CN102453279B - Polypropylene composition for producing bottle cap of carbonated beverage - Google Patents
Polypropylene composition for producing bottle cap of carbonated beverage Download PDFInfo
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- CN102453279B CN102453279B CN 201010515978 CN201010515978A CN102453279B CN 102453279 B CN102453279 B CN 102453279B CN 201010515978 CN201010515978 CN 201010515978 CN 201010515978 A CN201010515978 A CN 201010515978A CN 102453279 B CN102453279 B CN 102453279B
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Abstract
The invention relates to a polypropylene composition for producing a bottle cap of a carbonated beverage. The composition comprises the following substances: 30-60 parts of homopolymerized polypropylene with an isotacticity higher than 99% and an MFR of 1-30g / 10 min; 30-60 parts of block copolymerized polypropylene with an MFR of 1-15g / 10 min; 4-20 parts of polyethylene with a density of 0.955-0.968 g / cm<3> and an MFR of 1-15 g / 10 min; 5-15 parts of polyolefin elastomer; 0.05-0.2 part of nucleating agent; and 0.3-1 part of slipping agent. The product has excellent rigidity, good impact resistance and good stress whitening resistance.
Description
Technical field
The present invention relates to a kind of polypropene composition, particularly a kind of polypropene composition with impact resistance that excellent rigidity becomes reconciled and good turning white of proof stress.
Background technology
Packing contains the beverage of carbonic acid vapour bottle cap used according to its use properties requirement, requires material to have excellent wholesomeness, high anti-deformability, good resistance to cracking, anti-cracking behavior and the turning white property of proof stress of falling.Produce at present raw materials used block copolymerization polypropylene and the high density polyethylene(HDPE)s of adopting of bottle cap of carbonated beverage more.Also useful homo-polypropylene was produced bottle cap of carbonated beverage in the past, bottle cap has good rigidity, anti-albefaction, but the anti-theft ring poor toughness of bottle cap, cracking phenomena easily appears, people used block copolymerization polypropylene to produce bottle cap of carbonated beverage afterwards, solved well the phenomenon of bottle cap anti-theft ring embrittlement, but bottle cap metamorphism and bottle cap screw thread place color blushing have appearred in bottle cap in situation with pressure.Also there is the people to improve the material blushing at some polyethylene of block copolymerization polypropylene blending, but because polypropylene is incompatible with polyethylene, the phenomenons such as anti-distortion reduction of cracking and bottle cap occurs at the mal-condition lower bottle cap.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of polypropene composition with impact resistance that excellent rigidity becomes reconciled and good turning white of proof stress, can be for the production of the bottle cap of carbonated beverage that satisfies industrial needs.
The invention provides a kind of polypropene composition for the production of bottle cap of carbonated beverage, said composition comprises following material: (1) homo-polypropylene: 30-60 part, degree of isotacticity are more than 99%, and MFR is 1-30g/10 minute; (2) MFR:1-15g/10 minute (3) polyethylene of block copolymerization polypropylene 30-50 part: 5-20 part, density are 0.955-0.968g/cm
3, MFR is 1-15g/10 minute (4) polyolefin elastomer 5-15 part (5) nucleator: 0.05-0.2 part, (6) slipping agent content: 0.3-1 part.Wherein,
Nucleator: organic phosphate polypropylene nucleater;
Polyolefin elastomer: POE(polyethylene octene elastomer), the EPDM(terpolymer EP rubber);
Slipping agent: amine hydroxybenzene
Composition of the present invention is different from the product of prior art, performance is greatly improved, the present invention is a kind of composition that is comprised of homo-polypropylene, block polypropylene, high density polyethylene(HDPE), polyolefin elastomer and nucleator, processing aid, has impact resistance that excellent rigidity (anti-deformability is good) becomes reconciled and good turning white of proof stress.Can satisfy the requirement of bottle cap of carbonated beverage performance.The present invention has improved the polyacrylic stress-whitening phenomenon that is subjected to by high density polyethylene(HDPE) and polypropylene part phase separation.
Embodiment
Embodiment 1: homo-polypropylene: MFR:8.0g/10 minute, and 40 parts, block copolymerization polypropylene: MFR:3.0g/10 minute, 40 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 15 parts; POE:5 part; Nucleant agent N A21(2,2 '-methylene-bis (4,6-t-butyl phenol) phosphine aluminium salt) 0.1 part; Amine hydroxybenzene: 0.5 part; Mix after 1 minute in homogenizer, carry out granulation at twin screw extruder, sample preparation, test.
Embodiment 2: homo-polypropylene: MFR:8.0g/10 minute, and 50 parts, block copolymerization polypropylene: MFR:3.0g/10 minute, 30 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 15 parts; POE:5 part; Nucleant agent N A21:0.1 part; Amine hydroxybenzene: 0.5 part; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Embodiment 3: homo-polypropylene: MFR:8.0g/10 minute, and 40 parts, block copolymerization polypropylene: MFR:3.0g/10 minute, 40 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 10 parts; POE:10 part; Nucleant agent N A21:0.1 part; Amine hydroxybenzene: 0.5 part; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Embodiment 4: homo-polypropylene: MFR:8.0g/10 minute, and 60 parts; Block copolymerization polypropylene: MFR:3.0g/10 minute, 30 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 4 parts; POE:5 part; Nucleant agent N A21:0.1 part; Amine hydroxybenzene: 0.5 part; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Embodiment 5: homo-polypropylene: MFR:8.0g/10 minute, and 40 parts, triblock copolymer polypropylene: MFR:9.0g/10 minute, 40 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 10 parts; POE:10 part; Nucleant agent N A21:0.1 part; Amine hydroxybenzene: 0.5 part; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Embodiment 6: homo-polypropylene: MFR:8.0g/10 minute, and 60 parts; Block copolymerization polypropylene: MFR:9.0g/10 minute, 30 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 5 parts; POE:5 part; Nucleant agent N A21:0.1 part; Amine hydroxybenzene: 0.5 part; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Embodiment 7: homo-polypropylene: MFR:8.0g/10 minute, and 60 parts; Block copolymerization polypropylene: MFR:9.0g/10 minute, 30 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 5 parts; POE:5 part, nucleant agent N A21:0.05 part; Amine hydroxybenzene: 0.5 part; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Embodiment 8: homo-polypropylene: MFR:8.0g/10 minute, and 40 parts; Block copolymerization polypropylene: MFR:3.0g/10 minute, 40 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 15 parts; EPDM:5 part; 0.1 part of nucleant agent N A21; 0.5 part of amine hydroxybenzene; Mix after 1 minute in homogenizer, carry out granulation at twin screw extruder, sample preparation, test.
Embodiment 9: homo-polypropylene: degree of isotacticity is 99.2, MFR:30g/10 minute, 40 parts, and block copolymerization polypropylene: MFR:3.0g/10 minute, 40 parts; Polyethylene: density: 0.955, MFR:1g/10 minute, 15 parts; POE:5 part; 0.1 part of nucleant agent N A21; Amine hydroxybenzene: 0.5 part; Mix after 1 minute in homogenizer, carry out granulation at twin screw extruder, sample preparation, test.
Embodiment 10: homo-polypropylene: degree of isotacticity is 99.2, MFR:1g/10 minute, 40 parts, and block copolymerization polypropylene: MFR:3.0g/10 minute, 40 parts; Polyethylene: density: 0.968, MFR:15g/10 minute, 15 parts; POE:5 part; 0.1 part of nucleant agent N A21; Amine hydroxybenzene: 0.5 part; Mix after 1 minute in homogenizer, carry out granulation at twin screw extruder, sample preparation, test.
Embodiment 11: homo-polypropylene: degree of isotacticity is 99.3, MFR:8g/10 minute, 50 parts, and block copolymerization polypropylene: MFR:3.0g/10 minute, 30 parts; Polyethylene: density: 0.968, MFR:15g/10 minute, 5 parts; POE:15 part; 0.2 part of nucleant agent N A21; Amine hydroxybenzene: 2 parts; Mix after 1 minute in homogenizer, carry out granulation at twin screw extruder, sample preparation, test.
Comparative example 1: block copolymerization polypropylene: MFR:9.0g/10 minute, 100 parts, 0.5 part of amine hydroxybenzene carried out granulation at twin screw extruder, sample preparation, test after homogenizer mixes 1 minute.
Comparative example 2: block copolymerization polypropylene: MFR:9.0g/10 minute, 100 parts; 0.1 part of nucleant agent N A21; 0.5 part of amine hydroxybenzene; Composition after mixing 1 minute, homogenizer is carried out granulation at twin screw extruder, sample preparation, test.
Comparative example 3: block copolymerization polypropylene: MFR:9.0g/10 minute, 85 parts; Polyethylene: density: 0.955, MFR:6g/10 minute, 15 parts; Nucleant agent N A21:0.1 part; 0.1 part of amine hydroxybenzene; After mixing 1 minute, homogenizer carries out granulation at twin screw extruder, sample preparation, test.
Table one, embodiment data sheet
Table two, embodiment data sheet
Table three, comparative example data sheet
Formulation data by embodiment and comparative example can be seen: comparative example 1 is block copolymerization polypropylene, does not add nucleator, and data show: modulus in flexure is lower, and anti-albefaction is poor.Comparative example 2 has added nucleator in block copolymerization polypropylene, modulus in flexure has improved, but anti-albefaction degree does not change.Comparative example 3 is sneaked into polyethylene in polypropylene, test shows: anti-albefaction is improved, but the resistance to cracking variation.Use homo-polypropylene, block copolymerization polypropylene, polyethylene, polyolefin elastomer to add again nucleator and slipping agent in embodiment, the performance of material has high rigidity, good impact resistance, good anti-albefaction, good resistance to cracking can satisfy the service requirements of carbonic acid bottle cap.
Claims (8)
1. the high resistance polypropene composition of the anti-stress whitening of rigidity of leaping high is characterized in that: comprise by weight following raw material:
A, homo-polypropylene: 50-55 part
B, block copolymerization polypropylene 40-45 part
C, polyethylene: 10-15 part
D, polyolefin elastomer 10-12 part
E, nucleator: 0.1 part
F, slipping agent content: 0.5-0.7 part.
2. composition according to claim 1, wherein the homo-polypropylene degree of isotacticity is more than 99%, and MFR is 1 ~ 30g/10 minute.
3. according to claim 1-2 described compositions of any one, wherein the MFR of block copolymerization polypropylene is 1 ~ 15g/10 minute.
4. according to claim 1-2 described compositions of any one, wherein density of pe is 0.955-0.968g/cm
3, MFR is 1 ~ 15 g/10 minute.
5. composition according to claim 3, wherein density of pe is 0.955-0.968g/cm
3, MFR is 1 ~ 15 g/10 minute.
6. composition according to claim 1, wherein polyolefin elastomer is POE and/or EPDM.
7. composition according to claim 1, wherein slipping agent is amine hydroxybenzene.
8. bottle cap of carbonated beverage, it adopts as the described polypropene composition of claim 1-7 any one and is prepared from.
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| CN 201010515978 CN102453279B (en) | 2010-10-22 | 2010-10-22 | Polypropylene composition for producing bottle cap of carbonated beverage |
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| CN102453279B true CN102453279B (en) | 2013-06-12 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT2834302T (en) * | 2012-04-03 | 2016-12-22 | Igap S P A | Thermoplastic polymer formulation containing polyamides/evoh and polyolefins, use and products thereof |
| CN103554676A (en) * | 2013-11-05 | 2014-02-05 | 上海紫日包装有限公司 | Novel cap shell material of plastic bottle cap and preparation method thereof |
| CN104910508A (en) * | 2014-03-12 | 2015-09-16 | 中国人民解放军总后勤部军需装备研究所 | Modified polypropylene material, and preparation method and application thereof |
| MX2014008464A (en) * | 2014-07-10 | 2016-01-11 | Indelpro S A De C V | Enhanced composition based on a homopolymer and/or polypropylene copolymer for manufacturing and/or making carbonated beverage caps with rigidity and tightness increased features without the need for using seals, and manufacture process. |
| CN104610656A (en) * | 2015-01-29 | 2015-05-13 | 宝鸡石油机械有限责任公司 | High and low temperature resin material for plastic coating (impregnating) of steel wire ropes |
| CN105128368A (en) * | 2015-08-17 | 2015-12-09 | 安徽省灵普塑胶材料有限公司 | Preparation method of disposable plastic sheets |
| US10654997B2 (en) * | 2016-03-25 | 2020-05-19 | Dow Global Technologies Llc | Buffer tubes for fiber optic cables |
| US10889708B2 (en) * | 2016-08-11 | 2021-01-12 | Sabic Global Technologies B.V. | Polymer composition for caps and closures |
| KR101987575B1 (en) * | 2018-01-12 | 2019-06-10 | 한화토탈 주식회사 | Non-paint metallic Polypropylene resin composite having whitening resistance |
| CN109517265B (en) * | 2018-10-30 | 2021-12-31 | 江苏金发科技新材料有限公司 | Solvent-resistant polypropylene composition and preparation method thereof |
| CN113831649B (en) * | 2021-11-08 | 2022-07-22 | 连云港市鼎尚包装有限公司 | Preparation method of heat-resistant bottle cap sealing material |
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| CN1834145A (en) * | 2005-03-18 | 2006-09-20 | 上海金发科技发展有限公司 | Polypropylene composite material for automobile bumper and prepn. thereof |
| CN101058655A (en) * | 2006-04-18 | 2007-10-24 | 上海金发科技发展有限公司 | Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application |
| CN101084268A (en) * | 2004-12-23 | 2007-12-05 | 巴塞尔聚烯烃意大利有限责任公司 | Polyolefinic compositions having good whitening resistance |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101084268A (en) * | 2004-12-23 | 2007-12-05 | 巴塞尔聚烯烃意大利有限责任公司 | Polyolefinic compositions having good whitening resistance |
| CN1834145A (en) * | 2005-03-18 | 2006-09-20 | 上海金发科技发展有限公司 | Polypropylene composite material for automobile bumper and prepn. thereof |
| CN101058655A (en) * | 2006-04-18 | 2007-10-24 | 上海金发科技发展有限公司 | Stress blanching and stress crack resistant filling modified polypropylene, preparation method and application |
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