CN101597399A - Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film - Google Patents

Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film Download PDF

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Publication number
CN101597399A
CN101597399A CNA2008100386247A CN200810038624A CN101597399A CN 101597399 A CN101597399 A CN 101597399A CN A2008100386247 A CNA2008100386247 A CN A2008100386247A CN 200810038624 A CN200810038624 A CN 200810038624A CN 101597399 A CN101597399 A CN 101597399A
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CN
China
Prior art keywords
oxidation inhibitor
parts
additive
resin composite
polypropylene resin
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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.)
Pending
Application number
CNA2008100386247A
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Chinese (zh)
Inventor
陈铭
王荣和
陈国康
黄伟东
刘勇
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Sinopec Shanghai Petrochemical Co Ltd
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Sinopec Shanghai Petrochemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sinopec Shanghai Petrochemical Co Ltd filed Critical Sinopec Shanghai Petrochemical Co Ltd
Priority to CNA2008100386247A priority Critical patent/CN101597399A/en
Publication of CN101597399A publication Critical patent/CN101597399A/en
Pending legal-status Critical Current

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Abstract

A kind of polypropylene resin composite of making high-transparency and high-rigidity cigarette packaging film comprises acrylic resin base-material and additive, forms through melting mixing.The acrylic resin base-material is an isotatic polypropylene, and additive comprises nucleator, thermo-stabilizer, oxidation inhibitor A and oxidation inhibitor B.Wherein: nucleator is two (the 4-tertiary butyl-phenoxy group) phosphoric acid salt; Thermo-stabilizer is 3-aryl-benzofuranone; Oxidation inhibitor A is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Oxidation inhibitor B is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester.The weight ratio of acrylic resin base-material and additive is 100: 0.08~0.20.It not only has good film forming processing characteristics, and the BOPP cigarette packaging film that makes has higher rigidity and more good transparency and glossiness.

Description

Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film
Technical field
The present invention relates to a kind of polypropylene resin composite, particularly be used to make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film.
Background technology
Biaxially oriented polypropylene film (BOPP) (BOPP) film is one of fastest-rising kind in the polypropylene articles, colourless because of it, do not have smell, tasteless, nontoxic, and have high tensile, high rigidity and the good transparency, so be excellent flexible packing material, use very extensive at present.At this wherein, the BOPP cigarette packaging film is a kind of product of top grade, compares with common BOPP packing film, and it has lower heat-sealing temperature, better barrier property, high-clarity, high rigidity and good characteristics such as the quality that folds.The bidirectional high speed that a lot of characteristics of BOPP film mainly come from the course of processing stretches, but easily makes macromole because of oxidation or be heated and decompose in the drawing process, so it is made and must contain additive anti-oxidant and that heat resistanceheat resistant is decomposed in raw material acrylic resin.Simultaneously, additive also has the effect that improves film oxidation resistent susceptibility in the life-time service process.
In the prior art, the additive of making in the BOPP cigarette packaging film acrylic resin PP Pipe Compound mainly is made up of some oxidation inhibitor that are suitable for and prevention molecule pyrolysated thermo-stabilizer.Single the appropriateness of responsible additive add-on increases with regard to obtaining high oxidation-resistance and heat resistanceheat resistant decomposition, but this will bring the mechanical property of film and the drawback that optical property reduces.How many existing acrylic resins that is used to make high-transparency and high-rigidity cigarette packaging film exists the defective of this respect.
Summary of the invention
The invention provides a kind of polypropylene resin composite of making high-transparency and high-rigidity cigarette packaging film, the present invention improves additive wherein, technical problem to be solved is to make polypropylene resin composite not only have good processing properties, and can make as the BOPP cigarette packaging film of raw material manufacturing and have higher rigidity and more good transparency and glossiness.
Below be the concrete technical scheme of the present invention:
A kind of polypropylene resin composite of making high-transparency and high-rigidity cigarette packaging film, said composition comprises acrylic resin base-material and additive, forms through melting mixing.The acrylic resin base-material is an isotatic polypropylene, and its melt flow rate (MFR) is 2.8~4.0g/10min, and degree of isotacticity is 96.0~98.0%; Additive comprises nucleator, thermo-stabilizer, oxidation inhibitor A and oxidation inhibitor B.Wherein:
Nucleator is two (the 4-tertiary butyl-phenoxy group) phosphoric acid salt;
Thermo-stabilizer is 3-aryl-benzofuranone;
Oxidation inhibitor A is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester;
Oxidation inhibitor B is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester.
The components of additives proportioning is in weight part, and when oxidation inhibitor A was 100 parts, oxidation inhibitor B was 35~45 parts, and nucleator is 15~26 parts, and thermo-stabilizer is 6~16 parts.
The weight ratio of acrylic resin base-material and additive is 100: 0.08~0.20.
Above-mentioned components of additives proportioning is in weight part, and when oxidation inhibitor A was 100 parts, oxidation inhibitor B was preferably 38~45 parts; Nucleator is preferably 18~25 parts; Thermo-stabilizer is preferably 7~12 parts.
The weight ratio of above-mentioned acrylic resin base-material and additive is preferably 100: 0.10~and 0.15.
Key of the present invention is that additive is improved, and has selected a kind of suitable nucleator to add wherein.The contriver found through experiments, and the adding of nucleator can make the resin crystallinity appropriateness improve, and it is more even that crystal grain is thinner, the crystalline region distributes, and the additive total amount is reduced.Compared with prior art, polypropylene resin composite provided by the invention has guaranteed that not only it has good processing properties, and can make as the BOPP cigarette packaging film of raw material manufacturing and have higher rigidity and more good transparency and glossiness.
The invention will be further described below by embodiment.Because key of the present invention is the improvement of additive, other parts and prior art are basic identical, so embodiment will pay attention to enumerating of additive formulations and addition testing data.
Embodiment
[embodiment 1~8]
Get powdered polypropylene resin binder 500kg,, mix thoroughly in each component of required ratio adding additive.Material drops into twin screw extruder and carries out the melting mixing granulation.The residence time of material in screw rod is 2~4 minutes, and extruder temperature is controlled to be 190~220 ℃.The polypropylene resin composite particle that obtains is finished product behind cooling drying, each embodiment makes the 500kg sample.
The acrylic resin base-material is an isotatic polypropylene, and its melt flow rate (MFR) is 2.8~4.0g/10min, and degree of isotacticity is 96.0~98.0%.
Additive is made up of nucleator, thermo-stabilizer, oxidation inhibitor A and oxidation inhibitor B, wherein:
Nucleator is two (the 4-tertiary butyl-phenoxy group) phosphoric acid salt;
Thermo-stabilizer is 3-aryl-benzofuranone;
Oxidation inhibitor A is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester;
Oxidation inhibitor B is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester.
The add-on of each embodiment components of additives proportioning and additive sees Table 1, and wherein the components of additives proportioning is the weight part of other component when oxidation inhibitor A is 100 weight parts; The add-on of additive is the weight part of additive when the acrylic resin base-material is 100 weight parts.
The polypropylene resin composite finished product that each embodiment obtains adopts BOPP processes film, and film thickness is 20~22 μ, and tests its main performance index after timeliness, the results are shown in Table 2.
Table 1.
Nucleator (weight part) Oxidation inhibitor B (weight part) Thermo-stabilizer (weight part) Additive add-on (weight part)
Embodiment 1 15 35 16 0.20
Embodiment 2 16 35 12 0.15
Embodiment 3 18 38 12 0.15
Embodiment 4 20 38 10 0.14
Embodiment 5 20 40 12 0.12
Embodiment 6 25 40 7 0.10
Embodiment 7 25 45 10 0.10
Embodiment 8 26 45 6 0.08
Table 2.
Tensile strength (MPa) Modulus in tension (N/mm 2) Mist degree (%) Glossiness (GU)
Embodiment 1 162 2121 1.38 91.2
Embodiment 2 168 2140 1.37 91.7
Embodiment 3 172 2278 1.31 92.3
Embodiment 4 169 2315 1.27 92.8
Embodiment 5 170 2351 1.28 92.6
Embodiment 6 172 2289 1.26 92.8
Embodiment 7 169 2301 1.29 92.4
Embodiment 8 174 2265 1.31 91.7

Claims (5)

1, a kind of polypropylene resin composite of making high-transparency and high-rigidity cigarette packaging film, said composition comprises acrylic resin base-material and additive, form through melting mixing, the acrylic resin base-material is an isotatic polypropylene, its melt flow rate (MFR) is 2.8~4.0g/10min, and degree of isotacticity is 96.0~98.0%; Additive comprises nucleator, thermo-stabilizer, oxidation inhibitor A and oxidation inhibitor B, wherein:
Nucleator is two (the 4-tertiary butyl-phenoxy group) phosphoric acid salt;
Thermo-stabilizer is 3-aryl-benzofuranone;
Oxidation inhibitor A is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester;
Oxidation inhibitor B is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester,
The components of additives proportioning is in weight part, and when oxidation inhibitor A was 100 parts, oxidation inhibitor B was 35~45 parts, and nucleator is 15~26 parts, and thermo-stabilizer is 6~16 parts;
The weight ratio of acrylic resin base-material and additive is 100: 0.08~0.20.
2, polypropylene resin composite according to claim 1 is characterized in that described components of additives proportioning in weight part, and when oxidation inhibitor A was 100 parts, oxidation inhibitor B was 38~45 parts.
3, polypropylene resin composite according to claim 1 is characterized in that described components of additives proportioning in weight part, and when oxidation inhibitor A was 100 parts, nucleator was 18~25 parts.
4, polypropylene resin composite according to claim 1 is characterized in that described components of additives proportioning in weight part, and when oxidation inhibitor A was 100 parts, thermo-stabilizer was 7~12 parts.
5, polypropylene resin composite according to claim 1, the weight ratio that it is characterized in that described acrylic resin base-material and additive is 100: 0.10~0.15.
CNA2008100386247A 2008-06-05 2008-06-05 Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film Pending CN101597399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100386247A CN101597399A (en) 2008-06-05 2008-06-05 Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100386247A CN101597399A (en) 2008-06-05 2008-06-05 Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film

Publications (1)

Publication Number Publication Date
CN101597399A true CN101597399A (en) 2009-12-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100386247A Pending CN101597399A (en) 2008-06-05 2008-06-05 Make the polypropylene resin composite of high-transparency and high-rigidity cigarette packaging film

Country Status (1)

Country Link
CN (1) CN101597399A (en)

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Open date: 20091209