CN102086287A - Thermoplastic elastomer material and plastic plug made of same - Google Patents
Thermoplastic elastomer material and plastic plug made of same Download PDFInfo
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- CN102086287A CN102086287A CN2009103108178A CN200910310817A CN102086287A CN 102086287 A CN102086287 A CN 102086287A CN 2009103108178 A CN2009103108178 A CN 2009103108178A CN 200910310817 A CN200910310817 A CN 200910310817A CN 102086287 A CN102086287 A CN 102086287A
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Abstract
The invention discloses a thermoplastic elastomer material and a plastic plug made of same. The thermoplastic elastomer material consists of the following components in percentage by weight: 40 to 60 percent of main material, 8 to 27 percent of main filler, 25 to 35 percent of toughening agent and 0 to 6.5 percent of auxiliary filler, wherein the main material is ethylene propylene rubber; the main filler contains polypropylene; and the toughening agent contains styrene, ethane, butane and styrene block copolymer (SEBS). The thermoplastic elastomer material has high elasticity, strength and resilience of rubber, and has the characteristic of capacity of being subjected to injection molding; compared with the traditional process, the method has the advantages of greatly shortening working time; and the thermoplastic elastomer material has the advantages of environmental friendliness, nontoxicity, safety, wide hardness range, good dyeing property, soft touch, weather resistance, fatigue resistance, temperature tolerance, and excellent processability, is not needed to be sulfurized, and can be recycled, so that the cost is reduced and the market competition is improved.
Description
Technical field
The present invention relates to a kind of thermoplastic elastic material and by the medical rubber stopper of its making.
Background technology
Therefore butyl rubber stoppers has reliable biological property, and good air-tightness energy, and more stable chemical property are widely used in the medical rubber stopper of field of medicaments.But also there are some problems in butyl rubber stoppers, to the powder injection example hydrochloric acid cefotiam of some chemistry and biological activity sensitivity; Infusion preparation that number acid alkalescence is stronger such as sodium bicarbonate injection; The infusion preparation of complicated component such as traditional Chinese medicine injection use butyl rubber stoppers still not satisfy the turbidity of medicine and the requirement of clarity, and promptly the consistency of butyl rubber stoppers and these medicines requires defective.For addressing this problem, carried out a large amount of research both at home and abroad, as sticking one deck dacron membrane on the plug surface, or at capsule forming simultaneously at surface recombination one deck poly tetrafluoroethylene.But, paste dacron membrane and need manual operations, loaded down with trivial details, increased the chance of human body to medicine pollution; Ptfe composite film production complex process causes plug cost height, costs an arm and a leg, and inconvenience is promoted the use of, and is difficult to be implemented in complex-shaped plug, as freeze-drying class plug surface recombination poly tetrafluoroethylene.
Chinese patent literature CN 101147719A discloses a kind of " medical local film capsule and production method thereof ", and it is surface deposition coating layer of even polychlorostyrene the filming for the p-Xylol film that contacts with medicine at plug.It is kept apart plug and medicine, soup for the p-Xylol coating by polychlorostyrene, avoids phase mutual diffusion and infiltration, reduces particle contamination, has satisfied the requirement of plug and medicine consistency, and cost is low than the ptfe composite film.Cost is higher, the defective of complex process but still exist.
Summary of the invention
First purpose of the present invention provides a kind ofly can reduce the plug cost of manufacture, shorten plug Production Time, guarantee the thermoplastic elastic material with the making medical rubber stopper of medicine consistency.
The technical scheme that realizes first purpose of the present invention is a kind of thermoplastic elastic material, is made up of material of main part, main weighting agent, toughner and inferior weighting agent; Material of main part is an ethylene-propylene rubber(EPR); Main weighting agent comprises polypropylene; Toughner comprises styrene-ethylene-butylene-styrene segmented copolymer (SEBS); The weight percent of moiety is as follows:
Material of main part: 40 ~ 60%
Main weighting agent: 8 ~ 27%
Toughner: 25 ~ 35%
Inferior weighting agent: 0 ~ 6.5%.
Described material of main part is one or both of crosslinkable terpolymer EP rubber, ethylene propylene rubber.
Described main weighting agent also comprises polystyrene.
The weight proportion of composing of described main weighting agent is: polypropylene: polystyrene=3: 2.
Described toughner also comprise styrene-butadiene-styrene block copolymer (SBS), polyethylene octene elastomer (POE), second third elastomerics (Vistamaxx) wherein one or more.
Described weighting agent comprise softening agent, oxidation inhibitor, linking agent wherein one or more.
The weight percent of the softening agent of described weighting agent is less than 3%, comprise white oil, fragrant hydrocarbon ils, naphthenic oil wherein one or more.
The weight percent of the oxidation inhibitor of described weighting agent is less than 1.5%, comprise 2.6-ditertbutylparacresol (BHT), 3,5-di-t-butyl-4 hydroxy phenyl propionic acid octadecanol ester, four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester wherein one or more.
The weight percent of the linking agent of described weighting agent is less than 2%, comprise superoxide, sulphur, disulphide wherein one or more.
Second purpose of the present invention provides that a kind of cost of manufacture is low, Production Time is short, with the good plug of medicine consistency.
The technical scheme that realizes second purpose of the present invention is to utilize thermoplastic elastic material provided by the invention to make plug.
The present invention has following positively effect: (1) thermoplastic elastic material of the present invention has the snappiness of rubber, high strength, high resilience, but have the feature of injection moulding processing again, compare traditional technology and greatly shortened the working hour, have environment-protecting asepsis safety, durometer level is wide, good tint permanence is arranged, soft-touch, weathering resistance, fatigue resistance and temperature tolerance, processing characteristics is superior, need not vulcanize, can recycle and reduce cost the raising market competitiveness.
(2) plug that adopts thermoplastic elastic material of the present invention to make is produced plug by selecting elastomerics for use, the material and the technology mode of plug have in the past thoroughly been changed, no lower-molecular substance is separated out in the medicine encapsulation process and in the storage process, promptly there is not byproduct of reaction to generate, guaranteed the consistency of medicine,, improved the quality of medicine greatly more widely with the medicine compatibility, greatly ensure the inherence knot cleanliness of product, reduce dependency isoprene-isobutylene rubber.
Embodiment
(embodiment 1)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 55% crosslinkable terpolymer EP rubber;
(2) main weighting agent is that mass percent is 15% polypropylene;
(3) toughner is that mass percent is 30% SEBS.
Wherein, terpolymer EP rubber is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon, has fabulous vulcanization characteristics, and is with low cost.Polypropylene is nontoxic, tasteless, and density is little, intensity
Http:// baike.baidu.com/view/91950.htm, rigidity, hardness thermotolerance all are better than low pressure polyethylene
Http:// baike.baidu.com/view/11277.htm, corrosion-resistant
Http:// baike.baidu.com/view/31398.htm and insulation.SEBS is to be end segment with the polystyrene, and the ethylene-butene copolymer that obtains with the polyhutadiene hydrogenation is the linearity three embedding multipolymers of middle elastomeric block, and SEBS does not contain unsaturated double-bond, therefore has satisfactory stability and ageing resistance.
(embodiment 2)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 45% ethylene propylene rubber;
(2) main weighting agent is that mass percent is 15% polypropylene and 10% polystyrene;
(3) toughner is that mass percent is 28% SBS;
(4) inferior weighting agent is a linking agent, i.e. 2% superoxide.
Wherein ethylene propylene rubber is become by monoolefine ethene, copolymerization of propylene.Polystyrene resin has that high transparency, easy coloring, processing fluidity are good, good rigidly and chemical resistance are good.SBS can contact with water, weak acid, alkali etc., has good tensile strength, good processability, and cost is low.
(embodiment 3)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 60% crosslinkable terpolymer EP rubber;
(2) main weighting agent is that mass percent is 12% polypropylene;
(3) toughner is 25% SEBS and SBS for total mass per-cent;
(4) inferior weighting agent is linking agent and softening agent, and linking agent is 1.5% sulphur, and softening agent is 1.5% white oil.
(embodiment 4)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 56% crosslinkable terpolymer EP rubber;
(2) main weighting agent is that mass percent is 15% polypropylene;
(3) toughner is 25% POE and SBS for total mass per-cent;
(4) inferior weighting agent is linking agent, softening agent and oxidation inhibitor, and linking agent is 1.5% disulphide, and softening agent is 1.5% fragrant hydrocarbon ils, and oxidation inhibitor is 1% BHT.
Wherein, POE has good machine-shaping property, need not add any fluidizer during moulding.
(embodiment 5)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 40% crosslinkable terpolymer EP rubber;
(2) main weighting agent is that mass percent is 27% polypropylene;
(3) toughner is 30% POE and SBS for total mass per-cent;
(4) inferior weighting agent is softening agent and oxidation inhibitor, and softening agent is 1.5% naphthenic oil, oxidation inhibitor be 1.5% 3,5-di-t-butyl-4 hydroxy phenyl propionic acid octadecanol ester.
(embodiment 6)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 45% crosslinkable terpolymer EP rubber;
(2) main weighting agent is that mass percent is 18.5% polypropylene;
(3) toughner is 35% POE and SBS and Vistamaxx for total mass per-cent;
(4) inferior weighting agent is an oxidation inhibitor, and oxidation inhibitor is four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester of 1.5%.
Wherein, Vistamaxx is with extraordinary second third elastomerics of metallocene catalyst and the preparation of solution method polymerization technique, has snappiness, wearing quality and flexibility.
(embodiment 7)
The thermoplastic elastic material of present embodiment is made by following component:
(1) material of main part is that mass percent is 58% crosslinkable terpolymer EP rubber;
(2) main weighting agent is that mass percent is 8% polypropylene;
(3) toughner is 27.5% POE and SEBS for total mass per-cent;
(4) inferior weighting agent is linking agent, softening agent and oxidation inhibitor, and linking agent is 2% disulphide, and softening agent is 3% white oil, and oxidation inhibitor is 1.5% BHT.
(embodiment 8)
The plug of present embodiment has the neck of superposed bizet and bottom for processing gets through Shooting Technique with the thermoplastic elastic material among the embodiment 1 to embodiment 7.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a thermoplastic elastic material is characterized in that: be made up of material of main part, main weighting agent, toughner and inferior weighting agent; Material of main part is an ethylene-propylene rubber(EPR); Main weighting agent comprises polypropylene; Toughner comprises styrene ethylene-butylene-styrene segmented copolymer (SEBS); The weight percent of moiety is as follows:
Material of main part: 40 ~ 60%
Main weighting agent: 8 ~ 27%
Toughner: 25 ~ 35%
Inferior weighting agent: 0 ~ 6.5%.
2. thermoplastic elastic material according to claim 1 is characterized in that: described material of main part is one or both of crosslinkable terpolymer EP rubber, ethylene propylene rubber.
3. thermoplastic elastic material according to claim 1 and 2 is characterized in that: described main weighting agent also comprises polystyrene.
4. thermoplastic elastic material according to claim 3 is characterized in that: the weight proportion of composing of described main weighting agent is: polypropylene: polystyrene=3: 2.
5. thermoplastic elastic material according to claim 4 is characterized in that: described toughner also comprise styrene-butadiene-styrene block copolymer (SBS), polyethylene octene elastomer (POE), second third elastomerics (Vistamaxx) wherein one or more.
6. thermoplastic elastic material according to claim 5 is characterized in that: described weighting agent comprise softening agent, oxidation inhibitor, linking agent wherein one or more.
7. thermoplastic elastic material according to claim 6 is characterized in that: the weight percent of the softening agent of described weighting agent is less than 3%, comprise white oil, fragrant hydrocarbon ils, naphthenic oil wherein one or more.
8. thermoplastic elastic material according to claim 6, it is characterized in that: the weight percent of the oxidation inhibitor of described weighting agent is less than 1.5%, comprise 2.6-ditertbutylparacresol (BHT), 3,5-di-t-butyl-4 hydroxy phenyl propionic acid octadecanol ester, four [methyl-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester wherein one or more.
9. thermoplastic elastic material according to claim 6 is characterized in that: the weight percent of the linking agent of described weighting agent is less than 2%, comprise superoxide, sulphur, disulphide wherein one or more.
10. a plug comprises bizet and neck; It is characterized in that: described plug is that the thermoplastic elastic material described in the aforementioned claim processes by Shooting Technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103108178A CN102086287A (en) | 2009-12-03 | 2009-12-03 | Thermoplastic elastomer material and plastic plug made of same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103108178A CN102086287A (en) | 2009-12-03 | 2009-12-03 | Thermoplastic elastomer material and plastic plug made of same |
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| CN102086287A true CN102086287A (en) | 2011-06-08 |
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| CN2009103108178A Pending CN102086287A (en) | 2009-12-03 | 2009-12-03 | Thermoplastic elastomer material and plastic plug made of same |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850671A (en) * | 2012-09-27 | 2013-01-02 | 应城市恒天药业包装有限公司 | Oral liquid rubber plug material and preparation method thereof |
| CN103642136A (en) * | 2013-12-06 | 2014-03-19 | 应城市恒天药业包装有限公司 | Rubber plug material for freeze-dried medicines and preparation method thereof |
| CN103724789A (en) * | 2013-12-24 | 2014-04-16 | 深圳市盛嘉伦橡塑工业有限公司 | Thermoplastic elastomer toy material and preparation method thereof |
| CN103724843A (en) * | 2013-12-06 | 2014-04-16 | 应城市恒天药业包装有限公司 | Rubber plug material for penicillin drugs and preparation method thereof |
| CN104387626A (en) * | 2014-10-28 | 2015-03-04 | 郑州翱翔医药科技股份有限公司 | Transparent rubber pad of heparin cap for remaining needle and production method of transparent rubber pad |
| CN104387676A (en) * | 2014-10-29 | 2015-03-04 | 苏州新区枫盛塑料制品厂 | Thermoplastic elastomer formula |
| CN105273416A (en) * | 2015-12-01 | 2016-01-27 | 天津鹏翎胶管股份有限公司 | EPDM composition, rubber air filter pipe and preparation method thereof |
| CN106893208A (en) * | 2017-03-29 | 2017-06-27 | 威海联桥新材料科技股份有限公司 | A kind of thermoplastic syringe Rubber plug material and its production method |
| WO2018130200A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing method, high-strength product applying composite, and manufacturing method |
| CN109401340A (en) * | 2018-11-28 | 2019-03-01 | 浙江定阳新材料有限公司 | A kind of non-fading food-grade plastic resilient runway and its manufacture craft |
| CN109504101A (en) * | 2018-11-28 | 2019-03-22 | 浙江定阳新材料有限公司 | A kind of thermoplastic elastic runway and its manufacture craft with antibacterial functions |
| CN109535742A (en) * | 2018-11-28 | 2019-03-29 | 浙江定阳新材料有限公司 | A kind of the HTPE plastic resilient runway and its manufacture craft of recyclable reconstruction |
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2009
- 2009-12-03 CN CN2009103108178A patent/CN102086287A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102850671B (en) * | 2012-09-27 | 2014-11-05 | 应城市恒天药业包装有限公司 | Oral liquid rubber plug material and preparation method thereof |
| CN102850671A (en) * | 2012-09-27 | 2013-01-02 | 应城市恒天药业包装有限公司 | Oral liquid rubber plug material and preparation method thereof |
| CN103642136A (en) * | 2013-12-06 | 2014-03-19 | 应城市恒天药业包装有限公司 | Rubber plug material for freeze-dried medicines and preparation method thereof |
| CN103724843A (en) * | 2013-12-06 | 2014-04-16 | 应城市恒天药业包装有限公司 | Rubber plug material for penicillin drugs and preparation method thereof |
| CN103724789B (en) * | 2013-12-24 | 2016-09-14 | 盛嘉伦橡塑(深圳）股份有限公司 | Thermoplastic elastomer toy material and preparation method thereof |
| CN103724789A (en) * | 2013-12-24 | 2014-04-16 | 深圳市盛嘉伦橡塑工业有限公司 | Thermoplastic elastomer toy material and preparation method thereof |
| CN104387626A (en) * | 2014-10-28 | 2015-03-04 | 郑州翱翔医药科技股份有限公司 | Transparent rubber pad of heparin cap for remaining needle and production method of transparent rubber pad |
| CN104387676A (en) * | 2014-10-29 | 2015-03-04 | 苏州新区枫盛塑料制品厂 | Thermoplastic elastomer formula |
| CN105273416A (en) * | 2015-12-01 | 2016-01-27 | 天津鹏翎胶管股份有限公司 | EPDM composition, rubber air filter pipe and preparation method thereof |
| WO2018130200A1 (en) * | 2017-01-13 | 2018-07-19 | 杭州星庐科技有限公司 | Rubber composite, processing method, high-strength product applying composite, and manufacturing method |
| CN106893208A (en) * | 2017-03-29 | 2017-06-27 | 威海联桥新材料科技股份有限公司 | A kind of thermoplastic syringe Rubber plug material and its production method |
| CN109401340A (en) * | 2018-11-28 | 2019-03-01 | 浙江定阳新材料有限公司 | A kind of non-fading food-grade plastic resilient runway and its manufacture craft |
| CN109504101A (en) * | 2018-11-28 | 2019-03-22 | 浙江定阳新材料有限公司 | A kind of thermoplastic elastic runway and its manufacture craft with antibacterial functions |
| CN109535742A (en) * | 2018-11-28 | 2019-03-29 | 浙江定阳新材料有限公司 | A kind of the HTPE plastic resilient runway and its manufacture craft of recyclable reconstruction |
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Application publication date: 20110608 |