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Применить Всего найдено 3. Отображено 3.
11-03-2015 дата публикации

Organic electroluminescent material and applications thereof

Номер: CN104403661A
Автор: SHI YU, SHENG LEI, LIU YINGRUI, JU CHENGLIANG, MA ZHENTANG, ZHONG SHANGBIN
Принадлежит:

The invention relates to an organic electroluminescent material and applications thereof. The structure of the organic electroluminescent material is represented by the formula (I), wherein the Ar1 represents a benzene, naphthalene, biphenyl, phenanthrene or fluorene group without any substitute, or a benzene, naphthalene, biphenyl, phenanthrene or fluorene group with a substitute; and the Ar2 represents a benzene, naphthalene, biphenyl, phenanthrene or fluorene group without any substitute, or a benzene, naphthalene, biphenyl, phenanthrene or fluorene group with a substitute. The organic micromolecular material with a parallel ring structure is synthesized through coupling reactions, bromination reactions, and cyclization reactions.

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Номер записи: 1
11-03-2015 дата публикации

organic electroluminescent material, preparation method and applications thereof

Номер: CN104403662A
Автор: SHENG LEI, GAO ZILIANG, DONG PENGCHAO, JU CHENGLIANG, ZHANG ZHAO, YANG TENG
Принадлежит:

The invention relates to an organic electroluminescent material, a preparation method and applications thereof. The material is an organic micromolecular material, which takes 1,5-naphthyridine as the center and has a parallel ring structure, and the structure of the material is represented in the description. In the structural formula, the Ar1 and Ar2 individually represent an aromatic ring with/without a substituent or an aromatic heterocyclic ring with/without a substituent, and further represent a benzene ring, naphthalene ring, pyridine, [1,8]naphthyridine, pyrimidine or triazine with/without a substituent, wherein the Ar1 and Ar2 can be same or different. The provided material has a proper molecular energy level and high glass-transition temperature, so the material can be used as a phosphorescent main material and can be used to prepare the functional layer and especially the luminescent layer of an organic electroluminescent device in the organic electroluminescent field.

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Номер записи: 2
10-11-2010 дата публикации

Gas shield welding wire

Номер: CN0101879669A
Автор: JU XIAOFENG, LI ZHENHUA, JU CHENGLIANG, XIAOFENG JU, ZHENHUA LI, CHENGLIANG JU
Принадлежит:

The invention relates to a gas shield welding wire used for high-grade pipelines resistant to compression, impact and corrosion. The cold cracking sensitivity index Pcm of the welding wire is computed according to the following formula: Pcm=C+Si/30+(Mn+Cu+Cr)/20+Ni/60+Mo/15+V/10+5B and ranges from 0.15% to 0.25%. The welding wire is formed by the chemical components such as Cr, Ni, Mo, Ti, V and B, other elements such as Mn, Si and P, the balances Fe and S and other inevitable inclusion, wherein the total weight percentage of the alloys Cr, Ni, Mo, Ti, V and B is controlled between 0.6% and 1.2%; and the weight ratio of Mn to Si to P is 1.7-4.0 according to Mn/(Si+P). The welding wire has high strength matching high strength, high pressure and high required joint properties of the high-grade pipelines, high low-temperature impact absorbing energy, stable welding arc and excellent all-position welding processing property.

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Номер записи: 3