CN101696302B - Self-lubricating polypropylene compound material for manufacturing medical injectors - Google Patents
Self-lubricating polypropylene compound material for manufacturing medical injectors Download PDFInfo
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- CN101696302B CN101696302B CN2009101934332A CN200910193433A CN101696302B CN 101696302 B CN101696302 B CN 101696302B CN 2009101934332 A CN2009101934332 A CN 2009101934332A CN 200910193433 A CN200910193433 A CN 200910193433A CN 101696302 B CN101696302 B CN 101696302B
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Abstract
The invention discloses a self-lubricating polypropylene compound material for medical injectors and a preparation method thereof. The compound material comprises the following components in part by weight: 100 parts of acrylic resin and 0.1 to 3 parts of lubricant, wherein the lubricant is one or both of silicone oil and polytetrafluoroethylene micropowder. The preparation method comprises the steps of: mixing the acrylic resin and the lubricant evenly, adding the mixture into a twin screw extruder, and mixing, extruding, cooling, drying and granulating the mixture to obtain the self-lubricating polypropylene compound material. The self-lubricating polypropylene compound material adopts raw materials which can be applied in the medical field, and all performances meet national standards in polypropylene special material used for medical transfusion, blood transfusion and injectors. An injector jacket prepared by the method has excellent self-lubricating property; and by a simple preparation process, the coating procedure at the later stage is saved, so that the converging phenomenon caused by coating an improper amount of the lubricant at the later stage is avoided, and the production efficiency is improved.
Description
Technical field
The invention belongs to macromolecular material and forming process field thereof, particularly a kind of polypropylene composite material that can be used for medical syringe of self lubricity excellence.
Background technology
Plastic injector is compared with traditional glass syringe, has nontoxic, aseptic, no pyrogeneous substance, can prevent to sterilize bad cross infection that causes and advantage such as easy to operate, and be widely used in medical field.The ordinary syringe profile is divided into two formulas and three-member type at present, and two relative three-member types of formula have been saved the rubber piston part on forming, only be made up of syringe jacket and core bar.At the service requirements of syringe, its lagging material must have the excellent transparency to guarantee to have no the scale value that reads of difficulty, has enough low friction resistance simultaneously between overcoat and core bar surface, to ensure carrying out smoothly of injection.
In the syringe production process of three-piece construction, often will be at rubber piston and overcoat internal surface spraying lubricant, and requirement must not have obvious visible lubricant to converge, and can use.And in the structure of two-piece type, the top of core bar need be designed to certain thickness cylindrical shape structure, contact closely thereby play with the overcoat rounded internal surface, the replacement rubber piston plays the effect of airtight injection liquid, but this syringe jacket internal surface need spray lubricant equally.In actual production, tend to run into amounts of lubrication and spray inappropriate situation, if spraying dosage is many, just can see tangible lubricant gathering with the pause of core bar at the internal surface of syringe jacket.Even more serious, after spraying, push-and-pull is core bar several times, after lubricant is all scraped two ends, and the obvious variation of sliding of core bar and outer inner room.
Summary of the invention
For overcoming the deficiency that above-mentioned prior art exists, the invention provides a kind of self-lubricating polypropylene compound material that is used to make medical syringe, this material has the excellent transparency and good self lubricity, can be used for the medical syringe overcoat.
Another purpose of the present invention is to provide a kind of preparation method of above-mentioned matrix material.
Purpose of the present invention is achieved through the following technical solutions: a kind of self-lubricating polypropylene compound material that is used to make medical syringe, it is characterized in that: this self-lubricating polypropylene compound material, form by following components by weight portions: 0.1～3 part of 100 parts of acrylic resins and lubricant; Described lubricant is one or both in silicone oil (organopolysiloxane) and the ptfe micropowder.
Described acrylic resin is homo-polypropylene or the atactic copolymerized polypropene that can be applicable to medical field; The melt temperature of described acrylic resin is 140～165 ℃, and they are under 230 ℃ of conditions, and the melt flow rate (MFR) of 2.16kg is 5～50g/10min.
Described acrylic resin preferably can be applicable to the atactic copolymerized polypropene of medical field; Described acrylic resin is under 230 ℃ of conditions, and the melt flow rate (MFR) of 2.16kg is 15～30g/10min.
Described silicone oil is methyl-silicone oil, dimethyl silicone oil, Methyl Hydrogen Polysiloxane Fluid, methyl phenyl silicone oil; The particle size range of described ptfe micropowder is 2～10 μ m.
The described silicone oil preferably range of viscosities under 25 ℃ is 350～150, the dimethyl silicone oil of 000mPas; Preferred 3～6 μ m of the particle size range of described ptfe micropowder.
Range of viscosities under preferred 25 ℃ of the described dimethyl silicone oil is 50,000～100,000mPas.
Above-mentioned a kind of preparation method who is used to make the self-lubricating polypropylene compound material of medical syringe, comprise following operation steps: after acrylic resin, lubricant, transparent nucleater and oxidation inhibitor are mixed, join in the twin screw extruder, mixing, extrude cooling, drying, granulation obtains self-lubricating polypropylene compound material.
The relative prior art of the present invention has following advantage and beneficial effect:
(1) polypropylene composite material of the present invention takes can be applicable to the raw material of medical field, and every performance satisfies the national standard of " medical infusion, blood transfusion, syringe polypropylene dedicated material ".
(2) report that ptfe micropowder is added to preparation medical material in the acrylic resin as lubricant is not arranged as yet in the prior art, matrix material of the present invention adds the ptfe micropowder lubricant in acrylic resin, itself has high lubricity ptfe micropowder, and to the human body nontoxicity, the synthesis of medical material that can be used for implanting; Prepared syringe jacket has excellent self lubricity, has removed the spraying process in later stage, thereby has avoided the phenomenon that converges that causes because of later stage spraying amounts of lubrication is improper, and enhances productivity.
(3) the present invention fills a prescription rationally, technology is simple, only needs to add ptfe micropowder lubricant or organopolysiloxane in acrylic resin, through processing technology commonly used, can obtain the matrix material of stable performance, satisfy the standard of medical injection modulator material well.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but the working of an invention mode is not limited thereto.
Embodiment 1
(melt temperature is 140 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, 2.16kg melt flow rate (MFR) be 18g/10min) and 1.2 weight part ptfe micropowders (particle diameter 6 μ m), after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude, cooling, drying, granulation, packing obtains a kind of self-lubricating polypropylene compound material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Embodiment 2
(melt temperature is 165 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, 2.16kg melt flow rate (MFR) be 30g/10min) and 1.6 weight part ptfe micropowders (particle diameter 3 μ m), after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude, cooling, drying, granulation, packing promptly obtains a kind of self-lubricating polypropylene compound material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Embodiment 3
(melt temperature is 150 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, 2.16kg melt flow rate (MFR) be 30g/10min) and 0.8 weight part dimethyl silicone oil (viscosity 60,000mPas), after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude cooling, dry, granulation, packing promptly obtains a kind of self-lubricating polypropylene compound material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Embodiment 4
(melt temperature is 145 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, 2.16kg melt flow rate (MFR) be 30g/10min) and 0.6 weight part dimethyl silicone oil (viscosity 100,000mPas), after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude cooling, dry, granulation, packing promptly obtains a kind of self-lubricating polypropylene compound material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Embodiment 5
With 100 weight part acrylic resins (melt temperature be 160 ℃ under 230 ℃ of conditions, 2.16kg melt flow rate (MFR) be 15g/10min) and 2 weight part methyl-silicone oils (viscosity 150,000mPas), after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude cooling, dry, granulation, packing promptly obtains a kind of self-lubricating polypropylene compound material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Embodiment 6
(melt temperature is 155 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, 2.16kg melt flow rate (MFR) be 10g/10min) and H0.8 weight part Methyl Hydrogen Polysiloxane Fluid (viscosity 80,000mPas), after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude cooling, dry, granulation, packing promptly obtains a kind of self-lubricating polypropylene compound material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Embodiment 7
To the matrix material of embodiment 5 preparations, carry out chemical property and biological property and detect, the result is as shown in table 1.
The chemical property of table 1 matrix material of the present invention and biological property detected result
The comparative example 1
(melt temperature is 140 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, the melt flow rate (MFR) of 2.16kg is 18g/10min), 1.2 weight part ptfe micropowders (particle diameter 6 μ m) and 0.3 weight part oxidation inhibitor 1,3,5-trimethylammonium-2,4,6-three (3.5-di-t-butyl-4-alkyl benzyl) benzene, after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude, cooling, drying, granulation, packing obtains a kind of polypropylene composite material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
The comparative example 2
(melt temperature is 165 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, the melt flow rate (MFR) of 2.16kg is 25g/10min), 1.2 weight part ptfe micropowders (particle diameter 6 μ m), 0.5 weight part transparent nucleater 3,4-dimethyl dibenzylidene sorbitol and 0.1 weight part oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude, cooling, drying, granulation, packing obtains a kind of polypropylene composite material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
The comparative example 3
(melt temperature is 150 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, the melt flow rate (MFR) of 2.16kg is 30g/10min), 0.5 weight part transparent nucleater 3,4-dimethyl dibenzylidene sorbitol and 0.1 weight part oxidation inhibitor three (2, the 4-di-tert-butyl-phenyl) phosphorous acid ester, after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude, cooling, drying, granulation, packing obtains a kind of polypropylene composite material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
The comparative example 4
(melt temperature is 150 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, the melt flow rate (MFR) of 2.16kg is 30g/10min), 0.5 weight part transparent nucleater 2,2-methylene-bis (4, the 6-t-butyl-phenyl) two (2, the 4-di-tert-butyl-phenyl) pentaerythritol esters of sodium phosphate and 0.1 weight part diphosphorous acid are after mixing in high-speed mixer, join in the twin screw extruder, mixing, extrude cooling, dry, granulation, packing obtains a kind of polypropylene composite material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
The comparative example 5
(melt temperature is 150 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, the melt flow rate (MFR) of 2.16kg is 30g/10min) and 1.2 weight part amine hydroxybenzenes, after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude cooling, drying, granulation, packing obtains a kind of polypropylene composite material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
The comparative example 6
(melt temperature is 150 ℃ with 100 weight part acrylic resins; Under 230 ℃ of conditions, the melt flow rate (MFR) of 2.16kg is 30g/10min) and 1 weight account polyethylene wax PE190, after in high-speed mixer, mixing, join in the twin screw extruder, mixing, extrude cooling, drying, granulation, packing obtains a kind of polypropylene composite material.
The tensile strength of gained polypropylene composite material, modulus in flexure, notched izod are impacted strong, mist degree, static friction coefficient and kinetic friction coefficient test, the results are shown in Table 2.
Table 2 self-lubricating polypropylene compound material physicals of the present invention test result
Annotate: the test of frictional coefficient, choose the polyethylene (SHORE D is 62) that can be applicable to syringe core rod and carry out for the test relative material.
As seen from Table 2, comparative example 1 and 2 has added oxidation inhibitor and nucleator on basis of the present invention, and gained matrix material and composite property of the present invention are similar, but kinetic friction coefficient is high slightly; Do not add lubricant among the comparative example 3 and 4, the obvious variation of lubricity; Comparative example 5 and 6 has added other types lubricants such as amine hydroxybenzene and polyethylene wax, and the lubricity of prepared matrix material still far is worse than the lubricity of the matrix material of the inventive method preparation.
Above-mentioned preparation embodiment is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.Method involved in the present invention in addition also can be applicable in the syringe core rod preparing raw material.
Claims (7)
1. self-lubricating polypropylene compound material that is used to make medical syringe is characterized in that: this self-lubricating polypropylene compound material, form by following components by weight portions: 0.1～3 part of 100 parts of acrylic resins and lubricant; Described lubricant is one or both in silicone oil and the ptfe micropowder.
2. a kind of self-lubricating polypropylene compound material that is used to make medical syringe according to claim 1 is characterized in that: described acrylic resin is homo-polypropylene or atactic copolymerized polypropene; The melt temperature of described acrylic resin is 140～165 ℃, and they are under 230 ℃ of conditions, and the melt flow rate (MFR) of 2.16kg is 5～50g/10min.
3. a kind of self-lubricating polypropylene compound material that is used to make medical syringe according to claim 2 is characterized in that: described acrylic resin is an atactic copolymerized polypropene; Described acrylic resin is under 230 ℃ of conditions, and the melt flow rate (MFR) of 2.16kg is 15～30g/10min.
4. a kind of self-lubricating polypropylene compound material that is used to make medical syringe according to claim 1 is characterized in that: described silicone oil is methyl-silicone oil, dimethyl silicone oil, Methyl Hydrogen Polysiloxane Fluid, methyl phenyl silicone oil; The particle size range of described ptfe micropowder is 2～10 μ m.
5. a kind of self-lubricating polypropylene compound material that is used to make medical syringe according to claim 4 is characterized in that: described silicone oil is 350～150 for the range of viscosities under 25 ℃, the dimethyl silicone oil of 000mPas; The particle size range of described ptfe micropowder is 3～6 μ m.
6. a kind of self-lubricating polypropylene compound material that is used to make medical syringe according to claim 5 is characterized in that: the range of viscosities of described dimethyl silicone oil under 25 ℃ is 50,000～100,000mPas.
7. a kind of preparation method who is used to make the self-lubricating polypropylene compound material of medical syringe according to claim 1, it is characterized in that comprising following operation steps: with acrylic resin and mix lubricant evenly after, join in the twin screw extruder, mixing, extrude cooling, drying, granulation obtains self-lubricating polypropylene compound material.
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| CN2009101934332A CN101696302B (en) | 2009-10-29 | 2009-10-29 | Self-lubricating polypropylene compound material for manufacturing medical injectors |
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| CN2009101934332A CN101696302B (en) | 2009-10-29 | 2009-10-29 | Self-lubricating polypropylene compound material for manufacturing medical injectors |
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| CN101696302B true CN101696302B (en) | 2011-05-11 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276932B (en) * | 2011-08-03 | 2013-03-13 | 广州市合诚化学有限公司 | Pull-tab outer cover material used for infusion bottles or bags and preparation method thereof |
| CN105482264B (en) * | 2015-12-17 | 2018-10-16 | 东莞市顶好新材料科技有限公司 | A kind of preparation method of rigid transparent PP industry planks |
| CN106674744A (en) * | 2016-12-26 | 2017-05-17 | 安徽元通采暖科技有限公司 | Polypropylene aseptic composite material for outer cylinder of medical syringe |
| CN108587167A (en) * | 2018-03-22 | 2018-09-28 | 安徽皖东树脂科技有限公司 | A kind of infusion medical resin and preparation method |
| CN108485273A (en) * | 2018-04-18 | 2018-09-04 | 山东济海医疗科技股份有限公司 | The production method of disposable syringe self-lubricating piston |
| CN109288562B (en) * | 2018-09-21 | 2021-04-16 | 上海康德莱企业发展集团股份有限公司 | Puncture outfit for endoscopic surgery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1156075A2 (en) * | 2000-05-17 | 2001-11-21 | Schott Glas | Process for surface treatment of polyolefins for reducing static and dynamic friction forces |
| CN101519512A (en) * | 2009-03-24 | 2009-09-02 | 山东威高集团医用高分子制品股份有限公司 | Polypropylene composite material |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1156075A2 (en) * | 2000-05-17 | 2001-11-21 | Schott Glas | Process for surface treatment of polyolefins for reducing static and dynamic friction forces |
| CN101519512A (en) * | 2009-03-24 | 2009-09-02 | 山东威高集团医用高分子制品股份有限公司 | Polypropylene composite material |
Non-Patent Citations (1)
| Title |
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| JP特开2008-255326A 2008.10.23 |
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Address after: 510530 603-604, Guangsheng international building, 17 Zhujiang West Road, Tianhe District, Guangzhou City, Guangdong Province Patentee after: Hecheng Technology Co.,Ltd. Address before: 515300 No.8 Yuncheng Road, YUNPU Industrial Zone, Luogang District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU HONSEA CHEMISTRY Co.,Ltd. |