CN108773120A - 高强度芳纶纸夹芯复合结构及其制造方法 - Google Patents
高强度芳纶纸夹芯复合结构及其制造方法 Download PDFInfo
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Abstract
本发明揭示了高强度芳纶纸夹芯复合结构,包括聚酯薄膜、设于聚酯薄膜两侧的芳纶纸蜂窝芯、设于芳纶纸蜂窝芯外侧的树脂纤维层,所述聚酯薄膜与芳纶纸蜂窝芯之间通过粘合剂贴合。本发明实现芳纶纸夹芯复合结构具有高强度耐用特性。
Description
技术领域
本发明属于芳纶制造技术领域,尤其涉及一种高强度芳纶纸夹芯复合结构及其制造方法。
背景技术
芳纶纸为绝缘纸,其具有良好的热稳定性、阻燃性、耐高温绝缘性和化学稳定性;芳纶纸作为蜂窝夹层结构,具有重量轻、强度高、抗弯刚度性能好,现有夹芯结构在制造和使用过程中,容易产生脱胶和分层而造成损伤破坏。
发明内容
本发明的目的是为了解决上述技术问题,而提供一种高强度芳纶纸夹芯复合结构及其制造方法,从而实现芳纶纸夹芯复合结构具有高强度耐用特性。为了达到上述目的,本发明技术方案如下:
高强度芳纶纸夹芯复合结构,包括聚酯薄膜、设于聚酯薄膜两侧的芳纶纸蜂窝芯、设于芳纶纸蜂窝芯外侧的树脂纤维层,所述聚酯薄膜与芳纶纸蜂窝芯之间通过粘合剂贴合。
具体的,所述树脂纤维层为树脂组合物浸渍纤维布形成的纤维布浸料层。
具体的,所述树脂组合物按重量份包括酚基丙烷环氧树脂3-8份、四酚基环氧树脂10-20份、聚醚砜5-15份、乳化剂1-5份、丙酮3-8份、乙二醇单甲醚份3-6份。
具体的,所述粘合剂的原料按重量份包括以下组份:40-45份酚醛树脂、15-17份硼酸、8-15份酚醛环氧树脂、10-20份固体环氧树脂、5-10份双酚A型环氧树脂、5-10份促进剂、3-6份增韧剂、5-10份耐热填料。
具体的,所述粘合剂表面形成与芳纶纸蜂窝芯截面相对应匹配的凸部。
高强度芳纶纸夹芯复合结构的制造方法,包括以下步骤:
S1,提供聚酯薄膜和芳纶纸蜂窝芯,将芳纶纸蜂窝芯进行干燥处理;
S2,制作涂胶辊,涂胶辊的表面具有与芳纶纸蜂窝芯截面相同的凹陷,凹陷内表面粗糙处理;
S3,聚酯薄膜涂胶,制作粘合剂,用涂胶辊带出粘合剂至聚酯薄膜表层;
S4,芳纶纸蜂窝芯与聚酯薄膜的两侧贴合,聚酯薄膜上的粘合剂形成与芳纶纸蜂窝芯底部相对应匹配的凸部;
S5,将芳纶纸蜂窝芯和聚酯薄膜贴合后送入烘箱;
S6,制作树脂纤维层,将树脂纤维层平铺至芳纶纸蜂窝芯的外表面;
S7,将S6制得的芳纶纸夹芯复合结构进行烘干粘接,粘接完全固化。
具体的,S1中干燥温度控制在60-70℃,干燥时间控制在20-40min。
具体的,S5中烘烤温度为210℃-260℃,烘烤时间为20-25s。
具体的,S7温度控制在90-100℃,连续烘干180-200h。
与现有技术相比,本发明高强度芳纶纸夹芯复合结构及其制造方法的有益效果主要体现在:
制得的芳纶纸夹芯复合结构具有耐热性、绝缘性及耐磨性能显著,芳纶纸夹芯复合结构可以在高温下连续使用,具有电绝缘性和热稳定性,同时体积电阻大,介质损耗小,保护电路不被毁坏;双层芳纶纸蜂窝芯和聚酯薄膜复合结构,是具有高强度的结构,可以减轻蜂窝芯的承重,提高整体复合结构外承载力;粘合剂内组份配比合理,不易产生脱胶问题,剥离力适中。
附图说明
图1是本发明的结构示意图;
图中数字表示:
1聚酯薄膜、2芳纶纸蜂窝芯、3树脂纤维层、4粘合剂。
具体实施方式
下面结合附图将对本发明实施例中的技术方案进行清楚、完整的描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。
实施例1:
参照图1所示,本实施例是高强度芳纶纸夹芯复合结构,包括聚酯薄膜1、设于聚酯薄膜1两侧的芳纶纸蜂窝芯2、设于芳纶纸蜂窝芯2外侧的树脂纤维层3,聚酯薄膜1与芳纶纸蜂窝芯2之间通过粘合剂4贴合;
芳纶纸蜂窝芯2的空格截面为正方形,芳纶纸蜂窝芯2的纸材厚度为0.05mm;
树脂纤维层3为树脂组合物浸渍纤维布形成的纤维布浸料层,树脂组合物按重量份包括酚基丙烷环氧树脂3份、四酚基环氧树脂20份、聚醚砜5份、乳化剂5份、丙酮3份、乙二醇单甲醚份6份;
粘合剂4的原料按重量份包括以下组份:40份酚醛树脂、17份硼酸、8份酚醛环氧树脂、20份固体环氧树脂、5份双酚A型环氧树脂、10份促进剂、3份增韧剂、10份耐热填料;
酚醛树脂为2123酚醛树脂,酚醛环氧树脂为F-51、F-44、F-48酚醛环氧树脂中的任一种,固体环氧树脂为E12、E20、E31固体环氧树脂中的任一种;
双酚A型环氧树脂为E54环氧树脂、E51环氧树脂、AG-80胺类环氧树脂中任一种;
粘合剂4热稳定性能好,具有优异的粘接性,牢固的粘接力,剥离强度适中,避免传统粘合剂剥离力较大增加复合结构的重量,避免传统粘合剂剥离力较小,容易翘边、开口问题。
树脂纤维层3在高温粘接的条件下,树脂纤维层3具有良好的韧性和铺覆性能,酚基丙烷环氧树脂、四酚基环氧树脂适当配比结合具有固化程度完全后,耐温性和韧性提高的特点。
粘合剂4通过涂胶辊涂覆至聚酯薄膜1的表面,粘合剂4表面形成与芳纶纸蜂窝芯2截面相对应匹配的凸部。
高强度芳纶纸夹芯复合结构的制造方法,包括以下步骤:
S1,提供聚酯薄膜和芳纶纸蜂窝芯,将芳纶纸蜂窝芯进行干燥处理,干燥温度控制在60℃,干燥时间控制在40min;
S2,制作涂胶辊,涂胶辊的表面具有与芳纶纸蜂窝芯截面相同的凹陷,凹陷内表面粗糙处理;
S3,聚酯薄膜涂胶,制作粘合剂,用涂胶辊带出粘合剂至聚酯薄膜表层;
S4,芳纶纸蜂窝芯与聚酯薄膜的两侧贴合,聚酯薄膜上的粘合剂形成与芳纶纸蜂窝芯底部相对应匹配的凸部;
S5,将芳纶纸蜂窝芯和聚酯薄膜贴合后送入烘箱,烘烤温度为210℃,烘烤时间为25s;
S6,制作树脂纤维层,将树脂纤维层平铺至芳纶纸蜂窝芯的外表面;
S7,将S6制得的芳纶纸夹芯复合结构进行烘干粘接,温度控制在90℃,连续烘干200h,粘接完全固化。
实施例2:
参照图1所示,本实施例是高强度芳纶纸夹芯复合结构,包括聚酯薄膜1、设于聚酯薄膜1两侧的芳纶纸蜂窝芯2、设于芳纶纸蜂窝芯2外侧的树脂纤维层3,聚酯薄膜1与芳纶纸蜂窝芯2之间通过粘合剂4贴合;
芳纶纸蜂窝芯2的空格截面为正方形,芳纶纸蜂窝芯2的纸材厚度为0.07mm;
树脂纤维层3为树脂组合物浸渍纤维布形成的纤维布浸料层,树脂组合物按重量份包括酚基丙烷环氧树脂8份、四酚基环氧树脂10份、聚醚砜15份、乳化剂1份、丙酮8份、乙二醇单甲醚份3份;
粘合剂4的原料按重量份包括以下组份:45份酚醛树脂、15份硼酸、15份酚醛环氧树脂、10份固体环氧树脂、10份双酚A型环氧树脂、5份促进剂、6份增韧剂、5份耐热填料;
酚醛树脂为2123酚醛树脂,酚醛环氧树脂为F-51、F-44、F-48酚醛环氧树脂中的任一种,固体环氧树脂为E12、E20、E31固体环氧树脂中的任一种;
双酚A型环氧树脂为E54环氧树脂、E51环氧树脂、AG-80胺类环氧树脂中任一种;
粘合剂4热稳定性能好,具有优异的粘接性,牢固的粘接力,剥离强度适中,避免传统粘合剂剥离力较大增加复合结构的重量,避免传统粘合剂剥离力较小,容易翘边、开口问题。
树脂纤维层3在高温粘接的条件下,树脂纤维层3具有良好的韧性和铺覆性能,酚基丙烷环氧树脂、四酚基环氧树脂适当配比结合具有固化程度完全后,耐温性和韧性提高的特点。
粘合剂4通过涂胶辊涂覆至聚酯薄膜1的表面,粘合剂4表面形成与芳纶纸蜂窝芯2截面相对应匹配的凸部。
高强度芳纶纸夹芯复合结构的制造方法,包括以下步骤:
S1,提供聚酯薄膜和芳纶纸蜂窝芯,将芳纶纸蜂窝芯进行干燥处理,干燥温度控制在70℃,干燥时间控制在20min;
S2,制作涂胶辊,涂胶辊的表面具有与芳纶纸蜂窝芯截面相同的凹陷,凹陷内表面粗糙处理;
S3,聚酯薄膜涂胶,制作粘合剂,用涂胶辊带出粘合剂至聚酯薄膜表层;
S4,芳纶纸蜂窝芯与聚酯薄膜的两侧贴合,聚酯薄膜上的粘合剂形成与芳纶纸蜂窝芯底部相对应匹配的凸部;
S5,将芳纶纸蜂窝芯和聚酯薄膜贴合后送入烘箱,烘烤温度为210℃,烘烤时间为20s;
S6,制作树脂纤维层,将树脂纤维层平铺至芳纶纸蜂窝芯的外表面;
S7,将S6制得的芳纶纸夹芯复合结构进行烘干粘接,温度控制在100℃,连续烘干180h,粘接完全固化。
实施例3:
参照图1所示,本实施例是高强度芳纶纸夹芯复合结构,包括聚酯薄膜1、设于聚酯薄膜1两侧的芳纶纸蜂窝芯2、设于芳纶纸蜂窝芯2外侧的树脂纤维层3,聚酯薄膜1与芳纶纸蜂窝芯2之间通过粘合剂4贴合;
芳纶纸蜂窝芯2的空格截面为正方形,芳纶纸蜂窝芯2的纸材厚度为0.06mm;
树脂纤维层3为树脂组合物浸渍纤维布形成的纤维布浸料层,树脂组合物按重量份包括酚基丙烷环氧树脂5份、四酚基环氧树脂15份、聚醚砜10份、乳化剂3份、丙酮5份、乙二醇单甲醚份4份;
粘合剂4的原料按重量份包括以下组份:43份酚醛树脂、16份硼酸、11份酚醛环氧树脂、15份固体环氧树脂、8份双酚A型环氧树脂、8份促进剂、4份增韧剂、8份耐热填料;
酚醛树脂为2123酚醛树脂,酚醛环氧树脂为F-51、F-44、F-48酚醛环氧树脂中的任一种,固体环氧树脂为E12、E20、E31固体环氧树脂中的任一种;
双酚A型环氧树脂为E54环氧树脂、E51环氧树脂、AG-80胺类环氧树脂中任一种;
粘合剂4热稳定性能好,具有优异的粘接性,牢固的粘接力,剥离强度适中,避免传统粘合剂剥离力较大增加复合结构的重量,避免传统粘合剂剥离力较小,容易翘边、开口问题。
树脂纤维层3在高温粘接的条件下,树脂纤维层3具有良好的韧性和铺覆性能,酚基丙烷环氧树脂、四酚基环氧树脂适当配比结合具有固化程度完全后,耐温性和韧性提高的特点。
粘合剂4通过涂胶辊涂覆至聚酯薄膜1的表面,粘合剂4表面形成与芳纶纸蜂窝芯2截面相对应匹配的凸部。
高强度芳纶纸夹芯复合结构的制造方法,包括以下步骤:
S1,提供聚酯薄膜和芳纶纸蜂窝芯,将芳纶纸蜂窝芯进行干燥处理,干燥温度控制在65℃,干燥时间控制在30min;
S2,制作涂胶辊,涂胶辊的表面具有与芳纶纸蜂窝芯截面相同的凹陷,凹陷内表面粗糙处理;
S3,聚酯薄膜涂胶,制作粘合剂,用涂胶辊带出粘合剂至聚酯薄膜表层;
S4,芳纶纸蜂窝芯与聚酯薄膜的两侧贴合,聚酯薄膜上的粘合剂形成与芳纶纸蜂窝芯底部相对应匹配的凸部;
S5,将芳纶纸蜂窝芯和聚酯薄膜贴合后送入烘箱,烘烤温度为240℃,烘烤时间为23s;
S6,制作树脂纤维层,将树脂纤维层平铺至芳纶纸蜂窝芯的外表面;
S7,将S6制得的芳纶纸夹芯复合结构进行烘干粘接,温度控制在95℃,连续烘干190h,粘接完全固化。
应用以上实施例时,制得的芳纶纸夹芯复合结构具有耐热性、绝缘性及耐磨性能显著,芳纶纸夹芯复合结构可以在高温下连续使用,具有电绝缘性和热稳定性,同时体积电阻大,介质损耗小,保护电路不被毁坏;双层芳纶纸蜂窝芯和聚酯薄膜复合结构,是具有高强度的结构,可以减轻蜂窝芯的承重,提高整体复合结构外承载力;粘合剂内组份配比合理,不易产生脱胶问题,剥离力适中。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。
Claims (9)
1.高强度芳纶纸夹芯复合结构,其特征在于:包括聚酯薄膜、设于聚酯薄膜两侧的芳纶纸蜂窝芯、设于芳纶纸蜂窝芯外侧的树脂纤维层,所述聚酯薄膜与芳纶纸蜂窝芯之间通过粘合剂贴合。
2.根据权利要求1所述的高强度芳纶纸夹芯复合结构,其特征在于:所述树脂纤维层为树脂组合物浸渍纤维布形成的纤维布浸料层。
3.根据权利要求2所述的高强度芳纶纸夹芯复合结构,其特征在于:所述树脂组合物按重量份包括酚基丙烷环氧树脂3-8份、四酚基环氧树脂10-20份、聚醚砜5-15份、乳化剂1-5份、丙酮3-8份、乙二醇单甲醚份3-6份。
4.根据权利要求1所述的高强度芳纶纸夹芯复合结构,其特征在于:所述粘合剂的原料按重量份包括以下组份:40-45份酚醛树脂、15-17份硼酸、8-15份酚醛环氧树脂、10-20份固体环氧树脂、5-10份双酚A型环氧树脂、5-10份促进剂、3-6份增韧剂、5-10份耐热填料。
5.根据权利要求1所述的高强度芳纶纸夹芯复合结构,其特征在于:所述粘合剂表面形成与芳纶纸蜂窝芯截面相对应匹配的凸部。
6.高强度芳纶纸夹芯复合结构的制造方法,其特征在于,包括以下步骤:
S1,提供聚酯薄膜和芳纶纸蜂窝芯,将芳纶纸蜂窝芯进行干燥处理;
S2,制作涂胶辊,涂胶辊的表面具有与芳纶纸蜂窝芯截面相同的凹陷,凹陷内表面粗糙处理;
S3,聚酯薄膜涂胶,制作粘合剂,用涂胶辊带出粘合剂至聚酯薄膜表层;
S4,芳纶纸蜂窝芯与聚酯薄膜的两侧贴合,聚酯薄膜上的粘合剂形成与芳纶纸蜂窝芯底部相对应匹配的凸部;
S5,将芳纶纸蜂窝芯和聚酯薄膜贴合后送入烘箱;
S6,制作树脂纤维层,将树脂纤维层平铺至芳纶纸蜂窝芯的外表面;
S7,将S6制得的芳纶纸夹芯复合结构进行烘干粘接,粘接完全固化。
7.根据权利要求6所述的高强度芳纶纸夹芯复合结构的制造方法,其特征在于:S1中干燥温度控制在60-70℃,干燥时间控制在20-40min。
8.根据权利要求6所述的高强度芳纶纸夹芯复合结构的制造方法,其特征在于:S5中烘烤温度为210℃-260℃,烘烤时间为20-25s。
9.根据权利要求6所述的高强度芳纶纸夹芯复合结构的制造方法,其特征在于:S7温度控制在90-100℃,连续烘干180-200h。
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