CN110480974A - It is a kind of for producing the extrusion method of PTFE strip - Google Patents

It is a kind of for producing the extrusion method of PTFE strip Download PDF

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Publication number
CN110480974A
CN110480974A CN201910678771.9A CN201910678771A CN110480974A CN 110480974 A CN110480974 A CN 110480974A CN 201910678771 A CN201910678771 A CN 201910678771A CN 110480974 A CN110480974 A CN 110480974A
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CN
China
Prior art keywords
ptfe
mixture
filling barrel
producing
extrusion method
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Pending
Application number
CN201910678771.9A
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Chinese (zh)
Inventor
马建伟
王雪琴
臧小影
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Qingdao University
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Qingdao University
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Priority to CN201910678771.9A priority Critical patent/CN110480974A/en
Publication of CN110480974A publication Critical patent/CN110480974A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • 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
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/58—Measuring, controlling or regulating
    • B29C2043/5808—Measuring, controlling or regulating pressure or compressing force
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

It is especially a kind of for producing the extrusion method of PTFE strip the present invention relates to PTFE strip production technical field, it is a kind of for producing the extrusion method of PTFE strip, comprising the following steps: (1), mixing；(2), heat preservation is stood；(3), the material of agglomeration is broken up in screening, into automatic weigh hopper；(4), mixture is pressed into green body, at this point, being conveyed at other filling barrel weigh hoppers automatically, receives weigh hopper feed；(5), green body is squeezed out with long strips, at this point, the filling barrel of other material feedings be delivered to automatically it is pre- be pressed at blank process, be pressed into the filling barrel that blank process suppresses other material feedings in advance；(6), it after squeezing out green body with long strips, conveys and is fed again at the filling barrel to weigh hopper to have discharged automatically.Consumption of the production process to manpower is saved, reduce manual operation influences caused by product, realizes PTFE long fibre continuous production, effectively improves production efficiency, guarantees the stability of product quality.

Description

It is a kind of for producing the extrusion method of PTFE strip
Technical field
It is especially a kind of for producing the extrusion method of PTFE strip the present invention relates to PTFE strip production technical field.
Background technique
Polytetrafluoroethylene (PTFE) (PTFE) fiber is a kind of very unmanageable organic special fibre, with excellent resistance to height Warm nature energy, chemical stability, good electrical insulating property, non-adhesive, weatherability, anti-flammability and good self-lubrication are solutions Certainly many key technologies and the indispensable important materials of production technology level are improved in scientific research, military project and the fields such as civilian[1]。 PTFE fiber is widely used in fields such as chemical industry, petroleum, weaving, medical treatment, machinery at present, in addition to this, it or waste incineration The preferred material in the fields such as space suit, fire-entry suit, filtering material and space material.
In recent years, China only in terms of filtering material to PTFE fiber product year total demand just more than 4000 tons, In be even more more than 1200 tons to the annual requirement of PTFE long filament.But China it is theoretical to the preparation of high-intensitive PTFE long filament at present, Shortage is compared in preparation method and preparation practice, so can only meet the domestic application demand to PTFE long filament by import.
At this stage can in the PTFE long filament technology of preparing of industrialization, paste-extruded method is one of widely used method, It needs successively to pour into each hopper by manually weighing before mixture merging briquetting press, squeezes out column through hydraulic action.Column Shape body will also be using hydraulic taking-up barred body.Currently, in entire production procedure, artificial weighing, pre-molding and extrusion long filament mistake Although journey is completed in a workshop, centre needs artificial help, causes manpower and waste of time, imitates production Rate is low, and the monofilament finished product squeezed out is unstable.Process as described above is needed by the mixed powder that heat preservation is stood Briquetting press is poured by artificial weighing, press the column of embryo forming manually to be taken out, then enter punching press through manually installed again Extruded monofilament in extruder will appear the case where idiosome is broken during the installation process, finally again be sintered the monofilament of extrusion Stretching obtains PTFE long fibre product.In conclusion whole process manual operation has run through entire process flow, in the process inevitably The case where will appear idiosome fracture and filament breakage, therefore have higher requirement to the operation of worker, need the longer work of worker It is operated as experience, and repeated work, a large amount of repetitive operation consume worker too to worker back and forth among more machines More energy is a kind of waste of manpower, while also resulting in that production efficiency is low, and product quality is difficult to ensure.
Summary of the invention
In view of the deficiency of the prior art, a kind of for producing the extrusion method of PTFE strip, saving is provided Consumption of the pilot process to manpower, reduce intermediate manual operation influences caused by PTFE fiber finished product, realizes PTFE long fibre Continuous production is tieed up, production efficiency is greatly enhanced, and the stability of obtained PTFE long fibre quality is effectively ensured.
In order to solve the above technical problems, the technical solution adopted by the present invention is that, it is a kind of for producing squeezing for PTFE strip Method out, comprising the following steps:
(1), PTFE dispersion resin and lubricant are mixed evenly in proportion；
(2), mixture obtained by step (1) is sealed, and keeps the temperature standing, holding temperature is 40~80 DEG C, time of repose It is 8~24 hours；
(3), the mixture stood by heat preservation being put into ultrasonic activation sieve, the material of agglomeration is broken up in screening, by Material is uniform sequential into automatic weigh hopper, when the mixture in weigh hopper reaches limit weight, controller hair Control signal gives pneumatic dish valve out, and pneumatic dish valve is opened, and the mixture in weigh hopper enters filling barrel by Pneumatic butterfly valve, when When mixture in weigh hopper reaches upper limit weight, controller issues control signal to pneumatic dish valve, and pneumatic dish valve is closed；
(4), when mixture reaches predetermined weight, the automatic filling barrel that conveys suppresses mixture to blank process is pressed into advance At green body, at this point, being conveyed at other filling barrel weigh hoppers automatically, weigh hopper feed is received；
(5), after mixture is pressed into green body, automatic conveying fills the filling barrel of green body to strip process is squeezed out, by base Body is squeezed out with long strips, at this point, the filling barrel of other material feedings be delivered to automatically it is pre- be pressed at blank process, be pressed into blank process in advance Suppress the filling barrel of other material feedings；
(6), after squeezing out green body with long strips, convey at the filling barrel to weigh hopper to have discharged automatically again into Material.
It is above-mentioned for producing the extrusion method of PTFE raw material, in the step (1), by PTFE dispersion resin and aviation coal Oil is mixed according to weight ratio 3.5:1-5:1, is stirred evenly after mixing.
It is above-mentioned for producing the extrusion method of PTFE strip, in the step (2), using hydraulic system precompressed mixture To 1/3 that its volume is initial volume, pressure is 2.0~3.0Mpa, and precompressed speed is 50mm/min or slightly lower.
It is above-mentioned for producing the extrusion method of PTFE strip, in the step (2), holding temperature is 50~60 DEG C, quiet Setting the time is 12~20 hours.
It is above-mentioned for producing the extrusion method of PTFE strip, in the step (5), the extrusions strip process using with The identical forming tube of filling barrel barrel dliameter, forming tube bottom are the mouth mold that centrum angle is 28~35 °, are squeezed out by hydraulic system.
It is above-mentioned for producing the extrusion method of PTFE strip, in the step (6), temperature control when extrusion 60~ 120℃。
The above-mentioned extrusion method for being used to produce PTFE strip, it is 40~60 mesh that ultrasonic activation, which sieves sieve,.
The beneficial effect for the extrusion method that the present invention is used to produce PTFE strip is to realize weighing feeding, is pressed into advance Base squeezes out the automation and serialization of the production procedure of strip, saves consumption of the pilot process to manpower, reduces intermediate manpower behaviour Work is influenced caused by PTFE fiber finished product, realizes PTFE long fibre continuous production, production efficiency is greatly enhanced, has Effect guarantees the stability of obtained PTFE long fibre quality.
Specific embodiment
It elaborates combined with specific embodiments below to the present invention.
It is a kind of for producing the extrusion method of PTFE strip, comprising the following steps:
(1), PTFE dispersion resin and lubricant are mixed evenly in proportion；
(2), mixture obtained by step (1) is sealed, and keeps the temperature standing, holding temperature is 40~80 DEG C, time of repose It is 8~24 hours；
(3), the mixture stood by heat preservation being put into ultrasonic activation sieve, the material of agglomeration is broken up in screening, by Material is uniform sequential into automatic weigh hopper, when the mixture in weigh hopper reaches limit weight, controller hair Control signal gives pneumatic dish valve out, and pneumatic dish valve is opened, and the mixture in weigh hopper enters filling barrel by Pneumatic butterfly valve, when When mixture in weigh hopper reaches upper limit weight, controller issues control signal to pneumatic dish valve, and pneumatic dish valve is closed；
(4), when mixture reaches predetermined weight, the automatic filling barrel that conveys suppresses mixture to blank process is pressed into advance At green body, at this point, being conveyed at other filling barrel weigh hoppers automatically, weigh hopper feed is received；
(5), after mixture is pressed into green body, automatic conveying fills the filling barrel of green body to strip process is squeezed out, by base Body is squeezed out with long strips, at this point, the filling barrel of other material feedings be delivered to automatically it is pre- be pressed at blank process, be pressed into blank process in advance Suppress the filling barrel of other material feedings；
(6), after squeezing out green body with long strips, convey at the filling barrel to weigh hopper to have discharged automatically again into Material.
In the step (1), PTFE dispersion resin is mixed with aviation kerosine according to weight ratio 3.5:1-5:1, is mixed It is stirred evenly after conjunction.Why be added lubricant be because PTFE resin particle between there are biggish frictional force, be difficult to form, So the bonding between particle must be increased, frictional force is same between reducing resin particle by the way that auxiliary agent is added as lubricant When also reduce frictional force between resin and container, to improve the performance of PTFE.
In the step (2), use hydraulic system precompressed mixture to its volume for initial volume 1/3, pressure 2.0 ~3.0Mpa, precompressed speed are 50mm/min or slightly lower, and pressure is 1.0~3.0Mpa when pre-molding.Precompressed molding pressure mistake It is big or too small have a certain impact to green body quality obtained.When embryo material is preforming, in order to transmit pressure uniformly, in favor of The stabilization of size, it is necessary to pressurize slowly, precompressed Shi Buying has additional shear power, and material internal should not have remaining sky after pressurization Gas.
In the step (2), holding temperature is 50~60 DEG C, and time of repose is 12~20 hours.PTFE dispersion resin with Lubricating auxiliary agent aviation kerosine after mixing, in order to make auxiliary agent more fully permeate into the surface of powder particle, it is necessary to will mix Material heat preservation is stood, this process is known as curing.By the curing of grace time, it is ensured that auxiliary agent sufficiently infiltrates material, processing When be conducive to the homogenization of resin.
In the step (5), the extrusion strip process uses forming tube identical with filling barrel barrel dliameter, forming tube bottom The mouth mold for being 28~35 ° for centrum angle, is squeezed out by hydraulic system.Use centrum angle for 28~35 ° of mouth mold, to improve Compression ratio makes the macromolecular orientation Du Genggao of obtained extrusion pin, and the mechanical and physical performance of long filament is more excellent, is subsequent The preparation of PTFE fabric provides preferably basis.
In the step (6), temperature when extrusion is controlled at 60~120 DEG C.Temperature is controlled 60 by temperature control system Within the scope of~120 DEG C.The molding drum surface temperature of bringing-up section can be made more balanced in this way.
It is 40~60 mesh that ultrasonic activation, which sieves sieve, cannot be too large or too small, guarantees the speed of screening.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art The variations, modifications, additions or substitutions made within the essential scope of the present invention of those of ordinary skill, also should belong to the present invention Protection scope.

Claims (7)

1. a kind of for producing the extrusion method of PTFE strip, it is characterised in that: the following steps are included:
(1), PTFE dispersion resin and lubricant are mixed evenly in proportion；
(2), mixture obtained by step (1) is sealed, and keeps the temperature standings, holding temperature is 40~80 DEG C, time of repose for 8~ 24 hours；
(3), ultrasonic activation sieve will be put by the mixture that heat preservation is stood, the material of agglomeration is broken up in screening, by material It is uniform sequential into automatic weigh hopper, when the mixture in weigh hopper reaches limit weight, controller issues control Signal processed gives pneumatic dish valve, and pneumatic dish valve is opened, and the mixture in weigh hopper enters filling barrel by Pneumatic butterfly valve, works as weighing When mixture in hopper reaches upper limit weight, controller issues control signal to pneumatic dish valve, and pneumatic dish valve is closed；
(4), when mixture reaches predetermined weight, mixture is pressed into base to blank process is pressed into advance by the automatic filling barrel that conveys Body receives weigh hopper feed at this point, being conveyed at other filling barrel weigh hoppers automatically；
(5), after mixture is pressed into green body, automatic conveying fills the filling barrel of green body to squeezing out strip process, by green body with Long strips squeeze out, at this point, the filling barrel of other material feedings be delivered to automatically it is pre- be pressed at blank process, be pressed into advance blank process compacting The filling barrel of other material feedings；
(6), it after squeezing out green body with long strips, conveys and is fed again at the filling barrel to weigh hopper to have discharged automatically.
2. according to claim 1 for producing the extrusion method of PTFE raw material, characterized in that, will in the step (1) PTFE dispersion resin is mixed with aviation kerosine according to weight ratio 3.5:1-5:1, is stirred evenly after mixing.
3. according to claim 1 for producing the extrusion method of PTFE raw material, characterized in that in the step (2), adopt With hydraulic system precompressed mixture to 1/3 that its volume is initial volume, pressure is 2.0~3.0Mpa, and precompressed speed is 50mm/ Min or slightly lower.
4. according to claim 1 for producing the extrusion method of PTFE raw material, characterized in that in the step (2), protect Temperature is 50~60 DEG C, and time of repose is 12~20 hours.
5. according to claim 1 for producing the extrusion method of PTFE raw material, characterized in that in the step (5), institute It states and squeezes out strip process using forming tube identical with filling barrel barrel dliameter, forming tube bottom is the mouth that centrum angle is 28~35 ° Mould is squeezed out by hydraulic system.
6. according to claim 1 for producing the extrusion method of PTFE raw material, characterized in that in the step (6), squeeze Temperature when out is controlled at 60~120 DEG C.
7. according to claim 1 for producing the extrusion method of PTFE raw material, characterized in that ultrasonic activation sieves sieve For 40~60 mesh.
CN201910678771.9A 2019-07-25 2019-07-25 It is a kind of for producing the extrusion method of PTFE strip Pending CN110480974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910678771.9A CN110480974A (en) 2019-07-25 2019-07-25 It is a kind of for producing the extrusion method of PTFE strip

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Application Number Priority Date Filing Date Title
CN201910678771.9A CN110480974A (en) 2019-07-25 2019-07-25 It is a kind of for producing the extrusion method of PTFE strip

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115008780A (en) * 2022-06-16 2022-09-06 安徽元琛环保科技股份有限公司 Preparation method of high-adhesiveness PTFE adhesive tape
CN116476358A (en) * 2023-06-25 2023-07-25 山东森荣新材料股份有限公司 PTFE blank strip uniformity detection device and use method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106012062A (en) * 2016-08-02 2016-10-12 苏州耐德新材料科技有限公司 Continuous polytetrafluoroethylene filaments and production method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106012062A (en) * 2016-08-02 2016-10-12 苏州耐德新材料科技有限公司 Continuous polytetrafluoroethylene filaments and production method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115008780A (en) * 2022-06-16 2022-09-06 安徽元琛环保科技股份有限公司 Preparation method of high-adhesiveness PTFE adhesive tape
CN116476358A (en) * 2023-06-25 2023-07-25 山东森荣新材料股份有限公司 PTFE blank strip uniformity detection device and use method
CN116476358B (en) * 2023-06-25 2023-08-15 山东森荣新材料股份有限公司 PTFE blank strip uniformity detection device and use method

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Application publication date: 20191122

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