CN108530829A - A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin - Google Patents
A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin Download PDFInfo
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- CN108530829A CN108530829A CN201810400379.3A CN201810400379A CN108530829A CN 108530829 A CN108530829 A CN 108530829A CN 201810400379 A CN201810400379 A CN 201810400379A CN 108530829 A CN108530829 A CN 108530829A
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- China
- Prior art keywords
- cornstarch
- soybean protein
- protein isolate
- added
- formaldehyde resin
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/021—Pots formed in one piece; Materials used therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/22—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08L61/24—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
-
- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a kind of methods making straw flowerpot with cornstarch soybean protein isolate modified urea-formaldehyde resin, it is characterized in that, into cornstarch plus distilled water stirs, and sulphur acid for adjusting pH is added dropwise in a water bath, adds oxalic acid, oxidizing agent solution, aoxidize to obtain milky oxidized starch breast, bath temperature is increased, sodium hydroxide, stirring gelatinization is added dropwise, pH is adjusted, borax cross-linking reaction is added；Lauxite is added into gained corn starch adhesive, then is mixed with soybean protein isolate, heating stirring, obtains modified urea-formaldehyde resin in a water bath；Into gained modified resin plus ammonium chloride stirs evenly, it is mixed well in homogenizer with reinforcing material rice husk, powdered rice hulls, controls moisture content, molding materials are injected in mold, hydraulic press pressure, hot pressing temperature, clamp time, hot-forming obtained straw flowerpot are set.
Description
Technical field
The present invention relates to resin arts, and in particular to a kind of to use cornstarch-soybean protein isolate modified urea-formaldehyde resin system
Make the method for straw flowerpot.
Background technology
Composite material is prepared with the performances such as light inexpensive, easy processing, biodegradable, extensively using plant fiber filling
Applied to fields such as industrial or agricultural and there is faster development trend.It, can since natural fiber has higher specific strength, specific modulus
Natural degradation, natural plant fibre composite material has become one of the hot spot studied in field of compound material, with agricultural crop straw
For raw material, the research for preparing environmentally friendly material is imperative.
Along with flourishing for global industry, international community is in a non-renewable energy resources and constantly exhausts, raw
In the state system increasingly disorderly stage, the direction of reproducible utilization towards the increasingly extensiveness and intensiveness of biomass resource is developed.Agriculture
The resource that crop material is big as a kind of yield on the earth and material property is stablized, will bring immeasurable warp to the mankind
Ji, society and ecological environment benefit, are of great significance to the sustainable development of agricultural, ecology, environment.This project is for current
The country a large amount of societies, economy and ecological environment problem caused by crop straw burning, grind to make internal disorder or usurp and meet ecology using waste straw making
The stalk products such as Flower pot, the tableware of environmental requirement efficiently use stalk resource, while meeting people and compeling to green living
It is essential and wants.
Invention content
Cornstarch-soybean protein isolate modified urea-formaldehyde resin is used the invention mainly solves the technical problem of providing a kind of
The method for making straw flowerpot, the straw flowerpot ecological, environmental protective, degradable prepared according to the technique.
A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin, which is characterized in that
It carries out according to the following steps：
（1）The synthesis of corn starch adhesive：
Into 8-12 parts of cornstarch 1:10 are added distilled water, start stirring, and sulphur acid for adjusting pH is added dropwise in 50-53 DEG C of water-bath and is
0.16-0.24 parts of oxalic acid are added in 1-2, oxidizing agent solution are added dropwise, oxidation reaction 2-3h obtains milky oxidized starch breast, by water-bath
Temperature rises to 70-72 DEG C, sodium hydroxide is added dropwise, stirring gelatinization 9-11min, tune pH are 9.5-10.5, and 0.08-0.12 parts of boron are added
Sand cross-linking reaction 1-2h, discharging；
（2）The modification of Lauxite：
To（1）Be added in middle gained corn starch adhesive and account for the Lauxite of its quality 1/4, then with account for Lauxite quality 1/
5 soybean protein isolate mixing, the heating stirring 25-30min in 68-72 DEG C of water-bath obtain modified urea-formaldehyde resin；
（3）The making of straw flowerpot：
To 25-30 parts（2）In middle gained modified resin plus 0.25-0.3 parts of ammonium chlorides stir evenly, with 50-60 parts of reinforcing materials in height
Mixed well in fast blender, control moisture content be 12-14%, by molding materials inject mold in, hydraulic press pressure 25MPa,
It is hot-forming under conditions of 118-122 DEG C of hot pressing temperature, total clamp time 30-40s, straw flowerpot is made.
Wherein, step（1）Middle sulfuric acid concentration is 2mol/L；By 0.08-0.12 parts of potassium permanganate 1:100 are dissolved in the water i.e.
Obtain oxidizing agent solution；Naoh concentration is 30%.
Step（3）Middle reinforcing material is rice husk, powdered rice hulls 3:7 mixing.
The reaction mechanism of the present invention is as follows：
It is crosslinking agent by raw material, borax of cornstarch, the two, which is first reacted, generates half cross-linked state binder, closing, package
The alcoholic extract hydroxyl group of partial starch reduces water solubility, then compound with Lauxite, soybean protein isolate, and pyroreaction, which generates, to be stablized
Heat curing type reticular structure resin；Using corn starch adhesive, soybean protein isolate be modified Lauxite as matrix resin,
Using rice husk, powdered rice hulls as reinforcing material, through mixing, hot pressing, compression molding process, a kind of environmental protection type flowerpot is prepared, is significantly reduced
Content of formaldehyde；Modified urea-formaldehyde resin and powdered rice hulls are conducive to improve the mechanical property of straw flowerpot, and water resistance is high, straw flowerpot
Comprehensive performance is preferable, and product market capacity is big, environmental benefit, high financial profit, with environment and the economic good hair mutually coordinated
Exhibition foreground.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment
A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin, which is characterized in that
It carries out according to the following steps：
（1）The synthesis of corn starch adhesive：
Into 8kg cornstarch 1:10 are added distilled water, start stirring, and it is 1- that sulphur acid for adjusting pH is added dropwise in 50-53 DEG C of water-bath
2,0.16kg oxalic acid is added, oxidizing agent solution is added dropwise, oxidation reaction 3h obtains milky oxidized starch breast, bath temperature is risen to
70-72 DEG C, sodium hydroxide is added dropwise, stirring gelatinization 9-11min, tune pH are 9.5-10.5, and 0.08kg borax cross-linking reaction 2h are added,
Discharging；
（2）The modification of Lauxite：
To（1）Be added in middle gained corn starch adhesive and account for the Lauxite of its quality 1/4, then with account for Lauxite quality 1/
5 soybean protein isolate mixing, the heating stirring 30min in 68-72 DEG C of water-bath obtain modified urea-formaldehyde resin；
（3）The making of straw flowerpot：
To 25kg（2）In middle gained modified resin plus 0.25kg ammonium chlorides stir evenly, with 50kg reinforcing materials in homogenizer
It mixes well, control moisture content is 12-14%, and molding materials are injected in mold, is 25MPa, hot pressing temperature in hydraulic press pressure
For 118-122 DEG C, total clamp time be 40s under conditions of it is hot-forming, be made straw flowerpot.
Wherein, step（1）Middle sulfuric acid concentration is 2mol/L；By 0.08kg potassium permanganate 1:100 are dissolved in the water up to oxygen
Agent solution；Naoh concentration is 30%.
Step（3）Middle reinforcing material is rice husk, powdered rice hulls 3:7 mixing.
Claims (4)
1. a kind of method making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin, which is characterized in that
In cornstarch plus distilled water stirs, and sulphur acid for adjusting pH is added dropwise in a water bath, adds oxalic acid, oxidizing agent solution, aoxidizes to obtain milky
Oxidized starch breast, increases bath temperature, and sodium hydroxide is added dropwise, and stirring gelatinization adjusts pH, borax cross-linking reaction is added；To gained jade
Lauxite is added in rice starch adhesive, then is mixed with soybean protein isolate, heating stirring, obtains modified urea-formaldehyde in a water bath
Resin；Into gained modified resin plus ammonium chloride stirs evenly, fully mixed in homogenizer with reinforcing material rice husk, powdered rice hulls
It is even, moisture content is controlled, molding materials are injected in mold, setting hydraulic press pressure, hot pressing temperature, clamp time are hot-forming
Straw flowerpot is made.
2. a kind of cornstarch-soybean protein isolate modified urea-formaldehyde resin making straw flowerpot according to claim 1
Method, which is characterized in that carry out according to the following steps：
（1）The synthesis of corn starch adhesive：
Into 8-12 parts of cornstarch 1:10 are added distilled water, start stirring, and sulphur acid for adjusting pH is added dropwise in 50-53 DEG C of water-bath and is
0.16-0.24 parts of oxalic acid are added in 1-2, oxidizing agent solution are added dropwise, oxidation reaction 2-3h obtains milky oxidized starch breast, by water-bath
Temperature rises to 70-72 DEG C, sodium hydroxide is added dropwise, stirring gelatinization 9-11min, tune pH are 9.5-10.5, and 0.08-0.12 parts of boron are added
Sand cross-linking reaction 1-2h, discharging；
（2）The modification of Lauxite：
To（1）Be added in middle gained corn starch adhesive and account for the Lauxite of its quality 1/4, then with account for Lauxite quality 1/
5 soybean protein isolate mixing, the heating stirring 25-30min in 68-72 DEG C of water-bath obtain modified urea-formaldehyde resin；
（3）The making of straw flowerpot：
To 25-30 parts（2）In middle gained modified resin plus 0.25-0.3 parts of ammonium chlorides stir evenly, with 50-60 parts of reinforcing materials in height
Mixed well in fast blender, control moisture content be 12-14%, by molding materials inject mold in, hydraulic press pressure 25MPa,
It is hot-forming under conditions of 118-122 DEG C of hot pressing temperature, total clamp time 30-40s, straw flowerpot is made.
3. a kind of cornstarch-soybean protein isolate modified urea-formaldehyde resin making straw flowerpot according to claim 2
Method, which is characterized in that step（1）Middle sulfuric acid concentration is 2mol/L；By 0.08-0.12 parts of potassium permanganate 1:100 are dissolved in
Up to oxidizing agent solution in water；Naoh concentration is 30%.
4. a kind of cornstarch-soybean protein isolate modified urea-formaldehyde resin making straw flowerpot according to claim 2
Method, which is characterized in that step（3）Middle reinforcing material is rice husk, powdered rice hulls 3:7 mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400379.3A CN108530829A (en) | 2018-04-28 | 2018-04-28 | A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400379.3A CN108530829A (en) | 2018-04-28 | 2018-04-28 | A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin |
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| Publication Number | Publication Date |
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| CN108530829A true CN108530829A (en) | 2018-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810400379.3A Withdrawn CN108530829A (en) | 2018-04-28 | 2018-04-28 | A method of making straw flowerpot with cornstarch-soybean protein isolate modified urea-formaldehyde resin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109452103A (en) * | 2018-12-26 | 2019-03-12 | 甘肃玉兴通生物科技有限公司 | A kind of asparagus nursery synergy method for planting |
| CN110432028A (en) * | 2019-08-17 | 2019-11-12 | 黄启柳 | It is organic to release flowerpot production technology certainly |
| CN111484590A (en) * | 2020-04-17 | 2020-08-04 | 江苏省农业科学院 | Preparation method and application of feather keratin modified urea-formaldehyde resin |
-
2018
- 2018-04-28 CN CN201810400379.3A patent/CN108530829A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109452103A (en) * | 2018-12-26 | 2019-03-12 | 甘肃玉兴通生物科技有限公司 | A kind of asparagus nursery synergy method for planting |
| CN110432028A (en) * | 2019-08-17 | 2019-11-12 | 黄启柳 | It is organic to release flowerpot production technology certainly |
| CN111484590A (en) * | 2020-04-17 | 2020-08-04 | 江苏省农业科学院 | Preparation method and application of feather keratin modified urea-formaldehyde resin |
| CN111484590B (en) * | 2020-04-17 | 2022-03-08 | 江苏省农业科学院 | Preparation method and application of feather keratin modified urea-formaldehyde resin |
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Application publication date: 20180914 |
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