CN115519873A - Antistatic composite material and preparation method thereof - Google Patents

Antistatic composite material and preparation method thereof Download PDF

Info

Publication number
CN115519873A
CN115519873A CN202211227487.8A CN202211227487A CN115519873A CN 115519873 A CN115519873 A CN 115519873A CN 202211227487 A CN202211227487 A CN 202211227487A CN 115519873 A CN115519873 A CN 115519873A
Authority
CN
China
Prior art keywords
composite film
preset
thickness
composite
difference
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
CN202211227487.8A
Other languages
Chinese (zh)
Inventor
何松挺
计峰
罗晨
李晓波
霍亚芳
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.)
Zhejiang Goldstone Packing Co ltd
Original Assignee
Zhejiang Goldstone Packing 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 Zhejiang Goldstone Packing Co ltd filed Critical Zhejiang Goldstone Packing Co ltd
Priority to CN202211227487.8A priority Critical patent/CN115519873A/en
Publication of CN115519873A publication Critical patent/CN115519873A/en
Pending legal-status Critical Current

Links

Images

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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • 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
    • B32B5/02—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 structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static

Landscapes

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

Abstract

The invention relates to an antistatic composite material and a preparation method thereof, in particular to the technical field of packaging materials. The method comprises the following steps: printing one side of the PET layer in a gravure printing machine; gluing the other side of the PET layer by a gluing press roller of the dry compound machine; compounding the PET layer and AL in the dry compounding machine to form a first composite film; compounding the first composite film and BOPA in a dry compounding machine to form a second composite film; carrying out film blowing treatment on the black PE, and compounding the black PE and the second composite film in a dry compounding machine to form a third composite film; compounding the non-woven fabric and the third composite film into a fourth composite film in a dry compounding machine; curing the fourth composite film in a curing chamber; when the curing is finished, the antistatic composite material is obtained; the invention effectively improves the antistatic property and the flexibility of the packaging material.

Description

Antistatic composite material and preparation method thereof
Technical Field
The invention relates to the technical field of packaging materials, in particular to an antistatic composite material and a preparation method thereof.
Background
Modern weaponry has various high-precision electronic devices, and integrates an electromagnetic control system, a guidance system, a monitoring control system, initiating explosive devices, an electric explosion device, fuses and the like. At present, with the development of material technology, particularly polymer composite material technology, various engineering plastics and resin-based composite materials are widely applied to military product packaging, and the materials have the advantages of light weight, high specific strength, corrosion resistance, aging resistance and the like, but in the processes of product transportation, storage and use, a large amount of static electricity can be accumulated on the surface of the material due to friction, impact, contact, separation and the like, the static electricity can cause the failure or misoperation of a weapon control system and the combustion and explosion of initiating explosive devices, and the safety performance of weapon equipment is seriously influenced. In order to avoid accumulation of a large amount of static charges, the anti-static requirements are fully considered when the development and research of a packaging system are carried out, and effective anti-static measures are taken from the aspects of structures and materials. The structure can adopt a mode of leading out a metal lead at a place where static accumulation is easy to generate in a product, and the lead-out lead is reliably grounded; in the aspect of materials, the polymer composite material can be subjected to antistatic modification, an antistatic agent can be added into the material during modification to enable the material to have an antistatic function, conductive substances such as conductive carbon black, conductive fibers, metal powder and the like can be filled into the polymer material according to a certain proportion, conductive substances such as metal, metal oxide, conductive carbon and composite filler can be prepared into conductive coating, and the conductive coating is coated on the surface of the polymer material to form a cured static dissipative layer.
Chinese patent publication no: CN108623879A discloses an antistatic packaging material for microelectronic products and a preparation method thereof, the raw materials of the packaging material include: polyethylene, polyvinyl chloride, polycarbonate, composite conductive filler, inorganic filler, titanium oxide, epoxidized soybean oil, a stabilizer, an antistatic agent and polyacrylamide. The preparation method comprises the steps of firstly, adopting a silane coupling agent to modify conductive graphite and carbon nano tubes, and then adding polyethylene, polyvinyl chloride and polycarbonate into an internal mixer for internal mixing; then adding composite conductive filler, inorganic filler, titanium oxide, epoxidized soybean oil, stabilizer, antistatic agent and polyacrylamide for continuous banburying to obtain a mixture; and finally, guiding out the mixture, and then sending the mixture into a double-screw extruder for extrusion and granulation to obtain the pellet. According to the invention, conductive graphite and carbon nano tubes are compounded as conductive fillers, and the surfaces of the conductive fillers are modified by adopting a silane coupling agent, so that the obtained material has excellent mechanical property and conductivity; therefore, the antistatic packaging material for the microelectronic product and the preparation method thereof have the following problems:
1. the compounding property of the prepared composite film is not reflected.
2. The prepared composite membrane has poor flexibility.
Disclosure of Invention
Therefore, the invention provides an antistatic composite material and a preparation method thereof, which are used for solving the problems of poor flexibility and low antistatic performance of a packaging material prepared in the prior art.
In order to achieve the above object, the present invention provides a method for preparing an antistatic composite material, comprising:
step S1, printing one side of a PET layer in a gravure printing machine;
s2, gluing the other side of the PET layer by a gluing compression roller of the dry-type compound machine, and starting an infrared thermal imager by a controller to detect whether the gluing uniformity of the gluing compression roller reaches the standard;
s3, when the gluing uniformity is determined to be not up to the standard, adjusting the speed of an initial roller, when the gluing uniformity is determined to be up to the standard, compounding the PET layer and the AL into a first composite film in the dry compounding machine, starting a first industrial camera by the controller to shoot the first composite film, and analyzing and determining whether the first composite film is qualified or not according to shot images;
s4, when the first composite film is determined to be unqualified in compounding, determining a corresponding adjusting mode according to a difference value between an opening width and a preset opening width, and when the first composite film is determined to be qualified in compounding, analyzing and determining whether the thickness of the first composite film is qualified or not by a controller according to a shot image of the first industrial camera;
s5, when the thickness of the first composite film is determined to be unqualified, determining to compensate the roller pressure of the dry-type compound machine according to a comparison result of the thickness difference and a preset thickness difference, when the thickness of the first composite film is determined to be qualified, detecting the area of a convex part of the first composite film by a second industrial camera, calculating the difference value of the convex area and the preset convex area, and selecting a corresponding base material tension adjusting coefficient according to the comparison result of the convex area difference and the preset convex area difference to adjust the base material tension value;
s6, compounding the first composite film and BOPA into a second composite film in a dry compounding machine;
s7, carrying out film blowing treatment on the black PE, and compounding the black PE and the second composite film into a third composite film in a dry compounding machine;
s8, compounding the non-woven fabric and the third composite film into a fourth composite film in a dry compounding machine;
and S9, curing the fourth composite film in a curing chamber to obtain the antistatic composite material.
Further, in the step S2, when the infrared thermal imager detects the gluing uniformity of the PET layer, an infrared image is obtained, the infrared image is divided into a plurality of regions, a region area Q in which the gray value of a single region in the infrared image exceeds a preset gray range G0 is determined, the region area Q is compared with a preset region area Q1, and whether the gluing uniformity of the gluing roller reaches the standard is determined according to the comparison result,
if Q is less than Q1, the controller judges that the gluing uniformity of the gluing pressing roller does not reach the standard;
and if Q is larger than or equal to Q1, the controller judges that the gluing uniformity of the gluing press roller reaches the standard.
Further, in the step S3, when it is determined that the gluing uniformity is not met, a region area difference Δ Q between a region area Q and a preset region area Q1, where the gray value of a single region in the infrared image exceeds a preset gray range G0, is calculated, Δ Q = Q1-Q, and the initial roller speed is adjusted according to the region area difference and the preset region area difference,
wherein the controller is provided with a first preset reflection area difference value delta Q1, a second preset reflection area difference value delta Q2, a first roller speed adjusting coefficient k1, a second roller speed adjusting coefficient k2 and a third roller speed adjusting coefficient k3, wherein the delta Q1 is less than the delta Q2,1 is more than k1 and more than k2 and more than k3 and less than 1.2,
if the delta Q is not more than the delta Q1, the controller judges that the first roller speed adjusting coefficient k1 is selected to adjust the initial roller speed;
if the delta Q1 is less than the delta Q and is not more than the delta Q2, the controller judges and selects a second roller speed adjusting coefficient k2 to adjust the initial roller speed;
if delta Q is > -delta Q2, the controller judges that the third roller speed adjusting coefficient k3 is selected to adjust the initial roller speed;
and when the controller judges that the roller speed adjusting coefficient is selected to be ki, setting i =1,2,3, and setting the adjusted roller speed to be V1, and setting V1= V0 xki, wherein V0 is the initial roller speed of the dry compound machine, and ki is the initial roller speed adjusting coefficient.
Further, in the step S3, when the first industrial camera finishes capturing the image of the first composite film, the controller determines the opening width D of the first composite film according to the image, compares the opening width D with a preset opening width D1, determines whether the composite of the first composite film is qualified according to the comparison result,
if D is less than or equal to D1, the controller judges that the first composite film is qualified in compounding;
and if D is larger than D1, the controller judges that the first composite film is unqualified in compounding.
Further, in the step S4, when it is determined that the first composite film machine is not qualified for lamination, calculating an opening width difference Δ D between the opening width D of the first composite film and a preset opening width D1, setting Δ D = D1-D, and determining a corresponding adjustment mode according to a comparison result of the opening width difference and the preset opening width difference,
wherein, the controller is provided with a first preset opening width difference Delta D1, the first adjusting mode is to adjust the roller pressure of the dry compound machine, the second adjusting mode is to adjust the tension of the base material, delta D1 is less than Delta D2,
if the delta D is less than or equal to the delta D1, the controller judges that the adjusting mode is a first adjusting mode;
if DeltaD > DeltaD1, the controller determines that the adjusting mode is a second adjusting mode.
Further, when the controller determines that the adjustment mode is the first adjustment mode, calculating a first ratio W of the opening width difference Δ D to a first preset opening width difference Δ D1, setting W =Δd1/Δ D, and determining to adjust the roller pressure of the dry compound machine according to a comparison result of the ratio and a preset ratio,
wherein the controller is provided with a first preset difference value W1, a second preset difference value W2, a first roller pressure adjusting coefficient x1, a second roller pressure adjusting coefficient x2 and a third roller pressure adjusting coefficient x3, W1 is more than W2, x1 is more than 1 and more than x2 is more than x3 and less than 1.5,
if W is less than or equal to W1, the controller judges that the first roller pressure adjusting coefficient x1 is selected to adjust the roller pressure of the dry compound machine;
if W1 is larger than W and is not larger than W2, the controller judges that the second roller pressure adjusting coefficient x2 is selected to adjust the roller pressure of the dry compound machine;
if W is larger than W2, the controller judges that the third roller pressure adjusting coefficient x3 is selected to adjust the roller pressure of the dry-type compound machine;
when the controller judges that the selected roller pressure adjusting coefficient is xi, setting i =1,2,3, and setting the adjusted roller pressure as P, wherein P = P0 x xi, P0 is the initial roller pressure of the dry compound machine, and xi is the roller pressure adjusting coefficient;
when the controller judges that the adjusting mode is the second adjusting mode, the tension of the base material is determined to be adjusted according to the comparison result of the first ratio and the preset ratio,
wherein the controller is provided with a first tension adjusting coefficient g1, a second tension adjusting coefficient g2 and a third tension adjusting coefficient g3, g1 is more than 1 and more than g2 and more than g3 and less than 1.2,
if W is less than or equal to W1, the controller judges that the first tension adjusting coefficient g1 is selected to adjust the tension of the base material;
if W1 is larger than W and smaller than or equal to W2, the controller judges that the second tension adjusting coefficient g2 is selected to adjust the tension of the base material;
if W is larger than W2, the controller judges that the third tension adjusting coefficient g3 is selected to adjust the tension of the base material;
when the controller judges that the selected base material tension adjusting coefficient is gi, setting i =1,2,3, and setting the adjusted tension value as N1, N1= N0 Xgi, wherein N0 is the initial tension value of the base material, and gi is the base material tension adjusting coefficient.
Further, in the step S4, when it is determined that the first composite film is qualified to be composited, the controller obtains a thickness H of the first composite film, compares the thickness H of the first composite film with a preset thickness H1, determines whether the thickness of the first composite film is qualified according to a comparison result,
if H is less than or equal to H1, the controller judges that the thickness of the first composite film is qualified;
and if H is larger than H1, the controller judges that the thickness of the first composite film is unqualified.
Further, in the step S5, when it is determined that the thickness of the first composite film is not qualified, the controller calculates a thickness difference Δ H between the thickness H of the first composite film and a preset thickness H1, sets Δ H = H1-H, and determines a roll pressure compensation value of the dry lamination machine according to a comparison result between the thickness difference and the preset thickness difference,
wherein the controller is provided with a first preset thickness difference value delta H1, a second preset thickness difference value delta H2, a first pressure compensation value P1, a second pressure compensation value P2 and a third pressure compensation value P3, the delta H1 is less than the delta H2, the P1 is more than the P2 and is more than the P3,
if the delta H is not more than the delta H1, the controller judges that the pressure compensation value of the first composite membrane is P3;
if the pressure of the first composite membrane is less than the pressure of the second composite membrane, the controller judges that the pressure compensation value of the first composite membrane is P2;
if Δ H > [ Δ H2 ], the controller determines that the pressure compensation value for the first composite membrane is P1.
Further, in the step S5, when the second industrial camera photographs the area of the protruding portion of the first composite film, the controller calculates a protruding area difference Δ E between the area E of the protruding portion and a preset protruding area E1, sets Δ E = E1-E, and selects a corresponding substrate tension correction coefficient according to a comparison result between the protruding area difference and the preset protruding area difference,
wherein the controller is provided with a first preset bulge area difference delta E1, a second preset bulge area difference delta E2, a first tension correction coefficient z1, a second tension correction coefficient z2 and a third tension correction coefficient z3, the delta E1 is less than the delta E2, the z1 is more than 1 and more than z2 and more than z3 and less than 1.5,
if the delta E is not more than the delta E1, the controller judges that the third tension correction coefficient z3 is selected to correct the tension value of the base material;
if the delta E1 is less than the delta E and is not more than the delta E2, the controller judges that the second tension correction coefficient z2 is selected to correct the tension value of the base material;
if delta E is larger than delta E2, the controller judges that the first tension correction coefficient z1 is selected to correct the substrate tension value.
An antistatic composite material comprises a composite material arranged from inside to outside
A PET layer which is a biaxially oriented polyester film, one side of which is used for printing;
an AL barrier layer which is an aluminum foil and is used for blocking oxygen and water vapor;
the BOPA reinforced layer is made of polyamide and is used for increasing the strength of the composite film;
the PE heat sealing layer is made of polyethylene and is used for performing heat sealing and antistatic effects;
the non-woven fabric layer is used for playing a role of moisture prevention;
the thickness of the PET layer is 12-25um, the thickness of the AL blocking layer is 7-30um, the thickness of the BOPA reinforcing layer is 15-30um, and the thickness of the PE heat sealing layer is 30-150um;
the PE heat-sealing layer is black with a light-shielding function, and the resistance value is 10 6-9 Ω/m 2 。
Compared with the prior art, the method has the beneficial effects that the infrared thermal imager is used for detecting the uniformity of the gluing, whether the gluing uniformity reaches the standard or not is detected according to the comparison between the area of the area, exceeding the preset gray scale range, of the gray value of a single area in the infrared image and the area of the preset area, and the speed of a roller of the dry compounding machine is adjusted when the gluing uniformity does not reach the standard, so that the gluing amount of the composite film is increased, and the compounding property of the composite film is further improved;
particularly, the side face of the composite film is shot by the first industrial camera, the compounding degree of the composite film is determined according to the opening width of the composite film in the image, and then the roller pressure, the roller position and the base material tension of the compounding machine are adjusted, so that the adhesion quantity of the composite film is improved, and the compounding performance of the composite film is further improved;
particularly, when the first industrial camera shoots the side face of the composite film, the thickness of the composite film is analyzed, whether the thickness of the composite film meets the standard of the preset thickness or not is determined, and the pressure compensation value of the dry compound machine is determined according to the comparison result of the thickness difference and the preset thickness difference to compensate the pressure of the composite film, so that the composite of the composite film is tighter, and the composite property of the composite film is further improved.
Furthermore, when the front side of the composite film is subjected to image shooting through the second industrial camera, the corresponding substrate tension correction coefficient is selected according to the comparison result of the protrusion area difference value and the preset protrusion area difference value in the shot image to correct the initial substrate tension value, so that the substrate surface is smoother, the gluing uniformity is improved, and the composite property of the composite film is further improved.
Furthermore, the composite membrane adopts green non-woven fabrics, is a new generation of environment-friendly material, has the advantages of moisture resistance, air permeability, light weight, no toxicity and no stimulation, and has stable performance, and the non-woven fabrics and the third composite membrane are compounded into the fourth composite membrane in a dry compounding machine, so that the flexibility of the composite membrane is further improved;
particularly, the composite material adopts black PE which is nontoxic and tasteless, has low processing cost and good thermal conductivity, and is compounded with the second composite film in a dry compounding machine into a third composite film after the black PE is subjected to film blowing treatment, so that the compounding property of the composite film is further improved;
in particular, the composite film adopts the AL as the reinforcing layer, has the function of blocking oxygen and water vapor, and combines the PET layer and the AL into the first composite film in a dry-type compound machine, thereby further improving the moisture resistance of the composite film.
Drawings
FIG. 1 is a flow chart of a method for preparing an antistatic composite material according to the present invention;
FIG. 2 is a diagram of an antistatic composite according to the invention;
fig. 3 is a schematic structural view of a dry compound machine of the antistatic composite material according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, fig. 1 is a flow chart illustrating a method for preparing an antistatic composite material according to the present invention;
FIG. 2 is a diagram of an antistatic composite according to the invention.
The invention relates to a preparation method of an antistatic composite material, which comprises the following steps:
s1, printing one side of a PET layer in a gravure printing machine;
s2, gluing the other side of the PET layer by a gluing compression roller of the dry-type compound machine, and starting an infrared thermal imager by a controller to detect whether the gluing uniformity of the gluing compression roller reaches the standard;
s3, when the gluing uniformity is determined to be not up to the standard, adjusting the speed of an initial roller, when the gluing uniformity is determined to be up to the standard, compounding the PET layer and the AL into a first composite film in the dry compounding machine, starting a first industrial camera by the controller to shoot the first composite film, and analyzing and determining whether the first composite film is qualified or not according to shot images;
s4, when the first composite film is determined to be unqualified in compounding, determining a corresponding adjusting mode according to a difference value between the opening width and a preset opening width, and when the first composite film is determined to be qualified in compounding, analyzing and determining whether the thickness of the first composite film is qualified or not by a controller according to a shot image of a first industrial camera;
s5, when the thickness of the first composite film is determined to be unqualified, determining to compensate the roller pressure of the dry-type compound machine according to a comparison result of a thickness difference value and a preset thickness difference value, when the thickness of the first composite film is determined to be qualified, detecting the area of a convex part of the first composite film by a second industrial camera, calculating a difference value between the convex area and a preset convex area, and selecting a corresponding substrate tension adjusting coefficient according to a comparison result of the convex area difference value and the preset convex area difference value to adjust the substrate tension value;
s6, compounding the first composite film and BOPA into a second composite film in a dry compounding machine;
s7, performing film blowing treatment on the black PE, and compounding the black PE and a second composite film in a dry compounding machine to form a third composite film;
s8, compounding the non-woven fabric and the third composite film into a fourth composite film in a dry compounding machine;
and S9, curing the fourth composite film in a curing chamber to obtain the antistatic composite material.
Specifically, in the step S2, when the infrared thermal imager detects the gluing uniformity of the PET layer, an infrared image is obtained, the infrared image is divided into a plurality of regions, a region area Q in which the gray value of a single region in the infrared image exceeds a preset gray range G0 is determined, the region area Q is compared with a preset region area Q1, and whether the gluing uniformity of the gluing roller reaches the standard or not is determined according to the comparison result,
if Q is less than Q1, the controller judges that the gluing uniformity of the gluing press roller does not reach the standard;
and if Q is larger than or equal to Q1, the controller judges that the gluing uniformity of the gluing pressing roller reaches the standard.
Specifically, in the step S3, when it is determined that the gluing uniformity is not up to the standard, a difference Δ Q between a region area Q of a single region in the infrared image, where the gray value of the single region exceeds a preset gray range G0, and a preset region area Q1 is calculated, Δ Q = Q1-Q is set, and the speed of the initial roller is adjusted according to the difference between the region area and the preset region area,
wherein the controller is provided with a first preset reflection area difference value delta Q1, a second preset reflection area difference value delta Q2, a first roller speed adjusting coefficient k1, a second roller speed adjusting coefficient k2 and a third roller speed adjusting coefficient k3, wherein the delta Q1 is less than the delta Q2,1 is more than k1 and more than k2 and more than k3 and less than 1.2,
if the delta Q is less than or equal to the delta Q1, the controller judges that the first roller speed adjusting coefficient k1 is selected to adjust the initial roller speed;
if the delta Q1 is more than the delta Q and less than or equal to the delta Q2, the controller judges that the speed adjusting coefficient k2 of the second roller is selected to adjust the speed of the initial roller;
if delta Q is > -delta Q2, the controller judges that the third roller speed adjusting coefficient k3 is selected to adjust the initial roller speed;
and when the controller judges that the roller speed adjusting coefficient is selected to be ki, setting i =1,2,3, and setting the adjusted roller speed to be V1, and setting V1= V0 xki, wherein V0 is the initial roller speed of the dry compound machine, and ki is the initial roller speed adjusting coefficient.
Specifically, in the step S3, when the first industrial camera finishes capturing the image of the first composite film, the controller determines the opening width D of the first composite film according to the image, compares the opening width D with a preset opening width D1, determines whether the composite of the first composite film is qualified according to the comparison result,
if D is less than or equal to D1, the controller judges that the first composite film is qualified in compounding;
and if D is larger than D1, the controller judges that the first composite film is unqualified in compounding.
Specifically, in the step S4, when it is determined that the first composite film machine is not qualified for lamination, an opening width difference Δ D between an opening width D of the first composite film and a preset opening width D1 is calculated, Δ D = D1-D is set, and a corresponding adjustment mode is determined according to a comparison result of the opening width difference and the preset opening width difference,
wherein, the controller is provided with a first preset opening width difference Delta D1, the first adjusting mode is to adjust the roller pressure of the dry compound machine, the second adjusting mode is to adjust the tension of the base material, delta D1 is less than Delta D2,
if the delta D is less than or equal to the delta D1, the controller judges that the adjusting mode is a first adjusting mode;
if DeltaD > DeltaD1, the controller determines that the adjusting mode is a second adjusting mode.
Specifically, when the controller determines that the adjustment mode is the first adjustment mode, a first ratio W of the opening width difference Δ D to a first preset opening width difference Δ D1 is calculated, W =Δd 1/. DELTA.d is set, and the adjustment of the roller pressure of the dry lamination machine is determined according to a comparison result of the ratio and a preset ratio,
wherein the controller is provided with a first preset difference value W1, a second preset difference value W2, a first roller pressure adjusting coefficient x1, a second roller pressure adjusting coefficient x2 and a third roller pressure adjusting coefficient x3, W1 is more than W2, x1 is more than 1 and more than x2 is more than x3 and less than 1.5,
if W is less than or equal to W1, the controller judges that the first roller pressure adjusting coefficient x1 is selected to adjust the roller pressure of the dry compound machine;
if W1 is larger than W and smaller than or equal to W2, the controller judges that the second roller pressure adjusting coefficient x2 is selected to adjust the roller pressure of the dry compound machine;
if W is larger than W2, the controller judges that the third roller pressure adjusting coefficient x3 is selected to adjust the roller pressure of the dry-type compound machine;
and when the controller judges that the selected roller pressure adjusting coefficient is xi, setting i =1,2 and 3, and setting the adjusted roller pressure as P, wherein P = P0 xxi, P0 is the initial roller pressure of the dry compound machine, and xi is the roller pressure adjusting coefficient.
When the controller judges that the adjusting mode is the second adjusting mode, the tension of the base material is determined to be adjusted according to the comparison result of the first ratio and the preset ratio,
wherein the controller is provided with a first tension adjusting coefficient g1, a second tension adjusting coefficient g2 and a third tension adjusting coefficient g3, g1 is more than 1 and more than g2 and more than g3 and less than 1.2,
if W is less than or equal to W1, the controller judges that the first tension adjusting coefficient g1 is selected to adjust the tension of the base material;
if W1 is larger than W and smaller than or equal to W2, the controller judges that the second tension adjusting coefficient g2 is selected to adjust the tension of the base material;
if W is larger than W2, the controller judges that the third tension adjusting coefficient g3 is selected to adjust the tension of the base material;
when the controller judges that the selected base material tension adjusting coefficient is gi, setting i =1,2,3, and setting the adjusted tension value as N1, N1= N0 Xgi, wherein N0 is the initial tension value of the base material, and gi is the base material tension adjusting coefficient.
Specifically, in the step S4, when it is determined that the first composite film is qualified to be composited, the controller obtains the thickness H of the first composite film, compares the thickness H of the first composite film with a preset thickness H1, determines whether the thickness of the first composite film is qualified according to a comparison result,
if H is less than or equal to H1, the controller judges that the thickness of the first composite film is qualified;
and if H is larger than H1, the controller judges that the thickness of the first composite film is unqualified.
Specifically, in step S5, when it is determined that the thickness of the first composite film is not qualified, the controller calculates a thickness difference Δ H between the thickness H of the first composite film and a preset thickness H1, sets Δ H = H1-H, and determines a roller pressure compensation value of the dry lamination machine according to a comparison result of the thickness difference and the preset thickness difference,
wherein the controller is provided with a first preset thickness difference value delta H1, a second preset thickness difference value delta H2, a first pressure compensation value P1, a second pressure compensation value P2 and a third pressure compensation value P3, delta H1 is less than delta H2, P1 is more than P2 and more than P3,
if the delta H is less than or equal to the delta H1, the controller judges that the pressure compensation value of the first composite membrane is P3;
if the pressure of the first composite membrane is less than the pressure of the second composite membrane, the controller judges that the pressure compensation value of the first composite membrane is P2;
if Δ H >. Δ H2, the controller determines that the pressure compensation value for the first complex film is P1.
Specifically, in step S5, when the second industrial camera photographs the area of the protruding portion of the first composite film, the controller calculates a protruding area difference Δ E between the area E of the protruding portion and a preset protruding area E1, sets Δ E = E1-E, and selects a corresponding substrate tension correction coefficient according to a comparison result between the protruding area difference and the preset protruding area difference,
wherein the controller is provided with a first preset bulge area difference Delta E1, a second preset bulge area difference Delta E2, a first tension correction coefficient z1, a second tension correction coefficient z2 and a third tension correction coefficient z3, wherein the Delta E1 is less than the Delta E2, the value of z1 is more than 1 and more than z2 and more than z3 is less than 1.5,
if the delta E is not more than the delta E1, the controller judges that the third tension correction coefficient z3 is selected to correct the tension value of the base material;
if the delta E1 is less than the delta E and is not more than the delta E2, the controller judges that the second tension correction coefficient z2 is selected to correct the tension value of the base material;
if delta E is larger than delta E2, the controller judges that the first tension correction coefficient z1 is selected to correct the substrate tension value.
When the controller judges that the selected substrate tension correction coefficient is zi, setting i =1,2,3, and setting the corrected substrate tension value as N2, wherein N2= Nj × zi, wherein j is 0,1, zi is the tension correction coefficient.
An antistatic composite material comprises a composite material arranged from inside to outside
A PET layer which is a two-way stretching polyester film, one side of which is used for printing;
an AL barrier layer which is an aluminum foil and is used for blocking oxygen and water vapor;
the BOPA reinforced layer is made of polyamide and is used for increasing the strength of the composite film;
the PE heat sealing layer is made of polyethylene and is used for heat sealing and antistatic;
the non-woven fabric layer is used for playing a role of moisture prevention;
the thickness of the PET layer is 12-25um, the thickness of the AL blocking layer is 7-30um, the thickness of the BOPA reinforcing layer is 15-30um, and the thickness of the PE heat sealing layer is 30-150um;
the PE heat-sealing layer is black with a light-shielding function, and the resistance value is 10 6-9 Ω/m 2 ；
The bonding of the adhesive used by the gluing and pressing roller in the dry compound machine between two materials is 2-5g/m 3 Layer (c).
Referring to fig. 3, fig. 3 is a schematic structural view of a dry compound machine of the antistatic composite material of the present invention.
The dry compound machine for preparing the antistatic composite material comprises the following components:
a first suspension device 1, a second suspension device 2 and a third suspension device 3 are arranged on one outer side of the suspension device;
an AL inlet 4 is arranged above the outer part of the shell;
a second industrial camera 6 is arranged on one side of the upper part of the outer part of the first composite film, which is close to the inlet 4, and is used for detecting the convex area of the first composite film during compounding;
the other side of the outer part of the first composite film is provided with a first industrial camera 5 for detecting the thickness of the first composite film;
the first suspension device 1 and the second suspension device 2 are provided with rollers 7 for conveying, the third suspension device 3 is provided with a gluing press roller 8, the inner side of the third suspension device is provided with an infrared thermal imager 9, the opposite side is provided with a glue outlet device 10,
in the embodiment of the invention, the PET13 is coated with glue by the gluing press roller 8 and then enters a dry compound machine to be compounded with AL11 to form the first composite film 12.
In the embodiment of the invention, when the first composite film, the second composite film and the third composite film are compounded in the dry compounding machine, the roller speed of the dry compounding machine is controlled within 200m/min, and different drying temperature parameters are set in the dry compounding machine, wherein one section is 50-65 ℃, the second section is 65-85 ℃, and the third section is 75-90 ℃; the bonding temperature of the hot drum in the dry compound machine is 50-70 ℃; the coating amount of the adhesive is controlled to be 4-8g/m on a dry basis 2 。
In the embodiment of the invention, when the fourth composite film is compounded in the dry compounding machine, the roller speed of the dry compounding machine is controlled within 200m/min, and different drying temperature parameters are set in the dry compounding machine, wherein the first section is 20-30 ℃, the second section is 30-40 ℃, and the third section is 40-50 ℃; the laminating temperature of the hot drum in the dry compound machine is 50-70 ℃; the coating amount of the adhesive is controlled to be 4-8g/m on a dry basis 2 。
In the embodiment of the invention, when the curing is carried out in the curing chamber, the curing temperature is controlled to be between 40 and 50 ℃, and the curing time is required to be more than 48 hours.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can be within the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to 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. A method for preparing an antistatic composite material, comprising:
s1, printing one side of a PET layer in a gravure printing machine;
s2, gluing the other side of the PET layer by a gluing compression roller of the dry-type compound machine, and starting an infrared thermal imager by a controller to detect whether the gluing uniformity of the gluing compression roller reaches the standard;
s3, when the gluing uniformity is determined to be not up to the standard, adjusting the speed of an initial roller, when the gluing uniformity is determined to be up to the standard, compounding the PET layer and the AL into a first composite film in the dry compounding machine, starting a first industrial camera by the controller to shoot the first composite film, and analyzing and determining whether the first composite film is qualified or not according to shot images;
s4, when the first composite film is determined to be unqualified in compounding, determining a corresponding adjusting mode according to a difference value between an opening width and a preset opening width, and when the first composite film is determined to be qualified in compounding, analyzing and determining whether the thickness of the first composite film is qualified or not by a controller according to a shot image of the first industrial camera;
s5, when the thickness of the first composite film is determined to be unqualified, determining to compensate the roller pressure of the dry-type compound machine according to a comparison result of the thickness difference and a preset thickness difference, when the thickness of the first composite film is determined to be qualified, detecting the area of a convex part of the first composite film by a second industrial camera, calculating the difference value of the convex area and the preset convex area, and selecting a corresponding base material tension adjusting coefficient according to the comparison result of the convex area difference and the preset convex area difference to adjust the base material tension value;
s6, compounding the first composite film and BOPA into a second composite film in a dry compounding machine;
s7, performing film blowing treatment on the black PE, and compounding the black PE and a second composite film in a dry compounding machine to form a third composite film;
s8, compounding the non-woven fabric and the third composite film into a fourth composite film in a dry compounding machine;
and S9, curing the fourth composite film in a curing chamber to obtain the antistatic composite material.
2. The method of preparing an antistatic composite material as claimed in claim 1, wherein in the step S2, when the infrared thermal imager detects the gluing uniformity of the PET layer, an infrared image is obtained, the infrared image is divided into a plurality of regions, a region area Q where the gray value of a single region in the infrared image exceeds a preset gray range G0 is determined, the region area Q is compared with a preset region area Q1, and whether the gluing uniformity of the gluing roller reaches the standard is determined according to the comparison result,
if Q is less than Q1, the controller judges that the gluing uniformity of the gluing pressing roller does not reach the standard;
and if Q is larger than or equal to Q1, the controller judges that the gluing uniformity of the gluing pressing roller reaches the standard.
3. The method of preparing an antistatic composite material as claimed in claim 2, wherein in the step S3, when it is determined that the coating uniformity is not satisfied, a difference Δ Q between a region area Q of a gray value of a single region in the infrared image exceeding a preset gray range G0 and a preset region area Q1 is calculated, Δ Q = Q1-Q is set, and the initial roller speed is adjusted according to the difference Δ Q and the preset region area, the adjusted roller speed is set to V1, V1= V0 xki, where V0 is the initial roller speed of the dry compounding machine and ki is an initial roller speed adjustment coefficient.
4. The method according to claim 3, wherein in the step S3, when the first industrial camera finishes capturing the image of the first composite film, the controller determines the opening width D of the first composite film according to the image, compares the opening width D with a preset opening width D1, determines whether the first composite film is qualified according to the comparison result,
if D is less than or equal to D1, the controller judges that the first composite film is qualified in compounding;
and if D is larger than D1, the controller judges that the first composite film is unqualified in compounding.
5. The method of preparing an antistatic composite material according to claim 4, wherein in the step S4, when it is determined that the first composite film is not properly laminated, an opening width difference Δ D between an opening width D of the first composite film and a preset opening width D1 is calculated, Δ D = D1-D is set, and a corresponding adjustment manner is determined according to a comparison result of the opening width difference and the preset opening width difference,
wherein, the controller is provided with a first preset opening width difference Delta D1, the first adjusting mode is to adjust the roller pressure of the dry compound machine, the second adjusting mode is to adjust the tension of the base material, delta D1 is less than Delta D2,
if the delta D is less than or equal to the delta D1, the controller judges that the adjusting mode is a first adjusting mode;
if DeltaD >. DELTA.D 1, the controller determines that the adjustment mode is the second adjustment mode.
6. The method of preparing an antistatic composite material as claimed in claim 5, wherein when the controller determines that the adjustment mode is the first adjustment mode, a first ratio W of the opening width difference Δ D to a first preset opening width difference Δ D1 is calculated, W =Δd1/Δ D is set, and the roller pressure of the dry composite machine is determined to be adjusted according to the comparison result of the ratio and the preset ratio, and the adjusted roller pressure is set to P, P = P0 × xi, where P0 is the initial roller pressure of the dry composite machine and xi is the roller pressure adjustment coefficient;
and when the controller judges that the adjusting mode is the second adjusting mode, determining to adjust the tension of the base material according to the comparison result of the first ratio and a preset ratio, and setting the adjusted tension value as N1, wherein N1= N0 Xgi, N0 is the initial tension value of the base material, and gi is the tension adjusting coefficient of the base material.
7. The method according to claim 6, wherein in the step S4, when the first composite film is determined to be qualified, the controller obtains the thickness H of the first composite film, compares the thickness H of the first composite film with a preset thickness H1, determines whether the thickness of the first composite film is qualified according to the comparison result,
if H is less than or equal to H1, the controller judges that the thickness of the first composite film is qualified;
and if H is larger than H1, the controller judges that the thickness of the first composite film is unqualified.
8. The method of preparing an antistatic composite material according to claim 7, wherein the controller calculates a thickness difference Δ H between the thickness H of the first composite film and a preset thickness H1, sets Δ H = H1-H, and determines a roll pressure compensation value of the dry composite machine according to a comparison result of the thickness difference and the preset thickness difference when it is determined that the thickness of the first composite film is not qualified in the step S5,
wherein the controller is provided with a first preset thickness difference value delta H1, a second preset thickness difference value delta H2, a first pressure compensation value P1, a second pressure compensation value P2 and a third pressure compensation value P3, the delta H1 is less than the delta H2, the P1 is more than the P2 and is more than the P3,
if the delta H is not more than the delta H1, the controller judges that the pressure compensation value of the first composite membrane is P3;
if the pressure of the first composite membrane is less than the pressure of the second composite membrane, the controller judges that the pressure compensation value of the first composite membrane is P2;
if Δ H >. Δ H2, the controller determines that the pressure compensation value for the first complex film is P1.
9. The method as claimed in claim 8, wherein in the step S5, when the second industrial camera photographs an area of a protrusion portion of the first composite film, the controller calculates a protrusion area difference Δ E between the area E of the protrusion portion and a preset protrusion area E1, sets Δ E = E1-E, selects a corresponding substrate tension correction coefficient according to a comparison result between the protrusion area difference and the preset protrusion area difference, and sets the corrected substrate tension value as N2, N2= Nj × zi, where j is 0,1 and zi is the tension correction coefficient.
10. Composite material prepared by the process for the preparation of antistatic composite material according to claims 1-9, characterized by comprising the components arranged from inside to outside
A PET layer which is a biaxially oriented polyester film, one side of which is used for printing;
an AL barrier layer which is an aluminum foil and is used for blocking oxygen and water vapor;
the BOPA reinforced layer is polyamide and is used for increasing the strength of the composite membrane;
the PE heat sealing layer is made of polyethylene and is used for performing heat sealing and antistatic effects;
the non-woven fabric layer is used for playing a role of moisture prevention;
the thickness of the PET layer is 12-25um, the thickness of the AL blocking layer is 7-30um, the thickness of the BOPA reinforcing layer is 15-30um, and the thickness of the PE heat sealing layer is 30-150um;
the PE heat sealing layer is black with a light-shading function, and the resistance value is 10 6-9 Ω/m 2 。
CN202211227487.8A 2022-10-09 2022-10-09 Antistatic composite material and preparation method thereof Pending CN115519873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211227487.8A CN115519873A (en) 2022-10-09 2022-10-09 Antistatic composite material and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211227487.8A CN115519873A (en) 2022-10-09 2022-10-09 Antistatic composite material and preparation method thereof

Publications (1)

Publication Number Publication Date
CN115519873A true CN115519873A (en) 2022-12-27

Family

ID=84701901

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211227487.8A Pending CN115519873A (en) 2022-10-09 2022-10-09 Antistatic composite material and preparation method thereof

Country Status (1)

Country Link
CN (1) CN115519873A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118238428A (en) * 2024-05-29 2024-06-25 南通哥班玻璃纤维制品有限公司 Glass fiber mesh cloth and film composite processing control system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104972712A (en) * 2014-04-11 2015-10-14 上海永超真空镀铝有限公司 Preparation method of shading composite material
CN108943953A (en) * 2018-07-16 2018-12-07 湖北宏裕新型包材股份有限公司 A kind of suitable altitude environment dilated food gas flush packaging composite membrane and preparation method thereof
CN108995341A (en) * 2018-08-15 2018-12-14 江阴宝柏包装有限公司 A kind of high-barrier high-strength composite packaging film and preparation method thereof
CN109635409A (en) * 2018-12-05 2019-04-16 广州通泽机械有限公司 Substrate picture and text length control method, device and readable storage medium storing program for executing in recombination process
US20200230928A1 (en) * 2019-01-22 2020-07-23 Liqui-Box Corporation Flexible films, bags therefrom, and products therein with extended shelf life
CN111546733A (en) * 2020-04-27 2020-08-18 黄山永新股份有限公司 PE blown film, PE composite film, packaging bag and preparation method of packaging bag
CN112722962A (en) * 2020-12-30 2021-04-30 泉州市汉威机械制造有限公司 Material unwinding control method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104972712A (en) * 2014-04-11 2015-10-14 上海永超真空镀铝有限公司 Preparation method of shading composite material
CN108943953A (en) * 2018-07-16 2018-12-07 湖北宏裕新型包材股份有限公司 A kind of suitable altitude environment dilated food gas flush packaging composite membrane and preparation method thereof
CN108995341A (en) * 2018-08-15 2018-12-14 江阴宝柏包装有限公司 A kind of high-barrier high-strength composite packaging film and preparation method thereof
CN109635409A (en) * 2018-12-05 2019-04-16 广州通泽机械有限公司 Substrate picture and text length control method, device and readable storage medium storing program for executing in recombination process
US20200230928A1 (en) * 2019-01-22 2020-07-23 Liqui-Box Corporation Flexible films, bags therefrom, and products therein with extended shelf life
CN111546733A (en) * 2020-04-27 2020-08-18 黄山永新股份有限公司 PE blown film, PE composite film, packaging bag and preparation method of packaging bag
CN112722962A (en) * 2020-12-30 2021-04-30 泉州市汉威机械制造有限公司 Material unwinding control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118238428A (en) * 2024-05-29 2024-06-25 南通哥班玻璃纤维制品有限公司 Glass fiber mesh cloth and film composite processing control system

Similar Documents

Publication Publication Date Title
KR102482364B1 (en) Fluororesin compositions, fluororesin sheets, laminates and substrates for circuits
CN115519873A (en) Antistatic composite material and preparation method thereof
CN1077032C (en) Gas barrier laminate and production process thereof
US20090291243A1 (en) Multilayer body
KR101106406B1 (en) Impact-modified polyamide film
US20100110609A1 (en) Highly dielectric film having high withstanding voltage
US20060093906A1 (en) Laminated film and secondary battery comprising the same
US6679297B1 (en) Hose for fuel transportation
US20110255210A1 (en) Film for film capacitor and film capacitor
US8334032B2 (en) Fuel tank and method for producing the same
TW201718214A (en) Multilayer base and method for producing molded body of same
CN101821877A (en) Preparation process for preventing deformation of jelly-roll type electrode assembly
EP1064150A1 (en) Oxygen barrier composite film structure
US8530014B2 (en) Laminate
US7132073B2 (en) Process for producing multilayered product
US20070026177A1 (en) Laminate
CN104602503A (en) Flexible electromagnetic protection jacket composite material and preparation method thereof
JP5392252B2 (en) Polychlorotrifluoroethylene film and solar cell back surface protective sheet
JP2022091852A (en) Exterior material for power storage device, manufacturing method thereof, and power storage device
JP5018782B2 (en) Fuel tank
CN115674722A (en) Composite material with oxygen absorption function and preparation method thereof
JP3367391B2 (en) Evaporated film transparent laminate
WO2016159140A1 (en) Multilayer structure, vacuum packaging bag, and vacuum heat insulating body
US11787927B2 (en) Thermoplastic resin composition and method for producing same
CN114079105A (en) Packaging material for battery

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20221227

RJ01 Rejection of invention patent application after publication