CN106928625A - A kind of bottle stage polypropylene material and preparation method and application - Google Patents
A kind of bottle stage polypropylene material and preparation method and application Download PDFInfo
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2203/00—Applications
- C08L2203/10—Applications used for bottles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
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Abstract
The invention provides a kind of bottle stage polypropylene material and preparation method and application.The raw material composition of this bottle of stage polypropylene material includes：The weight portion of acrylic resin 100, polyvinyl resin 5-50 weight portions, antioxidant 0.05-0.5 weight portions, plumper 0.01-5 weight portions.The preparation method of this bottle of stage polypropylene material is that the mixed material of acrylic resin, polyvinyl resin, antioxidant, plumper is melted under conditions of 110-260 DEG C, 3-15MPa, then after twin screw or single screw extruder is extruded, cooling granulation is carried out, this bottle of stage polypropylene material is obtained.Present invention also offers the application in this bottle of stage polypropylene material aborning empty product.This bottle of stage polypropylene material compared with plain polypropylene material, with the melt strength, outlet expansion, the impact flexibility that significantly improve, it is adaptable to the packaging field with the directly contact such as food, beverage.
Description
Technical field
The invention belongs to technical field of polymer materials, more particularly to a kind of bottle stage polypropylene material and preparation method thereof with
Using.
Background technology
Acrylic resin belongs to one of conventional 5 big resins for universal use, and compared with other general-purpose thermoplastic plastics, it has original
The advantages of expecting small abundant, cheap, relative density, proof stress, good resistant to chemical etching, wearability.Polypropylene tree
Fat is the best product of heat resistance in resins for universal use, is widely used in commodity, textile, auto parts and components and part
The general fields such as medical apparatus making.In recent years, also been developed using polypropylene material and blow molding process,
The application of the frontiers such as production milk bottle, beverage bottle.Compared with conventional blow moulded polyethyene bottle, polypropylene material rigidity
Preferably, product is relatively preferable in high-temperature bearing ability for relatively strong, heat resistance；But have that melt strength is poor, be difficult inflation,
And bottle impact resistance it is poor, easily occur low temperature fall cracking or stress whitening situation.
Polypropylene modification can be divided into two kinds of chemical modification and physical modification.Chemical modification be mainly by copolymerization, grafting,
The modes such as crosslinking, change polyacrylic molecular structure to reach modified purpose；Physical modification then in whole process not
Chemically react, inorganic material, organic material, other plastics, rubber, heat are added in PP matrix
Thermoplastic elastic has addition auxiliary agent of specific function etc., is obtained with excellent by means such as blending, enhancing or fillings
The PP composite material of performance.
Hollow polypropylene processability is modified at present, mainly by expanding extruder extrusion neck ring mold, reducing polypropylene material
Expect the blow-up ratio during hollow molding, improve the thickness uniformity of bottle, reduction is wanted to melt strength of polypropylene
Ask；Meanwhile, after bottle shaping, bottleneck waste material is cut by die-cutting apparatus.But the method exist bottleneck spue line it is thick,
The more problem of bottleneck waste material.
Around polypropylene modified material, people have carried out many research work.Majority is using surface modified high-molecular amount
Polytetrafluoroethylene (PTFE) increases the die swelling ratio and melt strength of composite, or increases compound using thermoplastic elastomer (TPE)
The toughness of material, is primarily adapted for use in injection molding process, such as bumper machine-shaping.But these method of modifying are not
Suitable for blow molding process, such as bottle, the processing and manufacturing of bucket extrusion blow container, this is mainly due in polypropylene material
It is middle to add polytetrafluoroethylene (PTFE) or thermoplastic elastomer (TPE), cause cost to be significantly increased, and technique is relative complex, energy consumption is higher.
The content of the invention
In view of this, it is an object of the invention to provide a kind of bottle stage polypropylene material and preparation method and application.Should
Polypropylene material has preferable melt strength and die swelling performance.
To reach above-mentioned purpose, the invention provides a kind of bottle stage polypropylene material, its raw material composition includes：
This bottle of stage polypropylene material be at least by above-mentioned raw materials by being at least blended, melting, the step such as extruding pelletization and make
For what is obtained.
In above-mentioned bottle stage polypropylene material, it is preferable that the acrylic resin is including melt index
One or more polypropylene of 0.1-20g/10min (230 DEG C).It is highly preferred that the acrylic resin includes melting
Index is one or more polypropylene of 0.1-1.0g/10min (230 DEG C).Particularly preferably, the acrylic resin
It is the block copolymerization polypropylene of 0.1-1.0g/10min (230 DEG C) including melt index, wherein block copolymerization polypropylene can
To be by content as the propylene of 80-90% (weight) and the polyproplyene block for being formed of about 10-20% (weight) ethene
Copolymer.
In above-mentioned bottle stage polypropylene material, it is preferable that the polyvinyl resin is including melt index
One or more polyethylene of 0.1-20g/10min (190 DEG C).It is highly preferred that the polyvinyl resin includes melting
Index is the high density polyethylene (HDPE) of 0.1-1.0g/10min (190 DEG C).
In above-mentioned bottle stage polypropylene material, it is preferable that the antioxidant include model 1010,1076,1098,
1790th, 1425,330,3114,168,626,618,259,245, the 440, antioxidant such as DPPD, TNP
In the combination of one or more, or the combination of one or more in these antioxidant and polypropylene (PP), poly- second
The composition of one or more carriers in alkene (PE), polystyrene (PE) etc..
In above-mentioned bottle stage polypropylene material, it is preferable that the plumper includes Metallic stearates and/or synthetic water
Talcum etc..It is highly preferred that the Metallic stearates include zinc stearate and/or calcium stearate etc..
In above-mentioned bottle stage polypropylene material, it is preferable that acrylic resin：Polyvinyl resin：Antioxidant：Plumper
Weight ratio be 100:(10-30):(0.1-0.3):(0.1-0.3).
Specific embodiment of the invention, it is preferable that the bottle stage polypropylene material is through the following steps that prepare
Obtain：
Acrylic resin, polyvinyl resin, antioxidant, plumper are mixed in proportion, a mixed material is obtained；
The mixed material is melted under conditions of 110-260 DEG C, 3-15MPa, then by twin-screw or single spiral shell
After bar extruder extrusion, cooling granulation is carried out, obtain described bottle stage polypropylene material.
Wherein, acrylic resin, polyvinyl resin, antioxidant, plumper are mixed in proportion can be using mixed
Material machine is carried out, and the temperature of mixing, time and pressure can carry out conventional adjustment by those skilled in the art.This 4
The hybrid mode for planting raw material first can for example be mixed antioxidant with plumper and acrylic resin, so with variation
Mix with polyvinyl resin again afterwards；A part of antioxidant can also be mixed with plumper and acrylic resin, will be another
Part antioxidant mixes with plumper and polyvinyl resin, then the mixed material of the two is melted.
Wherein it is preferred to, the temperature of melting is 180-240 DEG C.
The bottle stage polypropylene material that the present invention is provided using low melt index the good melt strength of polyvinyl resin and
Die swelling performance, carries out physical modification to the latter, under polyethylene molten condition by with acrylic resin melt blending
Mutually wound with polypropylene molecular chain, it is possible to increase the melt strength of acrylic resin and improve acrylic resin from mould
Expansion character, makes it in the case where extruding dies are constant, increases the diameter of melt extrusion base pipe, in reduction base pipe
Blow-up ratio in empty forming process.Simultaneously as melt strength increases, base pipe is difficult to be blown brokenly or occurs in blowing process
The situation of became uneven.Further, since polyvinyl resin has preferable impact flexibility, can effectively solve the problem that bottle should
The problems such as power is turned white, falls breakage.
On the other hand, present invention also offers a kind of preparation method of above-mentioned bottle stage polypropylene material, the preparation method bag
Include following steps：
Acrylic resin, polyvinyl resin, antioxidant, plumper are mixed in proportion, a mixed material is obtained；
The mixed material is melted under conditions of 110-260 DEG C, 3-15MPa, then by twin-screw or single spiral shell
After bar extruder extrusion, cooling granulation is carried out, obtain described bottle stage polypropylene material.
In above-mentioned preparation method, wherein, by acrylic resin, polyvinyl resin, antioxidant, plumper in proportion
Well mixed to be carried out using batch mixer, the temperature of mixing, time and pressure can be entered by those skilled in the art
The conventional adjustment of row.This 4 kinds of hybrid modes of raw material can with variation, for example can first by antioxidant and plumper and
Acrylic resin mixes, and then mixes with polyvinyl resin again；Can also be by a part of antioxidant and plumper and poly- third
Olefine resin mixes, and another part antioxidant is mixed with plumper and polyvinyl resin, then the mixed material of the two is entered
Row melting.
In above-mentioned preparation method, it is preferable that the temperature of melting is 180-240 DEG C.
Additionally, present invention also offers the application in above-mentioned bottle stage polypropylene material aborning empty product.
In above-mentioned application, it is preferable that the bottle stage polypropylene material can mix individually or with the other materials such as color masterbatch
It is used to produce the hollow product afterwards.Wherein color masterbatch can be using the conventional color masterbatch material in this area.The bottle level poly- third
The part by weight of the color masterbatch is added in alkene material for 0.5-10% (is with the gross weight of color masterbatch with bottle stage polypropylene material
Benchmark), for producing the hollow product after being well mixed.
In above-mentioned application, it is preferable that the hollow product includes the product such as bottle, bucket.It is highly preferred that described hollow
Product is including bottle, bucket etc. for food, the product in beverage packaging field.
Beneficial effects of the present invention mainly include：The present invention provide bottle stage polypropylene material compared with before modified, material
Melt strength is high, die swelling big, can the inflation shaping under conditions of less mouth mold, blow-up ratio higher；System
Product have preferable toughness, and stress whitening and low temperature fall cracking performance preferably improvement；Simultaneously as selection is normal
Safe material, designed using more succinct formula, it is ensured that material is used safely in food, beverage packaging field,
Harmful substance is avoided to migrate influence content mouthfeel and bring food-safety problem.
Brief description of the drawings
Fig. 1 is the preparation method flow chart of the bottle stage polypropylene material of the embodiment of the present invention.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and beneficial effect, now to skill of the invention
Art scheme carry out it is described further below, but it is not intended that to it is of the invention can practical range restriction.
Embodiment 1
It is raw materials used commercially available, as the acrylic resin of matrix resin for melt index is 0.6g/10min
The block copolymerization polypropylene particle of (230 DEG C), the block copolymerization polypropylene be by content for 90% (weight) third
The polypropylene block copolymer of the formation of alkene and 10% (weight) ethene；
Polyvinyl resin is that melt index is the high density polyethylene (HDPE) particle of 0.26g/10min (190 DEG C)；
Antioxidant is selected from model 1010, the compound of 1076 antioxidant, and the wherein antioxidant content of model 1010 is
500ppm, the antioxidant of model 1076 is 1000ppm, balance of polypropylene carrier；
Plumper is zinc stearate.
As shown in figure 1, under 20 ± 5 DEG C of environment temperature, weighing 10 kilograms of melt index for 0.6g/10min
The block copolymerization polypropylene particle of (230 DEG C) and according to block copolymerization polypropylene：High density polyethylene (HDPE)：Antioxidant：
The weight ratio of plumper is 100：20：0.05：0.1 proportioning weigh appropriate high density polyethylene (HDPE) particle, antioxidant,
Plumper, makes them be well mixed in batch mixer；Then mixed material is put into the spout of double screw extruder,
After equipment is preheated, it is 180-240 DEG C (wherein die temperature is 210-218 DEG C), melt pressure to preset melt temperature
It is 5MPa.After start, mixed material enters extruder, after reaching certain mobility, open cooling bath water with
And forced air drying equipment；The strip melt of extruding dies outlet is cooled down in cooling bath, and by roller traction to making
Grain machine cutting granulation, the particle after granulation is delivered to forced air drying equipment and is dried by wind, and dried particle passes through
Packed after vibratory sieve screening, prepare the bottle stage polypropylene material of the present embodiment.
The bottle stage polypropylene material that will be prepared (is with the gross weight of color masterbatch with bottle stage polypropylene material with color masterbatch
Benchmark, the content of color masterbatch is 2%) to be stirred by artificial or machine, into extrusion machine inlet, by spiral shell
After bar plasticizing, base pipe is extruded, and enter bottle blowing mould, bottle blowing mould matched moulds simultaneously blocks base pipe using cutting knife, then leads to
Cross equipment and insert pen and be blown into the compressed air of 8 ± 1bar, base pipe inflation is simultaneously close to mould, cooling and shaping, as can pack
The polypropylene containers of food, beverage.
The poly- third class material of bottle level and the unmodified melt index that the present embodiment is prepared are 0.6g/10min (230 DEG C)
Block copolymerization polypropylene material the contrast of physical index situation it is as shown in table 1.
Table 1
With the bottle poly- third class material of level obtained in the present embodiment, by hollow bottle obtained in extrusion blow technique, refer to compared with melting
Number is the high-density polyethylene material of 0.26g/10min (190 DEG C), by hollow bottle obtained in extrusion blow technique, longitudinal direction
Resistance to compression is significantly improved, and refers to table 2 below.
Table 2
| Material | Crushing force 1 | Crushing force 2 | Crushing force 3 | Averagely |
| HDPE | 325.09N | 324.99N | 310.83N | 320.31N |
| MODIFIED PP | 364.45N | 371.60N | 377.49N | 371.18N |
With the bottle stage polypropylene material obtained in the present embodiment compared with the block that melt index is 0.6g/10min (230 DEG C)
COPP material, the ratio of briquetting for manufacturing hollow bottle by extrusion blow technique is greatly improved, and making in site 500 is hollow
Bottle, the bottle stage polypropylene material bottle blowing moulding rate obtained in the present embodiment is 100%, and melt index is 0.6g/10min
The phenomenon that the block copolymerization polypropylene material bottle blowing hollow bottle of (230 DEG C) occurs that wall unevenness is even, blows brokenly, shaping
Rate is only 54%.
As a comparison, by the raw materials melt index in the present embodiment for the block copolymerization of 0.6g/10min (230 DEG C) gathers
Propylene particle, replaces with melt index for 6g/10min (230 DEG C) polypropylene particles, other raw materials and preparation method
Constant, ratio of briquetting of the polypropylene material that discovery is prepared in bottle blowing is less than 1%.
As a comparison, it is the high-density polyethylene of 0.26g/10min (190 DEG C) by the raw materials melt index in the present embodiment
Alkene particle, replaces with melt index for 2g/10min (190 DEG C) low density polyethylene (LDPE) particle, other raw materials and preparation
Method is constant, the phenomenon that the polypropylene material that discovery is prepared occurs that wall unevenness is even in bottle blowing, blows brokenly, into
Type rate is less than 20%.
Embodiment 2
It is raw materials used commercially available, as the acrylic resin of matrix resin for melt index is 0.6g/10min
The block copolymerization polypropylene powder of (230 DEG C), the block copolymerization polypropylene be by content for 80% (weight) third
The polypropylene block copolymer of the formation of alkene and 20% (weight) ethene；
Polyvinyl resin is that melt index is the high-density polyethylene powder of 0.26g/10min (190 DEG C)；
Antioxidant is selected from model 1076, the compound of 618 model antioxidant, the wherein antioxidant content of model 1076
It is 1000ppm, the antioxidant of model 618 is 1000ppm, balance of polypropylene carrier；
Plumper is zinc stearate.
As shown in figure 1, under 20 ± 5 DEG C of environment temperatures, weighing 10 kilograms of melt index for 0.6g/10min (230 DEG C)
Block copolymerization polypropylene powder and according to block copolymerization polypropylene：High density polyethylene (HDPE)：Antioxidant：Plumper
Weight ratio is 100：50：0.05：0.1 proportioning weighs appropriate high-density polyethylene powder, antioxidant, plumper,
Them are made to be well mixed in batch mixer；Then mixed material is put into the spout of double screw extruder, equipment is through pre-
After heat, it is 180-240 DEG C (wherein die temperature is 210-218 DEG C) to preset melt temperature, and melt pressure is 5MPa.
After start, mixed material enters extruder, after reaching certain mobility, opens water and the forced air drying of cooling bath
Equipment；The strip melt of extruding dies outlet is cooled down in cooling bath, and is made by roller traction to comminutor cutting
Grain, the particle after granulation is delivered to forced air drying equipment and is dried by wind, and dried particle is sieved by vibratory sieve
After pack, prepare the bottle stage polypropylene material of the present embodiment.
The bottle stage polypropylene material that will be prepared (is with the gross weight of color masterbatch with bottle stage polypropylene material with color masterbatch
Benchmark, the content of color masterbatch is 2%) to be stirred by artificial or machine, into extrusion machine inlet, by spiral shell
After bar plasticizing, base pipe is extruded, and enter bottle blowing mould, bottle blowing mould matched moulds simultaneously blocks base pipe using cutting knife, then leads to
Cross equipment and insert pen and be blown into the compressed air of 8 ± 1bar, base pipe inflation is simultaneously close to mould, cooling and shaping, as can pack
The polypropylene containers of food, beverage.
The poly- third class material of bottle level and the unmodified melt index that the present embodiment is prepared are 0.6g/10min (230 DEG C)
Block copolymerization polypropylene material the contrast of physical index situation it is as shown in table 3.
Table 3
Embodiment 3
It is raw materials used commercially available, as the acrylic resin of matrix resin for melt index is 0.6g/10min
The block copolymerization polypropylene powder of (230 DEG C), the block copolymerization polypropylene be by content for 85% (weight) third
The polypropylene block copolymer of the formation of alkene and 15% (weight) ethene；
Polyvinyl resin is that melt index is the high density polyethylene (HDPE) particle of 0.26g/10min (190 DEG C)；
Antioxidant is selected from model 1010, the compound of 1076 antioxidant, and the wherein antioxidant content of model 1010 is
500ppm, the antioxidant of model 1076 is 1000ppm, balance of polyethylene support；
Plumper is calcium stearate.
Under 20 ± 5 DEG C of environment temperatures, weigh the block that 10 kilograms of melt index are 0.6g/10min (230 DEG C) and be total to
Poly- polypropylene powder and according to block copolymerization polypropylene：Antioxidant：The weight ratio of plumper is 100：0.05：0.1
Proportioning weigh appropriate antioxidant, plumper, make they in batch mixer be well mixed；Then mixed material is put
Enter the spout of double screw extruder, after equipment is preheated, it is 180-240 DEG C of (wherein mouth mold temperature to preset melt temperature
Spend is 215-221 DEG C), melt pressure is 5MPa.After start, mixed material enters extruder, reaches certain stream
After dynamic property, the water and forced air drying equipment of cooling bath are opened；The strip melt of extruding dies outlet is in cooling bath
Cooling, and granulation is cut by roller traction to comminutor, the particle after granulation is delivered to forced air drying equipment and is entered by wind
Row drying, dried particle is packed by after vibratory sieve screening, prepares containing antioxidant and plumper poly- third
Alkene particle.
As shown in figure 1, being with melt index with the polypropylene particles of plumper containing antioxidant by what is prepared
The high density polyethylene (HDPE) particle of 0.26g/10min (190 DEG C) is according to 100.15：20 weight ratio mixes in batch mixer
Uniformly, then mixed material is put into the spout of double screw extruder, after equipment is preheated, default melt temperature is
180-250 DEG C, melt pressure is 5MPa.After start, mixed material enters extruder, after reaching certain mobility,
Open the water and forced air drying equipment of cooling bath；The strip melt of extruding dies outlet is cooled down in cooling bath, and
Cut by roller traction to comminutor and granulated, the particle after granulation is delivered to forced air drying equipment and is dried by wind,
Dried particle is packed by after vibratory sieve screening, prepares the bottle stage polypropylene material of the present embodiment.
The bottle stage polypropylene material that will be prepared (is with the gross weight of color masterbatch with bottle stage polypropylene material with color masterbatch
Benchmark, the content of color masterbatch is 2%) to be stirred by artificial or machine, into extrusion machine inlet, by spiral shell
After bar plasticizing, base pipe is extruded, and enter bottle blowing mould, bottle blowing mould matched moulds simultaneously blocks base pipe using cutting knife, then leads to
Cross equipment and insert pen and be blown into the compressed air of 8 ± 1bar, base pipe inflation is simultaneously close to mould, cooling and shaping, as can pack
The polypropylene containers of food, beverage.
The poly- third class material of bottle level and the unmodified melt index that the present embodiment is prepared are 0.6g/10min (230 DEG C)
Block copolymerization polypropylene material the contrast of physical index situation it is as shown in table 4.
Table 4
Embodiment 4
It is raw materials used commercially available, as the acrylic resin of matrix resin for melt index is 0.6g/10min
The block copolymerization polypropylene particle (with embodiment 1) of (230 DEG C), with melt index as 0.6g/10min (230 DEG C)
Polypropylene particles：Antioxidant：The weight ratio of plumper is 100：0.18：0.9 proportioning weigh appropriate antioxidant,
Plumper, using method same as Example 3, prepares the polypropylene particles containing antioxidant Yu plumper.
Polyvinyl resin is that melt index is the high density polyethylene (HDPE) particle of 0.26g/10min (190 DEG C), is referred to melting
Number is the high density polyethylene (HDPE) particle of 0.26g/10min (190 DEG C)：Antioxidant：The weight ratio of plumper is 10：0.18：
0.9 proportioning weighs appropriate antioxidant, plumper, using method same as Example 3, prepare containing
The polyethylene particles of antioxidant and plumper.
As shown in figure 1, under 20 ± 5 DEG C of environment temperatures, weighing 10 kilograms containing antioxidant and plumper poly- third
Alkene particle, 1 kilogram of polyethylene particles containing antioxidant and plumper；Then double screw extruder is placed them into
Spout, after equipment is preheated, it is 180-240 DEG C (wherein die temperature is 212-221 DEG C) to preset melt temperature,
Melt pressure is 5MPa.After start, mixed material enters extruder, after reaching certain mobility, opens cooling
The water and forced air drying equipment of groove；The strip melt of extruding dies outlet is cooled down in cooling bath, and by roller
Traction is cut to comminutor and is granulated, and the particle after granulation is delivered to forced air drying equipment and is dried by wind, dried
Particle is packed by after vibratory sieve screening, prepares the bottle stage polypropylene material of the present embodiment.
The bottle stage polypropylene material that will be prepared (is with the gross weight of color masterbatch with bottle stage polypropylene material with color masterbatch
Benchmark, the content of color masterbatch is 2%) to be stirred by artificial or machine, into extrusion machine inlet, by spiral shell
After bar plasticizing, base pipe is extruded, and enter bottle blowing mould, bottle blowing mould matched moulds simultaneously blocks base pipe using cutting knife, then leads to
Cross equipment and insert pen and be blown into the compressed air of 8 ± 1bar, base pipe inflation is simultaneously close to mould, cooling and shaping, as can pack
The polypropylene containers of food, beverage.
The poly- third class material of bottle level and the unmodified melt index that the present embodiment is prepared are 0.6g/10min (230 DEG C)
Block copolymerization polypropylene material the contrast of physical index situation it is as shown in table 5.
Table 5
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention,
Every any simple modification, equivalent variations and modification made to above example according to technical spirit of the invention,
Still fall within the range of technical solution of the present invention.
Claims (10)
1. a kind of bottle stage polypropylene material, its raw material composition includes：
This bottle of stage polypropylene material be at least by above-mentioned raw materials by being at least blended, melting, extruding pelletization the step of and make
For what is obtained.
2. according to claim 1 bottle of stage polypropylene material, wherein, the acrylic resin refers to including melting
Number is 0.1-20g/10min, 230 DEG C one or more polypropylene；Preferably, the acrylic resin includes melting
Index is 0.1-1.0g/10min, 230 DEG C of block copolymerization polypropylene.
3. according to claim 1 bottle of stage polypropylene material, wherein, the polyvinyl resin refers to including melting
Number is 0.1-20g/10min, 190 DEG C one or more polyethylene；Preferably, the polyvinyl resin includes melting
Index is 0.1-1.0g/10min, 190 DEG C of high density polyethylene (HDPE).
4. according to claim 1 bottle of stage polypropylene material, wherein, the antioxidant include model 1010,
1076、1098、1790、1425、330、3114、168、626、618、259、245、440、DPPD、
The combination of one or more in the antioxidant of TNP, or the combination of one or more and poly- third in these antioxidant
The composition of one or more carriers in alkene, polyethylene, polystyrene.
5. according to claim 1 bottle of stage polypropylene material, wherein, the plumper includes metallic stearic
Salt and/or synthetic hydrotalcite；Preferably, the Metallic stearates include zinc stearate and/or calcium stearate.
6. the bottle stage polypropylene material according to any one of claim 1-5, wherein, acrylic resin：Poly- second
Olefine resin：Antioxidant：The weight ratio of plumper is 100:(10-30):(0.1-0.3):(0.1-0.3).
7. a kind of preparation method of the bottle stage polypropylene material described in any one of claim 1-6, the preparation method includes
Following steps：
Acrylic resin, polyvinyl resin, antioxidant, plumper are mixed in proportion, a mixed material is obtained；
The mixed material is melted under conditions of 110-260 DEG C, 3-15MPa, then by twin-screw or single spiral shell
After bar extruder extrusion, cooling granulation is carried out, obtain described bottle stage polypropylene material.
8. preparation method according to claim 7, wherein, the temperature of melting is 180-240 DEG C.
9. the application aborning in empty product of the bottle stage polypropylene material described in any one of claim 1-6.
10. in application according to claim 9, wherein, the bottle stage polypropylene material is independent or and color masterbatch
It is used to produce the hollow product after mixing.
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| CN201511028032.3A CN106928625A (en) | 2015-12-31 | 2015-12-31 | A kind of bottle stage polypropylene material and preparation method and application |
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| CN113831635A (en) * | 2020-06-24 | 2021-12-24 | 合肥杰事杰新材料股份有限公司 | Weather-resistant glass fiber reinforced polypropylene composition and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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