CN106800674A - Starch foaming product and preparation method thereof - Google Patents
Starch foaming product and preparation method thereof Download PDFInfo
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- CN106800674A CN106800674A CN201710015666.8A CN201710015666A CN106800674A CN 106800674 A CN106800674 A CN 106800674A CN 201710015666 A CN201710015666 A CN 201710015666A CN 106800674 A CN106800674 A CN 106800674A
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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
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/125—Water, e.g. hydrated salts
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/10—Water or water-releasing 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
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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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)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Medicinal Preparation (AREA)
Abstract
The present invention relates to a kind of starch foaming product and preparation method thereof, the starch foaming product, including following percentage by weight component：Starch or modified starch 88 95%, nucleator 1 2%, foaming agent 2 9%, plasticizer 1 2%；The nucleator is selected from one or more in wheat bran, the corn dregs of rice, dregs of beans, Microcrystalline Starch and microcrystalline cellulose.Above-mentioned starch foaming product produces foaming product using edible natural products and its derivative as nucleator, main base is edible starch simultaneously, the present invention directly pack content is allowd, the field higher to hygienic requirements such as food, health products, medical supplies is can be applied to.
Description
Technical field
The present invention relates to technical field of polymer materials, more particularly to a kind of starch foaming product and preparation method thereof.
Background technology
With the fast development for selling industry soon, it is packed for foamed product consumption and continues to increase, greatly accelerates non-renewable
The consumption and environmental pollution of the energy.Starch as a kind of abundant natural reproducible resource of nature, with wide material sources, price
The advantage, the focus of exploitation and application as international research of starch base foamed products such as cheap, the degradable and regeneration period is short.
In existing research, starch foamed products are main to be total to by compositions such as full starch or starch and cellulose, polyesters
Nucleator and foaming agent are mixed and be aided with, is foamed and is prepared by extruding system extrusion foaming or vulcanizer compression molding.Traditional hair
Infusion mainly includes supercritical CO 2, dodecyl sodium sulfate, azodicarbonamide (AC foaming agents) etc., these reagents or be to change
Reagent or high cost are learned, has injury to environment and human body, it is impossible to large-scale application.In recent years, for cost-effective and satisfaction
Ecological requirements, during vapor foaming technique is widely used in producing and studying.In foaming process, it will usually add nucleator to enter
And the surface tension of polymer is reduced, promote nuclei of bubbles to be formed.It is in current foamed products production process to use inorganic nucleator more,
Such as calcium carbonate, talcum powder.The constituents have larger hardness, the process equipment in process easily to running at high speed
(such as screw extruder, high-speed mixer) causes mechanical wear.The presence of such inorganic component, limits Related product simultaneously
Application in food, medicine and other fields.
The content of the invention
Based on this, it is an object of the invention to provide a kind of starch foaming product.
Specific technical scheme is as follows：
A kind of starch foaming product, including the component of following percentage by weight is prepared from：
The nucleator is selected from one or more in wheat bran, the corn dregs of rice, dregs of beans, Microcrystalline Starch and microcrystalline cellulose.
Wherein in one embodiment, the foaming agent is water.
Wherein in one embodiment, the plasticizer be selected from glycerine, sorbierite, polyethylene glycol, propane diols, mannitol and
One or more in xylitol.
Wherein in one embodiment, the starch is selected from farina, cornstarch, tapioca and wheat and forms sediment
One or more in powder.
Wherein in one embodiment, the starch conversion starch is selected to be crosslinked by etherificate, esterification or hydroxypropylation and changed
One or more in farina, cornstarch, tapioca, the wheaten starch of property.
It is a further object of the present invention to provide the preparation method of above-mentioned starch foaming product.
Specific technical scheme is as follows：
The preparation method of above-mentioned starch foaming product, comprises the following steps：
The nucleator is dried, is crushed；
Blending：By the nucleator after the starch or the modified starch, drying and crushing, the plasticizer and portion
Divide in the foaming agent addition mixer, blending obtains blend composition；
Granulation：By the foaming agent of the blend and surplus by double screw extruder extruding pelletization, pellet is obtained；
Foaming：By the pellet by single screw extrusion machine extrusion foaming, the starch foaming product is obtained final product.
Wherein in some embodiments, the technological parameter of the drying and crushing of the nucleator is：It is dry with 100-200 DEG C of vacuum
Dry 2-3h, makes the moisture near less than 6% of the nucleator, is crushed to 45-55 μm.
Wherein in some embodiments, the technological parameter of the blending is：20-25min is blended with 70-200r/min.
Wherein in some embodiments, the technological parameter of the granulation is：The double screw extruder draw ratio 30-40：
1, screw speed 60-240r/min, die head aperture are 2-3.5mm, and each interval temperature range is 40-100 DEG C, the sample introduction stream of water
It is 20-80ml/min to measure, and the sample introduction flow of the blend composition is 5-50L/h.
Wherein in some embodiments, moisture is 13-15% in controlling the pellet；The technological parameter of the foaming
For：The single screw extrusion machine draw ratio 15-25：1, screw speed 60-160r/min, die head aperture are 2-3.3mm, each interval
Temperature range be 140-180 DEG C, head extrusion pressure be 20-30Mpa.
Above-mentioned starch foaming product chooses the natural components such as maize peel, wheat bran and its derivative as organic nucleating agent.By
It is fiber and protein in its main component, network-like colloid entirety can be interconnected to form with starch molecule, and with prolonging
Stretching property and elasticity, are to constitute the skeleton for keeping, and make product be easier to form and keep loose porous structure, while shallow lake can be improved
The mechanical property and water proofing property of powder base material, and suppress the ageing process of starch, and then play and promote the double of nucleation and performance enhancement
Recast is used.
Above-mentioned starch foaming product prepares thermoplastic starch powder-granule material (just finished product) using twin-screw extrusion system blending.Connect
, just finished pellets are melt into fluid in high temperature and high pressure environment (Single screw extrusion foaming system), because the presence of nucleator makes
Internal fluid formed free energy difference, in extrusion material abrupt release pressure and with countless nucleators be basic point formation gas
Room.Meanwhile, just the hydrone inside finished product forms superheated fluid at high temperature under high pressure, and instant vaporization produces bubble at head mouth
Hole.
Above-mentioned starch foaming product and preparation method thereof has advantages below and beneficial effect：
(1) above-mentioned starch foaming product produces foaming as nucleator using edible natural products and its derivative
Product, while main base is edible starch so that the present invention can direct pack content, can be applied to food, health care
The field higher to hygienic requirements such as product, medical supplies, fills up market vacancy in this regard, while reducing to plant equipment
Abrasion.
(2) above-mentioned starch foaming product is equipped with environmental protection raw material and produces full starch foaming product with a kind of environmental protection technique
A set of system of product.Existing foaming system is avoided to pollute environment in process.Meanwhile, the product that above-mentioned preparation method is obtained
In nature environment, can natural degradable, without any residual.
(3) preparation method of above-mentioned starch foaming product uses batch (-type) processing mode, and starch pellet is produced step by step (just
Finished product) and foaming product.Just finished product can be produced in job shop, then to transport foamed products secondary using being carried out near ground
Processing, thus increases manufacturing enterprise's radiation scope and greatlys save transport and the cost of storage.
Above-mentioned starch foaming product is (with vapor as primary blowing agent and organic edible natural products and its derivative
As nucleator), to develop raw material sources and processing technology is green full starch foaming product, product can directly and packing material
Contact, can be applied to the fields such as food and medicine.The use of organic nucleating agent can slow down the abrasion of plant equipment, extension processing and set
Standby service life and enhancing properties of product.The present invention simultaneously because the raw material and greenization production technology of edibility, after discarding
Sample as animal feed or the fertilizer of soil, and with natural degradable, can will not there is any harm to nature.
Specific embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But, the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding to the disclosure is more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article with belong to technical field of the invention
The implication that technical staff is generally understood that is identical.The term for being used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
The arbitrary and all of combination of the Listed Items of pass.
Embodiment 1
A kind of preparation method of starch foaming product of the present embodiment, comprises the following steps：
(1) nucleator is prepared：It is 5% that wheat bran is dried to moisture, and 300 mesh sieves are crossed after crushing.
(2) material is weighed：Cornstarch 88wt% nucleators 2wt% and foaming agent (water) 0.5wt%
(3) starch that will measure, nucleator, foaming agent are placed in high-speed mixer, at normal temperatures with speed 70r/min
Premix 5min；
(4) add the water of glycerine 1.5wt% and 8wt% that 20min is blended with speed 70r/min under the conditions of 60 DEG C, it is ensured that
It is well mixed；
(5) double screw extruder is opened, the blend composition obtained using step (4) simultaneously adds the water to carry out extruding pelletization；
(51) seven sections of temperature of double screw extruder are set：40 DEG C of screw rod first paragraph temperature, screw rod since charge door
Two sections of 40 DEG C of temperature, the 3rd section of 80 DEG C of temperature of screw rod, the 4th section of 90 DEG C of temperature of screw rod, the 5th section of 90 DEG C of temperature of screw rod, screw rods
Six sections of 90 DEG C of temperature, the 7th section of 80 DEG C of temperature of screw rod, head temperature are 80 DEG C, and waiting temperature stabilization is setting temperature；
(52) need to set double screw extruder rotating speed 60r/min according to production；
(53) extruder is added water to plunger displacement pump, the sample introduction flow of water is 20ml/min；
(54) well mixed raw material is added into extruder, feeding machine flow 5L/h with twin-screw volume type feeding machine；
(55) feed rate for coordinating feeding machine, plunger displacement pump and double screw extruder three prepares thread like material, and controls
Granulation material moisture reaches 13%；
(56) granulated with comminutor after the material cooling for collecting extrusion；
(6) single screw extrusion machine is opened, screw rod high pressure extrusion way is used using the first finished pellets obtained in step (5)
Foaming；
(61) three sections of temperature of single screw extrusion machine are set：140 DEG C of screw rod first paragraph temperature, screw rod since charge door
Two sections of 160 DEG C of temperature, the 3rd section of 180 DEG C of temperature of screw rod, head temperature is set to 180 DEG C；
(62) need to set single screw extrusion machine rotating speed 60r/min according to production；
(63) first finished product is directly added into single screw extrusion machine；
(64) each parameter of trace regulation Single screw extrusion system such as temperature, rotating speed etc., and extrude the generation starch foaming
Product.
Embodiment 2
A kind of preparation method of starch foaming product of the present embodiment, comprises the following steps：
(1) nucleator is prepared：It is 6% that the corn dregs of rice are dried to moisture, and 300 mesh sieves are crossed after crushing.
(2) material is weighed：Tapioca 95wt%, nucleator 1wt% and foaming agent (water) 0.2wt%
(3) starch that will measure, nucleator, foaming agent are put in high-speed mixer, at normal temperatures with speed 200r/min
First premix 8min；
(4) add glycerine 1.8wt% and water 2wt% that 25min is blended with speed 200r/min at 60 DEG C, it is ensured that mixing is equal
It is even；
(5) double screw extruder is opened, the blend composition obtained using step (4) simultaneously adds the water to carry out extruding pelletization；
(51) seven sections of temperature of double screw extruder are set：40 DEG C of screw rod first paragraph temperature, screw rod since charge door
One section of 40 DEG C of temperature, 80 DEG C of screw rod first paragraph temperature, 100 DEG C of screw rod first paragraph temperature, 100 DEG C of screw rod first paragraph temperature, screw rod
90 DEG C of first paragraph temperature, 80 DEG C of screw rod first paragraph temperature, head temperature are 80 DEG C, and waiting temperature stabilization is setting temperature；
(52) need to set double screw extruder rotating speed 240r/min according to production；
(53) plasticizer is added into extruder with plunger displacement pump, the sample introduction flow of water is 80ml/min；
(54) well mixed raw material is added into extruder, feeding machine flow 15L/h with twin-screw volume type feeding machine；
(55) speed for coordinating feeding machine, plunger displacement pump and double screw extruder three prepares thread like material, and controls grain
Material moisture reaches 15%；
(56) granulated with comminutor after the material cooling for collecting extrusion；
(6) single screw extrusion machine is opened, screw rod high pressure extrusion way is used using the first finished pellets obtained in step (5)
Foaming；
(61) three sections of temperature of single screw extrusion machine are set：140 DEG C of screw rod first paragraph temperature, screw rod since charge door
One section of 160 DEG C of temperature, 170 DEG C of screw rod first paragraph temperature, head temperature is set to 180 DEG C；
(62) need to set single screw extrusion machine rotating speed 160r/min according to production；
(63) first finished product is directly added into single screw extrusion machine；
(64) each parameter of trace regulation Single screw extrusion system such as temperature, rotating speed etc., and extrude generation foam production finished product.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of starch foaming product, it is characterised in that the component including following percentage by weight is prepared from：
The nucleator is selected from one or more in wheat bran, the corn dregs of rice, dregs of beans, Microcrystalline Starch and microcrystalline cellulose.
2. starch foaming product according to claim 1, it is characterised in that the foaming agent is water.
3. starch foaming product according to claim 1, it is characterised in that the plasticizer is selected from glycerine, sorbierite, poly-
One or more in ethylene glycol, propane diols, mannitol and xylitol.
4. the starch foaming product according to claim any one of 1-3, it is characterised in that the starch forms sediment selected from potato
One or more in powder, cornstarch, tapioca and wheaten starch.
5. the starch foaming product according to claim any one of 1-3, it is characterised in that the starch conversion starch is selected from
By in etherificate, esterification or the cross-linking modified farina of hydroxypropylation, cornstarch, tapioca, wheaten starch
Plant or several.
6. the preparation method of the starch foaming product described in any one of claim 1-5, it is characterised in that comprise the following steps：
The nucleator is dried, is crushed；
Blending：By the nucleator after the starch or the modified starch, drying and crushing, the plasticizer and the hair
Infusion is added in mixer, blending, obtains blend composition；
Granulation：By the blend by double screw extruder extruding pelletization, pellet is obtained；
Foaming：By the pellet by single screw extrusion machine extrusion foaming, the starch foaming product is obtained final product.
7. preparation method according to claim 6, it is characterised in that the technological parameter of the drying and crushing of the nucleator
For：With 100-200 DEG C of vacuum drying 2-3h, make the moisture near less than 6% of the nucleator, be crushed to 45-55 μm.
8. preparation method according to claim 6, it is characterised in that the technological parameter of the blending is：With 70-200r/
Min is blended 20-25min.
9. preparation method according to claim 6, it is characterised in that the technological parameter of the granulation is：The twin-screw
Extruder draw ratio 30-40：1, screw speed 60-240r/min, die head aperture are 2-3.5mm, and each interval temperature range is
40-100 DEG C, the sample introduction flow of water is 20-80ml/min, and the sample introduction flow of the blend composition is 5-50L/h.
10. preparation method according to claim 6, it is characterised in that moisture is 13- in controlling the pellet
15%；The technological parameter of the foaming is：The single screw extrusion machine draw ratio 15-25：1, screw speed 60-160r/min,
Die head aperture is 2-3.3mm, and each interval temperature range is 140-180 DEG C, and head extrusion pressure is 20-30Mpa.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698808A (en) * | 2016-08-09 | 2018-02-16 | 天津定创科技发展有限公司 | Starch foaming formula and its foaming method |
| CN109679307A (en) * | 2018-12-27 | 2019-04-26 | 泸州天浩新材料研究所(普通合伙) | A kind of biodegradable pearl cotton and preparation method thereof |
| CN110684230A (en) * | 2019-09-17 | 2020-01-14 | 广州绿发材料科技有限公司 | Starch foam material foamed by supercritical carbon dioxide and preparation method thereof |
| CN110790985A (en) * | 2018-08-02 | 2020-02-14 | 广州绿发材料科技有限公司 | Starch foam material and preparation method thereof |
| CN111154147A (en) * | 2020-01-15 | 2020-05-15 | 张绍为 | Environment-friendly degradable buffer packaging material and preparation method thereof |
| CN112029153A (en) * | 2019-06-04 | 2020-12-04 | 湖南工业大学 | Environment-friendly starch-based foaming material and preparation method thereof |
| CN112898637A (en) * | 2021-01-22 | 2021-06-04 | 中新国际联合研究院 | Starch-based multilayer foaming buffer support plate and preparation method thereof |
| CN112980057A (en) * | 2021-03-26 | 2021-06-18 | 广州绿发材料科技有限公司 | Starch foaming material and preparation method thereof |
| CN113321841A (en) * | 2021-05-19 | 2021-08-31 | 东莞市凯成环保科技有限公司 | Preparation method of waterproof starch foaming material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107698808A (en) * | 2016-08-09 | 2018-02-16 | 天津定创科技发展有限公司 | Starch foaming formula and its foaming method |
| CN110790985A (en) * | 2018-08-02 | 2020-02-14 | 广州绿发材料科技有限公司 | Starch foam material and preparation method thereof |
| CN110790985B (en) * | 2018-08-02 | 2022-07-19 | 广州绿发材料科技有限公司 | Starch foam material and preparation method thereof |
| CN109679307A (en) * | 2018-12-27 | 2019-04-26 | 泸州天浩新材料研究所(普通合伙) | A kind of biodegradable pearl cotton and preparation method thereof |
| CN112029153A (en) * | 2019-06-04 | 2020-12-04 | 湖南工业大学 | Environment-friendly starch-based foaming material and preparation method thereof |
| CN110684230A (en) * | 2019-09-17 | 2020-01-14 | 广州绿发材料科技有限公司 | Starch foam material foamed by supercritical carbon dioxide and preparation method thereof |
| CN111154147A (en) * | 2020-01-15 | 2020-05-15 | 张绍为 | Environment-friendly degradable buffer packaging material and preparation method thereof |
| CN112898637A (en) * | 2021-01-22 | 2021-06-04 | 中新国际联合研究院 | Starch-based multilayer foaming buffer support plate and preparation method thereof |
| CN112980057A (en) * | 2021-03-26 | 2021-06-18 | 广州绿发材料科技有限公司 | Starch foaming material and preparation method thereof |
| CN113321841A (en) * | 2021-05-19 | 2021-08-31 | 东莞市凯成环保科技有限公司 | Preparation method of waterproof starch foaming material |
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