CN108794855A - A kind of PE/PET composite material and preparation methods - Google Patents
A kind of PE/PET composite material and preparation methods Download PDFInfo
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- CN108794855A CN108794855A CN201810546829.XA CN201810546829A CN108794855A CN 108794855 A CN108794855 A CN 108794855A CN 201810546829 A CN201810546829 A CN 201810546829A CN 108794855 A CN108794855 A CN 108794855A
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- 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
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Abstract
The invention belongs to the preparing technical fields of high molecular material, and in particular to a kind of PE/PET composite material and preparation methods.This method is processed PE/PET composite materials using the high polymer material plasticizing conveying equipment based on draft flowing deformation, material is set to carry out melting mixing in elongation flow field, the velocity gradient of material solution is consistent with flow direction, dispersed phase particles group by bigger external force role of tear, and do not generate rotation, so dispersion can be more effectively crushed, to obtain grain size smaller, the co-mixing system of particle distribution evenly.This method does not have to addition compatilizer, can reduce cost.Its materials compatibility is good, and the tensile strength and impact strength of composite material are high, and ductility is good, the advantages of having both PE and PET material, in having a extensive future for the fields such as automobile, electronic apparatus, machinery instrument and film article.
Description
Technical field
The invention belongs to the preparing technical fields of high molecular material, and in particular to a kind of PE/PET composite materials and its preparation
Method.
Background technology
Polyethylene (PE) yield occupies first of five big general-purpose plastics, including high density polyethylene (HDPE) (HDPE), low density polyethylene (LDPE)
(LDPE), linear low density polyethylene (LLDPE) and metallocene PE (mPE).Polyethylene can with blowing, squeeze out and be injected into
The methods of type is processed.Because it is with good toughness, transparency and processing performance, it is therefore widely used in film, hollow system
The fields such as product, fiber and daily use Sundry goods.However, polyethylene has the shortcomings that intensity is low and poor heat resistance, limit it into one
Step application.
In contrast, polyethylene terephthalate (PET) is used as engineering plastics, has intensity height, heat resistance high, resistance to
Chemicals height, lower-price characteristic have been widely used in the row such as automobile, motor, electronics, household electrical appliance and machinery
Industry.However, polyethylene terephthalate has the shortcomings that impact property is poor, processing and forming is difficult, application is also limited
System.Therefore, existing research the shortcomings that combining PE with PET, enabling two kinds of materials, makes up mutually, obtain having both PE with
The PE/PET composite materials of PET advantages,
Traditional PE/PET composite material machining machines are mainly extrusion molding.Process of the material in screw extruder
In mainly acted on by Shearing Flow.In Shearing Flow, material is formed by velocity gradient perpendicular to melt flows direction, this
The kind type of flow is unfavorable for the phase counterdiffusion and infiltration of polymer molecule between velocity gradient, and material tends in Shearing Flow
It is transported in rotation, reduces broken dispersion effect of the external force to dispersed phase particles, therefore the plasticizing of blend and mixed effect are not
It is good.So not only needing additionally to add compatilizer in extrusion molding to improve blending effect, and the power of gained composite material
Desirable cannot still be reached by learning performance.
Invention content
The shortcomings that overcome the prior art and deficiency, the primary purpose of the present invention is that providing a kind of PE/PET composite materials
Preparation method.
Another object of the present invention is to provide the PE/PET composite materials that above-mentioned preparation method obtains.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of preparation method of PE/PET composite materials, includes the following steps：It is mixed in high speed by PE and PET mixed ingredients
It is mixed in conjunction machine, then high polymer material plasticizing conveying equipment progress melt blending of the use based on draft flowing deformation, extrusion molding,
It is cooling, it air-dries, pelletizing, it is dry to get to the PE/PET composite materials.
Wherein, the high polymer material plasticizing conveying equipment based on draft flowing deformation is invented by the flat academicians of South China Science & Engineering University Qu Jin
(Chinese patent CN101219565A)
Preferably, the PE is that high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene or metallocene are poly-
Ethylene.
Preferably, the inherent viscosity of the PET is 0.83~1.40dl/g.
Preferably, the proportioning of the PE and PET mixed ingredients is by mass percentage：PE 70%~90% and PET
10%~30%.
Preferably, the when a length of 10~30min mixed in high-speed mixer.
When preferably, high polymer material plasticizing conveying equipment of the use based on draft flowing deformation carries out melt blending
Temperature is 230~270 DEG C.
When preferably, high polymer material plasticizing conveying equipment of the use based on draft flowing deformation carries out melt blending
Rotor speed is 30~120 revs/min.
The present invention further provides the PE/PET composite materials obtained by above-mentioned preparation method.
Compared with prior art, the present invention having the following advantages and advantages：
(1) present invention carries out PE/PET composite materials using the high polymer material plasticizing conveying equipment based on draft flowing deformation
Processing, what material was subject in process is acting on for elongation flow field.In elongation flow field, the velocity gradient and stream of material melt
Dynamic direction is consistent, and under identical rate of deformation, dispersed phase particles roll into a ball the external force role of tear by bigger, and particle cluster is defeated
Rotation is not generated during fortune, so dispersion more effectively can be further crushed, to obtain grain size smaller, particle distribution
Co-mixing system evenly, therefore obtain better mixed effect and dispersion efficiency than Shearing Flow.
(2) PE/PET composite materials prepared by the present invention do not have to addition compatilizer, can reduce cost.Its materials compatibility
Good, the tensile strength and impact strength of composite material are high, and ductility is good, the advantages of having both PE and PET material, in automobile, electronics
The fields such as electric appliance, machinery instrument and film article have a extensive future.
Description of the drawings
Fig. 1 is the scanning electron microscope (SEM) photograph of the PE/PET composite materials prepared in embodiment 1.
Fig. 2 is the scanning electron microscope (SEM) photograph of the reference examples PE/PET composite materials prepared in embodiment 1.
Fig. 3 is the scanning electron microscope (SEM) photograph of the PE/PET composite materials prepared in embodiment 2.
Fig. 4 is the scanning electron microscope (SEM) photograph of the reference examples PE/PET composite materials prepared in embodiment 2.
Specific implementation mode
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.For not specifically specified technological parameter, routine techniques progress can refer to.
The PE used in the following example is purchased from Exxon Mobil, model 1018HA.
PET is purchased from Guangzhou Pan Asia polyester Co., Ltd, model FY1002, and inherent viscosity is 0.83~1.40dl/g.
Embodiment 1
The present embodiment provides a kind of PE/PET composite material and preparation methods, and provide corresponding reference examples.
A kind of PE/PET composite materials, component matches by weight percent is：PE 70%, PET 30%.
Preparation method：PE and PET is pressed into above-mentioned mass percent proportion ingredient, 30 points are then mixed in high-speed mixer
Clock, then melt blending is carried out using the high polymer material plasticizing conveying equipment based on draft flowing deformation, each section of melting temperature is 230-
250-260-270-270 DEG C, screw speed is 30 revs/min, and extrusion molding is cooling, air-dries, pelletizing, to obtain the final product above-mentioned after dry
PE/PET composite materials.
Reference examples：PE and PET is pressed into above-mentioned mass percent proportion ingredient, 30 points are then mixed in high-speed mixer
Clock, then melt blending is carried out using conventional twin screw extruder, each section of melting temperature is 230-250-260-270-270 DEG C, spiral shell
Bar rotating speed is 30 revs/min, and extrusion molding is cooling, air-dries, pelletizing, up to reference examples PE/PET composite materials after drying.
Embodiment 2
The present embodiment provides a kind of PE/PET composite material and preparation methods, and provide corresponding reference examples.
A kind of PE/PET composite materials, component matches by weight percent is：PE 80%, PET 20%.
Preparation method：PE and PET is pressed into above-mentioned mass percent proportion ingredient, 30 points are then mixed in high-speed mixer
Clock, then melt blending is carried out using the high polymer material plasticizing conveying equipment based on draft flowing deformation, each section of melting temperature is 230-
250-260-270-270 DEG C, screw speed is 30 revs/min, and extrusion molding is cooling, air-dries, pelletizing, to obtain the final product above-mentioned after dry
PE/PET composite materials.
Reference examples：PE and PET is pressed into above-mentioned mass percent proportion ingredient, 30 points are then mixed in high-speed mixer
Clock, then melt blending is carried out using conventional twin screw extruder, each section of melting temperature is 230-250-260-270-270 DEG C, spiral shell
Bar rotating speed is 30 revs/min, and extrusion molding is cooling, air-dries, pelletizing, up to reference examples PE/PET composite materials after drying.
With reference to GB/T 1040-2006 to the PE/PET composite materials and reference examples PE/PET in embodiment 1 and embodiment 2
Composite material carries out tensile strength and elongation at break detection, and acquired results are shown in Table 1.As can be seen that with traditional Shearing Flow system
Standby PE/PET composite materials are compared, and have higher tensile strength based on PE/PET composite materials prepared by elongation flow field, more
Excellent elongation at break, i.e., excellent ductility.The PE/PET composite materials prepared based on elongation flow field occur failing to draw
Disconnected situation.
The PE/PET composite materials property tables of 1 embodiment 1 of table and embodiment 2 and its reference examples
Using scanning electron microscope to the PE/PET composite materials and reference examples PE/PET in embodiment 1 and embodiment 2
The microscopic appearance of composite material is observed, as a result as shown in figures 1-4, it is seen that the PE/PET prepared with traditional Shearing Flow is multiple
Condensation material is compared, based on elongation flow field prepare PE/PET composite materials have better interface, grain size smaller and distribution it is more equal
Even, two-phase good can mix without using compatilizer.
Embodiment 3
The present embodiment provides a kind of PE/PET composite material and preparation methods.
A kind of PE/PET composite materials, component matches by weight percent is：PE 90%, PET 10%.
Preparation method：PE and PET is pressed into above-mentioned mass percent proportion ingredient, 10 points are then mixed in high-speed mixer
Clock, then melt blending is carried out using the high polymer material plasticizing conveying equipment based on draft flowing deformation, each section of melting temperature is 230-
250-260-270-270 DEG C, screw speed is 30 revs/min, and extrusion molding is cooling, air-dries, pelletizing, to obtain the final product above-mentioned after dry
PE/PET composite materials.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (8)
1. a kind of preparation method of PE/PET composite materials, which is characterized in that include the following steps：By PE and PET mixed ingredients,
It is mixed in high-speed mixer, melt blending is then carried out using the high polymer material plasticizing conveying equipment based on draft flowing deformation,
Extrusion molding, it is cooling, it air-dries, pelletizing, it is dry to get to the PE/PET composite materials.
2. the preparation method of PE/PET composite materials according to claim 1, it is characterised in that：The PE and PET is mixed
Close dispensing proportioning be by mass percentage：PE 70%~90% and PET 10%~30%.
3. the preparation method of PE/PET composite materials according to claim 1, it is characterised in that：The PE is high density
Polyethylene, low density polyethylene (LDPE), linear low density polyethylene or metallocene PE.
4. the preparation method of PE/PET composite materials according to claim 1, it is characterised in that：The characteristic of the PET
Viscosity is 0.83dl/g.
5. the preparation method of PE/PET composite materials according to claim 1, it is characterised in that：It is described in mixed at high speed
The when a length of 10~30min mixed in machine.
6. the preparation method of PE/PET composite materials according to claim 1, it is characterised in that：The use is based on drawing
Temperature when stretching the high polymer material plasticizing conveying equipment progress melt blending of rheology is 230~270 DEG C.
7. the preparation method of PE/PET composite materials according to claim 1, it is characterised in that：The use is based on drawing
Rotor speed when stretching the high polymer material plasticizing conveying equipment progress melt blending of rheology is 30~120 revs/min.
8. a kind of PE/PET composite materials, it is characterised in that：It is obtained by any one of claim 1~7 preparation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810546829.XA CN108794855B (en) | 2018-05-31 | 2018-05-31 | PE/PET composite material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810546829.XA CN108794855B (en) | 2018-05-31 | 2018-05-31 | PE/PET composite material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN108794855A true CN108794855A (en) | 2018-11-13 |
| CN108794855B CN108794855B (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810546829.XA Active CN108794855B (en) | 2018-05-31 | 2018-05-31 | PE/PET composite material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110194862A (en) * | 2019-05-28 | 2019-09-03 | 佛山精展科技有限公司 | One kind being based on the fire-retardant PE CABLE MATERIALS of draft flowing deformation technology and its continuous preparation method |
| CN112778727A (en) * | 2021-01-29 | 2021-05-11 | 华南理工大学 | PLA/PCL conductive composite material and preparation method and application thereof |
| CN113416357A (en) * | 2021-06-28 | 2021-09-21 | 华南理工大学 | rPE/UHMWPEF composite material and preparation method and application thereof |
| CN115257113A (en) * | 2022-06-24 | 2022-11-01 | 江苏祺胜现代新材料有限公司 | PET composite material for automobile sound insulation pad and manufacturing method thereof |
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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 |
| CN101219565A (en) * | 2008-01-25 | 2008-07-16 | 华南理工大学 | Polymer material plasticizing and transporting method and apparatus based on draft flowing deformation |
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2018
- 2018-05-31 CN CN201810546829.XA patent/CN108794855B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101219565A (en) * | 2008-01-25 | 2008-07-16 | 华南理工大学 | Polymer material plasticizing and transporting method and apparatus based on draft flowing deformation |
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| JIN-PING QU等: ""Morphology Study of Immiscible Polymer Blends in a Vane Extruder"", 《J. APPL. POLYM. SCI》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110194862A (en) * | 2019-05-28 | 2019-09-03 | 佛山精展科技有限公司 | One kind being based on the fire-retardant PE CABLE MATERIALS of draft flowing deformation technology and its continuous preparation method |
| CN112778727A (en) * | 2021-01-29 | 2021-05-11 | 华南理工大学 | PLA/PCL conductive composite material and preparation method and application thereof |
| CN113416357A (en) * | 2021-06-28 | 2021-09-21 | 华南理工大学 | rPE/UHMWPEF composite material and preparation method and application thereof |
| CN115257113A (en) * | 2022-06-24 | 2022-11-01 | 江苏祺胜现代新材料有限公司 | PET composite material for automobile sound insulation pad and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN108794855B (en) | 2021-03-30 |
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Effective date of registration: 20230419 Address after: 510000 Room 101, building 4, No. 23, YUNPU 1st Road, Huangpu District, Guangzhou, Guangdong Patentee after: GUANGZHOU JEEPINE INTELLIGENT COMPRESSION MOLDING MACHINE Co.,Ltd. Address before: 510640 No. five, 381 mountain road, Guangzhou, Guangdong, Tianhe District Patentee before: SOUTH CHINA University OF TECHNOLOGY |