CN104629149A - Beer crown cap polyolefin gasket granule - Google Patents
Beer crown cap polyolefin gasket granule Download PDFInfo
- Publication number
- CN104629149A CN104629149A CN201510068201.XA CN201510068201A CN104629149A CN 104629149 A CN104629149 A CN 104629149A CN 201510068201 A CN201510068201 A CN 201510068201A CN 104629149 A CN104629149 A CN 104629149A
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- 10min
- beer
- melting index
- styrene
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- 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
-
- 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
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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
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention discloses a beer crown cap polyolefin gasket granule which is composed of 20-38 parts of LDPE (low-density polyethylene), 20-38 parts of HDPE (high-density polyethylene), 10-15 parts of PP (polypropylene), 0-12 parts of SBS (styrene-butadiene-styrene), 0-12 parts of SEBS (styrene-ethylene-butadiene-styrene), 0-12 parts of POE (polyolefin elastomer), 0-12 parts of TPV (thermoplastic vulcanizate) and 2-5 parts of OPE (oxidized polyethlene). All the raw materials are blended and extruded to obtain the beer crown cap polyolefin gasket. All the raw materials of the gasket material are food grade, and are completely free of PVC (polyvinyl chloride) or any plasticizer, thereby ensuring the safety of beer food and being beneficial to human health. The gasket material completely conforms to the performance requirements for the gasket material in the national standard, and especially the pressure resistance, slow leakage resistance and the like are greatly higher than the national standard. The production method is simple in technique, all equipment is universal polymer processing equipment and available for the original PVC gasket material production equipment, and the method is easy for popularization and application.
Description
Technical field
The invention belongs to polymeric material field, specifically belong to Food Packaging technology field, more specifically, relate to a kind of Beer Bottle crown cap polyolefin gasket material.
Background technology
As everyone knows, polyvinyl chloride (PVC) is the main raw of Domestic Beer Metal Crown Lid pad.Along with the sustainable development of Chinese beer industry, according to incompletely statistics, within 2013, Chinese beer output is more than 5,000 ten thousand tons, needs to surpass 1,000 hundred million Beer Bottles, needs 340 milligrams of pads to calculate, by consumption PVC main raw material more than 30,000 tons with average each bottle cap.Abundant data have been had to show, PVC material is used for packaging material for food, there is great potential safety hazard, except the vinyl chloride monomer residued in polyvinyl chloride is except carcinogenic substance, the small molecules softening agent added in the processing of what is more important PVC material, especially phthalate.Phthalate has estrogen effect, it is a kind of environment incretion interferent, food contact material containing phthalic ester plasticizer, in long-term and Food Contact process, excessive phthalic ester may be moved out of in food, thus work the mischief to human consumer is healthy.Therefore, make laws one after another and strengthen phthalic easter plastizer content cold in food contact material and migration quantitative limitation requirement in countries in the world.European Union have passed the compulsory injunction (2005/84/EC) of phthalic ester in December, 2005, in June, 2011, the non-food product material that the Ministry of Health of China discloses the illegal interpolation of possibility in the 6th batch of food and the foodstuff additive list easily abused, amounting to 17 kinds is all phthalate.
Adopt non-PVC material as beer Metal Crown Lid pad, become inexorable trend.Chinese patent CN102408603A discloses the pellet and preparation method thereof for the production of beer, beverage crown cap polyolefin gasket, and it is main raw by Low Density Polyethylene, is aided with SBS and oxidation inhibitor master batch composition; Chinese patent CN103012903A discloses that beer bottle cap is high resistance toly forces down chronic leakage rate gasket material and preparation method thereof, and it is main raw by Low Density Polyethylene, is aided with SBS, polystyrene and a small amount of lubricant composition thereof; The application that Chinese patent CN1465507A discloses bottle cap material and covers at heat filling beverage bottle, it is main raw by EVA, PE, is aided with the compositions such as SBS.The common feature of above patent all adopts non-PVC to be the gasket material of beer Metal Crown Lid, avoid adding of other processing aids such as softening agent, but also there are some common shortcomings, namely the elasticity of Metal Crown Lid pad and intensity are not as PVC pad, especially the compression deformation performance of pad can not reach actual operation requirements, and cohesiveness between Metal Crown Lid pad and zinc-plated ferrochrome lid is poor, causes the appearance of the problems such as side leakage.
Summary of the invention
For solving the deficiencies in the prior art, the object of this invention is to provide a kind of pellet of beer crown cap polyolefin gasket.This pad pellet all adopts food grade to be raw material, nonpoisonous and tasteless, completely not plasticizer-containing, meets EU criteria; This gasket material has that intensity is large, good springiness, and the advantage such as cohesiveness between zinc-plated ferrochrome lid is good.Adopt the beer bottle cap that this pad pellet is made, the beer bottle cap that existing PVC pellet makes is far longer than to the Beer Bottle withstand voltage test result filling with beer.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
A pellet for beer crown cap polyolefin gasket, is characterized in that, is made up of the component of following parts by weight:
Described Low Density Polyethylene, its melting index is 2.0 ~ 6.0g/10min, and preferred melting index is 2.5 ~ 3.0g/10min;
Described high density polyethylene(HDPE), its melting index is 15.0 ~ 30.0g/10min, and preferred melting index is 16 ~ 24g/10min;
Described polypropylene, its melting index is 20 ~ 50g/10min, and preferred melting index is 25 ~ 45g/10min;
Described styrene-butadiene block copolymer, selects injection grade linear structure, and its melting index is 4 ~ 8g/10min, and the preferred trade mark is SBSYH-788;
Described styrene-ethylene-butadiene segmented copolymer, select the linear middle-molecular-weihydroxyethyl product of injection grade, its melting index < 2.5g/10min, the preferred trade mark is SEBSYH-506;
Described ethylene-butene copolymer, its melting index < 2.0g/10min, the preferred trade mark is POE8150;
Described thermoplasticity terpolymer EP rubber, the preferred trade mark is all flat 271-55 in U.S. mountain.
A preparation method for the pellet of beer crown cap polyolefin gasket is that above-mentioned each component is weighed by weight, mixed, through twin screw extruder extrusion molding, cut draw after cooling, dry, namely form pellet finished product.
Technical characterstic of the present invention is, the present invention for main raw material, is aided with the cooperation of various thermoplastic elastomer with Low Density Polyethylene, high density polyethylene(HDPE) and polypropylene, is that traditional Metal Crown Lid gasket material is unexistent.Especially by used in combination with certain proportion to SBS, SEBS, TPV, POE of specified property, take full advantage of their respective performance characteristics and meet materials processing demand.Thus, a kind of beer crown cap polyolefin gasket pellet of the present invention, not only has suitable physical strength, and there is excellent elasticity and incompressible deformation performance, accomplish the equilibrium of toughness and intensity, and owing to not adding oily lubricant, avoid oily lubricant from the precipitation pad.
Usefulness of the present invention is: gasket material of the present invention, and completely not containing PVC and softening agent, all raw materials use food grade, meet European Union environmental protection standard, ensure that the security of beer food, be conducive to HUMAN HEALTH; Gasket material of the present invention meets the performance requriements of national standard for gasket material completely, and the aspect such as especially withstand voltage and resistance to slow leakage is much higher than national standard; Gasket material production method of the present invention, technique is simple, and the equipment of use is general polymer-processing equipment, can be general with the production unit of former PVC gasket material, is easy to apply.
Embodiment
Below in conjunction with specific embodiment, concrete introduction is done to the present invention.
The raw material that the embodiment of the present invention uses is as follows: LDPE is purchased from Qilu Petrochemical 2102TN26, HDPE is purchased from Maoming Petrochemical DMDB-8920, PP is purchased from Liaoyang petrochemical industry T1735, SBS is purchased from Ba Ling petrochemical industry YH-788, SEBS is purchased from Ba Ling petrochemical industry YH-506, POE purchased from American Tao Shi POE8150, TPV purchased from American mountain flat 271-55, OPE are General Foods Corporation's level.
Embodiment 1 ~ embodiment 8 formula composition and the Beer Bottle withstand voltage test value made thus thereof.
Claims (3)
1. a pellet for beer crown cap polyolefin gasket, is characterized in that, is made up of following parts by weight component:
2. the pellet of a kind of beer crown cap polyolefin gasket according to claim 1, is characterized in that: described Low Density Polyethylene, and its melting index is 2.0 ~ 6.0g/10min; Described high density polyethylene(HDPE), its melting index is 15.0 ~ 30.0g/10min; Described polypropylene, its melting index is 20 ~ 50g/10min; Described styrene-butadiene block copolymer, selects injection grade linear structure, and its melting index is 4 ~ 8g/10min; Described styrene-ethylene-butadiene segmented copolymer, selects the linear middle-molecular-weihydroxyethyl product of injection grade, its melting index < 2.5g/10min; Described ethylene-butene copolymer, its melting index < 2.0g/10min.
3. the pellet of a kind of beer crown cap polyolefin gasket according to claim 1, is characterized in that: described Low Density Polyethylene, and its melting index is 2.5 ~ 3.0g/10min; Described high density polyethylene(HDPE), its melting index is 16 ~ 24g/10min; Described polypropylene, its melting index is 25 ~ 45g/10min; Described styrene-butadiene block copolymer, the preferred trade mark is SBSYH-788; Described styrene-ethylene-butadiene segmented copolymer, the preferred trade mark is SEBSYH-506; Described ethylene-butene copolymer, the preferred trade mark is POE8150; Described thermoplasticity terpolymer EP rubber, the preferred trade mark is all flat 271-55 in U.S. mountain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068201.XA CN104629149A (en) | 2015-02-09 | 2015-02-09 | Beer crown cap polyolefin gasket granule |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068201.XA CN104629149A (en) | 2015-02-09 | 2015-02-09 | Beer crown cap polyolefin gasket granule |
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| CN104629149A true CN104629149A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510068201.XA Pending CN104629149A (en) | 2015-02-09 | 2015-02-09 | Beer crown cap polyolefin gasket granule |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107973968A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of composition for thermoplastic elastomer and preparation method thereof and gasket seal and the method for preparing gasket seal in crown plug |
| CN107973953A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of composition for thermoplastic elastomer and preparation method thereof and gasket seal and the method for preparing gasket seal in crown plug |
| CN109456522A (en) * | 2018-09-26 | 2019-03-12 | 上海敏孑图文设计事务所（有限合伙） | A kind of semirigid plastic row button and its preparation process |
| CN109642060A (en) * | 2016-08-11 | 2019-04-16 | Sabic环球技术有限责任公司 | For covering and the polymer composition of closure member |
| CN113637250A (en) * | 2021-08-20 | 2021-11-12 | 赤途实业(上海)有限公司 | Polymer composition for container cover and container cover |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929128A (en) * | 1993-08-18 | 1999-07-27 | The Dow Chemical Company | Gaskets made from olefin polymers |
| CN102977452A (en) * | 2012-12-11 | 2013-03-20 | 上海方田弹性体有限公司 | Metal crown lid internal gasket sealing material with oxygen absorbing function |
| CN104250404A (en) * | 2014-09-25 | 2014-12-31 | 无锡市天聚科技有限公司 | Can bottle cap gasket aggregate and preparation method thereof |
-
2015
- 2015-02-09 CN CN201510068201.XA patent/CN104629149A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5929128A (en) * | 1993-08-18 | 1999-07-27 | The Dow Chemical Company | Gaskets made from olefin polymers |
| CN102977452A (en) * | 2012-12-11 | 2013-03-20 | 上海方田弹性体有限公司 | Metal crown lid internal gasket sealing material with oxygen absorbing function |
| CN104250404A (en) * | 2014-09-25 | 2014-12-31 | 无锡市天聚科技有限公司 | Can bottle cap gasket aggregate and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642060A (en) * | 2016-08-11 | 2019-04-16 | Sabic环球技术有限责任公司 | For covering and the polymer composition of closure member |
| CN107973968A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of composition for thermoplastic elastomer and preparation method thereof and gasket seal and the method for preparing gasket seal in crown plug |
| CN107973953A (en) * | 2016-10-21 | 2018-05-01 | 中国石油化工股份有限公司 | A kind of composition for thermoplastic elastomer and preparation method thereof and gasket seal and the method for preparing gasket seal in crown plug |
| CN107973968B (en) * | 2016-10-21 | 2021-05-11 | 中国石油化工股份有限公司 | Thermoplastic elastomer composition and preparation method thereof, sealing gasket and method for preparing sealing gasket in crown cap |
| CN109456522A (en) * | 2018-09-26 | 2019-03-12 | 上海敏孑图文设计事务所（有限合伙） | A kind of semirigid plastic row button and its preparation process |
| CN113637250A (en) * | 2021-08-20 | 2021-11-12 | 赤途实业(上海)有限公司 | Polymer composition for container cover and container cover |
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Application publication date: 20150520 |