CN104861407A - Formula for thermoplastic elastomer tourniquet - Google Patents
Formula for thermoplastic elastomer tourniquet Download PDFInfo
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- CN104861407A CN104861407A CN201510287417.5A CN201510287417A CN104861407A CN 104861407 A CN104861407 A CN 104861407A CN 201510287417 A CN201510287417 A CN 201510287417A CN 104861407 A CN104861407 A CN 104861407A
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- tourniquet
- thermoplastic elastomer
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Abstract
The invention discloses a formula for a thermoplastic elastomer tourniquet. The formula is composed of the following components in parts by weight: 30-60 parts of SEPS, 40-70 parts of SEBS, 70-90 parts of a softening agent, 10-30 parts of polyolefin, 5-10 parts of a slipping agent and 5-15 parts of an antibacterial agent. A thermoplastic elastomer produced through the formula cannot hurt a human body, is not allergic to the human body, has excellent flexibility and elasticity, and is better in antibacterial effect; meanwhile, the human body cannot be hurt while the antibacterial effect is achieved.
Description
Technical field
The present invention relates to a kind of medical treatment product, more particularly, it relates to a kind of thermoplastic elastomer tourniquet formula.
Background technology
Tourniquet adopts medical macromolecular materials natural rubber or specialty elastomer to refine to form, oyster white, and rectangular platypelloid type, point connects stack-type mounted box, and retractility is strong, can continuity extract.Be applicable to medical institutions' transfusion in conventional treatment and treatment, blood drawing, blood transfusion, single use during hemostasis; Or extremity hemorrhage, field snake bite and insect sting hemorrhage time emergent hemostasis.Tourniquet hemostasis is for simple during the first aid of four limbs profuse bleeding, effective Hemostasis, and it blocks blood by vascular compression and reaches hemostasis object.
At present, the application number on market is that the Chinese patent of CN201310180651.9 discloses a kind of composite emulsion medical tourniquet material prescription, comprises following component (calculating by weight): latex 3 parts; Auxiliary material 2 parts, wherein, described auxiliary material is made up of following component: White Carbon black 27 parts; Light calcium carbonate 5 parts; 3 parts, anti-aging agent; 2 parts, oxidation inhibitor; Titanium dioxide 5 parts; Paraffin wax 2 parts; Stearic acid 2 parts; 5 parts, zinc oxide; Sulfur 5 parts; Sym-trimethylbenzene 2 parts; Dimethylaminoethyl methacrylate DM2 part.This formula is used to carry out the preparation of tourniquet latex, constant at maintenance curing temperature, under the prerequisite that physical parameter performance is constant, can curing time be greatly reduced, improve productivity effect.
The tourniquet starting material that foregoing invention is produced are latex, latex material has made huge contribution on medical field, but along with the development in epoch, latex also manifests drawback in the application of medicine and hygiene fields, first, the tourniquet of latex class easily decomposes under ultraviolet condition, and therefore its conditional request of preserving is higher.Long-term use is easily softened, and follows the string, thus does not reach haemostatic effect.In addition, in a part of crowd, have anaphylaxis to latex, therefore latex starts to eliminate at medicine and hygiene fields.
Summary of the invention
For the deficiency that prior art exists, the object of this reality invention is to provide a kind of thermoplastic elastomer tourniquet formula.
For achieving the above object, the invention provides following technical scheme:
A thermoplastic elastomer tourniquet formula, the component comprising following weight part is formed:
SEPS:30 ~ 60 part;
SEBS:40 ~ 70 part;
Tenderizer: 70 ~ 90 parts;
Polyolefine: 10 ~ 30 parts;
Slipping agent: 5 ~ 10 parts;
Antiseptic-germicide: 5 ~ 15 parts;
Wherein,
The linear three embedding multipolymers of SEBS to be ethylene-butene copolymer be middle spring block,
SEPS is hydrogenated styrene isoprene segmented copolymer,
Antiseptic-germicide: the mixture of inorganic silver or inorganic silver, selects the mixture of zeolite granular and silver salt further, preferred pore is stained with the zeolite granular of silver ions;
Slipping agent is amides, at least one in preferred amine hydroxybenzene and erucicamide in amides slipping agent, or both mixtures.
Polyolefine is at least one in polyhutadiene, polyethylene, polypropylene;
Tenderizer is paraffin.
In the present invention, the while that the elasticity needed due to tourniquet being good, the requirement of its pliability is also relatively high, the selection of base-material is selected SEBS's and SEPS is used in combination.
First SEBS with SEPS is structurally similar, and consistency is good, mutually can aggregate into thermoplastic elastomer.
Secondly, SEBS has excellent ageing-resistant performance, both has plasticity-, again there is snappiness, can process use without the need to sulfuration, scrap stock can heavily use, and are widely used in and produce high-grade elastomerics, modifying plastics, tackiness agent, lubricant tackifier, the stopping composition of electric wire and sheath material etc.SEBS has the mechanical property of good weathering resistance, thermotolerance, compression deformability and excellence, and the styrenic thermoplastic elastomer based on SEPS has snappiness and high property equally.SEPS with SEBS compares with mechanical property during cinnamic content at same relative molecular mass, and SEPS has lower modulus, tensile strength, and elongation is relatively high, by both complementations in performance, thus reaches the performance of tourniquet needs.
Therefore, SEBS and SEPS is selected in the selection of base-material.
In this formula, add polyolefine, mainly in order to strengthen the flexibility of thermoplastic elastomer, tourniquet, in order in use, because strangle to obtain tension, and causes the injury to people.Therefore, the flexibility of thermoplastic elastomer be improved.And polyolefine segment is typical soft segment, in valve, therefore selects polyolefine to be additive, condense together with SEBS and SEPS, to improve overall flexibility., generally select the polyolefine that side chain is less here, if side chain is more, can cause macromolecular chain segment on the contrary when mobile, its resistance becomes large, intermolecular displacement difficulty, thus makes flexible decline.Therefore, particularly preferably at least one in polyhutadiene, polyethylene, polypropylene herein.
Tourniquet in use, ensure its smooth degree, can not toughness, prevent tourniquet to be bonded on human body, thus make to increase elastically-deformable resistance, and on medical field, to keep dry and comfortable near suitable for reading, prevent the bacterium infected wound again sticked on tourniquet.Therefore need to add slipping agent in resynthesis process, amides selected by slipping agent, and common slipping agent has amides, soap class, silicone based, silicone based is liquid, adds inconvenient, expensive, and domesticly at present substantially there is no professional production producer, be difficult to apply; Though the product of soap class is cheap, smooth effect is undesirable, need the amount of interpolation just very large like this, therefore it is difficult to be applied to medium-to-high grade goods; And the slipping agent of amides, moderate, successful, and also it is also nontoxic, and by FDA and the certification of U.S. food Drug Administration, therefore its range of application is the widest, and prospect is also best.Amine hydroxybenzene and erucicamide are common amides slipping agent simultaneously, and its cost is low, easily obtains.
Again because tourniquet is the utilization of medicine and hygiene fields, therefore has high requirement at antibiosis, therefore needs to add suitable antiseptic-germicide.Meanwhile, the selection of antiseptic-germicide is also very important, and antiseptic-germicide generally all has certain toxicity, therefore, one be selected to play antibacterial effect, again can not be hurtful to human body.For this reason, select the mixture of inorganic silver or inorganic silver in the present invention, the mixture of further selection zeolite granular and silver salt, preferred pore is stained with the zeolite granular of silver ions, particularly select the DAW502 inorganic antiseptic of Jie Ermeike company, namely in the structure such as zeolite of three-dimensional structure having alumina silicate, by adding the antiseptic-germicide of the silver ions having germ resistance.This antiseptic-germicide is by the chronic toxicity certification of the highest security level of Japan.Its toxicity data is as follows:
Acute toxicity LD50>5000mg;
Allergenicity is negative;
Non-carcinogenesis;
The disposable pungency of skin is negative;
Skin hypersensitivity is negative;
Absorbing rushing down property of row is that skin is without absorption;
U.S. FDA certification, certification can be used as food contact substance.
Therefore, meet completely as health care service requirements.
Meanwhile, paraffin selected by tenderizer, and paraffin inherently has certain lubricant effect, makes the smoothness of the thermoplastic elastomer produced better.
By the thermoplastic elastomer that the present invention produces, can not cause damage to human body, thermoplastic elastomer to human body without anaphylaxis, and there is good flexibility and elasticity, its antibacterial effect is better, while it reaches antibacterial effect simultaneously, can not cause damage to human body.
Embodiment
In the present invention, the while that the elasticity needed due to tourniquet being good, the requirement of its pliability is also relatively high, the selection of base-material is selected SEBS's and SEPS is used in combination.
First SEBS with SEPS is structurally similar, and consistency is good, mutually can aggregate into thermoplastic elastomer.
Secondly, SEBS has excellent ageing-resistant performance, both has plasticity-, again there is snappiness, can process use without the need to sulfuration, scrap stock can heavily use, and are widely used in and produce high-grade elastomerics, modifying plastics, tackiness agent, lubricant tackifier, the stopping composition of electric wire and sheath material etc.SEBS has the mechanical property of good weathering resistance, thermotolerance, compression deformability and excellence, and the styrenic thermoplastic elastomer based on SEPS has snappiness and high property equally.SEPS with SEBS compares with mechanical property during cinnamic content at same relative molecular mass, and SEPS has lower modulus, tensile strength, and elongation is relatively high, by both complementations in performance, thus reaches the performance of tourniquet needs.
Therefore, SEBS and SEPS is selected in the selection of base-material.
In this formula, add polyolefine, mainly in order to strengthen the flexibility of thermoplastic elastomer, tourniquet, in order in use, because strangle to obtain tension, and causes the injury to people.Therefore, the flexibility of thermoplastic elastomer be improved.And polyolefine segment is typical soft segment, in valve, therefore selects polyolefine to be additive, condense together with SEBS and SEPS, to improve overall flexibility., generally select the polyolefine that side chain is less here, if side chain is more, can cause macromolecular chain segment on the contrary when mobile, its resistance becomes large, intermolecular displacement difficulty, thus makes flexible decline.Therefore, particularly preferably at least one in polyhutadiene, polyethylene, polypropylene herein.
Tourniquet in use, ensure its smooth degree, can not toughness, prevent tourniquet to be bonded on human body, thus make to increase elastically-deformable resistance, and on medical field, to keep dry and comfortable near suitable for reading, prevent the bacterium infected wound again sticked on tourniquet.Therefore need to add slipping agent in resynthesis process, amides selected by slipping agent, and common slipping agent has amides, soap class, silicone based, silicone based is liquid, adds inconvenient, expensive, and domesticly at present substantially there is no professional production producer, be difficult to apply; Though the product of soap class is cheap, smooth effect is undesirable, need the amount of interpolation just very large like this, therefore it is difficult to be applied to medium-to-high grade goods; And the slipping agent of amides, moderate, successful, and also it is also nontoxic, and by FDA and the certification of U.S. food Drug Administration, therefore its range of application is the widest, and prospect is also best.Amine hydroxybenzene and erucicamide are common amides slipping agent simultaneously, and its cost is low, easily obtains.
Again because tourniquet is the utilization of medicine and hygiene fields, therefore has high requirement at antibiosis, therefore needs to add suitable antiseptic-germicide.Meanwhile, the selection of antiseptic-germicide is also very important, and antiseptic-germicide generally all has certain toxicity, therefore, one be selected to play antibacterial effect, again can not be hurtful to human body.For this reason, select the mixture of inorganic silver or inorganic silver in the present invention, the mixture of further selection zeolite granular and silver salt, preferred pore is stained with the zeolite granular of silver ions, particularly select the DAW502 inorganic antiseptic of Jie Ermeike company, namely in the structure such as zeolite of three-dimensional structure having alumina silicate, by adding the antiseptic-germicide of the silver ions having germ resistance.This antiseptic-germicide is by the chronic toxicity certification of the highest security level of Japan.Its toxicity data is as follows:
Acute toxicity LD50>5000mg;
Allergenicity is negative;
Non-carcinogenesis;
The disposable pungency of skin is negative;
Skin hypersensitivity is negative;
Absorbing rushing down property of row is that skin is without absorption;
U.S. FDA certification, certification can be used as food contact substance.
Therefore, meet completely as health care service requirements.
Meanwhile, paraffin selected by tenderizer, and paraffin inherently has certain lubricant effect, makes the smoothness of the thermoplastic elastomer produced better.
Embodiment one:
SEPS:500g；
SEBS:500g；
Paraffin: 800g;
Polypropylene: 200g;
Amine hydroxybenzene: 50g;
DAW502 inorganic antiseptic: 10g.
Board-like material is made according to the making method of this area routine.In particular, in the present embodiment, making method is as follows:
Take raw material according to the weight of mentioned component, and after loading and fully mixing in agitation vat, join in twin screw extruder and extrude, and pelletizing is prepared into plastic pellet.Board-like material is injection molded into by plastic pellet is put into injection moulding machine.And Performance Detection is carried out to it.
Thermoplastic elastomer test data by embodiment one formula is produced:
Tensile strength: 15.0 MPa;
Tensile deformation: 420 %;
Stretch 500 deformation: 4.2%.
Embodiment two:
SEPS:400g；
SEBS:600g；
Paraffin: 700g;
Polyhutadiene: 150g;
Erucicamide: 50g;
DAW502 inorganic antiseptic: 10g.
Board-like material is made according to the making method of this area routine.In particular, in the present embodiment, making method is as follows:
Take raw material according to the weight of mentioned component, and after loading and fully mixing in agitation vat, join in twin screw extruder and extrude, and pelletizing is prepared into plastic pellet.Board-like material is injection molded into by plastic pellet is put into injection moulding machine.And Performance Detection is carried out to it.
Thermoplastic elastomer test data by embodiment two formula is produced:
Tensile strength: 14.3 MPa;
Tensile deformation: 480 %;
Stretch 500 deformation: 5%.
Embodiment three:
SEPS:600g；
SEBS:500g；
Paraffin: 800g;
Polyhutadiene: 100g;
Polypropylene: 100g;
Erucicamide: 30g;
Erucicamide: 50g;
DAW502 inorganic antiseptic: 10g.
Board-like material is made according to the making method of this area routine.In particular, in the present embodiment, making method is as follows:
Take raw material according to the weight of mentioned component, and after loading and fully mixing in agitation vat, join in twin screw extruder and extrude, and pelletizing is prepared into plastic pellet.Board-like material is injection molded into by plastic pellet is put into injection moulding machine.And Performance Detection is carried out to it.
Thermoplastic elastomer test data by embodiment three formula is produced:
Tensile strength: 15.8 MPa;
Tensile deformation: 450 %;
Stretch 500 deformation: 4.8 %.
By the test data of above-described embodiment, its thermoplastic elastomer prepared, meets the mechanical requirements of tourniquet completely.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a thermoplastic elastomer tourniquet formula, the component comprising following weight part is formed:
SEPS:30 ~ 60 part;
SEBS:40 ~ 70 part;
Tenderizer: 70 ~ 90 parts;
Polyolefine: 10 ~ 30 parts;
Slipping agent: 5 ~ 10 parts;
Antiseptic-germicide: 5 ~ 15 parts;
Wherein,
The linear three embedding multipolymers of SEBS to be ethylene-butene copolymer be middle spring block,
SEPS is hydrogenated styrene isoprene segmented copolymer,
Antiseptic-germicide: the mixture of inorganic silver or inorganic silver,
Slipping agent is amides.
2. a kind of thermoplastic elastomer tourniquet formula according to claim 1, is characterized in that: described polyolefine is at least one in polyhutadiene, polyethylene, polypropylene.
3. a kind of thermoplastic elastomer tourniquet formula according to claim 1, is characterized in that: described tenderizer is paraffin.
4. a kind of thermoplastic elastomer tourniquet formula according to claim 1, is characterized in that: described slipping agent is at least one in amine hydroxybenzene and erucicamide.
5. a kind of thermoplastic elastomer tourniquet formula according to claim 1, is characterized in that: antiseptic-germicide is the mixture of zeolite granular and silver salt.
6. a kind of thermoplastic elastomer tourniquet is filled a prescription according to claim 1 or 5, it is characterized in that: antiseptic-germicide is zeolite granular pore being stained with silver ions.
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| CN201510287417.5A CN104861407A (en) | 2015-05-30 | 2015-05-30 | Formula for thermoplastic elastomer tourniquet |
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| CN106700383A (en) * | 2016-12-30 | 2017-05-24 | 慈溪市山今高分子塑料有限公司 | TPE material for tourniquet and preparation process thereof |
| CN106987080A (en) * | 2017-04-20 | 2017-07-28 | 苏州康邦新材料有限公司 | TPE tourniquets and preparation method thereof |
| CN114163827A (en) * | 2021-12-30 | 2022-03-11 | 常州恒方大高分子材料科技有限公司 | TPE material for tourniquet and preparation method thereof |
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| CN1546176A (en) * | 2003-12-17 | 2004-11-17 | 苗九昌 | Stealth water-proof spray paste for wound |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106700383A (en) * | 2016-12-30 | 2017-05-24 | 慈溪市山今高分子塑料有限公司 | TPE material for tourniquet and preparation process thereof |
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Application publication date: 20150826 |