CN102617934B - Easily welded medical polymer composition and preparation method thereof - Google Patents
Easily welded medical polymer composition and preparation method thereof Download PDFInfo
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- CN102617934B CN102617934B CN 201210094817 CN201210094817A CN102617934B CN 102617934 B CN102617934 B CN 102617934B CN 201210094817 CN201210094817 CN 201210094817 CN 201210094817 A CN201210094817 A CN 201210094817A CN 102617934 B CN102617934 B CN 102617934B
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- 239000000203 mixture Substances 0.000 title claims abstract description 34
- 229920000642 polymer Polymers 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 37
- 239000004743 Polypropylene Substances 0.000 claims abstract description 16
- 229920001155 polypropylene Polymers 0.000 claims abstract description 13
- -1 polypropylene Polymers 0.000 claims abstract description 8
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 20
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 6
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 125000003700 epoxy group Chemical group 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229920001577 copolymer Polymers 0.000 abstract 2
- 239000008187 granular material Substances 0.000 abstract 1
- 229920002959 polymer blend Polymers 0.000 abstract 1
- 239000002861 polymer material Substances 0.000 abstract 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 16
- 239000000463 material Substances 0.000 description 12
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 8
- 229920001400 block copolymer Polymers 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- BXOUVIIITJXIKB-UHFFFAOYSA-N ethene;styrene Chemical class C=C.C=CC1=CC=CC=C1 BXOUVIIITJXIKB-UHFFFAOYSA-N 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
The invention relates to an easily welded medical polymer composition and a preparation method thereof belonging to the field of polymer materials, in particular to preparation technology for an easily welded medical polymer composition without added plasticizing agents. Weighed hydrogenated styrene-ethylene-butene-styrene rubber segmented copolymer, copolymer polypropylene and polyhedral organicsilsesquioxane are mixed and then extruded by a double-screw extruder to granulate. The easily welded medical polymer composition without the added plasticizing agents is polymer blend based on SEBS (styrene-ethylene-butene-styrene) and c-PP (complex prosodic phrase), the POSS (polyhedral organic silsesquioxane) is added, and without changing transparency and other performances of the SEBS/c-PP, the SEBS/c-PP composition has a solvent welding performance, and ultrasonic and laser welding performances of the SEBS/c-PP composition are improved.
Description
Technical field
The present invention relates to belong to polymeric material field, particularly a kind of medical polymer preparation of compositions technology that is easy to welding of not having the softening agent interpolation.
Background technology
SEBS is a kind of hydrogenated styrene-ethene-butylene-styrene rubber block copolymers, has progressively moved towards market as the substitute of new medical macromolecular material.Up-to-date SEBS is based on the Reinforced Rubber block, and butene content is higher, has promoted processing characteristics and has reached and polyacrylic compatibility, and the high-density contiguous network of material makes transparency significantly improve.At room temperature second-order transition temperature (Tg) scope is widened.Having improved damping characteristic, is very useful to medical pipe.C-PP is Co-polypropylene, SEBS and c-PP blend is become the surrogate of most suitable plasticized PVC.
At present, polyvinyl chloride hose can be with radio frequency or solvent welding, and what linking agent was used is tetrahydrofuran (THF) or pimelinketone, with convenient bonding.These pipes all are immersed in the solvent and are connected to the hard PVC joint, or on the valve.Such strength of joint is very good.But it is weldable not that the SEBS/c-PP based composition and use thereof in packaging uses the solvent of medical treatment approval.
People consider that assessment result is: ultrasonic welding can't be realized the welding of SEBS/c-PP and polar material such as polycarbonate with ultrasonic welding and laser welding, and are only effective to polypropylene PP, and cause distortion; Laser welding needs to apply infrared absorbing agents at material surface in advance.
Summary of the invention
The present invention seeks to propose a kind of medical polymer composition that is easy to welding.
The present invention is made up of each component of following weight percentage: hydrogenated styrene-ethene-butylene-styrene rubber block copolymers (SEBS) 9.99 ~ 89.99%; Co-polypropylene (c-PP) 10 ~ 90%; Polyhedron organic sesqui siloxane (POSS) 0.01 ~ 20%.
Preferably, hydrogenated styrene-ethene of the present invention-butylene-styrene rubber block copolymers, Co-polypropylene and polyhedron organic sesqui siloxane account for 29.9 ~ 69.9%, 30 ~ 70% and 0.1 ~ 8% of composition total weight respectively.
The present invention is based on the blend of hydrogenated styrene-ethene-butylene-styrene rubber block copolymers (SEBS) and Co-polypropylene (c-PP), add polyhedron organic sesqui siloxane (POSS), under the prerequisite that does not change the SEBS/c-PP transparency and other performances, provide solubility property, vibration of ultrasonic wave performance and the laser absorption performance of solvent by organic group and the Si-O key of introducing for composition, thereby make the SEBS/c-PP composition have the solvent welding performance, improve ultrasonic wave and the laser welding performance of SEBS/c-PP composition.
Wherein, the melt flow rate (MFR) MFR of described SEBS is 2 ~ 7g/10min (230 ℃, 2.16kg descends together); The MFR of preferred SEBS is 3 ~ 7g/10min.The melt flow rate (MFR) MFR of described c-PP is 1 ~ 15g/10min (230 ℃, 2.16kg descends together); The MFR of preferred c-PP is 1.8 ~ 11g/10min.
Described POSS comprises methyl POSS, phenyl POSS, vinyl POSS, isobutyl-POSS, iso-octyl POSS, methacrylic acid group POSS, amino POSS, organic silica-based POSS, epoxy group(ing) EP-POSS, one or more among the norbornene POSS etc.Isobutyl-POSS preferably, iso-octyl POSS, one or more among the methacrylic acid group POSS etc.
Another purpose of the present invention is the medical polymer preparation of compositions method that is easy to welding more than the proposition:
After load weighted hydrogenated styrene-ethene-butylene-styrene rubber block copolymers, Co-polypropylene and the mixing of polyhedron organic sesqui siloxane, through the twin screw extruder extruding pelletization.
Manufacture craft of the present invention is simple, and convenient production is practical.
Embodiment
One, embodiment:
Material choice:
SEBS: the trade mark: G1645 rises in section, and MFR:3g/10min (230 ℃, 2.16kg)
C-PP: the trade mark: Basell Moplen RP340N, MFR:11g/10min (230 ℃, 2.16kg)
POSS: the trade mark: the methacrylate based POSS:MA0735 that the hydridization Plastics Company is produced;
Iso-octyl POSS:MS0805, isobutyl-POSS:MS0825.
Table 1 has been listed the embodiment of the present composition and the prescription of Comparative Examples.
Table 1:
| Form | The trade mark | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative Examples 1 |
| SEBS | G1645 | 49.5 | 45 | 45 | 50 |
| c-PP | RP340N | 50 | 50 | 45 | 50 |
| POSS | MA0735 | 0.5 | -- | -- | -- |
| POSS | MS0805 | -- | 5 | -- | -- |
| POSS | MS0825 | -- | -- | 10 | -- |
In the table 1, moiety is weight percentage %.
Press each proportioning weighing of table 1, after semihydrogenation styrene-ethylene-butylene-styrene rubber block copolymers, Co-polypropylene and polyhedron organic sesqui siloxane mix then, through the twin screw extruder extruding pelletization.
Two, the weldability of composition test:
To go up composition that each example forms earlier, to extrude external diameter through the flexible pipe production line be 6.5 ± 0.1mm, and wall thickness is the individual layer flexible pipe of 0.8 ± 0.1mm, the test cementability: flexible pipe is cut, directly be fused on one 2 millimeters the injection moulding test specimen.The connector material that test specimen is selected comprises polycarbonate and polyolefine c-PP.
Ultrasonic welding is by last weldment ultrasonic energy to be sent to welding zone, utilize the interface place acoustic resistance of two welding big, and generation localized hyperthermia, make the junction surface of flexible pipe and web member produce frictional heat and moment fusion joint, the welding strength height, can reach watertight and airtight, and exempt the inconvenience of adopting supplement to bring, realize the welding of high-efficiency cleaning.The laser plastic welding is called the welding of laser penetration formula or penetration IR welding again.Its principle be the laser penetration transparent plastics and in the heat absorption the junction surface convert heat to, because two kinds of materials of welding are pressed together on together in fusion process, thermal bonding face conduction forms two kinds of materials and all melts and be bonded together, and inside also can so produce local heating and pressure simultaneously.Outside and the inner pressure that produces is to form good welding conditions needed.Thereby the Si-O key of POSS can promote the material heat absorption to be beneficial to ultrasonic wave and laser welding in the present composition.Solvent welding is with flexible pipe and web member surface dip-coating tetrahydrofuran (THF), the surface that will scribble tetrahydrofuran (THF) again paste mutually and, give suitable pressure and temperature.Because POSS work in-process tendency evenly is enriched in material surface, the POSS that is rich in organo-functional group can be dissolved in organic solvents such as tetrahydrofuran (THF) under certain pressure and temperature, so can make composition material by solvent and web member welding.
Table 2 has been listed the present composition and has been made the cementability test result that difference is connected behind the flexible pipe material.
Table 2:
In the table 2, infrared absorbing agents is silicon-dioxide.
By table 2 as seen: SEBS/c-PP composition of the present invention has solvent and ultrasonic welding performance, and its laser welding performance also improves.
Claims (9)
1. a medical polymer composition that is easy to welding is characterized in that, be made up of each component of following weight percentage: SEBS 9.99 ~ 89.99%; Co-polypropylene 10 ~ 90%; Polyhedron organic sesqui siloxane 0.01 ~ 20%.
2. according to the described medical polymer composition that is easy to welding of claim 1, it is characterized in that described SEBS, Co-polypropylene and polyhedron organic sesqui siloxane account for 29.9 ~ 69.9%, 30 ~ 70% and 0.1 ~ 8% of composition total weight respectively.
3. according to claim 1 or the 2 described medical polymer compositions that are easy to welding, it is characterized in that the melt flow rate (MFR) MFR of described SEBS under 230 ℃ and 2.16kg condition is 2 ~ 7g/10min.
4. according to claim 1 or the 2 described medical polymer compositions that are easy to welding, it is characterized in that the melt flow rate (MFR) MFR of described Co-polypropylene under 230 ℃ and 2.16kg condition is 1 ~ 15g/10min.
5. according to the described medical polymer composition that is easy to welding of claim 4, it is characterized in that the melt flow rate (MFR) MFR of described Co-polypropylene under 230 ℃ and 2.16kg condition is 1.8 ~ 11g/10min.
6. according to claim 1 or the 2 described medical polymer compositions that are easy to welding, it is characterized in that the MFR of described SEBS under 230 ℃ and 2.16kg condition is 3 ~ 7g/10min.
7. according to the described medical polymer composition that is easy to welding of claim 1, it is characterized in that described polyhedron organic sesqui siloxane be among methyl POSS, phenyl POSS, vinyl POSS, isobutyl-POSS, iso-octyl POSS, methacrylic acid group POSS, amino POSS, organic silica-based POSS, epoxy group(ing) EP-POSS or the norbornene POSS at least any one.
8. according to the described medical polymer composition that is easy to welding of claim 7, it is characterized in that described polyhedron organic sesqui siloxane be among isobutyl-POSS, iso-octyl POSS or the methacrylic acid group POSS at least any one.
9. be easy to the medical polymer preparation of compositions method of welding according to claim 1, it is characterized in that after SEBS, Co-polypropylene and the mixing of polyhedron organic sesqui siloxane, through the twin screw extruder extruding pelletization.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210094817 CN102617934B (en) | 2012-03-31 | 2012-03-31 | Easily welded medical polymer composition and preparation method thereof |
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| CN 201210094817 CN102617934B (en) | 2012-03-31 | 2012-03-31 | Easily welded medical polymer composition and preparation method thereof |
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| CN102617934A CN102617934A (en) | 2012-08-01 |
| CN102617934B true CN102617934B (en) | 2013-09-11 |
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| CN103980615B (en) * | 2014-05-23 | 2016-06-29 | 北京汽车股份有限公司 | A kind of POSS/PP composite and in the application prepared on automotive trim in plaque |
| CN105367974A (en) * | 2015-11-18 | 2016-03-02 | 安徽雄亚塑胶科技有限公司 | Low temperature resistant TPE composition and ice cube tray prepared therefrom |
| CN111040296B (en) * | 2019-12-25 | 2022-03-29 | 苏州度辰新材料有限公司 | Polyolefin composition with high mechanical property and preparation method thereof |
| CN111592732A (en) * | 2020-06-23 | 2020-08-28 | 宁波聚泰新材料科技有限公司 | Multifunctional thermoplastic elastomer material with low dielectric constant and production process thereof |
| CN113462075A (en) * | 2021-06-02 | 2021-10-01 | 高邮市汉升高分子材料有限公司 | Preparation method of polypropylene material for medical injector |
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| JP2000197688A (en) * | 1999-01-05 | 2000-07-18 | Terumo Corp | Medical container |
| US20080194736A1 (en) * | 2007-02-13 | 2008-08-14 | Minqiu Lu | PVC nanocomposite manufacturing technology and applications |
| CN101724982A (en) * | 2009-11-18 | 2010-06-09 | 天津工业大学 | POSS-modified polypropylene melt-blown nonwoven fabric and preparation method thereof |
| CN101798433A (en) * | 2010-03-16 | 2010-08-11 | 成都市新津事丰医疗器械有限公司 | Non-PVC material for medical infusion products and preparation method thereof |
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