CN106633709A - High-temperature-resistance polylactic acid composite material for spinning and preparation method thereof - Google Patents
High-temperature-resistance polylactic acid composite material for spinning and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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- 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
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- 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
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/06—Biodegradable
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- C08L2203/12—Applications used for fibers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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Abstract
The invention designs a high-temperature-resistance polylactic acid composite material for spinning. The composite material is prepared from 40-60wt% of polylactic acid with crystallization temperature of 150-200 DEG C, 25-45wt% of polylactic acid with crystallization temperature of 100-140 DEG C, 1-15wt% of acrylic polymer and 1-5wt% of tackifier. The polylactic acid with the crystallization temperature of 150-200 DEG C and the polylactic acid with the crystallization temperature of 100-140 DEG C are compounded, and the acrylic polymer and the tackifier are added to synergistically enhance temperature resistance of the material, lower shrinkage rate after spinning and improve adhesiveness of spinning; the material is safe and nontoxic, and excellent biodegradability of the material is maintained to greatest extent. The material is simple to process and conducive to efficient industrial production.
Description
Technical field
The invention belongs to polymeric material field, the present invention relates to a kind of spinning with high-temperature resistant lactic acid composite material and its
Preparation method.
Background technology
With the development in the world, fossil resource is being increasingly constantly consumed, but the fossil resource such as oil and coal is
Non-renewable resources, the mankind are progressively being faced with the exhausted reality of fossil resource.Numerous macromolecules with oil etc. as raw material
Material will also be faced with huge challenge；For example poly- second of macromolecular material that simultaneously these depend on oil and are widely used
Alkene, polypropylene, polystyrene etc. also bring serious environmental pollution i.e. " white pollution "；Further, the environmental consciousness of people by
It is cumulative strong, can the renewable biodegradable material that can be recycled increasingly be taken seriously.
PLA（PLA）It is the renewable biodegradable environmental friendliness novel-section material that can be recycled of a class, it poly-
It is lactic acid monomer to close raw material, and lactic acid is obtained from the reproducible starch crops fermentation such as corn, cassava, sugarcane.PLA
Carbon dioxide and water are only produced in conventional biodegradable such as compost degradation process, it is free from environmental pollution not consume high-energy source also not
Carbon dioxide is extraly produced, is reached with the photosynthesis absorbing carbon dioxide of the vegetation such as crops and is recycled renewable profit
With.With other it is renewable it is biodegradable material can be recycled compared with, poly-lactic acid material has the advantages that high intensity, high-modulus
Be conducive to the application of material.
Widely studied based on above advantage PLA, Chinese patent CN103819884A addition inorganic nano materials
Material is prepared with necessarily durothermic PLA master batch with lactic acid monomer or prepolymer by reactive extrursion equipment, then with poly- breast
Acid compounding is obtained the material of heat-resisting high toughness reinforcing；Chinese patent CN03149911.2 improves PLA by adding inorganic filler micro mist
Heat resistance；The patents such as Chinese patent 200610037894.7, CN102492273A disclose natural fiber and synthetic fibers with
The composite of PLA obtains the lactic acid composite material of heat resistant type.With first-class patent by a large amount of nanometer materials of addition
Material, inorganic filler micro mist and fiber can obtain the lactic acid composite material with good heat resistance energy, but for spinning work
For skill, the addition of these materials easily blocks the easily series such as fracture of wire in spinning equipment even infringement equipment and drawing process and asks
Topic.At present the PLA commercially produced product of each veriety is proposed, wherein it is no lack of the PLA commodity of some high-temperature resistants, but
Be this kind of poly-lactic acid material be the crystalline rate and knot that material in process is for example improved by improving the crystallinity of itself
Brilliant degree reaching the purpose of high-temperature resistant, this result in the cementability after melt spinning between silk and silk reduce and also spinning contraction
Rate is larger.Chinese patent CN101735582A carries out compounding extrusion and the transparency is obtained using polymethyl methacrylate and PLA
Good PLA/the composite material of polymethyl methacrylate with certain heat resistance, but to improve composite
Temperature tolerance, need add heat stabilizer, and the addition of polymethyl methacrylate to reach 30wt% and more than, great shadow
The degradation property of material is rung；And maleic anhydride noxious material is with the addition of in process, it is unfavorable for the food of material
Product safety.So, a kind of nontoxic lactic acid composite material of new type of safe is an important research direction.
The content of the invention
For problem above, the preparation of new spinning high-temperature resistant type lactic acid composite material and correlation is we have proposed
Method.Employ crystallization temperature carries out compounding and reaches mutually collaboration to increase in 150～200 DEG C and 100～140 DEG C of PLA respectively
Adhesive property after strong heatproof effect and spinning, and aid in acrylic polymer and tackifier, there is the composite
High temperature tolerance, low-shrinkage, the advantages of keep material biological degradability and good spinning cementability to greatest extent.
To complete object above, the present invention is employed the following technical solutions：
A kind of spinning high-temperature resistant lactic acid composite material, by making including following raw material：
PLA 40～60wt% of the crystallization temperature at 150～200 DEG C, crystallization temperature 100～140 DEG C PLA 25～
45wt%, 1～15wt% of acrylic polymer, 1～5wt% of tackifier.
Preferably, described crystallization temperature 150～200 DEG C PLA preferentially select 6202D and SUPLA751.
Preferably, described crystallization temperature 100～140 DEG C PLA preferentially select 6302D.
Preferably, described acrylic polymer includes polyacrylic acid, polyacrylate, polymethylacrylic acid, propylene
Acid-methacrylic acid copolymer, acryl acid-methyl methacrylate copolymer, acrylic-styrene copolymer, acrylic acid first
Ester-styrol copolymer, methyl acrylate-methylmethacrylate copolymer, ethacrylate-styrene copolymer, propylene
Acetoacetic ester-methacrylic acid copolymer, EUDRAGIT NE 30 D etc..
Preferably, described tackifier are at least one in solid epoxy, terminal carboxyl polyester, hydroxyl telechelic polyester.
Described terminal carboxyl polyester includes hyperbranched terminal carboxyl polyester, and described hydroxyl telechelic polyester includes hyperbranched terminal hydroxy group
Polyester.
Preferably, the raw material of the composite also includes 0.1～1wt% of nucleator, 0.1～1wt% of antioxidant.
Preferably, described nucleator is inorganic nano material, preferentially from nano silicate（As nanometer sodium metasilicate, receive
Rice alumina silicate, nanometer calcium silicates etc.）, nano silicon.
Preferably, described antioxidant be four [β-（3,5- di-tert-butyl-hydroxy phenyls）Propionic acid] pentaerythritol ester（It is anti-
Oxygen agent 1010）, double (3,5- di-tert-butyl-4-hydroxyl benzyl phosphonic acids mono ethyl esters) calcium（Antioxidant 1425）Deng.
The method for preparing above-mentioned composite, including：After described each raw material is well mixed, squeeze at 170～210 DEG C
Go out granulation, 8～10h is dried under 40～60 DEG C of vacuum conditions；Then by pellet in 100～130 DEG C of pre-crystallized 2～4h, then
120～165 DEG C carry out 2～4h of solid-phase tack producing, that is, obtain the composite；
Or, after described each raw material is well mixed, the extruding pelletization at 170～210 DEG C, under 40～60 DEG C of vacuum conditions
8～10h is dried, that is, obtains the composite.
The present invention outstanding feature be with advantage：
1st, the present invention has been selected with high glass-transition temperature（Tg）Acrylic polymer, can be very good to improve poly- breast
The temperature tolerance of sour composite, and reduce the spinning shrinkage factor of composite.
2nd, the present invention considerably reduces the addition of non-biodegradable material, and the biology of material is remained to greatest extent
Degradation property, further reduces pollution of the material to environment.
3rd, the present invention is by adding tackifier simultaneously（Or）Can be reduced because process makes poly- breast by solid-phase tack producing reaction
Sour material degradation and cause serious viscosity to drop, significantly improve the temperature tolerance of material.
4th, the nucleator of present invention addition can be effectively promoted rapid crystallization in material forming process, further improve resistance to
Warm nature energy.
5th, the complex material and auxiliary agent that the present invention is used does not have toxicity, and process is not affected, and processing will not be set
It is standby to produce infringement, it is the biodegradable nontoxic safety composite material of a class.
6th, the work flow that the present invention is adopted is simple, and equipment requirement is low, and production efficiency is higher, easily realizes efficient industry
Production.
Specific embodiment
The preferred embodiments of the present invention are illustrated below, it will be appreciated that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
If no special instructions, the number of each raw material is parts by weight in the embodiment of the present invention.
Embodiment 1
60 parts of 6202D are dried into 8h under 100 DEG C of vacuum conditions, 30 parts of 6302D and 5 part of polyacrylic acid, 60 DEG C of vacuum conditions are little dry
After dry 10h, 5 parts of terminal carboxyl polyesters are added（Molecular weight 800～8000）, 0.3 part of antioxidant 1010,0.5 part of Nano-meter SiO_22, in room
It is well mixed under temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, dry 8 under 40～60 DEG C of vacuum conditions～
10h；Then pellet is carried out into 2～4h of solid-phase tack producing in 100～130 DEG C of pre-crystallized 2～4h at 120～165 DEG C, that is, is spun
Silk high-temperature resistant lactic acid composite material pellet.Composite pellet is carried out at a temperature of 170～210 DEG C by spinning equipment
Spinning, that is, obtain high-temperature resistant lactic acid composite material spun articles, and correlated performance is listed in table 1.
Embodiment 2
50 parts of 6202D are dried into 8h, 30 parts of 6302D and 15 part of polymethylacrylic acid, 60 DEG C of vacuum bars under 100 DEG C of vacuum conditions
It is dried under part after 10h, adds 5 parts of terminal carboxyl polyesters（Molecular weight 800～8000）, 0.3 part of antioxidant 1010,0.5 part of nanometer
SiO2, it is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, under 40～60 DEG C of vacuum conditions
It is dried 8～10h；Then pellet is carried out into 2～4h of solid-phase tack producing, i.e., in 100～130 DEG C of pre-crystallized 2～4h at 120～165 DEG C
Obtain spinning high-temperature resistant lactic acid composite material pellet.Composite pellet is set at a temperature of 170～210 DEG C by spinning
It is standby to carry out spinning, that is, high-temperature resistant lactic acid composite material spun articles are obtained, correlated performance is listed in table 1.
Embodiment 3
60 parts of 6202D are dried into 8h, 30 parts of 6302D and 5 part of acrylic acid-methacrylic acid copolymers under 100 DEG C of vacuum conditions
60 DEG C of vacuum conditions are little to be dried after 10h, adds 5 parts of solid epoxies（Epoxide equivalent 200～950）, 0.3 part of antioxidant
1010th, 0.5 part of nanometer sodium metasilicate, is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, 40
8～10h is dried under～60 DEG C of vacuum conditions, that is, obtains spinning high-temperature resistant lactic acid composite material pellet.By composite grain
Material carries out spinning at a temperature of 190～210 DEG C by spinning equipment, that is, obtain high-temperature resistant lactic acid composite material spun articles,
Correlated performance is listed in table 1.
Embodiment 4
60 parts of SUPLA751 are dried into 8h, 30 parts of 6302D and 5 part of acrylate-styrene copolymerization under 100 DEG C of vacuum conditions
60 DEG C of vacuum conditions of thing are little to be dried after 10h, adds 5 parts of end carboxyl super branched polyester（Molecular weight 1000～10000）, 0.3 part it is anti-
1010,0.5 part of Nano-meter SiO_2 of oxygen agent2, it is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C,
8～10h is dried under 40～60 DEG C of vacuum conditions；Then pellet is entered in 100～130 DEG C of pre-crystallized 2～4h at 120～165 DEG C
Row 2～4h of solid-phase tack producing, that is, obtain spinning high-temperature resistant lactic acid composite material pellet.By composite pellet 170～210
Spinning is carried out by spinning equipment at a temperature of DEG C, that is, obtains high-temperature resistant lactic acid composite material spun articles, correlated performance is listed in
Table 1.
Embodiment 5
55 parts of 6202D are dried into 8h under 100 DEG C of vacuum conditions, 30 parts of 6302D and 10 part of ethyl acrylate-methacrylic acids are common
60 DEG C of vacuum conditions of polymers are little to be dried after 10h, adds 5 parts of hydroxyl telechelic polyesters（Molecular weight 500～10000）, 0.3 part of antioxidant
1010th, 0.5 part of Nano-meter SiO_22, it is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, 40～
8～10h is dried under 60 DEG C of vacuum conditions；Then by pellet in 100～130 DEG C of pre-crystallized 2～4h, carry out at 120～165 DEG C solid
Mutually 2～4h of thickening, that is, obtain spinning high-temperature resistant lactic acid composite material pellet.By composite pellet in 170～210 DEG C of temperature
Spinning is carried out by spinning equipment under degree, that is, obtains high-temperature resistant lactic acid composite material spun articles, correlated performance is listed in table 1.
Embodiment 6
50 parts of 6202D are dried into 8h under 100 DEG C of vacuum conditions, 35 parts of 6302D and 10 part of acrylic acid-methacrylic acid methyl esters are total to
60 DEG C of vacuum conditions of polymers are little to be dried after 10h, adds 5 parts of solid epoxies（Epoxide equivalent 200～950）, 0.3 part of antioxidant
1010th, 0.5 part of nanometer aluminium silicate, is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, 40
8～10h is dried under～60 DEG C of vacuum conditions, that is, obtains spinning high-temperature resistant lactic acid composite material pellet.By composite grain
Material carries out spinning at a temperature of 170～210 DEG C by spinning equipment, that is, obtain high-temperature resistant lactic acid composite material spun articles,
Correlated performance is listed in table 1.
Embodiment 7
50 parts of SUPLA751 are dried into 8h, 35 parts of 6302D and 10 part of ethyl acrylate-metering systems under 100 DEG C of vacuum conditions
60 DEG C of vacuum conditions of sour methyl terpolymer are little to be dried after 10h, adds 5 parts of solid epoxies（Epoxide equivalent 200～950）、0.3
Part antioxidant 1010,0.5 part of nanometer calcium silicates, are well mixed at room temperature, and at a temperature of 170～210 DEG C twin-screw extrusion is used
Granulation, is dried 8～10h under 40～60 DEG C of vacuum conditions, that is, obtain spinning high-temperature resistant lactic acid composite material pellet.Will be multiple
Condensation material pellet carries out spinning at a temperature of 170～210 DEG C by spinning equipment, that is, obtain the spinning of high-temperature resistant lactic acid composite material
Squeeze, correlated performance is listed in table 1.
Embodiment 8
45 parts of SUPLA751 are dried into 8h, 35 parts of 6302D and 15 part of acrylic-styrene copolymers under 100 DEG C of vacuum conditions
60 DEG C of vacuum conditions are little to be dried after 10h, adds 5 parts of solid epoxies（Epoxide equivalent 200～950）, 0.3 part of antioxidant
1010th, 0.5 part of Nano-meter SiO_22, it is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, 40～
8～10h is dried under 60 DEG C of vacuum conditions, that is, obtains spinning high-temperature resistant lactic acid composite material pellet.By composite pellet
Spinning is carried out by spinning equipment at a temperature of 170～210 DEG C, that is, obtains high-temperature resistant lactic acid composite material spun articles, phase
Close performance and be listed in table 1.
Embodiment 9
50 parts of 6202D are dried into 8h, 35 parts of 6302D and 10 part of methyl acrylate-methyl methacrylates under 100 DEG C of vacuum conditions
60 DEG C of vacuum conditions of ester copolymer are little to be dried after 10h, adds 2.5 parts of solid epoxies（Epoxide equivalent 200～950）, 2.5 parts
Terminal carboxyl polyester（Molecular weight 800～8000）, 0.3 portion of antioxidant 1010,0.5 portion of nucleator, be well mixed at room temperature,
Double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, 8～10h is dried under 40～60 DEG C of vacuum conditions, that is, obtain spinning use
High-temperature resistant lactic acid composite material pellet.Composite pellet is spun at a temperature of 170～210 DEG C by spinning equipment
Silk, that is, obtain high-temperature resistant lactic acid composite material spun articles, and correlated performance is listed in table 1.
Embodiment 10
55 parts of SUPLA751 are dried into 8h under 100 DEG C of vacuum conditions, 30 parts of 6302D and 10 part of ethacrylate-styrenes are total to
60 DEG C of vacuum conditions of polymers are little to be dried after 10h, adds 5 parts of solid epoxies（Epoxide equivalent 200～950）, 0.3 part of antioxidant
1010th, 0.5 part of nanometer calcium silicates, is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, 40
8～10h is dried under～60 DEG C of vacuum conditions, that is, obtains spinning high-temperature resistant lactic acid composite material pellet.By composite grain
Material carries out spinning at a temperature of 170～210 DEG C by spinning equipment, that is, obtain high-temperature resistant lactic acid composite material spun articles,
Correlated performance is listed in table 1.
Embodiment 11
45 parts of 6202D are dried into 8h, 35 parts of 6302D and 15 part of Sodium Polyacrylates, 60 DEG C of vacuum conditions under 100 DEG C of vacuum conditions
It is little to be dried after 10h, add 5 parts of solid epoxies（Epoxide equivalent 200～950）, 0.3 part of antioxidant 1010,0.5 part of nanometer
SiO2, it is well mixed at room temperature, double-screw extruding pelletizing is used at a temperature of 170～210 DEG C, under 40～60 DEG C of vacuum conditions
It is dried 8～10h；Then pellet is carried out into 2～4h of solid-phase tack producing, i.e., in 100～130 DEG C of pre-crystallized 2～4h at 120～165 DEG C
Obtain spinning high-temperature resistant lactic acid composite material pellet.Composite pellet is set at a temperature of 170～210 DEG C by spinning
It is standby to carry out spinning, that is, high-temperature resistant lactic acid composite material spun articles are obtained, correlated performance is listed in table 1.
Tg and shrinkage factor after the composite spinning of 1 embodiment of table 1～11 with comparison example
In table spinning whether bonding method of testing be coated on triacetyl glycerine it is thread bonding between surface examination silk and silk.
From the point of view of data in table, gained poly lactic acid in use for spinning composite Tg can be made than pure through the design of different formulations
The Tg of PLA improves more than the 10 DEG C temperature tolerances for substantially increasing material；With the addition of acrylic polymer, spinning
Shrinkage factor has significantly reduction；The compound cementability that can be very good to improve spinning of two kinds of PLAs.Gained indicated above is produced
Product can meet completely the needs that industrial production and life are used.
The 6202D of the present invention（LLC IngeoTM Biopolymer）And 6302D（LLC IngeoTM Biopolymer）
Purchased from NatureWorks, SUPLA751 purchased from Taiwan permit friend into.
Examples detailed above is in order that one of ordinary skill in the art understands and applies the invention, to be not limited only to
This.Expert in the art, scholar and long campaigns those skilled in the art can be easy to make the present invention modification, and
This spirit invented is applied in other examples.Therefore, the present invention is not limited to cited certain embodiments, every to this
What invention general principle carried out simple modifications and modification all should be within protection scope of the present invention.
Claims (10)
1. a kind of spinning high-temperature resistant lactic acid composite material, it is characterised in that the composite is by including following raw material system
Into：
PLA 40～60wt% of the crystallization temperature at 150～200 DEG C, crystallization temperature 100～140 DEG C PLA 25～
45wt%, 1～15wt% of acrylic polymer, 1～5wt% of tackifier.
2. composite according to claim 1, it is characterised in that poly- breast of the described crystallization temperature at 150～200 DEG C
It is sour preferentially to select 6202D and SUPLA751.
3. composite according to claim 1, it is characterised in that poly- breast of the described crystallization temperature at 100～140 DEG C
6302D is preferentially selected in acid.
4. composite according to claim 1, it is characterised in that described acrylic polymer includes polypropylene
Acid, polyacrylate, polymethylacrylic acid, acrylic acid-methacrylic acid copolymer, acrylic acid-methacrylic acid methyl esters copolymerization
Thing, acrylic-styrene copolymer, acrylate-styrene copolymer, methyl acrylate-methyl methacrylate copolymer
Thing, ethacrylate-styrene copolymer, ethyl acrylate-methacrylic acid copolymer, ethyl acrylate-methacrylic acid
Methyl terpolymer.
5. composite according to claim 1, it is characterised in that described tackifier are solid epoxy, end carboxylic
At least one in base polyester, hydroxyl telechelic polyester.
6. composite according to claim 5, it is characterised in that described terminal carboxyl polyester includes hyperbranched end carboxyl
Polyester, described hydroxyl telechelic polyester includes hyperbranched hydroxyl telechelic polyester.
7. composite according to claim 1, it is characterised in that described raw material includes 0.1～1wt% of nucleator,
0.1～1wt% of antioxidant.
8. composite according to claim 7, it is characterised in that described nucleator is inorganic nano material, preferentially
From nano silicate, nano silicon.
9. composite according to claim 7, it is characterised in that described antioxidant be four [β-（3,5- bis- tertiary fourths
Base -4- hydroxy phenyls）Propionic acid] pentaerythritol ester and/or double (3,5- di-tert-butyl-4-hydroxyl benzyl phosphonic acids mono ethyl esters) calcium.
10. a kind of method for preparing the arbitrary composite of claim 1-9, it is characterised in that include：By described each original
After material is well mixed, the extruding pelletization at 170～210 DEG C is dried 8～10h under 40～60 DEG C of vacuum conditions；Then by pellet
In 100～130 DEG C of pre-crystallized 2～4h, then 2～4h of solid-phase tack producing is carried out at 120～165 DEG C, that is, obtain the composite；
Or, after described each raw material is well mixed, the extruding pelletization at 170～210 DEG C, under 40～60 DEG C of vacuum conditions
8～10h is dried, that is, obtains the composite.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110305435A (en) * | 2019-07-31 | 2019-10-08 | 金旸（厦门）新材料科技有限公司 | A kind of transparent plasticizing polylactic acid/acrylic alloy material and its prepare raw material and preparation method |
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| CN112111856A (en) * | 2020-09-01 | 2020-12-22 | 杭州爱多倍生物科技有限公司 | Preparation method of polylactic acid paper hot-rolled cloth |
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