] octane (PEPA).The spy of Trimer
Point is symmetrical configuration, and the phosphorus content of content up to 21.1%, the PEPA of phosphorus are 17.2%, both phosphate flame retardants are white powder
End, thermal stability are good.
The typical but non-limiting mass percentage of phosphate flame retardant is, for example, 3%, 4% or 5%.
There is good compatibility by using halogen-free environment-friendly type phosphate flame retardant and system, improve the fire-retardant of degumming agent
Property, convenient degumming in the high temperature environment uses.
C2-C4 low-carbon dihydric alcohol
Low-carbon dihydric alcohol refers mainly to ethylene glycol, propylene glycol or butanediol etc..Propylene glycol includes 1,2-PD or 1,3- third
Glycol.Butanediol includes 1,2- butanediol or 1,3-BDO.
The typical but non-limiting mass percentage of C2-C4 low-carbon dihydric alcohol is, for example, 7%, 8%, 9% or 10%.
7~10% C2-C4 low-carbon dihydric alcohol is added can form complete de-sizing system with other components, improve degumming
The whole boiling point of agent makes degumming agent that there is higher boiling to extend use scope suitable for using under high temperature environment.
" comprising " of the present invention, it is intended that it can also include other components, these other components especially except described group
Assign the degumming agent different characteristics.In addition to this, " comprising " of the present invention may be replaced by enclosed " for "
Or " by ... form ".
For example, degumming agent can also including surfactant etc. other components.
Traditional degumming agent includes the acid degumming agent of concentrated sulfuric acid formula, and the alkaline degumming agent of hydroxide aqueous solution formula is adopted
It is unobvious to gum degumming effect of the invention with these conventional degumming agents often without specific aim, and these degumming agents
PH value it is larger, not environmentally, be easy glass back cover is damaged, cause rear cover glass to turn blue, thoroughly and scratch etc. it is bad
Problem is unable to meet production demand.
Degumming agent of the invention is seeped using C1-C4 low mass molecule alcohol as main bleeding agent using dipropylene glycol monomethyl ether as auxiliary
Saturating agent enhances the osmotic effect of degumming agent, promotes falling off for colloid, and the mutual cooperation of the two can make colloid whole completely de-
It falls, not removing residual glue, and does not damage glass matrix, while phosphate flame retardant and C2-C4 low-carbon dihydric alcohol is added, formation has been stablized
Whole de-sizing system is hindered by 65~80%C1-C4 low mass molecule alcohol, 10~20% dipropylene glycol monomethyl ethers, 3~5% phosphates
Degumming agent made of mutual cooperation between combustion agent and 7~10%C2-C4 low-carbon dihydric alcohol effectively can make colloid fall off, no
Removing residual glue, degumming effect is good, not will cause rear cover glass turn blue, it is opaque and/or scratch etc. bad problem, degumming of the invention
Agent is the degumming agent that a kind of neutrality of high boiling environmental protection is easily washed.
In a preferred embodiment, degumming agent includes following component by mass percentage: C1-C4 low molecule
Alcohol 65~75%, dipropylene glycol monomethyl ether 15~20%, phosphate flame retardant 3~5% and C2-C4 low-carbon dihydric alcohol 7~
10%.
Further preferably, degumming agent includes following component by mass percentage: C1-C4 low mass molecule alcohol 70~75%, two
Propylene glycol monomethyl ether 15~18%, phosphate flame retardant 3~4% and C2-C4 low-carbon dihydric alcohol 7~8%.
By further optimizing the mass percent of each component, in the case where protecting glass matrix injury-free into one
Step improves the degumming effect and degumming efficiency to gum.
In a preferred embodiment, C1-C4 low mass molecule alcohol selects ethyl alcohol.
Using ethyl alcohol, penetration is strong, and degumming effect is more thorough, and glue does not have any residual.
In a preferred embodiment, phosphate flame retardant selects triphenyl phosphate.
Triphenyl phosphate (fire retardant TPP) is the halogen-free environment-friendly type flame-proof agent of kind of phosphorus element-containing, and most products are white
Flaky crystal or white crystalline powder are conducive to be dissolved in organic solvent, be more advantageous to using triphenyl phosphate to be formed stablize,
Uniform degumming solvent.
In a preferred embodiment, C2-C4 low-carbon dihydric alcohol is selected from ethylene glycol, 1,2-PD, 1,3- the third two
One or more of alcohol, 1,2- butanediol or 1,3-BDO, preferably ethylene glycol.
Ethylene glycol boiling point is higher, is conducive to the boiling point for improving whole degumming agent, uses under high temperature environment convenient for degumming agent,
Improve degumming effect and efficiency.
In a preferred embodiment, degumming agent includes following component by mass percentage: ethyl alcohol 65~80%,
Dipropylene glycol monomethyl ether 10~20%, triphenyl phosphate 3~5% and ethylene glycol 7~10%.
Preferably, degumming agent includes following component by mass percentage: ethyl alcohol 65~75%, dipropylene glycol monomethyl ether 15
~20%, triphenyl phosphate 3~5% and ethylene glycol 7~10%.
It is further preferred that degumming agent includes following component by mass percentage: ethyl alcohol 70~75%, dipropylene glycol list
Methyl ether 15~18%, triphenyl phosphate 3~4% and ethylene glycol 7~8%.
By 65~80% ethyl alcohol, 10~20% dipropylene glycol monomethyl ether, 3~5% triphenyl phosphate and 7~
The degumming agent that 10% ethylene glycol or other compositions is constituted is formed completely stable by the mutual cooperation between each density component
Degumming agent product can obtain excellent degumming effect, and the rear cover glass surface obtained after degumming is clean, transparent, not will cause
Glass turns blue or scratches.
According to the second aspect of the invention, a kind of Degumming method of mobile phone glass rear cover gum is provided, use is above-mentioned
Degumming agent for stripping mobile phone glass rear cover gum impregnates the mobile phone glass rear cover for posting the gum.
Immersion, which refers to, is immersed in the mobile phone glass rear cover for posting gum in degumming agent, can be detached from matrix after colloid removing.
The mobile phone glass rear cover for posting gum need to only be put into degumming agent to impregnate can be realized by the degumming tech effectively to be taken off
Glue, colloid is detached from matrix after immersion, and being not required to other processing can make colloid stripping clean, and colloid noresidue uses the degumming agent
Rear cover glass surface after immersion is clean, it is transparent, remained without colloid, not will cause glass and turn blue, not will cause glass corrosion or
It scratches, yield is high.In addition, the degumming tech is simple, stablizes, need to only impregnate can be realized degumming, facilitate mass degumming, product
Yield is stablized, and the product after degumming can do over again production again, save the cost.
In a preferred embodiment, soaking temperature be 80~90 DEG C, preferably 85~90 DEG C, further preferred 86~
88℃；And/or
Soaking time is 20~30min, preferably 20~25min, further preferred 22~25min.
Typical but non-limiting soaking temperature is 80 DEG C, 81 DEG C, 82 DEG C, 83 DEG C, 84 DEG C, 85 DEG C, 86 DEG C, 87 DEG C, 88
DEG C, 89 DEG C or 90 DEG C.
Typical but non-limiting soaking time be 20min, 22min, 24min, 25min, 26min, 28min or
30min。
The contact surface of colloid and glass can quickly and efficiently be penetrated by carrying out immersion degumming agent at high temperature, enable gum
Enough fast and effeciently to fall off, colloid does not remain, and soaking temperature is excessively high, and degumming agent ingredient is readily volatilized, and is easy to cause glass
Damage, soaking temperature is too low, and the time for needing to impregnate is long, the decline of degumming efficiency.
Preferably, ultrasound is carried out when immersion.
Ultrasound is carried out while immersion further gum to be promoted to fall off from glass matrix, accelerated scouring processes, improved
Degumming efficiency.
In a preferred embodiment, it is cleaned after being impregnated with degumming agent；Water is used after impregnating degumming with degumming agent
Remaining degumming agent on cleaning removal glass, avoids degumming agent extended residual from causing to corrode and damage glass back cover.Cleaning can
Impregnate or rinsed with water, rinsed to glass back cover with water.
Preferably, immersion way is used when cleaning；It is preferred that soaking time be 5~10min, preferably 5~8min, further it is excellent
Select 6~8min.
Soaking and water washing effectively can dilute remaining degumming agent in glass back cover, prevent from causing to corrode to glass back cover.
It is preferred that carrying out ultrasound when impregnating；It is more preferable, more efficient to be cleaned by ultrasonic effect simultaneously when washing is impregnated.
Preferably, deinking is carried out to mobile phone glass back cover after cleaning, obtains white glass.
Due to manually patch gum when will cause rubberizing deviation, influence product quality, need production of doing over again again, also can shadow
The ink of spraying early period is rung, therefore carries out deinking after removing gum, to obtain clean white glass, can be used as the white glass weight of raw material
New processing uses.
Deinking can be used conventional deinking agent and carry out deinking.
It is preferred that being washed and being dried after deinking, prevent deinking agent from remaining, the preferred drying of drying, final available cleaning
White glass.
Preferably, a kind of typical mobile phone glass rear cover degumming rework preocess, comprising the following steps:
(a) the mobile phone glass rear cover to degumming is put into 80~90 DEG C of degumming agent, impregnates 20~25min；
(b) soaking and washing is carried out to the mobile phone glass rear cover after degumming with water；
(c) deinking carried out to the mobile phone glass rear cover after cleaning, washed and dried, obtain white glass.
The typical mobile phone glass rear cover degumming rework preocess is by impregnating de- gum-cleaning-with 80~90 DEG C of degumming agents
De-oiling ink-cleaning step can obtain clean surface, without the remaining white glass of gum and ink, and white glass transparency is good, without scuffing,
Yield is high, meets the requirement as the white glass of raw material, is produced again, can be used as a kind of mobile phone glass rear cover degumming and does over again work
Skill has saved cost.
The removing for the mobile phone glass rear cover gum that this technique is suitable for needing to do over again again to patch bad gum, especially suitable for
Remove 3M H5530B gum.
According to the third aspect of the present invention, provide it is a kind of using above-mentioned for stripping mobile phone glass rear cover gum
Degumming agent carries out degumming process to mobile phone glass back cover or uses the Degumming method of above-mentioned mobile phone glass rear cover gum to mobile phone glass
Glass rear cover carries out the mobile phone glass rear cover obtained after degumming process.
Mobile phone glass rear cover after the degumming agent degumming will not turn blue without glue residua, glass, the corrosion-free damage in surface,
Glass transparent degree is high, can be re-used as white glass after deinking and do over again, and does not influence product and does over again quality, reusable.
In order to further appreciate that the present invention, the present invention is done with comparative example combined with specific embodiments below further details of
Explanation.Each raw material of the present invention can pass through commercially available acquisition.
Embodiment 1
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: second
Alcohol 65%, dipropylene glycol monomethyl ether 20%, triphenyl phosphate 5% and ethylene glycol 10%.
Embodiment 2
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: second
Alcohol 80%, dipropylene glycol monomethyl ether 10%, tricresyl phosphate 3% and 1,2-PD 7%.
Embodiment 3
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: second
Alcohol 73%, dipropylene glycol monomethyl ether 15%, tributyl phosphate 5% and ethylene glycol 7%.
Embodiment 4
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: first
Alcohol 73%, dipropylene glycol monomethyl ether 12%, trioctyl phosphate 5% and 1,3-PD 10%.
Embodiment 5
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: third
Alcohol 75%, dipropylene glycol monomethyl ether 15%, phosphoric acid tri-isopropyl benzene ester 3% and 1,2- butanediol 7%.
Embodiment 6
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: fourth
Alcohol 68%, dipropylene glycol monomethyl ether 18%, trioctyl phosphate 5% and ethylene glycol 9%.
Embodiment 7
A kind of degumming agent spraying clamp tool ink for stripping aluminium alloy, replaces with ethyl alcohol for the methanol in embodiment 4,
Remaining component and content are same as Example 4.
Embodiment 8
A kind of degumming agent spraying clamp tool ink for stripping aluminium alloy, replaces with ethyl alcohol for the propyl alcohol in embodiment 5,
Remaining component and content are same as Example 5.
Embodiment 9
A kind of degumming agent spraying clamp tool ink for stripping aluminium alloy, replaces with ethyl alcohol for the butanol in embodiment 6,
Remaining component and content are same as Example 6.
Embodiment 10-18
A kind of Degumming method of mobile phone glass rear cover gum, the degumming agent using embodiment 1-9 is to posting gum respectively
Mobile phone glass rear cover is impregnated.
Embodiment 19
A kind of Degumming method of mobile phone glass rear cover gum, using the degumming agent of embodiment 1 to the mobile phone glass for posting gum
Glass rear cover is impregnated, and soaking temperature is 80 DEG C, soaking time 30min.
Embodiment 20
A kind of Degumming method of mobile phone glass rear cover gum, using the degumming agent of embodiment 2 to the mobile phone glass for posting gum
Glass rear cover is impregnated, and soaking temperature is 90 DEG C, soaking time 20min.
Embodiment 21
A kind of Degumming method of mobile phone glass rear cover gum, using the degumming agent of embodiment 3 to the mobile phone glass for posting gum
Glass rear cover is impregnated, and soaking temperature is 85 DEG C, soaking time 25min.
Embodiment 22
A kind of Degumming method of mobile phone glass rear cover gum, soaking temperature is 60 DEG C as different from Example 19, remaining
Technological parameter is identical as embodiment 19.
Embodiment 23
A kind of Degumming method of mobile phone glass rear cover gum, soaking temperature is 100 DEG C as different from Example 19,
Remaining technological parameter is identical as embodiment 19.
Embodiment 24
A kind of mobile phone glass rear cover degumming rework preocess, comprising the following steps:
(1) the mobile phone glass rear cover to degumming is put into 80 DEG C of the degumming agent of embodiment 1, impregnates 25min；
(2) the mobile phone glass rear cover after degumming is impregnated with water, impregnates 10min；
(3) deinking (using FLIER AK200 deinking agent) carried out to the mobile phone glass rear cover after cleaning, washed and dried,
Obtain white glass.
Comparative example 1
It is a kind of that the ethyl alcohol in embodiment 1 being replaced with into ethyl acetate for stripping the degumming agent of mobile phone glass rear cover gum,
Remaining component and content are same as Example 1.
Comparative example 2
It is a kind of that the ethyl alcohol in embodiment 1 being replaced with into acetone for stripping the degumming agent of mobile phone glass rear cover gum, remaining
Component and content are same as Example 1.
Comparative example 3
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, by embodiment 1 dipropylene glycol monomethyl ether replace
For dimethyl ether, remaining component and content are same as Example 1.
Comparative example 4
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: second
Alcohol 90%, tricresyl phosphate 3% and 1,2-PD 7%.
Comparative example 5
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: two
Propylene glycol monomethyl ether 90%, tricresyl phosphate 3% and 1,2-PD 7%.
Comparative example 6
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: second
Alcohol 50%, dipropylene glycol monomethyl ether 35%, tributyl phosphate 5% and ethylene glycol 10%.
Comparative example 7
It is a kind of for stripping the degumming agent of mobile phone glass rear cover gum, be grouped as by the group of following mass percentage: second
Alcohol 85%, dipropylene glycol monomethyl ether 5%, tributyl phosphate 3% and ethylene glycol 7%.
Comparative example 8
LP-2237 acidity degumming agent (Leer Co., Ltd).
Comparative example 9
YA-513 alkalinity degumming agent (Yongan company).
Comparative example 10-18
A kind of Degumming method of mobile phone glass rear cover gum, the degumming agent using comparative example 1-9 is to posting gum respectively
Mobile phone glass rear cover is impregnated.
Test example
By taking 3M H5530B gum as an example, takes 240 to post 3M H5530B gum due to manual operation fault and need degumming
The mobile phone glass rear cover done over again, is randomly divided into 24 groups, and every group 10, respectively according to the de- of embodiment 10-24 and comparative example 10-18
Glue mode carries out degumming to each group mobile phone glass rear cover, to cell phone rear cover glass after the gum stripping degree of every set product and degumming
The carry out appearance test of glass, checks whether there is corrosive chameleon and/or scuffing, and calculates every group of yield.
Yield evaluation: the cell phone rear cover glass cement after degumming is detached from, and corrosion-free discoloration and scuffing, is denoted as qualification；Degumming
Cell phone rear cover glass cement afterwards turns blue without departing from, corrosive chameleon, thoroughly and/or does not have scuffing, is denoted as unqualified.
Gum strips degree evaluation:
Effective: gum is detached from cell phone rear cover glass matrix, and without glue residua；
Effective: gum is detached from cell phone rear cover glass matrix, there is less glue residua；
Invalid: gum is without departing from cell phone rear cover glass matrix；
Degumming effective percentage=(effective+effectively)/total number × 100%；
Degumming obvious effective rate=effective/total number × 100%.
The results are shown in Table 1 for gum stripping degree and yield.
1 gum of table strips degree and yield result
As can be seen from Table 1, had using the degumming that the degumming mode of embodiment 10-24 carries out mobile phone glass back cover after degumming
Efficiency is up to 100%, obvious effective rate up to 80% or more, hence it is evident that higher than comparative example 10-18；Using embodiment 10-24 degumming mode into
Cell phone rear cover glass cleaning is transparent after row degumming, corrosion-free discoloration and scuffing problem occur, and yield is higher than comparison up to 100%
Example 10-18, cell phone rear cover glass will appear corrosive chameleon, glass not after carrying out degumming using the degumming mode of comparative example 10-18
Transparent and/or scuffing problem occurs, and thus illustrates, is not only able to effectively using degumming agent provided by the present invention and Degumming method
Gum is removed, without glue residua on most of glass, glass is not will cause and turns blue, and glass transparent degree is high after degumming, will not go out
Now not saturating phenomenon, degumming agent will not damage glass matrix, cause glass scratch problem；And changes the formula of degumming agent or use existing
Some degumming agents carries out degumming or cannot effectively remove gum or stripping effect is bad, there are glue residua or will appear
Afterwards cover glass turn blue, not thoroughly, scratch etc. bad problem.
By further analyzing: embodiment 16-18 respectively compared with embodiment 13-15, by degumming agent prescription methanol,
Propyl alcohol and butanol replace with ethyl alcohol, and as a result degumming obvious effective rate is risen, it can be seen that, degumming more thorough using ethyl alcohol degumming
Afterwards without glue residua on glass.
For embodiment 19 compared with embodiment 22-23, soaking temperature is different, and the degumming obvious effective rate of embodiment 19 is higher than embodiment
22-23, it is seen that degumming effect can be promoted at a suitable temperature by impregnating, and glue removes more thorough.
Embodiment 24 is a kind of mobile phone glass rear cover degumming rework preocess, by using the technique to the mobile phone of patch bad gum
Glass back cover is done over again, and the bright white glass of no scuffing can be obtained.
Comparative example 10-11 replaces with ethyl acetate and third compared with Example 10, by the ethanol component in degumming agent respectively
Ketone, degumming effect decline, it is not saturating that degumming is not thorough easy residual colloid appearance；Comparative example 12 compared with Example 10, by degumming
Dipropylene glycol monomethyl ether in agent replaces with dimethyl ether, and degumming effect is also declined, comparative example 13 and embodiment
11 compare, and dipropylene glycol monomethyl ether is free of in degumming agent, and ethanol content is high, although degumming effect is obvious, is easy to damage glass
Matrix, comparative example 14 are free of ethyl alcohol, degumming effect is decreased obviously compared with embodiment 11 in degumming agent, it is seen that by ethyl alcohol and
The mutual cooperation of both dipropylene glycol monomethyl ethers, the good degumming effect of competence exertion, the missing of any ingredient all can be to degumming
The appearance of glass makes a big impact after effect or degumming.
Comparative example 15-16 is compared with embodiment 12, the content of ethyl alcohol and dipropylene glycol monomethyl ether and the present invention in degumming agent
Difference, degumming effective percentage and obvious effective rate decline, it is seen that only pass through the ethyl alcohol of specific proportion and dipropylene glycol monomethyl ether phase interworking
It closes, more thorough degumming effect could be obtained.
Comparative example 8 using commercially available acid degumming agent, comparative example 9 using commercially available alkaline degumming agent, can only small part have
Effect removing colloid, and colloid has residual, and the cell phone rear cover glass obtained after degumming becomes blue, glass transparent degree is low and has to glass and draws
Condition of the injury condition occurs, and product yield is low after degumming.
Degumming agent of the present invention is a kind of degumming agent close to neutrality, effectively colloid can be made to fall off, not removing residual glue, degumming effect
Fruit is good, in scouring processes will not corrosion damage glass matrix itself, not will cause glass scratch, turn blue and/or not saturating ask
Topic, can effectively strip cell phone rear cover gum.
Although illustrate and describing the present invention with specific embodiment, it will be appreciated that without departing substantially from of the invention
Many other change and modification can be made in the case where spirit and scope.It is, therefore, intended that wrapping in the following claims
Include all such changes and modifications belonged in the scope of the invention.
Claims (10)
1. a kind of for stripping the degumming agent of mobile phone glass rear cover gum, which is characterized in that the degumming agent is contained by quality percentage
Amount includes following component: C1-C4 low mass molecule alcohol 65~80%, dipropylene glycol monomethyl ether 10~20%, phosphate flame retardant 3~
5% and C2-C4 low-carbon dihydric alcohol 7~10%.
2. described in accordance with the claim 1 for stripping the degumming agent of mobile phone glass rear cover gum, which is characterized in that the degumming
Agent includes following component by mass percentage: C1-C4 low mass molecule alcohol 65~75%, dipropylene glycol monomethyl ether 15~20%, phosphorus
Ester flame-proof agent 3~5% and C2-C4 low-carbon dihydric alcohol 7~10%.
3. described in accordance with the claim 1 for stripping the degumming agent of mobile phone glass rear cover gum, which is characterized in that the degumming
Agent includes following component by mass percentage: C1-C4 low mass molecule alcohol 70~75%, dipropylene glycol monomethyl ether 15~18%, phosphorus
Ester flame-proof agent 3~4% and C2-C4 low-carbon dihydric alcohol 7~8%.
4. described in any item for stripping the degumming agent of mobile phone glass rear cover gum according to claim 1-3, which is characterized in that
The C1-C4 low mass molecule alcohol is selected from one or more of methanol, ethyl alcohol, propyl alcohol or butanol, preferred alcohol；And/or
The phosphate flame retardant is selected from tricresyl phosphate, triphenyl phosphate, phosphoric acid tri-isopropyl benzene ester, tributyl phosphate, phosphorus
Sour one or more of three monooctyl esters or cresyl diphenyl phosphate, preferably triphenyl phosphate；And/or
The C2-C4 low-carbon dihydric alcohol is selected from one or more of ethylene glycol, propylene glycol or butanediol, preferably ethylene glycol.
5. described in accordance with the claim 1 for stripping the degumming agent of mobile phone glass rear cover gum, which is characterized in that the degumming
Agent includes following component by mass percentage: ethyl alcohol 65~80%, dipropylene glycol monomethyl ether 10~20%, triphenyl phosphate 3
~5% and ethylene glycol 7~10%.
6. according to claim 5 for stripping the degumming agent of mobile phone glass rear cover gum, which is characterized in that the degumming
Agent includes following component by mass percentage: ethyl alcohol 65~75%, dipropylene glycol monomethyl ether 15~20%, triphenyl phosphate 3
~5% and ethylene glycol 7~10%；
Preferably, the degumming agent includes following component by mass percentage: ethyl alcohol 70~75%, dipropylene glycol monomethyl ether 15
~18%, triphenyl phosphate 3~4% and ethylene glycol 7~8%.
7. a kind of Degumming method of mobile phone glass rear cover gum, which is characterized in that use use described in any one of claims 1-6
The mobile phone glass rear cover for posting the gum is impregnated in the degumming agent of stripping mobile phone glass rear cover gum.
8. the Degumming method of mobile phone glass rear cover gum according to claim 7, which is characterized in that soaking temperature be 80~
90 DEG C, preferably 85~90 DEG C, further preferred 86~88 DEG C；And/or
Soaking time is 20~30min, preferably 20~25min, further preferred 22~25min；
Preferably, ultrasound is carried out when immersion.
9. according to the Degumming method of mobile phone glass rear cover gum described in claim 7 or 8, which is characterized in that soaked with degumming agent
It is cleaned after bubble；
Preferably, cleaning uses immersion way；
Preferably, ultrasound is carried out when immersion；
Preferably, deinking is carried out to mobile phone glass back cover after cleaning, obtains white glass.
10. using the degumming agent described in any one of claims 1-6 for stripping mobile phone glass rear cover gum to mobile phone glass
Rear cover carries out degumming process or uses the Degumming method of the described in any item mobile phone glass rear cover gums of claim 7-9 to mobile phone
Glass back cover carries out the mobile phone glass rear cover obtained after degumming process.
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|---|---|---|---|
| CN201810006283.9A CN109985876B (en) | 2018-01-03 | 2018-01-03 | Degumming agent for removing gum of mobile phone glass rear cover, degumming method for mobile phone glass rear cover gum and mobile phone glass rear cover |
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|---|---|---|---|
| CN201810006283.9A CN109985876B (en) | 2018-01-03 | 2018-01-03 | Degumming agent for removing gum of mobile phone glass rear cover, degumming method for mobile phone glass rear cover gum and mobile phone glass rear cover |
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