CN103030943B - Asoscope degradation material and method for making - Google Patents
Asoscope degradation material and method for making Download PDFInfo
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- CN103030943B CN103030943B CN201110293453.4A CN201110293453A CN103030943B CN 103030943 B CN103030943 B CN 103030943B CN 201110293453 A CN201110293453 A CN 201110293453A CN 103030943 B CN103030943 B CN 103030943B
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Abstract
The invention provides a kind of asoscope degradation material and method for making.Degraded type asoscope is made into by the degradable macromolecule major ingredient of base material of degrading, toughener, and its injection molding process is: opening for feed 155-165 DEG C, compression section 160-170 DEG C, metering zone 165-180 DEG C, nozzle 165-180 DEG C; Die temperature is: 20-30 DEG C; Injection pressure is: one-level 75, secondary 80, three grades of 50Mpa; Injection cycle is: 50 seconds; Dwell time is: 0 second; Screw speed is: 180 revs/min; The properties of the degraded type asoscope obtained meets the requirement of national sector standard " YY/T0189-1994 asoscope ", the disposable asoscope of the plastic productions such as modified polystyrene can be substituted completely, without the need to not polluted the environment by burning after this asoscope is discarded, degradable in physical environment by landfill, reach low-carbon (LC), environmental protection, energy-conservation object.
Description
Technical field
The invention belongs to environmental protection and energy saving degradable disponsable medical instruments field, specifically a kind of asoscope degradation material and method for making.
Background technology
The clinical department of eye of Hospitals at Present asoscope used has stainless steel and other metal materials to make and with the single use asoscope of the plastic production such as modified polystyrene, ABS, the advantage of stainless steel asoscope is appearance looks elegant and firm and durable, its shortcoming is that metal asoscope system is by the multiple working procedure such as punching press, riveted joint, higher and the Reusability of price, cleaning, sterilization not only consuming time but also sterilization are difficult to kill viruses such as hepatitis B and troubling, there is the hidden danger of cross infection of disease.So people start to invent " disposable asoscope ", such as China Patent No. is " the disposable asoscope " of 94223736.6, " the disposable asoscope " of 95217820.6 and " the disposable asoscope " of 00205624.0, the petroleum-based plastics such as selection modified polystyrene make, because of low price, lightweight, be easy to carry, especially be used for stopping the advantages such as cross infection of disease and accepted by clinical gradually, but also there is many problems in plastics asoscope, such as, all need to pass through burning disposal after using, the plastics such as well-known modified polystyrene can produce a large amount of black smoke when burning, hydrogenchloride can be discharged simultaneously, poisonous and the carcinogenic substance such as Dioxins, severe contamination environment, compromise human health to move with other, the health of plant.For this reason, research and development degradation type disposable asoscope, can not only avoid using rear burning disposal completely, avoids contaminate environment again simultaneously, protection human health, but also has greatly saved the energy, not only environmental protection but also energy-conservation.But the research that up to now, at home and abroad there is no about asoscope degradation material and method for making and report.
Summary of the invention
First object of the present invention is to provide degraded type asoscope.
Second object of the present invention is to provide asoscope degradation material and method for making.
Degraded type asoscope of the present invention, is made up of degradable base material, and its composition and weight proportion are:
Degradable macromolecule major ingredient 100 parts, toughener 3-6 part;
Described polymer major ingredient is: poly(lactic acid) (PLA);
Described toughener is: EMFORCEBIO, calcium carbonate superfine powder, Concha Meretricis Seu Cyclinae powder or their mixture.
The invention provides the method for making of degraded type asoscope, step and condition as follows:
The first step: the base material good by proportioning, sends in homogenizer, rotating speed 600-800 rev/min, and mixing 5-8 minute, makes uniform base material or base material compound;
Second step: the base material that the first step is made or base material compound; respectively at 50-55 DEG C; vacuum-drying 2-6 hour, send in single screw extrusion machine, temperature controls: feeding section 65-90 DEG C; batch mixing segment 85-130 DEG C; fluxing zone 130-180 DEG C, head 100-165 DEG C, screw speed 30-60 rev/min; after dicing machine pelletizing, the pellet of obtained above-mentioned base material respectively.
3rd step: by above-mentioned base material pellet, at 50-60 DEG C, vacuum-drying 4-8 hour, stand-by;
4th step: by the pellet of above-mentioned oven dry, joins in injection moulding machine hopper, carries out the injection moulding of degraded type asoscope;
Barrel temperature is set as: opening for feed 155-165 DEG C, compression section 160-170 DEG C, metering zone 165-180 DEG C, nozzle 165-180 DEG C;
Die temperature is: 20-30 DEG C;
Injection pressure is: one-level 75, secondary 80, three grades of 50Mpa;
Injection cycle is: 50 seconds;
Dwell time is: 0 second;
Screw speed is: 180 revs/min;
After injection moulding, just can be made into degradable asoscope.
Table 1 gives asoscope biological degradation base material formula used.
Table 1
Beneficial effect: the base materials employed preferred poly(lactic acid) of degraded type asoscope provided by the invention is that material of main part and corresponding subsidiary material are formulated.Poly(lactic acid) (PLA) is one of the only a few degradable polymeric material that can be used for human body through FDA approval, there is good biocompatibility, the present invention selects with EMFORCEBIO, Concha Meretricis Seu Cyclinae powder or calcium carbonate superfine powder are auxiliary material, all belong to filling material utilized for environment protection, fully biodegradable after discarded, in addition the most important thing is, the preparation technology of biodegradation type asoscope provided by the invention is rationally detailed, its properties meets the requirement of national sector standard " YY/T0189-1994 asoscope ", therefore the asoscope that degradation material disclosed by the invention makes has good value for clinical application.
Embodiment
The formula that following examples adopt, is the formula of above-mentioned table 1.
The injection molding forming method of embodiment 1 degraded type asoscope:
The first step, vacuum-drying: by the degradable base material pellet of formula 1, formula 2 or formula 3 at 55 DEG C, vacuum-drying 4.30 hours, stand-by.
Second step, injection moulding: the degradable base material pellet of the formula 1 of oven dry, formula 2 or formula 3 is joined injection moulding machine and carries out injection moulding.
Its barrel temperature is set as: opening for feed 155 DEG C, 165 DEG C, compression section, metering zone 175 DEG C, 175 DEG C, nozzle;
Die temperature is: 40 DEG C;
Injection pressure is: first paragraph 75pa, second segment 80Mpa, the 3rd section of 50Mpa;
Injection cycle is: 50 seconds;
Dwell time is: 0 second;
Screw speed is: 180 revs/min.
Obtain the degraded type asoscope of the degradable base material adopting formula 1, formula 2 or formula 3.
Claims (1)
1. a preparation method for degraded type asoscope, is characterized in that, asoscope degradation material is obtained by the composition of following weight proportion:
Degradable macromolecule major ingredient 100 parts, toughener 5 parts;
Described polymer major ingredient is: poly(lactic acid) (PLA);
Described toughener is: the mixture of EMFORCEBIO, calcium carbonate superfine powder and Concha Meretricis Seu Cyclinae powder;
The preparation method of degraded type asoscope, step and condition as follows:
The first step: by polymer major ingredient good for proportioning and toughener, sends in homogenizer, rotating speed 600-800 rev/min, and mixing 5-8 minute, makes uniform base material compound;
Second step: the base material compound that the first step is made, at 50-55 DEG C, vacuum-drying 2-6 hour, send in single screw extrusion machine, temperature controls: feeding section 65-90 DEG C, batch mixing segment 85-130 DEG C, fluxing zone 130-180 DEG C, head 100-165 DEG C, screw speed 30-60 rev/min, after dicing machine pelletizing, the pellet of obtained above-mentioned base material;
3rd step: by above-mentioned base material pellet, at 50-60 DEG C, vacuum-drying 4-8 hour, stand-by;
4th step: by the pellet of above-mentioned oven dry, joins in injection moulding machine hopper, carries out the injection moulding of degraded type asoscope;
Barrel temperature is set as: opening for feed 155-165 DEG C, compression section 160-170 DEG C, metering zone 165-180 DEG C, nozzle 165-180 DEG C;
Die temperature is: 20-30 DEG C;
Injection pressure is: one-level 75, secondary 80, three grades of 50MPa;
Injection cycle is: 50 seconds;
Dwell time is: 0 second;
Screw speed is: 180 revs/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110293453.4A CN103030943B (en) | 2011-09-29 | 2011-09-29 | Asoscope degradation material and method for making |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110293453.4A CN103030943B (en) | 2011-09-29 | 2011-09-29 | Asoscope degradation material and method for making |
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| CN103030943A CN103030943A (en) | 2013-04-10 |
| CN103030943B true CN103030943B (en) | 2016-02-24 |
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| CN101152588A (en) * | 2007-10-30 | 2008-04-02 | 中国科学院长春应用化学研究所 | Degradation type disposable syringe and method of producing the same |
| CN101468215A (en) * | 2007-12-29 | 2009-07-01 | 上海林静医疗器械有限公司 | Technique for producing degradable medical apparatus |
| CN101506278A (en) * | 2006-08-31 | 2009-08-12 | 金伯利-克拉克环球有限公司 | Highly breathable biodegradable films |
| CN101918485A (en) * | 2007-12-17 | 2010-12-15 | 密执安特种矿石公司 | Surface treated inorganic particle additive for increasing the toughness of polymers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7354656B2 (en) * | 2002-11-26 | 2008-04-08 | Michigan State University, Board Of Trustees | Floor covering made from an environmentally friendly polylactide-based composite formulation |
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2011
- 2011-09-29 CN CN201110293453.4A patent/CN103030943B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101506278A (en) * | 2006-08-31 | 2009-08-12 | 金伯利-克拉克环球有限公司 | Highly breathable biodegradable films |
| CN101152588A (en) * | 2007-10-30 | 2008-04-02 | 中国科学院长春应用化学研究所 | Degradation type disposable syringe and method of producing the same |
| CN101918485A (en) * | 2007-12-17 | 2010-12-15 | 密执安特种矿石公司 | Surface treated inorganic particle additive for increasing the toughness of polymers |
| CN101468215A (en) * | 2007-12-29 | 2009-07-01 | 上海林静医疗器械有限公司 | Technique for producing degradable medical apparatus |
Non-Patent Citations (3)
| Title |
|---|
| 《Biopolymers present new market opportunities for additives in packaging》;Jennifer Markarian;《Plastics, Additives and Compounding》;20080515;第10卷(第3期);第22-25页 * |
| 《碳酸钙填充聚乳酸复合材料的制备和性能研究》;周凯等;《中国塑料》;20090626;第23卷(第6期);正文第27页1.1 主要原料，第28页1.3 样品制备表1、2.1复合材料的力学性能第1段及图1，第29页第1段、图3、图4 * |
| 《纳米碳酸钙改性聚乳酸材料性能的研究》;曹延生等;《中国塑料》;20071026;第21卷(第10期);第45-48页 * |
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Inventor after: Zhang Xingxing Inventor after: Wu Qianqian Inventor after: Lin Jing Inventor before: Wu Qianqian |
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Effective date of registration: 20171204 Address after: 224200 Dongtai city of Jiangsu province mechanical and electronic industrial park Jinfeng Road No. 3 Patentee after: Jiangsu Aobo gold Pharmaceutical Technology Co. Ltd. Address before: 201600 Shanghai city Songjiang District City Private Cang Qiao Yu Jia Lu No. 37 Patentee before: Shanghai Linjing Medical Equipment Co., Ltd. |