CN107973982A - A kind of preparation method of weather-proof plastic woven-bag filament - Google Patents
A kind of preparation method of weather-proof plastic woven-bag filament Download PDFInfo
- Publication number
- CN107973982A CN107973982A CN201711210118.7A CN201711210118A CN107973982A CN 107973982 A CN107973982 A CN 107973982A CN 201711210118 A CN201711210118 A CN 201711210118A CN 107973982 A CN107973982 A CN 107973982A
- Authority
- CN
- China
- Prior art keywords
- parts
- molecular weight
- bag
- weather
- preparation
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- 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
- C08L2205/02—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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the field of material technology of Polywoven Bag, and in particular to a kind of preparation method of weather-proof plastic woven-bag filament, including raw material prepares, mixed-powder prepares and raw material melt filteration, extruding membrane, water cooling, sub-wire, wire drawing, winding.The present invention has the following advantages compared with prior art：By being matched to the raw material of different molecular weight in the present invention, help to improve the use of the physical property, wherein silane grafted polyethylene of gained woven bag, it is possible to increase the compatibility of material, to the working process of wollastonite in powder, coordinate with other raw materials, the weatherability of material can be improved, outdoors in atmospheric exposure test, physical property keeps good, it is durable with preferable inoxidizability and Sun-proof, service life length.
Description
Technical field
The invention belongs to the field of material technology of Polywoven Bag, and in particular to a kind of system of weather-proof plastic woven-bag filament
Preparation Method.
Background technology
Polywoven Bag is formed by main material is divided into Polypropylene Bag, Polythene Bag, is divided into seam bottom bag, seam by method of sewing
Side bottom bag, is now widely used for a kind of packaging material of fertilizer, chemical products and other items, its main production is to utilize modeling
Expect that the extruded film of raw material, cutting, simple tension are flat filament, by obtaining product through knitting device, be commonly referred to as woven bag, tradition
The packaging bag of the polypropylene flat-filament establishment of technology production, weatherability is poor, easily occur hardening in north of china in winter, embrittlement, demoulding,
The problems such as peeling, fracture, in south since summer temperature is high, illumination is strong, ultraviolet penetration power is strong, it is old to be easy to cause woven bag
The problems such as change, burn into poor toughness, short low service life of intensity, not only waste of resource but also polluted environment, it is therefore desirable to how to improve
The weatherability of Polywoven Bag material is studied.
The content of the invention
The purpose of the present invention is for it is existing the problem of, there is provided a kind of preparation method of weather-proof plastic woven-bag filament.
The present invention is achieved by the following technical solutions：A kind of preparation method of weather-proof plastic woven-bag filament, including
Following steps：
（1）Raw material prepares, by weight, including 48-56 parts of polypropylene, 8-12 parts of ultra-high molecular weight polyethylene, low molecular weight
1-5 parts of polyethylene, 2-4 parts of silane grafted polyethylene, 6-10 parts of wollastonite in powder, 1-2 parts of carboxymethyl chitosan, microcrystalline cellulose
1.7-2.4 parts, 0.2-0.4 parts of D2EHDTPA zinc, 6-10 parts of methyl methacrylate, 0.2-0.6 parts of bi-imidazolidinyl urea, cypress
0.2-0.8 parts oily, 0.1-0.3 parts of crosslinking agent, 0.08-0.12 parts of antioxidant, 2-4 parts of diluent；
（2）It is scattered in after wollastonite in powder and the carboxymethyl chitosan mixing in ethanol of 5 times equivalent to its gross weight, Ran Hou
Supersonic frequency is 24-28kHz, is ultrasonically treated 10-20 minutes under conditions of 52-58 DEG C of temperature, and it is small that 4-6 is stood after the completion of processing
When, it is 8-10% that mixed liquor then is concentrated into ethanol content, then adds microcrystalline cellulose and D2EHDTPA zinc, grinds 30-40
After minute, drying, crushing obtain mixed-powder；
（3）It will be added after polypropylene, ultra-high molecular weight polyethylene, low molecular weight polyethylene, silane grafted polyethylene mixed melting
Mixed-powder, methyl methacrylate, bi-imidazolidinyl urea, cedar wood oil, crosslinking agent, antioxidant, diluent, it is filtered, crowded
Product is obtained after extruding film, water cooling, sub-wire, wire drawing, winding.
As further improvement of these options, the molecular weight of the ultra-high molecular weight polyethylene is 400-600 ten thousand, institute
The molecular weight for stating low molecular weight polyethylene is 10-40 ten thousand.
As further improvement of these options, the crosslinking agent is crosslinking agent TAC, and antioxidant is double Lauryl Alcohols
Any one in ester, three monooctyl esters, bi-myristoleyl, the diluent for one or both of ethylene glycol or propane diols with
Arbitrary proportion mixes.
As further improvement of these options, the water cooling temperature is 30-35 DEG C, and the drawing condition is：Wire drawing
Speed 150-170m/min, draw ratio are 4-5 times, gained flat filament are woven by 50/100mm weft densities, then with suture
Needle gage is sutured for 9-10 pins/mm, obtains woven bag.
The present invention has the following advantages compared with prior art：By matching somebody with somebody to the raw material of different molecular weight in the present invention
Than helping to improve the use of the physical property, wherein silane grafted polyethylene of gained woven bag, it is possible to increase the compatibility of material
Property, to the working process of wollastonite in powder, coordinate with other raw materials, the weatherability of material can be improved, outdoors atmospheric exposure test
In, physical property keeps good, has preferable inoxidizability and Sun-proof, durable, service life length.
Embodiment
Embodiment 1
A kind of preparation method of weather-proof plastic woven-bag filament, comprises the following steps：
（1）Raw material prepares, by weight, including 52 parts of polypropylene, 10 parts of ultra-high molecular weight polyethylene, low molecular weight polyethylene
3 parts, 3 parts of silane grafted polyethylene, 8 parts of wollastonite in powder, 1.5 parts of carboxymethyl chitosan, 2 parts of microcrystalline cellulose, D2EHDTPA zinc
0.3 part, 8 parts of methyl methacrylate, 0.4 part of bi-imidazolidinyl urea, 0.5 part of cedar wood oil, 0.2 part of crosslinking agent, antioxidant 0.1
Part, 3 parts of diluent；
（2）It is scattered in after wollastonite in powder and the carboxymethyl chitosan mixing in ethanol of 5 times equivalent to its gross weight, Ran Hou
Supersonic frequency is 26kHz, is ultrasonically treated 15 minutes under conditions of 55 DEG C of temperature, then will mixing when standing 5 is small after the completion of processing
It is 9% that liquid, which is concentrated into ethanol content, then adds microcrystalline cellulose and D2EHDTPA zinc, after grinding 35 minutes, drying, crushing
Obtain mixed-powder；
（3）It will be added after polypropylene, ultra-high molecular weight polyethylene, low molecular weight polyethylene, silane grafted polyethylene mixed melting
Mixed-powder, methyl methacrylate, bi-imidazolidinyl urea, cedar wood oil, crosslinking agent, antioxidant, diluent, it is filtered, crowded
Product is obtained after extruding film, water cooling, sub-wire, wire drawing, winding.
Wherein, the molecular weight of the ultra-high molecular weight polyethylene is 400-600 ten thousand, the molecule of the low molecular weight polyethylene
Measure as 10-40 ten thousand；The crosslinking agent is crosslinking agent TAC, and antioxidant is double Lauryl Alcohol esters, and the diluent is ethylene glycol；
Wherein, the water cooling temperature is 32 DEG C, and the drawing condition is：Drawing speed 160m/min, draw ratio are 4 times, will
Gained flat filament is woven by 50/100mm weft densities, is then sutured by 10 pins/mm of suture needle distance, obtains woven bag.
Embodiment 2
A kind of preparation method of weather-proof plastic woven-bag filament, comprises the following steps：
（1）Raw material prepares, by weight, including 48 parts of polypropylene, 12 parts of ultra-high molecular weight polyethylene, low molecular weight polyethylene
1 part, 4 parts of silane grafted polyethylene, 6 parts of wollastonite in powder, 1 part of carboxymethyl chitosan, 1.7 parts of microcrystalline cellulose, D2EHDTPA zinc
0.2 part, 10 parts of methyl methacrylate, 0.2 part of bi-imidazolidinyl urea, 0.8 part of cedar wood oil, 0.1 part of crosslinking agent, antioxidant
0.12 part, 4 parts of diluent；
（2）It is scattered in after wollastonite in powder and the carboxymethyl chitosan mixing in ethanol of 5 times equivalent to its gross weight, Ran Hou
Supersonic frequency is 28kHz, is ultrasonically treated 10 minutes under conditions of 52 DEG C of temperature, then will mixing when standing 6 is small after the completion of processing
It is 10% that liquid, which is concentrated into ethanol content, then adds microcrystalline cellulose and D2EHDTPA zinc, is ground after forty minutes, drying, crushing
Obtain mixed-powder；
（3）It will be added after polypropylene, ultra-high molecular weight polyethylene, low molecular weight polyethylene, silane grafted polyethylene mixed melting
Mixed-powder, methyl methacrylate, bi-imidazolidinyl urea, cedar wood oil, crosslinking agent, antioxidant, diluent, it is filtered, crowded
Product is obtained after extruding film, water cooling, sub-wire, wire drawing, winding.
Wherein, the molecular weight of the ultra-high molecular weight polyethylene is 400-600 ten thousand, the molecule of the low molecular weight polyethylene
Measure as 10-40 ten thousand；The crosslinking agent is crosslinking agent TAC, and antioxidant is bi-myristoleyl, and the diluent is propane diols；
Wherein, the water cooling temperature is 35 DEG C, and the drawing condition is：Drawing speed 170m/min, draw ratio are 5 times, will
Gained flat filament is woven by 50/100mm weft densities, is then sutured by 9 pins/mm of suture needle distance, obtains woven bag.
Embodiment 3
A kind of preparation method of weather-proof plastic woven-bag filament, comprises the following steps：
（1）Raw material prepares, by weight, including 56 parts of polypropylene, 8 parts of ultra-high molecular weight polyethylene, low molecular weight polyethylene 5
Part, 2 parts of silane grafted polyethylene, 10 parts of wollastonite in powder, 2 parts of carboxymethyl chitosan, 2.4 parts of microcrystalline cellulose, D2EHDTPA zinc
0.4 part, 6 parts of methyl methacrylate, 0.6 part of bi-imidazolidinyl urea, 0.2 part of cedar wood oil, 0.3 part of crosslinking agent, antioxidant
0.08 part, 2 parts of diluent；
（2）It is scattered in after wollastonite in powder and the carboxymethyl chitosan mixing in ethanol of 5 times equivalent to its gross weight, Ran Hou
Supersonic frequency is 24kHz, is ultrasonically treated 20 minutes under conditions of 58 DEG C of temperature, then will mixing when standing 4 is small after the completion of processing
It is 8% that liquid, which is concentrated into ethanol content, then adds microcrystalline cellulose and D2EHDTPA zinc, after grinding 30 minutes, drying, crushing
Obtain mixed-powder；
（3）It will be added after polypropylene, ultra-high molecular weight polyethylene, low molecular weight polyethylene, silane grafted polyethylene mixed melting
Mixed-powder, methyl methacrylate, bi-imidazolidinyl urea, cedar wood oil, crosslinking agent, antioxidant, diluent, it is filtered, crowded
Product is obtained after extruding film, water cooling, sub-wire, wire drawing, winding.
Wherein, the molecular weight of the ultra-high molecular weight polyethylene is 400-600 ten thousand, the molecule of the low molecular weight polyethylene
Measure as 10-40 ten thousand；The crosslinking agent is crosslinking agent TAC, and antioxidant is three monooctyl esters, and the diluent is ethylene glycol and propane diols
With volume ratio 3:1 mixing；
Wherein, the water cooling temperature is 30 DEG C, and the drawing condition is：Drawing speed 150m/min, draw ratio are 4 times, will
Gained flat filament is woven by 50/100mm weft densities, is then sutured by 10 pins/mm of suture needle distance, obtains woven bag.
Control group 1 is set, silane grafted polyethylene in embodiment 1 is removed, remaining content is constant；Control group 2 is set, will
Middle step in embodiment 1（2）Remove, remaining content is constant；
Performance detection is carried out to above-mentioned each group products made thereby, wherein exposure test is outdoors through 2 years exposures, it is broken
Intensity and elongation at break are detected, and obtain its conservation rate, obtain following result：
Table 1
| Group | Fracture strength（N/50mm） | Elongation（%） | Rupture strength retention（%） | Percent retention of elongation（%） |
| Embodiment 1 | 784 | 31.8 | 85.3 | 82.6 |
| Embodiment 2 | 792 | 30.5 | 84.7 | 81.5 |
| Embodiment 3 | 786 | 31.4 | 85.2 | 82.3 |
| Control group 1 | 735 | 19.2 | 76.9 | 74.8 |
| Control group 2 | 769 | 25.7 | 65.3 | 61.9 |
Rational proportion and processing of the method to raw material in the present invention are can be seen that by data in table 1, improves the physics of product
Performance and weatherability, benefit are obvious.
Claims (5)
1. a kind of preparation method of weather-proof plastic woven-bag filament, it is characterised in that comprise the following steps：
（1）Raw material prepares, by weight, including 48-56 parts of polypropylene, 8-12 parts of ultra-high molecular weight polyethylene, low molecular weight
1-5 parts of polyethylene, 2-4 parts of silane grafted polyethylene, 6-10 parts of wollastonite in powder, 1-2 parts of carboxymethyl chitosan, microcrystalline cellulose
1.7-2.4 parts, 0.2-0.4 parts of D2EHDTPA zinc, 6-10 parts of methyl methacrylate, 0.2-0.6 parts of bi-imidazolidinyl urea, cypress
0.2-0.8 parts oily, 0.1-0.3 parts of crosslinking agent, 0.08-0.12 parts of antioxidant, 2-4 parts of diluent；
（2）It is scattered in after wollastonite in powder and the carboxymethyl chitosan mixing in ethanol of 5 times equivalent to its gross weight, Ran Hou
Supersonic frequency is 24-28kHz, is ultrasonically treated 10-20 minutes under conditions of 52-58 DEG C of temperature, and it is small that 4-6 is stood after the completion of processing
When, it is 8-10% that mixed liquor then is concentrated into ethanol content, then adds microcrystalline cellulose and D2EHDTPA zinc, grinds 30-40
After minute, drying, crushing obtain mixed-powder；
（3）It will be added after polypropylene, ultra-high molecular weight polyethylene, low molecular weight polyethylene, silane grafted polyethylene mixed melting
Mixed-powder, methyl methacrylate, bi-imidazolidinyl urea, cedar wood oil, crosslinking agent, antioxidant, diluent, it is filtered, crowded
Product is obtained after extruding film, water cooling, sub-wire, wire drawing, winding.
A kind of 2. preparation method of weather-proof plastic woven-bag filament as claimed in claim 1, it is characterised in that the supra polymer
The molecular weight of weight northylen is 400-600 ten thousand, and the molecular weight of the low molecular weight polyethylene is 10-40 ten thousand.
3. a kind of preparation method of weather-proof plastic woven-bag filament as claimed in claim 1, it is characterised in that the crosslinking agent is
Crosslinking agent TAC, antioxidant are any one in double Lauryl Alcohol esters, three monooctyl esters, bi-myristoleyl, and the diluent is
One or both of ethylene glycol or propane diols are mixed with arbitrary proportion.
A kind of 4. preparation method of weather-proof plastic woven-bag filament as claimed in claim 1, it is characterised in that the water cooling temperature
For 30-35 DEG C.
A kind of 5. preparation method of weather-proof plastic woven-bag filament as claimed in claim 1, it is characterised in that the drawing condition
For：Drawing speed 150-170m/min, draw ratio are 4-5 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210118.7A CN107973982A (en) | 2017-11-28 | 2017-11-28 | A kind of preparation method of weather-proof plastic woven-bag filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210118.7A CN107973982A (en) | 2017-11-28 | 2017-11-28 | A kind of preparation method of weather-proof plastic woven-bag filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107973982A true CN107973982A (en) | 2018-05-01 |
Family
ID=62011979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210118.7A Pending CN107973982A (en) | 2017-11-28 | 2017-11-28 | A kind of preparation method of weather-proof plastic woven-bag filament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107973982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540708A (en) * | 2019-09-18 | 2019-12-06 | 枣阳市东航塑编彩印有限公司 | Preparation method of woven bag flat filament with high stability |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311387A (en) * | 2007-05-21 | 2008-11-26 | 高华 | Production process of high-strength and ageing resistance polypropylene flat yarn |
| CN103739934A (en) * | 2013-11-25 | 2014-04-23 | 吴江市董鑫塑料包装厂 | Polypropylene woven bag |
| CN106700259A (en) * | 2016-12-30 | 2017-05-24 | 德清华梦木制品有限公司 | Production method of packaging bag flat filaments |
-
2017
- 2017-11-28 CN CN201711210118.7A patent/CN107973982A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311387A (en) * | 2007-05-21 | 2008-11-26 | 高华 | Production process of high-strength and ageing resistance polypropylene flat yarn |
| CN103739934A (en) * | 2013-11-25 | 2014-04-23 | 吴江市董鑫塑料包装厂 | Polypropylene woven bag |
| CN106700259A (en) * | 2016-12-30 | 2017-05-24 | 德清华梦木制品有限公司 | Production method of packaging bag flat filaments |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110540708A (en) * | 2019-09-18 | 2019-12-06 | 枣阳市东航塑编彩印有限公司 | Preparation method of woven bag flat filament with high stability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104372433B (en) | The preparation method of sun-proof woven bag flat filament and woven bag and product | |
| CN103265730A (en) | Degradable film containing starch and preparation method of degradable film | |
| EP2080824A4 (en) | A process for producing fiber of ultra high molecular weight polyethylene | |
| CN108948698A (en) | A kind of novel extrusion molding expanded polylactic acid sheet production technology | |
| CN112300542A (en) | Nanoscale plant fiber modified biodegradable composite material and preparation method and application thereof | |
| CN104479201A (en) | Degradable medical film and preparation method thereof | |
| CN104788814A (en) | Polypropylene woven bag and preparation method thereof | |
| CN105733220B (en) | Biodegradable plastic containing biogas residue and preparation method thereof | |
| CN107973982A (en) | A kind of preparation method of weather-proof plastic woven-bag filament | |
| CN105670072A (en) | Production method of degradable plastic woven bag | |
| CN101152639B (en) | Micropore infiltrating tube manufacture method and product therefor | |
| CN102558655B (en) | Modified master batch special for drip irrigation belts and preparing method thereof | |
| CN103374173A (en) | Durable mulching film | |
| CN102108146B (en) | Polyolefin thermoplastic elastomer (TPE) composition and preparation method thereof | |
| CN112063126B (en) | Completely biodegradable starch composite mulching film and preparation method thereof | |
| CN102115549A (en) | Biodegradable starch-containing high polymer composition and preparation thereof | |
| CN108034210A (en) | A kind of flexibilized grade agricultural film composite material and preparation method thereof | |
| CN105504446B (en) | Foaming master batch, incrassation type plastic film and corresponding manufacturing method | |
| CN107287680A (en) | A kind of fishing net with good tensile strength | |
| CN104262783B (en) | A kind of low abnormal smells from the patient mineral-reinforced polypropylene composite material and preparation method thereof | |
| CN102582085B (en) | Polyethylene self-reinforced composite material and preparation method thereof | |
| CN102329446A (en) | Transparent starch-based degradable agricultural mulching film composite material | |
| Senna et al. | Characterization of plasticized maize starch/chitosan blends irradiated with an electron beam | |
| CN109369967A (en) | A kind of degradable films and preparation method | |
| CN108841190A (en) | A kind of preparation method of degradable plastic film |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |