CN107033567A - Peanut shell powder filled polypropylene lactic acid composite material and preparation method thereof - Google Patents
Peanut shell powder filled polypropylene lactic acid composite material and preparation method thereof Download PDFInfo
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- CN107033567A CN107033567A CN201710343968.8A CN201710343968A CN107033567A CN 107033567 A CN107033567 A CN 107033567A CN 201710343968 A CN201710343968 A CN 201710343968A CN 107033567 A CN107033567 A CN 107033567A
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- C08L97/00—Compositions of lignin-containing materials
- C08L97/02—Lignocellulosic material, e.g. wood, straw or bagasse
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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
- C08L2201/06—Biodegradable
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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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- 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
- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
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Abstract
The present invention discloses a kind of peanut shell powder filled polypropylene lactic acid composite material and preparation method thereof, and the composite mainly includes：Peanut shell powder, polypropylene, PLA, polyketone resin, compatilizer, antioxidant, coupling agent and processing aid.The peanut shell powder filled polypropylene lactic acid composite material of the present invention has environmental protection, low cost, high intensity, degradable, odorless, nontoxic, mould proof etc., and can direct contacting foodstuff, manufacture tableware etc. can be widely used in, the preferable lower cost materials of existing plastic tableware are that instead of.Peanut shell powder is added, the composite has the unrivaled gentle sense of common plasticses tableware and wooden texture.
Description
Technical field
The present invention relates to the production synthesis technique of high polymer material, more particularly to peanut shell powder filled polypropylene PLA is answered
Condensation material and preparation method thereof.
Background technology
China is the plantation big country of peanut, and substantial amounts of peanut shell can be all produced every year as agricultural wastes, it is carried out
The cost of processing is very high.Such as can be very serious to air pollution with the method processing burned.Rational application approach is found for it,
Its value is improved, with highly important economic benefit and social benefit.
The content of the invention
, can it is an object of the invention to provide a kind of peanut shell powder filled polypropylene lactic acid composite material and preparation method thereof
To solve the one or more in above-mentioned prior art problem.
According to an aspect of the invention, there is provided a kind of peanut shell powder filled polypropylene lactic acid composite material, mainly
Including：Peanut shell powder, polypropylene, PLA, polyketone resin, compatilizer, antioxidant, coupling agent and processing aid.
The peanut shell powder filled polypropylene lactic acid composite material of the present invention has three kinds of peanut shell, polypropylene and PLA
The various advantages of material, the composite has the advantages that cost is low, intensity is high, odorless, nontoxic, mould proof, and can be direct
Contacting foodstuff, can be widely used in manufacture tableware etc., be that instead of the preferable lower cost materials of existing plastic tableware.Add peanut
Shell powder, makes the composite also have the unrivaled gentle sense of common plasticses tableware and wooden texture, lifts Consumer's Experience.Should
Composite is degradation material, will not produce pollution to environment.Polyketone resin is added, the meal that can make this composite
Tool and household articles etc. are not allowed to be also easy to produce cut, by repeatedly using, and outward appearance can also be kept as new.
In some embodiments, compatilizer is maleic anhydride inoculated polypropylene, styrene copolymer or epoxy resin.
Compatilizer can erect chemical bond between polypropylene (PP) and PLA (PLA), improve both compatibilities, it is to avoid occur two
Plant the lamination of polymer.
In some embodiments, coupling agent is silane, titanate esters or Aluminate.Coupling agent mainly improve peanut shell powder and
The compatibility of resin.
In some embodiments, one or both of phenolic antioxidant and phosphite ester kind antioxidant that antioxidant is
Combination above.It is possible thereby to improve heat endurance and heat resistance of composite etc.
In some embodiments, processing aid is aliphatic acid, calcium stearate, silicone powder, silicone master batch and zinc stearate
One or both of more than combination.Processing aid can effectively improve the dispersiveness of each component, reduction plastic melt with setting
For the interior friction of the adhesion of metal surface, and plastic melt, advantageously account for article surface gloss difference during injection, the demoulding and be stranded
Difficult the problems such as.
In some embodiments, the addition component of peanut shell powder is peanut shell powder, polypropylene and PLA gross weight
30~50%.The addition of peanut shell powder is arranged in the range of this, every better mechanical property of prepared composite.
In some embodiments, count by weight, 20~60 parts of peanut shell powder, 20~40 parts of polypropylene, PLA
20~40 parts, 2~5 parts of polyketone resin.
According to another aspect of the present invention, a kind of peanut shell powder filled polypropylene lactic acid composite material is additionally provided
Preparation method, comprises the following steps：(1) peanut shell powder weighed up in proportion, PLA and coupling agent are well mixed, mixed
Compound；(2) mixture is blended and kneaded, obtain mixture；(3) mixture is crushed, obtains irregular broken material；(4) will be by
Broken material, polypropylene, antioxidant, compatilizer and the processing aid that ratio is weighed up are well mixed, and obtain premix；(5) will premix
Material adds extruder, extrudes strip composite.
In some embodiments, extruder is double screw extruder, and rotating speed is 100~200 revs/min.For this hair
For bright material, double screw extruder is uniform using this rotating speed material extrusion.
In some embodiments, the temperature control of double screw extruder is divided into 7 sections, each section from feeding mouth to discharging opening
Temperature setting is followed successively by：180 DEG C, 180 DEG C, 190 DEG C, 190 DEG C, 200 DEG C, 200 DEG C and 210 DEG C.Double screw extruder segmentation by
Step heating can be such that material is progressively softened, and material extrusion effect is more preferable.
Embodiment
The invention will be further described by the following examples, but protection domain is not restricted by the embodiments.
Embodiment 1：
(1) by 3kg peanut shell powders, 4kg PLAs (PLA), 0.1kg coupling agents KH550,0.2 kilogram of polyketone resin, four kinds
Material adds high-speed mixer and mixing uniformly, obtains mixture.
(2) this mixture is put into open type plastic purificating set blending mixing again, the design temperature of plastics processing mill is 190 DEG C, mixing
After 10 minutes, the mixture of bulk is obtained.
(3) mixture is put into crush in disintegrating machine and the irregular broken material that particle diameter is about 6-8 millimeters is made.
(4) by about 7.3kg broken material plus 3kg polypropylene, 0.1kg antioxidant (four propionates, abbreviation
1010), 0.1kg maleic anhydride inoculated polypropylenes, 0.2kg processing aid stearic acid, are all put into high speed mixer and mix equal
Even, incorporation time about 5 minutes obtains premix.
(5) premix is added in double screw extruder again, by heating melting, extrusion, tie rod, obtains strip composite wood
Material.The temperature control of double screw extruder is divided into 7 sections, and each section of temperature setting from feeding mouth to discharging opening is followed successively by：180℃、
180 DEG C, 190 DEG C, 190 DEG C, 200 DEG C, 200 DEG C and 210 DEG C.The rotating speed of double screw extruder is 150 revs/min.
(6) by strip composite water-carrying groove, pelletizing, composite particles are made.
In the present embodiment, compatilizer is maleic anhydride inoculated polypropylene, in other embodiments, and compatilizer can also be selected
With styrene copolymer or epoxy resin.Compatilizer can erect chemical bond between polypropylene (PP) and PLA (PLA),
Improve both compatibilities, it is to avoid the lamination of two kinds of polymer occur.
In the present embodiment, coupling agent is KH550 (i.e. 3 one triethoxysilyl -1- propylamine or the second of an aminopropyl three
TMOS).In other embodiments, coupling agent can also select silane, titanate esters or Aluminate.Coupling agent is mainly used in changing
The compatibility of kind peanut shell powder and resin.
In the present embodiment, antioxidant is four propionates (referred to as 1010).In other embodiments, antioxidant
The combination that can also be selected more than one or both of phenolic antioxidant and phosphite ester kind antioxidant, for example：Three (2,4 2
Tert-butyl-phenyl) phosphite ester (referred to as 168), alkylphenol Ao-1 etc..It is possible thereby to improve composite heat endurance and
Heat resistance etc..
In the present embodiment, processing aid is calcium stearate.In other embodiments, processing aid can also be from fat
Combination more than one or both of acid, silicone powder, silicone master batch and zinc stearate (abbreviation P-180).Processing aid can have
Effect ground improves the adhesion of dispersiveness, reduction plastic melt and the equipment metal surface of each component, and the interior of plastic melt rubs
Wipe, the problems such as advantageously accounting for article surface gloss difference during injection, demoulding difficulty.
The preparation method of peanut shell powder is will to be ground into again with flour mill after common peanut shell washes clean, drying
The powdery of 400-500 mesh, drying, its water content is no more than 1%.
In other embodiments, the melting temperature of plastics processing mill can also be set as 180~200 DEG C in step (2).
The ratio of various raw materials, can be counted by weight, 20~60 parts of peanut shell powder, 20~40 parts of polypropylene, gather breast
20~40 parts of acid, 2~5 parts of polyketone resin, 3~10 parts of compatilizer, 0.2~2 part of antioxidant, 0.2~2 part of coupling agent, processing is helped
0.5~2 part of agent.
After testing, the tensile strength of peanut shell powder filled polypropylene lactic acid composite material manufactured in the present embodiment is
17.3MPa, bending strength is 28.0MPa, and impact strength is 1.5KJ/M2, and melt index is 22.3g/10min.
Table 1 is embodiment 1, and prepares peanut shell powder filled polypropylene in some other method same as Example 1
In the embodiment of the composite of PLA, peanut shell powder, polypropylene, PLA, compatilizer, antioxidant, coupling agent and processing
The species and content of auxiliary agent, and prepared composite tensile strength, bending strength, impact strength and melt index.
From the experimental data of table 1, the composite prepared by the present invention has good tensile strength, bending strong
Degree, impact strength and melting such as refer at the mechanical performance.It is peanut shell powder, polypropylene and PLA gross weight in peanut shell powder addition component
Amount 30~50% when, the mechanical performance that product is made is entirely capable of meeting the use requirement of household articles；When adding for peanut shell powder
Dosage is optimal when being the 40% of peanut shell powder, polypropylene and PLA gross weight.
Composite prepared by the present invention can be used for making the commodity such as tableware, be to substitute existing plastic tableware production material
The desirable material of material.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (10)
1. peanut shell powder filled polypropylene lactic acid composite material, mainly includes：Peanut shell powder, polypropylene, PLA, polyketone tree
Fat, compatilizer, antioxidant, coupling agent and processing aid.
2. composite according to claim 1, it is characterised in that described compatilizer is maleic anhydride grafting poly- third
Alkene, styrene copolymer or epoxy resin.
3. composite according to claim 1, it is characterised in that described coupling agent is silane, titanate esters or aluminic acid
Ester.
4. composite according to claim 1, it is characterised in that phenolic antioxidant and phosphorous acid that the antioxidant is
Combination more than one or both of esters antioxidant.
5. composite according to claim 1, it is characterised in that the processing aid is aliphatic acid, calcium stearate, silicon
Combination more than one or both of ketone powder, silicone master batch and zinc stearate.
6. the composite according to any one of Claims 1 to 5, it is characterised in that the addition component of peanut shell powder is flower
Give birth to the 30~50% of shell powder, polypropylene and PLA gross weight.
7. the composite according to any one of Claims 1 to 5, it is characterised in that count by weight, the peanut shell
20~60 parts of powder, 20~40 parts of polypropylene, 20~40 parts of PLA, 2~5 parts of polyketone resin.
8. the preparation method of peanut shell powder filled polypropylene lactic acid composite material, comprises the following steps：
(1) peanut shell powder weighed up in proportion, PLA and coupling agent are well mixed, obtain mixture；
(2) mixture is blended and kneaded, obtain mixture；
(3) mixture is crushed, obtains irregular broken material；
(4) broken material, polypropylene, antioxidant, compatilizer and the processing aid that weigh up in proportion are well mixed, obtain pre-
Batch mixing；
(5) premix is added into extruder, extrudes strip composite.
9. preparation method according to claim 8, wherein, the extruder is double screw extruder, rotating speed is 100~
200 revs/min.
10. preparation method according to claim 9, wherein, the temperature control of the double screw extruder is divided into 7 sections, from
Each section of temperature setting of feeding mouth to discharging opening is followed successively by：180 DEG C, 180 DEG C, 190 DEG C, 190 DEG C, 200 DEG C, 200 DEG C and 210
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710343968.8A CN107033567A (en) | 2017-05-16 | 2017-05-16 | Peanut shell powder filled polypropylene lactic acid composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710343968.8A CN107033567A (en) | 2017-05-16 | 2017-05-16 | Peanut shell powder filled polypropylene lactic acid composite material and preparation method thereof |
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Cited By (4)
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| CN109054112A (en) * | 2018-08-14 | 2018-12-21 | 界首市路虎车业有限公司 | Electronic automobile-used antiultraviolet protection cover material of one kind and preparation method thereof |
| CN109337395A (en) * | 2018-09-13 | 2019-02-15 | 安徽省申运木业有限公司 | A kind of shock resistance timber material and preparation method thereof |
| CN109852089A (en) * | 2018-12-28 | 2019-06-07 | 青岛科凯达电子有限公司 | A kind of high-performance wood-plastic composite material and preparation method thereof |
| CN115304897A (en) * | 2022-08-19 | 2022-11-08 | 南通市东方塑胶有限公司 | High-strength degradable linear polyester composite material and preparation method thereof |
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