CN107973991A - A kind of high obstructing performance polypropene composition and biaxially oriented film prepared therefrom - Google Patents

A kind of high obstructing performance polypropene composition and biaxially oriented film prepared therefrom Download PDF

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Publication number
CN107973991A
CN107973991A CN201610919980.4A CN201610919980A CN107973991A CN 107973991 A CN107973991 A CN 107973991A CN 201610919980 A CN201610919980 A CN 201610919980A CN 107973991 A CN107973991 A CN 107973991A
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CN
China
Prior art keywords
polypropene composition
butene
biaxially oriented
obstructing performance
content
Prior art date
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Pending
Application number
CN201610919980.4A
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Chinese (zh)
Inventor
唐毓婧
施红伟
张艳霞
高达利
盛建昉
蔡小光
郭梅芳
殷建军
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.)
Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
Original Assignee
Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Application filed by Sinopec Beijing Research Institute of Chemical Industry, China Petroleum and Chemical Corp filed Critical Sinopec Beijing Research Institute of Chemical Industry
Priority to CN201610919980.4A priority Critical patent/CN107973991A/en
Publication of CN107973991A publication Critical patent/CN107973991A/en
Pending legal-status Critical Current

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    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/14—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
    • 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
    • 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
    • C08J2323/14—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
    • 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
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/10—Transparent films; Clear coatings; Transparent materials
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

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  • 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)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The invention discloses a kind of high obstructing performance polypropene composition and biaxially oriented film prepared therefrom.The polypropene composition is to be blended by the raw material including following components and obtained：1 random copolymer of propylene butene, 100 parts by weight；0.1~20 parts by weight of polyvinyl resin；1 content of butylene is 0.5~7.5mol% in 1 random copolymer of propylene butene.The biaxially oriented film of the polypropene composition of the present invention, compared with prior art, has the barrier property of higher, and keeps low migration thing content, especially high rigidity, food and pharmaceutical packing.

Description

A kind of high obstructing performance polypropene composition and biaxially oriented film prepared therefrom
Technical field
The present invention relates to compositions field, further says, be related to a kind of high obstructing performance polypropene composition and by Its biaxially oriented film prepared.
Background technology
It is well known that polypropylene film is widely used in packaging field due to its excellent mechanics and processing performance. The polypropylene film of particularly stretched orientation, such as Biaxially oriented polypropylene (BOPP), due to its with nontoxic, high-stiffness, The features such as high transparency and high gloss, and it is widely used in the packaging of the products such as food, medicine, cigarette.BOPP is in film There is the laudatory title of " packaging queen " in packaging field.
In supermarket, the fruits and vegetables now cut needs to keep freshness, quality and shelf life.Document (vanden Berg,1981；Ayala-Zavala et al., 2008) loss for reducing vapor is illustrated, maintain high water vapour content can Wilted with slowing down food and extend the service life of storage.Therefore for the BOPP film for packaging for foodstuff, vapor water barriers Performance is a key factor.
At present in high-isolation film, PVDC or EVOH and polyolefin coextruded film occupy an leading position.But PVDC does not allow Easily molded processing, recovery and reuse of waste is relatively difficult, and burning disposal can produce the HCL gases for endangering air, be subject to environmentally friendly people The opposition of scholar, some countries in Europe belong to disabling material；EVOH is expensive, its application at present is still confined to thin to packing Film barrier requires high, the of a relatively high commodity of price.In addition, composite membrane in preparation process, is also subject to the shadow of many factors Ring, such as bondability, mobility etc.；It it is possible to additionally incorporate barrier film and there are problems that influence to the mechanical property of matrix.Therefore It is the problem of needing concern to further improve the barrier property of polyolefin in itself.
US5433983, US5429862 (1993) report a kind of heat-sealing polypropylene film of biaxial tension, among it Layer is polypropylene, and outer layer is propylene-ethylene copolymers, or propene-1-butene copolymer, or propylene-ethylene-butene copolymer, should Film has the characteristics that high water vapor and oxygen-barrier property.US5595827 (nineteen ninety-five) reports the polypropylene material of high isotactic Material and hydrocarbon resin blend, stretched film have the characteristics that high water vapor barrier.US6458470 (1999) reports one The polypropylene multi-layer film that with metallocene catalyst produces of the kind containing Ziegler-Natta catalyst production has high barrier. The polypropylene film of external patent report biaxial tension has high water vapor barrier, but its effect cannot still make us full Meaning.
In view of above-mentioned prior art situation, this area still need to exploitation high water vapor barrier BOPP film be used for food and Pharmaceutical packing.
The content of the invention
To solve produced problem in the prior art, the present invention provides a kind of high obstructing performance polypropene composition and by Its biaxially oriented film prepared.Said composition film has the characteristics of high water vapor barrier property, low migration thing content concurrently, and still Keep high-stiffness and high transparency.It is particularly suitable for the food to moisture-sensitive and pharmaceutical packing.
An object of the present invention is to provide a kind of high obstructing performance polypropene composition.
The polypropene composition is to be blended by the raw material including following components and obtained：
100 parts by weight of the random copolymer of propene-1-butene -1；
0.1~20 parts by weight of polyvinyl resin；
Butene-1 content is 0.5~7.5mol% in the random copolymer of propene-1-butene -1.
Butene-1 content in the random copolymer of propene-1-butene -1 can influence polyacrylic crystallinity, and butene-1 content is got over Height, polypropylene crystallinity is lower, and the transparency of material is better, but butene-1 content is too high, can equally bring migration thing content Excessive, butene-1 content is too low too high it will cause crystallinity, influences the transparency, and the present invention preferably goes out butene-1 content through testing 0.5~7.5mol%, more preferably 1~6mol%, further preferred 1.5~5mol%.Melt flow rate (MFR) is：2~4g/ 10min。
Polyvinyl resin, preferably high density polyethylene (HDPE).The dosage of polyvinyl resin is 0.1~20 parts by weight, preferably 1~15 Parts by weight, more preferably 1~10 parts by weight, can while high water vapor barrier property is obtained, still keep high transparency and just Property.
The second object of the present invention is to provide a kind of two-way drawing prepared by the high obstructing performance polypropene composition Stretch film.
Preparation method：Using a diameter of 30mm double screw extruders, polyvinyl resin is added in the third fourth copolymer resin Blending.The slab of 0.7mm or so is made on Labtech three-layer co-extrusion tape casting machines.It is two-way using German Bruckner Karo IV Stretching-machine, substep biaxial tension 5X7.About 23 μm of biaxially oriented film thickness.
The composition of the present invention also has following technical characteristic：
(1) melt index (230 DEG C/2.16kg) 0.5~30g/10min, preferably 3~10g/10min.
(2) n-hexane extract is less than 1.5g/100g, preferably smaller than 1.2g/100g, more preferably less than 1.0g/100g.
The biaxially oriented film of the polypropene composition of the present invention, compared with prior art, has the barrier property of higher, And keep low migration thing content, especially high rigidity, food and pharmaceutical packing.
Embodiment
With reference to embodiment, the present invention is further illustrated.
The scope of the present invention is not restricted by the embodiments, and the scope of the present invention proposes in detail in the claims.
Related data in embodiment are obtained by following test method：
1. butene-1 content.Measured using method of infrared spectrophotometry, select wave number in 770cm-1Absworption peak it is special for butene-1 Levy peak.
2. n-hexane extract.Measured by GB/T5009.58.
3. melt index (MFR).By being measured under ASTMD1238,230 DEG C, 2.16kg load.
4. film light transmittance.Measured by GB/T2410-2008.
5. film stretch modulus, tensile break strength.Measured by GB/T13022-1991.
6. moisture-vapor transmission.Measured by GB/T 21529-2008.
Embodiment 1：
Component (A) in the embodiment of the present invention uses the third fourth random copolymerization of Shanghai Petrochemical Co. Ltd.'s production Thing (product grade F280B), the third fourth polymer butene content 4mol%；Component (B) is high-density polyethylene resin.In blend F280B is 100 parts by weight, and high density polyethylene (HDPE) is 3 parts by weight.Said mixture utilizes the sheet material bar extruder of a diameter of 30mm In 230 DEG C of meltings, cast film is squeezed into, which cools down on 50 DEG C of chill roll, forms the casting films of 0.7mm.Using Germany Bruckner Karo IV two-way stretch devices, in 5 times of the sheet material longitudinal stretching that 155 DEG C will obtain, then laterally draw at 165 DEG C 7 times are stretched, it is thin to obtain the biaxial tension that thickness is 23 ± 3 μm.The correlated performance of film is measured, is shown in Table 1.
Embodiment 2：
With embodiment 1, simply high-density polyethylene resin content is 6 parts by weight.The correlated performance of film is measured, is shown in Table 1.
Comparative example：
The biaxially oriented film of the random thing of third fourth (F280B), film drawing process is the same as embodiment 1.Measure the correlation of film Performance, is shown in Table 1.
Table 1
The polypropene composition of the present invention, Biaxially oriented polypropylene prepared therefrom are thin it can be seen from data more than Film has the characteristics that high water vapor barrier property, low migration thing content, and still keeps high-stiffness and high transparency, is highly suitable for Food and pharmaceutical packing to moisture-sensitive.

Claims (7)

1. a kind of high obstructing performance polypropene composition, it is characterised in that the polypropene composition is by including following components Raw material is blended and obtains：
100 parts by weight of the random copolymer of propene-1-butene -1；
0.1~20 parts by weight of polyvinyl resin；
Butene-1 content is 0.5~7.5mol% in the random copolymer of propene-1-butene -1.
2. high obstructing performance polypropene composition as claimed in claim 1, it is characterised in that：
Butene-1 content is 1~6mol%.
3. high obstructing performance polypropene composition as claimed in claim 2, it is characterised in that：
Butene-1 content is 1.5~5mol%.
4. high obstructing performance polypropene composition as claimed in claim 1, it is characterised in that：
The melt flow rate (MFR) of the polypropene composition is：2~4g/10min.
5. high obstructing performance polypropene composition as claimed in claim 1, it is characterised in that：
Polyvinyl resin is high-density polyethylene resin；
Dosage is 1~15 parts by weight.
6. high obstructing performance polypropene composition as claimed in claim 5, it is characterised in that：
The dosage of polyvinyl resin is 1~10 parts by weight.
A kind of 7. biaxially oriented film prepared by high obstructing performance polypropene composition as described in one of claim 1~6.
CN201610919980.4A 2016-10-21 2016-10-21 A kind of high obstructing performance polypropene composition and biaxially oriented film prepared therefrom Pending CN107973991A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1195674A (en) * 1997-04-07 1998-10-14 三井化学株式会社 Laminating propylene/ 1-butene random copolymer composition and composite film using the same
CN1285855A (en) * 1997-10-31 2001-02-28 金伯利-克拉克环球有限公司 Breathable films and process for producing them
WO2001030907A1 (en) * 1999-10-28 2001-05-03 Applied Extrusion Technologies , Inc. Films based on three component polyolefin blend
CN103087419A (en) * 2011-10-28 2013-05-08 中国石油化工股份有限公司 Polypropylene composition, and stretch film prepared through using it
CN103524882A (en) * 2013-10-29 2014-01-22 大韩道恩高分子材料(上海)有限公司 Polyolefin resin composition with lusterless characteristic
CN105504527A (en) * 2015-12-07 2016-04-20 安陆市鑫鑫机械设备有限公司 High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof
WO2016107830A1 (en) * 2014-12-30 2016-07-07 Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. Polypropylene compound with improved optical property and gel level

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1195674A (en) * 1997-04-07 1998-10-14 三井化学株式会社 Laminating propylene/ 1-butene random copolymer composition and composite film using the same
CN1285855A (en) * 1997-10-31 2001-02-28 金伯利-克拉克环球有限公司 Breathable films and process for producing them
WO2001030907A1 (en) * 1999-10-28 2001-05-03 Applied Extrusion Technologies , Inc. Films based on three component polyolefin blend
CN103087419A (en) * 2011-10-28 2013-05-08 中国石油化工股份有限公司 Polypropylene composition, and stretch film prepared through using it
CN103524882A (en) * 2013-10-29 2014-01-22 大韩道恩高分子材料(上海)有限公司 Polyolefin resin composition with lusterless characteristic
WO2016107830A1 (en) * 2014-12-30 2016-07-07 Abu Dhabi Polymers Co. Ltd (Borouge) L.L.C. Polypropylene compound with improved optical property and gel level
CN105504527A (en) * 2015-12-07 2016-04-20 安陆市鑫鑫机械设备有限公司 High-temperature steaming resistant and quick freezing resistant food packaging material and preparation method thereof

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Application publication date: 20180501