CN107385629B - 具有改善的疲劳强度的柔性次级气体隔板及其制造方法 - Google Patents
具有改善的疲劳强度的柔性次级气体隔板及其制造方法 Download PDFInfo
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- CN107385629B CN107385629B CN201610506191.8A CN201610506191A CN107385629B CN 107385629 B CN107385629 B CN 107385629B CN 201610506191 A CN201610506191 A CN 201610506191A CN 107385629 B CN107385629 B CN 107385629B
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- yarn
- fibre
- reinforcing textile
- weft
- warp
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Classifications
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Abstract
本发明涉及包含加固织物的液化气储罐用柔性次级气体隔板,所述加固织物由选自玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的两种以上纤维纱织成。另外,在本发明的液化气储罐用柔性次级气体隔板中,所述加固织物被编织为使纬线和/或经线中包含混杂纤维纱,其通过将选自玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的两种以上纤维纱的单纱或加捻纱进行2‑合股制纱而制成。通过使用将玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的两种以上混合编织制成的加固织物,本发明的次级气体隔板具有即使在低温条件下也显著改善的重复疲劳抗性,其根本上具有解决与施加在次级气体隔板上的重复载荷随LNGC泡沫厚度增加而增大的相关问题的效果。
Description
技术领域
本发明涉及液化气储罐用柔性次级气体隔板,其特征在于,通过使用将玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的两种以上混合编织制成的加固织物(stiffenerfabric),在低温条件下的重复疲劳抗性有显著改善。更具体而言,本发明涉及通过替换为加固织物而具有显著改善的抗疲劳性的液化气储罐用柔性次级气体隔板,所述加固织物通过将混杂纤维纱施用至织物的一部分或整体而织成,所述织物单独织成或通过将从玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中选出的两种以上纤维纱的单纱或加捻纱捻曲而织成,或者其通过将玻璃纤维、碳纤维、芳族聚酰胺纤维或合成纤维的单纱或加捻纱的两种以上捻曲而制得。
背景技术
本发明涉及次级气体隔板,其通过用于液化天然气(LNG)及其它气体储罐而防止气体泄露。诸如LNG等气体在从气体储罐中泄露出、特别是在LNG液化温度小于或等于163℃时,具有爆炸的风险。常规LNG储罐由主要气体隔板、隔热材料和次级气体隔板组成,以便在低于163℃的不利条件下以更稳定的方式防止气体的泄露。由于次级隔板必须具有在主隔板损坏的情况下辅助防止气体泄露的特点,故其是用于LNG储罐的重要材料之一。
本发明的背景技术是KR 10-2013-0050837(专利文献1)。上述背景技术提供了液化气储罐用柔性次级气体隔板,其中通过使用两侧都经过了物理和化学处理的铝箔来改善粘合强度并增强机械特性,从而改善柔性和粘合强度;并且其中通过在由玻璃纤维制成的加固织物上使用氨基甲酸酯弹性体作为粘合片而确保热稳定性并改善拉伸强度。
近来,LNG货船得到进一步扩增,并且随着LNGC泡沫的厚度变得更厚以改善BOR性能(其是航行期间LNG的损失率),取决于施加在次级气体隔板上的位移的重复载荷也增加,并且在常规技术中,对于解决与低温条件下施加在次级气体隔板上的重复载荷有关的问题存在局限。因此,对于改善次级气体隔板的抗疲劳性存在需求。
发明内容
技术问题
为了解决上述问题而做出本发明,并且本发明旨在提供一种液化气储罐用柔性次级气体隔板,其特征在于,通过改变和施用加固织物的纤维,使低温疲劳载荷条件下的抗疲劳性显著改善。
技术方案
为了解决上述问题,本发明提供了一种在低温条件下重复疲劳抗性显著改善的液化气储罐用柔性次级气体隔板,其特征在于,包含由选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的两种以上纤维纱织成的加固织物。
构成本发明的次级气体隔板的加固织物包括以下两种情况:形成纬线和经线的各纤维纱为不同类型(异质),和形成纬线和经线的各纤维纱为相同类型,并且所述加固织物的特征在于其由不同编织密度和混合比的多种混合物织成。
另外,构成本发明的次级气体隔板的加固织物是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的两种以上纤维纱,并且选自上组的各纤维纱的形式的特征在于,选自由单纱、加捻纱和2-合股纱(2-ply yarn)组成的组。
另外,本发明的次级气体隔板包括加固织物,其被编织使得纬线或经线中超过一个位置包含下列中至少一项:选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的两种单纱;或者通过将单纱或加捻纱2-合股制纱而制成的混杂纤维纱。此处,包括以下情况:所述织物的纬线和经线都是所述混杂纤维纱;或者所述织物的纬线是所述混杂纤维纱,而所述织物的经线可以是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的单纱、加捻纱或2-合股纱中的一种或多种;或者所述织物的纬线是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的单纱、加捻纱或2-合股纱,而所述织物的经线是所述混杂纤维纱。
另外,本发明的次级气体隔板的特征在于,包含通过对形成所述加固织物的纤维纱的表面选择选自由化学表面处理和物理表面处理组成的组中的至少一种并进行处理而织成的加固织物。
有益效果
本发明提供了一种液化气储罐用柔性次级气体隔板,其特征在于,通过将选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的两种以上混合编织制成的加固织物而使重复疲劳抗性显著改善,并且由此展现出在低温疲劳载荷条件下抗疲劳性高度改善的非常有用的效果。
附图说明
本说明书下文的附图旨在图示实例,并且具有与本发明的详细描述一起帮助进一步理解本发明技术概念的作用。因此,本发明不应被解读为仅限于附图中列出的那些。
图1是本发明通过施用玻璃纤维和芳族聚酰胺纤维织成的加固织物的结构图。
图2是通过施用本发明的加固织物制造的液化气储罐用柔性次级气体隔板的结构图。
图3是本发明的加固层的示意性制造工艺图。
附图标记描述
100:铝箔
200:加固层
210:氨基甲酸酯粘合片
220:加固织物
221:芳族聚酰胺纤维
222:玻璃纤维
310a,310b:进料辊
320:加热辊
330:压力辊
350:卷绕辊
具体实施方式
下面,参照已在附图中呈现的实例详细描述本发明。然而,本文提出的实例是出于清楚理解本发明的示例性目的,并且本发明不限于此。
如图2所示,液化气储罐用柔性次级气体隔板具有一体化成型的分层衬底和所述铝箔(100),该分层衬底通过使氨基甲酸酯粘合片(210)和加固织物(220)附接在铝箔(100)两侧上而得,根据本发明的实例,所述液化气储罐用柔性次级气体隔板的特征在于在低温疲劳载荷条件下的抗疲劳性显著改善。
本文使用的所述铝箔(100)产品具有50μm~100μm的厚度,其对于具有柔性而言是最佳厚度,并且合意的是使用10系列铝箔,其是纯度超过99.2%的柔性产品。当铝箔(100)的厚度超过100μm时,由于无法恰当地表达柔性,故物理性质降低,而当厚度小于50μm时,则存在诸如剥离强度降低和破裂等问题。出于增强气体渗透气密性的目的而使用铝箔,并且铝的组成大于或等于99.2%表明铝箔的纯度,复合物的其余部分为硅、铁、铜和镁等。
在用铬酸盐、等离子体和电晕中的任一项在两侧上进行处理之后,所述铝箔(100)可进行聚酰胺/硅烷化合物的表面处理。用铬酸盐、等离子体和电晕中的任一项在铝箔(100)两侧上进行处理的目的是改善氨基甲酸酯粘合片和铝箔(100)之间的物理和化学粘合。
在所述铝箔(100)的两侧上,加固层(200)由附接在加固织物(220)一侧表面上的氨基甲酸酯粘合板(210)组成,并因此一体化形成。
所述加固层(200)被配置为使得由氨基甲酸酯粘合片(210)组成的一侧附接至铝箔(100)。通过用热塑性聚氨酯弹性体将熔化温度设定为160℃以上,而将氨基甲酸酯粘合片(210)制成为能够保证次级气体隔板产品的热稳定性。通过使用在橡胶硬度测试中超过90A的那些,可将所述氨基甲酸酯粘合片设定为不仅具有耐热性,而且还具有改善的拉伸强度,并且合意的是厚度为50μm~200μm。
本发明次级气体隔板的制造方法的优选实例包括以下阶段:制备用于编织加固织物的纤维纱;对所选择的纤维纱表面进行物理和化学处理;用所述经表面处理的纤维纱编织加固织物;对铝箔进行表面处理以便改善铝箔和氨基甲酸酯粘合片之间的粘合;通过使所述制备的加固织物和氨基甲酸酯粘合片经过150℃~180℃的加热辊和压力辊而进行一体化成型的加固成型过程;成片过程,其中一体化成型有氨基甲酸酯粘合片的加固层层压在铝箔的两侧上,并且该层压体利用旋转固化(rotocure)成型机进行连续成型;对片状层压体进行热处理和后固化以实现稳定化的稳定化过程。
下文中,将详细描述制备加固织物的过程。
首先,为了编织加固织物,必须选择纤维纱以施用于经线和纬线。
本发明的次级气体隔板的特征在于包含加固织物,该加固织物由选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的两种以上纤维纱织成。这包括形成加固层纬线和经线的各纤维纱为不同类型(异质)的情况,以及形成加固层纬线和经线的各纤维纱为相同类型(同质)的情况。此外,本发明的加固织物的特征在于其由不同编织密度和混合比的纤维纱的多种混合物织成。
在此,形成加固织物纬线和经线的各纤维纱为不同类型的情况可例举出以下情况:①首先,选择并编织芳族聚酰胺纤维纱和玻璃纤维纱这2类纤维纱,使得芳族聚酰胺纤维纱施用在纬线中,而玻璃纤维纱施用在经线中;②选择并编织芳族聚酰胺纤维纱、玻璃纤维纱和合成纤维纱这3类纤维纱,使得芳族聚酰胺纤维纱和玻璃纤维纱以多种混合比施用在纬线中,而合成纤维纱和玻璃纤维纱以多种混合比施用在经线中;③选择并编织玻璃纤维纱、碳纤维纱和合成纤维纱这3类纤维纱,使得玻璃纤维纱施用在纬线中,而碳纤维纱和合成纤维纱以多种混合比施用在经线中。
另一方面,形成加固层纬线和经线的各纤维纱为相同类型的情况显示了以下示例情况:①选择并编织作为一类纤维纱的芳族聚酰胺纤维纱和玻璃纤维纱这2类纤维纱,使得这些芳族聚酰胺纤维纱和玻璃纤维纱以多种混合比施用在纬线和经线中;②选择并编织作为一类纤维纱的芳族聚酰胺纤维纱、碳纤维纱和玻璃纤维纱这3类纤维纱,使得这些纤维纱以多种混合比施用在纬线和经线中。
在本发明中,形成加固织物纬线和经线的各种纤维纱为选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的超过两种纤维纱,并且从上组中选出的各纤维纱的形式包括单纱或加捻纱或2-合股纱的所有情况。
另外,本发明的次级气体隔板包括加固织物,其被编织使得纬线或经线中超过一个位置包含下列中至少一项:选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的两种单纱;或者通过将单纱或加捻纱2-合股制纱而制成的混杂纤维纱。此处,包括以下情况:所述织物的纬线和经线都是所述混杂纤维纱;或者所述织物的纬线是所述混杂纤维纱,而所述织物的经线是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的单纱、加捻纱或2-合股纱中的一种或多种;或者所述织物的纬线是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的单纱、加捻纱或2-合股纱,而所述织物的经线是所述混杂纤维纱。
虽然对于所述玻璃纤维纱的类型没有特别限制,但E玻璃和S玻璃是合乎期望的。另外,对玻璃纤维纱的细度没有特别限制,合意的是DE 37 1/0或1/2、G37 1/0或1/2、DE 751/0或1/2、E 75 1/0或1/2、G 75 1/0或1/2,其中G 75 1/2是最优选的。此处,DE、E、G是表示细丝直径的缩写,而后面的数字是每纤维长度磅的百分数,75表示7500yds/lb。基于单纱和合股线,1/0表明由选自上述纤维组的一种加捻纱组成的纤维,而1/2表明经历选自上述纤维组的一种或两种单纱的2-合股制纱过程的纤维纱。
虽然对所述芳族聚酰胺和合成纤维纱的细度没有特别限制,但300旦尼尔~1500旦尼尔是合乎期望的。
所述2-合股纱的捻数分别为3.5TPI~4.5TPI(捻度/英寸)的缆/股捻度(cable/ply twist)。此时,当低于3.5TPI时,加固织物的抗疲劳性可能降低,而当超过4.5TPI时,韧性降低过于急剧使得不再适合于加固织物。
其后,为了改善所选择的纤维纱的粘合强度,在纤维纱表面上进行化学和物理处理工序。
所述化学工序可以是选自由下述工序组成的组中的至少一种方法:纤维纱在有机溶剂中的洗涤工序;或利用硅烷化合物的表面处理工序;或利用有机树脂的涂布工序。
所述有机溶剂的特征在于强挥发性,其为可溶解任何所述材料的液态的有机化学物质。有机溶剂的类型可大致分为以下组:烃、卤代烃、醇、醛、酯、醚、酮、二醇衍生物等。烃类有机溶剂的代表性类型为:汽油、煤油、正己烷、环己醇、甲基环己醇、苯、甲苯和二甲苯。卤代烃有机溶剂的类型为:二氯甲烷、氯仿、二氯乙烷、三氯乙烷、四氯乙烷、二氯乙烯、三氯乙烯、四氯乙烯、氯苯和邻二氯苯。醇有机溶剂的类型为:1-丁醇、2-丁醇、异丁醇、异戊醇、异丙醇,并且醚有机溶剂的类型为:乙醚、二噁烷和四氢丁烷。酮有机溶剂的类型为:丙酮、甲基乙基酮、甲基丁基酮和甲基异丁基酮。二醇醚类有机溶剂的类型为:乙二醇单甲醚、乙二醇单乙醚,并且有机溶剂的其它类型为二硫化物、烃和甲酚。
作为用于硅烷处理的硅烷化合物的实例,可列出以下物质:氨基硅烷、乙烯基硅烷、环氧硅烷、甲基丙烯酸酯硅烷、烷基硅烷、苯基硅烷和氯硅烷。优选地,用氨基硅烷化合物进行处理可改善耐久性和强度。
利用有机树脂涂布是在表面上使用诸如丙烯酸树脂或氨基甲酸酯树脂等高聚物以便牢固地形成均匀的膜,并且通常对纤维施加溶解并分散在溶剂或水中的树脂乳剂,例如树脂分散体。其后,通过加热将溶剂或水蒸发而形成连续膜。
可将选自由等离子体处理和整体处理(Bulky treatment)组成的组中的至少一种作为所述物理表面处理工序。
等离子体处理是通过利用大气等离子体处理的等离子体清洁方法将已堆积在纤维表面上的有机物洗掉的工序,并且其可通过在表面上施加赋予粗糙度而改善与其它材料的粘合强度。
在经过如上所述的化学和物理表面处理工序之后,将进行通过编织纤维纱而制造加固织物的工序。
下文中,将描述构成本发明次级气体隔板的加固织物的编织。
在编织加固织物时,当利用选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的两种以上纤维纱进行编织时,施用单纱或加捻纱或合股纱,其中各纤维纱形成纬线和经线。
另一方面,可使用混杂纤维纱编织本发明的加固织物,其中选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的两种以上的单纱或加捻纱进行2-合股制纱。当用上述混杂纤维纱进行编织时,可以用相同种类的混杂纤维纱编织纬线和经线。例如,可通过将玻璃-碳混杂纤维纱(其通过选择玻璃纤维的单纱和碳纤维的单纱进行2-合股制纱)施用于纬线和经线而进行编织。
另外,编织可通过以下方式进行:将混杂纤维纱施用于纬线,并将不是混杂纤维纱的纤维纱施用于经线;或者将混杂纤维纱施用于经线,并将不是混杂纤维纱的纤维纱施用于纬线。
当编织加固织物时,为了实现最佳强度和物理特性以及有竞争力的价格,可以改变构成经线和纬线的各纤维纱的编织密度和混合比。另外,可以最终表达为次级气体隔板的多样性。此时,虽然对于编织密度的范围没有特别限制,但加固织物的编织密度分别优选为20数/英寸~35数/英寸,并且虽然对于编织形式没有特别限制,但可提供平织形式、缎织形式或斜织形式作为实例。
另外,在编织加固织物时,本发明可通过在经线或纬线处选择两种以上纤维纱而进行编织,并且所选择的两种纤维纱的混合比可以以1:1的混合比以及各种不同比例进行编织。例如,作为待施用至纬线的纤维纱,当选择玻璃纤维的2-合股纱和芳族聚酰胺纤维的2-合股纱时,既可在纬线处交替编织玻璃纤维纱和芳族聚酰胺纤维纱(此情况中,混合比为1:1),又可在纬线处以玻璃纤维纱、玻璃纤维纱、芳族聚酰胺纤维纱、玻璃纤维纱、玻璃纤维纱和芳族聚酰胺纤维纱的顺序相继编织(此情况中,混合比为2:1)。
另外,可选择彼此皆不同的三种纤维纱,并且上述三种纤维纱各自可在经线除交替编织(1:1:1),并且还可以将混合比改为1:2:1。
以这种方式,通过不同地改变形成加固织物纬线或经线的多种纤维纱的混合比进行编织,可表达出次级气体隔板的多样性。
加固层的成型过程是形成加固层(200)的过程,其是通过使氨基甲酸酯粘合片(210)经过150℃~180℃的加热辊(320)和压力辊(330)而在加固织物(220)表面的一侧上一体化成型的工序。
如图3所示,使加固织物(220)和氨基甲酸酯粘合片(210)各自能够支持进料辊(310a)(310b),使得氨基甲酸酯粘合片(210)接触所述加固织物(210)一侧的表面并供给至加热辊(320),经过加热辊(320)和压力辊(330)以便一体化成型并在卷绕辊(350)中进行卷绕工序。
使加固织物(200)稳定化,所述加固织物(200)经历了通过冷却区域然后再经过压力辊(330)并在卷绕辊(350)中进行卷绕工序的成型过程。
加固织物(220)通过使用两种以上纤维纱而发挥显著增强的抗疲劳性,并且通过进行化学和物理表面处理工序而显示出耐久性以及改善的与氨基甲酸酯粘合片(210)的粘合性。
通过使用具有较高耐热性的热塑性聚氨酯弹性体而将熔化温度设定为160℃以上的氨基甲酸酯粘合片(210)能够确保次级气体隔板产品的热稳定性,并且其通过使用在橡胶硬度测试中的硬度超过90A的那些可以改善拉伸强度。
另外,所述氨基甲酸酯粘合片的特征在于以吹塑方法形成。氨基甲酸酯粘合片通过吹塑的方法制造,吹塑方法是一种如下的方法:通过挤出和注射预成型(修坯)为管形而制成特定形状的固体物质,并且随后将其放入模具中并对内部吹送空气以便膨胀和冷却固化。这是用于通过吹塑生产膜的方法,其与通过T模头(T-Die)和挤出机提供的产品相比更为多产和成本有效。
成片过程是一种通过以下方式成片的过程:将一体化有氨基甲酸酯粘合片的加固层层压在所述铝箔的两侧上,并且利用旋转固化成型机进行连续成型过程。
分别设定加固层成型过程和成片过程的原因在于,可以通过以下方式改善次级气体隔板产品的均匀性:防止加固层变形,并且对加固层成型过程中通过一次模制品制造而得的一次模制品进行中间检查,并用旋转固化成型机再次成型。
稳定化过程是为了片状层压体的稳定化而进行热处理和后固化工序的过程。进行热处理和后固化工序的原因是通过在氨基甲酸酯粘合片(其用于粘合加固层和铝箔)熔化和粘合之后使分子排列稳定,从而增加粘合强度。
通过上述方法生产的次级气体隔板具有层压结构,其中部分或全部构造纤维进行改性的加固层附接在铝箔的两侧(参见图2)。
本发明的特征在于使用通过以下方式编织的编织物作为加固层:在经线和纬线处施用各异质纤维纱,或者将混杂纤维纱施用至经线或纬线的至少任意一个或多个位置。因此,通过从由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中选择不同种类的纤维纱的单纱或2-合股纱而捻曲和编织所述加固织物,或者通过在纬线和/或经线处施用混杂纤维纱(其通过将选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的两种单纱2-合股制纱制成)而编织所述加固织物。另外,其具有300g/m2~400g/m2的单位重量。
下文中,将通过优选的实施例更详细地描述本发明的次级隔板及其制造方法。
实施例1
分别通过缆/股捻曲以4.0TPI使两片经氨基硅烷表面处理过的玻璃纤维纱(E玻璃,G 75)相叠,并将所得合股纱(ECG 75 1/2)施用在经线处,并且分别通过缆/股捻曲以4.0TPI使两片经氨基硅烷表面处理过的芳族聚酰胺纤维纱(600旦尼尔)相叠,并将所得合股纱(1/2)施用在纬线处。由此,通过平织方法编织加固织物,同时经线的编织密度为32数/英寸,而纬线的编织密度为26数/英寸。
在进行将氨基甲酸酯粘合片一体化成型于所得加固织物一侧上的加固成型过程之后,将一体化有氨基甲酸酯粘合片的加固层层压在铝箔的两侧上。然后,通过用旋转固化成型机将层压体连续成型,获得次级隔板层压片。所得次级隔板层压片经受热处理并进行后固化,从而使次级隔板层压片的制造完成。
实施例2
以与实施例1相同的方式制造次级隔板层压片,不同之处在于:通过在纬线处以1:1的混合比放置而分别编织合股纱(ECG 75 1/2)和合股纱(1/2),所述合股线(ECG 75 1/2)通过使各自经缆/股捻曲的4.0TPI的两片经氨基硅烷表面处理过的玻璃纤维纱(E玻璃,G75)合股而制得,而所述合股线(1/2)通过使各自经缆/股捻曲的4.0TPI的两片经氨基硅烷表面处理过的芳族聚酰胺纤维纱(600旦尼尔)合股而制得。
实施例3~5和比较例1~3
以与实施例1相同的方式制造次级隔板层压片,不同之处在于:构成加固织物的纤维纱类型和纤维纱厚度、编织密度以及编织形式与下表1相同。
表1
本发明的次级隔板层压片及其它层压片的各疲劳破坏强度的测量结果在表2中示出。疲劳破坏强度是指在维持-139℃的腔室中,在样品经历冷却过程直至稳定化且无热收缩之后,当对其重复添加2.23mm位移的力时,到样品破坏为止重复进行的实验次数。
表2
如表2所示,在通过施用实施例所述的加固织物而生产的次级气体隔板的情况下中,可以确认,与比较例所述的常规次级气体隔板相比,抗疲劳性提高了10倍以上。
上文所述的本发明仅是示例性,且本发明所属领域的普通技术人员会充分理解能由此得出的各种变型和其它实例。因此,可以容易理解本发明的形式并非仅局限于前面的详述中描述的那些。并由此,本发明的实际技术保护范围应通过所附权利要求范围的技术构思限定。另外,本发明应理解为包含由所附权利要求范围限定的本发明的主旨,并且包含本发明范围内的所有变型和等价物以及替代方案。
Claims (10)
1.一种在低温条件下重复疲劳抗性显著改善的液化气储罐用柔性次级气体隔板,其包含:
氨基甲酸酯粘合片,所述氨基甲酸酯粘合片具有与第二表面相对的第一表面,并且厚度为50μm至200μm;和
加固织物,所述加固织物包含通过混合编织而织成的纬线和经线,并且连接到所述氨基甲酸酯粘合片的第一表面,其中所述纬线包括包含玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的一种或多种的第一纤维,所述经线包括包含玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的一种或多种的第二纤维,所述第一纤维与所述第二纤维不同,其中所述次级气体隔板还包含:
铝箔层,所述铝箔层具有与第二表面相对的第一表面,纯度大于99.2%并且厚度为50μm至100μm,其中所述铝箔层连接到所述氨基甲酸酯粘合片的第二表面;
第二氨基甲酸酯粘合片,所述第二氨基甲酸酯粘合片具有与第二表面相对的第一表面,并且厚度为50μm至200μm,其中所述第二氨基甲酸酯粘合片的第一表面连接到所述铝箔层的第二表面;和
第二加固织物,所述第二加固织物连接到所述第二氨基甲酸酯粘合片的第二表面,包含通过混合编织而织成的纬线和经线,其中所述纬线包括包含玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的一种或多种的第一纤维,所述经线包括包含玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的一种或多种的第二纤维,其中所述第一纤维与所述第二纤维不同。
2.如权利要求1所述的柔性次级气体隔板,其中所述加固织物的经线是玻璃纤维纱,并且所述加固织物的纬线是芳族聚酰胺纤维纱。
3.如权利要求1所述的柔性次级气体隔板,其中所述加固织物的经线是玻璃纤维纱,并且所述加固织物的纬线是加捻玻璃纤维和芳族聚酰胺纤维纱中的一种或者交替施用的玻璃纤维和芳族聚酰胺纤维纱。
4.如权利要求1所述的柔性次级气体隔板,
其中,形成所述加固织物的纬线和经线的各纤维纱的编织密度和混合比通过多种混合过程织成。
5.如权利要求1所述的柔性次级气体隔板,
其中,各纤维纱的形式选自由单纱、加捻纱和2-合股纱组成的组。
6.一种在低温条件下重复疲劳抗性显著改善的液化气储罐用柔性次级气体隔板,其包含:
氨基甲酸酯粘合片,所述氨基甲酸酯粘合片具有与第二表面相对的第一表面,并且厚度为50μm至200μm;和
加固织物,所述加固织物包含纬线和经线,并且连接到所述氨基甲酸酯粘合片的第一表面,其中所述纬线包括通过对加捻纱进行2-合股制纱而织成的混杂纤维纱,每个单独的纤维纱选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组;或者所述经线包括通过对加捻纱进行2-合股制纱而织成的混杂纤维纱,每个单独的纤维纱选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组,其中所述次级气体隔板还包含:
铝箔层,所述铝箔层具有与第二表面相对的第一表面,纯度大于99.2%并且厚度为50μm至100μm,其中所述铝箔层连接到所述氨基甲酸酯粘合片的第二表面;
第二氨基甲酸酯粘合片,所述第二氨基甲酸酯粘合片具有与第二表面相对的第一表面,并且厚度为50μm至200μm,其中所述第二氨基甲酸酯粘合片的第一表面连接到所述铝箔层的第二表面;和
第二加固织物,所述第二加固织物包含通过混合编织而织成的纬线和经线,并且连接到所述第二氨基甲酸酯粘合片的第二表面,其中所述纬线包括包含玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的一种或多种的第一纤维,所述经线包括包含玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维中的一种或多种的第二纤维,其中所述第一纤维与所述第二纤维不同。
7.如权利要求6所述的柔性次级气体隔板,其中所述加固织物的纬线是合股的玻璃纤维纱和芳族聚酰胺纤维纱。
8.如权利要求6所述的柔性次级气体隔板,
其中,所述加固织物的纬线是混杂纤维纱,并且所述加固织物的经线是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的单纱、加捻纱或2-合股纱的一种或多种。
9.如权利要求6所述的柔性次级气体隔板,
其中,所述加固织物的纬线是选自由玻璃纤维、碳纤维、芳族聚酰胺纤维和合成纤维组成的组中的纤维纱的单纱、加捻纱或2-合股纱,并且所述加固织物的经线是混杂纤维纱。
10.如权利要求1或6所述的柔性次级气体隔板,
其特征在于,对形成所述加固织物的纤维纱的表面进行选自由化学表面处理和物理表面处理组成的组中的至少一种处理而织成所述加固织物。
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