CN110184854A - A kind of PLA leaching membrane paper and preparation method thereof - Google Patents
A kind of PLA leaching membrane paper and preparation method thereof Download PDFInfo
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- CN110184854A CN110184854A CN201910478451.9A CN201910478451A CN110184854A CN 110184854 A CN110184854 A CN 110184854A CN 201910478451 A CN201910478451 A CN 201910478451A CN 110184854 A CN110184854 A CN 110184854A
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- Prior art keywords
- leaching membrane
- pla
- paper
- adhesive layer
- lamination
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
- C09J167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/64—Addition to the formed paper by contacting paper with a device carrying the material the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The present invention relates to a kind of PLA leaching membrane paper and preparation method thereof, PLA leaching membrane paper includes body paper and PLA leaching membrane layer, is provided with adhesive layer between the body paper and PLA leaching membrane layer;The adhesive layer with a thickness of 0.020-0.025mm;The PLA leaching membrane layer with a thickness of 0.010-0.015mm;The adhesive layer binding liquid, which is covered on body paper, to be solidified, and the binding liquid is mixed by following component melts according to parts by weight: 35-45 parts of polylactic acid, 15-20 parts of polycaprolactone, 55-60 parts of poly butylene succinate;The molecular weight of polylactic acid in the binding liquid is 50000-100000;The PLA leaching membrane layer is formed in adhesive layer far from the one side lamination of body paper by polylactic acid and the molecular weight of polylactic acid is 200000-300000.The each component of adhesive layer is biodegradable, does not influence the degradable performance of PLA leaching membrane paper.The toughness of the adhesive layer Binder Phase between body paper larger with respect to the toughness of PLA leaching membrane layer is to secured.Polylactic acid component in the component of adhesive layer increases adhesive layer and PLA leaching membrane layer compatibility, conducive to PLA layers and the bonding of adhesive layer.
Description
Technical field
The present invention relates to leaching membrane paper technical fields more particularly to a kind of PLA leaching membrane paper and preparation method thereof.
Background technique
Polylactic acid (PLA) is a kind of novel biology base and recyclable organism degradable material, is provided using reproducible plant
Source (such as corn, cassava) extracted starch raw material is made.Starch raw material obtains glucose through saccharification, then by glucose and one
High-pure lactic acid is made in fixed strain fermentation, then the polylactic acid of certain molecular weight is synthesized by chemical synthesis process.It is with good
Good biodegradability, can be degradable under given conditions by microorganism in nature after use, ultimately generates titanium dioxide
Carbon and water, no pollution to the environment are generally acknowledged environment-friendly materials.
Leaching membrane paper is exactly the composite material that plastic pellet is coated in paper surface by casting machine, and being mainly characterized by can be with
It is grease proofing, waterproof (opposite), heat sealable.The leaching membrane paper station-service made of polyethylene (PE) lamination is in production disposable paper at present
The disposable tablewares such as cup, paper bowl, but PE cannot be biodegradable unfavorable to environmental protection.The PLA leaching membrane paper made of PLA lamination
Natural resources and environmental pressure can be greatly lowered relative to disposable tableware made of PE leaching membrane paper, be now subjected to vast disappear
The favor of the person of expense.But PLA, since the brittleness of itself is larger, in lamination and body paper caking property is poor, and lamination after molding
The toughness of layer is inadequate, is unfavorable for the extensive use of PLA leaching membrane paper.
Summary of the invention
The purpose of the present invention one is to provide a kind of PLA leaching membrane paper, and the caking property of leaching membrane layer and body paper is good.
Above-mentioned purpose one of the invention has the technical scheme that a kind of PLA leaching membrane paper, including body paper
With PLA leaching membrane layer, adhesive layer is provided between the body paper and PLA leaching membrane layer;The adhesive layer with a thickness of 0.020-
0.025mm;The PLA leaching membrane layer with a thickness of 0.010-0.015mm;The adhesive layer binding liquid be covered on body paper solidify and
At the binding liquid is mixed by following component melts according to parts by weight:
35-45 parts of polylactic acid
15-20 parts of polycaprolactone
55-60 parts of poly butylene succinate;
The molecular weight of polylactic acid in the binding liquid is 50000-100000;
The PLA leaching membrane layer is formed in adhesive layer far from the one side lamination of body paper by polylactic acid and the molecular weight of polylactic acid is
200000-300000。
By using above-mentioned technical proposal, increase by one layer of adhesive layer, each group of adhesive layer between PLA leaching membrane layer and body paper
It is point biodegradable, the degradable performance of PLA leaching membrane paper is not influenced.Polycaprolactone in adhesive layer is to polylactic acid and poly- fourth
Succinate adipate has plasticising and compatible role, is uniformly mixed adhesive layer each component.The toughness of adhesive layer is with respect to PLA leaching membrane layer
The larger Binder Phase between body paper of toughness to secured.The molecular weight of polylactic acid in the component of adhesive layer is relative to PLA lamination
Layer in polylactic acid molecular weight it is smaller, have preferable caking property, and with PLA leaching membrane layer compatibility, be conducive to PLA leaching membrane layer
With the bonding of adhesive layer.
The present invention is further arranged to: the molecular weight of the polycaprolactone is 1500-2000.
By using above-mentioned technical proposal, polycaprolactone drenches adhesive layer relative to PLA as toughener and plasticizer
Film layer has preferable toughness and viscosity, is firmly bonded adhesive layer and body paper.
The present invention is further arranged to: the molecular weight of the poly butylene succinate is 20000-50000.
By using above-mentioned technical proposal, having adhesive layer has biggish toughness relative to PLA leaching membrane layer, makes adhesive layer
It is firmly bonded between body paper.
The purpose of the present invention two is to provide a kind of preparation method of above-mentioned PLA leaching membrane paper.
Above-mentioned purpose two of the invention is achieved through the following technical solutions: a kind of preparation method of PLA leaching membrane paper, packet
Include following steps:
(A), by each component for preparing binding liquid, blended melting extrusion, granulation, formation bond lamination particle according to parts by weight;
(B), lamination pellet melting being bonded and carries out lamination, lamination technological temperature on body paper are as follows: organism temperature is 150-160 DEG C,
Die head temperature is 160-170 DEG C, forms bonding leaching membrane paper;
(C), by the melting of the polylactic acid of lamination PLA leaching membrane layer and to the adhesive layer of bonding leaching membrane paper far from being carried out on the side of body paper
Lamination, lamination technological temperature are as follows: organism temperature is 170-180 DEG C, and die head temperature is 180-190 DEG C.
By using above-mentioned technical proposal, by one layer of adhesive layer of lamination on body paper, in side of the adhesive layer far from body paper
Face lamination forms one layer of PLA leaching membrane layer.It is attached between PLA leaching membrane layer and body paper by adhesive layer, adhesive layer is relative to PLA
The toughness of leaching membrane layer is larger, is conducive to increase the toughness of entire leaching membrane layer and the firmness with bonding on body paper.
The present invention is further arranged to: the bonding leaching membrane paper heats before carrying out step (C), and heating temperature is
90-100℃。
By using above-mentioned technical proposal, be conducive to increase polylactic acid in the side progress lamination to adhesive layer far from body paper
During polylactic acid formed and the PLA leaching membrane layer that is connected firmly of adhesive layer.
The present invention is further arranged to: in the step (C) after polylactic acid lamination, when leaching membrane paper is cooled to 95-100 DEG C
It is pressed.
By using above-mentioned technical proposal, increase the jail of the bonding between PLA leaching membrane layer and adhesive layer, adhesive layer and body paper
Gu degree.
In conclusion advantageous effects of the invention are as follows:
1, by being provided with adhesive layer between PLA leaching membrane layer and body paper, increase the jail of the bonding between PLA leaching membrane layer and body paper
Gu degree, while the setting of adhesive layer is conducive to increase the toughness of entire leaching membrane layer, adhesive layer each component is degradable not to influence PLA leaching
The degradability of film paper;
2, by heating bonding leaching membrane paper before lamination PLA leaching membrane layer, be conducive to increase PLA leaching membrane layer and adhesive layer
Company bonding firmness;
3, by being pressed to the PLA leaching membrane paper after lamination PLA leaching membrane layer, conducive to the secured of the bonding increased between each layer
The toughness of the entire leaching membrane layer of degree and leaching membrane paper.
Specific embodiment
Invention is further described in detail below.
Embodiment 1
A kind of PLA leaching membrane paper, preparation method include the following steps:
(A), according to parts by weight by 40 parts of molecular weight be 80000 polylactic acid, 18 parts of molecular weight be 1500 polycaprolactone, 60
Part molecular weight is that poly butylene succinate is added to progress blended melting extruding pelletization in double screw extruder, forms bonding and drenches
Peplomer;
Wherein, double screw extruder uses SET-100 model, squeezes out four sections of technological temperature and is respectively as follows: 80-90 DEG C, 120-130
℃,130-140℃,140-150℃;The particle size range of lamination particle is 1.5-2mm;
(B), bonding lamination particle is added in laminating machine on body paper and carries out lamination, the limited public affairs of share are automated using Ding Feng
Take charge of the single side laminating machine of production, lamination technological temperature are as follows: organism temperature is 150-160 DEG C, and die head temperature is 160-170 DEG C, shape
At bonding leaching membrane paper;
Wherein, body paper is with a thickness of 0.4mm, adhesive layer with a thickness of 0.025mm;
(C), the polylactic acid that molecular weight is 250000 is added in laminating machine to the adhesive layer of bonding leaching membrane paper far from body paper
Lamination is carried out on side, using the single side laminating machine of Ding Feng automation limited liability company production, lamination technological temperature are as follows: body
Temperature is 170-180 DEG C, and die head temperature is 180-190 DEG C;
Wherein, bonding leaching membrane paper is carried out roller heating in laminating machine before polylactic acid lamination, is heated to 90-100 DEG C;PLA lamination
Layer with a thickness of 0.010mm;
After polylactic acid lamination, leaching membrane paper carries out roll press when being cooled to 95-100 DEG C.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1:
The parts by weight that polylactic acid is added in step (A) are 35 parts.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1:
The parts by weight that polylactic acid is added in step (A) are 45 parts.
Embodiment 4
Embodiment 4 is with the difference of embodiment 1:
The molecular weight that polylactic acid is added in step (A) is 50000.
Embodiment 5
Embodiment 5 is with the difference of embodiment 1:
The molecular weight that polylactic acid is added in step (A) is 100000.
Comparative example 1
Comparative example 1 is with the difference of embodiment 1:
The parts by weight that polylactic acid is added in step (A) are 0.
Comparative example 2
Comparative example 2 is with the difference of embodiment 1:
The parts by weight that polylactic acid is added in step (A) are 30.
Comparative example 3
Comparative example 3 is with the difference of embodiment 1:
The parts by weight that polylactic acid is added in step (A) are 50.
Comparative example 4
Comparative example 4 is with the difference of embodiment 1:
The molecular weight that polylactic acid is added in step (A) is 40000.
Comparative example 5
Comparative example 5 is with the difference of embodiment 1:
The molecular weight that polylactic acid is added in step (A) is 110000.
Extensibility embodies the toughness of product, and extensibility is bigger, and toughness of products is better;Above table illustrates a certain amount of poly- cream
Acid can promote the toughness of leaching membrane paper, while molecular weight also will affect the size of toughness.
Embodiment 6
Embodiment 6 the difference from embodiment 1 is that:
The parts by weight that polycaprolactone is added in step (A) are 15.
Embodiment 7
Embodiment 7 the difference from embodiment 1 is that:
The parts by weight that polycaprolactone is added in step (A) are 20.
Embodiment 8
Embodiment 8 the difference from embodiment 1 is that:
The molecular weight that polycaprolactone is added in step (A) is 1000.
Embodiment 9
Embodiment 9 the difference from embodiment 1 is that:
The molecular weight that polycaprolactone is added in step (A) is 2000.
Embodiment 10
Embodiment 10 the difference from embodiment 1 is that:
The molecular weight that polycaprolactone is added in step (A) is 2500.
Comparative example 6
Comparative example 6 the difference from embodiment 1 is that:
The parts by weight that polycaprolactone is added in step (A) are 0.
Comparative example 7
Comparative example 7 the difference from embodiment 1 is that:
The parts by weight that polycaprolactone is added in step (A) are 13.
Comparative example 8
Comparative example 8 the difference from embodiment 1 is that:
The parts by weight that polycaprolactone is added in step (A) are 22.
Above table shows: the amount and molecular weight of polycaprolactone have an impact to toughness of products.
Embodiment 11
Embodiment 11 the difference from embodiment 1 is that:
The parts by weight that poly butylene succinate is added in step (A) are 55.
Embodiment 12
Embodiment 12 the difference from embodiment 1 is that:
The molecular weight that poly butylene succinate is added in step (A) is 15000.
Embodiment 13
Embodiment 13 the difference from embodiment 1 is that:
The molecular weight that poly butylene succinate is added in step (A) is 20000.
Embodiment 14
Embodiment 14 the difference from embodiment 1 is that:
The molecular weight that poly butylene succinate is added in step (A) is 30000.
Embodiment 15
Embodiment 15 the difference from embodiment 1 is that:
The molecular weight that poly butylene succinate is added in step (A) is 50000.
Embodiment 16
Embodiment 16 the difference from embodiment 1 is that:
The molecular weight that poly butylene succinate is added in step (A) is 55000.
Comparative example 9
Comparative example 9 the difference from embodiment 1 is that:
The parts by weight that poly butylene succinate is added in step (A) are 50.
Comparative example 10
Comparative example 10 the difference from embodiment 1 is that:
The parts by weight that poly butylene succinate is added in step (A) are 65.
Above table shows: the amount and molecular weight of poly butylene succinate have an impact to toughness of products.
Embodiment 17
Embodiment 17 the difference from embodiment 1 is that:
Adhesive layer with a thickness of 0.020mm.
Embodiment 18
Embodiment 18 the difference from embodiment 1 is that:
Adhesive layer with a thickness of 0.023mm.
Comparative example 11
Comparative example 11 the difference from embodiment 1 is that:
Adhesive layer with a thickness of 0.018mm.
Comparative example 12
Comparative example 12 the difference from embodiment 1 is that:
Adhesive layer with a thickness of 0.027mm.
Embodiment 17 | Embodiment 18 | Comparative example 11 | Comparative example 12 | |
Extensibility % | 176 | 177 | 142 | 145 |
Upper table shows that adhesive layer thickness has an impact to toughness of products.
Embodiment 19
Embodiment 19 the difference from embodiment 1 is that:
The thickness of PLA leaching membrane layer with a thickness of 0.013mm.
Embodiment 20
Embodiment 20 the difference from embodiment 1 is that:
The thickness of PLA leaching membrane layer with a thickness of 0.015mm.
Comparative example 13
Comparative example 13 the difference from embodiment 1 is that:
The thickness of PLA leaching membrane layer with a thickness of 0.008mm.
Comparative example 14
Comparative example 14 the difference from embodiment 1 is that:
The thickness of PLA leaching membrane layer with a thickness of 0.017mm.
Embodiment 19 | Embodiment 20 | Comparative example 13 | Comparative example 14 | |
Extensibility % | 174 | 176 | 143 | 141 |
Upper table, which shows that the thickness of PLA leaching membrane layer has toughness of products, to be influenced
Embodiment 21
Embodiment 21 the difference from embodiment 1 is that:
Bonding leaching membrane paper heats before by polylactic acid lamination without roller in step (C).
Embodiment 22
Embodiment 22 the difference from embodiment 1 is that:
Leaching membrane paper in step (C) after polylactic acid lamination is without roll press.
Embodiment 23
Embodiment 23 the difference from embodiment 1 is that:
Bonding leaching membrane paper heats before by polylactic acid lamination without roller in step (C), the leaching membrane paper after polylactic acid lamination not into
Row roll press.
Comparative example 15
Comparative example 15 the difference from embodiment 1 is that:
Without step (A) and step (B), polylactic acid carries out lamination on body paper, body paper with a thickness of 0.4mm, the thickness of PLA leaching membrane layer
Degree is 0.035mm.
Embodiment 21 | Embodiment 22 | Embodiment 23 | Comparative example 15 | |
Extensibility % | 155 | 152 | 137 | 111 |
Upper table shows: there is certain influence to toughness of products in preheating and pressing.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of PLA leaching membrane paper, it is characterised in that: including body paper and PLA leaching membrane layer, set between the body paper and PLA leaching membrane layer
It is equipped with adhesive layer;The adhesive layer with a thickness of 0.020-0.025mm;The PLA leaching membrane layer with a thickness of 0.010-
0.015mm;The adhesive layer binding liquid, which is covered on body paper, to be solidified, and the binding liquid is by according to parts by weight such as the following group
Point melting mixing is made:
35-45 parts of polylactic acid
15-20 parts of polycaprolactone
55-60 parts of poly butylene succinate;
The molecular weight of polylactic acid in the binding liquid is 50000-100000;
The PLA leaching membrane layer is formed in adhesive layer far from the one side lamination of body paper by polylactic acid and the molecular weight of polylactic acid is
200000-300000。
2. a kind of PLA leaching membrane paper according to claim 1, it is characterised in that: the molecular weight of the polycaprolactone is 1500-
2000。
3. a kind of PLA leaching membrane paper according to claim 1, it is characterised in that: the molecule of the poly butylene succinate
Amount is 20000-50000.
4. a kind of preparation method for preparing PLA leaching membrane paper described in claim 1-3 any one, it is characterised in that: including such as
Lower step:
(A), by each component for preparing binding liquid, blended melting extrusion, granulation, formation bond lamination particle according to parts by weight;
(B), lamination pellet melting will be bonded and carries out lamination, lamination technological temperature on body paper are as follows: organism temperature 150-160
DEG C, die head temperature is 160-170 DEG C, forms bonding leaching membrane paper;
(C), by the melting of the polylactic acid of lamination PLA leaching membrane layer and to the adhesive layer of bonding leaching membrane paper far from being carried out on the side of body paper
Lamination, lamination technological temperature are as follows: organism temperature is 170-180 DEG C, and die head temperature is 180-190 DEG C.
5. a kind of preparation method of PLA leaching membrane paper according to claim 4, it is characterised in that: the bonding leaching membrane paper exists
It is heated before carrying out step (C), heating temperature is 90-100 DEG C.
6. a kind of preparation method of PLA leaching membrane paper according to claim 4, it is characterised in that: gather cream in the step (C)
After sour lamination, leaching membrane paper is pressed when being cooled to 95-100 DEG C.
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CN110878492A (en) * | 2019-12-12 | 2020-03-13 | 安庆市三环康泰纸塑有限公司 | Degradable environment-friendly laminating paper processing technology |
CN111719341A (en) * | 2020-06-27 | 2020-09-29 | 福建益百利包装材料有限公司 | PLA (polylactic acid) film coated paper and production process thereof |
CN111719333A (en) * | 2020-06-26 | 2020-09-29 | 福建益百利包装材料有限公司 | Bamboo powder drenches membrane paper |
CN112458798A (en) * | 2020-11-24 | 2021-03-09 | 蚌埠市维光塑胶制品有限公司 | Easily-degradable pollution-free environment-friendly plastic paper and preparation method thereof |
CN112796167A (en) * | 2021-01-14 | 2021-05-14 | 深圳光华伟业股份有限公司 | Biodegradable low-temperature-resistant laminating paper and preparation method thereof |
CN113355950A (en) * | 2021-06-22 | 2021-09-07 | 彤程化学(中国)有限公司 | Full-biodegradable laminated composite paper material and preparation method thereof |
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