CN111534032B - 一种生物相容性好的3d打印材料 - Google Patents
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Abstract
本发明公开一种生物相容性好的3D打印材料,该材料符合USP VI级标准,包括重量百分比组成如下:钽、铌、钛合金纳米簇0.5%‑1.5%、Ti‑13Mo‑7Zr‑3Fe合金纳米簇0.2%‑2.0%、低迁移生物相容性活性化合物55%‑90%、低迁移生物相容性光引发剂3%‑9%。本发明通过开发生物相容性好的3D打印材料,并通过添加惰性钽、铌、钛合金纳米簇,Ti‑13Mo‑7Zr‑3Fe合金纳米簇赋予3D打印材料良好的生物相容性,满足更多临床应用。
Description
技术领域
本发明涉及3D打印技术领域,特别涉及一种生物相容性好的3D打印材料。
背景技术
生物相容性指材料在机体的特定部位引起恰当的反应;根据国际标淮化组织会议的解释,生物相容性是指生命体组织对非活性材料产生反应的一种性能,一般是指材料与宿主之间的相容性;生物材料植入人体后,对特定的生物组织环境产生影响和作用,生物组织对生物
材料也会产生影响和作用,两者的循环作用一直持续,直到达到平衡或者植入物被去除。
3D打印技术目前已经步入了飞速发展的时代,3D打印被赋予了“第三次工业革命”的大背景,以3D打印技术为代表的快速成型技术被看作是引发新一轮工业革命的关键要素。
近年来,3D打印技术被广泛应用于临床医学领域,由于其能以不同患者不同需求为依据,快速,精确且有针对性地制备出具有个性化的生物医用材料,同时,还能够精确控制材料的微观结构;然而,该技术在医用材料的应用过程中,由于一些原材料在打印过程中,存在生物相容性的问题,不能打印出所需的产品,制约其在临床领域的应用。
发明内容
针对现有技术存在的问题,本发明提供一种生物相容性好的3D打印材料。
为了实现上述目的,本发明技术方案如下:
一种生物相容性好的3D打印材料,该材料符合EN-ISO 10993-1:2009 /AC:2010和USP VI级标准,包括重量百分比组成如下:钽、铌、钛合金纳米簇0.5%-1.5%、Ti-13Mo-7Zr-3Fe合金纳米簇0.2%-2.0%、低迁移生物相容性活性化合物55%-90%、低迁移生物相容性光引发剂3%-9%。
较佳地,所述的低迁移生物相容性活性化合物选自:改性双酚A双甲基丙烯酸缩水甘油酯、乙氧基化双酚A双甲基丙烯酸缩水甘油酯(EBPDMA)、二甲基丙烯酸氨基甲酸酯(UDMA)、2-甲基-2丙烯酸-1,12-十二双醇酯(D3MA),三乙二醇二甲基丙烯酸酯(TEGDMA)、甲基丙烯酸羟乙酯中的一种或多种。
较佳地,所述改性双酚A双甲基丙烯酸缩水甘油酯的制备方法如下:
(1)、取一定量的溶剂乙酸乙酯加入到四口烧瓶中;
(2)、称取一定量的反应单体双酚A双甲基丙烯酸缩水甘油酯加入到四口烧瓶中,然后进行恒温、搅拌并通入氮气;
(3)、一段时间后,再量取一定量的反应单体全氟丁基磺酰氟加入到滴定管中,并称取一定量的氧化钠加入到四口烧瓶中,接着滴入量好的全氟丁基磺酰氟于烧瓶中进行反应;
(4)、待反应完成后,再依次进行过滤除去杂质、水洗与分液多次除去盐类、旋蒸除去溶剂和水,然后加入溶剂和干燥剂,接着过滤与旋蒸除去剩余的水和溶剂,最后真空干燥除去微量的溶剂和水,得到纯净的产物。
较佳地,所述钽、铌、钛合金纳米簇采用市售产品。
较佳地,所述Ti-13Mo-7Zr-3Fe合金纳米簇采用市售产品。
较佳地,所述生物相容性好的3D打印材料,所述低迁移生物相容性光引发剂选自光引发剂ASA、光引发剂OMTX、光引发剂OMBP、光引发剂CQ、光引发剂784中的一种或多种。
本发明还提供一种生物相容性好的3D打印材料的制备方法,包括如下步骤:
调配材料采用DLP/SLA /LCD3D打印技术,进行3D打印定型固化:在45-55℃的水温下,用超声波清洗机超声5-15min,再将其置于匀浆机搅拌均匀,得到生物相容性好的3D打印成品。
采用本发明的技术方案,具有以下有益效果:本发明通过开发生物相容性好的3D打印材料,并通过添加惰性钽、铌、钛合金纳米簇,Ti-13Mo-7Zr-3Fe合金纳米簇赋予3D打印材料良好的生物相容性,满足更多临床应用。
具体实施方式
以下结合具体实施例,对本发明进一步说明。
实施例1:
一种生物相容性好的3D打印材料,该3D打印材料重量百分比组成如下:
钽、铌、钛合金纳米簇 0.5%;
Ti-13Mo-7Zr-3Fe合金纳米簇0.5%;
改性双酚A双甲基丙烯酸缩水甘油酯 20%;
乙氧基化双酚A双甲基丙烯酸缩水甘油酯75%;
光引发剂OMBP 4%。
所述按照实施例1上述比例调配材料,在50℃的水温下,用超声波清洗机超声10min,再将其置于匀浆机搅拌均匀,得到生物相容性好的3D打印材料,然后测试其性能。
实施例2:
生物相容性好的3D打印材料,该3D打印材料重量百分比组成如下:
钽、铌、钛合金纳米簇 1%;
Ti-13Mo-7Zr-3Fe合金纳米簇0.5%;
二甲基丙烯酸氨基甲酸酯 19.5%;
乙氧基化双酚A双甲基丙烯酸缩水甘油酯75%;
光引发剂OMBP 4%。
所述按照实施例2上述比例调配材料,在50℃的水温下,用超声波清洗机超声10min,再将其置于匀浆机搅拌均匀,得到生物相容性好的3D打印材料,然后测试其性能。
光固化树脂对比例1:
二甲基丙烯酸氨基甲酸酯 16%;
乙氧基化双酚A双甲基丙烯酸缩水甘油酯80%;
光引发剂OMBP 4%。
所述按照对比例1上述比例调配材料,在50℃的水温下,用超声波清洗机超声10min,再将其置于匀浆机搅拌均匀,得到3D打印材料,然后测试其性能。
光固化树脂对比例2:
Ti-13Mo合金纳米簇 1.5%;
二甲基丙烯酸氨基甲酸酯 19.5%;
乙氧基化双酚A双甲基丙烯酸缩水甘油酯75%;
光引发剂OMBP 4%。
所述按照对比例2上述比例调配材料,在50℃的水温下,用超声波清洗机超声10min,再将其置于匀浆机搅拌均匀,得到3D打印材料,然后测试其性能。
上述实施例1-2与光固化树脂对比例1-2的性能对比结果如下表1:
表1:
项目 | 实施例1 | 实施例2 | 对比例1 | 对比例2 |
断裂伸长率(%) | 2.2 | 2.0 | 3.1 | 2.7 |
光固化活性 | 优 | 优 | 优 | 优 |
固化收缩率(%) | 2.0 | 2.0 | 2.8 | 2.9 |
粘度(cps/25℃) | 3.0 | 3.1 | 3.5 | 3.5 |
缺口冲击强度(KJ/m2) | 29.9 | 28.9 | 28.2 | 29.1 |
拉伸强度(MPa) | 25.86 | 25.78 | 25.23 | 24.12 |
GB/T20197-2006 | 符合 | 符合 | 符合 | 符合 |
USP VI | 符合 | 符合 | 不符合 | 不符合 |
经检测实施例1、实施例2,符合USP VI级标准;通过添加惰性钽、铌、钛合金纳米簇,Ti-13Mo-7Zr-3Fe合金纳米簇赋予3D打印材料良好的生物相容性,满足更多临床应用。
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是在本发明的发明构思下,利用本发明说明书内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。
Claims (1)
1.一种生物相容性好的3D打印材料,其特征在于,该材料符合USP VI级标准,包括重量百分比组成如下:钽、铌、钛合金纳米簇0.5%-1.5%、Ti-13Mo-7Zr-3Fe合金纳米簇0.2%-2.0%、低迁移生物相容性活性化合物55%-90%、低迁移生物相容性光引发剂3%-9%;所述的低迁移生物相容性活性化合物选自:改性双酚A双甲基丙烯酸缩水甘油酯、乙氧基化双酚A双甲基丙烯酸缩水甘油酯、二甲基丙烯酸氨基甲酸酯、2-甲基-2- 丙烯酸-1,12-十二双醇酯、三乙二醇二甲基丙烯酸酯、甲基丙烯酸羟乙酯中的一种或多种;
所述改性双酚A双甲基丙烯酸缩水甘油酯的制备方法如下:
(1)、取一定量的溶剂乙酸乙酯加入到四口烧瓶中;
(2)、称取一定量的反应单体双酚A双甲基丙烯酸缩水甘油酯加入到四口烧瓶中,然后进行恒温、搅拌并通入氮气;
(3)、再量取一定量的反应单体全氟丁基磺酰氟加入到滴定管中,并称取一定量的氧化钠加入到四口烧瓶中,接着滴入量好的全氟丁基磺酰氟于烧瓶中进行反应;
(4)、待反应完成后,再依次进行过滤、水洗与分液多次、旋蒸,然后加入溶剂和干燥剂,接着过滤与旋蒸,最后真空干燥,得到纯净的产物;
所述低迁移生物相容性光引发剂选自光引发剂ASA、光引发剂OMTX、光引发剂OMBP、光引发剂CQ、光引发剂784中的一种或多种;
所述的生物相容性好的3D打印材料的制备方法,包括如下步骤:
调配材料采用DLP/SLA /LCD3D打印技术,进行3D打印定型固化:在45-55℃的水温下,用超声波清洗机超声5-15min,再将其置于匀浆机搅拌均匀,得到生物相容性好的3D打印成品。
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