CN117430894B - 一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用 - Google Patents
一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用 Download PDFInfo
- Publication number
- CN117430894B CN117430894B CN202311373142.8A CN202311373142A CN117430894B CN 117430894 B CN117430894 B CN 117430894B CN 202311373142 A CN202311373142 A CN 202311373142A CN 117430894 B CN117430894 B CN 117430894B
- Authority
- CN
- China
- Prior art keywords
- ethylene
- polyolefin material
- stretchable polyolefin
- film
- functional layer
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 80
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 239000002346 layers by function Substances 0.000 claims abstract description 46
- -1 polyethylene Polymers 0.000 claims abstract description 36
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims abstract description 35
- 125000003118 aryl group Chemical group 0.000 claims abstract description 35
- 229920001470 polyketone Polymers 0.000 claims abstract description 35
- 239000004698 Polyethylene Substances 0.000 claims abstract description 28
- 229920000573 polyethylene Polymers 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 21
- 150000003505 terpenes Chemical class 0.000 claims abstract description 21
- 235000007586 terpenes Nutrition 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 19
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001577 copolymer Polymers 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 6
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 33
- 239000012792 core layer Substances 0.000 claims description 25
- 239000000155 melt Substances 0.000 claims description 22
- 239000002344 surface layer Substances 0.000 claims description 20
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 15
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 14
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 13
- 238000005469 granulation Methods 0.000 claims description 12
- 230000003179 granulation Effects 0.000 claims description 12
- 239000004743 Polypropylene Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009998 heat setting Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000000806 elastomer Substances 0.000 claims description 4
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 abstract description 31
- 229920001684 low density polyethylene Polymers 0.000 abstract description 7
- 239000004702 low-density polyethylene Substances 0.000 abstract description 7
- 239000005038 ethylene vinyl acetate Substances 0.000 description 29
- 230000000052 comparative effect Effects 0.000 description 13
- 239000010410 layer Substances 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 12
- 239000002987 primer (paints) Substances 0.000 description 12
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 9
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007765 extrusion coating Methods 0.000 description 2
- 229920000092 linear low density polyethylene Polymers 0.000 description 2
- 239000004707 linear low-density polyethylene Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005606 polypropylene copolymer Polymers 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000007718 adhesive strength test Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910000071 diazene Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- 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
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/288—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyketones
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2445/00—Characterised by the use of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2473/00—Characterised by the use of macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups C08J2459/00 - C08J2471/00; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
本发明公开了一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用,所述可拉伸聚烯烃材料包括如下质量百分含量的原料:乙丙共聚物64~82%、萜烯树脂5~8%、芳香族聚酮1~5%、马来酸酐接枝POE 4~6%、支化聚乙烯3~6%、乙烯‑乙烯醇共聚物5~11%,所述芳香族聚酮的分子结构中含有羧基或氨基;该可拉伸聚烯烃材料作为功能层材料与EVA的结合力强,解决现有技术采用低密度聚乙烯为功能层材料,在功能层生产过程中,低密度聚乙烯与纵向拉伸辊存在粘连问题,提高复合薄膜生产效率。
Description
技术领域
本发明属于功能性聚烯烃材料领域,尤其涉及一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用。
背景技术
复合薄膜广泛用于图书、杂志封面、手提袋、纸质食品包装袋等纸质产品中,在图书、杂志封面、手提袋、纸质食品包装袋等纸质产品中复合薄膜可以起到防止印刷层刮花、防水、防尘等作用,同时,可以保持纸质产品在长久使用中可以抵御环境中水汽、异物对包装表面印刷内容损毁。
由于现有的聚丙烯材料的表面极性低、极性低、熔点高,无法与纸张直接粘合。因而,传统的纸材复合膜通过基材层BOPP(三层共挤双向拉伸聚丙烯)与热熔层EVA(乙烯-醋酸乙烯共聚物)复合制备,基材层一般由由面层、芯层、功能层构成,主要材料均为聚丙烯,EVA为热熔层,EVA加热后可很好的与纸张黏合。
但聚丙烯与EVA相容性差,因而需要在二者之间涂布一层底涂剂,即在使用前预先在BOPP薄膜表层涂布底涂剂,然后与熔融的聚醋酸乙烯酯(EVA)热熔胶挤出复合,经冷却定型后,制成BOPP预涂膜,再与纸张直接热压复合。然而,在BOPP薄膜与热熔层之间涂布一层底涂剂,会存在以下弊端:(1)在预涂膜生产过程中,底涂剂层中溶剂的挥发性人体、环境危害较大;(2)底涂剂的存在使得产品后期易发生黄变,影响预涂膜的外观;(3)涂覆底涂剂会增加预涂膜生产工序及能耗,由于涂布工序的增加,设备投入成本和工艺能耗都相应提高,同时生产速度受底涂剂干燥速度影响较大,涂布环节的生产速度不高,影响到整个生产线的运行效率;(4)涂布底涂剂后的BOPP薄膜易出现粘辊、反拉、变形和收卷张力不均等问题,并且底涂剂会析出对膜表面造成污染,甚至造成预涂膜产品开裂、褶皱。
为解决基材层中的主要材料聚丙烯与EVA相容性差,进而需要在二者之间涂布一层底涂剂的问题,现有技术采用以低密度聚乙烯为基材膜功能层,并在基材膜芯层中加上适量丙烯基弹性体,通过这两种材料的作用,无需涂布便能够很好的将EVA与基材薄膜复合在一起,免去了涂布工序。但低密度聚乙烯熔点低,采用低密度聚乙烯为基材膜功能层,在功能层生产过程中,低密度聚乙烯与纵向拉伸辊存在粘连问题。因此,提供一种不需要使用底涂剂的功能层材料,且解决低密度聚乙烯与纵向拉伸辊存在粘连问题,即可使功能层与EVA很好的结合在一起具备一定的市场价值。
发明内容
针对现有技术的不足,本发明提供一种可拉伸聚烯烃材料,该可拉伸聚烯烃材料作为功能层材料与EVA的结合力强,可运用在免底涂膜使用领域,解决现有技术采用低密度聚乙烯为功能层材料,在功能层生产过程中,低密度聚乙烯与纵向拉伸辊存在粘连问题,降低加工成本和环境污染,提高复合薄膜生产效率,让免底涂膜的应用更广泛。
本发明的目的在于提供一种可拉伸聚烯烃材料,所述可拉伸聚烯烃材料包括如下质量百分含量的原料:乙丙共聚物64~82%、萜烯树脂5~8%、芳香族聚酮1~5%、马来酸酐接枝POE 4~6%、支化聚乙烯3~6%、乙烯-乙烯醇共聚物5~11%;所述芳香族聚酮的分子结构中含有羧基或氨基。
本发明的可拉伸聚烯烃材料中的萜烯树脂的加入可以提高可拉伸聚烯烃材料制备功能层的粘接力,但萜烯树脂的分子结构上含有双键,对光和热等不稳定,耐候性差。发明人在实验过程中发现,芳香族聚酮的加入可以提高萜烯树脂的耐候性,进而提高由可拉伸聚烯烃材料制备的功能层的拉伸强度及由可拉伸聚烯烃材料制备的功能层与EVA的粘接强度。
芳香族聚酮的分子结构中含有羧基或氨基,与马来酸酐接枝POE和乙烯-乙烯醇共聚物存在氢键作用,加强材料间的相容性及粘合性,进而提高由可拉伸聚烯烃材料制备的功能层的拉伸强度及由可拉伸聚烯烃材料制备的功能层与EVA的粘接强度,且芳香族聚酮可提高功能层的阻隔性能。
支化聚乙烯与乙烯-醋酸乙烯共聚物链段中存在相似的乙烯链段,因此含有支化聚乙烯材料的功能层与乙烯-醋酸乙烯共聚物相容性好,使复合膜表面无需涂布底涂剂便能与EVA直接复合。同时,支化聚乙烯的支化结构贯穿于各聚合物之间,增强功能层各物料间的结合力。此外,EVA在高温高湿环境下容易被水解破坏,乙烯-乙烯醇共聚物可以有效防止EVA高温高湿环境下被水解破坏,可能的原因是乙烯-乙烯醇共聚物在EVA和支化聚乙烯之间起到增容作用,增强了EVA和支化聚乙烯间的作用力。
优选地,所述面层的厚度为1~3μm,所述芯层的厚度为10~15μm,所述功能层的厚度为1~2μm。
更优选地,所述面层的厚度为1μm,所述芯层的厚度为10μm,所述功能层的厚度为2μm。
优选地,所述乙丙共聚物的熔融指数为3.0~4.0g/10min。
优选地,所述萜烯树脂的软化点为50~70℃,酸值为60~75mgKOH/g。
更优选地,所述萜烯树脂的软化点为60℃,酸值为70mgKOH/g。
优选地,所述芳香族聚酮的结构式如下所示:
其中,R选自羧基或氨基;数均分子量不低于20000g/mol。
优选地,所述马来酸酐接枝POE的接枝率为1~3%。
优选地,所述支化聚乙烯的重均分子量为5万~15万g/mol,支化度为100~120,甲基支链含量为50~56%,乙基支链含量为15~18%,丙基支链及含4个碳以上支链含量为27.8~35%。
更优选地,所述支化聚乙烯的重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%。
优选地,所述支化聚乙烯的重均分子量为25万~35万g/mol,支化度为100~110,甲基支链含量为59~62.2%,乙基支链含量为7.5~10.7%,丙基支链及含4个碳以上支链含量为28.6~30.5%。
更优选地,所述支化聚乙烯的重均分子量为30万g/mol,支化度为105,甲基支链含量为61.2%,乙基支链含量为9.5%,丙基支链及含4个碳以上支链含量为29.3%。
优选地,所述乙烯-乙烯醇共聚物的分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1~2%mol的1,2-乙二醇结构。
更优选地,所述乙烯-乙烯醇共聚物的分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构。
本发明另一目的在于提供一种所述可拉伸聚烯烃材料的制备方法,包括如下步骤:
将乙丙共聚物、萜烯树脂、芳香族聚酮、马来酸酐接枝POE、支化聚乙烯和乙烯-乙烯醇共聚物混合,双螺杆挤出机熔融挤出造粒,得可拉伸聚烯烃材料。
优选地,所述熔融的温度为230~250℃。
更优选地,所述熔融的温度为240℃。
优选地,所述挤出的温度为180℃~220℃。
更优选地,所述挤出的温度为200℃。
优选地,所述挤出机的螺杆转速为200~400r/min。
更优选地,所述挤出机的螺杆转速为300r/min。
本发明另一目的在于提供一种免底涂预涂膜用复合膜,所述复合膜由面层、芯层、功能层构成;其中,面层由包括以下质量百分含量的原料制成:均聚聚丙烯100%或聚丙烯复合材料100%;芯层由包括以下质量百分含量的原料制成:均聚聚丙烯80~90%、丙烯基弹性体10~20%;功能层由包括所述可拉伸聚烯烃材料制成。
虽然,支化聚乙烯的支化结构贯穿于各聚合物之间,可增强功能层各物料间的结合力,但支化聚乙烯与均聚聚丙烯的收缩率不同,芯层与功能层共挤后,在长期使用过程中容易产生分层,乙烯-乙烯醇共聚物的加入解决芯层与功能层因均聚聚丙烯与支化聚乙烯收缩率不同而产生的分层。
本发明再一目的在于提供一种所述的免底涂预涂膜用复合膜的制备方法,包括如下步骤:
S1.分别将面层的原料、芯层的原料、功能层的原料混合均匀,加热熔融,过滤,分别得面层熔体、芯层熔体和功能层熔体;
S2.将面层熔体、芯层熔体和功能层熔体共挤出制成片材,片材贴附到激冷辊上冷却形成铸片;
S3.将所述铸片依次经过纵向拉伸、横向拉伸、热定型、冷却,得免底涂预涂膜用复合膜。
优选地,S1中,所述面层的加热熔融挤出温度为230~250℃。
更优选地,S1中,所述面层的加热熔融挤出温度为240℃。
优选地,S1中,所述芯层的加热熔融挤出温度为230~250℃。
更优选地,S1中,所述芯层的加热熔融挤出温度为240℃。
优选地,S1中,所述功能层的加热熔融挤出温度为220~235℃。
更优选地,S1中,所述功能层的加热熔融挤出温度为230℃。
优选地,S2中,所述激冷辊的温度为20~40℃。
更优选地,S2中,所述激冷辊的温度为30℃。
优选地,S3中,所述纵向拉伸的预热温度为100~150℃,拉伸温度为120~135℃,拉伸倍数为4.8~5.3倍。
更优选地,S3中,所述纵向拉伸的预热温度为120℃,拉伸温度为130℃,拉伸倍数为4.8倍。
优选地,S3中,所述横向拉伸的预热温度为160~180℃,拉伸温度为140~160℃,拉伸倍数为7.5~9.0倍。
更优选地,S3中,所述横向拉伸的预热温度为170℃,拉伸温度为150℃,拉伸倍数为9.0倍。
优选地,S3中,所述热定型的温度为165~185℃。
更优选地,S3中,所述热定型的温度为175℃。
具体实施方式
为了使本技术领域的人员更好地理解本发明中的技术方案,下面将结合本发明实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
芳香族聚酮采用阳离子化α-二亚胺钯配合物催化剂体系,催化乙烯基芳烃与一氧化碳通过溶液聚合反应得到。
实施例1:可拉伸聚烯烃材料的制备。
将熔融指数为3.0~4.0g/10min的乙丙共聚物64%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂8%、芳香族聚酮5%、接枝率为1~3%的马来酸酐接枝POE 6%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯6%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物11%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例2:可拉伸聚烯烃材料的制备。
将熔融指数为3.0~4.0g/10min的乙丙共聚物82%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂5%、芳香族聚酮1%、接枝率为1~3%的马来酸酐接枝POE 4%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯3%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物5%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例3:可拉伸聚烯烃材料的制备。
将熔融指数为3.0~4.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例4:可拉伸聚烯烃材料的制备。
将熔融指数为3.0~4.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、重均分子量为30万g/mol,支化度为105,甲基支链含量为61.2%,乙基支链含量为9.5%,丙基支链及含4个碳以上支链含量为29.3%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例5:可拉伸聚烯烃材料的制备。
将熔融指数为1.0~2.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例6:可拉伸聚烯烃材料的制备。
将熔融指数为3.0~4.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元0.65%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例7:可拉伸聚烯烃材料的制备。
将熔融指数为3.0~4.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为0.7~0.9%的马来酸酐接枝POE 5%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
对比例1:可拉伸聚烯烃材料的制备。
与实施例3的区别在于,将实施例3中的支化聚乙烯替换成线性低密度聚乙烯,具体流程如下:
将熔融指数为3.0~4.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、线性低密度聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
对比例2:可拉伸聚烯烃材料的制备。
与实施例3的区别在于芳香族聚酮的结构不同,具体流程如下:
将熔融指数为3.0~4.0g/10min的乙丙共聚物74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为70000~100000g/mol。
对比例3:可拉伸聚烯烃材料的制备。
与实施例3的区别在于,将实施例3中的熔融指数为3.0~4.0g/10min的乙丙共聚物替换成熔融指数为1.0~2.0g/10min的聚丙烯,具体流程如下:
将熔融指数为1.0~2.0g/10min的聚丙烯74%、软化点为60℃和酸值为70mgKOH/g的萜烯树脂6%、芳香族聚酮3%、接枝率为1~3%的马来酸酐接枝POE 5%、重均分子量为10万g/mol,支化度为110,甲基支链含量为52%,乙基支链含量为16.2%,丙基支链及含4个碳以上支链含量为31.8%的支化聚乙烯4%、分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1.48%mol的1,2-乙二醇结构的乙烯-乙烯醇共聚物8%混合,双螺杆挤出机熔融挤出造粒,熔融的温度为240℃,挤出的温度为200℃,挤出机的螺杆转速为300r/min,得可拉伸聚烯烃材料;所述芳香族聚酮的结构式如下所示:
数均分子量为30000~50000g/mol。
实施例8:免底涂预涂膜用复合膜的制备。
所述免底涂预涂膜用复合膜由面层、芯层、功能层构成;
所述面层由以下质量百分含量的原料制成:均聚聚丙烯100%;
所述芯层由以下质量百分含量的原料制成:均聚聚丙烯80%、丙烯基弹性体20%;
所述功能层由以下质量百分含量的原料制成:实施例1制得的可拉伸聚烯烃材料100%;
免底涂预涂膜用复合膜的制备的制备步骤:
S1.分别将面层的原料、芯层的原料、功能层的原料混合均匀,加热熔融,面层的加热熔融挤出温度为240℃;芯层的加热熔融挤出温度为240℃;功能层的加热熔融挤出温度为230℃;过滤,分别得面层熔体、芯层熔体和功能层熔体;
S2.将面层熔体、芯层熔体和功能层熔体共挤出制成片材,片材贴附到温度为30℃的激冷辊上冷却形成铸片;
S3.将所述铸片依次经过纵向拉伸、横向拉伸、热定型、冷却,纵向拉伸的预热温度为120℃,拉伸温度为130℃,拉伸倍数为4.8倍;横向拉伸的预热温度为170℃,拉伸温度为150℃,拉伸倍数为9.0倍;热定型的温度为175℃;得面层的厚度为1μm、芯层的厚度为10μm、功能层的厚度为2μm的免底涂预涂膜用复合膜。
实施例9:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“实施例2制得的可拉伸聚烯烃材料100%”。
实施例10:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“实施例3制得的可拉伸聚烯烃材料100%”。
实施例11:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“实施例4制得的可拉伸聚烯烃材料100%”。
实施例12:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“实施例5制得的可拉伸聚烯烃材料100%”。
实施例13:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“实施例6制得的可拉伸聚烯烃材料100%”。
实施例14:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“实施例7制得的可拉伸聚烯烃材料100%”。
对比例4:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“对比例1制得的可拉伸聚烯烃材料100%”。
对比例5:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“对比例2制得的可拉伸聚烯烃材料100%”。
对比例6:免底涂预涂膜用复合膜的制备。
与实施例8得区别仅在于,将实施例8中的“实施例1制得的可拉伸聚烯烃材料100%”替换成“对比例3制得的可拉伸聚烯烃材料100%”。
将实施例8~14和对比例4~6的免底涂预涂膜用复合膜进行拉伸强度、雾度和阻隔性能测试,并将实施例8~14和对比例4~6的免底涂预涂膜通过挤出涂布(EXTRUSIONCOATING)工艺把EVA分别涂在实施例8~14和对比例4~6免底涂预涂膜的功能层面,得聚烯烃/EVA复合预涂膜,其中,涂布工艺为挤出机的温度为200℃,模头的温度为220℃,在EVA和免底涂预涂膜的功能层面开臭氧处理,EVA涂布厚度为5微米,线速度为150米/分;对聚烯烃/EVA复合预涂膜中免底涂预涂膜与EVA的粘接强度进行性能测试,结果见表1。
拉伸强度测试:参照GB/T 1040.3-2006,雾度测试:参照GB/T 2410-2008;氧透过率:按照GB/T 1038-2000,水透过率:GB/T 1037-2021,BOPP薄膜与EVA粘接强度测试:参照GB/T 8808-1988。
表1.性能测试结果。
由表1可知,本发明制得的免底涂预涂膜用复合膜具有粘接强度高、拉伸强度高、雾度小、阻隔性能好等优点;对比例4在生产免底涂预涂膜用复合膜的过程中,与纵向拉伸辊存在粘连;对比例6在生产免底涂预涂膜用复合膜的过程中,与纵向拉伸辊不存在粘连,但粘接强度不高。
最后应当说明的是,以上实施例仅用以说明本发明的技术方案而非对其限制,尽管参照上述实施例对本发明进行了详细的说明,所属领域的普通技术人员应当理解,技术人员阅读本申请说明书后依然可以对本发明的具体实施方式进行修改或者等同替换,但这些修改或变更均未脱离本发明申请待批权利要求保护范围之内。
Claims (8)
1.一种可拉伸聚烯烃材料,其特征在于,所述可拉伸聚烯烃材料包括如下质量百分含量的原料:乙丙共聚物64~82%、萜烯树脂5~8%、芳香族聚酮1~5%、马来酸酐接枝POE 4~6%、支化聚乙烯3~6%、乙烯-乙烯醇共聚物5~11%;所述芳香族聚酮的分子结构中含有羧基或氨基;所述乙丙共聚物的熔融指数为3.0~4.0g/10min;所述芳香族聚酮的结构式如下所示:
其中,R选自羧基或氨基;数均分子量不低于20000g/mol。
2.如权利要求1所述的可拉伸聚烯烃材料,其特征在于,所述萜烯树脂的软化点为50~70℃,酸值为60~75mgKOH/g。
3.如权利要求1所述的可拉伸聚烯烃材料,其特征在于,所述马来酸酐接枝POE的接枝率为1~3%。
4.如权利要求1所述的可拉伸聚烯烃材料,其特征在于,所述支化聚乙烯的重均分子量为5万~15万g/mol,支化度为100~120,甲基支链含量为50~56%,乙基支链含量为15~18%,丙基支链及含4个碳以上支链含量为27.8~35%。
5.如权利要求1所述的可拉伸聚烯烃材料,其特征在于,所述乙烯-乙烯醇共聚物的分子结构中含占所述乙烯-乙烯醇共聚物分子结构单元1~2%mol的1,2-乙二醇结构。
6.权利要求1~5任一项所述的可拉伸聚烯烃材料的制备方法,其特征在于,包括如下步骤:
将乙丙共聚物、萜烯树脂、芳香族聚酮、马来酸酐接枝POE、支化聚乙烯和乙烯-乙烯醇共聚物混合,双螺杆挤出机熔融挤出造粒,得可拉伸聚烯烃材料。
7.一种免底涂预涂膜用复合膜,其特征在于,所述复合膜由面层、芯层、功能层构成;其中,面层由包括以下质量百分含量的原料制成:均聚聚丙烯100%或聚丙烯复合材料100%;芯层由包括以下质量百分含量的原料制成:均聚聚丙烯80~90%、丙烯基弹性体10~20%;功能层由包括权利要求1~5任一项所述可拉伸聚烯烃材料制成。
8.一种权利要求7所述的免底涂预涂膜用复合膜的制备方法,其特征在于,包括如下步骤:
S1.分别将面层的原料、芯层的原料、功能层的原料混合均匀,加热熔融,过滤,分别得面层熔体、芯层熔体和功能层熔体;
S2.将面层熔体、芯层熔体和功能层熔体共挤出制成片材,片材贴附到激冷辊上冷却形成铸片;
S3.将所述铸片依次经过纵向拉伸、横向拉伸、热定型、冷却,得免底涂预涂膜用复合膜。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311373142.8A CN117430894B (zh) | 2023-10-23 | 2023-10-23 | 一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311373142.8A CN117430894B (zh) | 2023-10-23 | 2023-10-23 | 一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN117430894A CN117430894A (zh) | 2024-01-23 |
CN117430894B true CN117430894B (zh) | 2024-05-14 |
Family
ID=89552673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311373142.8A Active CN117430894B (zh) | 2023-10-23 | 2023-10-23 | 一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN117430894B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109278387A (zh) * | 2018-09-30 | 2019-01-29 | 安徽国风塑业股份有限公司 | 一种高阻隔热封型bopp消光膜及其制备方法 |
CN111253682A (zh) * | 2020-02-28 | 2020-06-09 | 金发科技股份有限公司 | 一种聚丙烯组合物及其制备方法 |
CN115612138A (zh) * | 2022-10-31 | 2023-01-17 | 链行走新材料科技(广州)有限公司 | 一种高阻隔性薄膜、片材或容器及其制备方法 |
CN116376151A (zh) * | 2023-05-15 | 2023-07-04 | 链行走新材料科技(广州)有限公司 | 一种官能化eva材料及其应用 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109337156B (zh) * | 2017-07-25 | 2023-04-11 | 杭州星庐科技有限公司 | 一种聚烯烃组合物及其应用 |
-
2023
- 2023-10-23 CN CN202311373142.8A patent/CN117430894B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109278387A (zh) * | 2018-09-30 | 2019-01-29 | 安徽国风塑业股份有限公司 | 一种高阻隔热封型bopp消光膜及其制备方法 |
CN111253682A (zh) * | 2020-02-28 | 2020-06-09 | 金发科技股份有限公司 | 一种聚丙烯组合物及其制备方法 |
CN115612138A (zh) * | 2022-10-31 | 2023-01-17 | 链行走新材料科技(广州)有限公司 | 一种高阻隔性薄膜、片材或容器及其制备方法 |
CN116376151A (zh) * | 2023-05-15 | 2023-07-04 | 链行走新材料科技(广州)有限公司 | 一种官能化eva材料及其应用 |
Also Published As
Publication number | Publication date |
---|---|
CN117430894A (zh) | 2024-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1151378A (en) | Thermoplastic packaging films with improved heat-seal characteristics | |
CN101391501B (zh) | 纸塑热复合用双向拉伸聚丙烯薄膜及其制造方法 | |
JP3350872B2 (ja) | つや消しの2軸延伸したポリプロピレンフイルム及びその製造法 | |
CN101362388A (zh) | 双向拉伸聚丙烯薄膜及其制备方法 | |
US20140065398A1 (en) | Biaxially oriented bio-based polyolefin film that has been extrusion coated with bio-based sealant for lidding applications | |
CN109532179B (zh) | 一种无底涂剂双向拉伸聚对苯二甲酸乙二醇酯薄膜及其制备方法 | |
CN109263162B (zh) | 一种双向拉伸聚丙烯预涂底材及其制备方法和应用 | |
CN116376151A (zh) | 一种官能化eva材料及其应用 | |
CN117430894B (zh) | 一种可拉伸聚烯烃材料及其在免底涂预涂膜用复合膜中的应用 | |
CN108556440B (zh) | 含表面粗化热复合树脂层的聚丙烯薄膜及其制备方法和应用 | |
CN115284706B (zh) | 一种聚丙烯薄膜及其制备方法和纸塑热复合基材 | |
CN101633258A (zh) | 无胶热复合聚乙烯薄膜及其制备方法 | |
CN112549715A (zh) | 一种可回收液洗小包装膜及其生产工艺 | |
CN111645388A (zh) | 一种共挤型即复纸bopp膜及其制备方法 | |
CN112848580B (zh) | 一种petg/pet共挤自热封多层膜及其制备方法 | |
CN114750496B (zh) | 一种太阳能防火复合背板及其制备方法 | |
CN116042111A (zh) | 一种光伏组件用新型微发泡胶膜及其制备工艺 | |
CN111808552A (zh) | 一种多用途反应型热熔胶及其制造方法 | |
CN113043692B (zh) | 一种自带涂层标签膜及其制备方法 | |
CN114987015B (zh) | 聚丙烯薄膜及其制备方法和纸塑热复合基材 | |
CN114889283B (zh) | 一种高粘结强度免底涂预涂膜用bopet薄膜及其制备方法 | |
CN112874091B (zh) | 一种耐老化、可生物降解的薄膜及其制备方法和应用 | |
CN115635748A (zh) | 一种高强度无胶膜及其制备方法 | |
CN111703162B (zh) | 一种防刮花高阻隔型免底涂剂多层共挤bopp预涂基膜及其制备方法 | |
CN221176247U (zh) | 一种太阳能电池背板及制备系统 |
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 |