CN111004518A - Conductive modified thermoplastic elastomer composite film and preparation method thereof - Google Patents

Conductive modified thermoplastic elastomer composite film and preparation method thereof Download PDF

Info

Publication number
CN111004518A
CN111004518A CN201910988786.5A CN201910988786A CN111004518A CN 111004518 A CN111004518 A CN 111004518A CN 201910988786 A CN201910988786 A CN 201910988786A CN 111004518 A CN111004518 A CN 111004518A
Authority
CN
China
Prior art keywords
drying
particles
drying tower
thermoplastic elastomer
air inlet
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
Application number
CN201910988786.5A
Other languages
Chinese (zh)
Inventor
周喜峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Hongyuan New Material Science & Technology Co ltd
Original Assignee
Jiangsu Hongyuan New Material Science & Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Hongyuan New Material Science & Technology Co ltd filed Critical Jiangsu Hongyuan New Material Science & Technology Co ltd
Priority to CN201910988786.5A priority Critical patent/CN111004518A/en
Publication of CN111004518A publication Critical patent/CN111004518A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2400/00—Characterised by the use of unspecified polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C08K3/042—Graphene or derivatives, e.g. graphene oxides

Abstract

The invention discloses a conductive modified thermoplastic elastomer composite film, which is prepared from a thermoplastic matrix material, 20-25% of graphene powder and 0.5-1% of an auxiliary agent by mass of a thermoplastic polyurethane elastomer; the preparation method comprises the following steps: primary drying and dehumidifying treatment, TPE mixed particle preparation, TPU mixed particle preparation, secondary drying and dehumidifying treatment, mixed particle preparation by blow molding and film forming, secondary drying and dehumidifying treatment and blow molding and film forming. According to the invention, through the formula design of the high formula amount graphene powder, the screw air compressor and the heatless regeneration adsorption dryer are adopted for combined drying treatment, and the dried graphene powder and the thermoplastic elastomer are compounded to form mixed particles, so that the prepared film product has low resistivity, and the antistatic performance is effectively improved; on the other hand, the strength of the obtained conductive modified thermoplastic elastomer composite film is enhanced by dehumidifying the raw materials.

Description

Conductive modified thermoplastic elastomer composite film and preparation method thereof
Technical Field
The invention relates to the field of thermoplastic polyurethane, in particular to a conductive modified thermoplastic elastomer composite film and a preparation method thereof.
Background
TPE (thermoplastic elastomer) is a thermoplastic elastomer material, has the characteristics of high strength, high resilience, weather resistance, temperature resistance, no need of vulcanization, injection molding processing and wide application field.
The TPE film can form a self-supporting film through extrusion, is used for compounding of garment materials, plays a role in protection, and allows gas to circulate. When the existing TPE film is used as clothing fabric, the application of the TPE film in the fields of clothing, electronics and the like is limited due to poor antistatic performance.
Disclosure of Invention
The invention mainly solves the technical problem of providing a conductive modified thermoplastic elastomer composite film and a preparation method thereof.
In order to solve the technical problems, the invention adopts a technical scheme that: the conductive modified thermoplastic elastomer composite film is characterized in that the preparation material mainly comprises a thermoplastic matrix material, 20-25% of graphene powder and 0.5-1% of an auxiliary agent by mass of a thermoplastic polyurethane elastomer; wherein the thermoplastic matrix material comprises TPE particles and TPU particles.
In a preferred embodiment of the invention, the thermoplastic matrix material comprises TPE particles and TPU particles in a mass ratio of 3: 1-2: 2.
In a preferred embodiment of the invention, the auxiliary agent comprises a slip agent and an antioxidant in equal parts by mass.
In order to solve the technical problems, the invention adopts a technical scheme that: the preparation method of the conductive modified thermoplastic elastomer composite film comprises the following steps:
(1) primary drying and dehumidifying treatment: dehumidifying and drying the graphene powder with the formula amount by using a heatless regeneration adsorption dryer to ensure that the water content is less than or equal to 2 ppm;
(2) preparing TPE mixed particles: mixing, extruding and granulating a mixed material of 30-35% of the formula amount of dried TPE granules and 50% of graphene powder by a double-screw extruder to obtain graphene modified TPE mixed granules;
(3) preparing TPU mixed particles: mixing, extruding and granulating a mixed material of 30-35% of formula amount of dried TPU particles and 50% of graphene powder by a double-screw extruder to obtain graphene modified TPU mixed particles;
(4) secondary drying and dehumidifying treatment: carrying out dehumidification and drying treatment on the TPE mixed particles and the TPU mixed particles cut into particles in the steps (2) and (3) by using a heatless regeneration adsorption dryer to ensure that the water content is less than 2 ppm;
(5) and (3) blow molding to form a film: and (3) mixing the TPE mixed particles and the TPU mixed particles dried in the step (4) with the TPE particles, the TPU particles and the auxiliary agent in the rest formula amount, putting the mixture into a blow molding machine, plasticizing the mixture by a screw rod, performing extrusion blow molding by a die head, cooling by an inner air ring and an outer air ring, performing rotary traction, trimming by a trimming machine, and winding to obtain the conductive modified thermoplastic elastomer composite film.
In a preferred embodiment of the present invention, in the steps (1) and (4), the heatless regenerative adsorption dryer is connected with a screw air compressor.
In a preferred embodiment of the present invention, the non-thermal regeneration adsorption dryer comprises: the device comprises a first drying tower, a second drying tower, a dew point detector and a controller; the bottom end of the first drying tower is connected with a compressed air inlet through an air inlet pipe with a first air inlet switch valve, and the bottom end of the second drying tower is connected with the compressed air inlet through an air inlet pipe with a second air inlet switch valve; the top ends of the first drying tower and the second drying tower are respectively communicated with an air outlet pipeline; the air outlet pipelines of the first drying tower and the second drying tower are communicated through a bypass pipeline, and the bypass pipeline is provided with an adjusting valve; the air outlet pipelines of the first drying tower and the second drying tower are respectively communicated with the dew point detectors; the dew point detector, the first air inlet switch valve and the second air inlet switch valve are respectively in wireless connection with the controller.
In a preferred embodiment of the present invention, the bottom ends of the first drying tower and the second drying tower are respectively provided with a buffer baffle, the buffer baffle is internally provided with a plurality of through ventilation holes, and each ventilation hole is in a "or" wiring arrangement "in the buffer baffle.
In a preferred embodiment of the present invention, the pore diameter of the air outlet end of the ventilation duct is larger than that of the air inlet end thereof.
In a preferred embodiment of the present invention, the controller is a PLC controller; the controller comprises a remote switch module, a wireless transmission module, a dew point control module and a drying/regeneration conversion module; the dew point detector is wirelessly connected with the dew point control module through the wireless transmission module; the first air inlet switch valve and the second air inlet switch valve are in wireless connection with the drying/regeneration conversion module through the wireless transmission module.
In a preferred embodiment of the present invention, in the step (5), the rotation speed of the screw of the blow molding machine during plasticizing is 300rpm, and the die temperature of the extruder is 255 ℃.
The invention has the beneficial effects that: according to the conductive modified thermoplastic elastomer composite film and the preparation method thereof, the formula design of the high formula amount of graphene powder is adopted, a screw air compressor and a heatless regeneration adsorption dryer are combined for drying treatment, and the dried graphene powder and the thermoplastic elastomer are compounded to form mixed particles, so that the prepared film product has low resistivity, and on one hand, the antistatic performance of the film is effectively improved; on the other hand, the raw materials are effectively dehumidified for a plurality of times, so that the strength of the obtained conductive modified thermoplastic elastomer composite film is enhanced, the durability is effectively improved, and the comprehensive performance is stronger.
Drawings
FIG. 1 is a schematic perspective view of a preferred embodiment of a heatless regenerative adsorption dryer;
FIG. 2 is a schematic view of the configuration of the upper surface of the baffle shown;
FIG. 3 is a schematic view of the internal venting channels of the baffle shown;
FIG. 4 is a schematic diagram of the modules of the controller shown;
the parts in the drawings are numbered as follows: 1. the drying device comprises a first drying tower, 2, a second drying tower, 3, a dew point detector, 4, a controller, 5, a first air inlet switch valve, 6, a second air inlet switch valve, 7, a compressed air inlet, 8, an activated carbon filter, 9, a first exhaust valve, 10, a second exhaust valve, 11, a silencer, 12, an air outlet pipeline, 13, a bypass pipeline, 14, an adjusting valve, 15, a buffer guide plate, 151, a ventilation channel, 16, a first drying box and 17, a second drying box.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1-4, an embodiment of the present invention includes:
example 1
The invention discloses a conductive modified thermoplastic elastomer composite film, which is modified by adding graphene powder, so that the antistatic capability is improved. The processing property of the base material is improved by mixing TPE and TPU thermoplastic elastomer particles as the base material.
Specifically, the preparation material mainly comprises a thermoplastic matrix material, 20% of graphene powder and 0.5% of auxiliary agent by mass of the thermoplastic polyurethane elastomer; the thermoplastic matrix material comprises TPE particles and TPU particles in a mass ratio of 3: 1; the auxiliary agent comprises a slip agent and an antioxidant in equal parts by mass.
In the film production process, if the raw material has a large water content, the resulting film product has pores, resulting in a low strength and poor durability of the film, and thus, effective dehumidification of the raw material is essential.
The invention relates to a preparation method of a conductive modified thermoplastic elastomer composite film, which adopts a screw air compressor and a heatless regeneration adsorption dryer to carry out combined dehumidification to ensure that the water content of raw materials is less than 2ppm, and comprises the following steps:
(1) primary drying and dehumidifying treatment: dehumidifying and drying the graphene powder with the formula amount by using a heatless regeneration adsorption dryer connected with a screw air compressor to ensure that the water content is less than or equal to 2 ppm;
(2) preparing TPE mixed particles: mixing, extruding and granulating a mixed material of 30% of the formula amount of dried TPE granules and 50% of graphene powder by a double-screw extruder to obtain graphene modified TPE mixed granules; the temperature of each plasticizing section of a screw of the double-screw extruder is respectively as follows: 215 ℃, 220 ℃, 235 ℃ and 255 ℃; the dried graphene powder and the TPE elastomer particles are prepared into the mixed particles, so that on one hand, the graphene powder can be effectively prevented from absorbing water in the subsequent process, on the other hand, the compatibility of the graphene powder and the TPE particles in the subsequent processing can be enhanced, and the dispersion performance is improved;
(3) preparing TPU mixed particles: mixing, extruding and granulating a mixed material of 30% of formula amount of dried TPU particles and 50% of graphene powder by a double-screw extruder to obtain graphene modified TPU mixed particles; the temperature of each plasticizing section of a screw of the double-screw extruder is respectively as follows: 185 ℃, 195 ℃, 200 ℃, 205 ℃ and 210 ℃; the dried graphene powder and TPU elastomer particles are prepared into mixed particles, so that on one hand, the graphene powder can be effectively prevented from absorbing water in the subsequent process, on the other hand, the compatibility of the graphene powder and the TPU particles in the subsequent processing can be enhanced, and the dispersion performance is improved;
(4) secondary drying and dehumidifying treatment: carrying out dehumidification and drying treatment on the TPE mixed particles and the TPU mixed particles cut into particles in the steps (2) and (3) by using a heatless regeneration adsorption dryer to ensure that the water content is less than 2 ppm; the granules obtained by extrusion and granulation contain moisture due to water cooling before granulation, and the moisture content in the final finished product can be ensured to be less than 2ppm through secondary drying and dehumidification treatment;
(5) and (3) blow molding to form a film: mixing the TPE mixed particles and the TPU mixed particles dried in the step (4) with the TPE particles, the TPU particles and the auxiliary agent in the rest formula amount, putting the mixture into a blow molding machine, plasticizing the mixture by a screw rod, performing extrusion blow molding by a die head, cooling by an inner air ring and an outer air ring, performing rotary traction, and performing edge trimming and winding by an edge trimmer to obtain the conductive modified thermoplastic elastomer composite film; the rotation speed of the screw of the blow molding machine during plasticizing is 300rpm, and the die head temperature of the extruder is 255 ℃.
Specifically, the heatless regenerative adsorption dryer can be in contact with the screw air compressor at any time in the whole load cycle of the screw air compressor, and the dehumidification effect can be effectively ensured, so that the water content of the raw material is less than 2 ppm. The method specifically comprises the following steps: a first drying tower 1, a second drying tower 2, a dew point detector 3 and a controller 4; wherein, first drying tower 1 and second drying tower 2 pass through the support to be supported fixedly, the bottom of first drying tower 1 is connected with compressed air entry 7 through the intake pipe that has first admission ooff valve 5, the bottom of second drying tower 2 through the intake pipe that has second admission ooff valve 6 with compressed air entry 7 is connected, compressed air entry 7 with still install active carbon filter 8 between first admission ooff valve 5 and the second admission ooff valve 6 and be used for the impurity in the filtering compressed air.
The top ends of the first drying tower 1 and the second drying tower 2 are respectively communicated with an air outlet pipeline 12; the air outlet pipelines 12 of the first drying tower 1 and the second drying tower 2 are communicated through a bypass pipeline 13, and the bypass pipeline 13 is provided with an adjusting valve 14. Through the design of the bypass pipeline 13, a part of the dry gas exhausted from the drying tower with the drying function enters another drying tower through the bypass pipeline to be dehydrated and regenerated, so that the drying and regeneration of the two drying towers are alternately carried out, and the continuous work of the whole dryer is realized. The flow of the drying gas for the regeneration process can be regulated by means of a regulating valve 14 on the bypass line 13.
The air outlet pipelines 12 of the first drying tower 1 and the second drying tower 2 are respectively communicated with the dew point detector 3. Through the design of dew point detector 3, survey the gas of the gas outlet of no heat regenerative dryer, be convenient for utilize controller 4 to carry out the control of dew point, and then control outlet gas's temperature, carry out the control to low temperature when realizing no heat.
The controller 4 is a PLC controller. The dew point detector 3, the first air inlet switch valve 5 and the second air inlet switch valve 6 are respectively in wireless connection with the controller 4. Specifically, the controller 4 comprises a remote switch module, a wireless transmission module, a dew point control module and a drying/regeneration conversion module; the dew point detector 3 is in wireless connection with the dew point control module through the wireless transmission module, so that the dew point control module can remotely control the dew point detector; the first air inlet switch valve 5 and the second air inlet pipe switch valve 6 are in wireless connection with the drying/regeneration conversion module through the wireless transmission module, and therefore the drying/regeneration conversion module can control the first air inlet switch valve 5 and the second air inlet pipe switch valve 6 to be opened and closed remotely.
And the bottom ends of the first drying tower 1 and the second drying tower 2 are respectively provided with a buffer guide plate 15. The buffering air deflector 15 is provided with a plurality of through air vents 151, and each air vent 151 is arranged in the buffering air deflector 15 in a "o" shape or a "o" shape. Through the design of buffering guide plate 15, can cushion the protection to the filler in first drying tower 1 and the second drying tower 2, prevent that compressed gas's powerful blowing power from making its destruction, improve the life of desicator.
Further, the pore diameter of the air outlet end (i.e. the end facing the inside of the drying tower) of the air vent 151 is larger than that of the air inlet end (the end connected with the air inlet pipe). Through the structural design of the ventilating duct 151 in the buffering guide plate 15, the flow speed of the air inflow can be further buffered, so that the protection of the drying filler in the drying tower is further improved, and the double buffering protection effect is realized.
In addition, first discharge valve 9 is still installed to the bottom of first drying tower 1, second discharge valve 10 is installed to the bottom of second drying tower 2, first discharge valve 9 and second discharge valve 10 are located respectively the upper portion of buffering guide plate 15 to communicate with muffler 11, the huge noise that brings when discharging influences surrounding work environment.
A first drying box 16 is also arranged between the top end of the first drying tower 1 and a connecting point of the air outlet pipeline 12 and the bypass pipeline 13; a second drying box 17 is also arranged between the top end of the second drying tower 2 and a connecting point of the air outlet pipeline 12 and the bypass pipeline 13; the first drying box 16 and the second drying box 17 are filled with zeolite molecular sieves as adsorbents. Through the design of the first drying box 16 and the second drying box 17, the drying effect of the gas can be further improved, and the regeneration effect is particularly improved, so that the regeneration gas consumption is reduced, and the energy is saved.
The drying-regenerating working principle of the energy-saving high-efficiency heatless regeneration dryer is as follows:
when the first drying tower 1 and the second drying tower 2 are in an operating state, a drying/regenerating module of a manual or controller controls the first air inlet switch valve 5 and the second exhaust valve 10 to be in an opening state, compressed air enters the first drying tower 1 from a compressed air inlet 7 to realize drying and dehydration, dried gas enters an air outlet pipeline 12 from the top end of the first drying tower 1 and is exhausted, part of gas enters the second drying tower 2 through a bypass pipeline to be regenerated, and meanwhile, a dew point detected by a dew point detector by the dried gas in the air outlet pipeline 12 is fed back to the controller through the dew point detecting module; on the contrary, the second air inlet switch valve 6 and the first exhaust valve 9 are in an open state, compressed air enters the second drying tower 2 from the compressed air inlet 7 to realize drying and dehydration, dried gas enters the air outlet pipeline 12 from the top end of the second drying tower 2 and is exhausted, and part of the gas enters the first drying tower 1 through the bypass pipeline to be regenerated.
As compared with existent product, the resistivity of said film product obtained in the above-mentioned example is reduced by 20%, and its raw material water content is less than or equal to 2ppm, and its film strength is raised by 10%.
Example 2
The difference from the embodiment 1 is that the preparation material of the conductive modified thermoplastic elastomer composite film mainly comprises a thermoplastic matrix material, 25% of graphene powder and 1% of auxiliary agent by mass of the thermoplastic polyurethane elastomer; the thermoplastic matrix material comprises TPE particles and TPU particles in a mass ratio of 1: 1; the auxiliary agent comprises a slip agent and an antioxidant in equal parts by mass.
In the preparation process, 35% of TPE and 35% of TPU granules are mixed with 50% of graphene powder to prepare mixed granules.
Tests show that compared with the existing products, the film product obtained in the embodiment has the advantages that the resistivity is reduced by more than 22%, the water content of the raw material is less than or equal to 2ppm, and the film strength is improved by 11%.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The conductive modified thermoplastic elastomer composite film is characterized in that the preparation material mainly comprises a thermoplastic matrix material, 20-25% of graphene powder and 0.5-1% of an auxiliary agent by mass of a thermoplastic polyurethane elastomer; wherein the thermoplastic matrix material comprises TPE particles and TPU particles.
2. The conductive modified thermoplastic elastomer composite film as claimed in claim 1, wherein the thermoplastic matrix material comprises TPE particles and TPU particles in a mass ratio of 3: 1-2: 2.
3. The conductive modified thermoplastic elastomer composite film as claimed in claim 1, wherein the auxiliary comprises a slip agent and an antioxidant in equal parts by mass.
4. The preparation method of the conductive modified thermoplastic elastomer composite film is characterized by comprising the following steps of:
(1) primary drying and dehumidifying treatment: dehumidifying and drying the graphene powder with the formula amount by using a heatless regeneration adsorption dryer to ensure that the water content is less than or equal to 2 ppm;
(2) preparing TPE mixed particles: mixing, extruding and granulating a mixed material of 30-35% of the formula amount of dried TPE granules and 50% of graphene powder by a double-screw extruder to obtain graphene modified TPE mixed granules;
(3) preparing TPU mixed particles: mixing, extruding and granulating a mixed material of 30-35% of formula amount of dried TPU particles and 50% of graphene powder by a double-screw extruder to obtain graphene modified TPU mixed particles;
(4) secondary drying and dehumidifying treatment: carrying out dehumidification and drying treatment on the TPE mixed particles and the TPU mixed particles cut into particles in the steps (2) and (3) by using a heatless regeneration adsorption dryer to ensure that the water content is less than 2 ppm;
(5) and (3) blow molding to form a film: and (3) mixing the TPE mixed particles and the TPU mixed particles dried in the step (4) with the TPE particles, the TPU particles and the auxiliary agent in the rest formula amount, putting the mixture into a blow molding machine, plasticizing the mixture by a screw rod, performing extrusion blow molding by a die head, cooling by an inner air ring and an outer air ring, performing rotary traction, trimming by a trimming machine, and winding to obtain the conductive modified thermoplastic elastomer composite film.
5. The method of claim 4, wherein the non-thermal regeneration adsorption dryer is connected to a screw air compressor in the steps (1) and (4).
6. The method of claim 5, wherein the non-thermal regeneration adsorption dryer comprises: the device comprises a first drying tower, a second drying tower, a dew point detector and a controller; the bottom end of the first drying tower is connected with a compressed air inlet through an air inlet pipe with a first air inlet switch valve, and the bottom end of the second drying tower is connected with the compressed air inlet through an air inlet pipe with a second air inlet switch valve; the top ends of the first drying tower and the second drying tower are respectively communicated with an air outlet pipeline; the air outlet pipelines of the first drying tower and the second drying tower are communicated through a bypass pipeline, and the bypass pipeline is provided with an adjusting valve; the air outlet pipelines of the first drying tower and the second drying tower are respectively communicated with the dew point detectors; the dew point detector, the first air inlet switch valve and the second air inlet switch valve are respectively in wireless connection with the controller.
7. The method for preparing a conductive modified thermoplastic elastomer composite film according to claim 6, wherein the bottom ends of the first drying tower and the second drying tower are respectively provided with a buffer baffle plate, the buffer baffle plate is internally provided with a plurality of through ventilation holes, and each ventilation hole is arranged in the buffer baffle plate in a "" shape or a "" shape.
8. The method for preparing a conductive modified thermoplastic elastomer composite film as claimed in claim 7, wherein the pore diameter of the air outlet end of the ventilation channel is larger than that of the air inlet end thereof.
9. The method for preparing the conductive modified thermoplastic elastomer composite film as claimed in claim 5, wherein the controller is a PLC controller; the controller comprises a remote switch module, a wireless transmission module, a dew point control module and a drying/regeneration conversion module; the dew point detector is wirelessly connected with the dew point control module through the wireless transmission module; the first air inlet switch valve and the second air inlet switch valve are in wireless connection with the drying/regeneration conversion module through the wireless transmission module.
10. The method for preparing an electrically conductive modified thermoplastic elastomer composite film as claimed in claim 3, wherein in the step (5), the rotation speed of the screw of the blow molding machine during plasticizing is 300rpm, and the die temperature of the extruder is 255 ℃.
CN201910988786.5A 2019-10-17 2019-10-17 Conductive modified thermoplastic elastomer composite film and preparation method thereof Pending CN111004518A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910988786.5A CN111004518A (en) 2019-10-17 2019-10-17 Conductive modified thermoplastic elastomer composite film and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910988786.5A CN111004518A (en) 2019-10-17 2019-10-17 Conductive modified thermoplastic elastomer composite film and preparation method thereof

Publications (1)

Publication Number Publication Date
CN111004518A true CN111004518A (en) 2020-04-14

Family

ID=70111250

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910988786.5A Pending CN111004518A (en) 2019-10-17 2019-10-17 Conductive modified thermoplastic elastomer composite film and preparation method thereof

Country Status (1)

Country Link
CN (1) CN111004518A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140005684A (en) * 2012-07-06 2014-01-15 김기형 Thermoplastic polyurethane
CN105131726A (en) * 2015-08-13 2015-12-09 蚌埠南自仪表有限公司 Thermoplastic heat-dissipating coating material and preparation method thereof
CN106279732A (en) * 2016-08-30 2017-01-04 昆山华阳新材料股份有限公司 A kind of antistatic film based on Graphene and preparation method thereof
CN107815095A (en) * 2017-10-12 2018-03-20 江苏宏远新材料科技有限公司 One kind barrier virus penetrates operating coat film
CN108034227A (en) * 2017-12-12 2018-05-15 东莞市雄林新材料科技股份有限公司 One kind has high dielectric property and durothermic TPU film and preparation method thereof
CN108070245A (en) * 2016-11-08 2018-05-25 海口未来技术研究院 Urethane composition, polyurethane film, covering and aerostatics
CN108342004A (en) * 2018-02-09 2018-07-31 中金态和（武汉）石墨烯科技股份有限公司 A kind of graphene fire retardant elastic composite material, composite membrane and preparation method thereof
WO2018202747A1 (en) * 2017-05-05 2018-11-08 Directa Plus S.P.A. Polyurethane film comprising graphene and preparation process thereof.
CN209475951U (en) * 2019-01-15 2019-10-11 重庆渝能滤油机制造有限公司 Heatless regeneration absorption drier

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140005684A (en) * 2012-07-06 2014-01-15 김기형 Thermoplastic polyurethane
CN105131726A (en) * 2015-08-13 2015-12-09 蚌埠南自仪表有限公司 Thermoplastic heat-dissipating coating material and preparation method thereof
CN106279732A (en) * 2016-08-30 2017-01-04 昆山华阳新材料股份有限公司 A kind of antistatic film based on Graphene and preparation method thereof
CN108070245A (en) * 2016-11-08 2018-05-25 海口未来技术研究院 Urethane composition, polyurethane film, covering and aerostatics
WO2018202747A1 (en) * 2017-05-05 2018-11-08 Directa Plus S.P.A. Polyurethane film comprising graphene and preparation process thereof.
CN107815095A (en) * 2017-10-12 2018-03-20 江苏宏远新材料科技有限公司 One kind barrier virus penetrates operating coat film
CN108034227A (en) * 2017-12-12 2018-05-15 东莞市雄林新材料科技股份有限公司 One kind has high dielectric property and durothermic TPU film and preparation method thereof
CN108342004A (en) * 2018-02-09 2018-07-31 中金态和（武汉）石墨烯科技股份有限公司 A kind of graphene fire retardant elastic composite material, composite membrane and preparation method thereof
CN209475951U (en) * 2019-01-15 2019-10-11 重庆渝能滤油机制造有限公司 Heatless regeneration absorption drier

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
DUC ANH NGUYEN等: "Morphological and physical properties of a thermoplastic polyurethane reinforced with functionalized graphene sheet", 《POLYMER INTERNATIONAL》 *
冯亚青等: "《助剂化学及工艺学》", 30 June 1997, 化学工业出版社 *
化学工业部基本建设司，中国五环化学工程总公司编: "《化工压力容器设计技术问答》", 31 March 1993, 《氮肥设计》编辑部 *
合成革化学与工艺学: "《合成革化学与工艺学》", 30 November 2015, 中国轻工业出版社 *
吴立峰等: "《色母粒应用技术问答》", 31 July 2000, 化学工业出版社 *
姚方元等: "《石墨烯与轨道交通》", 31 August 2016, 湖南教育出版社 *
孙哲等: "石墨烯/聚氨酯复合涂饰剂的制备及性能研究", 《皮革科学与工程》 *
顾芳珍等: "《化工设备设计基础》", 31 August 1994, 天津大学出版社 *

Similar Documents

Publication Publication Date Title
CN100587376C (en) Adsorption dehumifier for granules of plastic materials
CN204787600U (en) Fluidized bed dryer
CN1550744A (en) Molecular filter dehumidifying device and its equipment
CN206131670U (en) Lithium cell raw materials for production microwave drying apparatus
CN110885548A (en) Antistatic modified thermoplastic polyurethane film and preparation method thereof
CN105258297A (en) Humidity control system and humidity control method
CN102430323B (en) Dehumidify device for indoor environment
CN111004518A (en) Conductive modified thermoplastic elastomer composite film and preparation method thereof
CN1139777C (en) A drying device
CN205066049U (en) Moisture adjusting system
CN205631100U (en) A patting device for brace is grain reduction moisture surely
CN101711972B (en) Material with humidifying function and preparation method thereof
JP7280652B1 (en) Dehumidifying and drying system for synthetic resin molding materials
CN211799896U (en) Energy-saving efficient heatless regenerative dryer
CN209999522U (en) Particle production device for preparing regenerated particles from waste fishing nets
CN108284538B (en) Dehumidification dryer and dehumidification method for dehumidification by using waste heat of thermoplastic molding
CN205995245U (en) There is the collecting bin collection device of moistureproof dust removing effects
CN211601633U (en) Water-saving cooling tower with demisting module
CN202041059U (en) Vertical type double-tube dryer
JP4105922B2 (en) Replacement ventilation type low dew point room and air conditioning method of low dew point room by replacement ventilation
CN210187999U (en) Sulfuration chamber waste gas collecting cover and sulfuration machine waste gas treatment system
CN102003869B (en) Vertical double-cylinder drier
CN208170991U (en) Dry machine at the beginning of a kind of xanthate
CN101362382A (en) PTFE extruding adjuvant recovery method
JP2009078239A (en) Low dew point air manufacturing apparatus

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20200414