CN110499009A - A kind of application of degradable bracing wire basement membrane and preparation method in dismounting bracing wire - Google Patents
A kind of application of degradable bracing wire basement membrane and preparation method in dismounting bracing wire Download PDFInfo
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- CN110499009A CN110499009A CN201910788084.2A CN201910788084A CN110499009A CN 110499009 A CN110499009 A CN 110499009A CN 201910788084 A CN201910788084 A CN 201910788084A CN 110499009 A CN110499009 A CN 110499009A
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/14—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively
- B29C55/143—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial successively firstly parallel to the direction of feed and then transversely thereto
-
- 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
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- 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
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The present invention relates to the application of the degradable bracing wire basement membrane of kind and preparation method in dismounting bracing wire, each raw material component including following parts by weight, 90-110 parts of polylactic acid, 20-30 parts of hexane diacid-terephthalic acid-butylene terephthalate copolymer, -3 parts of silica 1,6-10 parts of masterbatch, additive 5-10 parts of surface layer.The invention has the advantages that bracing wire basement membrane can degrade, guarantee that unsealing pull line finished product has degradability, and the product after degradation is free from environmental pollution, nontoxic free from extraneous odour is at low cost.
Description
Technical field
The present invention relates to a kind of application of degradable bracing wire basement membrane and preparation method in dismounting bracing wire, belong to dismounting bracing wire
Field.
Background technique
BOPP film is also known as bidirectional stretching polypropylene film, is to carry out co-extrusion by a variety of polypropylene functional materials, stretch
Molding.Conventional unsealing pull line is that BOPP, PET is used to process from strand as basement membrane, present in drawback be: due to by group
Dividing is influenced, and not degradable, to environment, there are certain influences.
Summary of the invention
To overcome the shortcomings of existing technologies, the present invention provides a kind of degradable bracing wire basement membrane and preparation method in dismounting bracing wire
In application, the technical scheme is that
A kind of degradable bracing wire basement membrane, each raw material component including following parts by weight, 90-110 parts of polylactic acid, adipic acid-is to benzene
Dioctyl phthalate -20-30 parts of butanediol ester copolymer, -3 parts of silica 1,6-10 parts of masterbatch, additive 5-10 parts of surface layer, this can be dropped
Solve the preparation method of bracing wire basement membrane, comprising the following steps:
(1) each raw material is weighed according to the proportion, and is sufficiently mixed；
(2) uniformly mixed material is added in the feed opening of screw extruder, using screw extruder to mixed material into
It is squeezed out after the plasticizing of row heating melting；
(3) mixed material forms melt after melting, and melt is successively passed through coarse filter and fine filter, then again by another
It is squeezed out after one screw extruder, obtains sheet through 25~28 DEG C of cold drum cooling, sheet is removed from cold drum, by the thickness of removing
Piece obtains slab after tension control roll and calibrator；
(4) it stretches: slab merging longitudinal stretching machine being subjected to longitudinal stretching and forms film, the temperature of longitudinal stretching is 100~120
DEG C, longitudinal thermal finalization is carried out in sizing roller surface by the film of longitudinal stretching, the film longitudinal stretching ratio of formation is 1~2 times；
Film enters transverse drawing mill after longitudinal stretching, is clamped on transverse drawing mill inlet film both sides by chain folder, and chain folder is drawn thin
Film moves forwards, and broadens in drawing zone chain folder width, and film is made to carry out cross directional stretch, and temperature stretching in the transverse direction is 100~120
DEG C, the film cross directional stretch ratio of formation is 2~4 times, and the film after stretching carries out lateral thermal finalization by setting roll, is then carried out
After cooling, static elimination processing is carried out after cooling；
(5) sided corona treatment: using pre- hot-rolling, by static elimination, treated after film is preheating to 40 DEG C, be sent into corona unit into
Row sided corona treatment 15-30min, wherein the gap between electrode and film is 0.2~0.4mm；
(6) film take-up after sided corona treatment is formed into film roll using winder；
(7) ageing treatment: film roll being put into ageing treatment frame and carries out ageing treatment, and temperature is maintained at 30~35 DEG C, and humidity exists
50~60%, the time is 24~40h；
(8) film roll handled well finished product: is subjected to cutting packaging, as finished product.
100 parts of the polylactic acid, it is 22 parts of hexane diacid-terephthalic acid-butylene terephthalate copolymer, 2 parts of silica, female
8 parts, 6 parts of surface layer additive of material.
The surface layer additive includes slipping agent and antistatic agent, 10 ~ 15 parts of the antistatic agent, slipping agent 1 ~ 3
Part.
The slipping agent be erucyl amide, oleamide, stearic amide, behenic acid amide, oleoyl palmitamide,
The double oleamide of ethylene bis stearic acid amide, stearic acid stearmide, stearic acid erucyl amide, ethylene, polyamide wax, silicone oil,
Silicone, stearic acid, stearyl alcohol, pentaerythritol stearate, montanin wax, polyethylene wax, polypropylene wax, paraffin or oxidic polyethylene
The mixture that wherein one or more in wax is formed according to any proportion.
The antistatic agent is monoglyceride, ethoxylated amine, biphosphate stearoyl amino dimethyl beta-ethoxy salt, N-
Wherein one or more in (3- alkoxy -2- hydroxypropyl) monoethanolamine or octadecyldiethanol amine is according to any
Match the mixture of composition.
The masterbatch includes the calcium carbonate and titanium oxide mixed according to arbitrary proportion.
The winder is that double-station turns round winder.
A kind of preparation method of degradable bracing wire basement membrane, the degradable bracing wire basement membrane of preparation method preparation is in unsealing pull line
In application
The invention has the advantages that bracing wire basement membrane can degrade, guarantee that unsealing pull line finished product has degradability, and after degradation
Product is free from environmental pollution, nontoxic free from extraneous odour, at low cost.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent.But examples are merely exemplary for these, and it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
Embodiment 1: a kind of degradable bracing wire basement membrane, each raw material component including following parts by weight, 90 parts of polylactic acid, oneself two
Acid-terephthalic acid (TPA) -20 parts of butanediol ester copolymer, silica 1 part, 6 parts of masterbatch, 5 parts of surface layer additive, the degradable drawing
The preparation method of line basement membrane, comprising the following steps:
(1) each raw material is weighed according to the proportion, and is sufficiently mixed；
(2) uniformly mixed material is added in the feed opening of screw extruder, using screw extruder to mixed material into
It is squeezed out after the plasticizing of row heating melting；
(3) mixed material forms melt after melting, and melt is successively passed through coarse filter and fine filter, then again by another
It is squeezed out after one screw extruder, obtains sheet through 25 DEG C of cold drum cooling, sheet is removed from cold drum, the sheet of removing is passed through
Slab is obtained after overtension control roller and calibrator；
(4) it stretches: slab merging longitudinal stretching machine being subjected to longitudinal stretching and forms film, the temperature of longitudinal stretching is 100 DEG C, warp
The film for crossing longitudinal stretching carries out longitudinal thermal finalization in sizing roller surface, and the film longitudinal stretching ratio of formation is 1 times；Film is through vertical
Enter transverse drawing mill after to stretching, clamped on transverse drawing mill inlet film both sides by chain folder, chain folder draws film to transport forward
Row, broadens in drawing zone chain folder width, and film is made to carry out cross directional stretch, and temperature stretching in the transverse direction is 100 DEG C, and the film of formation is horizontal
It is 2 times to draw ratio, the film after stretching carries out lateral thermal finalization by setting roll, after then carrying out cooling, carries out after cooling
Static elimination processing；
(5) sided corona treatment: using pre- hot-rolling, by static elimination, treated after film is preheating to 40 DEG C, be sent into corona unit into
Row sided corona treatment 15min, wherein the gap between electrode and film is 0.2mm；
(6) film take-up after sided corona treatment is formed into film roll using winder；
(7) ageing treatment: film roll being put into ageing treatment frame and carries out ageing treatment, and temperature is maintained at 30 DEG C, humidity 50%,
Time is for 24 hours；
(8) film roll handled well finished product: is subjected to cutting packaging, as finished product.
The surface layer additive includes slipping agent and antistatic agent, 10 parts of the antistatic agent, and 1 part of slipping agent.
The slipping agent be erucyl amide, oleamide, stearic amide, behenic acid amide, oleoyl palmitamide,
The double oleamide of ethylene bis stearic acid amide, stearic acid stearmide, stearic acid erucyl amide, ethylene, polyamide wax, silicone oil,
Silicone, stearic acid, stearyl alcohol, pentaerythritol stearate, montanin wax, polyethylene wax, polypropylene wax, paraffin or oxidic polyethylene
The mixture that wherein one or more in wax is formed according to any proportion.
The antistatic agent is monoglyceride, ethoxylated amine, biphosphate stearoyl amino dimethyl beta-ethoxy salt, N-
Wherein one or more in (3- alkoxy -2- hydroxypropyl) monoethanolamine or octadecyldiethanol amine is according to any
Match the mixture of composition.
The masterbatch includes the calcium carbonate and titanium oxide mixed according to arbitrary proportion.
The winder is that double-station turns round winder.
A kind of preparation method of degradable bracing wire basement membrane, the degradable bracing wire basement membrane of preparation method preparation is in unsealing pull line
In application.
Rebound degree >=700% of bracing wire film；Light transmission rate >=98；Longitudinal tensile strength >=100Mpa, transverse tensile strength
>=200Mpa shows excellent toughness；Degree of degradation of the bracing wire basement membrane in 20 days is greater than 15%.
Embodiment 2: a kind of degradable bracing wire basement membrane, each raw material component including following parts by weight, 100 parts of polylactic acid,
22 parts of hexane diacid-terephthalic acid-butylene terephthalate copolymer, 2 parts of silica, 8 parts of masterbatch, 6 parts of surface layer additive.This can be dropped
Solve the preparation method of bracing wire basement membrane, comprising the following steps:
(1) each raw material is weighed according to the proportion, and is sufficiently mixed；
(2) uniformly mixed material is added in the feed opening of screw extruder, using screw extruder to mixed material into
It is squeezed out after the plasticizing of row heating melting；
(3) mixed material forms melt after melting, and melt is successively passed through coarse filter and fine filter, then again by another
It is squeezed out after one screw extruder, obtains sheet through 26 DEG C of cold drum cooling, sheet is removed from cold drum, the sheet of removing is passed through
Slab is obtained after overtension control roller and calibrator；
(4) it stretches: slab merging longitudinal stretching machine being subjected to longitudinal stretching and forms film, the temperature of longitudinal stretching is 110 DEG C, warp
The film for crossing longitudinal stretching carries out longitudinal thermal finalization in sizing roller surface, and the film longitudinal stretching ratio of formation is 2 times；Film is through vertical
Enter transverse drawing mill after to stretching, clamped on transverse drawing mill inlet film both sides by chain folder, chain folder draws film to transport forward
Row, broadens in drawing zone chain folder width, and film is made to carry out cross directional stretch, and temperature stretching in the transverse direction is 110 DEG C, and the film of formation is horizontal
It is 3 times to draw ratio, the film after stretching carries out lateral thermal finalization by setting roll, after then carrying out cooling, carries out after cooling
Static elimination processing；
(5) sided corona treatment: using pre- hot-rolling, by static elimination, treated after film is preheating to 40 DEG C, be sent into corona unit into
Row sided corona treatment 20min, wherein the gap between electrode and film is 0.3mm；
(6) film take-up after sided corona treatment is formed into film roll using winder；
(7) ageing treatment: film roll being put into ageing treatment frame and carries out ageing treatment, and temperature is maintained at 32 DEG C, humidity 55%,
Time is 36h；
(8) film roll handled well finished product: is subjected to cutting packaging, as finished product.
The surface layer additive includes slipping agent and antistatic agent, 12 parts of the antistatic agent, and 2 parts of slipping agent.
The slipping agent be erucyl amide, oleamide, stearic amide, behenic acid amide, oleoyl palmitamide,
The double oleamide of ethylene bis stearic acid amide, stearic acid stearmide, stearic acid erucyl amide, ethylene, polyamide wax, silicone oil,
Silicone, stearic acid, stearyl alcohol, pentaerythritol stearate, montanin wax, polyethylene wax, polypropylene wax, paraffin or oxidic polyethylene
The mixture that wherein one or more in wax is formed according to any proportion.
The antistatic agent is monoglyceride, ethoxylated amine, biphosphate stearoyl amino dimethyl beta-ethoxy salt, N-
Wherein one or more in (3- alkoxy -2- hydroxypropyl) monoethanolamine or octadecyldiethanol amine is according to any
Match the mixture of composition.
The masterbatch includes the calcium carbonate and titanium oxide mixed according to arbitrary proportion.
The winder is that double-station turns round winder.
A kind of preparation method of degradable bracing wire basement membrane, the degradable bracing wire basement membrane of preparation method preparation is in unsealing pull line
In application.
Rebound degree >=600% of bracing wire film；Light transmission rate >=95；Longitudinal tensile strength >=103Mpa, transverse tensile strength
>=210Mpa shows excellent toughness；Degree of degradation of the bracing wire basement membrane in 20 days is greater than 16%.
Embodiment 3: a kind of degradable bracing wire basement membrane, each raw material component including following parts by weight, 110 parts of polylactic acid, oneself
Diacid-terephthalic acid (TPA) -30 parts of butanediol ester copolymer, 3 parts of silica, 10 parts of masterbatch, 10 parts of surface layer additive, this can be dropped
Solve the preparation method of bracing wire basement membrane, comprising the following steps:
(1) each raw material is weighed according to the proportion, and is sufficiently mixed；
(2) uniformly mixed material is added in the feed opening of screw extruder, using screw extruder to mixed material into
It is squeezed out after the plasticizing of row heating melting；
(3) mixed material forms melt after melting, and melt is successively passed through coarse filter and fine filter, then again by another
It is squeezed out after one screw extruder, obtains sheet through 28 DEG C of cold drum cooling, sheet is removed from cold drum, the sheet of removing is passed through
Slab is obtained after overtension control roller and calibrator；
(4) it stretches: slab merging longitudinal stretching machine being subjected to longitudinal stretching and forms film, the temperature of longitudinal stretching is 120 DEG C, warp
The film for crossing longitudinal stretching carries out longitudinal thermal finalization in sizing roller surface, and the film longitudinal stretching ratio of formation is 2 times；Film is through vertical
Enter transverse drawing mill after to stretching, clamped on transverse drawing mill inlet film both sides by chain folder, chain folder draws film to transport forward
Row, broadens in drawing zone chain folder width, and film is made to carry out cross directional stretch, and temperature stretching in the transverse direction is 120 DEG C, and the film of formation is horizontal
It is 4 times to draw ratio, the film after stretching carries out lateral thermal finalization by setting roll, after then carrying out cooling, carries out after cooling
Static elimination processing；
(5) sided corona treatment: using pre- hot-rolling, by static elimination, treated after film is preheating to 40 DEG C, be sent into corona unit into
Row sided corona treatment 30min, wherein the gap between electrode and film is 0.4mm；
(6) film take-up after sided corona treatment is formed into film roll using winder；
(7) ageing treatment: film roll being put into ageing treatment frame and carries out ageing treatment, and temperature is maintained at 35 DEG C, humidity 60%,
Time is 40h；
(8) film roll handled well finished product: is subjected to cutting packaging, as finished product.
The surface layer additive includes slipping agent and antistatic agent, 15 parts of the antistatic agent, and 3 parts of slipping agent.
The slipping agent be erucyl amide, oleamide, stearic amide, behenic acid amide, oleoyl palmitamide,
The double oleamide of ethylene bis stearic acid amide, stearic acid stearmide, stearic acid erucyl amide, ethylene, polyamide wax, silicone oil,
Silicone, stearic acid, stearyl alcohol, pentaerythritol stearate, montanin wax, polyethylene wax, polypropylene wax, paraffin or oxidic polyethylene
The mixture that wherein one or more in wax is formed according to any proportion.
The antistatic agent is monoglyceride, ethoxylated amine, biphosphate stearoyl amino dimethyl beta-ethoxy salt, N-
Wherein one or more in (3- alkoxy -2- hydroxypropyl) monoethanolamine or octadecyldiethanol amine is according to any
Match the mixture of composition.
The masterbatch includes the calcium carbonate and titanium oxide mixed according to arbitrary proportion.
The winder is that double-station turns round winder.
A kind of preparation method of degradable bracing wire basement membrane, the degradable bracing wire basement membrane of preparation method preparation is in unsealing pull line
In application.
Rebound degree >=650% of bracing wire film；Light transmission rate >=95；Longitudinal tensile strength >=108Mpa, transverse tensile strength
>=150Mpa shows excellent toughness；Degree of degradation of the bracing wire basement membrane in 20 days is greater than 18%.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, and
Without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Therefore,
In all respects, the present embodiments are to be considered as illustrative and not restrictive, the scope of the present invention is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes be included within the present invention.
Claims (8)
1. a kind of degradable bracing wire basement membrane, which is characterized in that each raw material component including following parts by weight, polylactic acid 90-110
Part, 20-30 parts of hexane diacid-terephthalic acid-butylene terephthalate copolymer, -3 parts of silica 1,6-10 parts of masterbatch, surface layer addition
5-10 parts of agent, the preparation method of the degradable bracing wire basement membrane, comprising the following steps:
(1) each raw material is weighed according to the proportion, and is sufficiently mixed；
(2) uniformly mixed material is added in the feed opening of screw extruder, using screw extruder to mixed material into
It is squeezed out after the plasticizing of row heating melting；
(3) mixed material forms melt after melting, and melt is successively passed through coarse filter and fine filter, then again by another
It is squeezed out after one screw extruder, obtains sheet through 25~28 DEG C of cold drum cooling, sheet is removed from cold drum, by the thickness of removing
Piece obtains slab after tension control roll and calibrator；
(4) it stretches: slab merging longitudinal stretching machine being subjected to longitudinal stretching and forms film, the temperature of longitudinal stretching is 100~120
DEG C, longitudinal thermal finalization is carried out in sizing roller surface by the film of longitudinal stretching, the film longitudinal stretching ratio of formation is 1~2 times；
Film enters transverse drawing mill after longitudinal stretching, is clamped on transverse drawing mill inlet film both sides by chain folder, and chain folder is drawn thin
Film moves forwards, and broadens in drawing zone chain folder width, and film is made to carry out cross directional stretch, and temperature stretching in the transverse direction is 100~120
DEG C, the film cross directional stretch ratio of formation is 2~4 times, and the film after stretching carries out lateral thermal finalization by setting roll, is then carried out
After cooling, static elimination processing is carried out after cooling；
(5) sided corona treatment: using pre- hot-rolling, by static elimination, treated after film is preheating to 40 DEG C, be sent into corona unit into
Row sided corona treatment 15-30min, wherein the gap between electrode and film is 0.2~0.4mm；
(6) film take-up after sided corona treatment is formed into film roll using winder；
(7) ageing treatment: film roll being put into ageing treatment frame and carries out ageing treatment, and temperature is maintained at 30~35 DEG C, and humidity exists
50~60%, the time is 24~40h；
(8) film roll handled well finished product: is subjected to cutting packaging, as finished product.
2. a kind of degradable bracing wire basement membrane according to claim 1, which is characterized in that 100 parts of the polylactic acid, oneself two
Acid-terephthalic acid (TPA) -22 parts of butanediol ester copolymer, 2 parts of silica, 8 parts of masterbatch, 6 parts of surface layer additive.
3. a kind of degradable bracing wire basement membrane according to claim 1 or 2, which is characterized in that the surface layer additive packet
Include slipping agent and antistatic agent, 10 ~ 15 parts of the antistatic agent, 1 ~ 3 part of slipping agent.
4. a kind of degradable bracing wire basement membrane according to claim 3, which is characterized in that the slipping agent be erucyl amide,
Oleamide, stearic amide, behenic acid amide, oleoyl palmitamide, ethylene bis stearic acid amide, stearic acid stearoyl
The double oleamides of amine, stearic acid erucyl amide, ethylene, polyamide wax, silicone oil, silicone, stearic acid, stearyl alcohol, pentaerythrite are hard
Wherein one or more in resin acid ester, montanin wax, polyethylene wax, polypropylene wax, paraffin or oxidized polyethylene wax according to
The mixture of any proportion composition.
5. a kind of degradable bracing wire basement membrane according to claim 3, which is characterized in that the antistatic agent be monoglyceride,
Ethoxylated amine, biphosphate stearoyl amino dimethyl beta-ethoxy salt, N-(3- alkoxy -2- hydroxypropyl) monoethanolamine or
The mixture that wherein one or more in octadecyldiethanol amine is formed according to any proportion.
6. a kind of degradable bracing wire basement membrane according to claim 3, which is characterized in that the masterbatch includes according to any
The calcium carbonate and titanium oxide that ratio mixes.
7. a kind of degradable bracing wire basement membrane according to claim 1, which is characterized in that the winder is double-station revolution
Winder.
8. a kind of preparation method of degradable bracing wire basement membrane, which is characterized in that the degradable bracing wire basement membrane of preparation method preparation
Application in unsealing pull line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788084.2A CN110499009A (en) | 2019-08-26 | 2019-08-26 | A kind of application of degradable bracing wire basement membrane and preparation method in dismounting bracing wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910788084.2A CN110499009A (en) | 2019-08-26 | 2019-08-26 | A kind of application of degradable bracing wire basement membrane and preparation method in dismounting bracing wire |
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| CN110499009A true CN110499009A (en) | 2019-11-26 |
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| CN201910788084.2A Pending CN110499009A (en) | 2019-08-26 | 2019-08-26 | A kind of application of degradable bracing wire basement membrane and preparation method in dismounting bracing wire |
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| Country | Link |
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| CN (1) | CN110499009A (en) |
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| CN105690784A (en) * | 2016-01-28 | 2016-06-22 | 海宁长昆包装有限公司 | Manufacturing process for high-tension dual-plasticizing-formed BOPP thin film |
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Application publication date: 20191126 |