CN105601933A - 一种硅橡胶表面亲水涂层的制备方法 - Google Patents
一种硅橡胶表面亲水涂层的制备方法 Download PDFInfo
- Publication number
- CN105601933A CN105601933A CN201610077691.4A CN201610077691A CN105601933A CN 105601933 A CN105601933 A CN 105601933A CN 201610077691 A CN201610077691 A CN 201610077691A CN 105601933 A CN105601933 A CN 105601933A
- Authority
- CN
- China
- Prior art keywords
- solution
- preparation
- hydrophilic coating
- silastic
- silicone rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 41
- 239000011248 coating agent Substances 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000004945 silicone rubber Substances 0.000 title abstract description 9
- 239000000243 solution Substances 0.000 claims abstract description 50
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 33
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 30
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 30
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 30
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 20
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 11
- 239000007864 aqueous solution Substances 0.000 claims abstract description 6
- 239000003504 photosensitizing agent Substances 0.000 claims abstract description 6
- 229920000260 silastic Polymers 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 230000001235 sensitizing effect Effects 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- -1 silicon amide Chemical class 0.000 claims description 8
- 238000005576 amination reaction Methods 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 7
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- 239000012965 benzophenone Substances 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000012046 mixed solvent Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- 238000002791 soaking Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 15
- 239000004205 dimethyl polysiloxane Substances 0.000 description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 6
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000001000 micrograph Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229920000867 polyelectrolyte Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 230000010148 water-pollination Effects 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920001448 anionic polyelectrolyte Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000001772 blood platelet Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000413 hydrolysate Substances 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000447 polyanionic polymer Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/38—Polysiloxanes modified by chemical after-treatment
- C08G77/382—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon
- C08G77/388—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon containing nitrogen
-
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/04—Macromolecular materials
- A61L29/06—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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/08—Materials for coatings
- A61L29/085—Macromolecular materials
-
- 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
- A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
- A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
- A61L31/06—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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/08—Materials for coatings
- A61L31/10—Macromolecular materials
-
- 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
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/442—Block-or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/452—Block-or graft-polymers containing polysiloxane sequences containing nitrogen-containing sequences
-
- 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
- A61L2400/10—Materials for lubricating medical devices
-
- 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
- A61L2420/00—Materials or methods for coatings medical devices
- A61L2420/06—Coatings containing a mixture of two or more compounds
Abstract
本发明涉及一种硅橡胶表面亲水涂层的制备方法,包括下列顺序步骤:(1)将硅橡胶材料浸入新配的硅烷偶联剂溶液中,反应1.5小时后得到表面氨基化的硅橡胶;(2)将氨基化的硅橡胶浸入聚乙烯亚胺的水溶液中,用NaOH调节溶液的pH值,向溶液中加入环氧氯丙烷,通过化学反应得到表面接枝聚乙烯亚胺的硅橡胶;(3)配制聚乙烯吡咯烷酮的乙醇溶液,加入光敏剂,将表面接枝聚乙烯亚胺的硅橡胶在该溶液中浸泡,取出并在避光条件下自然干燥,移入紫外光固化装置中接受紫外光照射,如此在硅橡胶表面得到均匀的具有良好润滑性的亲水涂层。本发明的亲水涂层具有良好的附着力和生物相容性,特别适用于生物医学材料领域。
Description
所属技术领域
本发明属于生物医学材料领域,特别是涉及一种硅橡胶基材表面亲水润滑改性的方法。
背景技术
硅橡胶的优点是无毒、生物相容性好、氧气透过性高,制备方法简单、成本低、柔软而且有一定强度,所以硅橡胶是制造体腔及血管内介入器械如医用导管、内窥镜、腔道内支架等的最佳候选材料。但是硅橡胶属于非极性材料,表面能很低,所以将其用于介入医疗器械时还存在问题。比如,PDMS表面很容易粘附非极性物质,细菌通过粘附蛋白质很容易沾污PDMS表面,进而形成菌落,长期留置于人体时引起感染。PDMS用于长期植入式医疗器具时其表面粘附大量血小板引起血栓,甚至引起管形医用装置中的导管、套管、内窥镜等的内腔堵塞。再者,PDMS的摩擦系数比较大,没有润滑性。当未做润滑处理的PDMS材质医疗器械插入病人身体或从病人体内抽出,使病人非常痛苦,甚至擦伤所接触的人体组织。
综上所述,PDMS用于医疗器械所面临的核心问题是表面改性,也就是在不改变硅橡胶基体性质的前提下赋予其表面亲水润滑性。一些传统的表面改性方法如电晕、02等离子体强氧化剂刻蚀等被尝试用于硅橡胶表面改性。但是,这些方法不仅设备比较昂贵、操作条件苛刻,还有一个缺陷是处理后的硅橡胶表面性质不稳定,其表面会逐渐失去亲水性而重新回到疏水状态。因此,目前的硅橡胶表面改性方法主要是采用在硅橡胶基材表面形成亲水聚合物涂层。例如,可将硅橡胶基材浸入含有引发剂和亲水性单体的溶液中进行液相接枝聚合以得到亲水性聚合物涂层,但液相接枝聚合会在溶液中生成相当多均聚物,所以接枝后需要反复清洗以除去表面粘附的均聚物。再如美国专利7670686公开了一种对硅橡胶基材进行长效亲水改性的方法,该方法通过阴离子聚电解质和阳离子聚电解质的层层自组装在硅橡胶表面形成稳定的亲水性聚合物涂层。该方法是依靠苯乙烯-马来酸酐共聚物(PS-MA)为媒介将亲水涂层与硅橡胶基材结合起来,所以硅橡胶基材与亲水涂层之间并无明确的化学键结合;而且,层层自组装方法要求聚电解质溶液的浓度很稀,需要反复将基材交替浸入聚阴离子和聚阳离子的稀溶液中并且每次浸泡吸附之后都需要清洗表面,这导致操作步骤比较耗时。美国专利6596346公开了一种硅橡胶表面亲水改性方法,该方法先用氧等离子体处理使得硅橡胶表面引入极性基团,再用硅烷偶联剂处理硅橡胶,然后接枝聚乙二醇。该方法所用的氧等离子体设备比较昂贵、操作条件苛刻。
发明内容
本发明的目的是为了克服现有技术存在的缺陷,提供一种硅橡胶基材表面亲水润滑结构的制备方法。
本发明为实现上述目的,通过以下技术方案实现:
一种硅橡胶表面亲水润滑涂层的制备方法,其特征在于,包括以下步骤:
(1)硅橡胶表面氨基化
在乙醇/水混合溶剂中配置浓度为0.5wt%~5wt%的3-氨基丙基三乙氧基硅烷(APTS)溶液;将硅橡胶材料浸入APTS溶液中,搅拌,反应1.5小时,取出,用乙醇冲洗干净,干燥,得到表面氨基化的硅橡胶;
(2)硅橡胶表面接枝聚乙烯亚胺
将聚乙烯亚胺和NaOH溶解于去离子水中得到溶液,溶液中聚乙烯亚胺的浓度为水的5wt%~30wt%,溶液温度恒定在50℃;向上述溶液加入环氧氯丙烷,马上搅拌使得溶液均匀混合;迅速将步骤(1)得到的氨基化硅橡胶浸入上述聚乙烯亚胺水溶液中,在50℃下反应1小时,取出,自然干燥10min,用2wt%硫酸水溶液室温浸洗,再用去离子水浸洗2遍,除去硅橡胶表面的游离反应物,得到表面接枝聚乙烯亚胺的硅橡胶;
(3)硅橡胶表面接枝聚乙烯吡咯烷酮
以乙醇为溶剂配制浓度为0.75wt%的聚乙烯吡咯烷酮(PVP)溶液,加入光敏剂使得PVP溶液中光敏剂浓度为0.3wt%;将步骤(2)中制备的硅橡胶在PVP溶液中浸泡10min,取出,在避光条件下自然干燥5min,移入紫外光固化装置中接受紫外光照射,在光敏剂作用下使得PVP链之间、PVP链与聚乙烯亚胺之间都发生适度交联,如此在硅橡胶表面得到牢固的亲水涂层。
所述步骤(2)中聚乙烯亚胺的分子量为1500克/摩尔~5500克/摩尔。
所述步骤(2)中NaOH的加入量为去离子水的1wt%。
所述步骤(2)中聚乙烯亚胺与环氧氯丙烷的摩尔比为10∶1~3∶1。
所述步骤(3)中的聚乙烯吡咯烷酮(PVP)为PVPK90。
所述步骤(3)中的紫外光照射照射时间为15s~45s,优选为30s。
所述步骤(3)中的光敏剂为提氢型光引发剂,优选为二苯甲酮。
本发明先利用硅烷偶联剂作为硅橡胶基材与亲水涂层之间的结合媒介,然后接枝聚乙烯亚胺赋予硅橡胶表面一定的亲水性,但仅仅接枝聚乙烯亚胺还不足以产生良好的润滑效果。所以再通过紫外辐照接枝PVP,赋予硅橡胶良好的润滑性。
水接触角的测量;采用接触角测试仪,在室温下用测量液滴形状的方法测定亲水改性前后硅橡胶的水接触角。
本发明具有以下有益效果:
(1)本发明的硅橡胶表面改性方法中,硅烷偶联剂的水解产物与硅橡胶表面的结合力很强,偶联剂所带的氨基可与亲水涂层形成化学键,故可牢固的锚定亲水涂层;
(2)亲水涂层的外层是PVP,通过紫外光和光敏剂的作用使得整个涂层内形成适度交联,保证涂层不流失,耐摩擦磨损;而且高分子量PVP具有优异的亲水润滑性,使得介入式医疗器械在人体腔道中插入或取出时减少病人痛苦并防止软组织的摩擦损伤。
(3)本发明的改性方法原材料廉价易得,工艺过程和设备比较简单,易于推广。
附图说明
图1是未改性的硅橡胶表面的扫描电子显微镜照片(放大倍数为100倍)。
图2是改性后的硅橡胶表面的扫描电子显微镜照片(放大倍数为100倍)。
图3是未改性及改性后硅橡胶的水接触角照片。
具体实施方式
下面结合具体实施例对本发明作进一步的具体描述,但本发明的实施方式不限于此,对于未特别注明的工艺参数,可参照常规技术进行。
实施例1:
步骤(1):在乙醇/水混合溶剂中配置浓度为1.5wt%的3-氨基丙基三乙氧基硅烷(APTS)溶液;将硅橡胶材料浸入上述APTS溶液中,搅拌,反应1.5小时,取出,用乙醇冲洗干净,干燥,得到表面氨基化的硅橡胶;
步骤(2):将分子量为1500克/摩尔的聚乙烯亚胺和NaOH溶解于去离子水中得到溶液,溶液中聚乙烯亚胺的浓度为30wt%,NaOH浓度为水的1wt%,溶液温度恒定在50℃;向上述溶液加入环氧氯丙烷,使得聚乙烯亚胺与环氧氯丙烷的摩尔比为5∶1,马上搅拌使得溶液均匀混合;迅速将步骤(1)得到的氨基化硅橡胶浸入上述聚乙烯亚胺水溶液中,在50℃下反应4.5小时,取出,自然干燥10min,用2wt%硫酸水溶液室温浸洗,再用去离子水浸洗2遍,除去硅橡胶表面的游离反应物,得到表面接枝聚乙烯亚胺的硅橡胶;
步骤(3):以乙醇为溶剂配制浓度为0.75wt%的PVPK90溶液,加入光敏剂使得PVP溶液中光敏剂浓度为0.3wt%;将步骤(2)中制备的硅橡胶在PVP溶液中浸泡10min,取出,在避光条件下自然干燥5min,移入紫外光固化装置中,紫外光照射15s,在光敏剂作用下使得PVP链之间、PVP链与聚乙烯亚胺之间都发生适度交联,如此在硅橡胶表面得到牢固的亲水润滑性涂层。
图1和图2分别是未改性及改性后的硅橡胶表面扫描电子显微镜照片(放大倍数为100倍)。
图3是未改性及改性后硅橡胶的水接触角照片。A是未改性硅橡胶的水接触角,B是经过步骤(2)接枝聚乙烯亚胺之后硅橡胶的水接触角,θ=25°,达到亲水性的要求。经过步骤(3)接枝PVPK90之后在表面可形成完全铺展的水膜,接触角为0°。
实施例2
步骤(1):在乙醇/水混合溶剂中配置浓度为2.5wt%的3-氨基丙基三乙氧基硅烷(APTS)溶液;将硅橡胶材料浸入上述APTS溶液中,搅拌,反应1.5小时,取出,用乙醇冲洗干净,干燥,得到表面氨基化的硅橡胶;
步骤(2):将分子量为3500克/摩尔的聚乙烯亚胺和NaOH溶解于去离子水中得到溶液,溶液中聚乙烯亚胺的浓度为17wt%,NaOH浓度为水的1wt%,溶液温度恒定在50℃;向上述溶液加入环氧氯丙烷,使得聚乙烯亚胺与环氧氯丙烷的摩尔比为9∶1,马上搅拌使得溶液均匀混合;迅速将步骤(1)得到的氨基化硅橡胶浸入上述聚乙烯亚胺水溶液中,在50℃下反应4.5小时,取出,自然干燥10min,用2wt%硫酸水溶液室温浸洗,再用去离子水浸洗2遍,除去硅橡胶表面的游离反应物,得到表面接枝聚乙烯亚胺的硅橡胶;
步骤(3):以乙醇为溶剂配制浓度为0.75wt%的PVPK90溶液,加入光敏剂使得PVP溶液中光敏剂浓度为0.3wt%;将步骤(2)中制备的硅橡胶在PVP溶液中浸泡10min,取出,在避光条件下自然干燥5min,移入紫外光固化装置中,紫外光照射30s,在光敏剂作用下使得PVP链之间、PVP链与聚乙烯亚胺之间都发生适度交联,如此在硅橡胶表面得到牢固的亲水润滑性涂层。
实施例3
步骤(1):在乙醇/水混合溶剂中配置浓度为2wt%的3-氨基丙基三乙氧基硅烷(APTS)溶液;将硅橡胶材料浸入上述APTS溶液中,搅拌,反应1.5小时,取出,用乙醇冲洗干净,干燥,得到表面氨基化的硅橡胶;
步骤(2):将分子量为5200克/摩尔的聚乙烯亚胺和NaOH溶解于去离子水中得到溶液,溶液中聚乙烯亚胺的浓度为5wt%,NaOH加入量为水的1wt%,溶液温度恒定在50℃;向上述溶液加入环氧氯丙烷,使得聚乙烯亚胺与环氧氯丙烷的摩尔比为4.5∶1,马上搅拌使得溶液均匀混合;迅速将步骤(1)得到的氨基化硅橡胶浸入上述聚乙烯亚胺水溶液中,在50℃下反应4.5小时,取出,自然干燥10min,用2wt%硫酸水溶液室温浸洗,再用去离子水浸洗2遍,除去硅橡胶表面的游离反应物,得到表面接枝聚乙烯亚胺的硅橡胶;
步骤(3):以乙醇为溶剂配制浓度为0.75wt%的PVPK90溶液,加入光敏剂使得PVP溶液中光敏剂浓度为0.3wt%;将步骤(2)中制备的硅橡胶在PVP溶液中浸泡10min,取出,在避光条件下自然干燥5min,移入紫外光固化装置中,紫外光照射45s,在光敏剂作用下使得PVP链之间、PVP链与聚乙烯亚胺之间都发生适度交联,如此在硅橡胶表面得到牢固的亲水润滑性涂层。
Claims (7)
1.一种硅橡胶表面亲水涂层的制备方法,其特征在于,包括以下顺序步骤:
(1)硅橡胶表面氨基化
在乙醇/水混合溶剂中新鲜配置浓度为0.5wt%~5wt%的3-氨基丙基三乙氧基硅烷(APTS)溶液;硅橡胶材料浸入APTS溶液中,搅拌,反应1.5小时,取出,用乙醇冲洗干净,干燥,得到表面氨基化的硅橡胶;
(2)硅橡胶表面接枝聚乙烯亚胺
将聚乙烯亚胺和NaOH溶解于去离子水中得到溶液,溶液中聚乙烯亚胺的浓度为水的5wt%~30wt%,溶液温度恒定在50℃;向上述溶液加入环氧氯丙烷,马上搅拌使得溶液均匀混合;将步骤(1)得到的氨基化硅橡胶浸入上述聚乙烯亚胺水溶液中,在50℃下反应1小时,取出,自然干燥10min,用2wt%硫酸水溶液室温浸洗,再用去离子水浸洗2遍,除去硅橡胶表面的游离反应物,得到表面接枝聚乙烯亚胺的硅橡胶;
(3)硅橡胶表面接枝聚乙烯吡咯烷酮
以乙醇为溶剂配制浓度为0.75wt%的聚乙烯吡咯烷酮(PVP)溶液,加入光敏剂使得PVP溶液中光敏剂浓度为0.3wt%;将步骤(2)中制备的硅橡胶在PVP溶液中浸泡10min,取出,在避光条件下自然干燥5min,移入紫外光固化装置中接受紫外光照射,在光敏剂作用下使得PVP链之间、PVP链与聚乙烯亚胺之间都发生适度交联,如此在硅橡胶表面得到牢固的亲水涂层。
2.根据权利要求1所述的硅橡胶表面亲水涂层的制备方法,其特征在于,步骤(2)所述聚乙烯亚胺的分子量为1500克/摩尔~5500克/摩尔。
3.根据权利要求1所述的硅橡胶表面亲水涂层的制备方法,其特征在于,步骤(2)中NaOH的加入量为去离子水的1wt%。
4.根据权利要求1所述的硅橡胶表面亲水涂层的制备方法,其特征在于,步骤(2)中聚乙烯亚胺与环氧氯丙烷的摩尔比为10∶1~3∶1。
5.根据权利要求1所述的硅橡胶表面亲水涂层的制备方法,其特征在于,步骤(3)中所述的聚乙烯吡咯烷酮(PVP)为PVPK90。
6.根据权利要求1所述的硅橡胶表面亲水涂层的制备方法,其特征在于,步骤(3)中所述的紫外光照射时间为15s~45s,优选为30s。
7.根据权利要求1所述的硅橡胶表面亲水涂层的制备方法,其特征在于,步骤(3)中所述的光敏剂为提氢型光引发剂,优选为二苯甲酮。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610077691.4A CN105601933A (zh) | 2016-01-30 | 2016-01-30 | 一种硅橡胶表面亲水涂层的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610077691.4A CN105601933A (zh) | 2016-01-30 | 2016-01-30 | 一种硅橡胶表面亲水涂层的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN105601933A true CN105601933A (zh) | 2016-05-25 |
Family
ID=55982329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610077691.4A Pending CN105601933A (zh) | 2016-01-30 | 2016-01-30 | 一种硅橡胶表面亲水涂层的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105601933A (zh) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106700114A (zh) * | 2016-11-30 | 2017-05-24 | 中北大学 | 一种Marker球的制作方法 |
CN112442207A (zh) * | 2019-09-03 | 2021-03-05 | 四川大学 | 一种对聚二甲基硅氧烷材料进行改性的方法 |
CN112574460A (zh) * | 2020-12-16 | 2021-03-30 | 苏州凝智新材料发展有限公司 | 一种带有亲水润滑涂层的高分子医疗器械及其制备方法 |
CN113461866A (zh) * | 2021-07-28 | 2021-10-01 | 四川大学 | 亲水性废橡胶粉、高强度复合水凝胶及其制备方法与用途 |
CN114053488A (zh) * | 2021-12-17 | 2022-02-18 | 金陵科技学院 | 一种医用导管表面的持久润滑涂层及其制备方法 |
CN114805918A (zh) * | 2022-05-09 | 2022-07-29 | 青岛大学 | 一种疏油性聚四氟乙烯基材的制备方法 |
CN116966352A (zh) * | 2023-09-25 | 2023-10-31 | 比尔安达(上海)润滑材料有限公司 | 一种医用导管抗菌耐磨亲水涂层的制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040164018A1 (en) * | 2001-08-23 | 2004-08-26 | The Procter & Gamble Company | Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same |
WO2005062965A2 (en) * | 2003-12-23 | 2005-07-14 | Advanced Medical Optics, Inc. | Lubricious, biocompatible coatings for medical devices |
CN101351163A (zh) * | 2005-11-10 | 2009-01-21 | 忠诚股份有限公司 | 具有抗菌涂层的弹性物品 |
CN101914206A (zh) * | 2010-08-13 | 2010-12-15 | 东华大学 | 一种季铵化改性氨基硅油柔软剂、其制备和应用 |
CN102614789A (zh) * | 2012-04-06 | 2012-08-01 | 中国海洋大学 | 一种纳滤分离膜及其制备方法 |
CN104524986A (zh) * | 2014-12-08 | 2015-04-22 | 中国科学院宁波材料技术与工程研究所 | 一种表面涂覆多巴胺和聚乙烯亚胺阳离子的亲水抗菌膜的制备方法 |
-
2016
- 2016-01-30 CN CN201610077691.4A patent/CN105601933A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040164018A1 (en) * | 2001-08-23 | 2004-08-26 | The Procter & Gamble Company | Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same |
WO2005062965A2 (en) * | 2003-12-23 | 2005-07-14 | Advanced Medical Optics, Inc. | Lubricious, biocompatible coatings for medical devices |
CN101351163A (zh) * | 2005-11-10 | 2009-01-21 | 忠诚股份有限公司 | 具有抗菌涂层的弹性物品 |
CN101914206A (zh) * | 2010-08-13 | 2010-12-15 | 东华大学 | 一种季铵化改性氨基硅油柔软剂、其制备和应用 |
CN102614789A (zh) * | 2012-04-06 | 2012-08-01 | 中国海洋大学 | 一种纳滤分离膜及其制备方法 |
CN104524986A (zh) * | 2014-12-08 | 2015-04-22 | 中国科学院宁波材料技术与工程研究所 | 一种表面涂覆多巴胺和聚乙烯亚胺阳离子的亲水抗菌膜的制备方法 |
Non-Patent Citations (1)
Title |
---|
王聘: "医用导管表面亲水润滑改性", 《中国优秀硕士学位论文全文数据库 医药卫生科技辑》 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106700114A (zh) * | 2016-11-30 | 2017-05-24 | 中北大学 | 一种Marker球的制作方法 |
CN106700114B (zh) * | 2016-11-30 | 2019-04-05 | 中北大学 | 一种Marker球的制作方法 |
CN112442207A (zh) * | 2019-09-03 | 2021-03-05 | 四川大学 | 一种对聚二甲基硅氧烷材料进行改性的方法 |
CN112442207B (zh) * | 2019-09-03 | 2021-07-27 | 四川大学 | 一种对聚二甲基硅氧烷材料进行改性的方法 |
CN112574460A (zh) * | 2020-12-16 | 2021-03-30 | 苏州凝智新材料发展有限公司 | 一种带有亲水润滑涂层的高分子医疗器械及其制备方法 |
CN113461866A (zh) * | 2021-07-28 | 2021-10-01 | 四川大学 | 亲水性废橡胶粉、高强度复合水凝胶及其制备方法与用途 |
CN114053488A (zh) * | 2021-12-17 | 2022-02-18 | 金陵科技学院 | 一种医用导管表面的持久润滑涂层及其制备方法 |
CN114805918A (zh) * | 2022-05-09 | 2022-07-29 | 青岛大学 | 一种疏油性聚四氟乙烯基材的制备方法 |
CN114805918B (zh) * | 2022-05-09 | 2023-03-28 | 青岛大学 | 一种疏油性聚四氟乙烯基材的制备方法 |
CN116966352A (zh) * | 2023-09-25 | 2023-10-31 | 比尔安达(上海)润滑材料有限公司 | 一种医用导管抗菌耐磨亲水涂层的制备方法 |
CN116966352B (zh) * | 2023-09-25 | 2024-01-09 | 比尔安达(上海)润滑材料有限公司 | 一种医用导管抗菌耐磨亲水涂层的制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105601933A (zh) | 一种硅橡胶表面亲水涂层的制备方法 | |
JP4602556B2 (ja) | 親水性被覆を有する医療器具の滅菌方法 | |
CN111097072B (zh) | 一种高分子医疗产品表面强界面粘结亲水润滑涂层的制备方法 | |
AU2003291969B2 (en) | A hydrophilic coating and a method for the preparation thereof | |
JP5907957B2 (ja) | 親水性コーティングを製造するためのコーティング配合物 | |
JP5799023B2 (ja) | 迅速放出可能な抗菌剤を有する短時間使用のための医療デバイス | |
JP2013079382A (ja) | 高分子電解質を含む親水性コーティング | |
WO1998058990A1 (en) | A hydrophilic coating and a method for the preparation thereof | |
JP2011516230A (ja) | 親水性コーティングを有する改良された医療機器 | |
KR20090084847A (ko) | 실리콘 및 특정 폴리포스파젠을 포함하는 조성물 및 장치 | |
JP6938508B2 (ja) | 親水性医療デバイス | |
CN110833632B (zh) | 一种聚多巴胺薄膜及其制备方法和应用 | |
AU2017223298B2 (en) | Medical device with hydrophilic coating | |
EP2198897A1 (en) | Method for producing a medical device with a cross-linked hydrophilic coating | |
US20100100009A1 (en) | Device Having a Hydrophilic Coating Comprising P-Toluene-Sulfonamide and a Method for the Preparation Thereof | |
AU2010209101B2 (en) | Medical device which has lubricating surface when wet | |
JPH1052486A (ja) | 医療用具およびその製造方法 | |
JP2696053B2 (ja) | 潤滑性表面を有する医療用具、その製造法及びそのためのコーティング剤 | |
JP2008000233A (ja) | 医療用具及びその製造方法 | |
Butruk et al. | Polyvinylpyrrolidone-based coatings for polyurethanes–the effect of reagent concentration on their chosen physical properties | |
JP3973037B2 (ja) | 親水性基材およびその製造方法 | |
JPS63301234A (ja) | プラスチック表面の親水化方法 | |
JP4143894B2 (ja) | 医療用具およびその製造方法 | |
JP3336601B2 (ja) | 医療用具及びその製造方法 | |
CN116854977A (zh) | 一种tpu材料及其制备方法和应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |