CN114379158A - Waterproof paper-plastic composite hose and preparation method thereof - Google Patents
Waterproof paper-plastic composite hose and preparation method thereof Download PDFInfo
- Publication number
- CN114379158A CN114379158A CN202210063292.8A CN202210063292A CN114379158A CN 114379158 A CN114379158 A CN 114379158A CN 202210063292 A CN202210063292 A CN 202210063292A CN 114379158 A CN114379158 A CN 114379158A
- Authority
- CN
- China
- Prior art keywords
- paper
- layer
- density polyethylene
- injection molding
- plastic 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 88
- 229920003023 plastic Polymers 0.000 title claims abstract description 46
- 239000004033 plastic Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000010410 layer Substances 0.000 claims abstract description 73
- 239000004698 Polyethylene Substances 0.000 claims abstract description 52
- 238000001746 injection moulding Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000012790 adhesive layer Substances 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000001125 extrusion Methods 0.000 claims abstract description 30
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 26
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 26
- 238000013329 compounding Methods 0.000 claims abstract description 24
- 239000004743 Polypropylene Substances 0.000 claims abstract description 11
- -1 polypropylene Polymers 0.000 claims abstract description 11
- 229920001155 polypropylene Polymers 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims abstract description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 22
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 16
- 229920001179 medium density polyethylene Polymers 0.000 claims description 15
- 239000004701 medium-density polyethylene Substances 0.000 claims description 15
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 12
- 238000007731 hot pressing Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000004073 vulcanization Methods 0.000 claims description 11
- 238000003475 lamination Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000005977 Ethylene Substances 0.000 claims description 7
- 239000002985 plastic film Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 241000680172 Platytroctidae Species 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 4
- 229920001519 homopolymer Polymers 0.000 claims description 3
- 239000004711 α-olefin Substances 0.000 claims description 3
- 239000012263 liquid product Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 12
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 238000010345 tape casting Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
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
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- 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
- B32B27/10—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 paper or cardboard
-
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/005—Hoses, i.e. flexible
-
- 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
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- 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
- B32B2597/00—Tubular articles, e.g. hoses, pipes
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a waterproof paper-plastic composite hose and a preparation method thereof, wherein the composite hose comprises a pipe cap, a pipe shoulder and a pipe body; the pipe cap is made of modified polypropylene and is formed by injection molding through an injection molding machine; the pipe shoulder is made of modified high-density polyethylene and is formed by injection molding through an injection molding machine; the pipe body is manufactured into a composite sheet material through an extrusion compounding process, and the composite sheet material sequentially comprises a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer from outside to inside; the hose prepared by the invention has high composite strength and good waterproof performance, and can be widely applied to packaging of various liquid products.
Description
Technical Field
The invention belongs to the field of composite hose products, and particularly relates to a waterproof paper-plastic composite hose and a preparation method thereof.
Background
The existing hoses on the market are mostly in a structure of extruding and compounding plastic and aluminum foil or a structure of extruding and compounding plastic and ethylene-vinyl alcohol copolymer (EVOH), the all-plastic composite hose is a multi-layer composite hose with plastic as a main component, and a barrier layer contains EVOH or PET and other materials; the aluminum-plastic composite hose is a tubular product which is made by using plastic and aluminum foil as main materials and then being processed into sheets through a co-extrusion compounding process, has good barrier property and can be applied to the cosmetic industry.
The paper-plastic composite hose is a multilayer composite tubular product made of paper materials instead of partial plastic layers, so that the use of petrochemical energy is reduced; however, the existing paper-containing composite hose has the problems of poor strength after compounding, high water absorption and the like, the service life of the paper-plastic composite hose is shortened, and the popularization and application of the paper-plastic composite hose are severely limited.
Disclosure of Invention
In order to solve the technical problems of low composite strength, poor waterproof performance and the like of the paper-plastic hose, the invention provides the waterproof paper-plastic composite hose and the preparation method thereof.
In order to solve the technical problems, the invention adopts a technical scheme that: a waterproof paper-plastic composite hose comprises a hose cap, a hose shoulder and a hose body;
the pipe cap is made of modified polypropylene and is formed by injection molding through an injection molding machine;
the pipe shoulder is made of modified high-density polyethylene and is formed by injection molding through an injection molding machine;
the pipe body is made into a composite sheet material through an extrusion compounding process, and the composite sheet material sequentially comprises a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer from outside to inside.
Further, the first PE layer and the second PE layer are each composed of: 50 to 60 percent of high-density polyethylene, 30 to 40 percent of metallocene linear medium-density polyethylene and 10 to 20 percent of linear low-density polyethylene.
Further, the linear low density polyethylene is a copolymer of ethylene and an alpha-olefinThe degree is 0.90-0.93g/cm3The melt index is 1-10g/10 min.
Further, the linear low density polyethylene is a branched ethylene homopolymer having a density of 0.91 to 0.93g/cm3The melt index is 2-10g/10 min.
Further, the first adhesive layer and the second adhesive layer are both 100% laminating grade LDPE.
Further, the special paper layer is food-grade wrapping paper with high strength and high tightness.
A preparation method of a waterproof paper-plastic composite hose comprises the following steps:
s1, mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 400-;
mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 400-;
s2, preparing a composite sheet from the first PE layer, the first adhesive layer, the special paper layer, the second adhesive layer and the second PE layer through an extrusion compounding process;
s3, directly making the composite sheet material prepared in the step S2 into a sheet material with one side folded and the other side fused and sealed in a folding and hot-pressing composite mode, and directly making the sheet material into a tube body on a tube making machine without cutting;
s4, injection molding the modified polypropylene material through an injection molding machine, and forming to prepare a pipe cap;
s5, injection molding the modified high-density polyethylene material by an injection molding machine, and forming to prepare a pipe shoulder;
s6, welding the tube shoulder prepared in the step S5 to the tube body prepared in the step S3; welding the pipe cap prepared in the step S4 to the pipe shoulder;
and preparing the waterproof paper-plastic composite hose.
In step S2, in the process of manufacturing the composite sheet by the extrusion lamination process, the circular cutting knife auxiliary device and the flash separation auxiliary device are installed at the paper unwinding station, and when the circular cutting knife auxiliary device and the flash separation auxiliary device operate, the circular cutting knife auxiliary device and the flash separation auxiliary device operate at the same linear speed as that of the extrusion lamination machine, so as to separate the paper at the fixed width position, and form the paper-plastic sheet with non-full-laid paper and spaced strips.
Further, the pipe body manufactured in the step S3 is subjected to a vulcanization treatment; the temperature of the vulcanization treatment is 155-165 ℃, and the time of the vulcanization treatment is 30-40 min.
Further, the device used in the folding process in the step S3 is a melt sealing machine or a palm folding machine; the hot-pressing compounding equipment is a multi-roller hot press and comprises a preheating roller and a compound roller comprising an upper steel roller and a lower steel roller.
The invention has the beneficial effects that:
1. according to the waterproof paper-plastic composite hose, during extrusion and compounding, a slitting circular knife and two main auxiliary devices for flash separation are mounted at the unreeling station of a special paper layer and are connected with a main machine system through a servo motor, the auxiliary devices can keep the same linear speed with a main machine to operate when the main machine operates, so that waste paper edges at the fixed width position can be separated out, paper-plastic sheets which are not fully laid and present in a strip shape at intervals are formed, the interval width can be designed according to the unfolding width of the hose, and the problem that the paper is exposed at the joint position of the composite hose body is solved;
2. the invention relates to a waterproof paper-plastic composite hose and a preparation method thereof, wherein a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer are made into composite sheets through an extrusion compounding process, the prepared composite sheets are directly made into single-row sheets with one side folded and the other side fused and edge-sealed in a folding and hot-pressing compounding mode, the single-row sheets can be directly used for manufacturing pipes without cutting, the folding process adopts a fusion sealing machine or a palm closing machine commonly used in the soft package industry, hot-pressing compounding adopts a specially designed multi-roller hot press, the hot press comprises a plurality of sets of preheating rollers and at least one set of composite rollers containing upper and lower steel rods, the folded paper-plastic sheets are preheated and hot-pressed to form one side folded, and the special sheets with the other side fused and edge-sealed have an excellent waterproof function;
3. the waterproof paper-plastic composite hose has high composite strength and good waterproof performance, and can be widely applied to packaging of various liquid products.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
Example 1
A waterproof paper-plastic composite hose comprises a hose cap, a hose shoulder and a hose body;
the pipe cap is made of modified polypropylene and is formed by injection molding through an injection molding machine;
the pipe shoulder is made of modified high-density polyethylene and is formed by injection molding through an injection molding machine;
the pipe body is made into a composite sheet material through an extrusion compounding process, and the composite sheet material sequentially comprises a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer from outside to inside.
The first PE layer and the second PE layer are respectively composed of the following components: 50% of high density polyethylene, 30% of metallocene linear medium density polyethylene and 20% of linear low density polyethylene.
The linear low-density polyethylene is a copolymer of ethylene and alpha-olefin, and the density is 0.90g/cm3The melt index was 1g/10 min.
The first adhesive layer and the second adhesive layer are both 100% laminating-grade LDPE.
The special paper layer is food-grade packaging paper with high strength and high tightness.
A preparation method of a waterproof paper-plastic composite hose comprises the following steps:
s1, mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene in proportion, stirring at a speed of 400r/min to a uniform state to obtain mixed raw material resin of the first PE layer, putting the mixed raw material resin of the first PE layer into a screw extruder, performing melt extrusion at 180 ℃, and performing tape casting to obtain the first PE layer;
mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 400r/min to a uniform state to obtain mixed raw material resin of a second PE layer, putting the mixed raw material resin of the second PE layer into a screw extruder, performing melt extrusion at 180 ℃, and performing tape casting to prepare a second PE layer;
s2, preparing a composite sheet from the first PE layer, the first adhesive layer, the special paper layer, the second adhesive layer and the second PE layer through an extrusion compounding process;
s3, directly making the composite sheet material prepared in the step S2 into a sheet material with one side folded and the other side fused and sealed in a folding and hot-pressing composite mode, and directly making the sheet material into a tube body on a tube making machine without cutting;
s4, injection molding the modified polypropylene material through an injection molding machine, and forming to prepare a pipe cap;
s5, injection molding the modified high-density polyethylene material by an injection molding machine, and forming to prepare a pipe shoulder;
s6, welding the tube shoulder prepared in the step S5 to the tube body prepared in the step S3; welding the pipe cap prepared in the step S4 to the pipe shoulder;
and preparing the waterproof paper-plastic composite hose.
In the step S2, in the process of manufacturing the composite sheet by the extrusion lamination process, the slitting circular knife auxiliary device and the flash separation auxiliary device are installed at the paper unwinding station, and when the circular knife auxiliary device and the flash separation auxiliary device operate, the circular knife auxiliary device and the flash separation auxiliary device keep the same linear speed as that of the extrusion lamination machine to operate, and the paper at the fixed width position is separated, so that the paper-plastic sheet with non-full-laid paper and interval strip-shaped paper is formed.
Vulcanizing the pipe body prepared in the step S3; the temperature of the vulcanization treatment is 155 ℃, and the time of the vulcanization treatment is 30 min.
The equipment used in the folding process in the step S3 is a melt sealing machine or a palm folding machine; the hot-pressing compounding equipment is a multi-roller hot press and comprises a preheating roller and a compound roller comprising an upper steel roller and a lower steel roller.
Example 2
A waterproof paper-plastic composite hose comprises a hose cap, a hose shoulder and a hose body;
the pipe cap is made of modified polypropylene and is formed by injection molding through an injection molding machine;
the pipe shoulder is made of modified high-density polyethylene and is formed by injection molding through an injection molding machine;
the pipe body is made into a composite sheet material through an extrusion compounding process, and the composite sheet material sequentially comprises a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer from outside to inside.
The first PE layer and the second PE layer are respectively composed of the following components: 55% of high density polyethylene, 35% of metallocene linear medium density polyethylene and 10% of linear low density polyethylene.
The linear low-density polyethylene is a copolymer of ethylene and alpha-olefin and has the density of 0.92g/cm3The melt index was 5g/10 min.
The first adhesive layer and the second adhesive layer are both 100% laminating-grade LDPE.
The special paper layer is food-grade packaging paper with high strength and high tightness.
A preparation method of a waterproof paper-plastic composite hose comprises the following steps:
s1, mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene in proportion, stirring at a speed of 500r/min to a uniform state to obtain mixed raw material resin of the first PE layer, putting the mixed raw material resin of the first PE layer into a screw extruder, performing melt extrusion at 200 ℃, and performing tape casting to obtain the first PE layer;
mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 500r/min to a uniform state to obtain mixed raw material resin of a second PE layer, putting the mixed raw material resin of the second PE layer into a screw extruder, performing melt extrusion at 200 ℃, and performing tape casting to prepare a second PE layer;
s2, preparing a composite sheet from the first PE layer, the first adhesive layer, the special paper layer, the second adhesive layer and the second PE layer through an extrusion compounding process;
s3, directly making the composite sheet material prepared in the step S2 into a sheet material with one side folded and the other side fused and sealed in a folding and hot-pressing composite mode, and directly making the sheet material into a tube body on a tube making machine without cutting;
s4, injection molding the modified polypropylene material through an injection molding machine, and forming to prepare a pipe cap;
s5, injection molding the modified high-density polyethylene material by an injection molding machine, and forming to prepare a pipe shoulder;
s6, welding the tube shoulder prepared in the step S5 to the tube body prepared in the step S3; welding the pipe cap prepared in the step S4 to the pipe shoulder;
and preparing the waterproof paper-plastic composite hose.
In the step S2, in the process of manufacturing the composite sheet by the extrusion lamination process, the slitting circular knife auxiliary device and the flash separation auxiliary device are installed at the paper unwinding station, and when the circular knife auxiliary device and the flash separation auxiliary device operate, the circular knife auxiliary device and the flash separation auxiliary device keep the same linear speed as that of the extrusion lamination machine to operate, and the paper at the fixed width position is separated, so that the paper-plastic sheet with non-full-laid paper and interval strip-shaped paper is formed.
Vulcanizing the pipe body prepared in the step S3; the temperature of the vulcanization treatment is 160 ℃, and the time of the vulcanization treatment is 35 min.
The equipment used in the folding process in the step S3 is a melt sealing machine or a palm folding machine; the hot-pressing compounding equipment is a multi-roller hot press and comprises a preheating roller and a compound roller comprising an upper steel roller and a lower steel roller.
Example 3
A waterproof paper-plastic composite hose comprises a hose cap, a hose shoulder and a hose body;
the pipe cap is made of modified polypropylene and is formed by injection molding through an injection molding machine;
the pipe shoulder is made of modified high-density polyethylene and is formed by injection molding through an injection molding machine;
the pipe body is made into a composite sheet material through an extrusion compounding process, and the composite sheet material sequentially comprises a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer from outside to inside.
The first PE layer and the second PE layer are respectively composed of the following components: 60% of high density polyethylene, 30% of metallocene linear medium density polyethylene and 10% of linear low density polyethylene.
The linear low-density polyethylene is a branched chain type ethylene homopolymer with the density of 0.92g/cm3The melt index was 5g/10 min.
The first adhesive layer and the second adhesive layer are both 100% laminating-grade LDPE.
The special paper layer is food-grade packaging paper with high strength and high tightness.
A preparation method of a waterproof paper-plastic composite hose comprises the following steps:
s1, mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene in proportion, stirring at a speed of 600r/min to a uniform state to obtain mixed raw material resin of the first PE layer, putting the mixed raw material resin of the first PE layer into a screw extruder, performing melt extrusion at 230 ℃, and performing tape casting to obtain the first PE layer;
mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 600r/min to a uniform state to obtain mixed raw material resin of a second PE layer, putting the mixed raw material resin of the second PE layer into a screw extruder, performing melt extrusion at 230 ℃, and performing tape casting to prepare a second PE layer;
s2, preparing a composite sheet from the first PE layer, the first adhesive layer, the special paper layer, the second adhesive layer and the second PE layer through an extrusion compounding process;
s3, directly making the composite sheet material prepared in the step S2 into a sheet material with one side folded and the other side fused and sealed in a folding and hot-pressing composite mode, and directly making the sheet material into a tube body on a tube making machine without cutting;
s4, injection molding the modified polypropylene material through an injection molding machine, and forming to prepare a pipe cap;
s5, injection molding the modified high-density polyethylene material by an injection molding machine, and forming to prepare a pipe shoulder;
s6, welding the tube shoulder prepared in the step S5 to the tube body prepared in the step S3; welding the pipe cap prepared in the step S4 to the pipe shoulder;
and preparing the waterproof paper-plastic composite hose.
In the step S2, in the process of manufacturing the composite sheet by the extrusion lamination process, the slitting circular knife auxiliary device and the flash separation auxiliary device are installed at the paper unwinding station, and when the circular knife auxiliary device and the flash separation auxiliary device operate, the circular knife auxiliary device and the flash separation auxiliary device keep the same linear speed as that of the extrusion lamination machine to operate, and the paper at the fixed width position is separated, so that the paper-plastic sheet with non-full-laid paper and interval strip-shaped paper is formed.
Vulcanizing the pipe body prepared in the step S3; the temperature of the vulcanization treatment is 165 ℃, and the time of the vulcanization treatment is 40 min.
The equipment used in the folding process in the step S3 is a melt sealing machine or a palm folding machine; the hot-pressing compounding equipment is a multi-roller hot press and comprises a preheating roller and a compound roller comprising an upper steel roller and a lower steel roller.
The water resistance and the composite strength of the paper-plastic composite hoses in examples 1 to 3 were tested according to the determination methods in GB/T1034-2008 and GB/T8808-88, and the test results are shown in Table 1 below:
table 1 test results of waterproof performance and composite strength of paper-plastic composite hoses in examples 1 to 3
From the results in table 1, it can be seen that the water absorption of the paper-plastic composite hoses of examples 1-3 was still less than 1% after soaking in water at 23 ℃ for 192 hours; according to GB/T8808-88, the T-type (90 DEG) peel strength of the paper-plastic composite hose materials of the examples 1-3 is measured, and the detection results are all obviously higher than the standard value of 10N/15 mm; the paper-plastic composite hose prepared by the invention has good waterproof performance and composite strength.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a compound hose is moulded to waterproof type paper which characterized in that: the composite hose comprises a hose cap, a hose shoulder and a hose body;
the pipe cap is made of modified polypropylene and is formed by injection molding through an injection molding machine;
the pipe shoulder is made of modified high-density polyethylene and is formed by injection molding through an injection molding machine;
the pipe body is made into a composite sheet material through an extrusion compounding process, and the composite sheet material sequentially comprises a first PE layer, a first adhesive layer, a special paper layer, a second adhesive layer and a second PE layer from outside to inside.
2. The waterproof paper-plastic composite hose according to claim 1, wherein: the first PE layer and the second PE layer are respectively composed of the following components: 50 to 60 percent of high-density polyethylene, 30 to 40 percent of metallocene linear medium-density polyethylene and 10 to 20 percent of linear low-density polyethylene.
3. The waterproof paper-plastic composite hose according to claim 2, wherein: the linear low-density polyethylene is a copolymer of ethylene and alpha-olefin, and the density is 0.90-0.93g/cm3The melt index is 1-10g/10 min.
4. The waterproof paper-plastic composite hose according to claim 2, wherein: the above-mentionedThe linear low density polyethylene is branched chain type ethylene homopolymer with density of 0.91-0.93g/cm3The melt index is 2-10g/10 min.
5. The waterproof paper-plastic composite hose according to claim 1, wherein: the first adhesive layer and the second adhesive layer are both 100% laminating-grade LDPE.
6. The waterproof paper-plastic composite hose according to claim 1, wherein: the special paper layer is food-grade packaging paper with high strength and high tightness.
7. A method for preparing a waterproof paper-plastic composite hose according to any one of claims 1 to 6, comprising the steps of:
s1, mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 400-;
mixing high-density polyethylene, metallocene linear medium-density polyethylene and linear low-density polyethylene according to a proportion, stirring at a speed of 400-;
s2, preparing a composite sheet from the first PE layer, the first adhesive layer, the special paper layer, the second adhesive layer and the second PE layer through an extrusion compounding process;
s3, directly making the composite sheet material prepared in the step S2 into a sheet material with one side folded and the other side fused and sealed in a folding and hot-pressing composite mode, and directly making the sheet material into a tube body on a tube making machine without cutting;
s4, injection molding the modified polypropylene material through an injection molding machine, and forming to prepare a pipe cap;
s5, injection molding the modified high-density polyethylene material by an injection molding machine, and forming to prepare a pipe shoulder;
s6, welding the tube shoulder prepared in the step S5 to the tube body prepared in the step S3; welding the pipe cap prepared in the step S4 to the pipe shoulder;
and preparing the waterproof paper-plastic composite hose.
8. The preparation method of the waterproof paper-plastic composite hose according to claim 7, characterized in that: in the step S2, in the process of manufacturing the composite sheet by the extrusion lamination process, the slitting circular knife auxiliary device and the flash separation auxiliary device are installed at the paper unwinding station, and when the circular knife auxiliary device and the flash separation auxiliary device operate, the circular knife auxiliary device and the flash separation auxiliary device keep the same linear speed as that of the extrusion lamination machine to operate, and the paper at the fixed width position is separated, so that the paper-plastic sheet with non-full-laid paper and interval strip-shaped paper is formed.
9. The preparation method of the waterproof paper-plastic composite hose according to claim 7, characterized in that: vulcanizing the pipe body prepared in the step S3; the temperature of the vulcanization treatment is 155-165 ℃, and the time of the vulcanization treatment is 30-40 min.
10. The preparation method of the waterproof paper-plastic composite material according to claim 7, wherein the preparation method comprises the following steps: the equipment used in the folding process in the step S3 is a melt sealing machine or a palm folding machine; the hot-pressing compounding equipment is a multi-roller hot press and comprises a preheating roller and a compound roller comprising an upper steel roller and a lower steel roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210063292.8A CN114379158B (en) | 2022-01-20 | 2022-01-20 | Waterproof paper-plastic composite hose and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210063292.8A CN114379158B (en) | 2022-01-20 | 2022-01-20 | Waterproof paper-plastic composite hose and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114379158A true CN114379158A (en) | 2022-04-22 |
| CN114379158B CN114379158B (en) | 2022-08-30 |
Family
ID=81204731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210063292.8A Active CN114379158B (en) | 2022-01-20 | 2022-01-20 | Waterproof paper-plastic composite hose and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114379158B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116872537A (en) * | 2023-07-17 | 2023-10-13 | 广东瑞远新材料有限公司 | High-oxygen-resistance composite hose and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786999A (en) * | 2014-01-17 | 2014-05-14 | 冯英 | Liquid food paper-plastic lamination soft packaging material, box special for box-packaged liquor and production technology thereof |
| EP1896257B1 (en) * | 2005-06-15 | 2018-01-10 | Essel Deutschland Gmbh & Co. Kg | Laminate for tube and container structures |
| CN110588088A (en) * | 2019-09-27 | 2019-12-20 | 三樱包装（江苏）有限公司 | Waterproof paper-containing composite hose and preparation process thereof |
| WO2020009667A1 (en) * | 2018-07-06 | 2020-01-09 | Kimpai Lamitube Co., Ltd. | Tubular shoulder for container |
| CN111849011A (en) * | 2020-08-07 | 2020-10-30 | 广州市瑞高包装工业有限公司 | Preparation method of high-barrier recyclable plastic and composite hose |
| CN112853806A (en) * | 2021-01-06 | 2021-05-28 | 广州市瑞高包装工业有限公司 | Paper-plastic pipe preparation method and paper-plastic pipe |
-
2022
- 2022-01-20 CN CN202210063292.8A patent/CN114379158B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1896257B1 (en) * | 2005-06-15 | 2018-01-10 | Essel Deutschland Gmbh & Co. Kg | Laminate for tube and container structures |
| CN103786999A (en) * | 2014-01-17 | 2014-05-14 | 冯英 | Liquid food paper-plastic lamination soft packaging material, box special for box-packaged liquor and production technology thereof |
| WO2020009667A1 (en) * | 2018-07-06 | 2020-01-09 | Kimpai Lamitube Co., Ltd. | Tubular shoulder for container |
| CN110588088A (en) * | 2019-09-27 | 2019-12-20 | 三樱包装（江苏）有限公司 | Waterproof paper-containing composite hose and preparation process thereof |
| CN111849011A (en) * | 2020-08-07 | 2020-10-30 | 广州市瑞高包装工业有限公司 | Preparation method of high-barrier recyclable plastic and composite hose |
| CN112853806A (en) * | 2021-01-06 | 2021-05-28 | 广州市瑞高包装工业有限公司 | Paper-plastic pipe preparation method and paper-plastic pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116872537A (en) * | 2023-07-17 | 2023-10-13 | 广东瑞远新材料有限公司 | High-oxygen-resistance composite hose and preparation method thereof |
| CN116872537B (en) * | 2023-07-17 | 2024-01-26 | 广东瑞远新材料有限公司 | High-oxygen-resistance composite hose and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114379158B (en) | 2022-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1243257A (en) | Multi-layer film or sheet material | |
| EP3224015B1 (en) | Polymer compositions and extrusion coated articles | |
| EP0087080B1 (en) | Laminate film | |
| EP2956303B2 (en) | Packaging laminate, method for producing same, and packaging container produced from the packaging laminate | |
| EP3732042A1 (en) | Recyclable films for product packaging | |
| CN109927358B (en) | A kind of high-barrier anti-extrusion all-plastic flexible sheet material and preparation method thereof | |
| CN102216076A (en) | Curl-free polyolefin-based film used for the packaging of sterile products | |
| CN104772956B (en) | A kind of light-weight packed film and preparation method thereof | |
| CN114379158B (en) | Waterproof paper-plastic composite hose and preparation method thereof | |
| CN108032568A (en) | A kind of high lucifuge high-barrier liquid packaging film and its production method | |
| CN102250288B (en) | Preparation method of adhesive layer material for nylon/PE(polyethylene) co-extrusion lamination | |
| CN103648749B (en) | For the preparation of the method for orientation polyolefin film and thus preparation orientation polyolefin film | |
| CN110385905B (en) | Laminated co-extrusion film containing double-protection core barrier layers and production process thereof | |
| CN104859244A (en) | Self-adhesion, high strength and high-temperature resistant nylon composite film for waterproof coiled materials and machining method thereof | |
| CN102731726A (en) | Preparation method of material used for nylon/propylene (PP) coextrusion composite adhesive layer | |
| JP2020090307A (en) | Sealant film for packaging material, packaging material, and package | |
| CN115122740A (en) | Barrier hot-melt adhesive film and preparation method thereof | |
| CN110303740B (en) | Multilayer coextrusion biaxially oriented composite film | |
| CN114407465A (en) | Polypropylene film for lithium battery aluminum plastic packaging film and preparation method thereof | |
| CN211542695U (en) | Composite sheet for medicine packaging and traditional Chinese medicine honeyed pill packaging prepared from same | |
| CN106585013B (en) | Polyolefin biaxial tension electrostatic film and preparation method thereof | |
| EP2718103B1 (en) | Invisible seam laminated article and process of manufacture | |
| CN110395032A (en) | A kind of lithium ion battery flexible package innermost layer polypropylene screen | |
| CN114454578B (en) | Three-layer co-extrusion polyethylene heavy packaging film | |
| CN114013076B (en) | Preparation method of biaxially oriented polypropylene polyvinyl alcohol coating film with high heat seal strength |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |