CN107987455A - A kind of transparent SEBS materials of high performance-price ratio medical soft and preparation method thereof - Google Patents
A kind of transparent SEBS materials of high performance-price ratio medical soft and preparation method thereof Download PDFInfo
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- CN107987455A CN107987455A CN201711345372.8A CN201711345372A CN107987455A CN 107987455 A CN107987455 A CN 107987455A CN 201711345372 A CN201711345372 A CN 201711345372A CN 107987455 A CN107987455 A CN 107987455A
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- sebs
- transparent
- high performance
- price ratio
- medical soft
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
Abstract
The invention discloses transparent SEBS materials of a kind of high performance-price ratio medical soft and preparation method thereof, low-cost medical soft transparent SEBS of the invention replicates all properties of SEBS substantially, and high temperature resistant is ageing-resistant, excellent spring;At the same time with lower-cost raw material, it is harder to solve common medical SEBS case hardnesses, it is not easy to the problem of being made compared with soft product.
Description
Technical field
The invention belongs to medical material tech field, is related to a kind of transparent SEBS materials of high performance-price ratio medical soft and its system
Preparation Method.
Background technology
Styrene analog thermoplastic elastomer is that yield is maximum, a kind of thermoplastic elastomer (TPE) the most similar to rubber performance,
4 types are broadly divided into, i.e.,:Styrene butadiene styrene block copolymer (SBS), styrene-isoprene-styrene
Block copolymer (SIS), styrene ethylene butylene styrene block copolymer (SEBS), styrene ethylene propylene benzene second
Alkene block copolymer (SEPS).Wherein SEBS and SEPS is the hydrogenated copolymer of SBS and SIS respectively.
SEBS is the hydrogenation products of thermoplastic elastomer SBS, and the SBS being hydrogenated is due to 1 with high level, 2 structures,
Composition after hydrogenation is polystyrene (S)-polyethylene (E)-polybutene (B)-polystyrene (S), therefore referred to as SEBS.Due to
The carbon-to-carbon double bond of polybutene section is hydrogenated saturation in SEBS, thus with good weatherability, heat resistance, compression resistant morphotropism
With excellent mechanical property.SEBS not only has plasticity, but also has high resiliency, and use can be processed without vulcanization.
For the scientific name of vaseline petrolatum, its primary raw material is the slag left from crude oil after normal pressure and vacuum distillation
The slack wax deviate from oil, while also need to admix different amounts of high, middle viscosity lubricating oil as requested.Taken off from petroleum residual oil
Yellow slack wax in contain many impurity, regardless of whether being medicinal or cosmetic, be all impermissible for containing any harmful
Material, can not there is peculiar smell, so must also be subject to the refined of depth, could be used after fully removing various impurity.By it
The difference of requirement, it is all can be divided into common vaseline, medicinal vaseline, cosmetic vaseline, industrial vaseline and capacitor
Intellectual circle etc..
Conventional SEBS molecular weight is big, processing difficulties, it will usually adds the plasticizing that some softening oils promote SEBS, but SEBS makees
For medical supplies when, liquid oil cannot be added, be in order to avoid softening oil in use separates out pollution medicine or production
Other raw harmful effects.SEBS is general to add polypropylene to adjust processing fluidity, but poly- third when as medical supplies at present
The case hardness of alkene is bigger than SEBS, so harder medical supplies can only be made by adding polyacrylic SEBS, what is in addition synthesized is soft
Matter SEBS is of high cost, it is not easy to promotes.
The content of the invention
In view of the problems of the existing technology, it is an object of the invention to provide a kind of high performance-price ratio medical soft is transparent
SEBS materials and preparation method thereof.To achieve the above object, the transparent SEBS materials of a kind of high performance-price ratio medical soft of the invention,
It is prepared from the following raw materials in parts by weight:SEBS100 parts, 0-40 parts of vaseline, hardness adjusts 10-40 parts of polymer, antioxidant
0.3-1 parts.
Further, the SEBS is hydrogenated styrene-butadiene-styrene block copolymers.
Further, degree of hydrogenation >=97% of the SEBS.
Further, 20% toluene solution viscosities of the SEBS are in 200-800Mpa.s.
Further, the case hardness of the SEBS is in 65-75A.
Further, the vaseline is pharmaceutical grade.
Further, the cone penetration of the vaseline is 13.5-20mm.
Further, the fusing point of the vaseline is 40-60 DEG C.
Further, it is ethylene-vinyl acetate copolymer (EVA) that the hardness, which adjusts polymer, polyolefin elastomer (POE)
Polypropylene (PP), styrene butadiene random copolymer (K glue), one or more of mixtures in terpene resin.
Present invention additionally comprises a kind of preparation method of the above-mentioned transparent SEBS materials of high performance-price ratio medical soft, is specially:
1) SEBS, hardness are first adjusted into polymer, antioxidant forced air drying;
2) vaseline is melted at a temperature of 70-100;
3) by the raw material heating high speed vaseline that is dry-mixed, while melting in adding 2) in step 1), mixture is obtained;
4) mixture of step 3) is added into double screw extruder, melt blending, granulation;
One area's temperature of twin-screw extruder barrel is 120-150 DEG C, and two area's temperature are 160-190 DEG C, three area temperature 180-
200 DEG C, four 170-190 DEG C of area's temperature, 170-190 DEG C of head temperature.
The present invention uses common SEBS, vaseline, and hardness adjusts polymer and antioxidant, obtains a kind of soft transparent doctor
With SEBS alloy materials, the pliability of the material can match in excellence or beauty with the soft SEBS directly synthesized.The vaseline pole wherein added
Inertia to be spent, and is paste under room temperature, poor fluidity, will not separate out and influence medicine, and when more than fusing point, can conduct
The softening agent of SEBS uses, in addition SIS and hardness adjust polymer can further adjust the hardness of SEBS simultaneously can be into one
Step reduces the precipitation of vaseline.The cost of supplementary product used in the medical SEBS is below SBES, can significantly reduce the system of SEBS
Make cost, and obtained medical alloy SEBS replicates all properties of SEBS substantially, and high temperature resistant is ageing-resistant, excellent spring.
Embodiment
In the following, more fully being illustrated to the present invention, the exemplary embodiment of the present invention is shown.It is however, of the invention
It can be presented as a variety of multi-forms, be not construed as being confined to the exemplary embodiment described here.And it is to provide these
Embodiment, so that the present invention is fully and completely, and will fully convey the scope of the invention to the ordinary skill people of this area
Member.
Embodiment 1
A kind of transparent SEBS materials of high performance-price ratio medical soft, are mainly prepared from the following raw materials in parts by weight:
SEBS100 parts, 30 parts of vaseline, POE10 parts, 0.3 part of irgasfos 168.
Preparation method comprises the following steps:
1) first by SEBS, EVA, irgasfos 168 is in 60 DEG C of forced air drying 2h;
2) vaseline is melted at a temperature of 70 DEG C;
3) raw material in step 1) is added to mixing in 60 DEG C of high-speed mixer, while all scholars melted in adding 2)
Woods, is uniformly mixed processing;
4) mixture of step 3) is added into double screw extruder, melt blending, granulation;
One area's temperature of twin-screw extruder barrel is 130 DEG C, and two area's temperature are 160 DEG C, three 190 DEG C of area's temperature, four area's temperature
180 DEG C of degree, 170 DEG C of head temperature.
Embodiment 2
A kind of transparent SEBS materials of high performance-price ratio medical soft, are mainly prepared from the following raw materials in parts by weight:
SEBS100 parts, POE40 parts, 25 parts of vaseline, 0.5 part of irgasfos 168.
Preparation method comprises the following steps:
1) first by SEBS, EVA, irgasfos 168 is in 60 DEG C of forced air drying 2h;
2) vaseline is melted at a temperature of 70 DEG C;
3) raw material in step 1) is added to mixing in 60 DEG C of high-speed mixer, while all scholars melted in adding 2)
Woods, is uniformly mixed discharging;
4) mixture of step 3) is added into double screw extruder, melt blending, granulation;
One area's temperature of twin-screw extruder barrel is 140 DEG C, and two area's temperature are 170 DEG C, three 180 DEG C of area's temperature, four area's temperature
190 DEG C of degree, 180 DEG C of head temperature.
Embodiment 3
A kind of transparent SEBS materials of high performance-price ratio medical soft, are mainly prepared from the following raw materials in parts by weight:
SEBS100 parts, PP20 parts, POE20 parts, 10 parts of vaseline, 0.3 part of irgasfos 168.
Preparation method comprises the following steps:
1) first by SEBS, EVA, PP, irgasfos 168 is in 60 DEG C of forced air drying 2h;
2) vaseline is melted at a temperature of 70 DEG C;
3) raw material in step 1) is added to mixing in 60 DEG C of high-speed mixer, while all scholars melted in adding 2)
Woods, is uniformly mixed processing;
4) mixture of step 3) is added into double screw extruder, melt blending, granulation;
One area's temperature of twin-screw extruder barrel is 120 DEG C, and two area's temperature are 160 DEG C, three 180 DEG C of area's temperature, four area's temperature
190 DEG C of degree, 180 DEG C of head temperature.
Embodiment 4
A kind of transparent SEBS materials of high performance-price ratio medical soft, are mainly prepared from the following raw materials in parts by weight:
SEBS100 parts, PP10 parts, POE30 parts, 0.3 part of irgasfos 168.
Preparation method comprises the following steps:
1) first by SEBS, EVA, PP, irgasfos 168 is in 60 DEG C of forced air drying 2h;
2) raw material in step 1) is added to mixing in high-speed mixer,
3) mixture of step 2) is added into double screw extruder, melt blending, granulation;
One area's temperature of twin-screw extruder barrel is 120 DEG C, and two area's temperature are 160 DEG C, three 180 DEG C of area's temperature, four area's temperature
190 DEG C of degree, 180 DEG C of head temperature.The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize
Or use the present invention.
Embodiment 5
A kind of transparent SEBS materials of high performance-price ratio medical soft, are mainly prepared from the following raw materials in parts by weight:
SEBS100 parts, PP30 parts, POE10 parts, 0.3 part of irgasfos 168.
Preparation method comprises the following steps:
2) 1) first by SEBS, EVA, PP, irgasfos 168 is in 60 DEG C of forced air drying 2h;
2) raw material in step 1) is added to mixing in high-speed mixer,
3) mixture of step 2) is added into double screw extruder, melt blending, granulation;
One area's temperature of twin-screw extruder barrel is 120 DEG C, and two area's temperature are 160 DEG C, three 180 DEG C of area's temperature, four area's temperature
190 DEG C of degree, 180 DEG C of head temperature.
For improvement of the verification present invention to SEBS hardness, performance obtained by embodiment 1-5 is contrasted
Hardness | Light transmittance | |
Embodiment 1 | 46A | 73 |
Embodiment 2 | 55A | 71 |
Embodiment 3 | 66A | 74 |
Embodiment 4 | 73A | 78 |
Embodiment 5 | 83A | 75 |
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (9)
- A kind of 1. transparent SEBS materials of high performance-price ratio medical soft, it is characterised in that:The SEBS materials are by SEBS, vaseline, Hardness adjusts polymer and antioxidant composition, and wherein SEBS numbers are 100 parts, and vaseline number is 0-40 parts, and hardness adjusts poly- Compound number is 10-40, and antioxidant number is 0.3-0.5 parts.
- A kind of 2. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The SEBS's adds Hydrogen degree >=97%.
- A kind of 3. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The SEBS's 20% toluene solution viscosities are in 200-800Mpa.s.
- A kind of 4. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The table of the SEBS Surface hardness is in 65-75A.
- A kind of 5. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The vaseline is Pharmaceutical grade.
- A kind of 6. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The vaseline Cone penetration is 13.5-20mm.
- A kind of 7. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The vaseline Fusing point is 40-60 DEG C.
- A kind of 8. transparent SEBS materials of high performance-price ratio medical soft as described in right wants 1, it is characterised in that:The hardness is adjusted Polymer is ethylene-vinyl acetate copolymer (EVA), polyolefin elastomer (POE), polypropylene (PP), styrene-butadiene without Copolymer (K glue) is advised, one or more of mixtures in terpene resin.
- 9. a kind of preparation method of the transparent SEBS materials of high performance-price ratio medical soft, it is characterised in that comprise the following steps:1) first by SEBS, hardness adjusts polymer, antioxidant dry 2h-3h in 60-90 degree convection ovens;2) vaseline is melted at a temperature of 60-70 DEG C;3) raw material in step 1) is added to mixing in 60-70 DEG C of high-speed mixer, while all scholars melted in adding 2) Woods, is uniformly mixed discharging;4) mixture of step 3) is added into double screw extruder, melt blending, granulation.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109082005A (en) * | 2018-06-29 | 2018-12-25 | 威海联桥新材料科技股份有限公司 | A kind of Medical connector material and preparation method thereof |
CN110003600A (en) * | 2019-02-28 | 2019-07-12 | 威海联桥新材料科技股份有限公司 | Non- oil-filled peritoneal dialysis catheters TPE material of one kind and preparation method thereof |
CN110016197A (en) * | 2019-03-07 | 2019-07-16 | 盐城市恒星石油化学有限公司 | A kind of high mechanical and processing performance hydrocarbonaceous based resin composition |
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CN105801956A (en) * | 2016-03-24 | 2016-07-27 | 深圳市炫丽塑胶科技有限公司 | Medical infusion tube TPE material and preparing method thereof |
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CN101550257A (en) * | 2009-05-14 | 2009-10-07 | 威海洁瑞医用制品有限公司 | Thermoplastic elastomer composite material |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109082005A (en) * | 2018-06-29 | 2018-12-25 | 威海联桥新材料科技股份有限公司 | A kind of Medical connector material and preparation method thereof |
CN110003600A (en) * | 2019-02-28 | 2019-07-12 | 威海联桥新材料科技股份有限公司 | Non- oil-filled peritoneal dialysis catheters TPE material of one kind and preparation method thereof |
CN110016197A (en) * | 2019-03-07 | 2019-07-16 | 盐城市恒星石油化学有限公司 | A kind of high mechanical and processing performance hydrocarbonaceous based resin composition |
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Application publication date: 20180504 |