CN107141587A - A kind of preparation method of antistatic high tenacity PP/PA6 composites - Google Patents
A kind of preparation method of antistatic high tenacity PP/PA6 composites Download PDFInfo
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- CN107141587A CN107141587A CN201710356124.7A CN201710356124A CN107141587A CN 107141587 A CN107141587 A CN 107141587A CN 201710356124 A CN201710356124 A CN 201710356124A CN 107141587 A CN107141587 A CN 107141587A
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- composites
- high tenacity
- compatibilization
- mass fraction
- toughening agent
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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
- 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
Abstract
The invention discloses a kind of antistatic high tenacity PP/PA6 composites, step is as follows：To PP compatibilization and toughening agent is cooperateed with being added in PA6 composites, PP/PA6 composites are obtained using melt blending injection, PP and PA6 total mass fraction is 80 95% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 5 20%, and PA6 and PP weight ratio are 1:9‑2:3, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the wherein content of ionic liquid is 4.9 15%, and the content of gas phase nano silica is 0.1 5%.The ionic liquid cationic is imidazoles or pyridines, and anion is chlorion.The elongation at break of antistatic high tenacity PP/PA6 composites prepared by this method is 250% 800%, and sheet resistance is 105‑108Ω。
Description
Technical field
The invention belongs to polymeric material field, and in particular to a kind of method of collaboration compatibilization and toughening PP/PA6 composites
Preparation method.
Background technology
Blending and modifying is a kind of simple and effective method of modifying, and PP can be prepared with other plastic blends and have these concurrently and gather
The high polymer alloy of compound property.But PA6 is a kind of highly polar polymer, and PP is a kind of polymer of low pole, two
The solubility parameter difference of person is larger, and the simple blend without thermodynamic compatibility, thus PP and PA6 has compatibility
Poor shortcoming.
At present, conventional compatilizer mainly has three major types by backbone structure to divide：The first kind is rubber (such as EP rubbers)
With the graft copolymer of polar monomer (such as maleic anhydride)；Equations of The Second Kind is the graft copolymerization of PP or other resins and polar monomer
Thing, includes (1) PP and maleic anhydride, furoate clothing or nitrine sulphonyl benzoic acid graft copolymer；(2) PP and butyl acrylate or horse
Carry out the graft copolymer of dibutyl phthalate；(3) graft copolymer of PP and N hydroxymethyl acrylamide；(4) ethylene-vinyl acetate
The graft copolymer of copolymer and maleic anhydride；3rd class is atactic styrene-maleic anhydride copolymer (R-SMA), uses this
Class compatilizer, can improve PA6 and PP compatibility, so as to improve the mechanical property of material.
The low temperature molten salt that ionic liquid is made up of zwitterion, highly polar with high ion-conductivity, vapour pressure
It is low, it is not volatile, stability is good and acidity can reconcile electrochemical window it is big the advantages of.In addition, the anions and canons of ionic liquid have
Polytype is designed as the functional group with specific function or special properties and is referred to as " can design solvent ".At present,
Ionic liquid is used widely in many aspects, particularly in terms of the processing of material.
Gas phase nano silica is due to its particle diameter very little, and specific surface area is big, and chemical purity is high, dispersive property is good, superior
Stability, reinforcing etc., it is shown unique characteristics in numerous subjects and field, do not replace.In addition, gas phase
The features such as coordination of the nano silicon due to surface seriously not enough, huge specific surface area and surface anoxic, show it
Go out extremely strong activity, it is easy to and the oxygen on the carbonyl in PA6 plays bonding action, improves intermolecular interaction force, together
When some nanometer silicon dioxide particle be distributed in the space of macromolecular chain, because small volume shows very high flowing
Property, so that gas phase nano silica can increase substantially the intensity, toughness, ductility of PP/PA6 composites.
The content of the invention
The technical problems to be solved by the invention be for PP and PA6 simple blend exist compatibility it is poor lack
Point is increased there is provided a kind of preparation method of antistatic high tenacity PP/PA6 composites by adding collaboration into PP and PA6 systems
Hold toughener ionic liquid and gas phase nano silicon obtains a kind of antistatic high tenacity PP/PA6 composites.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of preparation method of antistatic high tenacity PP/PA6 composites, step is as follows：Added into PP/PA6 composites
Compatibilization and toughening agent is cooperateed with, antistatic high tenacity PP/PA6 composites are obtained using melt blending injection, wherein PP and PA6 account for multiple
The mass fraction of condensation material is 80-95%, and the mass fraction that collaboration compatibilization and toughening agent accounts for composite is 5-20%.
Described PA6 and PP mass ratio are 1:9-2:3, described collaboration compatibilization and toughening agent is that ionic liquid and gas phase are received
The mass fraction that the mixture of rice silica, wherein ionic liquid account for composite is 4.9-15%, gas phase nano silica
The mass fraction for accounting for composite is 0.1-5%.
The cation of the collaboration compatibilization and toughening agent intermediate ion liquid is imidazoles, pyridines, and anion is chlorion, gas
Phase nano silicon particle diameter is 7-12 nm, and specific surface area is 200-400 m2/g。
Screw speed is 25 r/min during the melt blending, and feed zone temperature is set to 160-170oC, fluxing zone temperature
For 190-210oC, melt zone temperature is 200-220oC, then using micro-injection machine injection molding, wherein injecting head temperature
200-220 oC, injection pressure is 0.5 MPa, and injection time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 40-50oC。
Utilize antistatic high tenacity PP/PA6 made from the preparation method of described antistatic high tenacity PP/PA composites
The elongation at break of composite is 250%-800%, and sheet resistance is 105-108Ω。
Beneficial effects of the present invention：The present invention is used as collaboration compatibilization and toughening using ionic liquid and gas phase nano silicon
Agent, PP/PA6 composites are prepared by melt blending injection.On the one hand its substituent can be with PP phases for the addition of ionic liquid
Hold, on the other hand its cation interacts with the oxygen in C=O in PA6, so, the addition of ionic liquid can be as compatible
Agent raising PP and PA6 compatibility, and not enough, the huge specific surface area of coordination of the gas phase nano silica due to surface seriously
And the features such as the anoxic of surface, it is shown extremely strong activity, it is easy to and the oxygen on the carbonyl in PA6 plays bonding action,
Intermolecular interaction force is improved, while some nanometer silicon dioxide particle is distributed in PA6 and PP strands
In space, because small volume shows very high mobility, so, ionic liquid and gas phase nano silicon synergy can
To increase substantially the intensity, toughness, ductility of PP/PA6 composites.Meanwhile, ionic liquid is due to high ion biography
The property led, so, the addition of ionic liquid causes PP/PA6 composite material exhibits to go out good antistatic behaviour.
Embodiment
With reference to specific embodiment, the present invention will be further described.It should be understood that following examples are merely to illustrate this
Invention can make one not for limitation the scope of the present invention, the person skilled in the art in the field according to the content of foregoing invention
A little nonessential modifications and adaptations.
Embodiment 1
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatibilization and toughening agent is cooperateed with being added in PA6 composites to PP, PP/PA6 composites are obtained using melt blending injection,
PP and PA6 total mass fraction is 95% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 5%, PA6's and PP
Weight ratio is 1:3, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the ionic liquid is chlorination
1- pi-allyl -3- methylimidazoles, mass fraction is 4.9%, and the mass fraction of gas phase nano silica is 0.1%, melt blending
Shooting Technique condition is as follows：Screw speed is 25 r/min, and feed zone temperature is set to 170oC, fluxing zone temperature is 210oC, melts
It is 220 to melt section temperatureoC, then using micro-injection machine injection molding, wherein injecting head temperature 220oC, injection pressure is 0.5
MPa, injection time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 50oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 30.5 MPa, and elongation at break is 250%, surface electricity
Hinder for 1.0 × 108Ω。
Embodiment 2
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatibilization and toughening agent is cooperateed with being added in PA6 composites to PP, PP/PA6 composites are obtained using melt blending injection,
PP and PA6 total mass fraction is 85% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 15%, PA6 and PP
Weight ratio be 1:9, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the ionic liquid is chlorine
Change 1- butyl -3- methylimidazoles, mass fraction is 10%, the mass fraction of gas phase nano silica is 5%；Melt blending is molded
Process conditions are as follows：Screw speed is 25 r/min, and feed zone temperature is set to 165oC, fluxing zone temperature is 200oC, melt zone
Temperature is 210oC, then using micro-injection machine injection molding, wherein injecting head temperature 210oC, injection pressure is 0.5
MPa, injection time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 50oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 60.4 MPa, and elongation at break is 620.5%, surface
Resistance is 1.4 × 106Ω。
Embodiment 3
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatibilization and toughening agent is cooperateed with being added in PA6 composites to PP, PP/PA6 composites are obtained using melt blending injection,
PP and PA6 total mass fraction is 80% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 20%, PA6 and PP
Weight ratio be 2:3, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the ionic liquid is chlorine
Change 1- dodecyl -3- methylimidazoles, mass fraction is 15%, the mass fraction of gas phase nano silica is 5%；Melt blending
Shooting Technique condition is as follows：Screw speed is 25 r/min, and feed zone temperature is set to 160oC, fluxing zone temperature is 190oC, melts
It is 200 to melt section temperatureoC, then using micro-injection machine injection molding, wherein injecting head temperature 200oC, injection pressure is 0.5
MPa, injection time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 40oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 56.6 MPa, and elongation at break is 800%, surface electricity
Hinder for 1.0 × 105Ω。
Embodiment 4
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatibilization and toughening agent is cooperateed with being added in PA6 composites to PP, PP/PA6 composites are obtained using melt blending injection,
PP and PA6 total mass fraction is 90% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 10%, PA6 and PP
Weight ratio be 3:7, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the ionic liquid is 1-
PropyIpyridine hydrochloride, mass fraction is 8%, and the mass fraction of gas phase nano silica is 2%；Melt blending Shooting Technique bar
Part is as follows：Screw speed is 25 r/min, and feed zone temperature is set to 165oC, fluxing zone temperature is 205oC, melt zone temperature is
210 oC, then using micro-injection machine injection molding, wherein injecting head temperature 210oC, injection pressure is 0.5 MPa, injection
Time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 45oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 51.8 MPa, and elongation at break is 680%, surface electricity
Hinder for 4.2 × 106Ω。
Embodiment 6
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatibilization and toughening agent is cooperateed with being added in PA6 composites to PP, PP/PA6 composites are obtained using melt blending injection,
PP and PA6 total mass fraction is 85% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 15%, PA6 and PP
Weight ratio be 1:4, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the ionic liquid is 1-
Heptyl pyridine hydrochloride, mass fraction is 13%, and the mass fraction of gas phase nano silica is 2%；Melt blending Shooting Technique
Condition is as follows：Screw speed is 25 r/min, and feed zone temperature is set to 165oC, fluxing zone temperature is 200oC, melt zone temperature
For 205oC, then using micro-injection machine injection molding, wherein injecting head temperature 205oC, injection pressure is 0.5 MPa, note
The modeling time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 45oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 50.2 MPa, and elongation at break is 730%, surface electricity
Hinder for 1.2 × 106Ω。
Embodiment 7
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatibilization and toughening agent is cooperateed with being added in PA6 composites to PP, PP/PA6 composites are obtained using melt blending injection,
PP and PA6 total mass fraction is 80% wherein in mixed system, and the mass fraction of collaboration compatibilization and toughening agent is 20%, PA6 and PP
Weight ratio be 1:5, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon, and the ionic liquid is 1-
Octylpyridinium hydrochloride, mass fraction is 15%, and the mass fraction of gas phase nano silica is 5%；Melt blending Shooting Technique
Condition is as follows：Screw speed is 25 r/min, and feed zone temperature is set to 160oC, fluxing zone temperature is 190oC, melt zone temperature
For 200oC, then using micro-injection machine injection molding, wherein injecting head temperature 200oC, injection pressure is 0.5 MPa, note
The modeling time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 45oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 62.4 MPa, and elongation at break is 780%, surface electricity
Hinder for 3.5 × 105Ω。
Comparative example 1
The preparation method of the antistatic high tenacity PP/PA6 composites of the present embodiment, step is as follows：
Compatilizer is added into PP and PA6 composites, PP/PA6 composites are obtained using melt blending injection, wherein mixing
PP and PA6 total mass fraction is 95% in system, and the weight ratio that the mass fraction of compatilizer is 5%, PA6 and PP is 1:3, it is described
Compatilizer be ionic liquid, the ionic liquid be chlorination 1- pi-allyl -3- methylimidazoles；Melt blending Shooting Technique condition is such as
Under：Screw speed is 25 r/min, and feed zone temperature is set to 170oC, fluxing zone temperature is 210oC, melt zone temperature is 220oC, then using micro-injection machine injection molding, wherein injecting head temperature 220oC, injection pressure is 0.5 MPa, injection time
For 5 s, the conjunction film time is 15 s, closes film chilling temperature 50oC。
The tensile strength of the PP/PA6 composites of the present embodiment is 24.15 MPa, and elongation at break is 91.7%, surface
Resistance is 7.8 × 107Ω。
It can be seen that by embodiment and comparative example and compatilizer be only used as by ionic liquid, to PP/PA6 composites
Compatibility has some improvement, but limited to the improvement result of composite material toughness, and passes through ionic liquid and gas phase nano
Silicas's collaboration can then significantly improve the compatibility of PP/PA6 composites as compatibilization and toughening agent, while can be big
Amplitude improves the toughness of composite.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The skill of the industry
Art personnel are it should be appreciated that the present invention is not limited to the above embodiments, and described in above-described embodiment and specification is explanation
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (5)
1. a kind of preparation method of antistatic high tenacity PP/PA6 composites, it is characterised in that step is as follows：It is multiple to PP/PA6
Collaboration compatibilization and toughening agent is added in condensation material, antistatic high tenacity PP/PA6 composites are obtained using melt blending injection, its
The mass fraction that middle PP and PA6 account for composite is 80-95%, and the mass fraction that collaboration compatibilization and toughening agent accounts for composite is 5-
20%。
2. the preparation method of antistatic high tenacity PP/PA6 composites according to claim 1, it is characterised in that：It is described
PA6 and PP mass ratio be 1:9-2:3, described collaboration compatibilization and toughening agent is ionic liquid and gas phase nano silicon
The mass fraction that mixture, wherein ionic liquid account for composite is 4.9-15%, and gas phase nano silica accounts for composite
Mass fraction is 0.1-5%.
3. the preparation method of antistatic high tenacity PP/PA6 composites according to claim 1, it is characterised in that：It is described
The cation for cooperateing with compatibilization and toughening agent intermediate ion liquid is imidazoles, pyridines, and anion is chlorion, gas phase nano titanium dioxide
Silicon grain footpath is 7-12 nm, and specific surface area is 200-400 m2/g。
4. the preparation method of antistatic high tenacity PP/PA6 composites according to claim 1, it is characterised in that：It is described
Screw speed is 25 r/min during melt blending, and feed zone temperature is set to 160-170oC, fluxing zone temperature is 190-210oC,
Melt zone temperature is 200-220oC, then using micro-injection machine injection molding, wherein injecting head temperature 200-220oC, note
Blow pressure is 0.5 MPa, and injection time is 5 s, and the conjunction film time is 15 s, closes film chilling temperature 40-50oC。
5. resisted according to made from the preparation method of any described antistatic high tenacity PP/PA composites of claim 1 ~ 4 quiet
The elongation at break of electric high tenacity PP/PA6 composites is 250%-800%, and sheet resistance is 105-108Ω。
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