CN109401236A - Antistatic lactic acid composite material and preparation method thereof - Google Patents
Antistatic lactic acid composite material and preparation method thereof Download PDFInfo
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- CN109401236A CN109401236A CN201811096947.1A CN201811096947A CN109401236A CN 109401236 A CN109401236 A CN 109401236A CN 201811096947 A CN201811096947 A CN 201811096947A CN 109401236 A CN109401236 A CN 109401236A
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- weight
- antistatic
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- lactic acid
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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
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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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
Abstract
The present invention relates to a kind of antistatic lactic acid composite materials and preparation method thereof, belong to technical field of composite materials.Solves the technical problem of the antistatic property difference of polylactic acid in the prior art.Antistatic lactic acid composite material of the invention is made of 100 parts by weight polylactic acid, 5-8 part by weight of carbon black conductive fiber, 3-5.5 weight account polyethylene wax, 1-3 parts by weight of compatible agent vinyl-ester vinyl acetate copolymer, 2-4 parts by weight toughener, 3-5 parts by weight silane coupling agent, 1-2 parts by weight antioxidant, 1-2.5 parts by weight age resister, 1.5-2.5 parts by weight of graphite alkene nanometer sheet, 4-6 parts by weight polyethylene glycol, 2-2.5 parts by weight dodecyl trimethyl ammonium chloride, 1-1.5 parts by weight talcum powder and 0.5-1.5 parts by weight montmorillonite.The antistatic lactic acid composite material has good mechanical property and antistatic property.
Description
Technical field
The invention belongs to technical field of composite materials, and in particular to a kind of antistatic lactic acid composite material and its preparation side
Method.
Background technique
Have a hydroxyl and a carboxyl in single lactic acid molecules, multiple lactic acid molecules together, a lactic acid molecules
- OH and another lactic acid molecules-COOH dehydrating condensation, form polymer, as polylactic acid.Polylactic acid (chemical formula H-
[OCHCH3CO] n-OH, abbreviation PLA) have that good biological degradability, good biocompatibility, glossiness are good, the transparency is good, good hand touch
The advantages that, purposes is very extensive, can be used as packaging material, fiber and non-woven fabric etc., it is mainly used for clothes (underwear, coat),
Fields, the polylactic acid easy processing such as industry (building, agricultural, forestry, papermaking) and health care can be processed with various ways,
Such as extruding, spinning, biaxial stretch-formed, injection-blow molding.
However, the crystallization rate of polylactic acid is very slow as a kind of crystalline polymer, therefore mechanical strength and rigidity are inadequate
Height, poor toughness are a kind of hard and crisp material at normal temperature, and normal using product made from the common processing methods such as injection moulding
In amorphous state, the heat resistance of product is caused to be limited by its low glass transition temperature (55-60 DEG C), heat distortion temperature is usual
Only 50-55 DEG C or so, heat resistance is very poor.These all significantly limit polylactic acid to mechanical strength and heat resistant requirements compared with
The extensive use of high occasion.
In addition, when polylactic acid is applied in electronic product, because polylactic acid has electrical insulating property, easily friction in process
Electrification, the electrostatic of accumulation may cause the adverse effects such as electrostatic precipitation, spark discharge even fire as eliminated not in time.
Summary of the invention
Present invention aim to address the technical problem of the antistatic property of polylactic acid in the prior art difference, provide one kind resist it is quiet
Voltolisation lactic acid composite and preparation method thereof.
It is as follows that the present invention solves the technical solution that above-mentioned technical problem is taken.
Antistatic lactic acid composite material of the invention, composition and parts by weight are as follows:
Preferably, the molecular weight of the polylactic acid is 80,000-25 ten thousand.
Preferably, the silane coupling agent is Silane coupling agent KH550, silane coupling agent KH560, silane coupling agent
KH570 or silane coupling agent KH792.
Preferably, the antioxidant is suffocated amine antioxidant or Hinered phenols antioxidant；It is furthermore preferred that the antioxygen
Agent is four (β-(3,5 di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol esters, (3,5- di-tert-butyl-hydroxy phenyl) third
Sour octadecyl ester or β-(3,5- di-tert-butyl-hydroxy phenyl) cyclohexyl propionate, as antioxidant 1010,1076,168,264,
1098 or B900.
Preferably, the compatilizer is vinyl-ester vinyl acetate copolymer.
Preferably, the toughener is methyl methacrylate-acrylate copolymer, methyl methacrylate-fourth
One or more of diene-styrene copolymer.
Preferably, the age resister is phosphite or benzophenone.
Preferably, the talcum powder and the fineness of montmorillonite are 500-1000 mesh.
It is that each original is weighed by composition and ratio the present invention also provides the preparation method of above-mentioned antistatic lactic acid composite material
Material is added double screw extruder blending extrusion and is granulated, obtain antistatic lactic acid composite material after mixing.
Preferably, the double screw extruder melting temperature is 160-180 DEG C.
Compared with prior art, beneficial effects of the present invention:
Antistatic lactic acid composite material of the invention has good mechanical property and antistatic property, tensile strength 57-
68MPa, elongation at break 82-104%, bending strength 106-122MPa, bending modulus 3260-3760MPa, volume electricity
Resistance rate is 7.4 × 107-8.9×107。
Antistatic lactic acid composite material of the invention and preparation method thereof simple process, it is easily operated.
Specific embodiment
For a further understanding of the present invention, the preferred embodiment of the invention is described below with reference to embodiment, still
It should be appreciated that these descriptions are only further explanation the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
Embodiment 1
Antistatic lactic acid composite material, by 100 parts by weight polylactic acid (100,000), 5 part by weight of carbon black conductive fibers, 3 weights
Measure part polyethylene wax, 1 parts by weight of compatible agent vinyl-ester vinyl acetate copolymer, 2 parts by weight toughener methyl methacrylates-
Acrylate copolymer, 3 parts by weight Silane coupling agent KH550s, 1 parts by weight antioxidant 1010,1 parts by weight age resister hexichol first
Ketone, 1.5 parts by weight of graphite alkene nanometer sheets, 4 parts by weight polyethylene glycol, 2 parts by weight dodecyl trimethyl ammonium chloride, 1 parts by weight
Talcum powder and 0.5 parts by weight montmorillonite composition.
The preparation method of above-mentioned antistatic lactic acid composite material is that each raw material is weighed by composition and ratio, is uniformly mixed
Afterwards, double screw extruder blending extrusion is added to be granulated, obtains antistatic lactic acid composite material, double screw extruder melting temperature
It is 160-180 DEG C.
Embodiment 2
Antistatic lactic acid composite material, by 100 parts by weight polylactic acid (200,000), 8 part by weight of carbon black conductive fibers, 5.5
Weight account polyethylene wax, 3 parts by weight of compatible agent vinyl-ester vinyl acetate copolymers, 4 parts by weight toughener methyl methacrylates
Ester-acrylate copolymer, 5 parts by weight Silane coupling agent KH550s, 2 parts by weight antioxidant 1010s, 2.5 parts by weight age resisters
Benzophenone, 2.5 parts by weight of graphite alkene nanometer sheets, 6 parts by weight polyethylene glycol, 2.5 parts by weight dodecyl trimethyl ammonium chloride,
1.5 parts by weight talcum powder and 1.5 parts by weight montmorillonites composition.
The preparation method of above-mentioned antistatic lactic acid composite material is that each raw material is weighed by composition and ratio, is uniformly mixed
Afterwards, double screw extruder blending extrusion is added to be granulated, obtains antistatic lactic acid composite material, double screw extruder melting temperature
It is 160-180 DEG C.
Embodiment 3
Antistatic lactic acid composite material, by 100 parts by weight polylactic acid (150,000), 7 part by weight of carbon black conductive fibers, 5 weights
Measure part polyethylene wax, 2 parts by weight of compatible agent vinyl-ester vinyl acetate copolymers, 3 parts by weight toughener methyl methacrylates-
Acrylate copolymer, 4 parts by weight Silane coupling agent KH550s, 1.5 parts by weight antioxidant 1010s, 2 parts by weight age resister hexichol
Ketone, 2 parts by weight of graphite alkene nanometer sheets, 5 parts by weight polyethylene glycol, 2 parts by weight dodecyl trimethyl ammonium chloride, 1.5 weight
Part talcum powder and 1 parts by weight montmorillonite composition.
The preparation method of above-mentioned antistatic lactic acid composite material is that each raw material is weighed by composition and ratio, is uniformly mixed
Afterwards, double screw extruder blending extrusion is added to be granulated, obtains antistatic lactic acid composite material, double screw extruder melting temperature
It is 160-180 DEG C.
The performance of the obtained antistatic lactic acid composite material of embodiment 1-3 is detected, testing result such as 1 institute of table
Show.Tensile property is detected according to GB/T1040.2-2006, detects bending property according to GB/T9304-2008, volume resistivity is adopted
It is detected with GB/T B1410, testing result is as shown in table 1.
The antistatic lactic acid composite material performance characterization of 1 embodiment 1-3 of table
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. antistatic lactic acid composite material, which is characterized in that composition and parts by weight are as follows:
2. antistatic lactic acid composite material according to claim 1, which is characterized in that the molecular weight of the polylactic acid
It is 80,000-25 ten thousand.
3. antistatic lactic acid composite material according to claim 1, which is characterized in that the silane coupling agent is silane
Coupling agent KH550, silane coupling agent KH560, silane coupling agent KH570 or silane coupling agent KH792.
4. antistatic lactic acid composite material according to claim 1, which is characterized in that the antioxidant is hindered amines
Antioxidant or Hinered phenols antioxidant.
5. antistatic lactic acid composite material according to claim 1, which is characterized in that the compatilizer is vinyl-ester
Vinyl acetate copolymer.
6. antistatic lactic acid composite material according to claim 1, which is characterized in that the toughener is metering system
One or more of sour methyl esters-acrylate copolymer, Methyl Methacrylate-Butadiene-Styrene Copolymer.
7. antistatic lactic acid composite material according to claim 1, which is characterized in that the age resister is phosphorous acid
Salt or benzophenone.
8. antistatic lactic acid composite material according to claim 1, which is characterized in that the talcum powder and montmorillonite
Fineness is 500-1000 mesh.
9. the preparation method of antistatic lactic acid composite material described in claim 1-8 any one, which is characterized in that press group
At and proportion weigh each raw material, after mixing, double screw extruder blending extrusion is added and is granulated, it is multiple to obtain antistatic polylactic acid
Condensation material.
10. the preparation method of antistatic lactic acid composite material according to claim 9, which is characterized in that double spiral shells
Bar extruder melting temperature is 160-180 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096947.1A CN109401236A (en) | 2018-09-20 | 2018-09-20 | Antistatic lactic acid composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096947.1A CN109401236A (en) | 2018-09-20 | 2018-09-20 | Antistatic lactic acid composite material and preparation method thereof |
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| CN109401236A true CN109401236A (en) | 2019-03-01 |
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| CN201811096947.1A Withdrawn CN109401236A (en) | 2018-09-20 | 2018-09-20 | Antistatic lactic acid composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114702803A (en) * | 2022-04-28 | 2022-07-05 | 深圳烯湾科技有限公司 | Antistatic polylactic acid material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772926A (en) * | 2013-12-18 | 2014-05-07 | 江苏悦达新材料科技有限公司 | High-performance flame-retardant PLA (polylactic acid)/graphene nano-sheet composite material and preparation method thereof |
-
2018
- 2018-09-20 CN CN201811096947.1A patent/CN109401236A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103772926A (en) * | 2013-12-18 | 2014-05-07 | 江苏悦达新材料科技有限公司 | High-performance flame-retardant PLA (polylactic acid)/graphene nano-sheet composite material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 西鹏等: "《高技术纤维概论（第2版）》", 30 November 2015, 中国纺织出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114702803A (en) * | 2022-04-28 | 2022-07-05 | 深圳烯湾科技有限公司 | Antistatic polylactic acid material and preparation method thereof |
| CN114702803B (en) * | 2022-04-28 | 2023-08-18 | 深圳烯湾科技有限公司 | Antistatic polylactic acid material and preparation method thereof |
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Application publication date: 20190301 |
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