CN102796312A - High-density polyethylene/polyamide 66 lamination barrier nano composite material and preparation method thereof - Google Patents
High-density polyethylene/polyamide 66 lamination barrier nano composite material and preparation method thereof Download PDFInfo
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- CN102796312A CN102796312A CN2012102736627A CN201210273662A CN102796312A CN 102796312 A CN102796312 A CN 102796312A CN 2012102736627 A CN2012102736627 A CN 2012102736627A CN 201210273662 A CN201210273662 A CN 201210273662A CN 102796312 A CN102796312 A CN 102796312A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
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Abstract
The invention discloses a high-density polyethylene/polyamide 66 lamination barrier nano composite material. High-density polyethylene and modified polyamide 66 are dried and mixed simply to obtain a dry mixture, and the dry mixture is directly made into the high-density polyethylene/polyamide 66 lamination barrier nano composite material through blow molding. The high-barrier high-density polyethylene/polyamide 66 lamination barrier nano composite material is simple in preparation process and can be prepared on a common forming machine. The high-density polyethylene/polyamide 6 lamination barrier nano composite material comprises the following raw materials in parts by weight: 60-95 parts of high-density polyethylene and 5-40 parts of modified polyamide 66, wherein the modified polyamide 66 comprises the following raw materials in parts by weight: 60-95 parts of polyamide 66, 5-40 parts of ethylene and acrylate ionomer and 1-5 parts of organic montmorillonite. The high-density polyethylene/polyamide 66 lamination barrier nano composite material provided by the invention has excellent barrier property and can be used in lots of fields.
Description
Technical field
The invention belongs to field of materials, be specifically related to a kind of macromolecular material with excellent barrier properties, is a kind of high density polyethylene(HDPE) (HDPE)/polyamide 66 (PA66) lamination barrier nano composite material and preparation method thereof.
Background technology
Along with the enhancing of science and technology development and environmental consciousness, macromolecular material occupies more and more important position at packaging field, and it is compared with Traditional Packing materials such as metal and glass, has light weight, easy-formation processing, advantage such as cracky not.
That general wrapping material high density polyethylene(HDPE) (HDPE) has is cheap, processing characteristics is excellent, and physics and chemical property are all good, simultaneously water isopolarity solvent are had good barrier, therefore is widely used in wrapping material.Though high density polyethylene(HDPE) has good barrier performance to water isopolarity solvent; But serious seepage can take place in high density polyethylene(HDPE) when storing non-polar solvent (like the xylene solvent of dissolving agricultural chemicals etc.) or polarity and nonpolar mixed solvent (like the solvent of gasoline, solvent based coating, thinner etc.); The seepage discharging of these volatile organic compoundss (VOC) can cause environment to receive very big pollution; And high density polyethylene(HDPE) is poor to the gas barrier property of oxygen, and these have all limited the application of this material.
Polyamide 66 (PA66) has HS, good thermotolerance, wear resistance; And it has high gas barrier property to oxygen, carbonic acid gas and hydrocarbon organic solvent; But its price is high, and very sensitive to moisture, this polymkeric substance gas barrier property in wet environment obviously descends; And the melt strength of polyamide 66 is low, is difficult to direct blow molding.Through both are carried out the stratiform blend, can make the strong layered material of comprehensive barrier, be used in packaging field.
Polynite is a kind of clay that is made up of the silicate lamella of nano thickness, and sheet interlayer spacing is 0.96～2.1nm.Polynite is filled in high density polyethylene(HDPE)/polyamide 66 matrix through the intercalation composite methods, realizes compound on nanoscale of polynite and matrix resin.Because the nanometer small-size effect bonding interface of becoming reconciled, this matrix material have excellent mechanical property and thermotolerance, and its barrier property and weathering resistance all increase.
Preparation high barrier macromolecular material mainly contains three kinds of methods:
First method is that in type vessel prepd internal surface is carried out special processing, as fluoridizes or the sulfonation processing, improves its barrier property to organic solvent, present method is had illustrated like Chinese patent CN200410083959.2.But this surface-treated method, cost of investment is high, and fluorizating agent or sulphonating agent are poisonous, and human body and environment are harmful to.
Second method is to adopt multi-layer co-extruded technology, makes to form multilayered structure in the wall of container, to improve its barrier property; Provide multi-layer co-extruded technology to come article of manufacture like Chinese patent CN201020101787.8, CN201020625545.9; But this method complex process, cost is high, and scrap stock reclaim difficulty; The made membrane goods are easy, the container made difficulty.
The third method is the method that the lamination blend intercepts; This method is utilized blend such as matrix polymer, separating polymer, auxiliary agent; Cooperate suitable molding technological condition to make product; Can form in goods that multilayer is parallel to each other, discontinuous obstruct phase, can greatly improve the barrier property of goods organic solvent.Chinese patent CN200610102138.8 has announced through nylon, ethylene-vinyl alcohol copolymer, the blend of superoxide dynamic vulcanization and has prepared barrier material; CN01106697.0 has announced that Vilaterm, nylon, nylon grafted ethene-vinyl alcohol copolymer prepare barrier material.
Summary of the invention
Deficiency to the prior art existence; The object of the invention adopts the method for dry mixed that high density polyethylene(HDPE) (HDPE) is simply mixed with modified polyamide 66 (MPA66); Obtain doing mixed thing; Directly be blow molded into required goods, high barrier high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material that a kind of preparation technology is simple, can on common forming machine, implement is provided.
For achieving the above object, the present invention adopts following scheme:
A kind of high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material is formed by the feedstock production of following weight part:
High density polyethylene(HDPE) (HDPE), 60～95 parts;
Modified polyamide 66 (MPA66), 5～40 parts;
Said modified polyamide 66 (MPA66) is formed by the feedstock production of following weight part:
Polyamide 66 (PA66), 60～95 parts;
Ethene and acrylic acid or the like ionomer (M-E/AA), 5～40 parts;
Organo montmorillonite (OMMT), 1～5 part.
Among some embodiment, said ethene and acrylic acid or the like ionomer (M-E/AA) are therein: the zinc salt (Zn-E/MAA) of sodium salt (Na-E/MAA), ethene and the Sipacril 2739OF of zinc salt (Zn-E/AA), ethene and the Sipacril 2739OF of the sodium salt of ethene and PEMULEN TR2 (Na-E/AA), ethene and PEMULEN TR2;
Its reaction equation is:
Wherein, R is methyl or hydrogen.
Another object of the present invention provides the preparation method of above-specified high density Vilaterm/polyamide 66 lamination barrier nano composite material;
The preparation method of above-specified high density Vilaterm/polyamide 66 lamination barrier nano composite material may further comprise the steps:
1., at first, preparation modified polyamide 66 (MPA66), the preparation process is:
1.-1, the polyamide 66 (PA66) and the organo montmorillonite (OMMT) of above-mentioned weight part carried out drying treatment in vacuum drying oven, oven temperature is at 80～100 ℃, dry 4～12 hours;
1.-2, the ethene and the acrylic acid or the like ionomer (M-E/AA) of above-mentioned weight part carried out drying treatment in vacuum drying oven, oven temperature is at 60～80 ℃, dry 4～12 hours;
After polyamide 66 (PA66), ethene and acrylic acid or the like ionomer (M-E/AA) and the organo montmorillonite (OMMT) that 1.-3, will pass through drying treatment mixes in proportion; Place that parallel double-screw extruder melt extrudes, granulation, obtain modified polyamide 66 (MPA66);
2., secondly, with the high density polyethylene(HDPE) (HDPE) of above-mentioned weight part and modified polyamide 66 (MPA66) in vacuum drying oven 70～100 ℃, after dry 4～12 hours, mix in proportion to obtain doing and mix thing;
3., once more, will do mixed thing blowing in the slush molding machine and process 250mL sample plasma bottle usefulness to be tested, wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 260～270 ℃, rotating speed is 200～300r/min;
Said parallel double-screw extruder complete processing is following:
The parallel double-screw extruder screw speed is 50～500r/min; Parallel double-screw squeezes and is provided with seven temperature controlled region, wherein, and 210～250 ℃ of district's temperature; 250～280 ℃ of two district's temperature, 250～280 ℃ of three district's temperature, 250～280 ℃ of four district's temperature; 250～280 ℃ of five district's temperature; 250～280 ℃ of six district's temperature, 250～280 ℃ of seven district's temperature, 250～280 ℃ of die head temperatures.
Among some embodiment, the screw rod of said twin screw extruder is shaped as single thread therein; The ratio (L/D) of spiro rod length (L) and diameter (D) is 20～60, preferred 35～60.
Among some embodiment, said screw rod has more than one gear block district therein, preferred 2 gear block districts, and the gear block district helps material in forcing machine, to mix more evenly; Said screw rod has more than one left-hand thread district, preferred 2 left-hand thread districts, and the left-hand thread district helps material in forcing machine, to mix more evenly, and can prolong the time that material stops in forcing machine, makes that reaction is more abundant.
High density polyethylene(HDPE) provided by the present invention/polyamide 66 lamination barrier nano composite material has the following advantages:
1, adopt method of the present invention to prepare high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material, compatibilization effect is remarkable, and interfacial adhesion is significantly improved, and barrier property is excellent.
2, adopt method of the present invention to prepare high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material, its technology is simple, is easy to control, and not high to equipment requirements, employed equipment is general polymer processing equipment, invests not high.
3, adopt method of the present invention to prepare high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material, shortened technical process, save the energy, improved production efficiency, be easy to apply.
4, lamination barrier nano composite material provided by the invention can be used in a plurality of fields, in the pesticides packaging field: be used to produce pesticide bottle; Aspect solvent based coating and thinner, be used to produce paint can and thinner bottle; Aspect automobile, can be used for producing the fuel tank of automobile; Aspect makeup, can be used for producing the hose packing of makeup; Aspect food product pack, can be used for production packaging films for food products and hose packing.
Description of drawings
Shown in Figure 1 is that the embodiment of the invention 3 is the sem photograph of 250mL sample plasma bottle bottle wall section;
Shown in Figure 2 is obstruct principle schematic of the present invention;
Shown in Figure 3 is the schematic flow sheet of the embodiment of the invention.
Embodiment
The reaction process synoptic diagram of high density polyethylene(HDPE) of the present invention/polyamide 66 lamination barrier nano composite material is asked for an interview Fig. 3, and the employed raw material of the embodiment of the invention is following:
Polyamide 66 (PA66) is available from toray, trade mark CM3001-N;
The zinc salt of ethene and Sipacril 2739OF (Zn-E/MAA) is available from du pont company, trade mark Surlyn8920;
Organo montmorillonite (OMMT) is available from Zhejiang Feng Hong novel material limited-liability company, trade mark DK5;
High density polyethylene(HDPE) (HDPE) is available from Sinopec Beijing Yanshan Petrochemical Company, trade mark 5000S;
At first carry out the preparation of modified polyamide 66 (MPA66):
With polyamide 66 (PA66) and organo montmorillonite (OMMT) 90 ℃ of dryings 6 hours in vacuum drying oven, the zinc salt of ethene and Sipacril 2739OF (Zn-E/MAA) 70 ℃ of dryings 6 hours in vacuum drying oven.PA66, Zn-E/MAA and OMMT by weight for after 85:15:3 mixes, are placed that parallel double-screw extruder melt extrudes, granulation, obtain modified polyamide 66 (MPA66).
Complete processing is following: the parallel double-screw extruder screw speed is 300r/min, 210 ℃ of district's temperature, 250 ℃ of two district's temperature; 260 ℃ of three district's temperature, 265 ℃ of four district's temperature, 270 ℃ of five district's temperature; 270 ℃ of six district's temperature, 265 ℃ of seven district's temperature, 265 ℃ of die head temperatures.
Comparative example 1:
With high density polyethylene(HDPE) (HDPE) 80 ℃ of dryings after 8 hours in vacuum drying oven; 250mL sample plasma bottle usefulness to be tested is processed in blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1; The temperature of slush molding is 265 ℃, and rotating speed is 250r/min.
Comparative example 2:
High density polyethylene(HDPE) (HDPE) and polyamide 66 (PA66) 80 ℃ of dryings in vacuum drying oven are mixed for 85:15 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Embodiment 1:
High density polyethylene(HDPE) (HDPE) and modified polyamide 66 (MPA66) 80 ℃ of dryings in vacuum drying oven are mixed for 95:5 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Embodiment 2:
HDPE and MPA66 80 ℃ of dryings in vacuum drying oven are mixed for 90:10 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Embodiment 3:
HDPE and MPA66 80 ℃ of dryings in vacuum drying oven are mixed for 85:15 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Embodiment 4:
HDPE and MPA66 80 ℃ of dryings in vacuum drying oven are mixed for 80:20 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Embodiment 5:
HDPE and MPA66 80 ℃ of dryings in vacuum drying oven are mixed for 75:25 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Embodiment 6:
HDPE and MPA66 80 ℃ of dryings in vacuum drying oven are mixed for 70:30 after 8 hours by weight;
250mL sample plasma bottle usefulness to be tested is processed in the premix that mixes blowing in the slush molding machine, and wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 265 ℃, rotating speed is 250r/min.
Below be comparative example and embodiment table look-up:
Table 1 comparative example parts by weight of raw materials table look-up
| Comparative example | HDPE (part) | PA66 (part) |
| Comparative example 1 | 100 | 0 |
| Comparative example 2 | 85 | 15 |
Table 2 embodiment parts by weight of raw materials table look-up
| Embodiment | HDPE (part) | MPA66 (part) |
| Embodiment 1 | 95 | 5 |
| Embodiment 2 | 90 | 10 |
| Embodiment 3 | 85 | 15 |
| Embodiment 4 | 80 | 20 |
| Embodiment 5 | 75 | 25 |
| Embodiment 6 | 70 | 30 |
The made sample of above-mentioned each embodiment is carried out following performance test:
The mensuration of infiltration rate: the 200g YLENE of in the 250mL sample plasma bottle, packing into, place 25 ℃ room temperature 14 days, the MV of measuring and calculating infiltration capacity every day promptly obtains infiltration rate.
Day solvent infiltration capacity/14, infiltration rate=14 day
The mensuration of impact property: dress 200mL water in the sample plasma bottle that hollow blow molding is processed, tighten bottle cap, highly freely fall in 1.5 meters.
Table 3 comparative example and embodiment performance table look-up
Annotate: (a) Not Breaking (b) Breaking
The sem photograph of the 250mL sample plasma bottle bottle wall section of the embodiment of the invention 3 is referring to Fig. 1; Obstruct principle schematic of the present invention is referring to Fig. 2; The embodiments of the invention flow process is referring to Fig. 3.
The present invention provides high barrier high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material that a kind of preparation technology is simple, can on common forming machine, implement; Adopt the method for dry mixed that high density polyethylene(HDPE) is simply mixed with modified polyamide 66; Obtain doing and mix thing, directly be blow molded into required goods.The present invention is through polyamide 66 and the high density polyethylene(HDPE) blend that a small amount of anti-varsol seepage property is splendid; At first make polyamide 66 be Particle Distribution in the external phase of high density polyethylene(HDPE); Shear-stress during then by moulding; Make polyamide 66 in high density polyethylene(HDPE) matrix external phase, form the lamination structure (multilayer chip structure) that is parallel to wall of container, solvent will see through wall of container, must walk around multilayer eclipsed barrier layer; Thereby reduce the solvent infiltration rate greatly, obtain having the plastic containers of high barrier.
The above embodiment has only expressed several kinds of embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
Claims (5)
1. high density polyethylene(HDPE)/polyamide 66 lamination barrier nano composite material is characterized in that, is formed by the feedstock production of following weight part:
High density polyethylene(HDPE), 60～95 parts;
6,5～40 parts of modified polyamide 6s;
Said modified polyamide 66 is formed by the feedstock production of following weight part:
Polyamide 66,60～95 parts;
Ethene and acrylic acid or the like ionomer, 5～40 parts;
Organo montmorillonite, 1～5 part.
2. high density polyethylene(HDPE) according to claim 1/polyamide 66 lamination barrier nano composite material; It is characterized in that said ethene and acrylic acid or the like ionomer are: the zinc salt of the sodium salt of the zinc salt of the sodium salt of ethene and PEMULEN TR2, ethene and PEMULEN TR2, ethene and Sipacril 2739OF, ethene and Sipacril 2739OF;
Its reaction equation is:
Wherein, R is methyl or hydrogen.
3. a method for preparing each said high density polyethylene(HDPE) of claim 1～2/polyamide 66 lamination barrier nano composite material is characterized in that, may further comprise the steps:
1., at first, preparation modified polyamide 66, the preparation process is:
1.-1, the polyamide 66 and the organo montmorillonite of said weight part carried out drying treatment in vacuum drying oven, oven temperature is at 80～100 ℃, dry 4～12 hours;
1.-2, ethene and the acrylic acid or the like ionomer with said weight part carries out the drying treatment oven temperature at 60～80 ℃, dry 4～12 hours in vacuum drying oven;
1.-3, after polyamide 66, ethene and acrylic acid or the like ionomer and the organo montmorillonite that will pass through drying treatment mix in proportion, place that parallel double-screw extruder melt extrudes, granulation, obtain modified polyamide 66;
2., secondly, with the high density polyethylene(HDPE) of said weight part and modified polyamide 66 in vacuum drying oven 70～100 ℃, after dry 4～12 hours, mix in proportion and obtain doing mixed thing;
3., once more, will do mixed thing blowing in the slush molding machine and process 250mL sample plasma bottle usefulness to be tested, wherein sample plasma bottle bottle wall thickness is 1mm, blow-up ratio>1, the temperature of slush molding is 260～270 ℃, rotating speed is 200～300r/min;
Said parallel double-screw extruder complete processing is following:
The parallel double-screw extruder screw speed is 50～500r/min; Parallel double-screw squeezes and is provided with seven temperature controlled region, wherein, and 210～250 ℃ of district's temperature; 250～280 ℃ of two district's temperature, 250～280 ℃ of three district's temperature, 250～280 ℃ of four district's temperature; 250～280 ℃ of five district's temperature; 250～280 ℃ of six district's temperature, 250～280 ℃ of seven district's temperature, 250～280 ℃ of die head temperatures.
4. preparation method according to claim 3 is characterized in that the screw rod of said twin screw extruder is shaped as single thread, and the ratio L/D of spiro rod length L and diameter D is 20～60.
5. preparation method according to claim 3 is characterized in that, said screw rod has more than one gear block district, and said screw rod has more than one left-hand thread district.
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| EP4122692A1 (en) * | 2021-07-21 | 2023-01-25 | Fibron Pipe GesmbH | Plastic composition, plastic pipe, use and manufacturing method |
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|---|---|---|---|---|
| CN1989196A (en) * | 2004-07-21 | 2007-06-27 | Lg化学株式会社 | Gas-barrier nanocomposite composition and article using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989196A (en) * | 2004-07-21 | 2007-06-27 | Lg化学株式会社 | Gas-barrier nanocomposite composition and article using the same |
Non-Patent Citations (2)
| Title |
|---|
| 《中国优秀博硕士学位论文全文数据库（博士）工程科技I辑》 20060713 蒋涛 "聚乙烯/尼龙积层阻隔性材料制备工艺及性能研究" B016-11（1-104） 1-5 , 第07期 * |
| 蒋涛: ""聚乙烯/尼龙积层阻隔性材料制备工艺及性能研究"", 《中国优秀博硕士学位论文全文数据库（博士）工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4122692A1 (en) * | 2021-07-21 | 2023-01-25 | Fibron Pipe GesmbH | Plastic composition, plastic pipe, use and manufacturing method |
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Application publication date: 20121128 |