CN110229473A - A kind of PET nanocomposite and preparation method thereof - Google Patents
A kind of PET nanocomposite and preparation method thereof Download PDFInfo
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- CN110229473A CN110229473A CN201810183600.4A CN201810183600A CN110229473A CN 110229473 A CN110229473 A CN 110229473A CN 201810183600 A CN201810183600 A CN 201810183600A CN 110229473 A CN110229473 A CN 110229473A
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Abstract
A kind of PET nanocomposite, the PET nanocomposite are to be made by mixing through melt blending；The mixing includes PET, is combined with nano material and liquid medium on PET particle.The invention also discloses the preparation method of PET nanocomposite, specific steps include A, by nano material and liquid medium mixing, form nano material mixture paste；B, the nano material mixture in step A is mixed to form blend with PET particle；C, the blend of step B is passed through into melt blending to get the PET nanocomposite.The tensile strength and impact strength of the nanocomposite get a promotion on the basis of PET base-material, and preparation method is simple, and production cost is low, easily promote.
Description
Technical field
The invention belongs to nanocomposite and its preparation fields, specifically, be related to a kind of PET nanocomposite and
Preparation method.
Background technique
Polyethylene terephthalate (PET) is most important kind in thermoplastic polyester, with excellent physics
Mechanical performance, for long-term use temperature up to 120 DEG C, electrical insulating property is excellent, creep resistance, fatigue durability, rub resistance, size
Stability is all fine, is widely used in the fields such as packing business, electronic apparatus, health care, building, automobile, is the modeling of five large-engineerings
One of material.Although polyethylene terephthalate has been widely used in field of engineering technology, its own is intrinsic some
Defect and deficiency limit its more profound application.At this time, what nanocomposite was shown is different from general compound
The property of material is that the study on the modification of polyethylene terephthalate indicates a new approach.Numerous studies card
It is real, polyethylene terephthalate and stratified nano materials are combined nanocomposite, its synthesis can be significantly improved
Performance.The preparation method of polyethylene terephthalate nanocomposite is mainly inserted using in-situ inserted and melting at present
Layer method preparation.Because in-situ inserted industrial investment is big, the period is long, it is more difficult to a wide range of to promote and apply；Fusion intercalation can moulded generally
It is carried out in material mixing facilities, it is easy to process, however need carry out the intercalation processing that organises to stratified nano materials early period, it is not easy to
The polyethylene terephthalate nano composite material being completely exfoliated.With development in science and technology, engineer application is to poly- pair
More stringent requirements are proposed in impact strength, bending strength and tensile strength performance for ethylene terephthalate material.
Patent No. CN101081928A is proposed a kind of preparation method of nanocomposite, is prepared using water-assisted growth
Polyamide/nano montmorillonite masterbatch, it is intercalator that preparation method, which is with deionized water, by the montmorillonite of purifying and deionization
Mud is added step-wise to the polyamide that prescription amount melts completely by water mixing, fully dispersed obtained montmorillonite mud, then through squeezing
It is granulated out and obtains polyamide/nano montmorillonite masterbatch.Preparation method is simple, and production cost is low, but this method is in polyamide
Montmorillonite mud is added after melting, be will lead to montmorillonite mud and is had not enough time to be thoroughly mixed with copolymer, the water of interlayer is just
Because of high-temperature gasification, and then montmorillonite cannot be dispersed in polyamide very well, so that properties of product promotion is limited；In addition, montmorillonite
Mud, which needs to increase on feed way certain pressure, to inject twin-screw for mud, simultaneously because the processing sections of twin-screw
It is short, the feeding section of montmorillonite mud is increased halfway, it is necessary to be increased twin-screw length, be caused technique more complicated, cost is more
It is high.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of tensile strength and impact is strong
It spends while being promoted, and preparation method is simple, production cost is low, PET nanocomposite easily promoted and preparation method thereof.
In order to solve the above technical problems, the present invention provides a kind of PET nanocomposite, the PET nanocomposite
It is to be made by mixing through melt blending；The mixing includes PET, is combined with nano material and liquid medium on PET particle.
In above scheme, preparation PET nanocomposite use by PET particle and nano material, liquid medium jointly into
The mode of material is made.It is coupled between PET particle with by nano material and liquid medium, forms a kind of not stratified blend.
Such mode solves in traditional approach very well, and PET is blended with nano material, and what nano material skidding can not be fed jointly asks
Topic.
Further, the nano material includes flake nano material, fibrous nano material, in granular nano material
One or more, preferably one of nano silicon oxide, nano zine oxide, carbon nano-fiber, nanometer tungsten oxide, nano-silicon
Or it is a variety of.
Nano material in above scheme is non-laminar nano material, wherein non-laminar nano material includes flake nano material
Material, granular nano material, fiber nano material；Specifically, non-laminar nano material includes: nano silicon oxide, it is nano oxidized
Titanium, nano zircite, nano zine oxide, nano aluminium oxide, nano-nickel oxide, nanogold, nano silver, nano-silicon, nano-sized carbon,
Carbon nano-fiber, carbon nanotube, nano-graphite, nano boron powder, nano-sulfur, nano lanthanum oxide are Nanometer-sized Neodymium Oxide, nano oxidized
Erbium, nano-cerium oxide, nano oxidized praseodymium, nano yttrium oxide, nano europium oxide, nanometer tungsten oxide, nanometer silicon carbide, nano oxygen
Change one of tellurium, nano oxidized niobium, nano-hafnium oxide, nanoscale molybdenum oxide or a variety of.It is preferred that nano silicon oxide, nano oxidized
Zinc, carbon nano-fiber, nanometer tungsten oxide, nano-silicon.
Further embodiment, stratified nano materials can be used for the present invention, since stratified nano materials are with unique
Two-dimentional layer structure, two-dimentional laminate Orienting ordered arrangement forms three-dimensional crystalline structure uniqueness, so that liquid medium is in certain condition
Under bedding void can be inserted strut laminate, without destroying the original structure of layer nano material, and stratified nano materials
Laminate composition and interlamellar spacing all have Modulatory character.When liquid medium enters interlayer, interlamellar spacing works as temperature because liquid medium struts
When degree is increased on the plasticization temperature or plasticization temperature of PET, into the further gas of liquid medium of stratified nano materials interlayer
Change explosion, by stratified material limellar stripping, the lamella of removing is just orderly dispersed to molten the huge energy of generation under constant stirring
In the PET melted.Layered nano material includes montmorillonite, phyllosilicate, kaolin, graphene, hydrotalcite, in black phosphorus
It is one or more.
Further, the liquid medium is dispersed between nano material, forms the paste with certain tack, institute
The consistency for stating paste is 0-100mm, but is not 0；
Preferably, the mass parts ratio of the liquid medium and nano material is 3~100:1；It is preferred that 5~50:1；It is more excellent
Select 5~20:1.
In above scheme, intercalation polymeric is to nano-material modified filtering and dry process, this hair compared to the prior art
After the interlayer injection liquid medium of bright stratified nano materials, paste continuous, and that there is certain tack is formd
Object, the paste have certain consistency, but consistency is not 0mm, represent the paste to be combined with liquid medium, because
This can be total to by the nano material paste uniform adhesion for being combined with liquid medium in PET particle surface with PET particle
With the equipment of feeding to melt blending, processability is improved.
Further, auxiliary agent is also contained in the paste, the auxiliary agent includes carboxylate surface active agent, sulfuric acid
Surfactant, sulfosalt surfactant, phosphate ester salt surfactant, amine salt surfactant, quaternary ammonium salt surface-active
Agent, heterocyclic type surfactant, nonionic surfactant, natural water soluble high molecular, synthetic water soluble high molecular and its prepolymer
One or more of；Wherein one of preferably synthetic water soluble polymer and its prepolymer or a variety of；
Preferably, the mass parts ratio of the auxiliary agent and nano material is 0.01~50:1；It is preferred that 0.1~5:1；More preferably
0.2~1:1.
In above scheme, the ability that liquid medium enters nano material is can be improved in the addition of auxiliary agent, to increase nanometer
The consistency of material blends；In addition, the addition of auxiliary agent can also improve the boiling point of liquid medium, liquid medium gas in advance is prevented
Change evolution.Due in the present invention generate paste nano material reaction temperature at room temperature, the requirement to auxiliary agent is not
Height, therefore it is wider to be suitable for the invention the alternative range of auxiliary agent.The auxiliary agent includes in water soluble polymer and its prepolymer
It is one or more, preferably poly-aspartate, lecithin, sodium alginate, polyacrylic acid, polyvinylamine, hyaluronic acid；
Wherein surfactant includes:
1, anionic surfactant: it is divided into carboxylate, sulfuric acid, sulfonate and phosphate ester salt.
(1) soap kind is higher fatty acid salt, and general formula of molecular structure is (RCOO)-nMn+.With stearic acid, oleic acid, laurel
Acid etc. is more common.According to the difference of its metal ion (Mn+), there are alkali metal soap, alkaling earth metal base and organic amine soap etc..
(2) hydrosulphate is mainly the sulfuric acid ester of sulfated oil and higher aliphatic, general formula of molecular structure ROSO3-M
+, there are commonly lauryl sodium sulfate (also known as " sldium lauryl sulfate "), sodium hexadecyl sulfate (also known as " cetanol sulfuric acid
Sodium "), sodium stearyl sulfate (also known as " stearyl alcohol sodium sulphate ") etc..
(3) sulphonic acid compound mainly has aliphatic sulfonic compound, sulfo group aryl sulfonic acid compound, sulfo group naphthalene sulfonic acids compound etc.
2, cationic surfactant: containing nitrogen-atoms in the hydrophilic group ion of cationic surfactant, according to nitrogen original
The position difference of son in the molecule is divided into amine salt and heterocyclic type.
3, zwitterionic surfactant: lecithin, amino acid pattern, betaine type
4, nonionic surfactant: fatty glyceride, fatty acid sorbitan (sapn), polysorbate (tween), alkane
Base phenol polyethenoxy ether, fatty alcohol polyoxyethylene ether, fatty acid methyl ester APEO, detergent series.
Water soluble polymer includes
1, natural class macromolecule
Starch；
Seaweeds: sodium alginate, agar-agar；
Natural plant gum class: Arabic gum, tragacanth gum, locust bean gum, tamarind seed polysaccharide glue, sesbania gum, carrageenan, guar gum, fruit
Glue；
Animal glue class: gelatin, casein, chitosan；
Microbiological gum: xanthan gum, gellan gum, hyaluronic acid.
2, class organic polymer is synthesized
(1) polymeric type water soluble polymer
Polyacrylamide, polyacrylic acid, polymethylacrylic acid and its copolymer, polyvinyl alcohol, polyethylene glycol, polyoxyethylene
Alkene, polyvinylpyrrolidone, polymaleic anhydride, polydimethyl diallyl ammonium chloride, polyvinylamine, poly- divinyl imidazoles
Quinoline, sulfonate styrene maleic anhydride copolymer, opens Pu Shi resin at kayexalate；
(2) polycondensation class water soluble polymer
Water soluble amino resin, water soluble phenol resin, water soluble alkyd resin, water-soluble epoxy resin, water-soluble poly
Urethane resin, polyethylene imine, poly-aspartate, poly-epoxy succinic acid, polyamine epichlorohydrin resin, polyamide second
Two urea formaldehydes, ammonia-epichlorohydrin resin, heavy polyamine epichlorohydrin resin, ammonia-dimethylamine-epichlorohydrin resin,
N, N- dimethyl 1,3- propane diamine and epichlorohydrin resin；
(3) other
Water Soluble Maleic Anhydride oil, dicyandiamide formaldehyde resin, rosin amine-ethylene oxide condensate, poly N-ethylene yl acetamide, water
Dissolubility ficoll.
3, semi-synthetic class macromolecule
Modified cellulose and converted starch；
Further, the boiling point of the liquid medium is lower than the plasticization temperature of PET, and preferably boiling point is lower than 180 DEG C, more preferably
Water.
In above scheme, the boiling point of liquid medium need to be lower than the plasticization temperature of PET, and preferably boiling point is lower than 180 DEG C of liquid
Medium.The liquid medium is selected from: isopentane, pentane, petroleum ether, hexane, hexamethylene, isooctane, trifluoroacetic acid, front three
Base pentane, pentamethylene, heptane, butyl chloride, trichloro ethylene, carbon tetrachloride, chlorotrifluoroethane, propyl ether, toluene, to diformazan
Benzene, chlorobenzene, o-dichlorohenzene, diethyl ether, benzene, isobutanol, ethylene dichloride, n-butanol, butyl acetate, propyl alcohol, methyl tert-butyl
Ketone, tetrahydrofuran, ethyl acetate, isopropanol, chloroform, methyl ethyl ketone, dioxane, pyridine, acetone, nitromethane,
Acetonitrile, dimethylformamide, methanol, water, methylamine, dimethylamine, ether, pentane, methylene chloride, carbon disulfide, 1,1-, bis- chloroethene
Alkane, trifluoroacetic acid, 1,1,1- trichloroethanes, ethyl alcohol, butanone, 1,2- dichloroethanes, glycol dimethyl ether, triethylamine, third
Nitrile, 4-methyl-2 pentanone, ethylenediamine, butanol, acetic acid, glycol monomethyl ether, octane, morpholine ethylene glycol monoethyl ether, dimethylbenzene,
Meta-xylene, acetic anhydride, ortho-xylene, N,N-dimethylformamide, cyclohexanone, cyclohexanol, furfural, N-METHYLFORMAMIDE etc.
One of or it is a variety of.It is preferred that o-dichlorohenzene, water, trimethylpentane, isopentane, acetic acid, toluene；In view of manufacturing cost with
And the pollution problem to environment, more preferable water.
Further, nano material and the mass parts ratio of PET are 0.1~20:100 in the mixing；It is preferred that 1~10:
100；More preferable 3~5:100.
Preferably, in the mixing there are also age resister, the mass parts ratio of the age resister and PET are 0.1~1:
100；It is preferred that 0.2~0.8:100；More preferable 0.3~0.6:100.
In above scheme, age resister can also be added in stepb to reduce liquid medium to nanocomposite
The mass parts ratio of the influence of energy, the age resister and PET are 0.1~1:100；It is preferred that 0.2~0.4:100；More preferably
0.3~0.4:100.
The age resister be selected from amine antioxidants, have ketoamine condensation product, secondary diarylamine, substituted p-phenylenediamine, by
Hinder amine；
Phenolic antioxidant, phenolic antioxidant can be divided into alkylation monophenols, alkylation polyphenol, thiobisphenol and polyphenol.Alkane
Base single phenol and polyphenol antioxidant principal item have antioxidant 264,1076,2246,1035,1010,3114 and 1790.It is thio
The principal item of bis-phenol has antioxidant 2246 and 300.Polyatomic phenol antioxidant principal item have 2,5 1 di-t-butyl hydroquinones and
2,5 12 amyl hydroquinones；
Thio-2 acid vinegar and phosphorous vinegar kind antioxidant, principal item have anti-aging agent TNP, Ultranox624 and Asia
Tricresyl phosphate (2, the tertiary T base phenyl of soul one or two) ester；
Other type antioxidants, 2 one coloured glaze base benzo miaow trade name antioxidant MBs, nickel dibutyl dithiocarbamate
Trade name antioxidant NBC, there are also zinc dialkyl dithiophosphates；
Primary anti-oxidant has: anti-aging agent RD, antioxidant A W, antioxidant BLE, antioxidant A, anti-aging agent OD, 4,4 '-bis- (α
Methylbenzyl) diphenylamines, 4,4 '-bis- (α, α-methylbenzyl) diphenylamines, N, N ,-di-sec-butyl-p-phenyl enediamine, anti-aging agent
4030, antioxidant 4010, antioxidant 4010NA, antioxidant 4020, antioxidant 264, antioxidant 1076, antioxidant 2216, antioxygen
Agent 1035, antioxidant 1010, antioxidant 3114, antioxidant 1790, antioxidant 2246, DBH 2,5 di tert butylhydroquinone, antioxidant
DLTP, antioxidant TNP, Ultranox624, phosphorous acid three (the tertiary T base phenyl of 2,4- bis-) ester, antioxidant MB, antioxidant NBC, two
One of alkyl zinc dithiophosphate is a variety of；It is preferred that anti-aging agent RD, antioxidant A W, antioxidant 4010NA, antioxidant
3114, antioxidant 264.
Further, which is characterized in that the preparation method comprises the following steps:
A, nano material and liquid medium are mixed, form nano material mixture paste；
B, the nano material mixture in step A is mixed to form blend with PET particle；
C, the blend of step B is passed through into melt blending to get the PET nanocomposite.
In above scheme, nano material is entered by liquid medium, lower be made with certain tack is being sufficiently stirred
Paste nano material, the paste nano material, which mixes to mix thoroughly with PET, can be directly added into feed zone, without applying pressure,
Without midway feeding, saves technique and reduce costs.In addition, nano material is added after mixing with PET, then through melt blending,
The PET of melting can envelope nano material to form protective layer, when the liquid medium gasification for entering nano material, nano material
When interior vapour pressure is greater than PET melt pressure, huge interior violence can be generated and separate nano material, isolated nano material is just
It is evenly dispersed into PET.
In above scheme, latex can also be added and envelope the paste nano material mixture that step A is obtained, it is described
Latex includes: styrene-acrylic emulsion, acrylic acid ester emulsion, acrylic emulsion, silicone acrylic emulsion, aqueous polyurethane emulsion, fluorine carbon emulsion,
Rosin resin lotion, terpinol, acrylate and vinyl acetate emulsion, aqueous epoxy resin emulsion, styrene-butadiene latex, Heveatex, white glue cream, neoprene
One of latex, pure C latex, carboxylic styrene butadiene latex, styrene-acrylic latex are a variety of, preferably styrene-acrylic emulsion, silicone acrylic emulsion, vinegar third
One of lotion, styrene-acrylic latex are a variety of.
In above scheme, latex is added and coats nano material mixture, forms protective layer, then when nano material mixture
When with PET melt blending, the liquid medium into nano material gasifies, when the vapour pressure in protective layer is greater than the melt pressure of PET
When can generate implosive force, the nano material of reunion is separated, using continuous stirring and/or shearing, isolated nano material
It can be highly dispersed in the PET of melting.
In above scheme, the melting extrusion technique in step C can be mixing, mill, screw rod (parallel/taper/mono-/bis -/tri-
Screw rod).
In above scheme, when using double screw extruder, the present invention solves when nano material is fed with PET very well
The case where now skidding, can not feeding simultaneously realizes mixed feeding in the presence of liquid medium of PET and nano material,
And without pressure is applied when feeding, in addition, passing through double screw extruder in melting process in PET and nano material
Shearing force and the implosive force of liquid medium gasification can make nano material more abundant in the dispersion of PET kind.
Wherein the engine speed of double screw extruder is 30-80Hz, and main feeding hopper revolving speed is 10-30Hz, and extrusion temperature is
One 150-200 DEG C of area, two 230-280 DEG C of areas, three 230-280 DEG C of areas, four 230-280 DEG C of areas, five 230-280 DEG C of areas；It is preferred that main
Machine revolving speed be 60-80Hz, main feeding hopper revolving speed be 20-30Hz, extrusion temperature be 150-180 DEG C of an area, two 245-260 DEG C of areas,
Three 245-260 DEG C of areas, four 245-260 DEG C of areas, five 245-260 DEG C of areas.
Further, auxiliary agent is additionally added in step A, the auxiliary agent can be added at one time also to be added in batches；
Preferably, can also increase physics mode in step A promotes liquid medium to disperse between nano material, the physics
Mode includes colloid mill, ball milling, ultrasound, vortex, etching auxiliary, gas shock.
In above scheme, the ability that liquid medium enters nano material is can be improved in the addition of auxiliary agent, to increase nanometer
The consistency of material blends；In addition, the addition of auxiliary agent can also improve the boiling point of liquid medium, liquid medium gas in advance is prevented
Change evolution.
It can promote dispersion of the liquid medium in nano material, the physics side in above scheme by physics mode
Formula includes but is not limited to that the modes such as ultrasound, colloid mill, ball milling, vortex, etching auxiliary, gas shock stir, the frequency of the ultrasound
Rate is 800~1000Hz, and power is 200~1000W.
Further, in step (3), comprising: (1) liquid medium, nano material in heat temperature raising, PET and paste
Be mixed, soften and interpenetrate under the first stirring cladding；(2) after the boiling point that temperature is greater than liquid medium, liquid is situated between
Matter partial gasification, the gasification carry out the second stirring to mixing.
Preferably, in step C, when mixing melt blending, when temperature is greater than or equal to PET plasticization temperature, in paste
's
Liquid medium further gasifies, and the nano material of reunion is separated；
It is further preferred that in step C, when mixing melt blending, liquid medium gasification promotes the mobility of the mixing
And promoting the conduction of heat, liquid medium gasification softens hot PET, and reduces its plasticization temperature
In above scheme, PET further contacts mixing by being stirred continuously with liquid medium, nano material, with temperature
It increases, PET starts to soften, and the PET of softening coats nano material, to form PET and nano material interpenetrates cladding
Blend.As temperature further increases, after temperature is greater than liquid medium boiling point, liquid medium portion gasification, to be blended
It will appear bubbling phenomenon in object, blend futher stirred to realize.
In above scheme, when on the plasticization temperature or plasticization temperature that temperature is increased to PET, into nano material
Liquid medium further gasifies, and the gasification can generate huge energy and separate the nano material of reunion, receiving after separation
Rice material is just under continuous stirring in the evenly dispersed PET to melting.
In above scheme, as PET and nano material melt blending, gasify into the liquid medium between nano material,
Heat in blend can be transmitted constantly under this gasification, be heated evenly blend, in addition, because liquid medium gas
Change, PET is also further softened, so that the infiltration cladding of PET and nano material is more abundant.In addition, its plasticization temperature also because
It decreases for the presence of steam.
In above scheme, when on the plasticization temperature or plasticization temperature that temperature is increased to PET, into nano material
Liquid medium further gasifies, and the gasification can generate huge energy and separate the nano material of reunion, receiving after separation
Rice material is just under continuous stirring in the evenly dispersed PET to melting.
The invention also provides a kind of mixings, comprising: paste and PET；
Paste includes: 1 parts by weight of nano material, liquid medium 5-100 parts by weight, auxiliary agent 0-50 parts by weight, but is not
0；The paste is adhered to PET particle surface and forms mixing；
Preferably, during preparing paste, successively nano material and auxiliary agent are added into liquid medium and are divided
It dissipates.
In above scheme, by the cream that nano material and liquid medium and appropriate amount of addition agent are mixed with to a kind of tack
Shape object, when PET base-material is mixed with paste, paste will be adhered on PET particle, PET particle will pass through paste that
This is mutually glued.This very good solution that nano material, liquid medium and PET particle the are formed prior art is skidded because of raw material
The problem of cannot feeding jointly.
After adopting the above technical scheme, compared with the prior art, the invention has the following beneficial effects:
1, simple process, nano material with liquid medium is mixed to form paste and PET together with melt blending, can obtain
To nanocomposite, without carrying out complicated organic-treating to nano material；
2, on feeding manner, the present invention realize nano material and PET in the presence of liquid medium simultaneously into
Material eliminates the charging of nano material midway and needs to increase spiro rod length, and production cost is lower, easily promotes, especially using water as liquid
Medium can more reduce environmental pollution.
3, nano material melting mixing together with PET, enables nano material to be preferably dispersed in PET, thus method
Its impact strength of nanocomposite obtained and tensile strength are promoted simultaneously.
Specific embodiment
Embodiment 1
PET/ nano silicon oxide nanocomposite
Raw material: 100 parts of PET, 40 parts of water nano silicon oxide, 10 1 part of Fen Ming glue
Preparation method:
1, the water of above-mentioned parts by weight is stirred at 1000HZ, the ultrasound condition of 200W, is slowly added to nano oxidized silicon powder
End adds gelatin after ultrasonic 30min, continues ultrasound 60min, ultimately forms the nano oxidized silica hybrid material of paste, this is mixed
The consistency of material is 58mm；
2, PET is mixed with the nano oxidized silica hybrid material of paste and is mixed thoroughly, puts into twin-screw extrusion machine inlet；
3, PET and the further melting mixing of nano silicon oxide, it is dry to get PET nano silicon oxide nanometer through extruding pelletization
Composite material.
The engine speed of the extrusion equipment is 30Hz, and main feeding hopper revolving speed is 10Hz, and extrusion temperature is 150 DEG C of an area,
Two 230 DEG C of areas, three 240 DEG C of areas, four 280 DEG C of areas, five 260 DEG C of areas, the linear velocity of screw speed are 0.8m/s.
Embodiment 2
The nano oxidized titanium nanometer composite material of PET/
Raw material: 100 parts of PET, 100 parts of water, 20 parts of nano-titanium oxide, 0.2 part of water-soluble epoxy resin anti-aging agent RD
0.2 part
1, the water of above-mentioned parts by weight is stirred at 1000HZ, the ultrasound condition of 1000W, is slowly added to nano oxidized titanium valve
End adds water-soluble epoxy resin after ultrasonic 30min, continues ultrasound 60min, obtains paste nano-titanium oxide mixing material, this
The consistency of mixing material is 67mm；
2, PET is mixed with paste nano-titanium oxide mixing material and is mixed thoroughly, puts into twin-screw extrusion machine inlet；
3, PET and the further melting mixing of nano-titanium oxide, through extruding pelletization, drying is received to get PET/ nano-titanium oxide
Nano composite material.
The extrusion equipment engine speed be 80Hz, main feeding hopper revolving speed be 30Hz, one area of extrusion temperature be 190
DEG C, two 280 DEG C of areas, three 260 DEG C of areas, four 260 DEG C of areas, five 250 DEG C of areas；The linear velocity of screw speed is 1m/s.
Embodiment 3
PET/ nano zine oxide nanocomposite
Raw material: 100 parts of PET, 100 parts of trimethylpentane, 0.5 part of nano zine oxide, 2.5 parts of lecithin antioxidant A W
0.3 part
Preparation method:
1, the trimethylpentane of above-mentioned parts by weight is stirred at 800HZ, the ultrasound condition of 1000W, then by nano oxygen
Change zinc powder to be slowly added into trimethylpentane, lecithin is added after ultrasonic 30min, continues ultrasound 60min, obtain paste and receive
Rice zinc oxide mixing material, the consistency of this mixing material are 79mm；
2, PET is mixed and is mixed thoroughly with paste nano zine oxide mixing material, anti-aging agent RD, be added in mixer；
3, by PET and nano zine oxide, further melt blending, the compound 3h of mixing are dry through being granulated in 300 DEG C of mixers
Dry PET/ nano zine oxide nanocomposite to obtain the final product.
Embodiment 4
PET/ carbon nano-fiber nanocomposite
Raw material: 100 parts of PET, 30 parts of water, 3 parts of carbon nano-fiber, 0.4 part of antioxidant 3114 of 12 parts of sodium alginate
Preparation method:
1, the water of above-mentioned parts by weight is slowly stirred lower addition kaolin powder, adds sodium alginate, shape is sufficiently stirred
At paste carbon nano-fiber mixing material, the consistency of this mixing material is 76mm；
2, PET is mixed with carbon nano-fiber mixing material, antioxidant 3114 and is mixed thoroughly, double screw extruder feeding is added
Area；
3, dry to get PET/ carbon nano-fiber through extruding pelletization by PET and the further melting mixing of carbon nano-fiber
Nanocomposites.
The engine speed of the extrusion equipment is 60Hz, and main feeding hopper revolving speed is 25Hz, and one area of extrusion temperature is 160 DEG C,
Two 270 DEG C of areas, three 270 DEG C of areas, four 260 DEG C of areas, five 240 DEG C of areas；The linear velocity of screw speed is 0.8m/s.
Embodiment 5
PET/ nanometer tungsten oxide nanocomposite
Raw material: 100 parts of PET, 25 parts of toluene, 5 parts of nanometer tungsten oxide, 0.5 part of antioxidant 2246 of 1 part of polyacrylic acid
1, the toluene of above-mentioned parts by weight is slowly stirred the lower nano oxidized tungsten powder of addition, adds polyacrylic acid, sufficiently
Stirring forms paste nanometer tungsten oxide mixing material, and the consistency of this mixing material is 18mm；
2, PET is mixed with nanometer tungsten oxide mixing material, antioxidant 2246 and is mixed thoroughly, mixer is added；
3, by PET and nanometer tungsten oxide, further melt blending, mixing compound 3h are passed through after discharging in 300 DEG C of mixers
Granulating and drying is up to PET/ nanometer tungsten oxide nanocomposite.
Embodiment 6
PET/ nanometer silicon composite material
Raw material: 100 parts of PET, 20 parts of water, 0.1 part of nano-silicon, 0.6 part of antioxidant MB of 1 part of polyvinylamine
Preparation method:
1, the water of above-mentioned parts by weight is stirred at 1000HZ, the ultrasound condition of 500W, is slowly added to nano-silicon powder, surpassed
Polyvinylamine is added after sound 30min, is continued ultrasound 60min, is ultimately formed paste nanometer silica hybrid material, this mixing material
Consistency be 58mm；
2, it is mixed thoroughly after mixing PET with nanometer silica hybrid material, antioxidant MB, twin-screw extrusion machine inlet is added；
3, by PET and the further melt blending of nano-silicon, through extruding pelletization, drying is nano combined to get PET/ nano-silicon
Material.
The engine speed of the extrusion equipment is 60Hz, and main feeding hopper revolving speed is 20Hz, and one area of extrusion temperature is 180 DEG C,
Two 245 DEG C of areas, three 255 DEG C of areas, four 250 DEG C of areas, five 240 DEG C of areas；The linear velocity of screw speed is 0.9m/s.
Embodiment 7
PET/ nano-sulfur nanocomposite
Raw material: 100 parts of PET, 16 parts of acetic acid, 2 parts of nano-sulfur, 0.7 part of antioxidant 4010NA of 0.6 part of hyaluronic acid
Preparation method:
1, the acetic acid of above-mentioned parts by weight is slowly stirred lower addition nanometer sulfur powder, adds hyaluronic acid, is sufficiently stirred
Paste nano-sulfur nanometer mixing material is formed, the consistency of this mixing material is 36mm；
2, mixed thoroughly after mixing PET with nano-sulfur nanometer mixing material, antioxidant 4010NA, be added double screw extruder into
Material mouth；
3, by PET and the further melt blending of montmorillonite/sepiolite, through extruding pelletization, drying is received to get PET/ nano-sulfur
Nano composite material.
The engine speed of the extrusion equipment is 70Hz, and main feeding hopper revolving speed is 15Hz, and one area of extrusion temperature is 170 DEG C,
Two 260 DEG C of areas, three 245 DEG C of areas, four 240 DEG C of areas, five 240 DEG C of areas；The linear velocity of screw speed is 1m/s.
Embodiment 8
PET montmorillonite/nano silicon oxide/nano oxidized titanium nanometer composite material
Raw material: 100 parts of PET, 80 parts of water+toluene, 8 parts of lecithin/sodium alginates 4 of nano silicon oxide/nano-titanium oxide
0.8 part of antioxidant NBC of part
Wherein the mass ratio of nano silicon oxide and nano-titanium oxide is 1:1, and the mass ratio of water and toluene is 1:1, lecithin
Mass ratio with sodium alginate is 1:1.
Preparation method:
1, the water of above-mentioned parts by weight and toluene are stirred at 800HZ, the ultrasound condition of 500W, is slowly added to nano oxidized
Silicon and nano oxidized titanium powder add lecithin and sodium alginate after ultrasonic 30min, continue ultrasound 60min, ultimately form
Paste nano silicon oxide/nano-titanium oxide mixing material, the consistency of this mixing material are 18mm；
2, it is mixed thoroughly after mixing PET with nano silicon oxide/nano-titanium oxide mixing material, antioxidant NBC, twin-screw is added
Squeeze out machine inlet；
3, dry to get PET/ through extruding pelletization by PET and the further melt blending of nano silicon oxide/nano-titanium oxide
Nano silicon oxide/nano oxidized titanium nanometer composite material.
The engine speed of the extrusion equipment is 60Hz, and main feeding hopper revolving speed is 30Hz, and one area of extrusion temperature is 200 DEG C,
Two 260 DEG C of areas, three 280 DEG C of areas, four 260 DEG C of areas, five 260 DEG C of areas；The linear velocity of screw speed is 0.7m/s.
Embodiment 9
PET/ nano zine oxide/carbon nano-fiber/nano-sulfur nanocomposite
Raw material: the hard double cyanogen of 100 parts of PET, 75 parts of toluene/acetic acid nano zine oxide/15 parts of carbon nano-fiber/nano-sulfur
1 part of 1035/ antioxidant NBC of 6 parts of antioxidant of amine-formaldehyde resins/polyvinylamine
Wherein, the mass ratio of toluene and acetic acid is 1:1, and the mass ratio of nano zine oxide, carbon nano-fiber and nano-sulfur is
The mass ratio of 1:1:1, dicyandiamide formaldehyde resin and polyvinylamine is 1:1, and antioxidant 1035 and the mass ratio of antioxidant NBC are
1:1。
Preparation method:
1, the toluene of above-mentioned parts by weight and acetic acid are stirred at 800HZ, the ultrasound condition of 800W, is slowly added to nano oxygen
Change zinc, carbon nano-fiber and nanometer sulfur powder, adds dicyandiamide formaldehyde resin and polyvinylamine after ultrasonic 30min, continue to surpass
Sound 60min, ultimately forms paste nano zine oxide/carbon nano-fiber/nano-sulfur mixing material, and the consistency of this mixing material is
79mm；
2, by PET and nano zine oxide/carbon nano-fiber/nano-sulfur mixing material, antioxidant 1035, antioxidant NBC, mixed
It is mixed thoroughly after conjunction, twin-screw extrusion machine inlet is added；
3, PET and nano zine oxide/further melt blending of carbon nano-fiber/nano-sulfur, it is dry through extruding pelletization, i.e.,
Obtain PET/ nano zine oxide/carbon nano-fiber/nano-sulfur nanocomposite.
The engine speed of the extrusion equipment is 30Hz, and main feeding hopper revolving speed is 30Hz, and one area of extrusion temperature is 165 DEG C,
Two 235 DEG C of areas, three 275 DEG C of areas, four 270 DEG C of areas, five 260 DEG C of areas；The linear velocity of screw speed is 1m/s.
Comparative example 1
On the basis of embodiment 1, the position of extruder is added in adjustment nano silicon oxide to this comparative example, is assisted using water
Method prepares PET/ nano silicon oxide nanocomposite.
Raw material: 100 parts of PET, 0.1 part of nano silicon oxide of 10 parts of water
Preparation method:
1, the water of above-mentioned parts by weight is mixed with nano silicon oxide, it is fully dispersed, nano silicon oxide mud is made；
2, PET is put into twin-screw extrusion machine inlet, PET is melted at high temperature；
3, nano silicon oxide mud is put into the PET melted completely, through extruding pelletization, drying to get PET/ nanometers
Silica nanocomposite.
Wherein the technological parameter of double screw extruder is same as Example 1.
Experimental example 1
This experimental example is the product of nanocomposite properties of product and corresponding base-material made from testing example 1-10
It can compare, as shown in table 1.
Table 1:
| Classification | Tensile strength (MPa) | Impact strength (kgcm/cm) |
| Embodiment 1 | 86 | 63 |
| Embodiment 2 | 89 | 65 |
| Embodiment 3 | 76 | 61 |
| Embodiment 4 | 81 | 62 |
| Embodiment 5 | 86 | 63 |
| Embodiment 6 | 89 | 66 |
| Embodiment 7 | 84 | 61 |
| Embodiment 8 | 79 | 62 |
| Embodiment 9 | 82 | 65 |
| PET base-material | 68 | 60 |
By the above experimental result it is found that the impact strength and tensile strength of embodiment 1-9 compare PET base-material obtains
Larger promotion.This is because the present invention is fed in the presence of liquid medium jointly using PET base-material and nano material,
It interpenetrates cladding, and the gasification of liquid medium is so that nano material separation, and has in PET melting process PET and nano material
Sequence is dispersed in the PET of melting, therefore its overall performance is improved.
Experimental example 2
This experimental example is multiple for comparing the PET/ nano silicon oxide nanometer as made from embodiment 1,1 distinct methods of comparative example
The difference of condensation material and PET monomer in nano material content and performance, as shown in table 2.
Table 2:
| Performance parameter | PET monomer | Embodiment 1 | Comparative example 1 |
| Nano material content % | 0 | 2.1 | 1.8 |
| Tensile strength MPa | 68 | 86 | 71 |
| Bending strength MPa | 108 | 115 | 110 |
| Impact strength Kg cm/cm | 60 | 63 | 57 |
As above data as can be seen that the nano combined material of PET/ nano silicon oxide as made from the method for embodiment 1
Nano material content is higher than comparative example 1 in expecting, illustrates to be sufficiently separated and be scattered in very well by the method nano silicon oxide
In PET.In addition, product made from embodiment 1 is superior to PET monomer in tensile strength, bending strength, impact strength, and compare
Although the product tensile strength of example 1 is promoted, its impact strength declines, this is also further illustrated through embodiment 1
Method, nano material can be highly dispersed in PET, and then its tensile strength and impact strength can get a promotion.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of PET nanocomposite, which is characterized in that the PET nanocomposite is by mixing through melt blending system
?；The mixing includes PET, is combined with nano material and liquid medium on PET particle.
2. a kind of PET nanocomposite according to claim 1, which is characterized in that the nano material includes sheet
One of nano material, fibrous nano material, granular nano material are a variety of, preferably nano silicon oxide, nano oxidized
One of zinc, carbon nano-fiber, nanometer tungsten oxide, nano-silicon are a variety of.
3. a kind of PET nanocomposite according to claim 1, which is characterized in that the liquid medium, which is dispersed to, to be received
Between rice material, the paste with tack is formed, the consistency of the paste is 0-100mm, but is not 0；
Preferably, the mass parts ratio of the liquid medium and nano material is 3~100:1；It is preferred that 5~50:1；More preferable 5~
20:1。
4. a kind of PET nanocomposite according to claim 3, which is characterized in that also contain in the paste and help
Agent, the auxiliary agent include carboxylate surface active agent, sulfate salt surfactant, sulfosalt surfactant, phosphate ester salt
Surfactant, amine salt surfactant, quaternary surfactant, heterocyclic type surfactant, nonionic surfactant,
Natural water soluble high molecular, one of synthetic water soluble high molecular and its prepolymer or a variety of；Wherein preferably synthetic water-soluble high score
One of son and its prepolymer are a variety of；
Preferably, the mass parts ratio of the auxiliary agent and nano material is 0.01~50:1；It is preferred that 0.1~5:1；More preferable 0.2
~1:1.
5. a kind of PET nanocomposite according to claim 1 or 3, which is characterized in that the boiling point of the liquid medium
Plasticization temperature lower than PET, preferably boiling point are lower than 180 DEG C, more preferable water.
6. a kind of PET nanocomposite according to claim 1, which is characterized in that in the mixing nano material with
The mass parts ratio of PET is 0.1~20:100；It is preferred that 1~10:100；More preferable 3~5:100；
Preferably, in the mixing there are also age resister, the mass parts ratio of the age resister and PET are 0.1~1:100；
It is preferred that 0.2~0.8:100；More preferable 0.3~0.6:100.
7. a kind of a kind of preparation method of any PET nanocomposite of claim 1~6, which is characterized in that described
Preparation method the following steps are included:
A, nano material and liquid medium are mixed, form nano material mixture paste；
B, the nano material mixture in step A is mixed to form blend with PET particle；
C, the blend of step B is passed through into melt blending to get the PET nanocomposite.
8. a kind of PET nanocomposite according to claim 7, which is characterized in that auxiliary agent is additionally added in step A, it is described
Auxiliary agent can be added at one time also to be added in batches；
Preferably, can also increase physics mode in step A promotes liquid medium to disperse between nano material, the physics mode
Including colloid mill, ball milling, ultrasound, vortex, etching auxiliary, gas shock.
9. preparation method according to claim 6, which is characterized in that in step (3), comprising:
(1) heat temperature raising, PET are mixed under the first stirring with the liquid medium in paste, nano material, soften and mutual
Mutually infiltration cladding；
(2) after the boiling point that temperature is greater than liquid medium, liquid medium portion gasification, the gasification carries out second to mixing and stirs
It mixes；
Preferably, the liquid in step C, when mixing melt blending, when temperature is greater than or equal to PET plasticization temperature, in paste
Body medium further gasifies, and the nano material of reunion is separated；
It is furthermore preferred that in step C, when mixing melt blending, liquid medium gasification promotes the mobility and promotion of the mixing
The conduction of heat, liquid medium gasification softens hot PET, and reduces its plasticization temperature.
10. a kind of mixing characterized by comprising paste and PET；
Paste includes: 1 parts by weight of nano material, liquid medium 5-100 parts by weight, auxiliary agent 0-50 parts by weight, but is not 0；Institute
It states paste and is adhered to PET particle surface formation mixing；
Preferably, during preparing paste, successively nano material and auxiliary agent are added in liquid medium and are dispersed.
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