CN108411396A - Degradable silk and its production method - Google Patents
Degradable silk and its production method Download PDFInfo
- Publication number
- CN108411396A CN108411396A CN201810276667.2A CN201810276667A CN108411396A CN 108411396 A CN108411396 A CN 108411396A CN 201810276667 A CN201810276667 A CN 201810276667A CN 108411396 A CN108411396 A CN 108411396A
- Authority
- CN
- China
- Prior art keywords
- polyesteramide
- monofilament
- degradable silk
- degradable
- silk
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
- D01F4/02—Monocomponent artificial filaments or the like of proteins; Manufacture thereof from fibroin
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses degradable silk and its production method, a diameter of 0.03~2.1mm of the polyesteramide monofilament, fracture strength is more than 4.3CN/dtex, elongation at break is 23%~37%, palliating degradation degree (soil moisture 48.7%, 29 DEG C of temperature, 31 days, degradation rate >=2.7%)；Above-mentioned polyesteramide monofilament is prepared via a method which：Polyesteramide resin is mixed with additive, is squeezed out through screw rod melt extruder, the melt of extrusion is cooled down using water-cooling pattern, obtains spun filament, spun filament is stretched through superheated water successively, hot wind stretches and heat setting step obtains degradable silk.The degradable silk of the present invention has the characteristics that high-strength and high ductility, and preparation process is simple, at low cost, is suitable for the related fields such as fishery, agricultural net.
Description
Technical field
The present invention relates to polymer filaments, and in particular to degradable silk and the method for producing the monofilament.
Background technology
In general, fishing line, fishing net, agricultural net etc. are excellent using processability, intensity, durability, heat resistance etc.
The synthetic fibers such as polyamide monofilament, but such synthetic fibers can cause tight due to not having decomposability in a natural environment
The problems such as marine pollution of weight.Most of natural fiber has biodegradability, but can not show fishing line, fishing net, agricultural
With the high performance such as high intensity required by net etc..
Polyesteramide combines the advantages of polyester and polyamide, not only has biological degradability, but also with high-strength, heat-resisting etc. excellent
Different physical and mechanical property.But polyesteramide is manufactured into monofilament and needs, by polyesteramide melt spinning, then to stretch, at present
Also be difficult to be fully improved by this method the monofilament of mechanical strength.It is when the polyamide segment design of polyester-amide copolymer
The lossless biological degradability with the copolymer, chain length will shorten.Therefore, polyester-amide copolymer is compared with polyamide homopolymer
It is that crystallinity is low, be also difficult to happen oriented crystalline or crystallization rate is slow.Therefore, although can make to obtain by chilling non-
Crystallinity stretches for drawn yarn, but the orientation in noncrystalline portion can not be made fully to be fixed up, and never can't improve enough mechanical strong
Degree.
It not yet uses polyesteramide for raw material at present, carries out the report that melt spinning prepares major diameter monofilament.
Invention content
The technical problem to be solved in the present invention is to provide degradable silks, have higher fracture strength and extension at break
Rate is 59.3% in soil moisture, and 28 DEG C of temperature, the time is degradation rate >=3.0% under conditions of 28 days.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
Silk contain polyesteramide containing amido bond and ester bond on the molecular backbone of 97wt%~99wt% and 2wt%~
A diameter of 0.03~2.1mm of polyesteramide monofilament described in 6wt% additives, fracture strength are more than 4.3CN/dtex, and fracture is stretched
Long rate is 23%~37%, palliating degradation degree (soil moisture 48.7%, 29 DEG C, 31 days, degradation rate >=2.7% of temperature).
Further, the polyesteramide is linear polyester amide, and molecular weight is 27000~54000.
Further, the additive is nano-titanium dioxide or Nano particles of calcium carbonate.Nanometer is added in polyesteramide
Titanium dioxide or nano-calcium carbonate have the function of activeness and quietness, improve the intensity and toughness of monofilament.
Further, the additive further includes photosensitizing agents, and quality is the 1~4% of monofilament gross mass.
Specific implementation mode
Explanation, but and the non-limiting present invention are further explained to the invention content of the present invention with reference to specific embodiment
Protection domain.
Specific embodiment
Monofilament contain polyesteramide containing amido bond and ester bond on the molecular backbone of 97wt%~99wt% and 2wt%~
A diameter of 0.03~2.1mm of polyesteramide monofilament described in 6wt% additives, fracture strength are more than 4.3CN/dtex, and fracture is stretched
Long rate is 23%~37%, palliating degradation degree (soil moisture 48.7%, 29 DEG C, 31 days, degradation rate >=2.7% of temperature)；It is described poly-
Esteramides is linear polyester amide, and molecular weight is 27000~54000；The additive is nano-titanium dioxide or nano-sized carbon
Sour calcium particle；The additive further includes photosensitizing agents, and quality is the 1~4% of monofilament gross mass.
Above-described embodiment is merely illustrative of the technical solution of the present invention, rather than is carried out to the design of the present invention and protection domain
It limits, those skilled in the art are modified or replaced equivalently technical scheme of the present invention, without departing from technology
The objective and range of scheme, should all cover in scope of the presently claimed invention.
Claims (4)
1. degradable silk, it is characterised in that：Silk, which contains, contains amido bond and ester on the molecular backbone of 97wt%~99wt%
A diameter of 0.03~2.1mm of polyesteramide monofilament, fracture strength described in the polyesteramide and 2wt%~6wt% additives of key
More than 4.3CN/dtex, elongation at break is 23%~37%, palliating degradation degree (soil moisture 48.7%, 29 DEG C of temperature, 31 days,
Degradation rate >=2.7%).
2. degradable silk according to claim 1, it is characterised in that：The polyesteramide is linear polyester amide,
Molecular weight is 27000~54000.
3. degradable silk according to claim 1, it is characterised in that：The additive is nano-titanium dioxide or nanometer
Calcium carbonate particle.
4. degradable silk according to claim 3, it is characterised in that：The additive further includes photosensitizing agents, matter
Amount is the 1~4% of monofilament gross mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276667.2A CN108411396A (en) | 2018-03-30 | 2018-03-30 | Degradable silk and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276667.2A CN108411396A (en) | 2018-03-30 | 2018-03-30 | Degradable silk and its production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108411396A true CN108411396A (en) | 2018-08-17 |
Family
ID=63134075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810276667.2A Withdrawn CN108411396A (en) | 2018-03-30 | 2018-03-30 | Degradable silk and its production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108411396A (en) |
-
2018
- 2018-03-30 CN CN201810276667.2A patent/CN108411396A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chawla | Fibrous materials | |
| Fu et al. | Animal silks: their structures, properties and artificial production | |
| Kim et al. | Effects of annealing on structure and properties of TLCP/PEN/PET ternary blend fibers | |
| CN102797050B (en) | Melt spinning method for high-strength high-modulus polyvinyl alcohol fiber | |
| CN105473659B (en) | Purposes of the polymer as the additive in polymeric matrix | |
| CN108411396A (en) | Degradable silk and its production method | |
| CN1932092A (en) | Prepn process of degradable aliphatic/aromatic copolymer fiber | |
| CN105200549A (en) | Biodegradable polymer monofilament and production method thereof | |
| JP2005299067A (en) | Polylactic acid fiber | |
| CN103757739A (en) | Biodegradable polymer monofilament and production method thereof | |
| KR101235255B1 (en) | Manufacturing method of high strength polyethylene multifilament drawn fibers containing nano silica particles | |
| CN108130612A (en) | The polymer filament and its production method of environmental protection | |
| CN106048771A (en) | Biodegradable polymer monofilaments and producing method thereof | |
| JP3599310B2 (en) | Polylactic acid monofilament and method for producing the same | |
| JP2007314899A (en) | Polylactic acid monofilament, method for producing the same, and application of the same | |
| JP2000154425A (en) | Production of biodegradable monofilament | |
| JPH1060733A (en) | Production of biodegradable monofilament | |
| JP2021130894A (en) | Nylon 4 fiber and method for producing the same | |
| JP2779972B2 (en) | Degradable fishing line and its production method | |
| JPH10110332A (en) | Biodegradable monofilament and use thereof | |
| JP2736390B2 (en) | Fishing line and its manufacturing method | |
| JP2011106060A (en) | Polyarylene sulfide fiber | |
| Li et al. | Can high-performance fibers be (come) bio-based and also biocompostable? | |
| JPH10102323A (en) | Biodegradable conjugate monofilament and its use | |
| CN103603069B (en) | A kind of low-loss high tenacity polyester fiber screen cloth monofilament and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180817 |