CN101597404A - Be used to make the polypropylene resin composite of ultra-high speed biaxially oriented film - Google Patents

Be used to make the polypropylene resin composite of ultra-high speed biaxially oriented film Download PDF

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Publication number
CN101597404A
CN101597404A CNA200810038629XA CN200810038629A CN101597404A CN 101597404 A CN101597404 A CN 101597404A CN A200810038629X A CNA200810038629X A CN A200810038629XA CN 200810038629 A CN200810038629 A CN 200810038629A CN 101597404 A CN101597404 A CN 101597404A
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China
Prior art keywords
oxidant
auxiliary
primary antioxidant
parts
additive
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Pending
Application number
CNA200810038629XA
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Chinese (zh)
Inventor
陈国康
黄伟东
蒋忠辉
刘勇
王荣和
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Sinopec Shanghai Petrochemical Co Ltd
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Sinopec Shanghai Petrochemical Co Ltd
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Application filed by Sinopec Shanghai Petrochemical Co Ltd filed Critical Sinopec Shanghai Petrochemical Co Ltd
Priority to CNA200810038629XA priority Critical patent/CN101597404A/en
Publication of CN101597404A publication Critical patent/CN101597404A/en
Pending legal-status Critical Current

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Abstract

A kind of polypropylene resin composite that is used to make the ultra-high speed biaxially oriented film comprises acrylic resin base-material and additive, forms through melting mixing.The acrylic resin base-material is high isotatic polypropylene, and additive comprises primary antioxidant I and II, and auxiliary anti-oxidant I and II.Wherein: primary antioxidant I is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester; Primary antioxidant II is 1,3,5-trimethylammonium-2,4,6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene; Auxiliary anti-oxidant I is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester; Auxiliary anti-oxidant II is four (2, the 4-di-tert-butylphenol)-4,4 '-xenyl diphosphites.The weight ratio of acrylic resin base-material and additive is 100: 0.08~0.20.It can not only satisfy the requirement of ultra-high speed stretch processes, and the BOPP film that makes has more good mechanical property and optical property.

Description

Be used to make the polypropylene resin composite of ultra-high speed biaxially oriented film
Technical field
The present invention relates to a kind of polypropylene resin composite, particularly be used to make the polypropylene resin composite of ultra-high speed biaxially oriented 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 a good transparency, so be excellent flexible packing material, also be widely used as the base material of various composite membranes, be the very high coating materials of a kind of added value, development at present is rapid, and uses very extensive.
The bidirectional high speed that a lot of characteristics of BOPP film mainly come from the course of processing stretches, this has the higher requirement except degree of isotacticity, molecular weight and the molecular weight distribution etc. to the acrylic resin base-material, also requires to overcome the polymer macromolecule that causes because of oxidation in the drawing process and decomposes.Because the processing of film is carried out under the aerobic state of high temperature, long flow process, thermooxidative degradation can take place in polymer macromolecule, thereby has a strong impact on the ductility of polymkeric substance, and rupture of membranes very easily takes place during stretching.Therefore make in the raw material acrylic resin of BOPP film and must contain oxidation resistant additive, certainly, additive also has the effect that improves film oxidation resistent susceptibility in the life-time service process simultaneously.At present, the processing technology of BOPP film develops to the direction of high linear speed, big fabric width, high yield, and linear speed develops into 400~500m/min by 200m/min, is referred to as the ultra-high speed two-way stretch.Meanwhile, film thickness also reduced to 10~18 μ m by 15~38 former μ m.Everything is all had higher requirement to the raw material acrylic resin of making the BOPP film, will guarantee that not only it possesses good film forming processing characteristics, also will make the film that makes have favorable mechanical performance and optical property.At this wherein, the quality of additive performance plays a part very crucial.Generally speaking, the appropriateness increase that relies on the additive add-on also can obtain better oxidation-resistance, but this will cause the quality of film to descend, even makes the film forming poor processability on the contrary.Still there is the defective of this respect in what to the existing acrylic resin that is used to make the ultra-high speed biaxially oriented film, and therefore wherein the research of additive performance receives much concern always.
Summary of the invention
The invention provides a kind of polypropylene resin composite that is used to make the ultra-high speed biaxially oriented film, it improves the additive that adopts, technical problem to be solved is to make acrylic resin can not only satisfy the processing requirement of ultra-high speed two-way stretch film forming processing, and can guarantee to have more good mechanical property and optical property as the BOPP film of raw material manufacturing.
Below be the concrete technical scheme of the present invention:
A kind of polypropylene resin composite that is used to make the ultra-high speed biaxially oriented film, it comprises acrylic resin base-material and additive, forms through melting mixing.The acrylic resin base-material is high isotatic polypropylene, and its melt flow rate (MFR) is 2.50~3.50g/10min, and degree of isotacticity is 95.0~98.0%; Additive comprises primary antioxidant I and II, and auxiliary anti-oxidant I and II, wherein:
Primary antioxidant I is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester,
Primary antioxidant II is 1,3,5-trimethylammonium-2,4, and 6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene,
Auxiliary anti-oxidant I is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester,
Auxiliary anti-oxidant II is four (2, the 4-di-tert-butylphenol)-4,4 '-xenyl diphosphites.
The components of additives proportioning is in weight part, and when primary antioxidant I was 100 parts, primary antioxidant II was 20~35 parts, and auxiliary anti-oxidant I is 35~45 parts, and auxiliary anti-oxidant II is 15~25 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 primary antioxidant I was 100 parts, primary antioxidant II was preferably 25~35 parts; Auxiliary anti-oxidant I is preferably 35~40 parts; Auxiliary anti-oxidant II is preferably 15~20 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 the contriver found through experiments, and selected these oxidation inhibitor are with suitable ratio compatibility, and its antioxidant effect plays a part collaborative, and performance greatly improves, thereby the interpolation total amount of additive is minimized.Strict additive also belongs to a kind of impurity in the polypropylene base-material in fact, and under the prerequisite that guarantees antioxygen property, the minimizing of adding total amount is obviously very favourable to the reduction of the raising of the raising of film forming processibility, film article intensity and turbidity.Therefore, compared with prior art, polypropene composition provided by the invention has guaranteed that not only it has good processing properties, satisfies the complete processing requirement of ultra-high speed two-way stretch, and makes as the BOPP film of raw material manufacturing and have more good mechanical property and optical property.
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 acrylic resin particle that obtains is finished product behind cooling drying, each embodiment makes the 500kg sample.
The acrylic resin base-material is high isotatic polypropylene, and its melt flow rate (MFR) is 2.50~3.50g/10min, and degree of isotacticity is 95.0~98.0%.
Additive is by primary antioxidant I and II, and auxiliary anti-oxidant I and II composition, wherein:
Primary antioxidant I is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester,
Primary antioxidant II is 1,3,5-trimethylammonium-2,4, and 6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene,
Auxiliary anti-oxidant I is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester,
Auxiliary anti-oxidant II is four (2, the 4-di-tert-butylphenol)-4,4 '-xenyl diphosphites.
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 primary antioxidant I 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 acrylic resin finished product that each embodiment obtains adopts ultra-high speed BOPP processes film, and the processing linear speed is 475m/min, and film thickness is 18 μ m.The main performance index of testing film the results are shown in Table 2 after timeliness.
Table 1.
Primary antioxidant II Auxiliary anti-oxidant I Auxiliary anti-oxidant II The additive add-on
Embodiment 1 20 35 25 0.08
Embodiment 2 25 35 20 0.10
Embodiment 3 28 38 20 0.12
Embodiment 4 30 38 18 0.12
Embodiment 5 30 40 20 0.14
Embodiment 6 32 40 15 0.14
Embodiment 7 35 45 18 0.15
Embodiment 8 35 45 15 0.20
Table 2.
Tensile strength (MPa) Modulus in tension (N/mm 2) Mist degree (%)
Embodiment 1 164 1895 1.65
Embodiment 2 168 1905 1.67
Embodiment 3 169 1921 1.72
Embodiment 4 172 1975 1.71
Embodiment 5 173 1981 1.75
Embodiment 6 168 1967 1.80
Embodiment 7 170 1960 1.82
Embodiment 8 166 1934 1.85

Claims (5)

1, a kind of polypropylene resin composite that is used to make the ultra-high speed biaxially oriented film, it comprises acrylic resin base-material and additive, form through melting mixing, the acrylic resin base-material is high isotatic polypropylene, its melt flow rate (MFR) is 2.50~3.50g/10min, and degree of isotacticity is 95.0~98.0%; Additive comprises primary antioxidant I and II, and auxiliary anti-oxidant I and II, wherein:
Primary antioxidant I is four [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester,
Primary antioxidant II is 1,3,5-trimethylammonium-2,4, and 6-three (3, the 5-di-tert-butyl-4-hydroxyl benzyl) benzene,
Auxiliary anti-oxidant I is three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester,
Auxiliary anti-oxidant II is four (2, the 4-di-tert-butylphenol)-4,4 '-xenyl diphosphites,
The components of additives proportioning is in weight part, and when primary antioxidant I was 100 parts, primary antioxidant II was 20~35 parts, and auxiliary anti-oxidant I is 35~45 parts, and auxiliary anti-oxidant II is 15~25 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 primary antioxidant I was 100 parts, primary antioxidant II was 25~35 parts.
3, polypropylene resin composite according to claim 1 is characterized in that described components of additives proportioning in weight part, and when primary antioxidant I was 100 parts, auxiliary anti-oxidant I was 35~40 parts.
4, polypropylene resin composite according to claim 1 is characterized in that described components of additives proportioning in weight part, and when primary antioxidant I was 100 parts, auxiliary anti-oxidant II was 15~20 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.
CNA200810038629XA 2008-06-05 2008-06-05 Be used to make the polypropylene resin composite of ultra-high speed biaxially oriented film Pending CN101597404A (en)

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CNA200810038629XA CN101597404A (en) 2008-06-05 2008-06-05 Be used to make the polypropylene resin composite of ultra-high speed biaxially oriented film

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CN101597404A true CN101597404A (en) 2009-12-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103772802A (en) * 2012-10-26 2014-05-07 中国石油化工股份有限公司 Polypropylene resin composition for manufacturing high temperature cooking CPP film and high temperature cooling CPP film manufactured by applying same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103772802A (en) * 2012-10-26 2014-05-07 中国石油化工股份有限公司 Polypropylene resin composition for manufacturing high temperature cooking CPP film and high temperature cooling CPP film manufactured by applying same
CN103772802B (en) * 2012-10-26 2016-06-15 中国石油化工股份有限公司 A kind of polypropylene resin composite for manufacturing high temperature steaming CPP thin film and high temperature steaming CPP thin film thereof

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Open date: 20091209