CN107916079A - A kind of modification pueraria starch powdery adhesive of antibacterial low toxicity - Google Patents
A kind of modification pueraria starch powdery adhesive of antibacterial low toxicity Download PDFInfo
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- CN107916079A CN107916079A CN201711229098.8A CN201711229098A CN107916079A CN 107916079 A CN107916079 A CN 107916079A CN 201711229098 A CN201711229098 A CN 201711229098A CN 107916079 A CN107916079 A CN 107916079A
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- pueraria starch
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/18—Oxidised starch
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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
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/04—Starch derivatives
- C09J103/10—Oxidised starch
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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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C08K2003/2286—Oxides; Hydroxides of metals of silver
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
A kind of modification pueraria starch powdery adhesive of antibacterial low toxicity, includes the component of following parts by weight:120 140 parts of pueraria starch, 6 10 parts of montmorillonite, 20 30 parts of casein, 22 24 parts of sodium acetate, 35 parts of hydrochloric acid, 79 parts of crosslinking agent, 13 parts of coupling agent, 79 parts of defoamer, 25 35 parts of compound preservative, 13 17 parts of antiseptic, 18 22 parts of urea, 17 25 parts of cetyl trimethylammonium bromide, 46 parts of potassium permanganate;The invention also discloses a kind of preparation method of the modification pueraria starch powdery adhesive of antibacterial low toxicity:The pueraria starch after oxidation, compound preservative and organic modification montmonrillonite are added into urea after mixing first, casein carries out heating and reacts to obtain mixture B, then dispersant, coupling agent and defoamer are added and obtains jelly C, finally it is spray-dried, centrifuged, obtains powdery pueraria starch adhesive.The present invention has the characteristics that high bonding strength, water-fast, antibacterial, environmentally friendly Storage period are long, effectively reduces the harm to environment, the production interests for reducing production cost, improving enterprise.
Description
Technical field
The invention belongs to adhesive technical field, and in particular to a kind of modification pueraria starch powdery gluing of antibacterial low toxicity
Agent.
Background technology
Adhesive is the blood of China's wood-based panel industry, and China is used as world's Wood-based Panel Production, consumption and foreign trade
The first big country, the annual adhesive for Wood-based Panel Production is calculated over 6,500,000 tons with solid part, and traditional glue kind is mainly
These three " aldehyde system " adhesive made of synthetic resin of urea-formaldehyde resin adhesive, cyanurotriamide modified urea resin and phenolic resin, it is this kind of
The certain cushion rubber burst size of adhesive generally existing, endangers the health of consumer.In order to reduce above-mentioned adhesive release first
The defects of aldehyde, adhesive is prepared using starch as primary raw material.Starch be by many glucose dismiss unit be connected with each other and
Into polysaccharide polymer, it is usually granular, it is not soluble in water, can expand or be swollen in cold water, be punctured into again after dry it is granular,
After starch adds water Heat Gelatinization, although having adhesion, even if concentration or solid content are very low, its viscosity also can be very high, causes
Poor fluidity, easy gel, phenomena such as being not easy to be glued.But after the oxidation of oxidized dose of starch molecule, then with water solubility synthesize macromolecule
Natural polymer is compound or chemical graft after the modified starch that is formed usually there is good performance.
The content of the invention
The purpose of the invention is to provide a kind of modification pueraria starch powdery adhesive of antibacterial low toxicity.
In order to realize that the technical solution that above-mentioned technical purpose uses is:A kind of modification pueraria starch powdered adhesive of antibacterial low toxicity
Glutinous agent, includes the component of following parts by weight:120-140 parts of pueraria starch, 6-10 parts of montmorillonite, 20-30 parts of casein, sodium acetate
22-24 parts, 3-5 parts of hydrochloric acid, 7-9 parts of crosslinking agent, 1-3 parts of coupling agent, 7-9 parts of defoamer, 25-35 parts of compound preservative, antibacterial
13-17 parts of agent, 18-22 parts of urea, 17-25 parts of cetyl trimethylammonium bromide, 4-6 parts of potassium permanganate.
Further optimization, the crosslinking agent is zinc oxide.
Further optimization, the coupling agent is silane coupling agent, titanate coupling agent, aluminate coupling agent, complex compound are even
Join one kind in agent.
Further optimization, the defoamer is tributyl phosphate.
Further optimization, the compound preservative are the molten alkylamine copper of ammonia and copper naphthenate, its mass percent is 3:1-
5:1。
Further optimization, the antiseptic is nano phase ag_2 o.
A kind of preparation method of the modification pueraria starch powdery adhesive of antibacterial low toxicity, comprises the following steps that:
Step 1: stirring montmorillonite addition deionized water high speed to suspension, it is warming up to slow while stirring at 70-80 DEG C
Cetyl trimethylammonium bromide is added, continues the constant temperature at 70-80 DEG C and stands 5-6h filterings, filter cake is washed with deionized,
Dry organo montmorillonite, it is spare;
Step 2: mixing sodium acetate is uniformly mixed in deionized water after pueraria starch is disperseed in dispersant, 50-60 is heated
Add potassium permanganate the reaction was continued 1-2h after DEG C reaction 1-2h, then plus hydrochloric acid to adjust to pH value be 1.0-3.0, by separating,
Pueraria starch must be aoxidized after washing, drying, it is spare;
Step 3: oxidation pueraria starch, compound preservative and organic modification montmonrillonite are mixed, ultrasonic disperse, divides at room temperature
It is 1-2h to dissipate the time, obtains mixture A, spare;
It is uniformly mixed Step 4: being added to after urea and casein are mixed in mixture A, is filled with nitrogen, heating reaction, reaction temperature
Spend for 120-130 DEG C, reaction time 0.5-1h, after cooling mixture B, it is spare;
Dispersant, coupling agent and defoamer are added when being warming up to 72-74 DEG C Step 5: mixture B is inserted in reaction kettle, uses salt
Acid adjusts pH value to 7.5-8.5, is continuously heating to 120-130 DEG C, reacts 5-15min, obtains jelly C, spare;
It is spray-dried Step 6: jelly C is inserted in spray dryer, by centrifuging after drying, obtains powdery Pueraria lobota
Root starch adhesive.
Further optimize, the Washing of Filter Cake in the step 1 is repeatedly washing in batches.
Further optimize, the inlet air temperature of spray dryer is 180-200 DEG C in the step 6, leaving air temp 90-
100℃。
Further optimize, centrifuged in the step 6 using cyclone separator.
The beneficial effects of the invention are as follows:
First, starch is used as primary raw material, and starch is easily bought and commercially available price is relatively low and pollution-free, belongs to renewable resource;
2nd, pueraria lobata system pulse family liana, to adaptable, drought-resistant, impoverishment tolerant, the saline-alkali tolerant of weather, soil, the speed of growth
It hurry up, the pueraria starch gluing degree after oxidation is strong;Pueraria starch source is wide, cheap.When pueraria starch is aoxidized, in its structure
C in part glucose unit6On hydroxyl be converted into aldehyde radical, and aldehyde radical with the hydroxyl in adhesive in curing agent and heating condition
Lower formation hemiacetal and acetal.So as to form the crosslinked structure participated in oxidized starch chain when curing, effectively prevent
Chemosmotic progress, improves the performance of adhesive, is effectively increased bonding action, water resistance and the stabilization of adhesive
Property;
3rd, casein is a kind of fully biodegradable and reproducible globular protein, wherein 55% amino acid contain carboxyl,
Amino and hydroxyl isopolarity group, it has preferable bonding force, resistance to flatiron, high temperature resistant, especially with good filming performance
And toughness, layer protecting film can be formed when preparing adhesive, improves the high-temperature stability and ageing resistance of adhesive, is improved
Water resistance;
4th, be spray-dried powder processed, obtained powdery adhesive storage period is long, it is not aqueous, be not afraid of jelly, will not it is mouldy,
Packaging, convenient transportation, add a certain amount of water to stir evenly, and avoid because bringing deformation with liquid glue, tilting, open
The problems such as splitting, can be widely popularized the application of powdery year full Resin adhesive;
In conclusion the present invention has the characteristics that bonding strength is high, water-fast, Storage period is long, primary raw material uses pueraria starch, nothing
Formaldehyde adds, and montmorillonite coordinates a variety of effective auxiliary agents, effectively reduce to environment as filler, nano phase ag_2 o as antiseptic
Harm, reduce production cost, improve enterprise production interests.
Embodiment
The purpose of the present invention is described in order to as far as possible clear, specific implementation content is as follows:
Embodiment 1
A kind of modification pueraria starch powdery adhesive of antibacterial low toxicity, includes the component of following parts by weight:Pueraria starch 120
Part, 6 parts of montmorillonite, 20 parts of casein, 22 parts of sodium acetate, 3 parts of hydrochloric acid, 7 parts of zinc oxide, 1 part of silane coupling agent, tributyl phosphate 7
Part, 25 parts of compound preservative, 13 parts of nano phase ag_2 o, 18 parts of urea, 17 parts of cetyl trimethylammonium bromide, potassium permanganate 4
Part.
Further optimization, the compound preservative are the molten alkylamine copper of ammonia and copper naphthenate, its mass percent is 3:1.
A kind of preparation method of the modification pueraria starch powdery adhesive of antibacterial low toxicity, comprises the following steps that:
Step 1: stirring montmorillonite addition deionized water high speed to suspension, slowly add while stirring when being warming up to 70 DEG C
Enter cetyl trimethylammonium bromide, continue the constant temperature at 70 DEG C and stand 5h filterings, filter cake is repeatedly washed in batches with deionized water,
Dry organo montmorillonite, it is spare;
Step 2: mixing sodium acetate is uniformly mixed in deionized water after pueraria starch is disperseed in methyl alcohol, 50 DEG C are heated instead
Answer and add potassium permanganate after 1h the reaction was continued 1h, then plus hydrochloric acid to adjust to pH value be 1.0, by separating, wash, it is dry after
Pueraria starch is aoxidized, it is spare;
Step 3: oxidation pueraria starch, compound preservative and organic modification montmonrillonite are mixed, ultrasonic disperse, divides at room temperature
It is 1h to dissipate the time, obtains mixture A, spare;
It is uniformly mixed Step 4: being added to after urea and casein are mixed in mixture A, is filled with nitrogen, heating reaction, reaction temperature
Spend for 120 DEG C, reaction time 0.5h, after cooling mixture B, it is spare;
Zinc oxide, silane coupling agent and tricresyl phosphate fourth are added when being warming up to 72 DEG C Step 5: mixture B is inserted in reaction kettle
Ester, adjusts pH value to 7.5 with hydrochloric acid, is continuously heating to 120 DEG C, reacts 5min, obtains jelly C, spare;
It is spray-dried Step 6: jelly C is inserted in spray dryer, the inlet air temperature of spray dryer is 180 DEG C,
Leaving air temp is 90-100 DEG C, is centrifuged after dry by cyclone separator, obtains powdery pueraria starch adhesive.
Embodiment 2
A kind of modification pueraria starch powdery adhesive of antibacterial low toxicity, includes the component of following parts by weight:Pueraria starch 130
Part, 8 parts of montmorillonite, 25 parts of casein, 23 parts of sodium acetate, 4 parts of hydrochloric acid, 8 parts of zinc oxide, 2 parts of titanate coupling agent, tributyl phosphate
8 parts, 30 parts of compound preservative, 15 parts of nano phase ag_2 o, 20 parts of urea, 21 parts of cetyl trimethylammonium bromide, potassium permanganate 5
Part.
Further optimization, the compound preservative are the molten alkylamine copper of ammonia and copper naphthenate, its mass percent is 4:1.
A kind of preparation method of the modification pueraria starch powdery adhesive of antibacterial low toxicity, comprises the following steps that:
Step 1: stirring montmorillonite addition deionized water high speed to suspension, slowly add while stirring when being warming up to 75 DEG C
Enter cetyl trimethylammonium bromide, continue the constant temperature at 75 DEG C and stand 5.5h filterings, repeatedly washing is filtered in batches with deionized water
Cake, dry organo montmorillonite are spare;
Step 2: mixing sodium acetate is uniformly mixed in deionized water after pueraria starch is disperseed in methyl alcohol, 55 DEG C are heated instead
Answer and add potassium permanganate after 1.5h the reaction was continued 1.5h, then plus hydrochloric acid to adjust to pH value be 2.0, by separating, washing, dry
After must aoxidize pueraria starch, it is spare;
Step 3: oxidation pueraria starch, compound preservative and organic modification montmonrillonite are mixed, ultrasonic disperse, divides at room temperature
It is 1.5h to dissipate the time, obtains mixture A, spare;
It is uniformly mixed Step 4: being added to after urea and casein are mixed in mixture A, is filled with nitrogen, heating reaction, reaction temperature
Spend for 125 DEG C, reaction time 0.75h, after cooling mixture B, it is spare;
Zinc oxide, titanate coupling agent and tricresyl phosphate fourth are added when being warming up to 73 DEG C Step 5: mixture B is inserted in reaction kettle
Ester, adjusts pH value to 8.0 with hydrochloric acid, is continuously heating to 125 DEG C, reacts 10min, obtains jelly C, spare;
It is spray-dried Step 6: jelly C is inserted in spray dryer, the inlet air temperature of spray dryer is 190 DEG C,
Leaving air temp is 95 DEG C, is centrifuged after dry by cyclone separator, obtains powdery pueraria starch adhesive.
Embodiment 3
A kind of modification pueraria starch powdery adhesive of antibacterial low toxicity, includes the component of following parts by weight:Pueraria starch 140
Part, 10 parts of montmorillonite, 30 parts of casein, 24 parts of sodium acetate, 5 parts of hydrochloric acid, 9 parts of zinc oxide, 3 parts of compound coupling agent of complexing, tricresyl phosphate fourth
9 parts of ester, 35 parts of compound preservative, 17 parts of nano phase ag_2 o, 22 parts of urea, 25 parts of cetyl trimethylammonium bromide, permanganic acid
6 parts of potassium.
Further optimization, the compound preservative are the molten alkylamine copper of ammonia and copper naphthenate, its mass percent is 5:1.
A kind of preparation method of the modification pueraria starch powdery adhesive of antibacterial low toxicity, comprises the following steps that:
Step 1: stirring montmorillonite addition deionized water high speed to suspension, slowly add while stirring when being warming up to 80 DEG C
Enter cetyl trimethylammonium bromide, continue the constant temperature at 80 DEG C and stand 6h filterings, filter cake is repeatedly washed in batches with deionized water,
Dry organo montmorillonite, it is spare;
Step 2: mixing sodium acetate is uniformly mixed in deionized water after pueraria starch is disperseed in dispersant, 60 DEG C are heated
Add potassium permanganate the reaction was continued 2h after reacting 2h, then plus hydrochloric acid to adjust to pH value be 3.0, by separating, wash, it is dry after
Pueraria starch must be aoxidized, it is spare;
Step 3: oxidation pueraria starch, compound preservative and organic modification montmonrillonite are mixed, ultrasonic disperse, divides at room temperature
It is 2h to dissipate the time, obtains mixture A, spare;
It is uniformly mixed Step 4: being added to after urea and casein are mixed in mixture A, is filled with nitrogen, heating reaction, reaction temperature
Spend for 130 DEG C, reaction time 1h, after cooling mixture B, it is spare;
Zinc oxide, complexing compound coupling agent and tricresyl phosphate fourth are added when being warming up to 74 DEG C Step 5: mixture B is inserted in reaction kettle
Ester, adjusts pH value to 8.5 with hydrochloric acid, is continuously heating to 130 DEG C, reacts 15min, obtains jelly C, spare;
It is spray-dried Step 6: jelly C is inserted in spray dryer, the inlet air temperature of spray dryer is 200 DEG C,
Leaving air temp is 100 DEG C, is centrifuged after dry by cyclone separator, obtains powdery pueraria starch adhesive.
Main feature, application method, basic principle and the advantages of the present invention of the present invention has been shown and described above.This
Industry technology personnel it should be appreciated that the present invention is not limited to the above embodiments, described in above-described embodiment and invention book only
It is the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various according to actual conditions
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (10)
1. the modification pueraria starch powdery adhesive of a kind of antibacterial low toxicity, it is characterised in that include the component of following parts by weight:
120-140 parts of pueraria starch, 6-10 parts of montmorillonite, 20-30 parts of casein, 22-24 parts of sodium acetate, 3-5 parts of hydrochloric acid, crosslinking agent 7-9
Part, 1-3 parts of coupling agent, 7-9 parts of defoamer, 25-35 parts of compound preservative, 13-17 parts of antiseptic, 18-22 parts of urea, hexadecane
17-25 parts of base trimethylammonium bromide, 4-6 parts of potassium permanganate.
A kind of 2. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 1, it is characterised in that the crosslinking
Agent is zinc oxide.
A kind of 3. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 1, it is characterised in that the coupling
Agent is one kind in silane coupling agent, titanate coupling agent, aluminate coupling agent, complexing compound coupling agent.
A kind of 4. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 1, it is characterised in that the defoaming
Agent is tributyl phosphate.
5. the modification pueraria starch powdery adhesive of a kind of antibacterial low toxicity as claimed in claim 1, it is characterised in that described compound
Preservative is the molten alkylamine copper of ammonia and copper naphthenate, its mass percent is 3:1-5:1.
A kind of 6. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 1, it is characterised in that the antibacterial
Agent is nano phase ag_2 o.
7. a kind of preparation method of the modification pueraria starch powdery adhesive of antibacterial low toxicity, its feature exist as described in claim 1
In comprising the following steps that:
Step 1: stirring montmorillonite addition deionized water high speed to suspension, it is warming up to slow while stirring at 70-80 DEG C
Cetyl trimethylammonium bromide is added, continues the constant temperature at 70-80 DEG C and stands 5-6h filterings, filter cake is washed with deionized,
Dry organo montmorillonite, it is spare;
Step 2: mixing sodium acetate is uniformly mixed in deionized water after pueraria starch is disperseed in dispersant, 50-60 is heated
Add potassium permanganate the reaction was continued 1-2h after DEG C reaction 1-2h, then plus hydrochloric acid to adjust to pH value be 1.0-3.0, by separating,
Pueraria starch must be aoxidized after washing, drying, it is spare;
Step 3: oxidation pueraria starch, compound preservative and organic modification montmonrillonite are mixed, ultrasonic disperse, divides at room temperature
It is 1-2h to dissipate the time, obtains mixture A, spare;
It is uniformly mixed Step 4: being added to after urea and casein are mixed in mixture A, is filled with nitrogen, heating reaction, reaction temperature
Spend for 120-130 DEG C, reaction time 0.5-1h, after cooling mixture B, it is spare;
Crosslinking agent, coupling agent and defoamer are added when being warming up to 72-74 DEG C Step 5: mixture B is inserted in reaction kettle, uses salt
Acid adjusts pH value to 7.5-8.5, is continuously heating to 120-130 DEG C, reacts 5-15min, obtains jelly C, spare;
It is spray-dried Step 6: jelly C is inserted in spray dryer, by centrifuging after drying, obtains powdery Pueraria lobota
Root starch adhesive.
A kind of 8. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 7, it is characterised in that the step
Washing of Filter Cake in one is repeatedly washing in batches.
A kind of 9. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 7, it is characterised in that the step
The inlet air temperature of spray dryer is 180-200 DEG C in six, and leaving air temp is 90-100 DEG C.
A kind of 10. modification pueraria starch powdery adhesive of antibacterial low toxicity as claimed in claim 7, it is characterised in that the step
Centrifuged in rapid six using cyclone separator.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108864980A (en) * | 2018-08-06 | 2018-11-23 | 合肥龙发包装有限公司 | A kind of corrugated paper adhesive enhancing additive |
CN111087479A (en) * | 2019-12-31 | 2020-05-01 | 四川健腾生物技术有限公司 | Method for extracting radix puerariae oxidized starch and radix puerariae polypeptide from radix puerariae crude starch |
-
2017
- 2017-11-29 CN CN201711229098.8A patent/CN107916079A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108864980A (en) * | 2018-08-06 | 2018-11-23 | 合肥龙发包装有限公司 | A kind of corrugated paper adhesive enhancing additive |
CN111087479A (en) * | 2019-12-31 | 2020-05-01 | 四川健腾生物技术有限公司 | Method for extracting radix puerariae oxidized starch and radix puerariae polypeptide from radix puerariae crude starch |
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Application publication date: 20180417 |