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MELT PROCESSABLE SEMICRYSTALLINE POLYIMIDE STRUCTURAL ADHESIVE BASED ON 1,3-BIS(4-AMINOPHENOXY) BENZENE AND 3,3',4,4 -BIPHENYLTETRACARBOXYLIC DIANHYDRIDE

机译：基于1,3-双（4-氨基苯氧基）苯和3,3'，4,4-双苯基四羧酸二酐的熔融加工半晶聚酰亚胺结构粘合剂

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Introducing crystallinity in polyimides offers the advantage of increased solvent resistance and retention of mechanical properties above the glass transition temperature(T_g). This work examines the thermal stability, semicrystalline morphology and adhesive properties of a new polyimide synthesized at Virginia Tech which is based on l,3-bis(4-aminophenoxy) benzene (TPER diamine) and 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA). The polymer has a T_g of ca. 210°C and a T_m of 395°C. Polarized light microscopy was used to evaluate the morphology and spherulitic growth rates. The effects of molecular weight and melt conditions were studied in this regard. Lap-Shear specimens were made using Ti-6Al-4V alloy and the bonding conditions were optimized with respect to bonding temperature, bonding time and pressure. High lap-shear strengths of ca. 8000psi (55.172MPa) were obtained and the fracture surface investigation using the SEM revealed a very rough ductile surface. Durability studies on lap shears were conducted for aging and testing temperatures of ambient, 177°C and 232°C. Significant stability was observed for these aging temperatures for up to seven weeks. The bond strengths were found to be affected by testing temperatures rather than the aging conditions for the duration of the study. The effect of various solvents was investigated using lap-shear tests for periods up to 9 days.

机译：在聚酰亚胺中引入结晶度提供更高的耐溶剂性和高于玻璃化转变温度（T_G）机械性能的保留的优点。这项工作检查的热稳定性，半结晶形态和在弗吉尼亚技术合成的新聚酰亚胺，其是基于1,3-双（4-氨基苯氧基）苯（TPER二胺）和3,3' ，的粘合性能4,4'-联苯四甲酸二酐（BPDA）。的聚合物具有约的T_G 210℃和395℃的T_m。偏光显微镜来评价形态和球状的增长率。分子量和熔体条件的影响在这方面进行了研究。搭接剪切样品用的Ti-6Al-4V合金制成，并且接合条件相对于接合温度，接合时间和压力最优化。约的高搭接剪切强度8000psi（55.172MPa）获得并使用SEM的断裂面调查显示一个非常粗糙的表面延展的。上搭接剪切耐久性研究，老化和测试的环境的温度下进行，177℃和232℃。观察这些老化温度达七周显著稳定性。被发现的结合强度，以通过测试的温度，而不是老化条件的研究期间受到影响。使用周期9天搭接剪切测试各种溶剂的影响进行了研究。

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《Society of Plastics Engnieers annual technical conference》|1998年||共5页
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作者
Varun Ratta; Edward J. Stancik; Amba Ayambem; Hari Parvatareddy; James E. McGrath; Garth L. Wilkes;
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中图分类非金属材料;
关键词
semicrystalline polyimide; lap-shear strength; morphology;

机译：半结晶聚酰亚胺;剪切强度;形态学;

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专利

1. A melt-processable semicrystalline polyimide structural adhesive based on 1,3-bis(4-aminophenoxy) benzene and 3,3',4,4'-biphenyltetracarboxylic dianhydride [J] . Varun Ratta, Edward J. Stancik, Amba Ayambem, Polymer: The International Journal for the Science and Technology of Polymers . 1999,第7期

机译：基于1,3-双（4-氨基苯氧基）苯和3,3'，4,4'-联苯四甲酸二酐的可熔融加工的半结晶聚酰亚胺结构胶
2. Thermal stability, crystallization kinetics and morphology of a new semicrystalline polyimide based on 1,3-bis(4-aminophenoxy) benzene and 3,3 ',4,4 '-biphenyltetracarboxylic dianhydride [J] . Ratta V., Young R., McGrath JE., Polymer: The International Journal for the Science and Technology of Polymers . 2000,第22期

机译：基于1,3-双（4-氨基苯氧基）苯和3,3'，4,4'-联苯四甲酸二酐的新型半结晶聚酰亚胺的热稳定性，结晶动力学和形貌
3. SEMICRYSTALLINE POLYIMIDES BASED ON CONTROLLED MOLECULAR WEIGHT PHTHALIMIDE END-CAPPED 1,3-BIS(4-AMINOPHENOXY)BENZENE AND 3,3',4,4'-BIPHENYLTETRACARBOXYLIC DIANHYDRIDE - SYNTHESIS, CRYSTALLIZATION, MELTING, AND THERMAL STABILITY [J] . Srinivas S., Graham M., Gardner S., Macromolecules . 1997,第4期

机译：基于受控分子量邻苯二甲酰亚胺封端的1,3-双（4-氨基苯氧基）苯和3,3'，4,4'-联苯二羧酸二羧酸二乙酰胺的半结晶聚酰亚胺-合成，结晶，熔融，熔融，
4. MELT PROCESSABLE SEMICRYSTALLINE POLYIMIDE STRUCTURAL ADHESIVE BASED ON 1,3-BIS(4-AMINOPHENOXY) BENZENE AND 3,3',4,4 -BIPHENYLTETRACARBOXYLIC DIANHYDRIDE [C] . Varun Ratta, Edward J. Stancik, Amba Ayambem, Conference Proceedings at ANTEC '98 . 1998

机译：基于1,3-双（4-氨基苯氧基）苯和3,3'，4,4-苯二甲酰基二羧酸二酐的熔融可加工半结晶聚酰亚胺结构胶
5. Melt-Processable Semicrystalline Polyimides Based on 1,4-Bis(3,4-dicarboxyphenoxy)benzene Dianhydride (HQDPA): Synthesis, Crystallization, and Melting Behavior [O] . Hongfei Zhang, Wei Wang, Guofei Chen, 2016

机译：基于1,4-双（3,4-二羧基苯氧基）苯二酐（HQDPA）的可熔融加工的半结晶聚酰亚胺：合成，结晶和熔融行为
6. A Positive-Type Alkaline-Developable Photosensitive Polyimide Based on the Poly(amic acid) from 2,2′,6,6′-Biphenyltetracarboxylic Dianhydride and 1,3-Bis(4-aminophenoxy)benzene, and a Diazonaphthoquinone [O] . Katsuya Sakayori, Yuji Shibasaki, Mitsuru Ueda 2006

机译：基于2,2'，6,6'-联苯基四羧酸二酐和1,3-双（4-氨基氧基）苯的聚（氨基酸）的正型碱性显影光敏聚酰亚胺，以及重氮碱基醌
7. Copolyimides Prepared from 3,4'-Oxydianiline and 1,3-Bis(3-Aminophenoxy) Benzene with 3,3', 4,4'-Biphenylcarboxylic Dianhydride [R] . 1999

机译：由3,4'-二氨基二苯醚和1,3-双（3-氨基苯氧基）苯与3,3'，4,4'-联苯基羧酸二酐制备的共聚酰亚胺

MELT PROCESSABLE SEMICRYSTALLINE POLYIMIDE STRUCTURAL ADHESIVE BASED ON 1,3-BIS(4-AMINOPHENOXY) BENZENE AND 3,3',4,4 -BIPHENYLTETRACARBOXYLIC DIANHYDRIDE

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