CN106939120A - A kind of manufacture method of degradable PLA biological net - Google Patents
A kind of manufacture method of degradable PLA biological net Download PDFInfo
- Publication number
- CN106939120A CN106939120A CN201710236044.8A CN201710236044A CN106939120A CN 106939120 A CN106939120 A CN 106939120A CN 201710236044 A CN201710236044 A CN 201710236044A CN 106939120 A CN106939120 A CN 106939120A
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- China
- Prior art keywords
- pla
- manufacture method
- degradable
- biological net
- net
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Classifications
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- 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
- B29D28/00—Producing nets or the like, e.g. meshes, lattices
-
- 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
-
- 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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of manufacture method of degradable PLA biological net, discarded corn stem, dish stalk, bagasse are cleaned and PLA mixing serum is obtained with HNO3, NaOH processing；Arabic gum, PPS, polycaprolactone is added to mix；The compound that second step is obtained is put into Tong Guo Luo Rod in collection charging basket and pushes out mesh, cooling and shaping.Cut according to product customization specification requirement, packaging is dispatched from the factory.PLA biological net can be used for flowers extraneous root and degradable into CO2 and H2O.The present invention need not add any catalyst using discarded corn stem, dish stalk, bagasse as raw material in course of reaction, technique is simple, with preferable intensity, ductility, heat endurance.Contamination-free is produced in preparation process, and fixed net can be planted as mulch film or flowers extraneous root support or hillside land used or building trade builds catch net or constructing road catch net is used.On the other hand production cost and later stage waste treatment cost are reduced, production capacity is improved.
Description
Technical field
The present invention relates to a kind of method that plant cellulose prepares renewable raw materials, particularly a kind of degradable PLA
The manufacture method of biological net.
Background technology
At present, the white pollution that waste or used plastics are caused has become a great problem in human society environment protection treating, and gives up
The regeneration of old plastics, is the effective way for solving white pollution.In the vegetable cultivation of China, the plantation of restocking vegetables is compared
Greatly, support used in restocking vegetable cultivation process, it is most of to be made of bamboo and wood plastic or other material, not only waste woods
Industry resource, and easily discard, damage, later stage processing workload is added, is spent larger.Other hillside land-use Seed, which plants Gu, Dings Net mono-
As be made up of steel or simple plastics, high ferro etc. it is general also be plastic wire or plastic net, these materials are under field conditions (factors)
It is extremely hard to decompose.If burning disposal is not only costly, large quantity of exhaust gas waste residue can be also produced.
The content of the invention
The present invention provides a kind of manufacture of degradable PLA biological net to solve above mentioned problem of the prior art
Method, its practicality and high efficiency, low cost, technology are simple.
To realize object above, the present invention is achieved by the following technical programs：A kind of degradable PLA is biological
The manufacture method of net, including：The first step, discarded corn stem, dish stalk, bagasse are cleaned and obtained with HNO3, NaOH processing
PLA mixing serum；Second step, addition Arabic gum, PPS, polycaprolactone are mixed；3rd step, by the mixing of second step
Material, which divides six sections of high-temperature stirrings and is transferred to Tong Guo Luo Rod in collection charging basket, pushes out mesh, cooling and shaping；4th step, according to product
Customize specification requirement to cut, packaging is dispatched from the factory.
Preferably, the PLA weight/mass percentage composition in the PLA biological net is 80-90%.
Preferably, the type of cooling of the cooling and shaping is air-cooled or water-cooling pattern.
Preferably, the Arabic gum secretes the glue to be formed from gum, and addition is the quality percentage of mixing serum
Number 1-2%.
Preferably, the PPS and polycaprolactone mass percent added in the second step is 1-5% and 0.5-1%.
Preferably, the nanoscale that mass percent is 1-2% can be added in the PLA compound that the second step is obtained
Calcium carbonate or mass percent 10-15% PBS or 0.5-1% sorbierite or 0.6-0.8% PCL be used to change poly- breast
The intensity or ductility of sour biological net.
Preferably, the mass fraction of the HNO3 is that 8-10%, NaOH mass fraction are 2-3%.
Preferably, in the 3rd step stirring extrusion temperature of dissolving points six sections be 160-180 DEG C respectively, 180-190 DEG C,
190-195℃、195-200℃、200-210℃、210-225℃。
Preferably, described PLA biological net can be degradable into CO2 and H2O.
The present invention need not add any catalysis using discarded corn stem, dish stalk, bagasse as raw material in course of reaction
Agent, technique is simple, with preferable intensity, ductility, heat endurance.Contamination-free is produced in preparation process, can be used as mulch film
Or flowers extraneous root support or hillside land used plant fixed net or constructing road catch net is used.On the other hand production cost is reduced
And later stage waste treatment cost, improve production capacity.
Embodiment
The technical solution of the present invention is further illustrated with reference to specific embodiment, embodiment is not to be construed as pair
The limitation of technical solution.
Embodiment 1：
A kind of manufacture method of degradable PLA biological net, discarded corn stem, dish stalk, bagasse are cleaned and are used in combination
8% HNO3,2% NaOH processing obtain PLA mixing serum, the Arabic gum of addition 1%, 5% into the described emulsification
PPS mix, 160-180 DEG C, 180-190,190-195C, 195-200 DEG C, 200-210 DEG C, 210- will be blended in
225 DEG C, because height and diameter ratio (L/D ratios) difference of mixing plant cause temperature to have 20~30 DEG C of differences.
After being sufficiently stirred for, taking supernatant fluid filtrate to be squeezed into by grinding tool, thread and quickly progress screw extrusion reticulates thing,
Static lowering cold front heavy rain sizing, cuts, packaging is dispatched from the factory according to product customization specification requirement.This PLA biological net is made
Thin-film network be used for tomato seedling extraneous root cultivate, along with the growth of plant, because the biological inoculum in planting environment is more, ring
Border is more moist, and PLA biological net is degradable, while detecting its catabolite, is CO2 and H2O.
This to be taken root support for flowers, such as more in discarded object, pushing away the abundant environment of fertilizer can be degradable after lower 120 days
Into CO2 and H2O.The soil conservation quilt of hillside plantation/forest exploitation plantation is such as used in, is taken root with plant is contributed to.Tradition is planted
Thing takes root support or plantation protection is diaphragm/net with materials such as PVC/PP/PE, and this method generally requires secondary engineering
Processing.
Embodiment 2：
A kind of manufacture method of degradable PLA biological net, discarded corn stem, dish stalk, bagasse are cleaned and are used in combination
10% HNO3,3% NaOH processing obtain PLA mixing serum, into the described emulsification add 2% Arabic gum,
8% PPS low-temperature mixeds stirring, is put into progress high-pressure subsection high-temperature mixing in reactor by mixed liquor, will be blended in 160-
180 DEG C, 180-190,190-195C, 195-200 DEG C, 200-210 DEG C, 210-225 DEG C.Because of the height and diameter ratio of mixing plant
(L/D ratios) difference causes temperature to have 20~30 DEG C of differences.After being sufficiently stirred for, supernatant fluid filtrate is taken to be squeezed into by grinding tool thread
And quickly progress screw extrusion reticulates thing, static lowering cold front heavy rain sizing is cut according to product customization specification requirement, according to
Product customization specification requirement is cut, and packaging is dispatched from the factory.The thin-film network that this PLA biomembrane is made is used as the protection quilt of rail,
This thin-film network can natural degradation after 120 days, detect its catabolite, be into CO2 and H2O.Use drop on rail
Solve speed very fast, speculate that analysis may be relevant with the environmental factor at high ferro in theory, the biological inoculum in this environment is more,
Environment is more moist, therefore causes degradable PLA biomembrane degradation rate very fast.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
Some of which part may be made some variation embodies the present invention principle, belong to protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of manufacture method of degradable PLA biological net, it is characterised in that including：
The first step, discarded corn stem, dish stalk, bagasse are cleaned and PLA mixing serum is obtained with HNO3, NaOH processing；
Second step, addition Arabic gum, PPS, polycaprolactone are mixed；
3rd step, second step compound is divided six sections of high-temperature stirrings and is transferred to Tong Guo Luo Rod in collection charging basket push out mesh,
Cooling and shaping；
4th step, is cut according to product customization specification requirement, and packaging is dispatched from the factory.
2. the manufacture method of a kind of degradable PLA biological net according to claim 1, it is characterised in that described poly-
The mass percent of PLA in lactic biological net is 80-90%.
3. the manufacture method of a kind of degradable PLA biological net according to claim 1, it is characterised in that described cold
But the type of cooling shaped is air-cooled or water-cooling pattern.
4. a kind of manufacture method of degradable PLA biological net according to claim 1, it is characterised in that Ah
Primary glue is drawn to secrete the glue to be formed from gum, addition is the mass percent 1-2% of mixing serum.
5. the manufacture method of a kind of degradable PLA biological net according to claim 1, it is characterised in that described
The PPS and polycaprolactone mass percent added in two steps is 1-5% and 0.5-1%.
6. the manufacture method of a kind of degradable PLA biological net according to claim 1, it is characterised in that described
Mass percent can be added in the PLA compound that two steps are obtained for the nano level calcium carbonate of 1-2% or mass percent 10-
15% PBS or 0.5-1% sorbierite or 0.6-0.8% PCL are used for the intensity or ductility for changing PLA biological net.
7. the manufacture method of a kind of degradable PLA biological net according to claim 1, it is characterised in that described
HNO3 mass fraction is that 8-10%, NaOH mass percent are 2-3%.
8. the manufacture method of a kind of degradable PLA biological net according to claim 1, it is characterised in that described
In three steps the stirring extrusion temperature of dissolving points six sections be 160-180 DEG C respectively, 180-190 DEG C, 190-195 DEG C, 195-200 DEG C,
200-210℃、210-225℃。
9. the manufacture method of a kind of degradable PLA biological net according to claim 1-8, it is characterised in that described
PLA biological net can be degradable into CO2 and H2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236044.8A CN106939120A (en) | 2017-04-12 | 2017-04-12 | A kind of manufacture method of degradable PLA biological net |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710236044.8A CN106939120A (en) | 2017-04-12 | 2017-04-12 | A kind of manufacture method of degradable PLA biological net |
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| CN106939120A true CN106939120A (en) | 2017-07-11 |
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| CN201710236044.8A Pending CN106939120A (en) | 2017-04-12 | 2017-04-12 | A kind of manufacture method of degradable PLA biological net |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610034A (en) * | 2018-10-16 | 2019-04-12 | 山东金冠网具有限公司 | A kind of degradable blinding dust-suppression net and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712805A (en) * | 2009-11-06 | 2010-05-26 | 北京化工大学 | Method for preparing degradable mulch by reusing organic waste residues of biomass |
| CN105694404A (en) * | 2016-04-25 | 2016-06-22 | 芜湖品通塑业科技有限公司 | Degradable material composition and preparation method and application of degradable plastic bag |
| CN106117622A (en) * | 2016-08-19 | 2016-11-16 | 滁州嘉实农业科技有限公司 | A kind of degradable mulch and preparation method |
-
2017
- 2017-04-12 CN CN201710236044.8A patent/CN106939120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712805A (en) * | 2009-11-06 | 2010-05-26 | 北京化工大学 | Method for preparing degradable mulch by reusing organic waste residues of biomass |
| CN105694404A (en) * | 2016-04-25 | 2016-06-22 | 芜湖品通塑业科技有限公司 | Degradable material composition and preparation method and application of degradable plastic bag |
| CN106117622A (en) * | 2016-08-19 | 2016-11-16 | 滁州嘉实农业科技有限公司 | A kind of degradable mulch and preparation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610034A (en) * | 2018-10-16 | 2019-04-12 | 山东金冠网具有限公司 | A kind of degradable blinding dust-suppression net and preparation method thereof |
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Application publication date: 20170711 |