CN116691038A - Tear-resistant polyphenylene sulfide composite film and preparation method thereof - Google Patents

Tear-resistant polyphenylene sulfide composite film and preparation method thereof Download PDF

Info

Publication number
CN116691038A
CN116691038A CN202310696752.5A CN202310696752A CN116691038A CN 116691038 A CN116691038 A CN 116691038A CN 202310696752 A CN202310696752 A CN 202310696752A CN 116691038 A CN116691038 A CN 116691038A
Authority
CN
China
Prior art keywords
polyphenylene sulfide
layer
woven fabric
composite film
sulfide composite
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
CN202310696752.5A
Other languages
Chinese (zh)
Inventor
王罗新
姚松俊
王佳琪
夏甜甜
殷龙
伍梦云
蔡玉寒
杨诗文
熊思维
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.)
Wuhan Textile University
Original Assignee
Wuhan Textile University
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 Wuhan Textile University filed Critical Wuhan Textile University
Priority to CN202310696752.5A priority Critical patent/CN116691038A/en
Publication of CN116691038A publication Critical patent/CN116691038A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B32B5/265—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72143—Fibres of discontinuous lengths
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a tearing-resistant polyphenylene sulfide composite membrane and a preparation method thereof, wherein the preparation method comprises the following steps: and respectively covering the upper surface and the lower surface of the aramid chopped fiber layer with the polyphenylene sulfide non-woven fabric to form a three-layer composite structure with the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and the aramid chopped fiber as a middle layer, and adopting a hot pressing process to prepare the polyphenylene sulfide composite film. The polyphenylene sulfide non-woven fabric is melted by in-situ heating, the polyphenylene sulfide non-woven fabric melt has good wettability to the surface of the aramid chopped fiber, and the polyphenylene sulfide melt is firmly adhered to the surface of the aramid chopped fiber after hot pressing, so that the tearing resistance of the polyphenylene sulfide composite film is improved. The method has simple process steps, is easy to operate, and has good industrial application prospect.

Description

Tear-resistant polyphenylene sulfide composite film and preparation method thereof
Technical Field
The invention belongs to the technical field of composite films, and particularly relates to a tearing-resistant polyphenylene sulfide composite film and a preparation method thereof.
Background
Polyphenylene sulfide (Polyphenylene sulfide, abbreviated as PPS) is a semi-crystalline polymer with alternating benzene rings and thioether bonds, has excellent heat stability, chemical resistance, flame retardance and the like, and is applied to the fields of transportation, environmental protection, aerospace, national defense and military industry and the like, and is called one of six-large engineering plastics and eight-large aerospace materials. The PPS has the outstanding advantages of high temperature resistance, radiation resistance, corrosion resistance, good mechanical property, electrical property, flame retardance and biocompatibility, various molding methods and wide application, and the product can be subjected to secondary processing. However, it has disadvantages and drawbacks such as high rigidity of the chain structure, resulting in poor mechanical properties, particularly low tear resistance, of the PPS resin, which limits its use to some extent.
The invention patent of Chinese patent publication No. CN108437487A discloses a polyphenylene sulfide composite material with high glass fiber content and a preparation method thereof, wherein polyphenylene sulfide non-woven fabrics and glass fiber cloth are used as raw materials, and the tensile strength and the bending strength of the composite material are further improved when the content of glass fibers is higher than 70% and on the basis of the prior art through alternate stacking and hot press molding. However, the glass fiber reinforced polyphenylene sulfide composite material is difficult to mold, and the tear resistance is not significantly increased due to its unstable structure.
The invention patent of Chinese patent publication No. CN114573984A discloses a liquid silica gel grafted modified toughened polyphenylene sulfide and a preparation method thereof. The method comprises the steps of uniformly dispersing liquid silica gel, polyphenylene sulfide resin, an initiator and an accelerator, carrying out melt reaction by a first double-screw extruder, extruding, cooling, granulating, drying to obtain grafted polyphenylene sulfide resin particles, uniformly dispersing the grafted polyphenylene sulfide resin particles with a coupling agent, an antioxidant and a processing aid, and carrying out extrusion granulation by a second double-screw extruder. The method improves the toughness, the electrical property, the wear resistance and the fatigue resistance of the modified toughened polyphenylene sulfide material, but the tear resistance is still a challenge and the procedure is complex, and the preparation process is not concise due to excessive addition of organic solvents.
Through the above analysis, the problems and defects existing in the prior art are as follows: the preparation and modification of the polyphenylene sulfide can improve the performance to a certain extent, but the too short time of the polyphenylene sulfide in the hot melting process can directly influence the fluidity of the polyphenylene sulfide so as to indirectly influence the deformation of the glass fiber and/or the carbon fiber; the dynamic vulcanization grafting technology in the modification is to introduce a silicon-containing flexible group after the unstable free radical in the polyphenylene sulfide molecular chain is reacted to form a chemical bond, so that the defect that the polyphenylene sulfide is easy to be oxidized and discolored is only solved in a targeted way, and the tear resistance is not improved in a targeted way.
The invention aims to provide a tearing-resistant polyphenylene sulfide composite film, wherein polyphenylene sulfide non-woven fabrics are respectively covered on the upper surface and the lower surface of an aramid chopped fiber layer to form a three-layer composite structure with the polyphenylene sulfide non-woven fabrics as a top layer and a bottom layer and an aramid chopped fiber as a middle layer, and the polyphenylene sulfide composite film is prepared by adopting a hot-pressing process. The polyphenylene sulfide non-woven fabric is melted by in-situ heating, the polyphenylene sulfide non-woven fabric melt has good wettability to the surface of the aramid chopped fiber, and the PPS melt is firmly adhered to the surface of the aramid chopped fiber after hot pressing, so that the tearing resistance of the polyphenylene sulfide composite film is improved. The method has simple process steps, is easy to operate, and has good industrial application prospect.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the tearing-resistant polyphenylene sulfide composite film and the preparation method thereof, wherein the preparation method of the polyphenylene sulfide composite film has the advantages of simple manufacturing process steps, easy operation, great improvement of the tearing resistance of the composite material and good industrial application prospect.
The invention discloses a method for improving the tear resistance of PPS composite paper by utilizing aramid short fibers, which is characterized by comprising the following steps:
(a) Depositing the aramid chopped fibers on the upper surface of the polyphenylene sulfide non-woven fabric to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers;
(b) Covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers with the polyphenylene sulfide non-woven fabric to form a three-layer composite structure with the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and the aramid chopped fibers as a middle layer;
(c) And (c) preparing the polyphenylene sulfide composite film from the three-layer composite structure in the step (b) by adopting a hot pressing process.
Further, in the step (a), the gram weight of the polyphenylene sulfide non-woven fabric is 20-200g/m 2 ；
Further, in the step (b), the deposition method includes, but is not limited to, one of dry papermaking, electrostatic flocking, inclined wire papermaking and suction filtration.
Further, the top layer, the middle layer and the bottom layer of the polyphenylene sulfide composite membrane are prepared from the following components in parts by weight (25-60): (5-20): (25-60);
preferably, the mass fraction ratio of the top layer to the middle layer to the bottom layer of the polyphenylene sulfide composite film is (30-50): 5-15): 30-50;
further, in the step (c), the hot pressing temperature is 100-240 ℃, the hot pressing pressure is 0.1-0.5 MPa, and the hot pressing roller speed is 3-50 m/min;
preferably, the hot pressing temperature is 100-200 ℃; preferably, the hot pressing temperature is 130-240 ℃, more preferably, the hot pressing temperature is 180-200 ℃;
preferably, the hot pressing pressure is 0.2-0.4Mpa; more preferably 0.3-0.4MPa.
Preferably, the hot-pressing roller speed is 5-50m/min; more preferably, the hot press roller speed is 10-30m/min;
on the other hand, the disclosure also provides a tearing-resistant polyphenylene sulfide composite film prepared by the method;
the anti-tearing polyphenylene sulfide composite film has a three-layer composite structure;
the three-layer composite structure takes polyphenylene sulfide non-woven fabrics as a top layer and a bottom layer and aramid short fibers as a middle layer;
the polyphenylene sulfide composite membrane comprises a top layer, a middle layer and a bottom layer in parts by mass (25-60): (5-20): (25-60);
the length of the aramid staple line is less than 15mm, preferably less than 10mm, more preferably less than 8mm;
the tearing index of the tearing-resistant polyphenylene sulfide composite film is at least more than 46 mN.m 2 /g；
Preferably, the polyphenylene sulfide composite film has a tear index of at least 50 mN.m 2 /g；
The tensile strength of the tearing-resistant polyphenylene sulfide composite film is at least greater than 150Mpa; preferably greater than 155Mpa;
the bending strength of the tearing-resistant polyphenylene sulfide composite film is at least more than 240Mpa; preferably greater than 286Mpa;
impact strength of at least 27KJ/m 2 ；
The invention forms a compact polyphenylene sulfide composite film with an intermediate interlayer of aramid staple fibers by tightly adhering the aramid staple fiber structure and the high-temperature fused polyphenylene sulfide non-woven fabric. The polyphenylene sulfide non-woven fabric is melted by in-situ heating, the polyphenylene sulfide non-woven fabric melt has good wettability to the surface of the aramid chopped fiber, and the PPS melt is firmly adhered to the surface of the aramid chopped fiber after hot pressing, so that the tearing resistance of the polyphenylene sulfide composite film is improved.
Drawings
Fig. 1: a structural schematic diagram of the polyphenylene sulfide composite membrane;
fig. 2: a polyphenylene sulfide non-woven fabric surface electron microscope image;
fig. 3: a surface electron microscope image of the polyphenylene sulfide composite film;
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.
In combination with the structure of the polyphenylene sulfide composite film shown in fig. 1, the preparation of the polyphenylene sulfide composite film in this embodiment specifically adopts the following method, which includes the following steps:
(a) Depositing the aramid chopped fibers on the upper surface of the polyphenylene sulfide non-woven fabric to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers;
(b) Covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers with the polyphenylene sulfide non-woven fabric to form a three-layer composite structure with the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and the aramid chopped fibers as a middle layer;
(c) And (c) preparing the polyphenylene sulfide composite film from the three-layer composite structure in the step (b) by adopting a hot pressing process.
As can be seen from fig. 1, the tear-resistant polyphenylene sulfide composite film prepared by the invention has a three-layer composite structure; the three-layer composite structure takes polyphenylene sulfide non-woven fabrics as a top layer and a bottom layer and aramid short fibers as a middle layer.
The parts described in the examples below are parts per unit area, and in particular, we selected a scenario amitraz fiber nonwoven fabric having a gram weight of 50g/m 2 。
Example 1
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 In water at 450rpmStirring at a speed for 6 hours to obtain a dispersing agent for standby, putting 10 parts of aramid short fibers with the fiber length of 6mm into a fiber dissociator, dissociating for 10 minutes at the rotating speed of 5000r/min, adding the dispersing agent, and uniformly stirring to obtain a suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 100 ℃, the hot rolling pressure is 0.2MPa, and the rolling line speed is 3m/min.
Example 2
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
10 parts of aramid short fibers with the fiber length of 6mm are taken and put into a fiber crusher to be crushed into fiber clusters, and then are further separated into single aramid fibers; and (3) conveying the air flow mixed with the single fibers to a web forming machine, simultaneously carrying out vacuum suction, forming an aramid fiber web on a forming net, and finally extruding and compacting to obtain the aramid paper. And (3) covering the upper surface of the polyphenylene sulfide non-woven fabric with the aramid paper to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid short fibers.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 100 ℃, the hot rolling pressure is 0.3MPa, and the rolling line speed is 3m/min.
Example 3
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
10 parts of aramid short fibers with the fiber length of 6mm are cut into thinner short fibers with the length of 1mm and uniformity; and connecting a high-voltage power supply with the upper polar plate and the lower polar plate by utilizing an electrostatic flocking device, placing the cut short fibers at the upper end of the lower polar plate, placing the polyphenylene sulfide non-woven fabric at the lower end of the upper polar plate, and then applying a stepped electric field to carry out electrostatic flocking until the maximum flocking density is finished. And (3) adsorbing the aramid fluff on the upper surface of the polyphenylene sulfide non-woven fabric by utilizing the action of electrostatic attraction force to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid staple fibers.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.3MPa, and the rolling line speed is 3m/min.
Example 4
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring 10 parts of aramid short fibers with the fiber length of 6mm in water at the rotation speed of 5000r/min for 10min, adding the dispersion liquid, and uniformly stirring to obtain suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.4MPa, and the rolling line speed is 3m/min.
Example 5
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring 10 parts of aramid short fibers with the fiber length of 6mm in water at the rotation speed of 5000r/min for 10min, adding the dispersion liquid, and uniformly stirring to obtain suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 240 ℃, the hot rolling pressure is 0.3MPa, and the rolling line speed is 3m/min.
Example 6
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
Dispersing 10 parts of aramid chopped fibers with the length of 6mm in water to prepare aramid chopped fiber slurry with the mass concentration of 0.5%, feeding the slurry into a pulp feeding head, transversely distributing and homogenizing pulp flow through a central pulp distributor, feeding the pulp with uniform speed and dispersed fibers into a inclined wire pulp feeding box, uniformly distributing the pulp onto two layers of forming wires, overflowing excessive pulp into a white water pond, and filtering out water from the pulp by virtue of the action of a dehydration pressure difference when the pulp runs along the forming wires to form wet paper sheets; and (3) covering the wet paper sheet on the upper surface of the polyphenylene sulfide non-woven fabric to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid short fibers.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure taking the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and taking the aramid chopped fibers as a middle layer, wherein the hot rolling temperature of a roll squeezer is 240 ℃, the hot rolling pressure is 0.5MPa, and the rolling line speed is 3m/min.
Comparative example 1
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring 10 parts of aramid short fibers with the fiber length of 6mm in water at the rotation speed of 5000r/min for 10min, adding the dispersion liquid, and uniformly stirring to obtain suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure taking the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and taking the aramid chopped fibers as a middle layer, wherein the hot rolling temperature of a roll squeezer is 90 ℃, the hot rolling pressure is 0.2MPa, and the rolling line speed is 1m/min.
Comparative example 2
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring 3 parts of aramid short fibers with the fiber length of 6mm in water at the rotation speed of 5000r/min for 10min, adding the dispersion liquid, and uniformly stirring to obtain suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure taking the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and taking the aramid chopped fibers as a middle layer, wherein the hot rolling temperature of a roll squeezer is 90 ℃, the hot rolling pressure is 0.1MPa, and the rolling line speed is 1m/min.
Comparative example 3
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring the mixture in water at 450rpm for 6 hours to obtain a dispersing agent for standby, wherein the gram weight is 40g/m 2 10 parts of aramid short fibers with the fiber length of 6mm are placed in a fiber dissociator to be dissociated for 10min at the rotating speed of 5000r/min, and then the dispersion liquid is added and stirred uniformly to obtain suspension liquid; and carrying out vacuum suction filtration on the suspension liquid to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, carrying out hot rolling treatment on the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, wherein the hot rolling temperature of a roll squeezer is 150 ℃, the hot rolling pressure is 0.3MPa, and the rolling line speed is 3m/min.
Comparative example 4
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring in water for 6 hours at a rotating speed of 450rpm to obtain a dispersing agent for standby, putting 10 parts of aramid short fibers and 50 parts of polyphenylene sulfide non-woven fabrics into a fiber dissociator, dissociating for 10 minutes at a rotating speed of 5000r/min, adding the dispersing agent, and uniformly stirring to obtain a suspension; and (3) placing the mixed suspension in a paper sheet former for papermaking and forming, dehydrating to obtain a wet composite fiber net, and then placing the wet composite fiber net in a blast drying oven for drying for 4 hours at 110 ℃ to obtain the composite polyphenylene sulfide fiber base paper.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, carrying out hot rolling treatment on the composite polyphenylene sulfide fiber base paper prepared in the step a, wherein the hot rolling temperature of a roll squeezer is 150 ℃, the hot rolling pressure is 0.3MPa, and the rolling line speed is 3m/min.
The materials obtained in examples 1 to 5 were tested and the results were as follows:
the materials obtained in comparative examples 1 to 4 were tested and the results were as follows:
test item Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4
Tensile Strength (Mpa) 49.6 30.8 32.5 51.7
Flexural Strength (Mpa) 124.2 86.5 98.8 135.4
Impact Strength (KJ/m) 2 ) 15.6 11.1 13.6 13.4
Tear index (mN.m) 2 /g) 18.6 12.8 21.4 20.5
In the three-layer structures of the sheets obtained in examples 1 to 6 and comparative examples 1 to 4 described above, the three-layer composite structure uses polyphenylene sulfide nonwoven fabrics as the top and bottom layers and uses aramid staple fibers as the middle layer; the polyphenylene sulfide composite membrane comprises a top layer, a middle layer and a bottom layer in a mass ratio of 45:10:45, gram weight relationship of comparative example 4
As can be seen from the table, the hot rolling temperature and the interlayer structure of the polyphenylene sulfide film prepared by the method can influence the performance test of the composite film through the test.
Example 7
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring in water for 6h at a rotating speed of 450rpm to obtain a dispersing agent for standby, putting 12 parts of aramid short fibers with a fiber length of 6mm into a fiber dissociator, dissociating for 10min at a rotating speed of 5000r/min, adding the dispersing agent, and uniformly stirring to obtain a suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.4MPa, and the rolling line speed is 3m/min.
45 parts of the polyphenylene sulfide non-woven fabric top layer and the bottom layer.
Example 8
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
Adding 2.4 parts of polyethylene oxide and 0.4 part of polyacrylamideTo 1.6X10 3 Stirring in water for 6 hours at a rotating speed of 450rpm to obtain a dispersing agent for standby, putting 14 parts of aramid short fibers with a fiber length of 6mm into a fiber dissociator, dissociating for 10 minutes at a rotating speed of 5000r/min, adding the dispersing agent, and uniformly stirring to obtain a suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.4MPa, and the rolling line speed is 3m/min.
44 parts of the polyphenylene sulfide non-woven fabric top layer and the bottom layer.
Example 9
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring in water for 6 hours at a rotating speed of 450rpm to obtain a dispersing agent for standby, putting 16 parts of aramid short fibers with a fiber length of 6mm into a fiber dissociator, dissociating for 10 minutes at a rotating speed of 5000r/min, adding the dispersing agent, and uniformly stirring to obtain a suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.4MPa, and the rolling line speed is 3m/min.
The polyphenylene sulfide non-woven fabric comprises 42 parts of a top layer and a bottom layer.
Example 10
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring in water for 6h at a rotating speed of 450rpm to obtain a dispersing agent for standby, putting 18 parts of aramid short fibers with a fiber length of 6mm into a fiber dissociator, dissociating for 10min at a rotating speed of 5000r/min, adding the dispersing agent, and uniformly stirring to obtain a suspension; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.4MPa, and the rolling line speed is 3m/min.
The polyphenylene sulfide non-woven fabric comprises 41 parts of a top layer and a bottom layer.
Example 11
The preparation method of the tear-resistant polyphenylene sulfide composite film comprises the following steps:
a. deposition treatment of aramid staple fibers
2.4 parts of polyethylene oxide and 0.4 part of polyacrylamide are added to 1.6X10 3 Stirring in water at 450rpm for 6 hr to obtain dispersant, and placing 20 parts of short aramid fiber with fiber length of 6mm in a fiber dissociatorDissociating for 10min at the rotating speed of 5000r/min, adding the dispersion liquid, and uniformly stirring to obtain a suspension liquid; the suspension is naturally settled to the upper surface of the polyphenylene sulfide non-woven fabric through a screen with the aperture of 80 meshes and the aperture of 20 mm, and the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers is obtained.
b. Preparation of tear-resistant polyphenylene sulfide composite membrane
And c, covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers, which is prepared in the step a, with the polyphenylene sulfide non-woven fabric, and performing hot rolling treatment to obtain the polyphenylene sulfide composite film with a three-layer composite structure, wherein the polyphenylene sulfide non-woven fabric is used as a top layer and a bottom layer, and the aramid chopped fibers are used as a middle layer. Wherein the hot rolling temperature of the roll squeezer is 200 ℃, the hot rolling pressure is 0.4MPa, and the rolling line speed is 3m/min.
The polyphenylene sulfide non-woven fabric comprises 40 parts of a top layer and a bottom layer.
As can be seen from the table, the relative contents of the aramid staple fibers and the polyphenylene sulfide of the tear-resistant polyphenylene sulfide composite film prepared by the method can influence the performance of the composite film through testing.
In the invention, an electron microscope image test is carried out on the prepared composite film, and in fig. 2, the polyphenylene sulfide non-woven fabric is observed to be in a disordered state; the composite membrane prepared by the method provided by the invention has the advantages that the polyphenylene sulfide non-woven fabric serving as the outer layer basically loses the fiber state, so that a compact membrane structure is formed, but a raised fiber state structure still exists on the membrane structure, the raised fiber state structure is an aramid fiber, the heat resistance of the aramid fiber is far higher than that of the polyphenylene sulfide, the toughness and the strength of the aramid fiber can be achieved in the composite membrane, and the tearing resistance of the composite membrane is greatly improved.
The above examples are only preferred embodiments of the present invention and it should be noted that several changes, modifications and adaptations to those skilled in the art may be made without departing from the concept of the present invention and these shall also be considered as the scope of the present invention.

Claims (10)

1. The preparation method of the tearing-resistant polyphenylene sulfide composite membrane is characterized by comprising the following steps of:
(a) Depositing the aramid chopped fibers on the upper surface of the polyphenylene sulfide non-woven fabric to obtain the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers;
(b) Covering the upper surface of the polyphenylene sulfide non-woven fabric loaded with the aramid chopped fibers with the polyphenylene sulfide non-woven fabric to form a three-layer composite structure with the polyphenylene sulfide non-woven fabric as a top layer and a bottom layer and the aramid chopped fibers as a middle layer;
(c) And (c) preparing the polyphenylene sulfide composite film from the three-layer composite structure in the step (b) by adopting a hot pressing process.
Wherein in the step (a), the gram weight of the polyphenylene sulfide non-woven fabric is 20-200g/m 2 。
2. The method for preparing the tear-resistant polyphenylene sulfide composite membrane according to claim 1, wherein,
in the step (b), the deposition method comprises one of dry papermaking, electrostatic flocking, inclined wire papermaking and suction filtration.
3. The method for preparing the tear-resistant polyphenylene sulfide composite membrane according to claim 1, wherein,
the polyphenylene sulfide composite film comprises a top layer, a middle layer and a bottom layer in parts by mass (25-60): (5-20): (25-60);
preferably, the mass fraction ratio of the top layer to the middle layer to the bottom layer of the polyphenylene sulfide composite film is (30-50), and the mass fraction ratio of the top layer to the middle layer to the bottom layer of the polyphenylene sulfide composite film is (5-15), and the mass fraction ratio of the top layer to the middle layer to the bottom layer of the polyphenylene sulfide composite film is (30-50).
4. The method for preparing the tear-resistant polyphenylene sulfide composite membrane according to claim 1, wherein,
in the step (c), the hot pressing temperature is 100-240 ℃, the hot pressing pressure is 0.1-0.5 MPa, and the hot pressing roller speed is 3-50 m/min.
5. The method for preparing a tear-resistant polyphenylene sulfide composite film according to claim 4, wherein,
the hot pressing temperature is 100-200 ℃; preferably, the hot pressing temperature is 130-240 ℃, more preferably, the hot pressing temperature is 180-200 ℃;
the hot-pressing pressure is 0.2-0.4Mpa; preferably 0.3-0.4MPa.
The hot-pressing roller speed is 5-50m/min; preferably, the hot-pressing roller speed is 10-30m/min.
6. The method for preparing the tear-resistant polyphenylene sulfide composite membrane according to claim 1, wherein,
the length of the aramid staple is less than 15mm, preferably less than 10mm, more preferably less than 8mm.
7. A tear resistant polyphenylene sulfide composite membrane prepared by the method of any one of claims 1-6.
8. The polyphenylene sulfide composite film of claim 7, wherein the film comprises a polymer,
the anti-tearing polyphenylene sulfide composite film has a three-layer composite structure;
the three-layer composite structure takes polyphenylene sulfide non-woven fabrics as a top layer and a bottom layer and aramid short fibers as a middle layer;
the polyphenylene sulfide composite membrane comprises a top layer, a middle layer and a bottom layer in parts by mass (25-60): (5-20): (25-60).
9. The polyphenylene sulfide composite film of claim 8, wherein the film comprises a polymer,
the said processThe tear index of the tear-resistant polyphenylene sulfide composite film is at least greater than 46 mN.m 2 /g；
Preferably, the polyphenylene sulfide composite film has a tear index of at least 50 mN.m 2 /g。
10. The polyphenylene sulfide composite film of claim 8, wherein the film comprises a polymer,
the tensile strength of the tearing-resistant polyphenylene sulfide composite film is at least greater than 150Mpa; preferably greater than 155Mpa;
the bending strength of the tearing-resistant polyphenylene sulfide composite film is at least more than 240Mpa; preferably greater than 286Mpa;
impact strength of at least 27KJ/m 2 。
CN202310696752.5A 2023-06-13 2023-06-13 Tear-resistant polyphenylene sulfide composite film and preparation method thereof Pending CN116691038A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310696752.5A CN116691038A (en) 2023-06-13 2023-06-13 Tear-resistant polyphenylene sulfide composite film and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310696752.5A CN116691038A (en) 2023-06-13 2023-06-13 Tear-resistant polyphenylene sulfide composite film and preparation method thereof

Publications (1)

Publication Number Publication Date
CN116691038A true CN116691038A (en) 2023-09-05

Family

ID=87835362

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310696752.5A Pending CN116691038A (en) 2023-06-13 2023-06-13 Tear-resistant polyphenylene sulfide composite film and preparation method thereof

Country Status (1)

Country Link
CN (1) CN116691038A (en)

Similar Documents

Publication Publication Date Title
EP0341977B1 (en) Composites from wet formed blends of glass and thermoplastic fibers
US5409573A (en) Composites from wet formed blends of glass and thermoplastic fibers
JP3027225B2 (en) Manufacturing method of prepreg
KR20050121245A (en) Non-woven fibre mat, method for production thereof and fibre composite material
CN1834342A (en) Meta aramid fibre paper and prepn. process
JPH04241193A (en) Wet laid web of thermally bondable fiber and method for its production
KR20010052096A (en) Reinforced thermoplastic composite systems
CN1974925A (en) Synthetic fiber paper containing polyphenyl sulfide and aromid fiber and producing method thereof
KR20120130749A (en) Fiber-reinforced thermoplastic resin composition, reinforcing fiber bundle, and process for production of fiber-reinforced thermoplastic resin composition
JP3152748U (en) Carbon nonwoven fabric
CN1018347B (en) Chemical fibre sheet, and its producing method and qpparatus
CN111549451B (en) Carbon fiber/thermoplastic fiber mixed felt, preparation method thereof and carbon fiber reinforced thermoplastic resin matrix composite material
CH658462A5 (en) PROCEDURE FOR PREPARING THERMOPLASTIC POLYMER MANUFACTURES REINFORCED WITH GLASS FIBERS AND MANUFACTURES OBTAINED BY THE PROCEDURE.
JPH01245029A (en) Reinforced thermoplastic sheet and production thereof
US5470409A (en) Process for making fluoropolymer composites
FI84843B (en) FOERFARANDE FOER FRAMSTAELLNING AV FIBERFOERSTAERKT RAOMATERIAL FOER PLAST.
CN116691038A (en) Tear-resistant polyphenylene sulfide composite film and preparation method thereof
JPH09220709A (en) Regenerated paper board
JPH01299828A (en) Sheetlike material
CN1040187C (en) Improvements in fibre reinforced plastics articles
AU711527B2 (en) Thermoplastic moldable composite sheet containing hollow microspheres
JP3624452B2 (en) Waste paper board
EP0621882B1 (en) Process for making fluoropolymer composites
CN113426310B (en) Non-woven fabric base material for high-stiffness tubular membrane and preparation method thereof
JP2013119684A (en) Opened carbon fiber bundle and method for producing the same

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