CN106366452A - Preparation method of PP/PET microfiber reinforced blend - Google Patents
Preparation method of PP/PET microfiber reinforced blend Download PDFInfo
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- CN106366452A CN106366452A CN201610963321.0A CN201610963321A CN106366452A CN 106366452 A CN106366452 A CN 106366452A CN 201610963321 A CN201610963321 A CN 201610963321A CN 106366452 A CN106366452 A CN 106366452A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
Abstract
The invention provides a preparation method of a PP/PET microfiber reinforced blend. The PP/PET capacity-increase blend is preapred with PP as the continuous phase, PET as the dispersing phase and diallyl phthalate and glycidyl methacrylate cograft PP graft PP-g-(DAP-co-GMA) as the novel compatibilizer; the dispersing, orienting and fiber forming of PET in the blend are achieved through a proper processing method, the structure is much stored in subsequent products, and therefore the aim of reinforcing PP through PET microfiber in situ is achieved. By means of the method, the mechanical performance of PP can be remarkably improved, and the method has great important significance in expanding the application field of PP.
Description
Technical field
The invention belongs to Reactive polymer processing field, it is related to a kind of high-performance polypropylene (pp)/poly- terephthaldehyde
Sour glycol ester (pet) fento strengthens the novel preparation method of blend.
Background technology
The blending and modifying of pp and pet is all the emphasis of people's research all the time, adds pet to be expected to improve the resistance to of pp in pp
Hot, case hardness, dyeability and mechanical strength, the particularly raising of pp mechanical strength, are expected to realize the high performance of pp
With engineering plastics.But research all the time finds that the blending of pp and pet can not highly desirable improve the power of pp
Learn intensity, on the one hand this be because that pp and pet is incompatible polymer, and the poor compatibility of co-mixing system directly results in blending
Thing poor mechanical property；On the other hand be because most pp and pet at present blend be with pp as matrix phase, pet is as grain
Sub- dispersion phase is constituted, and when pp/pet co-mixing system is stressed effect, undertakes the main of stress or pp, therefore pp/pet
The mechanical strength of blend still close to the mechanical strength of pp so that the potentiation of pet can not embody completely, and then
Pp mechanical strength improves inconspicuous.
In recent years, people's research finds to carry out processing by suitable processing method by pet to make it deposit in the form of fento
It is in pp matrix, to effectively improve the mechanical strength of pp.Shen Jingwei et al. (increasing of pp/pet In-situ Composite
Potent should, composite journal, 2004,21 (4): 33 39.) with pp as matrix phase, it is micro- that pet is prepared for pp/pet for dispersion phase
Fiber reinforced materials, research finds that when the mass percent of pet be 15%, and the fento reinforcing material mechanical property being obtained is best,
Tensile strength improves 20% than pure pp；Karingamannajayanarayanan et al. (effect of draw ratio
on the microstructure,thermal,tensile and dynamic rheological properties of
Insitumicrofibrillar composites, european polymer journal, 2009,45:1738 1747.)
The pp/pet fento that proportioning according to pp/pet (85/15, wt%) is prepared for different stretch ratio strengthens blend, and result shows to work as
When draw ratio is 5, the mechanical property of intermingling material is best.(compatibilization becomes fine to pet in pp situ and increases Hou Jingqiang et al.
The impact of potent fruit, plastics science and technology, 2006,34 (3): 24 27.) it is prepared for according to the proportioning of pp/pet (80/20, wt%)
Pp/pet fento strengthens blend, and result shows that the tensile strength of pp is also significantly improved.Above research all shows
In pp/pet blend, pet is carried out in-situ micro-fibrilization and can effectively play potentiation in pp matrix for the pet, improve pp's
Mechanical strength.
But because pp and pet is incompatible blend, the quality of Miscibility directly determines physical property is finally blended
The quality of energy, therefore must add compatilizer to improve the compatibility between pp and pet during pp/pet blending.Tradition
The compatilizer of pp/pet system be the poles such as maleic anhydride (mah), glycidyl methacrylate (gma), acrylic acid (aa)
The Graft Polypropylene of property monomer or above-mentioned polar monomer are with styrene (st), trimethylolpropane acrylates
(tris), divinylbenzene (dvb) is the Graft Polypropylene being obtained under conditions of co-monomer, but above-mentioned polar monomer or common
Monomer has that volatile, toxicity is big, a series of shortcomings such as expensive.
So developing a kind of compatilizer being applied to pp/pet system to be used for preparing high-performance polypropylene (pp)/poly- to benzene two
Formic acid glycol ester (pet) fento strengthens blend, and the range increasing pp has great importance.
Content of the invention
It is an object of the invention to provide a kind of high-performance pp/pet fento strengthens the preparation method of blend, overcome existing skill
The polypropylene material tensile strength prepared in art is low, the shortcoming of range of application.This method is volatilized using hardly possible, toxicity is low, reaction
The high diallyl phthalate (dap) of activity is co-monomer, and gma is grafted monomers, and preparation pp-g- (dap-co-gma) connects
Branch thing is as the bulking agent of pp/pet system.Dap not only overcomes the shortcoming existing for the co-monomers such as st, dvb as co-monomer,
And on pp strand during melt blending can be by there is ester exchange reaction to pp/pet with pet in the dap of grafting
System also functions to compatibilization, and the co-monomer such as st, dvb does not have such effect, substantially increases the increase-volume of co-monomer
Synergism.
According to an aspect of the present invention, the invention provides a kind of high-performance pp/pet fento strengthens the preparation of blend
Method, comprises the following steps:
1) preparation of pp-g- (dap-co-gma) graft
Extruder utilize dosing pump inject glycidyl methacrylate, diallyl phthalate third in melt zone
Ester, initiator, control mixed material to add speed, prepare pp-g- (dap-co-gma) graft；Extruder is by hopper to mouth
Mould temperature is: the first temperature section is 160～165 DEG C, second temperature section is 165～170 DEG C, the 3rd temperature section is 170～180
DEG C, the 4th temperature section be 180～185 DEG C, the 5th temperature section be 185～190 DEG C, die temperature be 180～185 DEG C, described squeeze
The screw speed going out machine is 60～100 revs/min；
2) preparation of increase-volume PP Pipe Compound
Pp, pp-g- (dap-co-gma) graft, pet are carried out drying and processing；Mixed with antioxidant 1010 after drying
Close, finally carry out extruding pelletization in an extruder and obtain increase-volume PP Pipe Compound；Extruder by hopper to die temperature is: the first temperature section
For 150～160 DEG C, second temperature section be 240～250 DEG C, the 3rd temperature section be 260～280 DEG C, the 4th temperature section be 270～
280 DEG C, the 5th temperature section be 270～280 DEG C, die temperature be 260～270 DEG C；
Wherein pp, pp-g- (dap-co-gma) graft, pet, antioxidant 1010 parts by weight proportioning are:
Pp is 55～85 parts；Pet is 10～30 parts；Pp-g- (dap-co-gma) is 4.7～14.5 parts；Antioxidant 1010
For 0.3～0.5 part；
3) fento strengthens the preparation of blend
Above-mentioned increase-volume PP Pipe Compound is dried, then carries out stretching and drawing using wire drawing traction apparatuss, by traction apparatuss
Rotating speed restrained stretching ratio；Material after stretching cooling and shaping in 15～25 DEG C of tank；
4) pelletizing
After the material boundling of cooling and shaping, it is cut into the granule of certain draw ratio；
5) injection mo(u)lding
The above-mentioned granule with certain draw ratio is molded into test bars after the drying, and batten is located at 100 DEG C
Carry out Mechanics Performance Testing after reason 12h；Injection machine is 160～170 by each section of temperature of hopper to mouth mould for the first temperature section
DEG C, the first temperature section be 170～180 DEG C, the first temperature section be 180～190 DEG C, mouthful moulds at temperature be 190～200 DEG C；
Described pp refers to polypropylene；Pet refers to polyethylene terephthalate.
Described pp refers to polypropylene；Pet refers to polyethylene terephthalate.
Preferably, in 230 DEG C of temperature, the melt flow rate (MFR) recording under load 2.16kg is 2～8g/10min to described pp；
The number-average molecular weight of pet is 20,000～80,000.
Preferably, step 1) pp-g- (dap-co-gma) graft preparation in glycidyl methacrylate and neighbour
Both dially phthalates form mix monomer, and mix monomer and pp mass ratio are 0.05～0.15, phthalic acid two
Allyl ester dap is 0.2～0.8 with the monomer mole ratio of glycidyl methacrylate gma, and initiator quality is mix monomer
The 0.5～0.8% of quality.Its mix monomer percent grafting is that 0.5～5%, gma grafting efficiency is more than 60%.
Preferably, step 1) described initiator be dibenzoyl peroxide, cumyl peroxide, 2,5- dimethyl -2,
5- bis(t-butylperoxy) hexane, one or more of di-t-butyl peroxide.
Preferably, step 3) in controlled 4～16 by the rotating speed restrained stretching ratio of traction apparatuss, draw ratio.
Preferably, step 4) in particle aspect ratio 10～45.
The diallyl phthalate (dap) that this method is volatilized using hardly possible, toxicity is low, reactivity is high is co-monomer,
Gma is grafted monomers, prepares pp-g- (dap-co-gma) graft as the bulking agent of pp/pet system.Dap is as co-monomer
Not only overcome the shortcoming existing for the co-monomers such as st, dvb, and grafting on pp strand during melt blending
Dap can be by occurring ester exchange reaction to also function to compatibilization to pp/pet system with pet, and the co-monomer such as st, dvb is not
There is such effect, substantially increase the increase-volume synergism of co-monomer.
The present invention preparation fento strengthen granule it is desirable to its draw ratio be 10～25, and do not affect follow-up equipment process into
Material, so that fento feature that is intact and possessing long fiber reinforcement during following process.The principle of the present invention is:
With pp as continuous phase, in the co-mixing system course of processing as dispersion phase for the pet, pet forms fento under shearing and stretching action, leads to
Cross the draw ratio of granule when controlling suitable processing conditionss and final pelletize, so that fento is preserved simultaneously during following process
Matrix is produced with the effect of long fiber reinforcement；Again through the heat treatment of uniform temperature, certain time, improve the degree of crystallinity of fento,
Eliminating internal stress, thus strengthening fento In-sltu reinforcement effect, and then reaching the purpose significantly improving matrix material performance.
In the present invention, pp refers to polypropylene；Pet refers to polyethylene terephthalate；Dap refers to phthalic acid two
Allyl ester；Gma refers to glycidyl methacrylate.
Specific embodiment
For making the object, technical solutions and advantages of the present invention of greater clarity, with reference to specific embodiment, to this
Invention further describes.It should be understood that these descriptions are simply exemplary, and it is not intended to limit the scope of the present invention.
The pp being previously mentioned in following instance: trade mark f401, Yangtze petrochemical iy produced, mfr=2.0g/10min (230 DEG C,
2.16kg)；Diallyl phthalate (dap) produces for Shouguang Nuomeng Chemical Co., Ltd., purity more than 95%；Methyl-prop
Olefin(e) acid ethylene oxidic ester (gma) is that Jiangxi Rui Xiang Chemical Co., Ltd. produces, purity more than 99%；Cumyl peroxide
(dcp) produce for Tian Lian Fine Chemical Co., Ltd, purity more than 99%；Pet: Yizheng petrochemical industry company limited,
Bg802, intrinsic viscosity is 0.83 ± 0.02；Antioxidant 1010 is Shanghai vapour Bagao bridge Chemical Co., Ltd. product.
Embodiment one
(1) preparation of pp-g- (dap-co-gma) graft
In rotating speed for, on the extruder of 120rpm, using dosing pump, in melt zone injection mixed material, (gma and dap's is total
Quality is the monomer mole ratio of 10%, the dap and gma of pp mass is 0.4, and initiator dcp consumption is gma and dap gross mass
0.5%, free radical scavenger antioxidant 1010 consumption is the 0.1% of pp mass), control mixed material to add speed, prepare
The high percent grafting graft of pp-g- (dap-co-gma).Extruder by hopper to die temperature is: the first temperature section is 165 DEG C, the
Two temperature sections are 170 DEG C, the 3rd temperature section is 180 DEG C, the 4th temperature section is 185 DEG C, the 5th temperature section is 190 DEG C, mouthful mould temperature
Spend for 185 DEG C；Screw speed is 60～100 revs/min；
(2) preparation of increase-volume PP Pipe Compound
By pp, pp-g- (dap-co-gma) graft, pet carry out drying and processing.Dried material is pressed following matter
Amount percentage ratio is mixed, and finally carries out extruding pelletization in an extruder.Extruder by hopper to die temperature is: the first temperature
Section is 170 DEG C, second temperature section is 250 DEG C, the 3rd temperature section is 270 DEG C, the 4th temperature section is 280 DEG C, the 5th temperature section is
270 DEG C, die temperature be 270 DEG C.
Wherein pp, pp-g- (dap-co-gma) graft, pet, antioxidant 1010 parts by weight proportioning are:
Pp is 55～85 parts；Pet is 10～30 parts；Pp-g- (dap-co-gma) is 4.7～14.5 parts；Antioxidant 1010
For 0.3～0.5 part；
(3) fento strengthens the preparation of blend
After above-mentioned increase-volume PP Pipe Compound is dried, carry out stretching and drawing using special wire drawing traction apparatuss, filled by traction
The rotating speed restrained stretching ratio put, the cooling and shaping in 15～25 DEG C of tank of the material after stretching, obtain the thing that draw ratio is 4
Material.
(4) pelletizing
After the material boundling of cooling and shaping, it is cut into the particulate material that draw ratio is 10.
(5) injection mo(u)lding
The particulate material that above-mentioned draw ratio is 10 is molded into test bars after drying, and batten is processed at 100 DEG C 12h
After carry out Mechanics Performance Testing.Injection machine is 170 DEG C, second temperature by each section of temperature of hopper to mouth mould for the first temperature section
Section is 180 DEG C, the 3rd temperature section is that at 190 DEG C, mouthful moulds, temperature is 200 DEG C.
Example two
The monomer mole ratio of dap in example one step (1) and gma is changed into 0.2, other is with example one.
Example three
The monomer mole ratio of dap in example one step (1) and gma is changed into 0.8, other is with example one.
Example four
Gma in example one step (1) is changed into the 5% of pp gross mass with dap monomer gross mass, other is with example one.
Example five
Gma in example one step (1) is changed into the 15% of pp gross mass with dap monomer gross mass, other is with example one.
Example six
Change stretching and drawing speed in example one step (3), obtain the material that draw ratio is 6, other is with example one.
Example seven
Change stretching and drawing speed in example one step (3), obtain the material that draw ratio is 9, other is with example one.
Example eight
Change stretching and drawing speed in example one step (3), obtain the material that draw ratio is 16, other is with example one.
Example nine
Change pelletizing draw ratio in example one step (4), obtain the material that draw ratio is 15, other is with example one.
Example ten
Change pelletizing draw ratio in example one step (4), obtain the material that draw ratio is 20, other is with example one.
Example 11
Change pelletizing draw ratio in example one step (4), obtain the material that draw ratio is 45, other is with example one.
Example 12
Initiator in example one step (1) is dcp and dtbh, respectively accounts for the 50% of weight, other is with example three.
Example 13
Pure ppf401 without any modification.
Example 14
Dap in example one step (1) and gma mix monomer are changed to the maleic anhydride (mah) of equal in quality, other same real
Example six.
Performance detection: with reference to the power to each fiber reinforced blends of embodiment for the method for testing in gb/t1040-1992
Learn performance test, data is listed in table 1
Table 1 embodiment performance test
From data above, the present invention adopts New Compatilizer pp-g- (dap-co-gma) graft, is prepared for height
The pp/pet fento of performance strengthens blend so that the tensile strength of pp significantly improves, and this is for the application tool of extension pp
There is extremely important meaning.
Although embodiments of the present invention are described in detail it should be understood that, without departing from the present invention's
In the case of spirit and scope, embodiments of the present invention can be made with various changes, replacement and change.
Claims (6)
1. a kind of pp/pet fento strengthens the preparation method of blend, comprises the following steps:
1) preparation of pp-g- (dap-co-gma) graft
On extruder utilize dosing pump melt zone inject glycidyl methacrylate, diallyl phthalate,
Initiator, controls mixed material to add speed, prepares pp-g- (dap-co-gma) graft；Extruder is by hopper to mouth mould
Temperature is: the first temperature section is 160～165 DEG C, second temperature section is 165～170 DEG C, the 3rd temperature section is 170～180 DEG C,
4th temperature section is 180～185 DEG C, the 5th temperature section is 185～190 DEG C, die temperature is 180～185 DEG C, described extruder
Screw speed be 60～100 revs/min；
2) preparation of increase-volume PP Pipe Compound
Pp, pp-g- (dap-co-gma) graft, pet are carried out drying and processing；Mixed with antioxidant 1010 after drying,
Finally carrying out extruding pelletization in an extruder obtains increase-volume PP Pipe Compound；Extruder by hopper to die temperature is: the first temperature section is
150～160 DEG C, second temperature section be 240～250 DEG C, the 3rd temperature section be 260～280 DEG C, the 4th temperature section be 270～280
DEG C, the 5th temperature section be 270～280 DEG C, die temperature be 260～270 DEG C；
Wherein pp, pp-g- (dap-co-gma) graft, pet, antioxidant 1010 parts by weight proportioning are:
Pp is 55～85 parts；Pet is 10～30 parts；Pp-g- (dap-co-gma) is 4.7～14.5 parts；Antioxidant 1010 is 0.3
～0.5 part；
3) fento strengthens the preparation of blend
Above-mentioned increase-volume PP Pipe Compound is dried, then carries out stretching and drawing using wire drawing traction apparatuss, by the rotating speed of traction apparatuss
Restrained stretching ratio；Material after stretching cooling and shaping in 15～25 DEG C of tank；
4) pelletizing
After the material boundling of cooling and shaping, it is cut into the granule of certain draw ratio；
5) injection mo(u)lding
By above-mentioned steps 4) in the granule of certain draw ratio be molded into test bars after the drying, and batten is located at 100 DEG C
Carry out Mechanics Performance Testing after reason 12h；Injection machine is 160～170 by each section of temperature of hopper to mouth mould for the first temperature section
DEG C, the first temperature section be 170～180 DEG C, the first temperature section be 180～190 DEG C, mouthful moulds at temperature be 190～200 DEG C；
Described pp refers to polypropylene；Pet refers to polyethylene terephthalate.
2. a kind of pp/pet fento according to claim 1 strengthen blend preparation method it is characterised in that: described pp
In 230 DEG C of temperature, the melt flow rate (MFR) recording under load 2.16kg is 2～8g/10min；The number-average molecular weight of pet is 20,000
～8 ten thousand.
3. a kind of pp/pet fento according to claim 1 strengthen blend preparation method it is characterised in that: step 1)
Glycidyl methacrylate and group both diallyl phthalate in the preparation of pp-g- (dap-co-gma) graft
Become mix monomer, described mix monomer and pp mass ratio are 0.05～0.15, diallyl phthalate and methacrylic acid
The monomer mole ratio of ethylene oxidic ester is 0.2～0.8, and initiator quality is the 0.5～0.8% of mix monomer quality.
4. a kind of pp/pet fento according to claim 1 strengthen blend preparation method it is characterised in that: step 1)
Described initiator is dibenzoyl peroxide, cumyl peroxide, 2,5- dimethyl -2,5- bis(t-butylperoxy) are own
Alkane, one or more of di-t-butyl peroxide.
5. a kind of pp/pet fento according to claim 1 strengthen blend preparation method it is characterised in that: step 3)
In controlled 4～16 by the rotating speed restrained stretching ratio of traction apparatuss, draw ratio.
6. a kind of pp/pet fento according to claim 1 strengthen blend preparation method it is characterised in that: step 4)
Middle particle aspect ratio 10～45.
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| CN107019324A (en) * | 2017-05-16 | 2017-08-08 | 泉州迈特富纺织科技有限公司 | The manufacture craft for bearing equipment and its backpack support with high intensity backpack support |
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| CN1346845A (en) * | 2001-09-25 | 2002-05-01 | 四川大学 | Process and apparatus for preparing polyolefin/polyglycol terephthalate in-situ micro-fibril reinforced composite material |
| CN101580612A (en) * | 2009-05-21 | 2009-11-18 | 东莞普能塑料科技实业有限公司 | PP/PET alloy material and preparation process thereof |
| CN105733098A (en) * | 2016-02-23 | 2016-07-06 | 常州大学 | Method for preparing high-performance PP/PET blend |
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| CN107019324A (en) * | 2017-05-16 | 2017-08-08 | 泉州迈特富纺织科技有限公司 | The manufacture craft for bearing equipment and its backpack support with high intensity backpack support |
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