CN109898365A - A kind of preparation method of paper surface sizing agent - Google Patents
A kind of preparation method of paper surface sizing agent Download PDFInfo
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- CN109898365A CN109898365A CN201910126670.0A CN201910126670A CN109898365A CN 109898365 A CN109898365 A CN 109898365A CN 201910126670 A CN201910126670 A CN 201910126670A CN 109898365 A CN109898365 A CN 109898365A
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Abstract
The present invention relates to a kind of preparation methods of paper surface sizing agent, belong to papermaking chemical product preparation technical field.The present invention is using bagasse as raw material, after processing with sodium chloride, potassium chloride is mixed to prepare mixed serum, again Soybean Leaves and soybean stem are carried out handling obtained grinding product, pre product is made in grinding product and mixed serum mixed fermentation, finally by pre product and macromolecule organic polymer, potassium sulfate etc. mixes up to paper surface sizing agent, organic fiber in bagasse is separated, sucrose bonding is set to be adsorbed in fiber surface, reinforce sizing agent to the adhesive property of paper, improve the folding quality of paper, the present invention utilizes the endogenetic bacteria growth metabolism in soybean plant strain, plant fiber is decomposed in fermentation, then it is mixed into each molecule in tetraethyl orthosilicate cladding sizing agent, it generates silica dioxide granule bonding and is adsorbed in fiber surface, to improve the degree of roughness of fiber, enhance paper water resistance and surface strength, it is answered with wide Use prospect.
Description
Technical field
The present invention relates to a kind of preparation methods of paper surface sizing agent, belong to papermaking chemical product preparation technical field.
Background technique
In recent years, with global resources waste it is increasingly severe, in response to world's strategy of sustainable development demand, from
Raw material based on preceding timber gradually become to based on the recycling and reusing of waste paper.Paper is recycled by multiple repetition
After utilization, the fiber of paper pulp will shorten, intensity is deteriorated, so also can be very poor at the paper performance of paper, quality.With people couple
Paper performance, Safety and Environmental Protection requirement be continuously improved, develop efficient, environmentally protective Cypres become urgently solve
Certainly the technical issues of.
Cypres are a kind of additive for paper making.It typically refers to be applied with sizing applicator to paper at paper either cardboard
It is affixed by glue and is perhaps directly immersed in sizing solution and form one layer of micelle and make into paper or cardboard tool after sizing agent is dry
There is certain surface strength.Sizing is so that natural fiber network is hydrophobic and therefore prevent or reduce water or other liquid, aqueous infiltrations
It can also prevent ink or printing colorant from sprawling and penetrating in paper.Top sizing assigns paper excellent performance, adapts to mesh
The growth requirement of preceding papermaking and printing industry, while also complying with the main trend of development.
Currently used Cypres mainly have modified and unmodified starch, guar gum, paraffin wax emulsions, animal glue,
Carboxymethyl cellulose, polyurethane, styrene-maleic anhydride copolymer etc..But these sizing agents are generally existing:
(1) the case where water-resistance is poor, and viscosity is small, and dosage is big in Process of Applying Glue, and rate of drying is slow, easily gets damp；(2)
Stability is poor, generation phenomena such as after a long time placement, having layering；
(3) paper is also easy to produce the problems such as surface strength is low, smoothness is low, folding strength is low, it is difficult to meet wanting for paper industry production
It asks.
Therefore, it is urgent to provide a kind of water-resistance, and strong, Cypres that stability is good and preparation method thereof have important meaning
Justice.
Summary of the invention
The technical problems to be solved by the invention: for current Cypres to the folding quality of paper after sheet processing
The undesirable defect of bad, poor water resistance, surface strength, provides a kind of preparation method of paper surface sizing agent.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
The specific preparation step of paper surface sizing agent are as follows:
Polyvinyl alcohol, butyl acrylate and pre product are put into blender, temperature be 85~95 DEG C, revolving speed be 300~
Under conditions of 350r/min be mixed 40~50min be made blended product, weigh blended product, trimethylmethoxysilane and
Potassium sulfate is put into reaction kettle, increases temperature in the kettle to 75~85 DEG C, mixing is stirred under conditions of revolving speed is 300~400r/min
60~80min is mixed, is discharged up to paper surface sizing agent；
The specific preparation step of pre product are as follows:
(1) grinding product is uniformly mixed with putting into fermenter to fermentation liquid, by fermentor opening be placed in temperature be 30~
In 36 DEG C of greenhouse, constant temperature stands 6~8 days obtained tunnings, tunning is put into reaction kettle, by reactor temperature
80~90 DEG C are increased to, constant temperature stands 2~3h and mix products are made；
(2) it is dried in the baking oven for being 105~115 DEG C by mix products investment temperature, puts into and burn with tetraethyl orthosilicate after drying
It is uniformly mixed and is made to reaction product in cup, ammonium hydroxide is added dropwise with the drop rate of 25~30mL/min into beaker, magnetic force is added
Ball and sealed beaker are stirred 2~3h under conditions of magnetic force revolving speed is 300~400r/min, are obtained by filtration after stirring
Filter cake, wash with distilled water 3~5 times and put into baking oven temperature be 105~115 DEG C under conditions of drying prefabricated production is made
Object；
The specific preparation step of grinding product are as follows:
(1) it weighs in 600~800g bagasse investment reaction kettle, is impregnated with the sodium hydroxide solution that mass fraction is 6~10%,
It is filled with nitrogen into kettle, increases in kettle air pressure to 1.0~1.2MPa, closed reactor and simultaneously increase temperature in the kettle to 110~120
DEG C, constant temperature and pressure reacts 120~140h and reaction mixture is made；
(2) weigh in reaction mixture, sodium chloride, potassium chloride and propanedione investment three-necked flask, with blender with 400~
30~40min is mixed in the revolving speed of 500r/min, is placed the beaker in sonic oscillation instrument after stirring, frequency be 32~
3~5h is vibrated under conditions of 36kHz, and mixed serum is made；
(3) citric acid solution that mass fraction is 5~7% is added dropwise into three-necked flask, adjusts pH value to neutrality and is made wait ferment
Liquid successively uses the liquor natrii hypochloritis that dehydrated alcohol and mass fraction are 10~14% in Soybean Leaves and soybean stem investment beaker
5~6min is impregnated, postposition is impregnated in a vacuum drying oven, in the condition that temperature is 40~50 DEG C, vacuum degree is 100~120Pa
120~150min of lower concentrate drying puts into planetary ball mill after dry and grinds obtained grinding product.
Preferably according to parts by weight, polyvinyl alcohol is 32~34 parts, butyl acrylate is 8~11 parts, pre product 6
~8 parts.
Preferably according to parts by weight, blended product is 30~32 parts, trimethylmethoxysilane is 2~3 parts, potassium sulfate
It is 0.6~0.8 part.
Grinding product and the mass ratio to fermentation liquid are 1:5 in the specific preparation step (1) of pre product.
The mass ratio of mix products and tetraethyl orthosilicate is 20:1 in the specific preparation step (2) of pre product.
The quality for the ammonium hydroxide that the mass fraction being added dropwise in the specific preparation step (2) of pre product into beaker is 6~8%
For 6~10% to reaction product quality.
In the specific preparation step (2) of grinding product preferably according to parts by weight, reaction mixture is 30~32 parts, chlorine
Change sodium is 1~2 part, potassium chloride is 0.6~0.8 part, propanedione is 5~7 parts.
The mass ratio of Soybean Leaves and soybean stem is 2:1 in the specific preparation step (2) of grinding product.
The method have the benefit that:
(1) present invention first impregnates bagasse in sodium hydroxide solution, while carrying out high temperature high pressure process, is added after processing
Sodium chloride, potassium chloride, which are mixed, is made mixed serum, then by Soybean Leaves and soybean stem with liquor natrii hypochloritis and dehydrated alcohol
Cleaning, grinding product is made in drying and grinding after cleaning, then mixes grinding product with mixed serum and carries out at microbial fermentation
Reason, mixes after fermentation with tetraethyl orthosilicate, and ammonium hydroxide reaction is added dropwise, and dries after reaction and pre product is made, finally will be prefabricated
Product stirs at high temperature with macromolecule organic polymer, and potassium sulfate is added, trimethylmethoxysilane continuess to mix stirring
Up to paper surface sizing agent, bagasse is placed in lye by the present invention to be impregnated, and makes to have in bagasse by high temperature high pressure process
Machine fibre composition is separated, and is had sugar composition abundant in bagasse, is made sugarcane by alkaline reaction and high temperature high pressure process
Sugar decomposition generates small molecule carbohydrate molecule, generates more hydroxyl radical free radicals, is easy to be formed between fiber and other ingredients
Hydrogen Binding Adsorption, increases the Adhesion property between each ingredient, and isolated fibre composition bonding carbohydrate molecule keeps carbohydrate molecule viscous
Knot is adsorbed in fiber surface, passes through hydroxyl, the carboxyl free radical having in itself in hydroxyl group a large amount of in carbohydrate and fiber
So that fiber is formed the network-like structure being crosslinked mutually in the microstructure of sizing agent, keeps the crosslinking degree of molecule, crosslinking close
Degree enhancing, and sizing agent is strengthened to the adhesive property of paper, improve the folding quality of paper；
(2) stem in Soybean Leaves and soybean plant strain is ground post-fermentation and is added in sizing agent by the present invention, utilizes soybean plant strain
In endogenetic bacteria growth metabolism, plant fiber is decomposed in fermentation, while decomposing sucrose provides more hydroxyl groups, further increases
Strong cross-linking bonds degree, each molecule in tetraethyl orthosilicate cladding sizing agent is then mixed into, by generating with after the reacting of ammonium hydroxide
Silica dioxide granule bonding is adsorbed in fiber surface, to improve the degree of roughness of fiber, processes in sizing agent to paper
Afterwards, silica dioxide granule enhances paper water resistance and surface strength, has broad application prospects.
Specific embodiment
It weighs in 600~800g bagasse investment reaction kettle, is impregnated with the sodium hydroxide solution that mass fraction is 6~10%,
It is filled with nitrogen into kettle, increases in kettle air pressure to 1.0~1.2MPa, closed reactor and simultaneously increase temperature in the kettle to 110~120
DEG C, constant temperature and pressure reacts 120~140h and reaction mixture is made；According to parts by weight, 30~32 parts of above-mentioned reaction mixing are weighed
In object, 1~2 part of sodium chloride, 0.6~0.8 part of potassium chloride and 5~7 parts of propanedione investment three-necked flasks, with blender with 400~
30~40min is mixed in the revolving speed of 500r/min, is placed the beaker in sonic oscillation instrument after stirring, frequency be 32~
3~5h is vibrated under conditions of 36kHz, and mixed serum is made；The lemon that mass fraction is 5~7% is added dropwise into above-mentioned three-necked flask
Acid solution adjusts pH value to neutrality and is made to fermentation liquid, Soybean Leaves and soybean stem 2:1 in mass ratio put into beaker, successively
5~6min is impregnated with the liquor natrii hypochloritis that dehydrated alcohol and mass fraction are 10~14%, immersion is placed on vacuum oven
In, it is concentrated and dried 120~150min under conditions of temperature is 40~50 DEG C, vacuum degree is 100~120Pa, is put into after dry
It is ground in planetary ball mill and grinding product is made；Above-mentioned grinding product is putted into fermenter with to fermentation liquid 1:5 in mass ratio
It being uniformly mixed, fermentor opening is placed in the greenhouse that temperature is 30~36 DEG C, constant temperature stands 6~8 days obtained tunnings,
Tunning is put into reaction kettle, reactor temperature is increased to 80~90 DEG C, constant temperature stands 2~3h and mixing production is made
Object；It is dried in the baking oven for being 105~115 DEG C by above-mentioned mix products investment temperature, presses quality with tetraethyl orthosilicate after drying
Be made than being uniformly mixed in 20:1 investment beaker to reaction product, into beaker with the drop rate of 25~30mL/min be added dropwise to
The ammonium hydroxide that the mass fraction of reaction product quality 6~10% is 6~8% is added magnetic force ball and sealed beaker, is in magnetic force revolving speed
It is stirred 2~3h under conditions of 300~400r/min, filter cake is obtained by filtration after stirring, 3~5 times and throws wash with distilled water
Enter to dry under conditions of temperature is 105~115 DEG C in baking oven and pre product is made；According to parts by weight, poly- by 32~34 parts
It is 85~95 DEG C, turns in temperature in vinyl alcohol, 8~11 parts of butyl acrylates and 6~8 parts of above-mentioned pre product investment blenders
Speed is mixed 40~50min under conditions of being 300~350r/min and blended product is made, according to parts by weight, weigh 30~
In 32 parts of blended products, 2~3 parts of trimethylmethoxysilanes and 0.6~0.8 part of potassium sulfate investment reaction kettle, temperature in kettle is increased
60~80min is mixed to 75~85 DEG C in degree under conditions of revolving speed is 300~400r/min, discharges up to paper surface
Sizing agent.
The preparation of reaction mixture: it weighs in 600g bagasse investment reaction kettle, the sodium hydroxide for being 6% with mass fraction
Solution dipping, is filled with nitrogen into kettle, increases in kettle air pressure to 1.0MPa, and closed reactor simultaneously increases temperature in the kettle to 110 DEG C,
Constant temperature and pressure reacts 120h and reaction mixture is made.
The preparation of mixed serum: according to parts by weight, 30 parts of above-mentioned reaction mixtures, 1 part of sodium chloride, 0.6 part of chlorine are weighed
Change in potassium and 5 parts of propanedione investment three-necked flasks, 30min is mixed with the revolving speed of 400r/min with blender, it will after stirring
Beaker is placed in sonic oscillation instrument, and mixed serum is made in oscillation 3h under conditions of frequency is 32kHz.
The preparation of grinding product: the citric acid solution that mass fraction is 5% is added dropwise in Xiang Shangshu three-necked flask, adjusts pH value
It is made to neutrality to fermentation liquid, by Soybean Leaves and soybean stem 2:1 in mass ratio investment beaker, successively uses dehydrated alcohol and quality
The liquor natrii hypochloritis that score is 10% impregnates 5min, postposition is impregnated in a vacuum drying oven, temperature is 40 DEG C, vacuum degree is
It is concentrated and dried 120min under conditions of 100Pa, is put into after dry in planetary ball mill and grinds obtained grinding product.
The preparation of mix products: by above-mentioned grinding product with putted into fermenter to fermentation liquid 1:5 in mass ratio mix
It is even, fermentor opening is placed in the greenhouse that temperature is 30 DEG C, constant temperature stands 6 days obtained tunnings, and tunning is thrown
Enter in reaction kettle, reactor temperature is increased to 80 DEG C, constant temperature stands 2h and mix products are made.
The preparation of pre product: being to dry in 105 DEG C of baking oven by above-mentioned mix products investment temperature, after drying with positive silicon
Sour tetra-ethyl ester 20:1 in mass ratio puts into be uniformly mixed in beaker and be made to reaction product, into beaker with the dropwise addition of 25mL/min
The ammonium hydroxide that it is 6% to the mass fraction of reaction product quality 6% that rate, which is added dropwise, is added magnetic force ball and sealed beaker, turns in magnetic force
Speed is stirred 2h under conditions of being 300r/min, and filter cake is obtained by filtration after stirring, 3 times and puts into baking oven wash with distilled water
It is dried under conditions of temperature is 105 DEG C and pre product is made.
The preparation of paper surface sizing agent: according to parts by weight, will be on 32 parts of polyvinyl alcohol, 8 parts of butyl acrylates and 6 parts
It states in pre product investment blender, 40min is mixed under conditions of temperature is 85 DEG C, revolving speed is 300r/min and is made altogether
Mixed product weighs 30 parts of blended products, 2 parts of trimethylmethoxysilanes and 0.6 part of potassium sulfate investment reaction according to parts by weight
In kettle, temperature in the kettle is increased to 75 DEG C, 60min is mixed under conditions of revolving speed is 300r/min, is discharged up to paper table
Surface sizing agent.
The preparation of reaction mixture: it weighs in 700g bagasse investment reaction kettle, the sodium hydroxide for being 8% with mass fraction
Solution dipping, is filled with nitrogen into kettle, increases in kettle air pressure to 1.1MPa, and closed reactor simultaneously increases temperature in the kettle to 115 DEG C,
Constant temperature and pressure reacts 130h and reaction mixture is made.
The preparation of mixed serum: according to parts by weight, 31 parts of above-mentioned reaction mixtures, 1 part of sodium chloride, 0.7 part of chlorine are weighed
Change in potassium and 6 parts of propanedione investment three-necked flasks, 35min is mixed with the revolving speed of 450r/min with blender, it will after stirring
Beaker is placed in sonic oscillation instrument, and mixed serum is made in oscillation 4h under conditions of frequency is 34kHz.
The preparation of grinding product: the citric acid solution that mass fraction is 6% is added dropwise in Xiang Shangshu three-necked flask, adjusts pH value
It is made to neutrality to fermentation liquid, by Soybean Leaves and soybean stem 2:1 in mass ratio investment beaker, successively uses dehydrated alcohol and quality
The liquor natrii hypochloritis that score is 12% impregnates 5min, postposition is impregnated in a vacuum drying oven, temperature is 45 DEG C, vacuum degree is
It is concentrated and dried 130min under conditions of 110Pa, is put into after dry in planetary ball mill and grinds obtained grinding product.
The preparation of mix products: by above-mentioned grinding product with putted into fermenter to fermentation liquid 1:5 in mass ratio mix
It is even, fermentor opening is placed in the greenhouse that temperature is 34 DEG C, constant temperature stands 7 days obtained tunnings, and tunning is thrown
Enter in reaction kettle, reactor temperature is increased to 85 DEG C, constant temperature stands 2h and mix products are made.
The preparation of pre product: being to dry in 110 DEG C of baking oven by above-mentioned mix products investment temperature, after drying with positive silicon
Sour tetra-ethyl ester 20:1 in mass ratio puts into be uniformly mixed in beaker and be made to reaction product, into beaker with the dropwise addition of 27mL/min
The ammonium hydroxide that it is 7% to the mass fraction of reaction product quality 8% that rate, which is added dropwise, is added magnetic force ball and sealed beaker, turns in magnetic force
Speed is stirred 3h under conditions of being 350r/min, and filter cake is obtained by filtration after stirring, 4 times and puts into baking oven wash with distilled water
It is dried under conditions of temperature is 110 DEG C and pre product is made.
The preparation of paper surface sizing agent: according to parts by weight, by 33 parts of polyvinyl alcohol, 10 parts of butyl acrylates and 7 parts
In above-mentioned pre product investment blender, 45min is mixed under conditions of temperature is 90 DEG C, revolving speed is 325r/min and is made
It is anti-to weigh 31 parts of blended products, 2 parts of trimethylmethoxysilanes and 0.7 part of potassium sulfate investment according to parts by weight for blended product
It answers in kettle, increases temperature in the kettle to 80 DEG C, 70min is mixed under conditions of revolving speed is 350r/min, discharge up to paper
Cypres.
The preparation of reaction mixture: it weighs in 800g bagasse investment reaction kettle, the sodium hydroxide for being 10% with mass fraction
Solution dipping, is filled with nitrogen into kettle, increases in kettle air pressure to 1.2MPa, and closed reactor simultaneously increases temperature in the kettle to 120 DEG C,
Constant temperature and pressure reacts 140h and reaction mixture is made.
The preparation of mixed serum: according to parts by weight, 32 parts of above-mentioned reaction mixtures, 2 parts of sodium chloride, 0.8 part of chlorine are weighed
Change in potassium and 7 parts of propanedione investment three-necked flasks, 40min is mixed with the revolving speed of 500r/min with blender, it will after stirring
Beaker is placed in sonic oscillation instrument, and mixed serum is made in oscillation 5h under conditions of frequency is 36kHz.
The preparation of grinding product: the citric acid solution that mass fraction is 7% is added dropwise in Xiang Shangshu three-necked flask, adjusts pH value
It is made to neutrality to fermentation liquid, by Soybean Leaves and soybean stem 2:1 in mass ratio investment beaker, successively uses dehydrated alcohol and quality
The liquor natrii hypochloritis that score is 14% impregnates 6min, postposition is impregnated in a vacuum drying oven, temperature is 50 DEG C, vacuum degree is
It is concentrated and dried 150min under conditions of 120Pa, is put into after dry in planetary ball mill and grinds obtained grinding product.
The preparation of mix products: by above-mentioned grinding product with putted into fermenter to fermentation liquid 1:5 in mass ratio mix
It is even, fermentor opening is placed in the greenhouse that temperature is 36 DEG C, constant temperature stands 8 days obtained tunnings, and tunning is thrown
Enter in reaction kettle, reactor temperature is increased to 90 DEG C, constant temperature stands 3h and mix products are made.
The preparation of pre product: being to dry in 115 DEG C of baking oven by above-mentioned mix products investment temperature, after drying with positive silicon
Sour tetra-ethyl ester 20:1 in mass ratio puts into be uniformly mixed in beaker and be made to reaction product, into beaker with the dropwise addition of 30mL/min
The ammonium hydroxide that it is 8% to the mass fraction of reaction product quality 10% that rate, which is added dropwise, is added magnetic force ball and sealed beaker, turns in magnetic force
Speed is stirred 3h under conditions of being 400r/min, and filter cake is obtained by filtration after stirring, 5 times and puts into baking oven wash with distilled water
It is dried under conditions of temperature is 115 DEG C and pre product is made.
The preparation of paper surface sizing agent: according to parts by weight, by 34 parts of polyvinyl alcohol, 11 parts of butyl acrylates and 8 parts
In above-mentioned pre product investment blender, 50min is mixed under conditions of temperature is 95 DEG C, revolving speed is 350r/min and is made
It is anti-to weigh 32 parts of blended products, 3 parts of trimethylmethoxysilanes and 0.8 part of potassium sulfate investment according to parts by weight for blended product
It answers in kettle, increases temperature in the kettle to 85 DEG C, 80min is mixed under conditions of revolving speed is 400r/min, discharge up to paper
Cypres.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that reaction mixture is not added.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that grinding product is not added.
Comparative example 3: the paper surface sizing agent of company, Suzhou City production.
Paper surface sizing agent in paper surface sizing agent produced by the present invention and comparative example is detected, detection knot
Fruit is as shown in table 1:
Stability test
Respectively by the paper surface sizing agent in paper surface sizing agent produced by the present invention and comparative example 5000rpm condition
Variation is observed after placing at room temperature 6 months after lower centrifugation 30min.
Ring crush intensity test is tested using the inspection of compressive strength tester, and ring crush index is the bigger the better.
Surface strength test is tested according to standard GB/T22365-2008.
Water resistance test under conditions of constant temperature and humidity (temperature is 22~24 DEG C, humidity is 49~51%) by sizing after
Paper determines the circular paper that radius is 6.25cm, and using according to standard GB/T1540-2002 can vigorous absorbability analyzer measurement
The Cobb value of paper, Cobb value are the smaller the better.
1 performance measurement result of table
From the data in table 1, it can be seen that paper surface sizing agent produced by the present invention has good stability, high mechanics can be brought strong to paper
The advantages such as degree, high smoothness and high folding strength, and the water resistance of paper is also enhanced, and is had broad prospects.
Claims (8)
1. a kind of preparation method of paper surface sizing agent, it is characterised in that specific preparation step are as follows:
Polyvinyl alcohol, butyl acrylate and pre product are put into blender, temperature be 85~95 DEG C, revolving speed be 300~
Under conditions of 350r/min be mixed 40~50min be made blended product, weigh blended product, trimethylmethoxysilane and
Potassium sulfate is put into reaction kettle, increases temperature in the kettle to 75~85 DEG C, mixing is stirred under conditions of revolving speed is 300~400r/min
60~80min is mixed, is discharged up to paper surface sizing agent；
The specific preparation step of the pre product are as follows:
(1) grinding product is uniformly mixed with putting into fermenter to fermentation liquid, by fermentor opening be placed in temperature be 30~
In 36 DEG C of greenhouse, constant temperature stands 6~8 days obtained tunnings, tunning is put into reaction kettle, by reactor temperature
80~90 DEG C are increased to, constant temperature stands 2~3h and mix products are made；
(2) it is dried in the baking oven for being 105~115 DEG C by mix products investment temperature, puts into and burn with tetraethyl orthosilicate after drying
It is uniformly mixed and is made to reaction product in cup, ammonium hydroxide is added dropwise with the drop rate of 25~30mL/min into beaker, magnetic force is added
Ball and sealed beaker are stirred 2~3h under conditions of magnetic force revolving speed is 300~400r/min, are obtained by filtration after stirring
Filter cake, wash with distilled water 3~5 times and put into baking oven temperature be 105~115 DEG C under conditions of drying prefabricated production is made
Object；
The specific preparation step of the grinding product are as follows:
(1) it weighs in 600~800g bagasse investment reaction kettle, is impregnated with the sodium hydroxide solution that mass fraction is 6~10%,
It is filled with nitrogen into kettle, increases in kettle air pressure to 1.0~1.2MPa, closed reactor and simultaneously increase temperature in the kettle to 110~120
DEG C, constant temperature and pressure reacts 120~140h and reaction mixture is made；
(2) weigh in reaction mixture, sodium chloride, potassium chloride and propanedione investment three-necked flask, with blender with 400~
30~40min is mixed in the revolving speed of 500r/min, is placed the beaker in sonic oscillation instrument after stirring, frequency be 32~
3~5h is vibrated under conditions of 36kHz, and mixed serum is made；
(3) citric acid solution that mass fraction is 5~7% is added dropwise into three-necked flask, adjusts pH value to neutrality and is made wait ferment
Liquid successively uses the liquor natrii hypochloritis that dehydrated alcohol and mass fraction are 10~14% in Soybean Leaves and soybean stem investment beaker
5~6min is impregnated, postposition is impregnated in a vacuum drying oven, in the condition that temperature is 40~50 DEG C, vacuum degree is 100~120Pa
120~150min of lower concentrate drying puts into planetary ball mill after dry and grinds obtained grinding product.
2. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: preferably by weight
Number meter, the polyvinyl alcohol is 32~34 parts, butyl acrylate is 8~11 parts, pre product is 6~8 parts.
3. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: preferably by weight
Number meter, the blended product is 30~32 parts, trimethylmethoxysilane is 2~3 parts, potassium sulfate is 0.6~0.8 part.
4. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: the tool of pre product
Grinding product described in preparation step (1) is 1:5 with the mass ratio to fermentation liquid.
5. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: the tool of pre product
The mass ratio of mix products described in preparation step (2) and tetraethyl orthosilicate is 20:1.
6. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: the tool of pre product
The quality for the ammonium hydroxide that the mass fraction being added dropwise described in preparation step (2) into beaker is 6~8% is to reaction product matter
The 6~10% of amount.
7. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: the tool of grinding product
In preparation step (2) it is preferred according to parts by weight, the reaction mixture is 30~32 parts, sodium chloride is 1~2 part,
Potassium chloride is 0.6~0.8 part, propanedione is 5~7 parts.
8. a kind of preparation method of paper surface sizing agent according to claim 1, it is characterised in that: the tool of grinding product
The mass ratio of Soybean Leaves described in preparation step (2) and soybean stem is 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126670.0A CN109898365A (en) | 2019-02-20 | 2019-02-20 | A kind of preparation method of paper surface sizing agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910126670.0A CN109898365A (en) | 2019-02-20 | 2019-02-20 | A kind of preparation method of paper surface sizing agent |
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| CN109898365A true CN109898365A (en) | 2019-06-18 |
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| CN201910126670.0A Withdrawn CN109898365A (en) | 2019-02-20 | 2019-02-20 | A kind of preparation method of paper surface sizing agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115384144A (en) * | 2022-09-24 | 2022-11-25 | 广东天跃新材料股份有限公司 | Special silicon rubber synthetic leather fabric for automotive interior and manufacturing process thereof |
-
2019
- 2019-02-20 CN CN201910126670.0A patent/CN109898365A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115384144A (en) * | 2022-09-24 | 2022-11-25 | 广东天跃新材料股份有限公司 | Special silicon rubber synthetic leather fabric for automotive interior and manufacturing process thereof |
| CN115384144B (en) * | 2022-09-24 | 2024-08-20 | 广东天跃新材料股份有限公司 | Special silicone rubber synthetic leather fabric for automotive interiors and manufacturing process thereof |
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Application publication date: 20190618 |