CN108641196A - A kind of flexible package is modified CPP films and its production method - Google Patents

A kind of flexible package is modified CPP films and its production method Download PDF

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CN108641196A
CN108641196A CN201810464189.8A CN201810464189A CN108641196A CN 108641196 A CN108641196 A CN 108641196A CN 201810464189 A CN201810464189 A CN 201810464189A CN 108641196 A CN108641196 A CN 108641196A
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raw material
homopolymerization
metallocene
bimodal
copolymerization
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刘佳兴
隋林州
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Hebei Taida Packing Material Co Ltd
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Hebei Taida Packing Material Co Ltd
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    • 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
    • C08L23/10—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
    • 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
    • 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
    • C08J2423/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

The present invention relates to thin film technique fields, and disclose that a kind of flexible package is modified CPP films and its production method includes the following steps 1) selection：Select homopolymerization PP 25 45%, copolymerization PP60 80%, slipping agent 5 15%, acrylic 10 30%, PP resins 50 75%, bimodal PE20 30%, metallocene 40 70%, mPE5 20%, nano silicon dioxide 35 45%；2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are stirred mixing in proportion, the raw material in stirring pool is once stirred every half an hour, mixing time is 5 minutes；The flexible package is modified CPP films and its production method, by select specific homopolymerization PP, copolymerization, slipping agent, acrylic, PP resins, bimodal PE, metallocene, mPE, nano silicon dioxide raw material after, it mixed, squeezed, being melted, is plasticized, being cooled down and stripping and slicing, so that flexible package is modified CPP films, to have resistance to low temperature good, ensure the advantages that deflection and intensity do not decline substantially, and film clarity is high.

Description

A kind of flexible package is modified CPP films and its production method
Technical field
The present invention relates to thin film technique field, specially a kind of flexible package is modified CPP films and its production method.
Background technology
China's polypropylene casting film be started in the 1980s, just start by foreign countries introduce single layer casting apparatus, it is wide Only 1-1.5m, about 1000-1500 tons/platform of annual production capacity, into the nineties, from Austrian Lenzin company, Mitsubishi weight Work, Germany Reifenhauser, W＆H, Italy Colines, Dolci, U.S. Battenfeld etc. have introduced multi-layer co-extruded stream Prolong film production line, wide 2-2.5m, 3000-4000 tons/platform of annual production capacity has been even more to advance by leaps and bounds since 2000, has introduced more For advanced production line, wide 4-4.5m, the multi-layer co-extruded cast film line of 5000-6000 tons/platform of annual production capacity.Meanwhile Home equipment also obtains fast speed development, and domestic 5.0 meters of production lines have also appeared on the market within 2011.Have to 2011 end of the year cast films Nearly 1,100,000 tons of production capacity, the market demand is close to 900,000 tons.CPP films have evolved into one of most important packing film.
But common CPP films are produced using homopolypropylene and binary, ternary polymerized polypropylene, due to polyacrylic resistance to Poor performance at low temperatures, while can not guarantee deflection and intensity, common CPP film clarities are poor.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of flexible packages to be modified CPP films and its production method, has Resistance to low temperature is good, ensures the advantages that deflection and intensity do not decline substantially, and film clarity is high, and it is poor to solve resistance to low temperature, It can not ensure that deflection and intensity do not decline substantially, the problem of common CPP film clarity differences.
(2) technical solution
To achieve the above object, the present invention provides the following technical solutions：A kind of flexible package is modified CPP films and its producer Method includes the following steps：
1) selection：Select homopolymerization PP 25-45%, copolymerization PP60-80%, slipping agent 5-15%, acrylic 10-30%, PP Resin 50-75%, bimodal PE20-30%, metallocene 40-70%, mPE5-20%, nano silicon dioxide 35-45%；
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing；
Preferably, include the raw material of following parts by weight proportioning：Homopolymerization PP 25%, copolymerization PP60%, slipping agent 5%, third Alkenyl 10%, PP resins 50%, bimodal PE20%, metallocene 40%, mPE5%, nano silicon dioxide 35%.
Preferably, include the raw material of following parts by weight proportioning：Homopolymerization PP 30%, copolymerization PP70%, slipping agent 9%, third Alkenyl 13%, PP resins 60%, bimodal PE22%, metallocene 51%, mPE10%, nano silicon dioxide 39%.
Preferably, include the raw material of following parts by weight proportioning：Include the raw material of following parts by weight proportioning：Homopolymerization PP 44%, be copolymerized PP75%, slipping agent 16%, acrylic 28%, PP resins 59%, bimodal PE29%, metallocene 63%, MPE13%, nano silicon dioxide 38%.
Preferably, include the raw material of following parts by weight proportioning：Homopolymerization PP 27%, copolymerization PP77%, slipping agent 18%, Acrylic 24%, PP resins 44%, bimodal PE24%, metallocene 54%, mPE14%, nano silicon dioxide 34%.
Preferably, include the raw material of following parts by weight proportioning：Homopolymerization PP 27%, copolymerization PP66%, slipping agent 17%, third Alkenyl 16%, PP resins 55%, bimodal PE22%, metallocene 55%, mPE6%, nano silicon dioxide 36%.
Preferably, include the raw material of following parts by weight proportioning：Homopolymerization PP 22%, copolymerization PP67%, slipping agent 18%, third Alkenyl 18%, PP resins 56%, bimodal PE23%, metallocene 61%, mPE8%, nano silicon dioxide 40%
(3) advantageous effect
Compared with prior art, the present invention provides a kind of flexible packages to be modified CPP films and its production method, has following Advantageous effect：
1, the flexible package is modified CPP films and its production method, by selecting specific homopolymerization PP, copolymerization, slipping agent, propylene Base, PP resins, bimodal PE, metallocene, mPE, nano silicon dioxide raw material after, mixed, squeezed, being melted, is plasticized, is cold But and stripping and slicing so that flexible package is modified CPP films, and to have a resistance to low temperature good, ensures that deflection and intensity do not decline substantially, film The advantages that transparency is high.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.
Embodiment one：
1) selection：Select homopolymerization PP 25%, copolymerization PP60%, slipping agent 5%, acrylic 10%, PP resins 50%, bimodal PE20%, metallocene 40%, mPE5%, nano silicon dioxide 35%.；
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing；
Embodiment two：
1) selection：Select homopolymerization PP 30%, copolymerization PP70%, slipping agent 9%, acrylic 13%, PP resins 60%, double Peak PE22%, metallocene 51%, mPE10%, nano silicon dioxide 39%；
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
Embodiment three：
1) selection：Selection includes the raw material of following parts by weight proportioning：Homopolymerization PP 44%, copolymerization PP75%, slipping agent 16%, acrylic 28%, PP resins 59%, bimodal PE29%, metallocene 63%, mPE13%, nano silicon dioxide 38%
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing；
Experimental example four：
1) selection：Selection includes the raw material of following parts by weight proportioning：Homopolymerization PP 44%, copolymerization PP75%, slipping agent 16%, acrylic 28%, PP resins 59%, bimodal PE29%, metallocene 63%, mPE13%, nano silicon dioxide 38%
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing；
Experimental example five：
1) selection：Selection includes the raw material of following parts by weight proportioning：Homopolymerization PP 27%, copolymerization PP66%, slipping agent 17%, acrylic 16%, PP resins 55%, bimodal PE22%, metallocene 55%, mPE6%, nano silicon dioxide 36%.%
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing；
Experimental example six
1) selection：Selection includes the raw material of following parts by weight proportioning：Homopolymerization PP 22%, copolymerization PP67%, slipping agent 18%, acrylic 18%, PP resins 56%, bimodal PE23%, metallocene 61%, mPE8%, nano silicon dioxide 40%；
2) it mixes：PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization are pressed Ratio is stirred mixing, is once stirred to the raw material in stirring pool every half an hour, and mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then by the raw material after extruding It takes out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, melting time 1- 3 hours, processing time is interior, and as occurred, temperature was not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior through adding Heat reaches plasticizing forming after flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is kept At -17 DEG C；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing；
The beneficial effects of the invention are as follows：The flexible package is modified CPP films and its production method, by selecting specific homopolymerization PP, copolymerization, slipping agent, acrylic, PP resins, bimodal PE, metallocene, mPE, nano silicon dioxide raw material after, mixed Close, squeeze, melting, plasticizing, cooling and stripping and slicing so that flexible package is modified CPP films, and to have a resistance to low temperature good, ensure deflection and The advantages that intensity does not decline substantially, and film clarity is high.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (7)

1. a kind of flexible package is modified CPP films and its production method, which is characterized in that include the following steps：
1) selection：Select homopolymerization PP 25-45%, copolymerization PP60-80%, slipping agent 5-15%, acrylic 10-30%, PP resin 50-75%, bimodal PE20-30%, metallocene 40-70%, mPE5-20%, nano silicon dioxide 35-45%；
2) it mixes：In proportion by PP resins, bimodal PE, acrylic, metallocene, nano silicon dioxide, slipping agent, homopolymerization, copolymerization It is stirred mixing, the raw material in stirring pool is once stirred every half an hour, mixing time is 5 minutes；
3) it squeezes：Mixed raw material in proportion is incited somebody to action, extruder is put into and carries out extruding work, then take the raw material after extruding Go out；
4) it melts：Raw material after extruding are put into temperature in the melting furnace between 165-185 DEG C, the melting time is that 1-3 is small When, processing time is interior, and as occurred, temperature is not up to standard or processing time is not up to standard, then is considered as waste material and re-works；
5) it is plasticized：Raw material taking-up after melting is put into plasticizing bucket, then plasticiser is added in plasticizing bucket, it is interior heated to reach Plasticizing forming after to flow regime；
7) cooling：Raw material after plasticizing forming are put into cooler bin and are cooled down, and the temperature in cooler bin is maintained at -17 ℃；
6) stripping and slicing：Raw material after cooling are taken out and carry out stripping and slicing.
2. a kind of flexible package according to claim 1 is modified CPP films and its production method, which is characterized in that the packet Include the raw material of following parts by weight proportioning：Homopolymerization PP 25%, copolymerization PP60%, slipping agent 5%, acrylic 10%, PP resins 50%, bimodal PE20%, metallocene 40%, mPE5%, nano silicon dioxide 35%.
3. planting a kind of flexible package according to claim 1 is modified CPP films and its production method, which is characterized in that the packet Include the raw material of following parts by weight proportioning：Homopolymerization PP 30%, copolymerization PP70%, slipping agent 9%, acrylic 13%, PP resins 60%, bimodal PE22%, metallocene 51%, mPE10%, nano silicon dioxide 39%.
4. a kind of flexible package according to claim 1 is modified CPP films and its production method, which is characterized in that including with The raw material of lower parts by weight proportioning：The raw material for including following parts by weight proportioning：Homopolymerization PP 44%, copolymerization PP75%, cunning Refreshing agent 16%, acrylic 28%, PP resins 59%, bimodal PE29%, metallocene 63%, mPE13%, nano silicon dioxide 38%.
5. a kind of flexible package according to claim 1 is modified CPP films and its production method, which is characterized in that the packet Include the raw material of following parts by weight proportioning：Homopolymerization PP 27%, copolymerization PP77%, slipping agent 18%, acrylic 24%, PP resins 44%, bimodal PE24%, metallocene 54%, mPE14%, nano silicon dioxide 34%.
6. a kind of flexible package according to claim 1 is modified CPP films and its production method, which is characterized in that the packet Include the raw material of following parts by weight proportioning：Homopolymerization PP 27%, copolymerization PP66%, slipping agent 17%, acrylic 16%, PP resins 55%, bimodal PE22%, metallocene 55%, mPE6%, nano silicon dioxide 36%.
7. a kind of flexible package according to claim 1 is modified CPP films and its production method, which is characterized in that the packet Include the raw material of following parts by weight proportioning：Homopolymerization PP 22%, copolymerization PP67%, slipping agent 18%, acrylic 18%, PP resins 56%, bimodal PE23%, metallocene 61%, mPE8%, nano silicon dioxide 40%.
CN201810464189.8A 2018-05-15 2018-05-15 A kind of flexible package is modified CPP films and its production method Pending CN108641196A (en)

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CN102328779A (en) * 2011-06-14 2012-01-25 刘继福 High-barrier layer flexible packaging film for isolating contents of polymer lithium battery
CN102615908A (en) * 2012-03-31 2012-08-01 福建师范大学福清分校 Propylene-based elastomer/metallocene polyethylene (mPE)/nano silicon dioxide modified casting polypropylene (CPP) film
KR20150039415A (en) * 2013-10-02 2015-04-10 주식회사 제닉 Tray having multi-compartment
CN103522695A (en) * 2013-10-17 2014-01-22 成都五牛壮达新材料有限公司 Flexible packaging modified CPP (Chlorinated Polypropylene) thin film and production method thereof
CN203600735U (en) * 2013-10-17 2014-05-21 成都五牛壮达新材料有限公司 Flexible packaging modified CPP (Chlorinated Polypropylene) thin film applicable to food
CN106079791A (en) * 2016-08-10 2016-11-09 浙江金石包装有限公司 Composite membrane printing variable code and preparation method thereof in a kind of location
CN107685518A (en) * 2017-10-17 2018-02-13 安徽松泰包装材料有限公司 One kind is packed for CPP films and preparation method thereof
CN107722460A (en) * 2017-11-09 2018-02-23 安徽松泰包装材料有限公司 A kind of cast polypropylene film for adding nanofiber and preparation method thereof

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Application publication date: 20181012