CN106188648B - 一种魔芋高温发泡组合物及其制备方法 - Google Patents
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Abstract
本发明公开了一种魔芋高温发泡组合物及制备方法,属于生物可降解材料领域。将魔芋粉、发泡剂、分散剂、凝固剂溶入乙醇溶液中混合制浆,在180‑240°C下高温发泡,不需漂白洗涤等工序,经冷冻、脱水、干燥即可得到中高密度魔芋海绵。本发明的魔芋海绵可以将模具在烘箱、烤箱、油浴等高温情况下均匀发泡,可以设计成各种形状,方便成型与定型。可以作为生物可降解支架材料或药物的载体。该魔芋海绵纯度高,无残留,具有很好的生物相容性,因此这种新材料非常适合应用于对安全性较高的化妆品行业和生物技术领域。
Description
技术领域
本发明涉及可降解生物材料领域,尤其涉及一种魔芋高温发泡组合物及其制备方法。
背景技术
近年,由于魔芋应用面的拓展,作为具有发泡定型能力的材料,开展了大量的研究;其中ZL20131093091.3公开了魔芋发泡材料的基本组成方式和发泡方法和应用;魔芋发泡材料均是在水蒸气加热情况下,利用酸碱作用分解生成的二氧化碳形成气泡,经脱乙酰魔芋骨架的固定形成发泡体;但由于这种条件下发泡温度较低,需要长时间传热,这样就决定了这种发泡体难以得到大面积大体积的发泡体。
解决这一问题的方法之一就是提高发泡温度,制定新的发泡体系;目前还没有关于魔芋高温发泡体系及其发泡工艺的报道。
发明内容
本发明为解决背景技术中存在的问题,提供一种魔芋高温发泡组合物及其制备方法。
本发明的技术方案如下:
一种魔芋高温发泡组合物,其特征在于:包括如下组分:75wt%~90wt%魔芋粉、0.9wt%~11wt%发泡剂、2.5wt~4.5wt%分散剂、1wt%~8.8wt%凝固剂。
作为优选项:所述魔芋粉为市售魔芋纯化粉,要求魔芋纯化粉中魔芋葡甘聚糖含量不低于80%,。
作为优选项:所述发泡剂为发泡剂AC、发泡剂H、发泡剂OBSH、发泡剂TSH中的一种或几种。
作为优选项:所述分散剂为OP-10、Span 80、蔗糖酯中一种或几种。
作为优选项:所述凝固剂为碳酸钠。
本发明还提供一种魔芋高温发泡组合物的制备方法,步骤如下:
1)将魔芋粉、发泡剂、分散剂、凝固剂混合均匀后溶入体积浓度为0~15%(v/v)的醇溶液中,配制成发泡溶浆;
2)将上步所得发泡溶浆分散均匀,装入模具,置于高温条件下发泡10-30分钟得到发泡后的组合物;
3)将上步所得发泡后的组合物置入-20°C左右冷柜中冷冻12-48小时,取出,脱水,自然干燥或烘干,即得。
作为优选项:所述步骤1中醇溶液为甲醇或乙醇或异丙醇或乙二醇或丙三醇。
作为优选项:所述步骤1发泡溶浆中魔芋粉、发泡剂、分散剂、凝固剂混合物的浓度为6~ 16 wt%。
作为优选项:所述步骤2中发泡条件为在160-240℃温度的烘箱、烘房或油浴中发泡。
本发明方法制备的魔芋发泡体孔径可控制在1 mm左右,其表观密度0.1945 g/cm3,孔隙率达77.22%,断裂伸长率达到283.6%,具有较好的力学性能,达到了化学发泡工艺中发泡材料的标准。
本发明制备方法不需漂白洗涤等工序,经冷冻、脱水、干燥即可得到中高密度魔芋海绵。本发明的魔芋海绵可以将模具在烘箱、烤箱、油浴等高温情况下均匀发泡,可以设计成各种形状,方便成型与定型。本发明产品可以作为生物可降解支架材料或药物的载体。该魔芋海绵纯度高,无残留,具有很好的生物相容性,因此这种新材料非常适合应用于对安全性较高的化妆品行业和生物技术领域。
本发明方法的有益效果是:
1)采用高温发泡体系,实现快速传热,使发泡体制作条件可以大大优化。
2)本发明使用的原料中发泡体可以完全分解,其他材料均安全无毒且有良好的生物相容性。
3)本发明制备魔芋发泡体方法简单,设备要求也更为简单。
附图说明
图1为本发明实施例1制得的魔芋发泡物经冷冻后在室温下的照片;
图2为本发明实施例3制得的魔芋发泡物经冷冻后在室温下的照片;
图3为本发明实施例6制得的魔芋发泡物在室温下的照片;
图4为本发明实施例7制得的魔芋发泡物在室温下的照片;
图5为本发明实施例8制得的魔芋发泡物在室温下的照片;
图6为本发明实施例8制备得到的魔芋发泡物干燥后复水的显微照片。
具体实施方式
本发明的制备方法包括如下步骤:
1)将75wt%~90wt%魔芋粉、0.9wt%~11wt%发泡剂、2.5wt~4.5wt%分散剂、1wt%~8.8wt%凝固剂混合均匀,制成魔芋高温发泡组合物;
2)将组合物溶入0~15%(v/v)的醇溶液中,配制成发泡溶浆;
3)将溶浆分散均匀,装入模具。置于高温条件下发泡10-30分钟;
4)将发泡后的魔芋组合物置入-20°C左右冷柜中冷冻12-48小时。取出,脱水,自然干燥或烘干。
上述的组合物中魔芋粉为魔芋纯化粉,魔芋葡甘聚糖含量不低于80%,且其乙酰化度应在4%左右的魔芋粉。
组合物中所用的发泡剂应为发泡剂AC,发泡剂H,发泡剂OBSH,发泡剂TSH之一种或几种。所用的分散剂应为OP-10,Span 80,或蔗糖酯之一种或几种;所用的凝固剂为碳酸钠。
发泡工艺前,魔芋组合物先溶于的醇溶液应为0~15%(v/v)的甲醇、乙醇、异丙醇、乙二醇、丙三醇一种或几种混合醇水溶液;组合物与醇溶液配成的溶浆的比例为6~ 16Kg加100升醇溶液。
发泡条件为将装好组合物溶浆的模具置入160-240℃温度的条件下,发泡10~30分钟;烘箱、烤箱、烘房或油浴中均可进行。
由于该工艺发泡时间短,发泡体保持原本色泽,无须漂白处理;发泡体经冷冻,脱水干燥得到产品。
实施例1
魔芋粉60克,发泡剂AC 8克,碳酸钠0.8克,OP-10 5.5克,混合均匀,制成发泡组合物;加入1240毫升水,混合均匀,放入模具中;将模具置于240℃恒温油浴中10分钟;取出后在冰箱冷冻室中冷冻24小时,脱水,自然干燥,即得成品。
实施例 2
魔芋粉75克,发泡剂H 10克,碳酸钠1.0克,Span 80 5.0克,混合均匀,制成发泡组合物;加入569毫升15%甲醇水溶液,混合均匀,放入模具中;置入烤箱中,设置上下温度均为160℃烤制30分钟;取出后在冰箱冷冻室中冷冻48小时,脱水,自然干燥,即得成品。
实施例3
魔芋粉89克,发泡剂OBST 5.9克,碳酸钠2.4克,蔗糖酯 2.96克,混合均匀,制成发泡组合物;加入320毫升5%乙二醇水溶液,混合均匀,放入模具中。置入200℃恒温烘箱中15分钟;取出后在冰箱冷冻室中冷冻24小时,脱水,自然干燥,即得成品。
实施例4
魔芋粉87.2克,发泡剂TSH 5.81克,碳酸钠4.07克,OP-10 2.91克,混合均匀,制成发泡组合物;加入340毫升5%丙三醇水溶液,混合均匀,放入蛋糕模具中。置入220℃烤箱中发泡20分钟;取出后在冰箱冷冻室中冷冻12小时,脱水,自然干燥,即得成品。
实施例5
魔芋粉78.6克,发泡剂TSH 0.89克,发泡剂OBSH 9.57克,碳酸钠5.64克,蔗糖酯2.0克,Span80 2.24克,混合均匀,制成发泡组合物;加入1660毫升10%异丙醇水溶液,混合均匀,放入模具中;将模具置入230℃电热恒温箱中15分钟;取出后在冰箱冷冻室中冷冻36小时,脱水,自然干燥,即得成品。
实施例6
魔芋粉60克,发泡剂AC 4.0克,发泡剂TSH 4.0克,碳酸钠5.5克,蔗糖酯4.0克,混合均匀,制成发泡组合物;加入1292毫升10%甲醇水溶液,混合均匀,放入模具中。将模具置入215℃电热恒温箱中20分钟;取出后在冰箱冷冻室中冷冻24小时,脱水,自然干燥,即得成品。
实施例7
魔芋粉76克,发泡剂AC 9.28克,发泡剂OBSH 0.92克,碳酸钠8.51克,蔗糖酯4.0克,OP-10 1.08克,混合均匀,制成发泡组合物;加入1600毫升10%乙醇溶液,混合均匀,放入模具中。将模具置入220℃电热恒温箱中20分钟;取出后在冰箱冷冻室中冷冻48小时,脱水,自然干燥,即得成品。
实施例8
魔芋粉60克,发泡剂H 7.28克,发泡剂OBSH 0.72克,碳酸钠3.21克,蔗糖酯2.4克,Span80 0.58克,混合均匀,制成发泡组合物;加入1236.5毫升1.19%乙醇水溶液溶液,混合均匀,放入模具中;将模具置入220℃电热恒温箱中15分钟。取出后在冰箱冷冻室中冷冻24小时,脱水,自然干燥,即得成品。
图1为本发明实施例1制得的魔芋发泡物经冷冻后在室温下的照片;
图2为本发明实施例3制得的魔芋发泡物经冷冻后在室温下的照片;
图3为本发明实施例6制得的魔芋发泡物在室温下的照片;
图4为本发明实施例7制得的魔芋发泡物在室温下的照片;
图5为本发明实施例8制得的魔芋发泡物在室温下的照片;
图6为本发明实施例8制备得到的魔芋发泡物干燥后复水的显微照片,可以观察到发泡物内部具有均匀的孔径为1毫米的微孔结构。
应当理解的是,本说明书未详细阐述的部分均属于现有技术。
应当理解的是,上述针对较佳实施例的描述较为详细,并不能因此而认为是对本发明专利保护范围的限制,本领域的普通技术人员在本发明的启示下,在不脱离本发明权利要求所保护的范围情况下,还可以做出替换或变形,均落入本发明的保护范围之内,本发明的请求保护范围应以所附权利要求为准。
Claims (6)
1.一种魔芋高温发泡组合物,其特征在于:包括如下组分:75wt%~90wt%魔芋粉、0.9wt%~11wt%发泡剂、2.5wt~4.5wt%分散剂、1wt%~8.8wt%凝固剂;制备步骤如下:
1)将魔芋粉、发泡剂、分散剂、凝固剂混合均匀后溶入体积浓度为0~15%v/v的醇溶液中,配制成发泡溶浆;
2)将上步所得发泡溶浆分散均匀,装入模具,置于高温条件下发泡10-30分钟得到发泡后的组合物;
3)将上步所得发泡后的组合物置入-20℃左右冷柜中冷冻12-48小时,取出,脱水,自然干燥或烘干,即得;
所述步骤2中发泡条件为在160-240℃温度的烘箱、烘房或油浴中发泡;所述发泡剂为发泡剂AC、发泡剂H、发泡剂OBSH、发泡剂TSH中的一种或几种。
2.如权利要求1所述的魔芋高温发泡组合物,其特征在于:所述魔芋粉为魔芋纯化粉,魔芋葡甘聚糖含量不低于80%。
3.如权利要求1所述的魔芋高温发泡组合物,其特征在于:所述分散剂为OP-10、Span80、蔗糖酯中一种或几种。
4.如权利要求1所述的魔芋高温发泡组合物,其特征在于:所述凝固剂为碳酸钠。
5.如权利要求1所述的魔芋高温发泡组合物,其特征在于:所述步骤1中醇溶液为甲醇或乙醇或异丙醇或乙二醇或丙三醇。
6.如权利要求1所述的魔芋高温发泡组合物,其特征在于:所述步骤1发泡溶浆中魔芋粉、发泡剂、分散剂、凝固剂混合物的浓度为6~16wt%。
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