CN103232623A - Rubber syringe needle protective cap for pre-encapsulation injection syringe and production method thereof - Google Patents
Rubber syringe needle protective cap for pre-encapsulation injection syringe and production method thereof Download PDFInfo
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- CN103232623A CN103232623A CN2013101746132A CN201310174613A CN103232623A CN 103232623 A CN103232623 A CN 103232623A CN 2013101746132 A CN2013101746132 A CN 2013101746132A CN 201310174613 A CN201310174613 A CN 201310174613A CN 103232623 A CN103232623 A CN 103232623A
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Abstract
The invention discloses a rubber syringe needle protective cap for a pre-encapsulation injection syringe. The protective cap is prepared from the following raw materials in parts by weight: 100 parts of synthesized polyisoprene rubber, 5-30 parts of alkaline white carbon black, 20-70 parts of calcined kaolin, 0.3-1.2 parts of peroxide, 0.5-1.0 part of stearic acid, 5-20 parts of polytetrafluoroethylene micro powder, 5-20 parts of ultra-high molecular weight polyethylene micro powder, 1-5 parts of titanium dioxide and 1-3 parts of carbon black. The rubber syringe needle protective cap has the obvious characteristics that a clean and simple peroxide sulfuration system is adopted, and a conventional complicated sulfur and zinc oxide promotion system is avoided. Special alkaline fillers are adopted, the sulfuration degree and speed of rubber are improved, and a smell problem caused by adopting the peroxide to sulfurate the polyisoprene rubber is reduced. The polytetrafluoroethylene micro powder and the ultra-high molecular weight polyethylene micro powder with good inertness and dispersibility are added into a formula, the lubricity and chemical inertness of the rubber are improved, and the viscous resistance of a rubber syringe needle protective cap product is improved.
Description
Technical field
The invention belongs to pre-encapsulated injector with rubber accessory field, relate in particular to a kind of pre-encapsulated injector rubber needle helmet and production method thereof.
Background technology
Tradition pre-encapsulated injector rubber needle helmet, adopt traditional Sulfur of natural rubber or polyisoprene rubber, zinc oxide promotes system, for improving vulcanization rate, state of vulcanization and sulfuration efficient, usually adopt the Sulfur of high-content, also use sulfenamide and thiuram type accelerator, in process of production, the use of these materials is easy to cause rubber helmet " sulfuring up " phenomenon, the finished product ultraviolet absorptivity of making and reducing substance and pH changing value are easy to exceed standard, so need carry out the high pressure extracting to product with certain density bronsted lowry acids and bases bronsted lowry usually handles, the production process complexity is loaded down with trivial details, causes product contamination and environmental pollution easily.So, develop that a kind of Recipe is simple, the pre-encapsulated injector of energy-conserving and environment-protective is with rubber needle helmet production method, and is necessary.
Summary of the invention
It is at the deficiency in the background technology that the present invention wants the technical solution problem, and the pre-encapsulated injector that a kind of recipe ingredient is simple, technical process is short, product performance are high rubber needle helmet and production method thereof are provided.
In order to address the above problem by the following technical solutions: a kind of pre-encapsulated injector rubber needle helmet is formed by the raw material preparing of following weight part: 100 parts of synthetic polyisoprenes rubber, alkaline white carbon black 5-30 part, calcined kaolin 20-70 part, superoxide 0.3-1.2 part, stearic acid 0.5-1.0 part, ptfe micropowder 5-20 part, ultrahigh molecular weight polyethylene(UHMWPE) micro mist 5-20 part, titanium dioxide 1-5 part, carbon black 0.1-3 part.
Described superoxide is dicumyl peroxide, two (tert-butyl peroxide) diisopropylbenzene(DIPB), 2,5-diethyl-2,5-two (tert-butyl peroxide) hexane, t-tutyl cumyl peroxide or 2,5-dimethyl-2,5-two (tert-butyl peroxide)-3-hexane.
Production stage is as follows:
Batching: according to the selected starting material of above-mentioned weight part, cooperate, weighing is standby;
Banburying: adopt powerful adding pressure type Banbury mixer that the starting material that prepare are mixed, the banbury cycle time, the actual temperature of banburying sizing material was at 90-110 ℃ at 5-8 minute, and it is standby to make rubber unvulcanizate;
Open and produce bar: on opening rubber mixing machine rubber unvulcanizate is cut into strip, parked 8-24 hour, it is standby to make the batch mixing adhesive tape;
Injection moulding vulcanization: mixing adhesive tape is put into the injection molding rubber vulcanizing machine, adopt high temperature fast injection molding sulfuration process, sulfurizing temperature range is at 175-195 ℃, sulfide stress is 200-240bar, the sulfuration clamp force is 400 tons, and the screw tube temperature is 50-80 ℃, and the injection tube temperature is 70-90 ℃, the cold runner temperature is 70-90 ℃, and it is standby to make sulfide film;
Die-cut: under clean environment, adopt stamping machine and matching die that sulfide film is carried out die-cut processing, it is standby to make the rubber needle helmet;
Cleaning, drying is handled: under clean environment, adopt medicinal rubber goods cleaning machine, the rubber needle helmet is carried out cleaning, drying handle.
Described synthetic polyisoprenes rubber, can select Z-type catalyst type and alkyl lithium catalyst type synthetic polyisoprenes rubber for use, IR2200 such as the NIPIL of Japan auspicious father-in-law (ZEON) company, and the SKI-5pm of Russian NIZHNEKAMSK NEFTEKHIM company, and the IR307 of KARTON company etc. rises in U.S. section.From whole performance relatively, the IR307 of KARTON company rises in preferred U.S. section.
The alkalescence white carbon black mainly is in order to improve the intensity of sizing material, simultaneously can with peroxide cure system compatibility well, improve vulcanization rate and degree, the unpleasant odor that reduces or avoid producing because of the peroxide cure system; Be 9.9 alkaline white carbon black MD1250 etc. such as the PH that adopts U.S. NYCO company.
Calcined kaolin can be selected general druggist rubber sundries calcined kaolin.
Superoxide is preferred 2,5-diethyl-2,5-two (tert-butyl peroxide) hexane.
The preferred medical grade stearic acid of stearic acid.
Because ptfe micropowder itself has low viscosity and frictional force is little, thereby can improve the Rubber processing performance, improves release property, improves the non-stick property of rubber needle helmet goods simultaneously.Select the median size of polytetrafluoroethylene PTFE micro mist usually at the 3-5 micron, such as the F5A that can select Solvay Solexis company, and the PTFE L-5F of DAIKIN company.
Ultrahigh molecular weight polyethylene(UHMWPE) UHMPE micro mist is added in the rubber compounding, can improve many performances such as oilness, wearability, shock-resistance, chemical proofing.Select the median size of ultrahigh molecular weight polyethylene(UHMWPE) UHMPE micro mist usually at the 25-30 micron, such as the XM-220 that can select Mitsui chemicals company.
Titanium dioxide can be selected Rutile type Titanium Dioxide and anatase thpe white powder.
The present invention has following distinguishing feature: adopt very clean simple peroxide vulcanizing system, avoided the Sulfur of traditional complexity, zinc oxide to promote system.Adopt special-purpose basic filler, improve state of vulcanization and the speed of sizing material, reduce that polyisoprene rubber adopts peroxide cure and the smell problem that produces.In prescription, add inertia and dispersed well ptfe micropowder and ultrahigh molecular weight polyethylene(UHMWPE) micro mist, improve oilness and the unreactiveness of sizing material, improve the non-stick property of rubber needle helmet goods.Adopt the new die design concept, the sulfurizing mould surface has been adopted electroplate titanium nitride or the processing of chromium layer, improved the release property of rubber needle helmet, adopted the plain class releasing agent of efficient fluorine to improve the release property of rubber needle helmet simultaneously.
Embodiment
The present invention is described further in conjunction with object lesson.
Embodiment 1: a kind of pre-encapsulated injector rubber needle helmet, production stage is as follows: A, batching: accurately take by weighing synthetic polyisoprenes rubber 100 weight parts, MD1250 alkalescence white carbon black 20 weight parts, calcined kaolin 50 weight parts, superoxide 1.0 weight parts, stearic acid 1.0 weight parts, ptfe micropowder 5 weight parts, ultrahigh molecular weight polyethylene(UHMWPE) micro mist 10 weight parts, titanium dioxide 3 weight parts, carbon black 0.5 weight part, and standby.
B, banburying: adopt the powerful adding pressure type Banbury mixer of 55 liters of capacity that load weighted starting material are mixed, banbury cycle was at 8 minutes, and the actual temperature of banburying sizing material is at 100-110 ℃, and it is standby to make rubber unvulcanizate.
C, open and produce bar: on the XK-550A opening rubber mixing machine rubber unvulcanizate is cut into strip, parked 8-24 hour, it is standby to make mixing adhesive tape.
D, injection moulding vulcanization: mixing adhesive tape is put into German DESMA injection molding rubber vulcanizing machine, adopt high temperature fast injection molding sulfuration process, sulfurizing temperature range is at 180-185 ℃, curing time is in 360-420 second, and sulfide stress is 240bar, and the sulfuration clamp force is 400 tons, the screw tube temperature is 80 ℃, the injection tube temperature is 90 ℃, and the cold runner temperature is 90 ℃, and it is standby to make sulfide film.Adopt electrodeposited chromium layers to handle to the sulfurizing mould surface, improved the release property of rubber needle helmet, adopt simultaneously and spray the release property that the plain class releasing agent of efficient fluorine improves the rubber needle helmet in the sulfidation.
E, die-cut: under clean environment, adopt special-purpose stamping machine and matching die that sulfide film is carried out die-cut processing, it is standby to make the rubber needle helmet.
F, cleaning, drying handle: under clean environment, adopt the medicinal rubber goods cleaning machine of German HUBER company special use, product is carried out cleaning, drying handle.
The pre-encapsulated injector of Sheng Chaning rubber needle helmet according to the method described above, operation is simple, need not be again through complicated soda acid extracting treatment process, quality product can satisfy physics, chemistry and the biological property requirement that the YBB00102004 pre-encapsulated injector is used polyisoprene rubber syringe needle helmet.
Embodiment 2-7 is according to the method for embodiment 1 and step, and is as shown in table 1 according to the recipe ingredient requirement of above-mentioned pre-encapsulated injector with the rubber needle helmet, makes pre-encapsulated injector of the present invention rubber needle helmet.
Table 1
The pre-encapsulated injector rubber needle helmet that embodiment 2-7 produces, quality product can satisfy physics, chemistry and the biological property requirement that the YBB00102004 pre-encapsulated injector is used polyisoprene rubber syringe needle helmet.
Embodiment 8: a kind of pre-encapsulated injector rubber needle helmet is formed by the raw material preparing of following weight part: 100 parts of synthetic polyisoprenes rubber, alkaline white carbon black 5-30 part, calcined kaolin 20-70 part, superoxide 0.3-1.2 part, stearic acid 0.5-1.0 part, ptfe micropowder 5-20 part, ultrahigh molecular weight polyethylene(UHMWPE) micro mist 5-20 part, titanium dioxide 1-5 part, carbon black 0.1-3 part.
Production stage is as follows:
A, batching: according to the selected starting material of above-mentioned weight part, cooperate, weighing is standby;
B, banburying: adopt powerful adding pressure type Banbury mixer that the starting material that prepare are mixed, the banbury cycle time, the actual temperature of banburying sizing material was at 90-110 ℃ at 5-8 minute, and it is standby to make rubber unvulcanizate;
C, open and produce bar: on opening rubber mixing machine rubber unvulcanizate is cut into strip, parked 8-24 hour, it is standby to make the batch mixing adhesive tape;
D, injection moulding vulcanization: mixing adhesive tape is put into the injection molding rubber vulcanizing machine, adopt high temperature fast injection molding sulfuration process, sulfurizing temperature range is at 175-195 ℃, sulfide stress is 200-240bar, the sulfuration clamp force is 400 tons, and the screw tube temperature is 50-80 ℃, and the injection tube temperature is 70-90 ℃, the cold runner temperature is 70-90 ℃, and it is standby to make sulfide film;
E, die-cut: under clean environment, adopt stamping machine and matching die that sulfide film is carried out die-cut processing, it is standby to make the rubber needle helmet;
F, cleaning, drying are handled: under clean environment, adopt medicinal rubber goods cleaning machine, the rubber needle helmet is carried out cleaning, drying handle.
Embodiment 9: a kind of pre-encapsulated injector rubber needle helmet is formed by the raw material preparing of following weight part: 100 parts of synthetic polyisoprenes rubber, alkaline white carbon black 10-20 part, calcined kaolin 40-50 part, superoxide 0.8-1.0 part, stearic acid 0.7-1.0 part, ptfe micropowder 10-15 part, ultrahigh molecular weight polyethylene(UHMWPE) micro mist 10-15 part, titanium dioxide 3-5 part, carbon black 0.1-1 part.
Other are with embodiment 8.
Claims (3)
1. a pre-encapsulated injector rubber needle helmet is characterized in that being formed by the raw material preparing of following weight part: 100 parts of synthetic polyisoprenes rubber, alkaline white carbon black 5-30 part, calcined kaolin 20-70 part, superoxide 0.3-1.2 part, stearic acid 0.5-1.0 part, ptfe micropowder 5-20 part, ultrahigh molecular weight polyethylene(UHMWPE) micro mist 5-20 part, titanium dioxide 1-5 part, carbon black 0.1-3 part.
2. pre-encapsulated injector according to claim 1 rubber needle helmet, it is characterized in that: described superoxide is dicumyl peroxide, two (tert-butyl peroxide) diisopropylbenzene(DIPB), 2,5-diethyl-2,5-two (tert-butyl peroxide) hexane, t-tutyl cumyl peroxide or 2,5-dimethyl-2,5-two (tert-butyl peroxide)-3-hexane.
3. pre-encapsulated injector according to claim 1 rubber needle helmet is characterized in that production stage is as follows:
Batching: according to the selected starting material of above-mentioned weight part, cooperate, weighing is standby;
Banburying: adopt powerful adding pressure type Banbury mixer that the starting material that prepare are mixed, the banbury cycle time, the actual temperature of banburying sizing material was at 90-110 ℃ at 5-8 minute, and it is standby to make rubber unvulcanizate;
Open and produce bar: on opening rubber mixing machine rubber unvulcanizate is cut into strip, parked 8-24 hour, it is standby to make the batch mixing adhesive tape;
Injection moulding vulcanization: mixing adhesive tape is put into the injection molding rubber vulcanizing machine, adopt high temperature fast injection molding sulfuration process, sulfurizing temperature range is at 175-195 ℃, sulfide stress is 200-240bar, the sulfuration clamp force is 400 tons, and the screw tube temperature is 50-80 ℃, and the injection tube temperature is 70-90 ℃, the cold runner temperature is 70-90 ℃, and it is standby to make sulfide film;
Die-cut: under clean environment, adopt stamping machine and matching die that sulfide film is carried out die-cut processing, it is standby to make the rubber needle helmet;
Cleaning, drying is handled: under clean environment, adopt medicinal rubber goods cleaning machine, the rubber needle helmet is carried out cleaning, drying handle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310174613.2A CN103232623B (en) | 2013-05-13 | 2013-05-13 | Rubber syringe needle protective cap for pre-encapsulation injection syringe and production method thereof |
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| CN201310174613.2A CN103232623B (en) | 2013-05-13 | 2013-05-13 | Rubber syringe needle protective cap for pre-encapsulation injection syringe and production method thereof |
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| CN103232623B CN103232623B (en) | 2015-07-15 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104744745A (en) * | 2015-03-04 | 2015-07-01 | 安徽华峰医药橡胶有限公司 | Polyisoprene gasket directly contacted with medicinal liquor |
| CN104744744A (en) * | 2015-03-04 | 2015-07-01 | 安徽华峰医药橡胶有限公司 | Polyisoprene gasket synthesized by medicinal film |
| CN106317507A (en) * | 2016-08-31 | 2017-01-11 | 山东省药用玻璃股份有限公司 | Protection cap for pre-potting injector, preparation method and structure of rubber protection cap |
| CN111690184A (en) * | 2020-05-28 | 2020-09-22 | 郑州翱翔医药科技股份有限公司 | Protective cap for pre-filled and sealed injector and manufacturing method thereof |
| CN112552610A (en) * | 2020-12-09 | 2021-03-26 | 郑州大学 | Sterilization-penetration-resistant glue-mixing protective cap for pre-filled and sealed injector and preparation method thereof |
| CN112755328A (en) * | 2021-02-02 | 2021-05-07 | 江苏华兰药用新材料股份有限公司 | Prefilled syringe cap, preparation method and device thereof |
| CN114213724A (en) * | 2021-12-27 | 2022-03-22 | 湖北华强科技股份有限公司 | Rubber protective cap with needle for pre-filling syringe and preparation method thereof |
| CN115819897A (en) * | 2022-11-29 | 2023-03-21 | 湖北华强科技股份有限公司 | Brominated butyl/polyisoprene rubber gasket and production method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN111690184B (en) * | 2020-05-28 | 2022-07-19 | 郑州翱翔医药科技股份有限公司 | Protective cap for pre-filled and sealed syringe and manufacturing method thereof |
| CN111690184A (en) * | 2020-05-28 | 2020-09-22 | 郑州翱翔医药科技股份有限公司 | Protective cap for pre-filled and sealed injector and manufacturing method thereof |
| CN112552610A (en) * | 2020-12-09 | 2021-03-26 | 郑州大学 | Sterilization-penetration-resistant glue-mixing protective cap for pre-filled and sealed injector and preparation method thereof |
| CN112755328A (en) * | 2021-02-02 | 2021-05-07 | 江苏华兰药用新材料股份有限公司 | Prefilled syringe cap, preparation method and device thereof |
| CN112755328B (en) * | 2021-02-02 | 2023-12-15 | 江苏华兰药用新材料股份有限公司 | Prefilled syringe protective cap, preparation method and device thereof |
| CN114213724A (en) * | 2021-12-27 | 2022-03-22 | 湖北华强科技股份有限公司 | Rubber protective cap with needle for pre-filling syringe and preparation method thereof |
| CN114213724B (en) * | 2021-12-27 | 2023-11-28 | 湖北华强科技股份有限公司 | Needle-containing rubber protective cap for prefilled syringe and preparation method thereof |
| CN115819897A (en) * | 2022-11-29 | 2023-03-21 | 湖北华强科技股份有限公司 | Brominated butyl/polyisoprene rubber gasket and production method thereof |
| CN115819897B (en) * | 2022-11-29 | 2023-11-28 | 湖北华强科技股份有限公司 | Brominated butyl/polyisoprene rubber gasket and production method thereof |
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| CN103232623B (en) | 2015-07-15 |
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Address after: 452483 Dengfeng City, Henan Province, Li Zhuang Industrial Park, the three Patentee after: ZHENGZHOU AOXIANG PHARMACEUTICAL PACKING CO., LTD. Address before: 452483 Dengfeng City, Henan Province, Li Zhuang Industrial Park, the three Patentee before: Zhengzhou Aoxiang Pharmaceutical Packing Co., Ltd. |