CN110184030A - A kind of preparation method of water-fast aging-resisting type gum - Google Patents
A kind of preparation method of water-fast aging-resisting type gum Download PDFInfo
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- CN110184030A CN110184030A CN201910462403.0A CN201910462403A CN110184030A CN 110184030 A CN110184030 A CN 110184030A CN 201910462403 A CN201910462403 A CN 201910462403A CN 110184030 A CN110184030 A CN 110184030A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J199/00—Adhesives based on natural macromolecular compounds or on derivatives thereof, not provided for in groups C09J101/00 -C09J107/00 or C09J189/00 - C09J197/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention discloses a kind of preparation methods of water-fast aging-resisting type gum, belong to gum technical field.The present invention is using coconut oil as raw material, fatty acid is reacted to obtain aliphatic ester under the catalytic action of sulfuric acid with glycerol, the main component of titanium dioxide is titanium dioxide, so that the active group on titanium dioxide powder surface and the active group on fatty acid ester surface are combined together by Hydrogen Binding Adsorption power, promote the resistance to ag(e)ing of gum, again using rice husk as raw material, by alkali leaching processing so that the lignin in rice husk decomposes, the element silicon contained in rice husk can react generation with sodium hydroxide and have sticking sodium metasilicate, so that in gum between each component, link between gum and metope matrix more closely, furfural and the phenol reactant of subsequent addition generate phenolic resin, phenol is easily reacted with the active hydroxyl groups on rice hull cellulose, shield the hydroxyl that partial hydrophilicity can be good, to improve the water resistance of gum produced by the present invention, it is answered with wide Use prospect.
Description
Technical field
The invention discloses a kind of preparation methods of water-fast aging-resisting type gum, belong to gum technical field.
Background technique
Billboard has been dispersed throughout the various aspects of life as a kind of mass media mode.Wherein, billboard
Carrier --- gum is also pressure-sensitive table printing material, is made by material of paper, plastic film, glue and release paper
Made of a kind of advertisement consumptive material in digital printing field, its front can have glue with air brushing picture, the back side, can be pasted onto exhibition
Plate, wall, on KT plate.
Crucial material is the selection of glue used in gum, that is, applies in pressure sensitive adhesive wherein.Acrylate pressure sensitive
Adhesive is the major class in pressure sensitive adhesive, and polymer has excellent weatherability, ultraviolet resistance, heat-resisting, water-fast, chemical resistance
Also excellent, transparent color and luster is good with fastness, thus is rapidly developed in recent years.
Currently, the adhesion strength between the generally existing pressure sensitive adhesive of state's inner wall pressure sensitive adhesive and wall substrate is lower, it is easy
The problems such as falling off and being easily broken off in drawing process.The presence of problems is brought very big to the application of wall gum
Inconvenience, while also constraining the development and application of wall gum, and be easy to cause in practical applications material waste and
Unnecessary economic loss.
Ceramic tile in paste process, due to by execution conditions, environment temperature, binding material, especially ceramic tile consistency and
The influence of water absorption rate, the phenomenon that often falling off；Ceramic tile gum is specifically applied to the back side process of wet combining ceramic tile, is also applied for
The stone material that low water absorption, quality are fine and close, surface is smooth, can effectively improve the adhesion strength between ceramic tile and binding material, solve
Certainly hollowing common in ceramic tile wet combining, the problems such as falling off.
As related patent discloses a kind of ceramic tile gum produced by pure acrylate elastic emulsion and styrene-acrylic emulsion and technique, the hair
The bright ceramic tile gum produced by pure acrylate elastic emulsion and styrene-acrylic emulsion, consisting of: 50~70 parts of pure acrylate elastic emulsion, phenylpropyl alcohol
50~30 parts of lotion, 0.1~0.2 part and 0.1~0.2 part of preservative of defoaming agent；Wherein, the composition of the pure acrylate elastic emulsion
Are as follows: 5~10 parts of methyl methacrylate, 40~60 parts of butyl acrylate, 1~5 part of hydroxy-ethyl acrylate, molecular weight regulator
0.05~0.09 part, 2~5 parts of anionic surfactant, 0.03~0.08 part of PH regulator, Kathon CG preservative 0.1~0.3
Part, 0.1~0.5 part of sodium peroxydisulfate, 40~50 parts of water；The composition of the styrene-acrylic emulsion are as follows: 20~30 parts of butyl acrylate, benzene second
15~28 parts of alkene, 2~4 parts of acrylamide, 1~2 part of 40EO fatty alcohol ether nonionic emulsifier, anionic surfactant 0.5
~1 part, 0.2~0.4 part of sodium peroxydisulfate, 0.1~0.2 part of defoaming agent, 0.1~0.2 part of preservative, portland cement wetting agent 1
~2 parts, 45~55 parts of water.Two-component ceramic tile gum in the prior art can make ceramic tile compared with cement-based material caking property
It is good, but the adhesive property between ceramic tile and cement-based material and metope needs to be further increased.
Therefore, a kind of highly desirable high, not easily to fall off, the water-tolerant that obtains adhesion strength of people, ageing-resistant performance are good
Wall gum.
Summary of the invention
Present invention mainly solves the technical issues of, for being bonded not between existing gum and wall substrate on the market at present
Jail is easy to fall off, water resistance, resistance to ag(e)ing and the bad defect of weatherability, provides a kind of water-fast aging-resisting type gum
Preparation method.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of water-fast aging-resisting type gum the preparation method comprises the following steps:
It will pre-process after object, phenol, the sodium hydroxide solution that mass fraction is 5% mix and be put into reaction kettle, be heated to 80
It~90 DEG C, is put into vacuum distillation apparatus after being stirred to react 2~3h, is evaporated under reduced pressure 30~40min, obtains mixture, will be modified
Titanium dioxide and mixture are put into stirring instrument, are stirred to react 40~50min, are discharged to get water-fast aging-resisting type gum；
Pre-process object the preparation method comprises the following steps:
(1) rice husk is put into pulverizer, crushes 20~30min, rice husk crushed material is obtained, by rice husk crushed material, mass fraction
After 10% sodium hydroxide solution mixing, pours into reaction kettle, be heated to 65~80 DEG C, after 30~40min of heat-insulation soaking
Filtering removes filtrate, collects filter residue；
(2) be put into thermophilic digestion tank after mix the malic acid solution that filter residue and mass fraction are 10%, temperature for 210~
230 DEG C, under conditions of pressure is 1.8~2.0MPa, 5~7h of thermophilic digestion obtains pretreatment object；
Modified titanium the preparation method comprises the following steps:
(1) coconut oil is poured into fermentor, while bed-silt and distilled water, sealed fermenter is added into fermentor
Mouthful, under conditions of temperature is 30~40 DEG C, ferments 1~2 week, obtain fermentation material；
(2) it pours into reaction kettle, is heated to after mixing above-mentioned fermentation material, glycerol, the sulfuric acid solution that mass fraction is 30%
110~130 DEG C, insulated and stirred 1~2h of esterification obtains reaction product after reaction；
(3) titanium dioxide is put into grinder, grinds 20~30min, obtains titanium dioxide powder, titanium dioxide powder, reaction are produced
Object is put into reaction kettle, under conditions of temperature is 30~35 DEG C, is stirred to react 60~80min, is obtained modified titanium.
In the preparation method of water-fast aging-resisting type gum, pretreatment object, phenol, the sodium hydroxide solution that mass fraction is 5%
Mass ratio be 2 ︰, 1 ︰ 5.
In the preparation method of water-fast aging-resisting type gum, the temperature of vacuum distillation is 70~80 DEG C, the pressure of vacuum distillation
For 900~1000Pa.
In the preparation method of water-fast aging-resisting type gum, the mass ratio of modified titanium and mixture is 1 ︰ 2.
In the preparation method for pre-processing object, the mass ratio for the sodium hydroxide solution that rice husk crushed material, mass fraction are 10% is
1 ︰ 3.
In the preparation method for pre-processing object, the mass ratio for the malic acid solution that filter residue and mass fraction are 10% is 1 ︰ 7.
In the preparation method of modified titanium, the additional amount of bed-silt is the 6~7% of coconut oil quality, and distilled water adds
Enter 10~15% that amount is coconut oil quality.
In the preparation method of modified titanium, the mass ratio for the sulfuric acid solution that fermentation material, glycerol, mass fraction are 30% is
2 ︰, 1 ︰ 1.
In the preparation method of modified titanium, titanium dioxide powder, reaction product mass ratio be 1 ︰ 1.
The beneficial effects of the present invention are:
Using coconut oil as raw material, coconut oil is put into fermentor first by the present invention, and fermented effect obtains fatty acid, will be fatty
Acid reacts to obtain aliphatic ester under the catalytic action of sulfuric acid with glycerol, and titanium dioxide powder is blended with aliphatic ester, is being heated
Under the conditions of stir so that the active group on the active group on titanium dioxide powder surface and fatty acid ester surface passes through Hydrogen Binding Adsorption power
It is combined together, so that titanium dioxide powder has waterproof performance, obtains modified titanium, then using rice husk as raw material, carry out to it
Thermophilic digestion is blended with organic carboxyl acid after alkali leaching processing, then reacts to obtain mixture under alkaline condition with phenol, by mixture
It is mixed with modified titanium up to water-fast aging-resisting type gum, the present invention is put into fermentor using coconut oil as raw material, by coconut oil
In, fermented effect obtains fatty acid, and fatty acid is reacted to obtain aliphatic ester, titanium white under the catalytic action of sulfuric acid with glycerol
The main component of powder is titanium dioxide, it has, and superior weatherability, heat resistance, chemical property are stable, refractive index is high, Neng Gouyou
Isolation ultraviolet is imitated, ageing-resistant performance is excellent, good weatherability does not crack under solar radiation, is non-discolouring, by titanium dioxide powder
It is blended with aliphatic ester, stirs in a heated condition, so that the active group on titanium dioxide powder surface and fatty acid ester surface
Active group is combined together by Hydrogen Binding Adsorption power, so that titanium dioxide powder has waterproof performance, is obtained modified titanium, is mentioned
Water resistance, the weatherability for having risen gum, enable gum isolation ultraviolet, promote the resistance to ag(e)ing of gum, then with rice husk are original
Material soaks processing by alkali so that the lignin in rice husk decomposes, and portion of cellulose, hemicellulose decompose, and the decomposition of lignin makes
It obtains cellulose, the hemicellulose not being decomposed to be separated from each other, this portion of cellulose plays the role of connection in gum and stretches, rice
Shell, which decomposes the substances such as carbohydrate, the pectin generated, also has viscosity, in addition, the element silicon contained in rice husk can be reacted with sodium hydroxide
The sticking sodium metasilicate of tool is generated to mention so that linking more closely between each component, between gum and metope matrix in gum
The high adhesive strength of gum keeps alkali leaching rice husk and organic carboxyl acid total so that gum is more firmly attached on metope matrix
During mixed thermophilic digestion, rice husk is hydrolyzed, and leads to the generation of furfural, the phenol reactant generation phenol of furfural and subsequent addition
The adhesive strength of urea formaldehyde, phenolic resin is high, using it as bonding agent, with heat-resist, ageing-resistant performance is good, water-fast, change
The stable feature of property is learned, so that the ageing-resistant performance and adhesive strength of gum are promoted, phenol is easily and on rice hull cellulose
Active hydroxyl groups reaction, shield partial hydrophilicity can good hydroxyl, to improve the water resistance of gum produced by the present invention,
It has broad application prospects.
Specific embodiment
Coconut oil is poured into fermentor, at the same into fermentor be added coconut oil quality 6~7% bed-silt and
The distilled water of coconut oil quality 10~15% is sealed by fermentation tank mouth, under conditions of temperature is 30~40 DEG C, ferments 1~2 week, obtains
To fermentation material；It is in mass ratio to be poured into instead after 2 ︰, 1 ︰ 1 is mixed by the sulfuric acid solution that above-mentioned fermentation material, glycerol, mass fraction are 30%
It answers in kettle, is heated to 110~130 DEG C, insulated and stirred 1~2h of esterification obtains reaction product after reaction；It will
Titanium dioxide is put into grinder, is ground 20~30min, is obtained titanium dioxide powder, and titanium dioxide powder, above-mentioned reaction product are pressed matter
Amount under conditions of temperature is 30~35 DEG C, is stirred to react 60~80min, obtains modified titanium white than being that 1 ︰ 1 is put into reaction kettle
Powder, it is spare；Rice husk is put into pulverizer, 20~30min is crushed, rice husk crushed material is obtained, by rice husk crushed material, mass fraction
Sodium hydroxide solution for 10% is after 1 ︰ 3 is mixed, to pour into reaction kettle in mass ratio, is heated to 65~80 DEG C, heat preservation leaching
It is filtered after 30~40min of bubble, removes filtrate, collect filter residue；The malic acid solution that above-mentioned filter residue and mass fraction are 10% is pressed into matter
Amount is 210~230 DEG C in temperature than being to be put into thermophilic digestion tank after 1 ︰ 7 is mixed, under conditions of pressure is 1.8~2.0MPa,
5~7h of thermophilic digestion obtains pretreatment object；Above-mentioned pretreatment object, phenol, the sodium hydroxide solution that mass fraction is 5% are pressed into matter
Amount is heated to 80~90 DEG C, is put into vacuum distillation after being stirred to react 2~3h than being to be put into reaction kettle after 2 ︰, 1 ︰ 5 is mixed
In device, it is 70~80 DEG C in temperature, under conditions of pressure is 900~1000Pa, is evaporated under reduced pressure 30~40min, is mixed
Spare modified titanium and mixture are that 1 ︰ 2 is put into stirring instrument, are stirred to react 40~50min by object in mass ratio, discharging,
Up to water-fast aging-resisting type gum.
Example 1
The preparation of modified titanium:
Coconut oil is poured into fermentor, while the bed-silt and coconut oil of coconut oil quality 6% being added into fermentor
The distilled water of amount 10% is sealed by fermentation tank mouth, under conditions of temperature is 30 DEG C, ferments 1 week, obtains fermentation material；
It is in mass ratio to pour into reaction kettle after 2 ︰, 1 ︰ 1 is mixed by the sulfuric acid solution that above-mentioned fermentation material, glycerol, mass fraction are 30%
In, 110 DEG C are heated to, insulated and stirred esterification 1h, after reaction, obtaining reaction product is aliphatic ester；
Titanium dioxide is put into grinder, 20min is ground, obtains titanium dioxide powder, titanium dioxide powder, above-mentioned fatty acid ester are pressed
Mass ratio is that 1 ︰ 1 is put into reaction kettle, under conditions of temperature is 30 DEG C, is stirred to react 60min, obtains modified titanium, standby
With；
Pre-process the preparation of object:
Rice husk is put into pulverizer, 20min is crushed, obtains rice husk crushed material, is 10% by rice husk crushed material, mass fraction
Sodium hydroxide solution is after 1 ︰ 3 is mixed, to pour into reaction kettle, be heated to 65 DEG C, mistake after heat-insulation soaking 30min in mass ratio
Filter removes filtrate, collects filter residue；
It with the malic acid solution that mass fraction is 10% is in mass ratio to be put into thermophilic digestion tank after 1 ︰ 7 is mixed by above-mentioned filter residue,
It is 210 DEG C in temperature, under conditions of pressure is 1.8MPa, thermophilic digestion 5h obtains pretreatment object；
The preparation of water-fast aging-resisting type gum:
It is in mass ratio to be put into instead after 2 ︰, 1 ︰ 5 is mixed by the sodium hydroxide solution that above-mentioned pretreatment object, phenol, mass fraction are 5%
It answers in kettle, is heated to 80 DEG C, be put into vacuum distillation apparatus after being stirred to react 2h, be 70 DEG C in temperature, pressure 900Pa
Under conditions of, it is evaporated under reduced pressure 30min, obtains mixture, is in mass ratio that 1 ︰ 2 is put into and stirs with mixture by spare modified titanium
It mixes in instrument, is stirred to react 40min, discharge to get water-fast aging-resisting type gum.
Example 2
The preparation of modified titanium:
Coconut oil is poured into fermentor, while the bed-silt and coconut oil of coconut oil quality 6% being added into fermentor
The distilled water of amount 12% is sealed by fermentation tank mouth, under conditions of temperature is 35 DEG C, ferments 1 week, obtains fermentation material；
It is in mass ratio to pour into reaction kettle after 2 ︰, 1 ︰ 1 is mixed by the sulfuric acid solution that above-mentioned fermentation material, glycerol, mass fraction are 30%
In, 120 DEG C are heated to, insulated and stirred esterification 1.5h, after reaction, obtaining reaction product is aliphatic ester；
Titanium dioxide is put into grinder, 25min is ground, obtains titanium dioxide powder, titanium dioxide powder, above-mentioned fatty acid ester are pressed
Mass ratio is that 1 ︰ 1 is put into reaction kettle, under conditions of temperature is 32 DEG C, is stirred to react 70min, obtains modified titanium, standby
With；
Pre-process the preparation of object:
Rice husk is put into pulverizer, 25min is crushed, obtains rice husk crushed material, is 10% by rice husk crushed material, mass fraction
Sodium hydroxide solution is after 1 ︰ 3 is mixed, to pour into reaction kettle, be heated to 75 DEG C, mistake after heat-insulation soaking 35min in mass ratio
Filter removes filtrate, collects filter residue；
It with the malic acid solution that mass fraction is 10% is in mass ratio to be put into thermophilic digestion tank after 1 ︰ 7 is mixed by above-mentioned filter residue,
It is 220 DEG C in temperature, under conditions of pressure is 1.9MPa, thermophilic digestion 6h obtains pretreatment object；
The preparation of water-fast aging-resisting type gum:
It is in mass ratio to be put into instead after 2 ︰, 1 ︰ 5 is mixed by the sodium hydroxide solution that above-mentioned pretreatment object, phenol, mass fraction are 5%
It answers in kettle, is heated to 85 DEG C, be put into vacuum distillation apparatus after being stirred to react 2.5h, be 75 DEG C in temperature, pressure is
Under conditions of 950Pa, it is evaporated under reduced pressure 35min, obtains mixture, is in mass ratio 1 ︰ 2 by spare modified titanium and mixture
It is put into stirring instrument, is stirred to react 45min, discharge to get water-fast aging-resisting type gum.
Example 3
The preparation of modified titanium:
Coconut oil is poured into fermentor, while the bed-silt and coconut oil of coconut oil quality 7% being added into fermentor
The distilled water of amount 15% is sealed by fermentation tank mouth, under conditions of temperature is 40 DEG C, ferments 2 weeks, obtains fermentation material；
It is in mass ratio to pour into reaction kettle after 2 ︰, 1 ︰ 1 is mixed by the sulfuric acid solution that above-mentioned fermentation material, glycerol, mass fraction are 30%
In, 130 DEG C are heated to, insulated and stirred esterification 2h, after reaction, obtaining reaction product is aliphatic ester；
Titanium dioxide is put into grinder, 30min is ground, obtains titanium dioxide powder, titanium dioxide powder, above-mentioned fatty acid ester are pressed
Mass ratio is that 1 ︰ 1 is put into reaction kettle, under conditions of temperature is 35 DEG C, is stirred to react 80min, obtains modified titanium, standby
With；
Pre-process the preparation of object:
Rice husk is put into pulverizer, 30min is crushed, obtains rice husk crushed material, is 10% by rice husk crushed material, mass fraction
Sodium hydroxide solution is after 1 ︰ 3 is mixed, to pour into reaction kettle, be heated to 80 DEG C, mistake after heat-insulation soaking 40min in mass ratio
Filter removes filtrate, collects filter residue；
It with the malic acid solution that mass fraction is 10% is in mass ratio to be put into thermophilic digestion tank after 1 ︰ 7 is mixed by above-mentioned filter residue,
It is 230 DEG C in temperature, under conditions of pressure is 2.0MPa, thermophilic digestion 7h obtains pretreatment object；
The preparation of water-fast aging-resisting type gum:
It is in mass ratio to be put into instead after 2 ︰, 1 ︰ 5 is mixed by the sodium hydroxide solution that above-mentioned pretreatment object, phenol, mass fraction are 5%
It answers in kettle, is heated to 90 DEG C, be put into vacuum distillation apparatus after being stirred to react 3h, be 80 DEG C in temperature, pressure is
Under conditions of 1000Pa, it is evaporated under reduced pressure 40min, obtains mixture, is in mass ratio 1 ︰ 2 by spare modified titanium and mixture
It is put into stirring instrument, is stirred to react 50min, discharge to get water-fast aging-resisting type gum.
Comparative example 1: it is essentially identical with the preparation method of example 2, it has only the difference is that lacking modified titanium.
Comparative example 2: it is essentially identical with the preparation method of example 2, it has only the difference is that lacking pretreatment object.
Comparative example 3: the water-fast aging-resisting type gum of Dongguan company production.
Peel strength test is detected by 180 ° of peeling strength test methods of GB/T2790 adhesive.
Resistance to ag(e)ing test: the gum in example 1~3 and comparative example is coated on surface of wall, is placed in 170 DEG C of constant temperature
After 3 hours, yellowness index is tested.
Weatherability test: the gum in example 1~3 and comparative example is coated on surface of wall, receives ultraviolet light irradiation, spoke
Yellowness index is tested with ultraviolet-uisible spectrophotometer according to after 6 hours.
Yellowness index test method is tested by the saying of xanthochromia series Δ Yi, is divided by yellowness index:
0 grade: without discoloration, Δ Yi≤1.5；
1 grade: very light discolouration, 1.6 < Δ Yi≤3.0；
2 grades: light discolouration, 3.1 < Δ Yi≤6.0；
3 grades: obvious discoloration, 6.1 < Δ Yi≤9.0；
4 grades: larger discoloration, 9.1 < Δ Yi≤12.0；
5 grades: serious discoloration, 12.0 < Δ Yi.
Water resistance test: the gum in example 1~3 and comparative example is coated on surface of wall, after dry, in 80 DEG C of hot water
Middle immersion 1h tests fastness.
1 gum performance measurement result of table
| Test item | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| 180 ° of peel strengths (pound/25mm) | 4.3 | 4.4 | 4.5 | 2.0 | 2.5 | 2.7 |
| 170 DEG C of constant temperature, 3 hours yellowness index (Δ Yi) | 1.0 | 0.8 | 0.7 | 4.5 | 3.2 | 3.4 |
| Ultraviolet light irradiation post yellowing index (Δ Yi) | 0.9 | 0.8 | 0.7 | 5.6 | 4.2 | 3.9 |
| Water resistance | √ | √ | √ | √× | × | √× |
Note: in table 1, fastness power is successively are as follows: and √ > √ × > ×, water resistance power is successively are as follows: and √ > √ × > ×.
High, gum and wall substrate according to above-mentioned detection data water-fast aging-resisting type gum peel strength of the invention
Caking property it is good, not easily to fall off, ageing-resistant and good weatherability, non-xanthochromia, the fastness after impregnating 1h in water is high, water-tolerant,
It has broad application prospects.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of water-fast aging-resisting type gum, it is characterised in that specific preparation step are as follows:
It will pre-process after object, phenol, the sodium hydroxide solution that mass fraction is 5% mix and be put into reaction kettle, be heated to 80
It~90 DEG C, is put into vacuum distillation apparatus after being stirred to react 2~3h, is evaporated under reduced pressure 30~40min, obtains mixture, will be modified
Titanium dioxide and mixture are put into stirring instrument, are stirred to react 40~50min, are discharged to get water-fast aging-resisting type gum；
The preparation step of the pretreatment object are as follows:
(1) rice husk is put into pulverizer, crushes 20~30min, rice husk crushed material is obtained, by rice husk crushed material, mass fraction
After 10% sodium hydroxide solution mixing, pours into reaction kettle, be heated to 65~80 DEG C, after 30~40min of heat-insulation soaking
Filtering removes filtrate, collects filter residue；
(2) be put into thermophilic digestion tank after mix the malic acid solution that filter residue and mass fraction are 10%, temperature for 210~
230 DEG C, under conditions of pressure is 1.8~2.0MPa, 5~7h of thermophilic digestion obtains pretreatment object；
The preparation step of the modified titanium are as follows:
(1) coconut oil is poured into fermentor, while bed-silt and distilled water, sealed fermenter is added into fermentor
Mouthful, under conditions of temperature is 30~40 DEG C, ferments 1~2 week, obtain fermentation material；
(2) it pours into reaction kettle, is heated to after mixing above-mentioned fermentation material, glycerol, the sulfuric acid solution that mass fraction is 30%
110~130 DEG C, insulated and stirred 1~2h of esterification obtains reaction product after reaction；
(3) titanium dioxide is put into grinder, grinds 20~30min, obtains titanium dioxide powder, titanium dioxide powder, reaction are produced
Object is put into reaction kettle, under conditions of temperature is 30~35 DEG C, is stirred to react 60~80min, is obtained modified titanium.
2. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: described water-fast resistance to
In the specific preparation step of aging type gum, the mass ratio for the sodium hydroxide solution that pretreatment object, phenol, mass fraction are 5% is
2 ︰, 1 ︰ 5.
3. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: described water-fast resistance to
In the specific preparation step of aging type gum, the temperature of vacuum distillation is 70~80 DEG C, the pressure of vacuum distillation is 900~
1000Pa。
4. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: described water-fast resistance to
In the specific preparation step of aging type gum, the mass ratio of modified titanium and mixture is 1 ︰ 2.
5. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: the pretreatment
In the preparation step (1) of object, the mass ratio for the sodium hydroxide solution that rice husk crushed material, mass fraction are 10% is 1 ︰ 3.
6. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: the pretreatment
In the preparation step (2) of object, the mass ratio for the malic acid solution that filter residue and mass fraction are 10% is 1 ︰ 7.
7. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: the Modified Titanium
In the preparation step (1) of white powder, the additional amount of bed-silt is the 6~7% of coconut oil quality, and the additional amount of distilled water is coconut
The 10~15% of oil quality.
8. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: the Modified Titanium
In the preparation step (2) of white powder, the mass ratio for the sulfuric acid solution that fermentation material, glycerol, mass fraction are 30% is 2 ︰, 1 ︰ 1.
9. a kind of preparation method of water-fast aging-resisting type gum according to claim 1, it is characterised in that: the Modified Titanium
In the preparation step (3) of white powder, titanium dioxide powder, reaction product mass ratio be 1 ︰ 1.
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| CN201910462403.0A CN110184030A (en) | 2019-05-30 | 2019-05-30 | A kind of preparation method of water-fast aging-resisting type gum |
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| CN112094067A (en) * | 2020-09-02 | 2020-12-18 | 中国建筑第五工程局有限公司 | Method for preventing drying and cracking of undisturbed shield muck baking-free product |
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| CN108559564A (en) * | 2018-07-11 | 2018-09-21 | 佛山腾鲤新能源科技有限公司 | A kind of preparation method of water repellent bio matter briquette binder |
| CN109206117A (en) * | 2018-09-21 | 2019-01-15 | 佛山齐安建筑科技有限公司 | A kind of preparation method of the ageing-resistant wall heat insulation material of high tenacity |
| CN109336463A (en) * | 2018-10-29 | 2019-02-15 | 俞小峰 | A kind of preparation method of water proof type high-adhesive-strength clay |
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| CN108559564A (en) * | 2018-07-11 | 2018-09-21 | 佛山腾鲤新能源科技有限公司 | A kind of preparation method of water repellent bio matter briquette binder |
| CN109206117A (en) * | 2018-09-21 | 2019-01-15 | 佛山齐安建筑科技有限公司 | A kind of preparation method of the ageing-resistant wall heat insulation material of high tenacity |
| CN109336463A (en) * | 2018-10-29 | 2019-02-15 | 俞小峰 | A kind of preparation method of water proof type high-adhesive-strength clay |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112094067A (en) * | 2020-09-02 | 2020-12-18 | 中国建筑第五工程局有限公司 | Method for preventing drying and cracking of undisturbed shield muck baking-free product |
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Application publication date: 20190830 |