CN115003723B - 一种具有高拉伸强度的热可塑性聚氨酯、其制备配方及制造方法 - Google Patents
一种具有高拉伸强度的热可塑性聚氨酯、其制备配方及制造方法 Download PDFInfo
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- CN115003723B CN115003723B CN202080093689.0A CN202080093689A CN115003723B CN 115003723 B CN115003723 B CN 115003723B CN 202080093689 A CN202080093689 A CN 202080093689A CN 115003723 B CN115003723 B CN 115003723B
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- Prior art keywords
- diisocyanate
- thermoplastic polyurethane
- tensile strength
- diol
- high tensile
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Classifications
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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Abstract
本发明是关于一种具有高拉伸强度的热可塑性聚氨酯、其制备配方及制造方法。特别地,该具有高拉伸强度的热可塑性聚氨酯是源自一聚碳酸酯衍生物,且该具有高拉伸强度的热可塑性聚氨酯的拉伸强度大于2.5MPa。
Description
技术领域
本发明是涉及一种具有高拉伸强度的热可塑性聚氨酯、其制备配方及制造方法。特别地,该具有高拉伸强度的热可塑性聚氨酯是源自一聚碳酸酯衍生物,且该具有高拉伸强度的热可塑性聚氨酯的拉伸强度大于2.5MPa。
背景技术
热可塑性高分子具有重塑形的特性,因此比起热固性高分子更为环保之外,还赋予材料多样的应用性与加工性,因此广泛应用在各种工业上。
但是,为了维持热塑性高分子如聚氨酯的线性结构,往往牺牲掉材料性质。其次,经化学或物理混掺改质后的聚氨酯因为纯度与结构规整性不佳的缘故,更加剧线性聚氨酯的性质差的缺点。一般而言,化学改质后的聚氨酯尽管拉伸长度可以提升,但是该化学改质后的聚氨酯的拉伸强度最高只有1.5MPa左右,是属于软而弱的高分子材料特性,因此无法满足机械强度要求高的材料应用领域。
综上所述,如何设计一种具有高拉伸强度的热可塑性高分子和其制备配方,借此满足相关产业对于其需求,一直是本技术领域亟需解决克服的问题。
发明内容
鉴于上述的发明背景,为了符合产业上的要求,本发明的第一目的在于提供一种用于制备具有高拉伸强度的热可塑性聚氨酯的配方,借由独特的配方组成和使用重量比值设计,达到制成具有高拉伸强度的热可塑性聚氨酯的目的。
具体地,上述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方包含第一剂和第二剂,该第一剂包含一聚氨酯寡聚物,该第二剂包含一链延长剂;该聚氨酯寡聚物是由聚碳酸酯衍生物或双酚化合物和二异氰酸酯进行反应所制成。
其中上述的聚碳酸酯衍生物的结构如式(1)所示。
式(1)。
在一实施例,该R1是源于下述胺类化合物:脂肪族二胺、芳香族二胺或聚醚二胺,且该二异氰酸酯是独立选自以下群组之一:芳香族二异氰酸酯和脂肪族二异氰酸酯;则该链延长剂是选自下列群组之一:脂肪族二元醇、聚醚二元醇、聚酯二元醇和双酚化合物;该链延长剂和该聚氨酯寡聚物的使用重量比值是1~3,和m是1~5的整数。
具体地,上述实施例所述的胺类化合物和二异氰酸酯所制成的聚碳酸酯衍生物是不具有硅氧烷(siloxane)官能基或聚硅氧烷(polysiloxane)链段的聚碳酸酯衍生物。
在另一实施例,该R1是源于含硅氧烷基的胺类化合物;且该二异氰酸酯是脂肪族二异氰酸酯,则该链延长剂是选自下列群组之一:脂肪族二元醇和双酚化合物;该链延长剂和该聚氨酯寡聚物的使用重量比值是0.2~0.8,和m是1~5的整数。
具体地,上述另一实施例所述的含硅氧烷基的胺类化合物和二异氰酸酯所制成的聚碳酸酯衍生物是具有硅氧烷(siloxane)官能基或聚硅氧烷(polysiloxane)链段的聚碳酸酯衍生物。
上述的聚氨酯寡聚物在制备过程中还可使用惰性溶媒或反应助剂,借此改善提升该聚碳酸酯衍生物和二异氰酸酯的相容性和反应速率。
该惰性溶媒包含非质子溶剂或非质子溶剂和质子溶剂的混合溶剂。该非质子溶剂包含四氢呋喃、苯甲醚、二甲基甲酰胺、二甲基乙酰胺、N-甲基吡咯烷酮(NMP)、二甲基亚风或其组合。
该反应助剂包含辛酸亚锡(stannous octoate)或二月桂酸二丁基锡(dibutyltindilaurate)。
本发明的第二目的在于提供一种热可塑性聚氨酯,其是一高拉伸强度的热可塑性聚氨酯,是由聚氨酯寡聚物和二元醇进行反应所制成;该聚氨酯寡聚物的化学式如式(2)所示,其是由第一目的所述的聚碳酸酯衍生物或双酚化合物和二异氰酸酯所制成。
式(2)
在一实施例,当m是0,x是介于5~100之间时,表示该聚氨酯寡聚物是由双酚化合物和二异氰酸酯所制成;较佳地,该双酚化合物包含双酚A。
在一实施例,其中当该R1是源于下述胺类化合物:脂肪族二胺、芳香族二胺或聚醚二胺,且该R2是源于下述的异氰酸酯:芳香族二异氰酸酯或脂肪族二异氰酸酯;则上述的二元醇是选自下列群组之一:脂肪族二元醇、聚醚二元醇、聚酯二元醇和双酚化合物;和该二元醇和该聚氨酯寡聚物的使用重量比值是1~3;和m是1~5的整数,x介于5~100之间。
在另一实施例,当该R1是源于含硅氧烷基的胺类化合物;且该R2是源于脂肪族二异氰酸酯时,则该二元醇是选自下列群组之一:脂肪族二元醇和双酚化合物;和该二元醇和该聚氨酯寡聚物的使用重量比值是0.2~0.8;和m是1~5的整数;x介于5~100之间。
总结,上述的胺类化合物或含硅氧烷基的胺类化合物所合成的聚碳酸酯衍生物分别和特定种类的二异氰酸酯反应得到不含硅或含硅氧烷基的聚氨酯寡聚物,然后该不含硅或含硅氧烷基的聚氨酯寡聚物分别和特定种类二元醇进行链延长反应(chainextension),且该二元醇和该不含硅或含硅氧烷基聚氨酯寡聚物的使用重量比值分别是1~3和0.2~0.8,借此得到所述的高拉伸强度的热可塑性聚氨酯。
具体地,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于约2.5MPa。较佳地,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于约5.0MPa。
具体地,该高拉伸强度的热可塑性聚氨酯的重量平均分子量是10,000~400,000Da。
具体地,该高拉伸强度的热可塑性聚氨酯在氢核磁共振光谱图化学位移约1.35ppm-1.65ppm具有特征峰,或在化学位移约3.65-4.15ppm范围具有特征峰。上述的高拉伸强度的热可塑性聚氨酯还在化学位移7.50-8.00ppm具有氨基甲酸酯(carbamate)的氨基(-C=O)NH-)特征峰。
本发明的第三目的是提供一种具有高拉伸强度的热可塑性聚氨酯的制造方法,其包含使用如本发明第一目的所述的配方进行链延长反应,借此制成高拉伸强度的热可塑性聚氨酯,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于约2.5MPa。特别地,上述的制造方法能够使用废弃聚碳酸酯作为所述的聚碳酸酯衍生物的原料。因此,本发明第三目的所提供的具有高拉伸强度的热可塑性聚氨酯的制造方法还解决了废弃聚碳酸酯的处理问题。相较于传统的废弃高分子焚烧处理法,上述的方法使二氧化碳再次固定在新颖的具有高拉伸强度的热可塑性聚氨酯的结构内,其制造过程不会释放二氧化碳,延长了二氧化碳的碳循环。因此,本发明第三目的所述的具有高拉伸强度的热可塑性聚氨酯的制造方法是一兼具环境友善和具有高度原子效益的热可塑性聚氨酯制造方法。
具体地,上述的链延长反应的温度是60~100℃。
综上所述,本发明提供的一种具有高拉伸强度的热可塑性聚氨酯、其制备配方及制造方法至少具有以下创新特色和优点:(1)本发明提供的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,是属于二液型配方,其包含使用了源自于聚碳酸酯衍生物的新型聚氨酯寡聚物(第一剂)和链延长剂(第二剂),并且在特定聚氨酯寡聚物和链延长剂的种类及其使用重量配比范围的条件下制成现有习知配方难以制成的具有高拉伸强度的热可塑性聚氨酯;(2)本发明提供的具有高拉伸强度的热可塑性聚氨酯,其拉伸强度大于2.5MPa,且在特定组成下,具有超过15.0MPa拉伸强度与超过300%的拉伸长度,因此在未经加工前就能展现出优异的热可塑性聚氨酯弹性体的性质;和(3)本发明提供的具有高拉伸强度的热可塑性聚氨酯的制造方法能够使用废弃聚碳酸酯作为起始原料。所述的具有高拉伸强度的热可塑性聚氨酯的制造方法还解决了聚碳酸酯废弃物的处理问题。上述的方法更将二氧化碳再次固定在新颖的具有高拉伸强度的热可塑性聚氨酯的结构内,其制造过程不会释放二氧化碳,延长了二氧化碳的碳循环,是一兼具环境友善和具有高度原子效益的热可塑性聚氨酯制造方法。
附图说明
图1是第一实施例所述的聚氨酯寡聚物的氢核磁共振光谱图。
图2是第二实施例所述的热可塑性聚氨酯的氢核磁共振光谱图。
图3是热可塑性聚氨酯EM-G30的热示差扫描(DSC)图。
图4是热可塑性聚氨酯SI-O70的热示差扫描(DSC)图。
图5是热可塑性聚氨酯EM-E45的热示差扫描(DSC)图。
图6是热可塑性聚氨酯EM-P45的热示差扫描(DSC)图。
图7是热可塑性聚氨酯EM-G30的拉伸强度和拉伸率的坐标图。
图8是热可塑性聚氨酯SI-O70的拉伸强度和拉伸率的坐标图。
具体实施方式
有关本发明的前述及其他技术内容、特点与功效,在以下配合参考图式之一较佳实施例的详细说明中将可清楚的呈现。为了能彻底地了解本发明,将在下列的描述中提出详尽的步骤及其组成。显然地,本发明的施行并未限定于该领域的技艺者所熟习的特殊细节。另一方面,众所周知的组成或步骤并未描述于细节中,以避免造成本发明不必要的限制。本发明的较佳实施例会详细描述如下,然而除了这些详细描述之外,本发明还可以广泛地施行在其他的实施例中,且本发明的范围不受限定,其以之后的专利范围为准。
根据本发明的第一实施例,本发明提供一种用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该配方包含第一剂和第二剂,该第一剂包含一聚氨酯寡聚物,和该第二剂包含一链延长剂;该聚氨酯寡聚物是由聚碳酸酯衍生物或双酚化合物和二异氰酸酯进行反应所制成,该聚碳酸酯衍生物的结构如式(1)所示。
式(1)。
在一实施例,当该R1是源于下述胺类化合物:脂肪族二胺、芳香族二胺或聚醚二胺,且该二异氰酸酯是独立选自以下群组之一:芳香族二异氰酸酯和脂肪族二异氰酸酯;则该链延长剂是选自下列群组之一:脂肪族二元醇、聚醚二元醇、聚酯二元醇和双酚化合物;该链延长剂和该聚氨酯寡聚物的使用重量比值是1~3,和m是1~5的整数。
在另一实施例,当该R1是源于含硅氧烷基的胺类化合物;且该二异氰酸酯是脂肪族二异氰酸酯,则该链延长剂是选自下列群组之一:脂肪族二元醇和双酚化合物;该链延长剂和该聚氨酯寡聚物的使用重量比值是0.2~0.8,和m是1~5的整数。
在一实施例,该脂肪族二胺包含碳数2~40的直链状二胺或碳数2~40的分支状二胺。上述的脂肪族二胺的二胺基的相对位置可为对称或不对称。较佳地,该碳数2~40的直链状二胺是1,4-丁二胺、1,5-戊二胺或1,6-己二胺。
在一实施例,该聚醚二胺的重量平均分子量是100~5,000Da。较佳地,该聚醚二胺是指Jeffamine系列的聚醚二胺。
在一实施例,该芳香族二异氰酸酯包含二苯基甲烷二异氰酸酯(MDI)、二苯基二氟代甲烷二异氰酸酯、对苯二异氰酸酯、邻苯二异氰酸酯、间苯二异氰酸酯、2,2’-联苯二异氰酸酯、3,3’-联苯二异氰酸酯、4,4’-联苯二异氰酸酯、萘二异氰酸酯或其组合。
在一实施例,该脂肪族二异氰酸酯包含六亚甲基二异氰酸酯、异佛尔酮二异氰酸酯、4,4’-二环己基甲烷二异氰酸酯或其组合。
在一实施例,该脂肪族二元醇包含碳数2~40的直链状二元醇或碳数2~40的分支状二元醇。上述的脂肪族二元醇的二醇基的相对位置可为对称或不对称。较佳地,该碳数2~40的直链状元醇是1,4-丁二醇、1,5-戊二醇或1,6-己二醇。
在一实施例,该聚醚二元醇是选自以下群组之一:聚四氢呋喃(polytetramethylene ether glycol,PTMEG)、聚四氢呋喃-环氧乙烷(polytetramethylene ether glycol-ethylene glycol copolymer)、聚四氢呋喃-环氧丙烷(polytetramethylene ether glycol-propylene glycol copolymer)和其组合。
在一实施例,该聚酯二元醇包含聚酯二醇(polyester diol)、聚碳酸酯二元醇、聚己内酯二醇(polycaprolactone diol)或其组合。
具体地,该聚醚二胺的重量平均分子量约是100~5,000Da。
在一实施例,该含硅氧烷基的胺类化合物的分子量是150~10,000Da。较佳地,所述的硅氧烷基的结构如式(3)所示。
式(3)。
在一实施例,该聚氨酯寡聚物在氢核磁共振光谱图的化学位移约1.35ppm-1.65ppm具有特征峰,或在化学位移约3.65-4.15ppm具有特征峰。具体的,该聚氨酯寡聚物的氢核磁共振光谱图如图1所示,其中在约2.5~3.0ppm和8.0ppm分别是DMSO和DMF溶剂的特征峰。
在一实施例,该双酚化合物包含双酚A。
在一实施例,该聚氨酯寡聚物的重量平均分子量是4,000~40,000Da。
在一实施例,所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,其是应用于制备拉伸强度大于约2.5MPa的热可塑性聚氨酯。较佳地,是制备拉伸强度大于约5.0MPa的热可塑性聚氨酯。
本发明第二实施例提供一种热可塑性聚氨酯,其是一高拉伸强度的热可塑性聚氨酯,是由聚氨酯寡聚物和二元醇进行反应所制成,该聚氨酯寡聚物的化学式如式(2)所示。
式(2)。
在一实施例,当m是0;x介于5~100之间时,表示该聚氨酯寡聚物是由双酚化合物和二异氰酸酯所制成;较佳地,该双酚化合物包含双酚A。
在一实施例,当该R1是源于下述胺类化合物:脂肪族二胺、芳香族二胺或聚醚二胺,且该R2是源于下述的异氰酸酯:芳香族二异氰酸酯或脂肪族二异氰酸酯;则上述的二元醇是选自下列群组之一:脂肪族二元醇、聚醚二元醇、聚酯二元醇和双酚化合物;和该二元醇和该聚氨酯寡聚物的使用重量比值是1~3;和m是1~5的整数;x介于5~100之间。
在另一实施例,当该R1是源于含硅氧烷基的胺类化合物;且该R2是源于脂肪族二异氰酸酯时,则该二元醇是选自下列群组之一:脂肪族二元醇和双酚化合物;和该二元醇和该聚氨酯寡聚物的使用重量比值是0.2~0.8;和m是1~5的整数;x介于5~100之间。
在一实施例,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于约2.5MPa。较佳地,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于约5.0MPa,且拉伸长度比例大于300%。
在一实施例,该高拉伸强度的热可塑性聚氨酯的重量平均分子量是10,000~400,000Da。
在一实施例,该高拉伸强度的热可塑性聚氨酯在氢核磁共振光谱图化学位移约1.35ppm-1.65ppm具有特征峰,或在化学位移约3.65-4.15ppm范围具有特征峰。具体的,该高拉伸强度的热可塑性聚氨酯的氢核磁共振光谱图如图2所示,其中在约2.5~3.0ppm和8.0ppm分别是DMSO和DMF溶剂的特征峰。
在一实施例,该聚氨酯寡聚物的重量平均分子量是4,000~40,000Da。
在一实施例,该脂肪族二胺包含碳数2~40的直链状二胺或碳数2~40的分支状二胺。上述的脂肪族二胺的二胺基的相对位置可为对称或不对称。较佳地,该碳数2~40的直链状二胺是1,4-丁二胺、1,5-戊二胺或1,6-己二胺。
在一实施例,该聚醚二胺的重量平均分子量是100~5,000Da。较佳地,该聚醚二胺是指Jeffamine系列的聚醚二胺。
在一实施例,该芳香族二异氰酸酯包含二苯基甲烷二异氰酸酯(MDI)、二苯基二氟代甲烷二异氰酸酯、对苯二异氰酸酯、邻苯二异氰酸酯、间苯二异氰酸酯、2,2’-联苯二异氰酸酯、3,3’-联苯二异氰酸酯、4,4’-联苯二异氰酸酯、萘二异氰酸酯或其组合。
具体地,该脂肪族二异氰酸酯包含六亚甲基二异氰酸酯、异佛尔酮二异氰酸酯、4,4’-二环己基甲烷二异氰酸酯或其组合。
在一实施例,该脂肪族二元醇包含碳数2~40的直链状二元醇或碳数2~40的分支状二元醇。上述的脂肪族二元醇的二醇基的相对位置可为对称或不对称。较佳地,该碳数2~40的直链状元醇是1,4-丁二醇、1,5-戊二醇或1,6-己二醇。
在一实施例,该聚醚二元醇是选自以下群组之一:聚四氢呋喃(polytetramethylene ether glycol,PTMEG)、聚四氢呋喃-环氧乙烷(polytetramethylene ether glycol-ethylene glycol copolymer)、聚四氢呋喃-环氧丙烷(polytetramethylene ether glycol-propylene glycol copolymer)和其组合。
在一实施例,该聚酯二元醇包含聚酯二醇(polyester diol)、聚碳酸酯二元醇、聚己内酯二醇(polycaprolactone diol)或其组合。
具体地,该聚醚二胺的重量平均分子量约是100~5,000Da。
在一实施例,该含硅氧烷基的胺类化合物的分子量是150~10,000Da。较佳地,该含硅氧烷基的结构如式(3)所示。
式(3)。
本发明第三实施例提供一种具有高拉伸强度的热可塑性聚氨酯的制造方法,其步骤包含使用如第一实施例所述的配方进行链延长反应,借此制成一高拉伸强度的热可塑性聚氨酯,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于约2.5MPa。
在一实施例,该链延长反应的温度介于60~100℃之间。
在一实施例,该高拉伸强度的热可塑性聚氨酯在氢核磁共振光谱图化学位移约1.35ppm-1.65ppm范围具有特征峰,或在约3.65-4.15ppm范围具有特征峰。
在一实施例,该高拉伸强度的热可塑性聚氨酯的重量平均分子量是10,000~400,000Da。
在一代表实施例,使用以二苯基甲烷二异氰酸酯(MDI)和聚碳酸酯衍生物制成的聚氨酯寡聚物和聚醚二元醇(PTMEG2000)或聚己内酯二醇(PCL2000)合成本发明所述的具有高拉伸强度的热可塑性聚氨酯,其结构如式(4)所示,其中R1是源自1,6-己二胺,R2是源自二苯基甲烷二异氰酸酯(MDI),和R3是源自聚醚二元醇(PTMEG2000)或聚己内酯二醇(PCL2000)。
式(4),其中m是1~5的整数,x介于5~100之间和;y介于1至40之间。
以下范例和实验例是依据上述的发明内容和实施例所述的内容所进行的实验,并据此做为本发明的详细说明。
范例一:本发明所述的聚碳酸酯衍生物的通用制备步骤
提供一包含聚碳酸酯、二胺化合物或含硅基二胺化合物和一溶剂的混合物;该混合物还可包含碳酸二苯酯或其组合物。适当的容剂包括异丙醚、苯甲醚、苯乙醚、苯丙醚、苯丁醚、邻甲基苯甲醚、间甲基苯甲醚、对甲基苯甲醚、苄基乙基醚、二苯醚、二苄醚、四氢呋喃、二氢吡喃、四氢吡喃、2-甲基四氢吡喃、苯、甲苯、二甲苯、乙苯、二乙苯或环己苯。然后在50~200℃混和反应上述的聚碳酸酯类和该二胺或含硅基二胺化合物,经过移除蒸馏移除溶剂和副产物或再以管柱层析法纯化移除副产物后,得到所述的聚碳酸酯衍生物。具体的实验例配方、聚碳酸酯和二胺的使用重量如表一所示。
表一
实验例 | 聚碳酸酯/克 | 二胺(Ew:g/eq)/克 | 聚碳酸酯衍生物名称 |
1 | 3 | 1,6-己二胺(Ew=58.1)/0.69 | 聚碳酸酯衍生物A |
2 | 3 | Jeffamine EDR-148(Ew=74.1)/0.87 | 聚碳酸酯衍生物E |
3 | 3 | 含硅氧烷基二胺(Ew=800)/9.63 | 聚碳酸酯衍生物S |
范例二:本发明所述的聚氨酯寡聚物的通用制备步骤
所述的聚氨酯寡聚物的是利用高分子聚合反应制备而成。具体地,将各种的二异氰酸酯,如二苯基甲烷二异氰酸酯(MDI)、异佛尔酮二异氰酸酯(IPDI)或1,6-己二异氰酸酯(HDI);和上述的聚碳酸酯衍生物如聚碳酸酯衍生物A、E或S在60-100℃之间进行缩合聚合反应,反应过程可加入溶剂如二甲基甲酰胺、N-甲基吡咯烷酮、四氢呋喃、二甲基亚砜或苯甲醚帮助反应进行,完成反应时可在FT-IR光谱图1750±50cm-1位置看到胺基甲酸酯官能基的特征峰。具体的实验例配方和使用重量如表二所示。
表二
实验例 | 聚碳酸酯衍生物/克 | 二异氰酸酯/克 | 聚氨酯寡聚物名称 |
1 | 聚碳酸酯衍生物A/3.69 | 二苯基甲烷二异氰酸酯(MDI)/14.76 | AM-15 |
2 | 聚碳酸酯衍生物A/3.69 | 二苯基甲烷二异氰酸酯(MDI)/3.78 | AM-30 |
3 | 聚碳酸酯衍生物A/3.69 | 二苯基甲烷二异氰酸酯(MDI)/2.53 | AM-45 |
4 | 聚碳酸酯衍生物A/3.69 | 二苯基甲烷二异氰酸酯(MDI)/2.04 | AM-60 |
5 | 聚碳酸酯衍生物E/3.87 | 二苯基甲烷二异氰酸酯(MDI)/15.24 | EM-15 |
6 | 聚碳酸酯衍生物E/3.87 | 二苯基甲烷二异氰酸酯(MDI)/3.87 | EM-30 |
7 | 聚碳酸酯衍生物E/3.87 | 二苯基甲烷二异氰酸酯(MDI)/2.56 | EM-45 |
8 | 聚碳酸酯衍生物E/3.87 | 二苯基甲烷二异氰酸酯(MDI)/2.06 | EM-60 |
9 | 聚碳酸酯衍生物S/12.63 | 异佛尔酮二异氰酸酯(IPDI)/4.36 | SI-30 |
10 | 聚碳酸酯衍生物S/12.63 | 异佛尔酮二异氰酸酯(IPDI)/9.51 | SI-50 |
11 | 聚碳酸酯衍生物S/12.63 | 异佛尔酮二异氰酸酯(IPDI)/21.52 | SI-70 |
12 | 聚碳酸酯衍生物S/12.63 | 二苯基甲烷二异氰酸酯(MDI)/4.36 | SM-30 |
13 | 聚碳酸酯衍生物S/12.63 | 二苯基甲烷二异氰酸酯(MDI)/9.51 | SM-50 |
14 | 聚碳酸酯衍生物S/12.63 | 二苯基甲烷二异氰酸酯(MDI)/21.52 | SM-70 |
上述表二所列的聚氨酯寡聚物都在氢核磁共振光谱图的化学位移约1.35ppm-1.65ppm具有特征峰,或在化学位移约3.65-4.15ppm具有特征峰。且在化学位移约7.50-8.00ppm具有氨基甲酸酯(carbamate)的氨基(-C=O)NH-)特征峰。
范例三:本发明所述的热可塑性聚氨酯的通用制备步骤
上述的聚氨酯寡聚物和各种二元醇链延长剂加热进行链延长反应,得到各种不同的热可塑性聚氨酯,具体的实验范例所使用的配方、使用重量比值和所得到的热可塑性聚氨酯的性质数据分别如表三和表四所示。
表三
实验例 | 聚氨酯寡聚物 | 二元醇/克 | 二元醇/聚氨酯寡聚物的重量比值 | 热可塑性聚氨酯(名称) |
控制组 | X | X | - | EM-100 |
1 | AM-15 | PTMEG2000/100.53 | 5.45 | AM-G15 |
2 | AM-30 | PTMEG2000/17.01 | 2.28 | AM-G30 |
3 | AM-45 | PTMEG2000/7.45 | 1.20 | AM-G45 |
4 | AM-60 | PTMEG2000/3.75 | 0.66 | AM-G60 |
5 | EM-15 | PTMEG2000/104.20 | 5.45 | EM-G15 |
6 | EM-30 | PTMEG2000/17.63 | 2.28 | EM-G30 |
7 | EM-45 | PTMEG2000/7.72 | 1.20 | EM-G45 |
8 | EM-60 | PTMEG2000/3.89 | 0.66 | EM-G60 |
9 | EM-15 | PCL2000/104.20 | 5.45 | EM-L15 |
10 | EM-30 | PCL2000/17.63 | 2.28 | EM-L30 |
11 | EM-45 | PCL2000/7.72 | 1.20 | EM-L45 |
12 | EM-60 | PCL2000/3.89 | 0.66 | EM-L60 |
13 | EM-30 | 聚乙二醇PEG/17.63 | 2.28 | EM-E30 |
14 | EM-45 | 聚乙二醇PEG/7.72 | 1.20 | EM-E45 |
15 | EM-30 | 聚丙二醇PPG/17.63 | 2.28 | EM-P30 |
16 | EM-45 | 聚丙二醇PPG/7.72 | 1.20 | EM-P45 |
17 | SI-30 | 1,6-己二醇/1.26 | 0.07 | SI-O30 |
18 | SI-50 | 1,6-己二醇/3.57 | 0.16 | SI-O50 |
19 | SI-70 | 1,6-己二醇/8.97 | 0.26 | SI-O70 |
20 | SM-30 | 1,6-己二醇/1.26 | 0.07 | SM-O30 |
21 | SM-50 | 1,6-己二醇/3.57 | 0.16 | SM-O50 |
22 | SM-70 | 1,6-己二醇/8.97 | 0.26 | SM-O70 |
上述表三是合成热可塑性聚氨酯的配方表,其中控制组EM-100是百分之百的前述的聚碳酸酯衍生物E和二苯基甲烷二异氰酸酯(MDI)所合成的样品;所使用的聚氨酯寡聚物的配方则如表二所示;本实验分别使用不同种类和重量比值的二元醇和聚氨酯寡聚物进行热可塑性聚氨酯的合成和其性质测量,借此筛选合适的反应配方,以达到制成具有高拉伸强度等优异性质的热可塑性聚氨酯的目的。制成的热可塑性聚氨酯的各项性质比较如表四所示。
表四
实验例 | 热可塑性聚氨酯 | 拉伸强度a(MPa) | 拉伸率b(%) | 膜特性c | PCd(wt.%) | Tge(℃) |
控制组 | EM-100 | n.a. | n.a. | 无伸缩弹性(X) | 59.2 | 4 |
1 | AM-G15 | 0.7 | 118 | 伸缩弹性差(N) | 2.5 | n.a. |
2 | AM-G30 | 2.7 | 1090 | 伸缩弹性佳(O) | 12.2 | n.a. |
3 | AM-G45 | 9.0 | 650 | 伸缩弹性佳(O) | 22.0 | n.a. |
4 | AM-G60 | 1.7 | 127 | 伸缩弹性差(N) | 31.6 | n.a. |
5 | EM-G15 | 0.6 | 226 | 伸缩弹性差(N) | 2.43 | n.a. |
6 | EM-G30 | 13.2 | 1205 | 伸缩弹性佳(O) | 11.8 | n.a |
7 | EM-G45 | 15.2 | 996 | 伸缩弹性佳(O) | 21.2 | -59 |
8 | EM-G60 | 3.7 | 603 | 伸缩弹性差(N) | 30.5 | -52 |
9 | EM-L15 | 2.8 | 5 | 伸缩弹性差(N) | 2.43 | n.a |
10 | EM-L30 | 2.9 | 45 | 伸缩弹性佳(O) | 11.8 | -39 |
11 | EM-L45 | 4.3 | 555 | 伸缩弹性佳(O) | 21.2 | -31 |
12 | EM-L60 | 3.1 | 229 | 伸缩弹性差(N) | 30.5 | -20 |
13 | EM-E30 | n.a. | n.a. | 无伸缩弹性(X) | 11.8 | n.a |
14 | EM-E45 | n.a. | n.a. | 无伸缩弹性(X) | 21.2 | n.a |
15 | EM-P30 | n.a. | n.a. | 无伸缩弹性(X) | 11.8 | n.a |
16 | EM-P45 | n.a. | n.a. | 无伸缩弹性(X) | 21.2 | n.a |
17 | SI-O30 | n.a. | n.a. | 无伸缩弹性(X) | 16.4 | 3.8 |
18 | SI-O50 | n.a. | n.a. | 无伸缩弹性(X) | 11.7 | 3.1 |
19 | SI-O70 | 54 | 11 | 伸缩弹性佳(O) | 7.0 | 3.3 |
20 | SM-O30 | n.a. | n.a. | 无伸缩弹性(X) | 16.4 | n.a |
21 | SM-O50 | n.a. | n.a. | 无伸缩弹性(X) | 11.7 | n.a |
22 | SM-O70 | n.a. | n.a. | 无伸缩弹性(X) | 7.0 | 3.8 |
a:拉伸强度(stress)是借由万能拉力机测量;
b:拉伸率(strain):是借由万能拉力机测量;
c:膜特性是借由成膜后的巨观状态;
d:PC(wt.%)表示该热可塑性聚氨酯所包含的理论聚碳酸酯含量(碳酸酯(g)/热可塑性聚氨酯(g));
e:Tg是玻璃转移温度;和
n.a.表示该数值低于量测的量测下限值,无法取得数值。
根据表四的热可塑性聚氨酯性质的实验数值进行分析,明确得知下述的热可塑性聚氨酯同时具有大于2.5MPa的拉伸强度和良好的膜伸缩弹性:AM-G30、AM-G45、EM-G30、EM-G45、EM-L30、EM-L45和SI-O70。
依据表三的合成热可塑性聚氨酯的配方表,并比对表四的实验数据,显示本发明所述的源于聚碳酸酯衍生物的聚氨酯寡聚物无法和聚乙二醇或聚丙二醇合成得到具有拉伸强度的热可塑性聚氨酯,据此得知本发明所提供的用于制备具有高拉伸强度的热可塑性聚氨酯的配方中的链延长剂(二元醇)是有其配伍专一性。
明显地,表二所述的源于含硅氧烷基二胺的聚碳酸酯衍生物S和芳香族二异氰酸酯(MDI)所合成的聚氨酯寡聚物(SM)无法和脂肪族二元醇(1,6-己二醇)合成得到热可塑性聚氨酯。但是该聚碳酸酯衍生物S和脂肪族二异氰酸酯(IPDI)所合成的聚氨酯寡聚物(SI)在本发明设计的二元醇/聚氨酯寡聚物的重量比值范围内能合成得到具有拉伸强度高达54MPa的热可塑性聚氨酯(SI-O70)。据此,一含有硅氧烷基的聚氨酯寡聚物必须是不存在芳香环结构,方能和链延长剂(二元醇)反应制造得到本发明所述的具有高拉伸强度的热可塑性聚氨酯。换言之,一具有高拉伸强度的含硅氧烷基的热可塑性聚氨酯是源于脂肪族二异氰酸酯,特别是异佛尔酮二异氰酸酯(IPDI)。
上述的热可塑性聚氨酯EM-G30和SI-O70,分别使用热示差扫描仪进行热分析,其热示差扫描图谱(DSC)分别如图3和图4所示。另外,热可塑性聚氨酯EM-E45和EM-P45的热示差扫描图谱(DSC)分别如图5和图6所示。明显地,当使用聚乙二醇(E)或聚丙二醇(P)作为链延长剂时,DSC图谱显示其在-33℃或-20℃就观察到吸热现象,此表示该热可塑性聚氨酯EM-E45和EM-P45在室温下因为吸热效应导致其内部高分子链段结构松软无法具有拉伸强度。据此,热分析数据具体证实聚乙二醇或聚丙二醇不适用做本发明所述的配方中的链延长剂。
热可塑聚氨酯的拉伸强度测试
上述的热可塑性聚氨酯EM-G30、SI-O70、EM-E45和EM-P45使用万能拉力机(厂牌及型号:MTS Landmark 370.02Test System)进行拉伸强度和拉伸率的测试。测试条件是依据ASTM D638标准制备样品大小,测试样品使用的拉伸速度是100mm/min,所得到的上述的热可塑性聚氨酯EM-G30和SI-O70测试结果分别如图7和图8所示,其中EM-G30的拉伸强度超过5.0MPa,达到约13.0MPa,且其拉伸率更高达约1200%;SI-O70的拉伸强度更高达约54MPa。但是EM-E45和EM-P45在进行测量时,其测试样品于实验过程中断裂,造成其拉伸强度无法量测。据此证明聚乙二醇或聚丙二醇系列的二元醇不适用作为本发明配方的链延长剂。
以上虽以特定实验例说明本发明,但并不因此限定本发明的范围,只要不脱离本发明的要旨,熟悉本技艺者了解在不脱离本发明的意图及范围下可进行各种变形或变更。此外,摘要部分和标题仅是用来辅助专利文件搜寻之用,并非用来限制本发明的权利范围。
Claims (26)
1.一种用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该配方包含第一剂和第二剂,该第一剂包含一聚氨酯寡聚物,和该第二剂包含一链延长剂;该聚氨酯寡聚物是由聚碳酸酯衍生物和二异氰酸酯进行反应所制成,该聚碳酸酯衍生物的结构如式(1)所示:
其中,当R1是源于下述胺类化合物:脂肪族二胺、芳香族二胺或聚醚二胺,且该二异氰酸酯是独立选自以下群组之一:芳香族二异氰酸酯和脂肪族二异氰酸酯;则该链延长剂是选自下列群组之一:脂肪族二元醇、聚醚二元醇、聚酯二元醇,该聚醚二元醇是选自以下群组之一:聚四氢呋喃、聚四氢呋喃-环氧乙烷、聚四氢呋喃-环氧丙烷和其组合;该链延长剂和该聚氨酯寡聚物的使用重量比值是1~3,和m是1~5的整数;或
当R1是源于含硅氧烷基的胺类化合物;且该二异氰酸酯是脂肪族二异氰酸酯,则该链延长剂是选自下列群组之一:脂肪族二元醇;该链延长剂和该聚氨酯寡聚物的使用重量比值是0.2~0.8,和m是1~5的整数。
2.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该脂肪族二胺包含碳数2~40的直链状二胺或碳数3~40的分支状二胺。
3.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该芳香族二异氰酸酯包含二苯基甲烷二异氰酸酯MDI、二苯基二氟代甲烷二异氰酸酯、对苯二异氰酸酯、邻苯二异氰酸酯、间苯二异氰酸酯、2,2’-联苯二异氰酸酯、3,3’-联苯二异氰酸酯、4,4’-联苯二异氰酸酯、萘二异氰酸酯或其组合。
4.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该脂肪族二异氰酸酯包含六亚甲基二异氰酸酯、异佛尔酮二异氰酸酯IPDI、4,4’-二环己基甲烷二异氰酸酯或其组合。
5.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该脂肪族二元醇包含碳数2~40的直链状二元醇或碳数3~40的分支状二元醇。
6.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该聚酯二元醇包含聚碳酸酯二元醇、聚己内酯二醇或其组合。
7.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该聚醚二胺的重量平均分子量是100~5,000Da。
8.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该含硅氧烷基的胺类化合物的分子量是150~10,000Da。
9.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该聚氨酯寡聚物在氢核磁共振光谱图的化学位移1.35ppm-1.65ppm具有特征峰,或在化学位移3.65-4.15ppm具有特征峰。
10.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,该聚氨酯寡聚物的重量平均分子量是4,000~40,000Da。
11.根据权利要求1所述的用于制备具有高拉伸强度的热可塑性聚氨酯的配方,其是应用于制备拉伸强度大于2.5MPa的热可塑性聚氨酯。
12.一种热可塑性聚氨酯,其是一拉伸强度大于2.5MPa的热可塑性聚氨酯,和该拉伸强度大于2.5MPa的热可塑性聚氨酯是由一聚氨酯寡聚物和一二元醇进行反应所制成;该聚氨酯寡聚物的化学式如式(2)所示:
其中,当R1是源于下述胺类化合物:脂肪族二胺、芳香族二胺或聚醚二胺,且R2是源于下述的异氰酸酯:芳香族二异氰酸酯或脂肪族二异氰酸酯;则上述的二元醇是选自下列群组之一:脂肪族二元醇、聚醚二元醇、聚酯二元醇,该聚醚二元醇是选自以下群组之一:聚四氢呋喃、聚四氢呋喃-环氧乙烷、聚四氢呋喃-环氧丙烷和其组合;和该二元醇和该聚氨酯寡聚物的使用重量比值是1~3;和m是1~5的整数;x介于5~100之间;或
当R1是源于含硅氧烷基的胺类化合物;且R2是源于脂肪族二异氰酸酯时,则该二元醇是选自下列群组之一:脂肪族二元醇;和该二元醇和该聚氨酯寡聚物的使用重量比值是0.2~0.8;和m是1~5的整数;x介于5~100之间。
13.根据权利要求12所述的热可塑性聚氨酯,该热可塑性聚氨酯的重量平均分子量是10,000~400,000Da。
14.根据权利要求12所述的热可塑性聚氨酯,该热可塑性聚氨酯在氢核磁共振光谱图化学位移1.35ppm-1.65ppm具有特征峰,或在化学位移3.65-4.15ppm范围具有特征峰。
15.根据权利要求12所述的热可塑性聚氨酯,该聚氨酯寡聚物的重量平均分子量是4,000~40,000Da。
16.根据权利要求12所述的热可塑性聚氨酯,该脂肪族二胺包含碳数2~40的直链状二胺或碳数3~40的分支状二胺。
17.根据权利要求12所述的热可塑性聚氨酯,该芳香族二异氰酸酯包含二苯基甲烷二异氰酸酯MDI、二苯基二氟代甲烷二异氰酸酯、对苯二异氰酸酯、邻苯二异氰酸酯、间苯二异氰酸酯、2,2’-联苯二异氰酸酯、3,3’-联苯二异氰酸酯、4,4’-联苯二异氰酸酯、萘二异氰酸酯或其组合。
18.根据权利要求12所述的热可塑性聚氨酯,该脂肪族二异氰酸酯包含六亚甲基二异氰酸酯、异佛尔酮二异氰酸酯IPDI、4,4’-二环己基甲烷二异氰酸酯或其组合。
19.根据权利要求12所述的热可塑性聚氨酯,该脂肪族二元醇包含碳数2~40的直链状二元醇或碳数3~40的分支状二元醇。
20.根据权利要求12所述的热可塑性聚氨酯,该聚酯二元醇包含聚碳酸酯二元醇、聚己内酯二醇或其组合。
21.根据权利要求12所述的热可塑性聚氨酯,该聚醚二胺的重量平均分子量是100~5,000Da。
22.根据权利要求12所述的热可塑性聚氨酯,该含硅氧烷基的胺类化合物的分子量是150~10,000Da。
23.一种具有高拉伸强度的热可塑性聚氨酯的制备方法,其步骤包含使用如权利要求1所述的配方进行链延长反应,借此制成一高拉伸强度的热可塑性聚氨酯,该高拉伸强度的热可塑性聚氨酯的拉伸强度大于2.5MPa。
24.根据权利要求23所述的制备方法,该链延长反应的温度是介于60~100℃。
25.根据权利要求23所述的制备方法,该高拉伸强度的热可塑性聚氨酯在氢核磁共振光谱图化学位移1.35ppm-1.65ppm范围具有特征峰,或在3.65-4.15ppm范围具有特征峰。
26.根据权利要求23所述的制备方法,该高拉伸强度的热可塑性聚氨酯的重量平均分子量是10,000~400,000Da。
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