CN106957504A - A kind of preparation method of fry starch of konjak coated fertilizer - Google Patents
A kind of preparation method of fry starch of konjak coated fertilizer Download PDFInfo
- Publication number
- CN106957504A CN106957504A CN201710226337.8A CN201710226337A CN106957504A CN 106957504 A CN106957504 A CN 106957504A CN 201710226337 A CN201710226337 A CN 201710226337A CN 106957504 A CN106957504 A CN 106957504A
- Authority
- CN
- China
- Prior art keywords
- konjak
- film
- fertilizer
- fry starch
- starch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 82
- 229920002472 Starch Polymers 0.000 title claims abstract description 64
- 235000019698 starch Nutrition 0.000 title claims abstract description 64
- 239000008107 starch Substances 0.000 title claims abstract description 64
- 229920002752 Konjac Polymers 0.000 title claims abstract description 56
- 235000010485 konjac Nutrition 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 41
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 18
- 235000011187 glycerol Nutrition 0.000 claims abstract description 13
- 238000011049 filling Methods 0.000 claims abstract description 12
- 238000007766 curtain coating Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000004698 Polyethylene Substances 0.000 claims abstract description 6
- -1 polyethylene Polymers 0.000 claims abstract description 6
- 229920000573 polyethylene Polymers 0.000 claims abstract description 6
- 238000007605 air drying Methods 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 4
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 4
- 239000001099 ammonium carbonate Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 57
- 239000012528 membrane Substances 0.000 description 16
- 230000015556 catabolic process Effects 0.000 description 10
- 239000000523 sample Substances 0.000 description 10
- 238000013268 sustained release Methods 0.000 description 10
- 239000012730 sustained-release form Substances 0.000 description 10
- 238000006731 degradation reaction Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 description 5
- 229920002581 Glucomannan Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229940046240 glucomannan Drugs 0.000 description 5
- 239000002689 soil Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 4
- 238000005213 imbibition Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to fertilizer preparing technical field.A kind of preparation method of fry starch of konjak coated fertilizer, it is characterized in that comprising the following steps：1) according to fry starch of konjak：Polyvinyl alcohol：Water：Proportioning=3 of glycerine~12g:15g：300g:9g chooses raw material；2) polyvinyl alcohol of selection, water, glycerine pour into kneader；3) fry starch of konjak is added, and obtains mixture；4) the Screw Extrusion step 3 of kneader) obtained mixture, polyethylene pallet holds, and curtain coating allows the evenly laid out pallet of solution immediately；5) by step 4) mixture formation film of the pallet equipped with mixture in 50~80 DEG C of forced air dryings 2~3 hours, pallet；6) film is taken off, that is, obtains the film that thickness is 0.12~0.2 millimeter；7) film is cut, and coat fertilizer pocket is made in edge sealing；8) carry out fertilizer it is filling after, sealing, produce the fry starch of konjak coated fertilizer of needs.This method can solve the problem of fry starch of konjak deep process technology shortage, and batch production technology is provided for the production of fry starch of konjak coated fertilizer.
Description
Technical field
The invention belongs to fertilizer preparing technical field, and in particular to a kind of preparation method of fry starch of konjak coated fertilizer.
Background technology
Slow release fertilizer can adjust the rate of release of fertilizer nutrient according to crop growth demand, to improve fertilizer
Utilization rate, reduces fertilizer loss, environmental pollution and the destruction of aquatic ecosystem.China's fertilizer consumption is every more than 5.1 hundred million tons
Year, but the utilization rate only 35% of fertilizer.Utilization rate of fertilizer is low to not only result in the wasting of resources, at the same can bring soil, Ecology,
The problem of air or even food chain too many levels are irreversible.The low important factor in order of utilization rate of fertilizer is the shortage of water resource,
China's dry cropland accounts for the 56.8% of total area under cultivation, about 7.39 hundred million hm2Need to pour, therefore, the exploitation of moisture-retention sustained release fertilizer
With using being to promote fertilizer to subtract the important technology approach applied, basic contribution will be made to completing national " two subtract " strategic objective.
Therefore, subtracting for fertilizer applies research with slow release fertilizer in industry and association areas such as China's agricultural, Production of manure industry
Receive much concern, the experience development of more than 40 years, the slow release fertilizer that China develops has obtained plentiful and substantial progress, slow release fertilizer is improved
The utilization rate of fertilizer, while the degradation rate of membrane material brings new environment puzzlement.
Fry starch of konjak is the leftover bits and pieces in konjaku process, accounts for the 60% of fine powder yield.It is limited to that smell is pungent, mouth
Induct the features such as puckery, nutrition composition content is low, additional processing cost is high, fry starch of konjak is few in food and industrial circle application, often
Inexpensively handled as feed and compost.China is the plantation state and fine powder producing country of konjaku maximum in the world, as konjaku is processed
The fast-developing growth of industry, the pending amount of fry starch of konjak increases severely, and compost has resulted in severe contamination to ecological environment, suitable
Deep process technology exploitation is extremely urgent.Fry starch of konjak includes starch, Glucomannan and crude fibre etc., is valuable macromolecule money
Source, wherein starch, Glucomannan have film forming and water imbibition simultaneously, are the natural polymers for preparing membrane material and absorbent material
Sub- material；Glucomannan especially therein plays the role of to suppress starch retrogradation, and film is being blended by key component of polyvinyl alcohol
In technique, the participation of Glucomannan is preferable must to improve the comixing compatibility of starch and polyvinyl alcohol, the slow release of film, mechanicalness
Can more uniform stabilization.
The content of the invention
It is an object of the invention to provide a kind of preparation method of fry starch of konjak coated fertilizer, this method can solve konjaku and fly
Powder deep process technology lack problem, for fry starch of konjak coated fertilizer production batch production technology is provided, film uniformity is good, toughness with
Intensity is big.
To achieve the above object, the technical solution used in the present invention is：A kind of preparation side of fry starch of konjak coated fertilizer
Method, it is characterized in that comprising the following steps：
1) according to fry starch of konjak：Polyvinyl alcohol：Water：Proportioning=3 of glycerine~12g:15g：300g:9g chooses raw material；
2) step 1) polyvinyl alcohol chosen, water, glycerine pours into kneader, and design temperature is 95 DEG C, mixing speed 60r/
Min, opens heating, stirring, and the time is 3 hours, obtains mixture A；
3) step 1) choose fry starch of konjak add step 2) mixture A in, continue stir 0.5 hour, mixed
Thing B；
4) the Screw Extrusion step 3 of kneader) obtained mixture B, polyethylene pallet holds, and curtain coating makes solution equal immediately
Even tiling pallet；
5) by step 4) mixture shape of the pallet equipped with mixture in 50~80 DEG C of forced air dryings 2~3 hours, pallet
Film forming；
6) by step 5) pallet and film take off film after cooling down at room temperature, that is, obtain film that thickness is 0.12~0.2 millimeter (or
Fly powder and polyvinyl alcohol blending film)；
7) to step 6) obtained film is cut to the size that needs, and using sealing machine edge sealing, coat fertilizer pocket is made；
8) to step 7) prepare after coating bag carry out fertilizer (or addition water-loss reducer etc.) it is filling after, then using sealing machine
Sealing, produces the fry starch of konjak coated fertilizer of needs.
Step 1) in, according to fry starch of konjak：Polyvinyl alcohol：Water：Proportioning=3 of glycerine~9g:15g：300g:9g chooses former
Material.
Step 1) in, the degree of polymerization of the polyvinyl alcohol of selection for 1750 and more than, the degree of polymerization is too small, and the film water prepared is molten
Property is too strong, does not have the effect of sustained release.
Step 1) in, the mass ratio of fry starch of konjak and polyvinyl alcohol is between 0.2~0.8, at the beginning of the slow release fertilizer of preparation
Phase dissolution rate scope 1.64%~2.57%.Winged powder addition is bigger, then the speed of membrane degradation is faster, is sustained stronger.
Step 4) in, solution curtain coating thickness is suitable with 900-1300 grams/m in pallet, and it is 0.12 that can obtain thickness
~0.2 millimeter of film；
Step 7) in, every about square metre area film can with filling 1 kilogram of fertilizer, according to fertilising technique the need for cut
For inner wrapping bag with fertilizer.
Step 7) in, such as incorporation water-loss reducer, then the filling amount of water-loss reducer is (i.e. fertilizer within the 1% of sack volume：Water conservation
The volume ratio of agent is 100：1).
Step 7) film is cut to strip or piece type, and 2 sides, the 3rd side open-ended are sealed after doubling.
Step 7) in, the fertilizer is one kind in urea, ammonium hydrogen carbonate etc..
This method be particularly suitable for use in urea, ammonium hydrogen carbonate etc. see light, be heated volatile fertilizer slow release fertilizer prepare.This hair
Brown is presented in bright product, and with interception, the slow release fertilizer for being especially suitable for light breakdown type is prepared (such as ammonium hydrogen carbonate).
The beneficial effects of the invention are as follows：1st, the present invention uses fry starch of konjak and polyvinyl alcohol blending, and thermoplastic sealing prepares bag
Film bag with fertilizer, is blended, the existing process of coating machine coating is compared with Starch-Polyvinyl Alcohol：1) group partition inter-capacitive is high, sustained release effect
Fruit is more preferably；2) coating rate height, coating quantity can be precisely controlled；3) without link is dried after coating, fertilizer is without heat loss；4) by coating
Binding agent granulation, non-environmental-pollution are not needed between fertilizer components；5) can independent assortment water-loss reducer；6) regulation of film thickness can control
Membrane material mechanical strength, does not influence slow release effect.
2nd, the foundation of the fry starch of konjak coated fertilizer production technology, make full use of in fry starch of konjak accessory substance Glucomannan and
This two big excellent macromolecule component of starch, and and polyvinyl alcohol blending.To membrane component ratio, curtain coating, drying, film cutting, heat
The technique such as plastic packaging mouthful, fertilizer is filling and parameter are described in detail.Especially fly powder consumption, curtain coating amount and area, film to seal
Scope restriction has been carried out with canning meanses, the filling limitation of water-loss reducer, membrane area and filling amount.Coat fertilizer pocket can be made as needed
It is standby into various shapes (strip, bulk, sheet), product provide field crop, afforestation, check winds and fix drifting sand, family potted plant etc.
Fertilizer base is applied, imposed, and water-loss reducer administration.This blended liquid can be equally used with after fertilizer, water-loss reducer blending, passing through spiral shell
Bar extruding is prepared into bar-shaped slow release fertilizer.
3rd, film uniformity is good, and toughness and intensity are big.
4th, this method can solve the problem of fry starch of konjak deep process technology shortage, and factory is provided for fry starch of konjak coated fertilizer
Change production technology.Fry starch of konjak, polyvinyl alcohol, glycerine blending are film-made by the present invention, thermoplastic sealing is carried out to film coat fertilizer is made
Pocket, can avoid granulation of fertilizer process and granulation adhesive residue problem, and avoid fertilizer in coating process and coating
Thermal decomposition loss in drying process afterwards.Fry starch of konjak and polyvinyl alcohol ratio can be with slow release speed of the control accurate film to fertilizer
And degradation speed, and degradability is more preferable.The exploitation of this product has broad application prospects in slow release fertilizer field.
Brief description of the drawings
Fig. 1 is flow chart of the invention.
Fig. 2 is several membrane material degraded figures of the present invention.
Fig. 3 is the fry starch of konjak and polyvinyl alcohol blending membrane material degraded figure of the present invention.
Fig. 4 is fry starch of konjak and the polyvinyl alcohol blending film of the present invention, and starch and polyvinyl alcohol blending film degraded
Figure.
Fig. 5 is that the fry starch of konjak of the present invention is schemed with the coating bag of polyvinyl alcohol blending preparation.
Fig. 6 is the coated fertilizer figure of the present invention.
Fig. 7 is the fry starch of konjak and the scanning electron microscope (SEM) photograph after polyvinyl alcohol blending membrane degradation of the present invention.
Fig. 8 is starch and the scanning electron microscope (SEM) photograph after polyvinyl alcohol blending membrane degradation.
Fig. 9 is the scanning electron microscope (SEM) photograph after the polyvinyl alcohol membrane degradation of the present invention.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.
Embodiment 1：Fly powder and the comparison of the mechanical performance of polyvinyl alcohol blending film, starch and polyvinyl alcohol blending film
As shown in figure 1, a kind of preparation method of konjaku coated fertilizer, comprises the following steps：
1) 3 parts of fry starch of konjak, respectively 3 grams, 6 grams, 9 grams are taken.5 parts of polyvinyl alcohol, 15 grams every part.5 parts, every part 300 of water
Milliliter (i.e. 300g).5 parts of glycerine, 9 grams every part.1 part of starch, quality is 6 grams.Need the sample such as table 1 below prepared.
The each sample component proportion of table 1 and performance
2) step 1) choose 1 part of polyvinyl alcohol, 1 part of water and 1 part of glycerine (i.e. sequence number 1 in table 1) three pour into burning
Cup, the water bath condition of beaker is 95 DEG C of temperature, and the heat time is 180min；
3) step 2) finish after, the 1st part of fry starch of konjak (i.e. sequence number 1 in table 1) is poured into beaker, stirring, heating, after
It is continuous 30 minutes；
4) by step 3) obtained mixture pours into 15cm*15cm pallets (polyethylene pallet), often 20 grams of disk, about 16 disks.
Tiling is shaken up to try to get to the heart of a matter；
5) step 4) tiled pallet be put into convection oven dry, temperature be 55 DEG C, about 3 hours drying times；
The same step 1) -5 of preparation method of No. 2-5 (i.e. sequence number 2-5) sample), formula is sampled according to table 1.
6) step 5 is taken off) dried film (flying powder and polyvinyl alcohol blending film), and it is cut into 3*3cm, each sample
10, Water absorption and puncture force to be determined are cut altogether；
7) to step 6) obtained film is cut to the size that needs, and using sealing machine edge sealing, coat fertilizer pocket is made；
Take step 6) 5 films cutting, dried 1 hour in 55 DEG C of baking ovens, weigh monolithic quality and be designated as M0.By 5
Film is immersed in distilled water, is taken out after 24 hours, and it is water stain to wipe dry surface, then is weighed monolithic quality and be designated as M1.Water absorption=(M1-
M0)/M0.5 average values are taken as the Water absorption of the formulation samples.
8) to step 7) prepare after coating bag carry out fertilizer (or addition water-loss reducer etc.) it is filling after, then using sealing machine
Sealing, produces the fry starch of konjak coated fertilizer of needs.
Take step 7) the water suction film of 24 hours, dry water stains is wiped, the puncture force of film is determined using TPA (Texture instrument).In texture
TPA patterns, P/2N probes are selected on instrument.Test parameter is as follows：Height 5mm is corrected, speed 1.5mm/s, test speed before test
Speed 1.5mm/s after 10mm/s, test.Average.It is puncture force to test peak maximum, characterizes the intensity of membrane sample.Take 5
The average value of secondary measure as the formulation samples puncture force.
From table 1, fry starch of konjak addition proportioning is 0.2-0.6：When 1, the Water absorption scope of film is 0.52-
0.65g/g, the puncture force scope of film is 0.054-0.066N, and starch addition proportioning is 0.4:When 1, the Water absorption of film,
Puncture force is respectively 0.57g/g and 0.05N.Compared with starch, the winged powder addition of same ratio, the Water absorption of film is slightly higher, but
Puncture force is higher.The film uniformity that this explanation flies powder addition is good, and toughness and intensity are big.
Embodiment 2：Fly the comparison of the membrane degradation performance of powder-polyvinyl alcohol blending and starch blending
Formula according to table 1 prepares film, and method is with the step 1 in example 1)-step 5).8.5*5.5cm is cut into, each
Formula cuts natural degradation 12 months in 12, embedment yellow soil.Soil depth is 10cm.Periodically take out every month and respectively match somebody with somebody quadrat sampling
Product 1, are gone mouldy, breakage is taken pictures, and ESEM Microstructure observation.2nd month result of taking pictures see Fig. 2, Fig. 3,
The scanning result of Fig. 4 and sample segment such as Fig. 7, Fig. 8, Fig. 9.Fig. 2, Fig. 3, Fig. 4 fly powder and polyvinyl alcohol blending membrane degradation performance
Apparently higher than starch and polyvinyl alcohol blending film, polyvinyl alcohol film.Fig. 7, Fig. 8, Fig. 9 explanation fly powder and polyvinyl alcohol blending film goes out
Space after now degrading, and the change of two other film is little.
From Figure 2 it can be seen that 0.2-0.6:The membrane sample (sequence number 1-3 in table 1) of 1 ratio has certain water imbibition, with soil knot
Close close, yellow is presented.The sample of 3 ratios sees mildew and damaged hole.Mildew and hole area are with ratio increase
Increase and many.And 0:1、ST：Membrane sample (sequence number 4-5 in table 1) water imbibition of 1 ratio is poor, does not combine soil, and color presents transparent
Color and white.Do not see mildew and breakage caused by any degraded, illustrate also for 2 months and do not degrade.Fly powder addition
Film slightly have certain water imbibition, be more beneficial for biodegradation, degraded starts from 1st month, has holes at 2nd month.
Take 3,4 to close on breakage part film fragment and No. 5 samples are scanned electron microscopic observation, such as Fig. 7-9 is visible, No. 3
(0.6:1 formula) intensive and deep hole is presented, No. 4 are presented sparse and plain hole.And No. 5 (ST：1 formula) only occur
Part projection, film is without hole.This result also illustrates that winged powder addition degradability is better than what starch was added, and pure polyethylene film degradability
Difference.
Embodiment 3：Fly the comparison of powder-polyvinyl alcohol blending and starch blending coated fertilizer sustained release performance
Formula according to table 1 prepares film, step 1 of the method with example 1)-step 5).Film is opened, every film is diagonally cut
Into 2.It is diagonal again to fold, 1 side is sealed with sealing machine, 5 grams of urea are poured into, sealed, coat fertilizer pocket and coated fertilizer such as Fig. 5-6.
The coated fertilizer prepared is put into the beaker equipped with 100 milliliters of distilled water, and beaker is placed in 25 DEG C of thermostatic water-baths, bag
Discharged in distilled water of the fertilizer slow release into beaker in film, acquisition time is 28 days.Respectively in release the 24th hour, 4 days, 8 days,
10 milliliters of buffer solutions are taken within 12 days, 16 days, 20 days, 24 days and 28 days from beaker, and are supplemented immediately in 10 milliliters of distilled water, with
Maintain cumulative volume constant.Soluble ammonium state nitrogen content in buffer solutions is determined, and converts the content for the sustained release phase, difference is evaluated and matches somebody with somebody
The effect of square slow-release nitrogen fertilizer.
Soluble ammonium state nitrogen content result such as table 2.No. 1-3 formula 24 hours in soluble ammonium nitrogen sustained release amount difference not
Greatly, but the sustained release amount significant difference of 28 days.The remote 75% sustained release amount for not reaching Standard of 4 and 5 formulas.And fly the 1- of powder addition
No. 3 formula sustained release amounts more than 30%, effect is better than what pure polyvinyl alcohol and Starch-Polyvinyl Alcohol were blended.
The sustained release situation (soluble ammonium state nitrogen content) of the urea of the different formulations coat fertilizer pocket of table 2
Embodiment 4：A kind of preparation method of konjaku coated fertilizer, comprises the following steps：
1) according to fry starch of konjak：Polyvinyl alcohol：Water：Proportioning=12g of glycerine:15g：300g:9g chooses raw material；
2) step 1) polyvinyl alcohol chosen, water, glycerine pours into kneader, and design temperature is 95 DEG C, mixing speed 60r/
Min, opens heating, stirring, and the time is 3 hours, obtains mixture A；
3) step 1) choose fry starch of konjak add step 2) mixture A in, continue stir 0.5 hour, mixed
Thing B；
4) the Screw Extrusion step 3 of kneader) obtained mixture B, polyethylene pallet holds, and curtain coating makes solution equal immediately
Even tiling pallet；
5) by step 4) mixture formation film of the pallet equipped with mixture in 80 DEG C of forced air dryings 2 hours, pallet；
6) by step 5) pallet and film take off film after cooling down at room temperature, that is, obtains the film that thickness is 0.12~0.2 millimeter；
7) to step 6) obtained film is cut to the size that needs, and using sealing machine edge sealing, coat fertilizer pocket is made；
8) to step 7) prepare after coating bag carry out fertilizer (or addition water-loss reducer etc.) it is filling after, then using sealing machine
Sealing, produces the fry starch of konjak coated fertilizer of needs.The Water absorption of film is 0.66g/g, and the puncture force scope of film is 0.052N,
Each raw material cited by the present invention, and each raw material of the invention bound, interval value, and technological parameter
The bound of (such as temperature, time), interval value can realize the present invention, embodiment numerous to list herein.
Claims (7)
1. a kind of preparation method of fry starch of konjak coated fertilizer, it is characterized in that comprising the following steps：
1) according to fry starch of konjak：Polyvinyl alcohol：Water：Proportioning=3 of glycerine~12g:15g：300g:9g chooses raw material；
2) step 1) polyvinyl alcohol chosen, water, glycerine pours into kneader, and design temperature is 95 DEG C, mixing speed 60r/min,
Heating, stirring are opened, the time is 3 hours, obtains mixture A；
3) step 1) choose fry starch of konjak add step 2) mixture A in, continue stir 0.5 hour, obtain mixture B；
4) the Screw Extrusion step 3 of kneader) obtained mixture B, polyethylene pallet holds, and curtain coating allows solution uniformly to put down immediately
Spread pallet；
5) by step 4) mixture of the pallet equipped with mixture in 50~80 DEG C of forced air dryings 2~3 hours, pallet formed
Film；
6) by step 5) pallet and film take off film after cooling down at room temperature, that is, obtains the film that thickness is 0.12~0.2 millimeter；
7) to step 6) obtained film is cut to the size that needs, and using sealing machine edge sealing, coat fertilizer pocket is made；
8) to step 7) prepare after coating bag carry out fertilizer it is filling after, then using sealing machine sealing, produce the konjaku of needs
Fly powder coated fertilizer.
2. a kind of preparation method of fry starch of konjak coated fertilizer according to claim 1, it is characterized in that：Step 1) in, press
According to fry starch of konjak：Polyvinyl alcohol：Water：Proportioning=3 of glycerine~9g:15g：300g:9g chooses raw material.
3. a kind of preparation method of fry starch of konjak coated fertilizer according to claim 1, it is characterized in that：Step 1) in, choosing
The degree of polymerization of the polyvinyl alcohol taken be 1750 and more than.
4. a kind of preparation method of fry starch of konjak coated fertilizer according to claim 1, it is characterized in that：Step 4) in, support
Solution curtain coating thickness is suitable with 900-1300 grams/m in disk, obtains the film that thickness is 0.12-0.2 millimeters.
5. a kind of preparation method of fry starch of konjak coated fertilizer according to claim 1, it is characterized in that：Step 7) in, often
The fertilizer of square metre filling 1 kilogram of area film, according to fertilising technique the need for be cut to inner wrapping bag with fertilizer.
6. a kind of preparation method of fry starch of konjak coated fertilizer according to claim 1, it is characterized in that：Step 7) in, bag
Film bag addition water-loss reducer, the filling amount of water-loss reducer is within the 1% of sack volume.
7. a kind of preparation method of fry starch of konjak coated fertilizer according to claim 1, it is characterized in that：Step 7) in, institute
It is one kind in urea, ammonium hydrogen carbonate to state fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226337.8A CN106957504B (en) | 2017-04-08 | 2017-04-08 | A kind of preparation method of fry starch of konjak coated fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226337.8A CN106957504B (en) | 2017-04-08 | 2017-04-08 | A kind of preparation method of fry starch of konjak coated fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106957504A true CN106957504A (en) | 2017-07-18 |
| CN106957504B CN106957504B (en) | 2019-08-09 |
Family
ID=59484098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710226337.8A Expired - Fee Related CN106957504B (en) | 2017-04-08 | 2017-04-08 | A kind of preparation method of fry starch of konjak coated fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106957504B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528717A (en) * | 2003-10-16 | 2004-09-15 | 华东理工大学 | A coating agent for slow-release fertilizer |
| CN1587235A (en) * | 2004-08-09 | 2005-03-02 | 沈阳农业大学 | Film coated control releasing lawn special fertilizer and its producing method |
| KR20090032621A (en) * | 2007-09-28 | 2009-04-01 | 리트머스화학 주식회사 | Biodegradable Films with Phosphoric Acid / Hypropylpropyl Crosslinked Starch |
| US20150056461A1 (en) * | 2008-06-30 | 2015-02-26 | Kimberly-Clark Worldwide, Inc. | Fragranced Water-Sensitive Film |
| CN106396874A (en) * | 2016-08-29 | 2017-02-15 | 贵阳开磷化肥有限公司 | Preparation method of slow release fertilizer used for corn plantation |
-
2017
- 2017-04-08 CN CN201710226337.8A patent/CN106957504B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528717A (en) * | 2003-10-16 | 2004-09-15 | 华东理工大学 | A coating agent for slow-release fertilizer |
| CN1587235A (en) * | 2004-08-09 | 2005-03-02 | 沈阳农业大学 | Film coated control releasing lawn special fertilizer and its producing method |
| KR20090032621A (en) * | 2007-09-28 | 2009-04-01 | 리트머스화학 주식회사 | Biodegradable Films with Phosphoric Acid / Hypropylpropyl Crosslinked Starch |
| US20150056461A1 (en) * | 2008-06-30 | 2015-02-26 | Kimberly-Clark Worldwide, Inc. | Fragranced Water-Sensitive Film |
| CN106396874A (en) * | 2016-08-29 | 2017-02-15 | 贵阳开磷化肥有限公司 | Preparation method of slow release fertilizer used for corn plantation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106957504B (en) | 2019-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105860459A (en) | Preparation method of high-thermal-insulation/soil-moisture-preservation degradable agricultural mulching film material | |
| CN105199627B (en) | Environment protecting plant glue and preparation method thereof | |
| CN109762802B (en) | A kind of cell carrier particle aggregate and preparation method thereof | |
| CN102775750A (en) | Degradable multiband light conversion ground film and preparation method thereof | |
| CN107056423A (en) | A kind of sun-proof blade face fluid fertilizer and preparation method thereof | |
| CN104649810A (en) | Method for preparing green nutritional soils of flowers | |
| CN106010886A (en) | Method for producing pit mud and application method thereof | |
| CN104130062A (en) | Antibacterial organic fertilizer for blueberry fruit tree and preparation method thereof | |
| CN104130045A (en) | Blueberry special-purpose safe organic fertilizer and preparation method thereof | |
| CN105295394A (en) | Farmland weeding ecological fluid soil conditioner as well as preparation method and application method thereof | |
| CN106957504B (en) | A kind of preparation method of fry starch of konjak coated fertilizer | |
| CN105199743B (en) | A kind of water and soil conservation type degradable liquid-state mulch film and its preparation and application | |
| CN108774530B (en) | A kind of transplantation method of degradable soil consolidation agent and preparation method thereof and plantling | |
| CN102079914A (en) | Coating liquid for preparation of high barrier milk packaging film as well as preparation method and application thereof | |
| CN108218390B (en) | For storing sth. in a cellar the material and preparation method of wine jar sealing | |
| CN109134148A (en) | A kind of olive residue organic fertilizer and its preparation method and application | |
| CN109006365A (en) | A kind of sphagna cured fiber soil and preparation method thereof, application | |
| CN117843412B (en) | Slow-release fertilizer based on pre-oxidized kitchen waste composite and preparation method thereof | |
| Rani et al. | Synergistic impact of natural gums and crosslinkers on the properties of oilseed meals based biopolymeric films | |
| CN101270010B (en) | Fertilizer control release clothing sheet | |
| CN108794054A (en) | A kind of preparation method of white spirit pit biological brick | |
| CN107903822A (en) | A kind of liquid agricultural film coating and its preparation process | |
| CN1303864C (en) | Film-forming agent for rice seed coating agent and preparation method thereof | |
| Trenkel-Amoroso | Synthesis, degradation and practical applications of a glycerol/citric acid condensation polymer | |
| CN107383896A (en) | A kind of edible food preservative film and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 Termination date: 20210408 |