CN111053945B - Environment-friendly high-strength high-resilience TPE (thermoplastic elastomer) tourniquet material and preparation method thereof - Google Patents
Environment-friendly high-strength high-resilience TPE (thermoplastic elastomer) tourniquet material and preparation method thereof Download PDFInfo
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- CN111053945B CN111053945B CN201911393893.XA CN201911393893A CN111053945B CN 111053945 B CN111053945 B CN 111053945B CN 201911393893 A CN201911393893 A CN 201911393893A CN 111053945 B CN111053945 B CN 111053945B
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- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920002725 thermoplastic elastomer Polymers 0.000 title description 20
- 229920013822 aminosilicone Polymers 0.000 claims abstract description 16
- 238000004132 cross linking Methods 0.000 claims abstract description 14
- 238000004073 vulcanization Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims abstract 11
- 238000002156 mixing Methods 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 239000005662 Paraffin oil Substances 0.000 claims description 3
- 238000005576 amination reaction Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000005984 hydrogenation reaction Methods 0.000 claims description 3
- 230000009965 odorless effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 40
- 239000004743 Polypropylene Substances 0.000 description 14
- 229920001155 polypropylene Polymers 0.000 description 14
- 229920001971 elastomer Polymers 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical class C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/06—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/046—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/04—Materials for stopping bleeding
Abstract
The invention discloses an environment-friendly high-strength high-resilience TPE tourniquet material and a preparation method thereof, wherein SEBS and semi-hydrogenated SEBS are mixed according to parts by weight and then added with amino silicone oil and white oil to fully absorb oil; adding PP into the obtained product, and granulating by twin-screw at 170-220 ℃; uniformly adding DCP into the obtained product, performing dynamic vulcanization by using a double screw at 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS; and extruding and molding the obtained product at 170-210 ℃ by a single-screw extruder, and cooling and shaping to obtain the product. The formula adopts the combination of macromolecule SEBS and semi-hydrogenated SEBS to improve the strength of the material, and adopts the dynamic crosslinking and grafting reaction technology in the process to improve the resilience of the material, reduce the deformation of the material and improve the hand feeling of the material.
Description
Technical Field
The invention relates to the field of material preparation, and particularly relates to an environment-friendly high-strength high-resilience TPE (thermoplastic elastomer) tourniquet material and a preparation method thereof.
Background
Thermoplastic elastomer tpe (thermoplastic elastomer) is a material with high elasticity, high strength, high resilience of rubber, and plastic processing characteristics. The environment-friendly, non-toxic and safe composite material has the advantages of environmental protection, no toxicity, wide hardness range, excellent colorability, soft touch, weather resistance, fatigue resistance, temperature resistance and excellent processing performance, does not need vulcanization, can be recycled to reduce the cost, can be subjected to secondary injection molding, is coated and adhered with matrix materials such as PP, PE, PC, PS, ABS and the like, and can also be formed independently.
The thermoplastic elastomer TPE tourniquet can replace the original vulcanized latex tourniquet hose as a novel environment-friendly material, plays a role in temporarily inhibiting blood flow, has the advantages of low price, convenience in carrying and sanitary use compared with the original substituted blood transfusion hose, and has a very wide market prospect.
In the prior art, a medical TPE tourniquet is generally prepared from thermoplastic polypropylene (PP), a thermoplastic elastomer hydrogenated styrene-butadiene-styrene block copolymer (SEBS) oil charge, and a suitable filler as raw materials.
Compared with a vulcanized latex hemostatic rubber tube, the existing TPE tourniquet product has the defects of overlarge rigidity, insufficient elasticity, large permanent deformation and the like. Although the medical TPE tourniquet in the prior art can meet basic requirements, the mechanical strength is insufficient, the surface hand feeling of an extruded tourniquet product is poor, and the elasticity is insufficient.
Disclosure of Invention
In order to solve the problem of strength of the existing TPE tourniquet, an environment-friendly high-strength high-resilience TPE tourniquet material and a preparation method thereof are provided.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the environment-friendly high-strength high-resilience TPE tourniquet material is prepared from the following raw materials in parts by weight:
100 parts of SEBS;
30-50 parts of semi-hydrogenated SEBS;
20-50 parts of PP;
5-10 parts of amino silicone oil;
80-120 parts of white oil;
1-3 parts of cross-linking agent DCP.
The further technology of the invention is as follows:
preferably, the SEBS is a polymer SEBS.
Preferably, the semi-hydrogenated SEBS is an SBS selective hydrogenation product.
Preferably, the PP is extrusion grade PP, and the melt index at 190 ℃ is 1-5 g/10 min.
Preferably, the silicone oil is amination cross-linking silicone oil with the molecular weight of 1000-10000.
Preferably, the white oil is paraffin oil with the molecular weight of 300-1000.
Preferably, the crosslinking agent is odorless DCP.
The invention also provides a preparation method of the environment-friendly high-strength high-resilience TPE tourniquet material, which comprises the following steps:
(1) mixing SEBS and semi-hydrogenated SEBS in parts by weight, adding amino silicone oil and white oil, and fully absorbing oil;
(2) adding PP into the product obtained in the step (1) and granulating by twin-screw at 170-220 ℃;
(3) uniformly adding DCP into the product obtained in the step (2), performing dynamic vulcanization by passing through a double screw at 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS;
(4) and (4) extruding and molding the product obtained in the step (3) at 170-210 ℃ by a single-screw extruder, and cooling and shaping to obtain the product.
The invention has the beneficial effects that:
the formula adopts the combination of macromolecule SEBS and semi-hydrogenated SEBS to improve the strength of the material.
The dynamic cross-linking and grafting reaction technology is adopted in the process, so that the resilience of the material is improved, the deformation of the material is reduced, and the hand feeling of the material is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.
The invention provides an environment-friendly high-strength high-resilience TPE (thermoplastic elastomer) tourniquet material, which comprises the following steps:
(1) mixing 100 parts of SEBS and 30-50 parts of semi-hydrogenated SEBS according to parts by weight, and adding 5-10 parts of amino silicone oil and 80-120 parts of white oil to sufficiently absorb oil;
(2) adding 20-50 parts of PP into the product obtained in the step (1) and granulating by twin-screw at the temperature of about 170-220 ℃;
(3) uniformly adding 1-3 parts of DCP into the product obtained in the step (2), performing dynamic vulcanization by using a double screw at the temperature of about 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS;
(4) and (4) extruding and molding the product obtained in the step (3) at the temperature of between 170 and 210 ℃ by a single-screw extruder, and cooling and shaping the product to obtain the product.
The SEBS is polymer SEBS.
The semi-hydrogenated SEBS is an SBS selective hydrogenation product.
The PP is extrusion-grade PP, and the melt index at 190 ℃ is 1-5 g/10 min.
The silicone oil is amination cross-linking silicone oil with the molecular weight of 1000-10000.
The white oil is paraffin oil with the molecular weight of 300-1000.
The cross-linking agent is odorless DCP.
The SEBS has excellent rubber elasticity, excellent weather resistance, low temperature resistance, environmental protection performance, recyclability and the like, and is very suitable for preparing the medical tourniquet;
the PP modified SEBS is used, so that the melt viscosity of the SEBS can be reduced, and the SEBS is easy to process; on the other hand, the mechanical property of the SEBS elastomer system can be effectively improved.
The formula adopts the combination of polymer SEBS and semi-hydrogenated SEBS, and the semi-hydrogenated SEBS has special unsaturated bonds and can be crosslinked, so that the strength of the material is improved;
the semi-hydrogenated SEBS is a selective SBS hydrogenated product, has a special unsaturated bond, and can perform a vulcanization crosslinking reaction.
The process adopts dynamic crosslinking and grafting reaction technology to graft polar groups on materials in the formula, so that the polarity of the materials is improved, the rebound resilience, the resilience force and the strength are improved, the special SEBS in the formula is dynamically crosslinked, and the crosslinked reticular rubber microstructure can also improve the rebound resilience, the resilience force, the strength and the hand feeling of the materials, improve the rebound resilience force of the materials, reduce the deformation of the materials and improve the hand feeling of the materials.
Specifically, the experiment was carried out in the following three examples:
example 1:
(1) mixing 100 parts of SEBS and 30 parts of semi-hydrogenated SEBS according to parts by weight, adding 5 parts of amino silicone oil and 80 parts of white oil, and fully absorbing oil;
(2) adding 20 parts of PP into the product obtained in the step (1) and granulating by twin-screw at the temperature of about 170-220 ℃;
(3) uniformly adding 1 part of DCP into the product obtained in the step (2), performing dynamic vulcanization by passing through a double screw at the temperature of about 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS;
(4) and (4) extruding and molding the product obtained in the step (3) at the temperature of between 170 and 210 ℃ by a single-screw extruder, and cooling and shaping the product to obtain the product.
Example 2:
(1) mixing 100 parts of SEBS and 50 parts of semi-hydrogenated SEBS according to parts by weight, adding 10 parts of amino silicone oil and 120 parts of white oil, and fully absorbing oil;
(2) adding 50 parts of PP into the product obtained in the step (1) and granulating by twin-screw at the temperature of about 170-220 ℃;
(3) uniformly adding 3 parts of DCP into the product obtained in the step (2), performing dynamic vulcanization by passing through a double screw at the temperature of about 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS;
(4) and (4) extruding and molding the product obtained in the step (3) at the temperature of between 170 and 210 ℃ by a single-screw extruder, and cooling and shaping the product to obtain the product.
Example 3:
(1) mixing 100 parts of SEBS and 40 parts of semi-hydrogenated SEBS according to parts by weight, adding 7 parts of amino silicone oil and 100 parts of white oil, and fully absorbing oil;
(2) adding 40 parts of PP into the product obtained in the step (1) and granulating by twin-screw at the temperature of about 170-220 ℃;
(3) uniformly adding 2 parts of DCP into the product obtained in the step (2), performing dynamic vulcanization by passing through a double screw at the temperature of about 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS;
(4) and (4) extruding and molding the product obtained in the step (3) at the temperature of between 170 and 210 ℃ by a single-screw extruder, and cooling and shaping the product to obtain the product.
Tests of strength, resilience and the like were made for the above 3 examples and comparative examples:
through the above experiments, it was found that the tensile strength and elongation at break of example 1 are the highest, the hardness and tensile set property of example 2 are the highest, and the tear strength of example 3 is the highest, but at the same time, the hardness, tensile strength, elongation at break and tensile set are all centrally expressed;
through the experiment, on the premise of ensuring higher strength and resilience, the invention also needs to ensure excellent hand feeling, and the embodiment 3 is the best embodiment.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high TPE tourniquet material that kick-backs of environmental protection high strength which characterized in that: the feed is prepared from the following raw materials in parts by weight:
the amino silicone oil is amination cross-linking silicone oil with the molecular weight of 1000-10000.
2. The environmentally friendly high strength high resilience TPE tourniquet material of claim 1, wherein: the SEBS is polymer SEBS.
3. The environmentally friendly high strength high resilience TPE tourniquet material of claim 1, wherein: the semi-hydrogenated SEBS is an SBS selective hydrogenation product.
4. The environmentally friendly high strength high resilience TPE tourniquet material of claim 1, wherein: the PP is extrusion-grade PP, and the melt index at 190 ℃ is 1-5 g/10 min.
5. The environmentally friendly high strength high resilience TPE tourniquet material of claim 1, wherein: the white oil is paraffin oil with the molecular weight of 300-1000.
6. The environmentally friendly high strength high resilience TPE tourniquet material of claim 1, wherein: the cross-linking agent is odorless DCP.
7. The preparation method of the environment-friendly high-strength high-resilience TPE tourniquet material according to any one of claims 1 to 6 comprises the following steps:
(1) mixing SEBS and semi-hydrogenated SEBS in parts by weight, adding amino silicone oil and white oil, and fully absorbing oil;
(2) adding PP into the product obtained in the step (1) and granulating by twin-screw at 170-220 ℃;
(3) uniformly adding DCP into the product obtained in the step (2), performing dynamic vulcanization by passing through a double screw at 170-210 ℃, and performing crosslinking grafting on amino silicone oil and semi-hydrogenated SEBS;
(4) and (4) extruding and molding the product obtained in the step (3) at 170-210 ℃ by a single-screw extruder, and cooling and shaping to obtain the product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393893.XA CN111053945B (en) | 2019-12-30 | 2019-12-30 | Environment-friendly high-strength high-resilience TPE (thermoplastic elastomer) tourniquet material and preparation method thereof |
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| CN201911393893.XA CN111053945B (en) | 2019-12-30 | 2019-12-30 | Environment-friendly high-strength high-resilience TPE (thermoplastic elastomer) tourniquet material and preparation method thereof |
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| CN111053945A CN111053945A (en) | 2020-04-24 |
| CN111053945B true CN111053945B (en) | 2021-12-10 |
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| CN111391275A (en) * | 2020-05-20 | 2020-07-10 | 东莞市山普科技有限公司 | Production process of modified TPE material and modified TPE material |
| CN114316495B (en) * | 2021-12-28 | 2023-05-09 | 安徽雄亚塑胶科技有限公司 | TPE material for yoga mat and preparation method |
| CN114410050A (en) * | 2021-12-28 | 2022-04-29 | 安徽雄亚塑胶科技有限公司 | Smooth elastomer material, preparation method and application |
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| CN110283414A (en) * | 2019-07-19 | 2019-09-27 | 江苏金陵奥普特高分子材料有限公司 | Gao Dingshen high springs back thermoplastic elastomer (TPE) and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110577743A (en) * | 2019-08-26 | 2019-12-17 | 昆山融点化工有限公司 | Dynamic vulcanized silicone rubber and preparation method thereof |
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|---|---|---|---|---|
| CN1055369A (en) * | 1990-01-16 | 1991-10-16 | 无比石油公司 | Solid block and random elastomeric copolymers |
| WO1995000566A1 (en) * | 1993-06-24 | 1995-01-05 | Mobil Oil Corporation | Solid elastomeric block copolymers |
| JP2000327846A (en) * | 1999-01-28 | 2000-11-28 | Sumitomo Bakelite Co Ltd | Thermoplastic elastomer composition |
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Denomination of invention: An environmentally friendly, high-strength, and high rebound TPE tourniquet material and its preparation method Granted publication date: 20211210 Pledgee: Wuyi sub branch of Chuzhou Wandong Rural Commercial Bank Co.,Ltd. Pledgor: ANHUI XIONGYA PLASTIC TECHNOLOGY Co.,Ltd. Registration number: Y2024980011221 |