CN109732867A - A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out - Google Patents
A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out Download PDFInfo
- Publication number
- CN109732867A CN109732867A CN201910098198.4A CN201910098198A CN109732867A CN 109732867 A CN109732867 A CN 109732867A CN 201910098198 A CN201910098198 A CN 201910098198A CN 109732867 A CN109732867 A CN 109732867A
- Authority
- CN
- China
- Prior art keywords
- polypropylene
- melt
- combined material
- temperature
- homojunction combined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention is to be related to a kind of method for continuously preparing the homojunction combined material of polypropylene by extrusion.The melt polypropylene that Minitype twin-screw extrusion machine squeezes out mainly is passed through head extrusion by this method, polypropylene fibre is introduced in the small polyfluortetraethylene pipe of head simultaneously, squeeze out it together with melt polypropylene, it is finally formed by wire drawing machine roll stretching, so that the homojunction combined material of fibre-reinforced polypropylene be made.The homojunction combined material of polypropylene prepared by the present invention, matrix and reinforcement interface cohesion are excellent, do not need addition interface adhesive；It is easy to meet by melt-processed recycling and reusing the ecological requirements of sustainable development；The process flow is simple, easy to operate, low in cost, and can the continuous homojunction combined material of large scale preparation thermal plastic high polymer base, widen the processing and use scope of high molecular material, there is certain universality, be applicable to other thermoplastic macromolecule materials.
Description
Technical field
The present invention relates to plastic extrusion products processing technique fields, in particular to a kind of continuously to prepare polypropylene by squeezing out
The method of homojunction combined material.
Background technique
In recent years, with the increasingly raising of people's levels of substance, for the functionalization of high molecular material, diversification and
It is Ke Xunhuanliyong etc. to have new requirement.Therefore, processing of high molecular material technology also be continuously updated it is perfect.Traditional
Polymer-based composite is usually to be combined by resin base and dissimilar material reinforced phase.This just brings very to recycling
Big difficulty is unfavorable for the development of friendly environment society.Nowadays, the proposition of homojunction combined material follows again to the recycling of material
Ring only needs heating melting that can become production raw material, has good economic benefit using bringing great convenience.
Currently, being to prepare the homojunction combined material of thermal plastic high polymer by the method for hot pressing and injection molding mostly.Zhang Liying
1 or 2 isotactic polypropylene (iPP) fibers are placed on iPP matrix Deng at 160 DEG C, iPP fibre is obtained by hot pressing
The homojunction combined material of dimension/matrix be (the homojunction combined material of Zhang Liying, Xu Yahu, Qin Yijing, etal. polypropylene fibre self-reinforcing
Mechanical property [J] chinese scientific papers, 2015.).Chinese invention patent (CN 105566744A) disclose a kind of polypropylene from
Enhancing composite material and preparation method: coextrusion polypropylene strap and/or the polypropylene fabric are put into mold, then used
Polypropylene is molded.
But since these forming method processing costs are high, process equipment requires high, process complexity, processing conditions to want
It asks harsh, to be difficult to realize the reasons such as the production of scale, hampers the further development of material.
Chinese invention patent (CN 107972343A) discloses PP composite material and polypropylene self-reinforced composite material
And preparation method thereof, this method is that sheet material reinforcement and basis material are passed through to the composite material of casting machine roll-in different-thickness.
Although this method with before hot pressing and injection moulding process compared with, realize the production of serialization, reinforcement and base occur
Body material interface combine it is bad, cause mechanical property improve degree it is little, need to further improve.
Chinese invention patent (CN 103358516A) discloses single polymer composite product melting cladding roll-forming
Molten condition matrix is specifically cooled to supercooled state, reinforcement is drawn into matrix by method and apparatus, by squeezing out,
Roll-in by the two it is compound continue traction cooling obtain single polymer composites.Although this method also with hot pressing and injection molding before
Method is compared, and realizes the production of serialization, but since reinforcement is certain thickness fabric construction, basis material can not
It uniformly is immersed in reinforcement material internal, certain stress concentration point occurs, it is therefore desirable to is further perfect.
Summary of the invention
In view of the disadvantage mentioned above of the prior art, the invention proposes one kind, and by squeezing out, continuously to prepare polypropylene homojunction combined
The new method of material.The homojunction combined material of polypropylene of the invention, matrix and reinforcement are polypropylene, and reinforcement is fibre
Tie up form, be made composite material interface combine it is excellent, do not need addition interface adhesive；The process flow is simple, it is easy to operate,
It is low in cost, and can the continuous homojunction combined material of large scale preparation thermal plastic high polymer base, be the preparation of homojunction combined material
Provide new technical method.
The present invention is realized by following means:
A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out, comprising the following steps:
Step 1: polypropylene granules being placed in baking oven and are dried, is subsequently placed in Minitype twin-screw extrusion machine and melts, obtain polypropylene
Melt, melt polypropylene enter head package polypropylene fibre and squeeze out together, obtain mixing material；
Step 2: the resulting mixing material of step 1 being compacted and drawn by wire drawing machine, coiled, system is finally collected by collecting drum
Obtain the homojunction combined material of polypropylene.
Further, in step 1, the temperature of the baking oven is 30~60 DEG C, drying time is 12~for 24 hours.
Further, in step 1, each area's temperature of Minitype twin-screw extrusion machine is set as following parameter, and area's temperature is
140~160 DEG C, two area's temperature are 180~200 DEG C, and three area's temperature are 170~180 DEG C, and head temperature is 150~170 DEG C；Spiral shell
Bar revolving speed is 20~40rpm.
Further, in step 1, each area's temperature of Minitype twin-screw extrusion machine is set as following parameter: area's temperature is
160 DEG C, two area's temperature are 185 DEG C, and three area's temperature are 175 DEG C, and head temperature is 154~170 DEG C；Screw speed is 30rpm.
Further, the revolving speed of wire drawing machine is 10rpm in step 2, and roll temperature is 150~160 DEG C, and air pressure is
0.8MPa。
Further, the PP composite material prepared in step 2 is with a thickness of 0.4mm.
Further, the Minitype twin-screw extrusion machine includes fuselage body and head, the head include T shape plug,
Plug set and handpiece body, the plug include horizontally disposed fixed ring and vertically arranged stem, and stem is from top to bottom successively
For melt approach section, circulating tanks and melt extrusion section, melt approach section is cylindrical, and surface offers melt tank, and melt squeezes
Section is tapered in truncated cone-shaped out, and fiber channel is provided in plug, is arranged with plug set outside stem, the top of plug set and solid
Determine ring to be fixedly connected, the top of plug set inside and melt approach section fit, between lower part and circulating tanks and melt extrusion section
It is respectively formed spacing, the top of plug set, which corresponds to, is provided with connecting tube at melt tank, plug set is outer to be arranged with handpiece body, handpiece body
Top offers bottoming hole, heating rod can be inserted into bottoming hole and heated to handpiece body, connecting tube passes through handpiece body and fuselage
Ontology connection.
Further, it is provided with big polyfluortetraethylene pipe in the plug, is provided in the big polyfluortetraethylene pipe small
Polyfluortetraethylene pipe forms fiber channel, and fiber is imported from the nozzle of small polyfluortetraethylene pipe.At this time fiber channel be can more than
Lower adjusting: small polyfluortetraethylene pipe can relatively move up and down under external force with big polyfluortetraethylene pipe, adjust
Small tetrafluoroethene pipe position, that is, have adjusted the binding site of exit polypropylene fibre and melt.
Further, melt tank includes horizontal melt tank and vertical melt tank, and vertical melt tank is gradually expanded from the top down,
The groove body bottom of vertical melt tank is also provided with flow-guiding channel.
Further, the end of the connecting tube is fixedly connected with discoid connector, the connector and fuselage body
Connector is corresponding, and the outside of two connectors is equipped with fixing clamp, thermocouple conduit is additionally provided on handpiece body, for being inserted into thermoelectricity
Occasionally to detect head temperature.
The present invention introduces polypropylene fibre in melt polypropylene, and to improve polyacrylic mechanical property, experiment confirms it
Tensile strength is significantly improved.
The invention has the following advantages:
1. the homojunction combined material of polypropylene of the invention is all made of polypropylene, matrix and reinforcement have preferable interface
Wellability so that composite material interface combine it is excellent, do not need additionally to add interface adhesive.
2. material used in the homojunction combined material of polypropylene of the invention passes through melt-processed since chemical composition is identical
Recycling and reusing meets the ecological requirements of sustainable development.
3. the moulding process flow process of the homojunction combined material of polypropylene of the present invention is simple, easy to operate, manufacturing cost is low, and
It can the homojunction combined material of continuous large scale preparation.
4. the homojunction combined material internal of polypropylene of the present invention contains fiber, it is remarkably improved the mechanical strength of sheet material.
5. the homojunction combined material of polypropylene of the present invention provides new technical method for the preparation of homojunction combined material, opens up
The processing and use scope of wide high molecular material prepare homojunction combined material to other thermoplastic macromolecule materials and provide new think of
Road.
6. the head of Minitype twin-screw extrusion machine of the invention belongs to right-angle type head, feature is: (1) by the height of extrusion
Polymer melt is coated in head exit with fiber, by the traction and compacting of wire drawing machine, keeps fiber and polymer melt tight
Close is combined together；(2) melt extrusion outlet should keep preferable concentricity with the polyfluortetraethylene pipe in plug.Also,
Internal polyfluortetraethylene pipe, can be adjusted its position at melt outlet, be made to melt as fiber channel with up and down adjustment
Horse back and fiber carry out compound after body extrusion head, to realize the purpose continuously coated；(3) it is applicable to different types of
High polymer.
Detailed description of the invention
Fig. 1 is structural representation Fig. 1 of the head of Minitype twin-screw extrusion machine of the present invention.
Fig. 2 is the structural schematic diagram of plug of the present invention.
Fig. 3 is structural representation Fig. 2 of the head of Minitype twin-screw extrusion machine of the present invention.
Fig. 4 is structural representation Fig. 1 of fixing clamp of the present invention.
Fig. 5 is structural representation Fig. 2 of fixing clamp of the present invention.
Fig. 6 is the structural schematic diagram of polypropylene fibre reinforced polypropylene compound material of the present invention.
Fig. 7 be polypropylene fibre reinforced polypropylene compound material of the present invention optical microscopy amplification pictorial diagram, 70 ×,
100 ×, 150 ×, 200 ×, 300 × and 400 × indicate optical microscopy amplification factor.
It is marked in attached drawing, 1- bottoming hole, 2- melt tank, 21 horizontal melt tanks, 22 vertical melt tanks, 3- connector, 4- connects
Adapter tube, the small polyfluortetraethylene pipe of 5-, the big polyfluortetraethylene pipe of 6-, 7- handpiece body, 8- plug set, 9- plug, 91- fixed ring, 92-
Stem, 10- thermocouple conduit, 11- fixing clamp, 12- circulating tanks, 13- flow-guiding channel, 14- melt polypropylene, 15- polypropylene are fine
Dimension, the homojunction combined material of 16- polypropylene.
Specific embodiment
The following examples are intended to illustrate the invention, but is not used to limit the scope of protection of the present invention.Unless otherwise specified, real
Apply the conventional means that technological means used in example is well known to those skilled in the art.Test method in following embodiments, such as
It is conventional method without special instruction.
Polypropylene used in the embodiment of the present invention is T300 (Shanghai petrochemical industry Co., Ltd), and polypropylene fibre is north
Yan Shouke seminar, capital university of chemical technology (Sun X, Li H, Wang J, et al.Shear-Induced Interfacial
Structure of Isotactic Polypropylene(iPP)in iPP/Fiber Composites[J]
.Macromolecules, 2006,39 (25): 8720-8726.) it provides.
Used baking oven model ZKSFB-1, establishes instrument and meter Co., Ltd purchased from Shanghai in the embodiment of the present invention；
The model SJSZ-10A of Minitype twin-screw extrusion machine is purchased from Wuhan City Rui Ming plastics machinery Co., Ltd；Test plastic wire-drawing
The model SLS-160 of machine is purchased from Wuhan City Rui Ming plastics machinery Co., Ltd；CCD industrial camera model ZZV-200UVA,
Purchased from Zhong Zheng Instrument Ltd., Shenzhen.
Embodiment 1
Minitype twin-screw extrusion machine includes fuselage body and head, and as shown in Fig. 1~5, the head includes T shape plug 9, plug
Set 8 and handpiece body 7, the plug 9 is integrally formed, including horizontally disposed fixed ring 91 and vertically arranged stem 92, stem
92 are followed successively by melt approach section, circulating tanks 12 and melt extrusion section from top to bottom, and melt approach section is cylindrical, and surface opens up
There is melt tank 2, melt tank 2 includes that a horizontal melt tank 21 and several vertical melt tanks 22 specifically erect in the present embodiment
Be two to melt tank 2, both ends of horizontal melt tank 21 and interconnected with two vertical melt tanks 22, vertical melt tank 22 from
On be gradually expanded downwards, the groove body bottom of vertical melt tank 22 is also provided with flow-guiding channel 13.Melt extrusion section, which is tapered, is in
Truncated cone-shaped is provided with fiber channel in plug 9, specifically, big polyfluortetraethylene pipe 6 is provided in the plug 9, described big poly-
It is provided with small polyfluortetraethylene pipe 5 in tetrafluoroethene pipe 6 and forms fiber channel, fiber is led from the nozzle of small polyfluortetraethylene pipe 5
Enter.Big polyfluortetraethylene pipe 6 plays heat-blocking action in plug 9, pre- lint hot-spot and fuse；Internal is small by poly- four
Fluoride tubes 5 can adjust small polyfluortetraethylene pipe relative to big polyfluortetraethylene pipe 6 as fiber channel with up and down adjustment
5 position at melt outlet, make after melt extrusion head at once and fiber carry out it is compound, to realize the mesh continuously coated
's.
Plug set 8 is arranged with outside stem 92, the top of plug set 8 is fixedly connected with fixed ring 91, upper on the inside of plug set 8
Portion and melt approach section fit, are respectively formed spacing, the top pair of plug set 8 between lower part and circulating tanks 12 and melt extrusion section
It answers and is provided with connecting tube 4 at melt tank 2, be arranged with handpiece body 7 outside plug set 8, the top of handpiece body 7 offers bottoming hole 1, adds
The height of hot hole 1 is the 2/3 of 7 height of handpiece body.Connecting tube 4 passes through handpiece body 7 and connect with fuselage body.The connecting tube 4
End is fixedly connected with discoid connector 3, and the connector 3 is corresponding with the connector 3 of fuselage body, two connectors 3
Periphery is arranged with fixing clamp 11, and fixing clamp 11 is made of two arc-shaped structures, offers and connect in each arc-shaped structure
The groove that first 3 periphery matches.It is additionally provided with thermocouple conduit 10 on handpiece body 7, for being inserted into thermocouple, detects head temperature.
The melt polypropylene being plasticized by Minitype twin-screw extrusion machine is entered by outlet of extruder through connecting tube 4 horizontal
Melt tank 21, then imports vertical melt tank 22 from horizontal melt tank 21, and the flow-guiding channel 13 of vertical 22 slot bottom of melt tank makes to gather
Propylene melt can be moved smoothly through more；Melt polypropylene in latter two right vertical melt tank 22 is formed at circulating tanks 12
The whole melt extrusion section flowing downwards of circulation, melt polypropylene form tubular structure in head exit.Polypropylene fibre
Enter at the top of the small polyfluortetraethylene pipe 5 (fiber channel) of head, bottom squeezes out.Melt polypropylene is coated on polypropylene fibre
It squeezes out together outside, the homojunction combined material of polypropylene is made.
In order to squeeze out polypropylene melt physical efficiency smoothly along the uniform flow passage smooth flow in head, 8 inside of plug set
The melt extrusion section of lower part and stem 92 in smooth streamlined, surface roughness Ra is 2.1 μm；Melt polypropylene outlet with it is small
Polyfluortetraethylene pipe 5 keeps coaxial.
Embodiment 2
A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out, comprising the following steps:
Step 1: polypropylene granules being placed in baking oven, dry 12h under the conditions of 50 DEG C, achievees the purpose that dry moisture, then set
It is melted in Minitype twin-screw extrusion machine, melt polypropylene enters head through connecting tube from outlet of extruder, and by small polytetrafluoro
The polypropylene fibre that ethylene tube introduces squeezes out together.Wherein, each area's temperature of Minitype twin-screw extrusion machine is set as following parameter,
One area's temperature of extruder is 160 DEG C；Two area's temperature are 185 DEG C；Three area's temperature are 170 DEG C；Head temperature is 154 DEG C.Screw rod
Revolving speed 30rpm.
Step 2: by step 1 it is resulting it is compound after melt polypropylene and fiber by wire drawing machine be compacted and draw, finally
Collected by collecting drum coiled, wherein wire drawing machine revolving speed is 10rpm, 150 DEG C of roll temperature, air pressure 0.8MPa, prepared
PP composite material is with a thickness of 0.4mm.
Embodiment 3~16 is substantially the same manner as Example 2, and something in common no longer repeats, the difference is that twin-screw extrusion
The roll temperature of machine head temperature and wire drawing machine, as described in Table 1.
1 embodiment of table, 3~16 preparation condition
Area's temperature of Minitype twin-screw extrusion machine is 160 DEG C, two area's temperature are 185 DEG C, three area's temperature are 170 DEG C,
Under the conditions of head temperature is 154 DEG C~170 DEG C, polypropylene fibre is able to maintain original form without fusing, melt polypropylene
Plasticizing uniformly, can squeeze out very well, meet the preparation of the homojunction combined material of polypropylene.
The embodiment of the above, only presently preferred embodiments of the present invention, is only used to explain the present invention, not limit
The scope of the present invention processed to those of ordinary skill in the art certainly can be according to skill disclosed in this specification
Art content makes other embodiments easily by way of replacing or changing, therefore all made in the principle of the present invention
Changes and improvements etc., should be included in scope of the present invention patent.
Claims (10)
1. a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, which comprises the following steps:
Step 1: polypropylene granules being placed in baking oven and are dried, is subsequently placed in Minitype twin-screw extrusion machine and melts, obtain polypropylene
Melt, melt polypropylene enter the latter same extrusion of head package polypropylene fibre, obtain mixing material；
Step 2: the resulting mixing material of step 1 being compacted and drawn by wire drawing machine, coiled, system is finally collected by collecting drum
Obtain the homojunction combined material of polypropylene.
2. according to claim 1 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, in step 1, the temperature of the baking oven is 30~60 DEG C, drying time is 12~for 24 hours.
3. according to claim 1 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, in step 1, each area's temperature of Minitype twin-screw extrusion machine is set as following parameter, and area's temperature is 140~160 DEG C, and two
Area's temperature is 180~200 DEG C, and three area's temperature are 170~180 DEG C, and head temperature is 150~170 DEG C；Screw speed be 20~
40rpm。
4. according to claim 1 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, in step 1, each area's temperature of Minitype twin-screw extrusion machine is set as following parameter: area's temperature is 160 DEG C, two area's temperature
Degree is 185 DEG C, and three area's temperature are 175 DEG C, and head temperature is 154~170 DEG C；Screw speed is 30rpm.
5. according to claim 1 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, the revolving speed of wire drawing machine is 10rpm in step 2, and roll temperature is 150~160 DEG C, air pressure 0.8MPa.
6. according to claim 5 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, the homojunction combined material thickness of the polypropylene prepared in step 2 is 0.4mm.
7. according to claim 1 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, the Minitype twin-screw extrusion machine includes fuselage body and head, and the head includes T shape plug (9), plug set (8)
With handpiece body (7), the plug (9) includes horizontally disposed fixed ring (91) and vertically arranged stem (92), stem (92)
It is followed successively by melt approach section, circulating tanks (12) and melt extrusion section from top to bottom, melt approach section is cylindrical, and surface opens up
Have melt tank (2), melt extrusion section is tapered in truncated cone-shaped, and plug (9) is interior to be provided with fiber channel, is arranged outside stem (92)
Have plug set (8), the top of plug set (8) is fixedly connected with fixed ring (91), and the top on the inside of plug set (8) and melt enter
Section fits, is respectively formed spacing between lower part and circulating tanks (12) and melt extrusion section, and the top of plug set (8) corresponds to melt tank
(2) it is provided with connecting tube (4), is arranged with handpiece body (7) outside plug set (8), handpiece body offers bottoming hole at the top of (7) at
(1), connecting tube (4) passes through handpiece body (7) and connect with fuselage body.
8. according to claim 7 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, is provided with big polyfluortetraethylene pipe (6) in the plug (9), is provided in the big polyfluortetraethylene pipe (6) small by poly- four
Fluoride tubes (5) form fiber channel, and fiber is imported from the nozzle of small polyfluortetraethylene pipe (5).
9. according to claim 7 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, melt tank (2) includes horizontal melt tank (21) and vertical melt tank (22), and vertical melt tank (22) is gradually expanded from the top down
Greatly, the groove body bottom of vertical melt tank (22) is also provided with flow-guiding channel (13).
10. according to claim 7 a kind of by squeezing out the method for continuously preparing the homojunction combined material of polypropylene, feature
It is, the end of the connecting tube (4) is fixedly connected with discoid connector (3), the connection of connector (3) and fuselage body
Head (3) is corresponding, and the outside of two connectors is equipped with fixing clamp (11), is additionally provided with thermocouple conduit (10) on handpiece body (7), uses
To be inserted into thermocouple to detect head temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098198.4A CN109732867A (en) | 2019-01-31 | 2019-01-31 | A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098198.4A CN109732867A (en) | 2019-01-31 | 2019-01-31 | A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109732867A true CN109732867A (en) | 2019-05-10 |
Family
ID=66367055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910098198.4A Pending CN109732867A (en) | 2019-01-31 | 2019-01-31 | A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109732867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112759786A (en) * | 2020-12-30 | 2021-05-07 | 郑州大学 | Preparation method of polypropylene homogeneous fiber composite foam material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522712A (en) * | 2016-01-11 | 2016-04-27 | 广州金发绿可木塑科技有限公司 | Extruding die for preparing continuous long fiber-reinforced PVC wood-plastic products |
| CN107972343A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | PP composite material and polypropylene self-reinforced composite material and preparation method thereof |
-
2019
- 2019-01-31 CN CN201910098198.4A patent/CN109732867A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522712A (en) * | 2016-01-11 | 2016-04-27 | 广州金发绿可木塑科技有限公司 | Extruding die for preparing continuous long fiber-reinforced PVC wood-plastic products |
| CN107972343A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | PP composite material and polypropylene self-reinforced composite material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112759786A (en) * | 2020-12-30 | 2021-05-07 | 郑州大学 | Preparation method of polypropylene homogeneous fiber composite foam material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101180176B (en) | Composite tube production | |
| CN103707496B (en) | A kind of Wrapping formed tubing of thermoplastic fibre and its moulding process | |
| CN103847111B (en) | A kind of forming method of continuous fiber reinforced thermoplastic resin sheet material | |
| DK168327B1 (en) | Process for the preparation of thermoplastic polymer profiles by pultrusion, apparatus for use in and products obtained by the process | |
| RU2008126169A (en) | METHOD FOR PRODUCING FORMED COMPOSITE PRODUCTS (OPTIONS) AND OBTAINING PREPARATIONS FOR COMPOSITE PRODUCTS | |
| CN102729483A (en) | Continuous long fiber-reinforced thermoplastic resin and its preparation method and molding equipment | |
| CN107866954B (en) | Method and apparatus for manufacturing continuous fiber reinforced thermoplastic resin prepreg tape | |
| CN202499939U (en) | Intelligent multifunctional novel fiber test spinning machine | |
| CN103030891A (en) | Long glass fiber-reinforced polypropylene composite material and preparation method thereof | |
| CN205631113U (en) | Serialization preparation facilities of continuous fibers reinforcing thermoplasticity preimpregnation material | |
| CN103753831A (en) | Dipping mold and dipping method for continuous fiber reinforced thermoplastic composite materials | |
| CN105346200A (en) | Thermoplastic prepreg prepared through continuous laminating method and method thereof | |
| CN104669636B (en) | A kind of preparation method of assorted fibre RPP high strength composite | |
| JP5059259B2 (en) | Long fiber pellet and method and apparatus for producing long fiber pellet | |
| CN1385296A (en) | Technological method for pultrusion of glass fibre reinforced plastics pipe and die thereof | |
| CN109732867A (en) | A method of the homojunction combined material of polypropylene is continuously prepared by squeezing out | |
| CN108948487A (en) | A kind of long fibre or continuous fiber orientation enhancing thermoplastic polymer composite material and preparation method thereof | |
| CN112847925A (en) | Continuous fiber reinforced 3D printing composite material melt impregnation system and method | |
| CN107283867A (en) | Prepreg tape winding structure pipe and preparation method thereof | |
| CN205704876U (en) | A kind of thermoplastic composite plug pultrusion die | |
| CN113942158B (en) | Method and device for forming supercooling film overheat wire of single polymer composite material product | |
| CN217531957U (en) | Apparatus for preparing thermoplastic composite material | |
| CN115122676A (en) | Fiber composite material forming device and process | |
| CN107738428A (en) | The method of extruding machine mold and production continuous fiber enhancing composite | |
| CN203999939U (en) | A kind of superhigh molecular weight polyethylene fibers production equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
|
| RJ01 | Rejection of invention patent application after publication |