CN108794898A - Coat polypropene composition and preparation method thereof - Google Patents
Coat polypropene composition and preparation method thereof Download PDFInfo
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- CN108794898A CN108794898A CN201710295083.5A CN201710295083A CN108794898A CN 108794898 A CN108794898 A CN 108794898A CN 201710295083 A CN201710295083 A CN 201710295083A CN 108794898 A CN108794898 A CN 108794898A
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- coating
- polypropene composition
- polypropene
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- metallocene
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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
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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
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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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)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to technical field of plastic package, and in particular to a kind of coating polypropene composition and preparation method thereof.The coating polypropene composition, including a kind of atactic copolymerized polypropene, a kind of metallocene PE and adjuvant system.The present invention is by selecting high ethylene contents, the third atactic copolymerized polypropene of second and distribution of low molecular weight of distribution of low molecular weight, the metallocene PE of low-density, and by improving its preparation process, using first to polypropylene progress mixing granulation, again with the preparation process of the two-step method of polyethylene mixing granulation, the coating polypropene composition of acquisition is set to have wholesomeness good, heat seal strength is high, heat-sealing temperature is low, it is fast to seal speed, it is fast to coat process velocity, processing is stablized, coating is uniform and thin, the advantageous features such as smell is low, it is widely used in the fields such as the food packaging of high request, substantially increase production efficiency and product quality.
Description
Technical field
The invention belongs to technical field of plastic package, and in particular to a kind of coating polypropene composition and preparation method thereof.
Background technology
Polypropylene is compounded in the surface of the products such as brown paper, woven bag, plastic film, pipeline by coating processing, is formed
Uniform layer protecting film, can make its played in packing article or trandfer fluid sealing, anticorrosion, improve heat seal strength and
The effects that wrapper mechanical strength.The application of polypropylene coat has compared with conventional double is packed and saves raw material, simplifies behaviour
The advantages that making process, reducing the wholesomeness of product packaged by damaged, the better protection of packaging bag, extend shelf life, is current
The application trend of packaging field has irreplaceable role.
Coating grade polypropylene is mainly used in the internal layer of woven product, brown paper and food packing film.Braiding system
Product etc. require acrylic resin to have good mobility and film forming, it is made to disclosure satisfy that good bonding in packing use
Property, corrosion resistance, heat-resisting quantity, waterproof, moisture-proof, intensity is high, can pack the requirements such as powdered rubber.Such polypropylene
Resin is generally homopolymerization coating grade polypropylene, and application at home and abroad is very universal.With the development of the market demand,
The market demand of the polypropylene coated on film internal layer surface for food packaging is more and more, such as instant noodles packaging, potato chips packaging
Etc., it is good wholesomeness that the technology of this packaging film, which requires, free from extraneous odour, heat sealability is good, coating process velocity is fast, coating processing is steady
It is fixed, coating is thin etc..
In the prior art, certain improvement has been carried out to coating polyacrylic preparation method, as 103740185 A of CN are public
A kind of novel atactic copolymerized polypropene coating material of cloth, by selecting homopolymerization and the two kinds high melting means masterbatch of copolymerization and suitable
Polyethylene auxiliary material carries out mixture, has processed environmentally friendly (without using chemical degradation agent), mechanical performance high (such as peel strength, punching
Hit intensity), prepare easy coating material；But do not illustrate implementation result in terms of heat-sealing temperature and heat-sealing speed.
In the document " copolymerization grade coats polyacrylic research " that Huang Cheng etc. writes, atactic copolymerized polypropene and LDPE are used
The method of blending so that the heat-sealing temperature of coating film decreases, but does not show advantage in coating film-strength.
Therefore, it is necessary in view of the deficiencies of the prior art, invent a kind of high-performance, can meet modern industrial production quickly,
Efficiently wait the coating polypropene composition of requirements.
Invention content
The present invention is directed in view of the deficiencies of the prior art, provide, a kind of wholesomeness is good, intensity is high, heat-sealing temperature is low, heat-sealing
The coating polypropene composition and preparation method thereof that speed is fast, coating production efficiency is high, coating processing is stable.
A kind of coating polypropene composition, including a kind of atactic copolymerized polypropene, a kind of metallocene PE and auxiliary agent
System.
The weight ratio of atactic copolymerized polypropene and metallocene PE is 90-80:10-20.
The atactic copolymerized polypropene is the random copolymer of ethylene and propylene.
To reach the promotion of paintability, the amount of vinyl monomer is more than 4%, and molecular weight distribution is less than 4, melt quality
Flow rate 30-35g/10min.
Metallocene PE the melt mass flow rate 1-2g/10min, density 0.918-0.921g/cm3,
Molecular weight distribution 2.5-3.7.The molecular weight distribution of the characteristics of due to metallocene catalyst single active center, product are more poly-
Ethylene is narrower.
The adjuvant system includes antioxidant 1010 and 168, calcium stearate and single stearic acid glycerine lipoprotein, in the composition
Dosage is：Antioxidant 1010 is 500-1000ppm, 168 is 500-1000ppm, calcium stearate 300-800ppm, monostearate
Glyceride is 200-500ppm.
The preparation method of the coating polypropene composition, atactic copolymerized polypropene is squeezed after mixing with adjuvant system
Go out to be granulated, be granulated after then being mixed with metallocene PE, you can obtains coating polypropene composition.
Extruding pelletization is carried out using double screw extruder.
The preparation process of two-step method further improves the uniformity of product, and coating processing stability is made to greatly improve.
Compared with prior art, the present invention has following excellent technique effect：
The present invention is divided by the third atactic copolymerized polypropene of second and low molecular weight for selecting high ethylene contents, distribution of low molecular weight
The metallocene PE of cloth, low-density, and by improving its preparation process, using first to polypropylene carry out mixing granulation, again with
The preparation process of the two-step method of polyethylene mixing granulation, so that the coating polypropene composition of acquisition is had, wholesomeness is good, heat-sealing is strong
Degree is high, heat-sealing temperature is low, heat-sealing speed is fast, coating process velocity is fast, processing is stablized, coating is uniform and thin, smell is low etc.
Advantageous feature is widely used in the fields such as the food packaging of high request, substantially increases production efficiency and product quality.
Specific implementation mode
The invention will be further described by the following examples.
Embodiment 1-3 raw materials composition is shown in Table 1, and the present invention is coated on the processing of BOPP film and behavior pattern is also shown in Table 1.
Wherein used atactic copolymerized polypropene molecular weight distribution is 3.8, MFR 31g/10min, comonomer ethylene
Amount be 4.2%；The metallocene PE MFR used is 1.8g/10min, molecular weight distribution 3.6.Preparation method is, first by nothing
Extruding pelletization after rule copolymer polypropylene is mixed with adjuvant system, is squeezed after being then uniformly mixed again with metallocene PE through twin-screw
Go out to be granulated, obtains the invention coating polypropene composition.
In terms of the effect of embodiment, the present invention makes coating processing speed by selecting low molecule distribution, forming uniform material
Degree, coating uniformity etc. greatly improve, peeling force significantly improves, and the atactic copolymerized polypropene and metallocene of high ethylene contents are poly-
Being used in combination of ethylene makes that film heat-sealing temperature is low, the heat-sealing time is short, substantially increases heat-sealing efficiency.
1 embodiment 1-3 raw materials of table form and performance
Remarks：Adjuvant system group becomes：Antioxidant 1010 and 168 each 1000ppm, calcium stearate 500ppm, monostearate
Glyceride 300ppm.
2 comparative example 1-4 raw materials of table form and performance
Metallocene PE, atactic copolymerized polypropene and the adjuvant system used in comparative example 1-4 and phase in embodiment
Together.
3 comparative example 5-7 raw materials of table form and performance
Embodiment compared with comparative example, have faster process velocity, lower heat-sealing temperature, faster seal speed,
Smaller odor profiles and coating uniformity.
Claims (9)
1. a kind of coating polypropene composition, which is characterized in that including a kind of atactic copolymerized polypropene, a kind of metallocene PE
And adjuvant system.
2. a kind of coating polypropene composition according to claim 1, which is characterized in that atactic copolymerized polypropene and cyclopentadienyl gold
The weight ratio for belonging to polyethylene is 90-80:10-20.
3. a kind of coating polypropene composition according to claim 1 or 2, which is characterized in that the random copolymerization is poly-
Propylene is the random copolymer of ethylene and propylene.
4. a kind of coating polypropene composition according to claim 3, which is characterized in that the amount of vinyl monomer is more than 4%,
Its molecular weight distribution is less than 4, melt mass flow rate 30-35g/10min.
5. a kind of coating polypropene composition according to claim 1 or 2, which is characterized in that the poly- second of the metallocene
Alkene melt mass flow rate 1-2g/10min, density 0.918-0.921g/cm3, molecular weight distribution 2.5-3.7.
6. a kind of coating polypropene composition according to claim 1 or 2, which is characterized in that the adjuvant system includes
Antioxidant 1010 and 168, calcium stearate and single stearic acid glycerine lipoprotein.
7. a kind of coating polypropene composition according to claim 6, which is characterized in that antioxidant 1010 500-
1000ppm, 168 are 500-1000ppm, calcium stearate 300-800ppm, single stearic acid glycerine lipoprotein 200-500ppm.
8. a kind of preparation method coating polypropene composition as described in claim 1-7 any one, which is characterized in that by nothing
Copolymer polypropylene and adjuvant system extruding pelletization after mixing are advised, is granulated after then being mixed with metallocene PE, i.e.,
It can get coating polypropene composition.
9. coating the preparation method of polypropene composition according to claim 8, which is characterized in that use double screw extruder
Carry out extruding pelletization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710295083.5A CN108794898A (en) | 2017-04-28 | 2017-04-28 | Coat polypropene composition and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710295083.5A CN108794898A (en) | 2017-04-28 | 2017-04-28 | Coat polypropene composition and preparation method thereof |
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| CN201710295083.5A Pending CN108794898A (en) | 2017-04-28 | 2017-04-28 | Coat polypropene composition and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020223055A1 (en) * | 2019-04-29 | 2020-11-05 | Chevron Phillips Chemical Company Lp | Additive systems containing an antioxidant and a glycerol stearate for improved color in polyethylene resins |
| RU2813479C2 (en) * | 2019-04-29 | 2024-02-12 | Шеврон Филлипс Кемикал Компани Лп | Additive systems containing antioxidant and glycerine stearate for improving color of polyethylene resins |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0952328A (en) * | 1995-08-18 | 1997-02-25 | Mitsui Toatsu Chem Inc | Polyolefin laminated material |
| CN1355825A (en) * | 1999-06-17 | 2002-06-26 | 陶氏化学公司 | Polymer compositions which exhibit high hot tack |
| JP2002363356A (en) * | 2001-06-04 | 2002-12-18 | Grand Polymer Co Ltd | Polypropylene resin composition for extrusion coating |
| US7217767B2 (en) * | 2004-07-06 | 2007-05-15 | Fina Technology, Inc. | Blends of polypropylene impact copolymer with other polymers |
| CN101831106A (en) * | 2010-05-10 | 2010-09-15 | 宁波市青湖弹性体科技有限公司 | Thermoplastic elastic self-sealing film and preparation method thereof |
| CN104441866A (en) * | 2014-11-19 | 2015-03-25 | 宿州市紫金塑业有限公司 | Ultra-bright and ultra-hard special bag making film |
| CN106554570A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | High transparency heat-proof impact-resistant polypropene composition and preparation method thereof |
-
2017
- 2017-04-28 CN CN201710295083.5A patent/CN108794898A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0952328A (en) * | 1995-08-18 | 1997-02-25 | Mitsui Toatsu Chem Inc | Polyolefin laminated material |
| CN1355825A (en) * | 1999-06-17 | 2002-06-26 | 陶氏化学公司 | Polymer compositions which exhibit high hot tack |
| JP2002363356A (en) * | 2001-06-04 | 2002-12-18 | Grand Polymer Co Ltd | Polypropylene resin composition for extrusion coating |
| US7217767B2 (en) * | 2004-07-06 | 2007-05-15 | Fina Technology, Inc. | Blends of polypropylene impact copolymer with other polymers |
| CN101831106A (en) * | 2010-05-10 | 2010-09-15 | 宁波市青湖弹性体科技有限公司 | Thermoplastic elastic self-sealing film and preparation method thereof |
| CN104441866A (en) * | 2014-11-19 | 2015-03-25 | 宿州市紫金塑业有限公司 | Ultra-bright and ultra-hard special bag making film |
| CN106554570A (en) * | 2015-09-30 | 2017-04-05 | 中国石油化工股份有限公司 | High transparency heat-proof impact-resistant polypropene composition and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020223055A1 (en) * | 2019-04-29 | 2020-11-05 | Chevron Phillips Chemical Company Lp | Additive systems containing an antioxidant and a glycerol stearate for improved color in polyethylene resins |
| CN113330064A (en) * | 2019-04-29 | 2021-08-31 | 切弗朗菲利浦化学公司 | Additive system comprising an antioxidant and glyceryl stearate for improving the colour of polyethylene resins |
| RU2813479C2 (en) * | 2019-04-29 | 2024-02-12 | Шеврон Филлипс Кемикал Компани Лп | Additive systems containing antioxidant and glycerine stearate for improving color of polyethylene resins |
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Application publication date: 20181113 |
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