搜索结果: 1-15 共查到“知识库 高性能高分子材料”相关记录32条 . 查询时间(2.659 秒)
A study of the synthetic methods and properties of graphenes
synthetic methods properties graphenes
2010/10/5
Graphenes with varying number of layers can be synthesized by using different strategies. Thus, single-layer graphene is prepared by micromechanical cleavage, reduction of single-layer graphene oxide,...
Artificial extracellular matrix for embryonic stem cell cultures: a new frontier of nanobiomaterials
Artificial extracellular matrix embryonic stem cell cultures frontier of nanobiomaterials
2010/2/28
Nanobiomaterials can play a central role in regenerative medicine and tissue engineering by facilitating cellular behavior and function, such as those where extracellular matrices (ECMs) direct embryo...
Efficiency of two non-destructive testing methods to detect defects in polymeric materials
Efficiency testing methods detect polymeric materials
2010/2/12
There are many different non-destructive testing techniques which can be applied to polymer materials, but so far, ultrasounds has occupied one of the leading places [1-4]. Nowadays, also utilization ...
Sugar microarray via click chemistry: molecular recognition with lectins and amyloid β(1–42)
self-assembled monolayer saccharide microarray
2009/6/30
Sugar microarrays were fabricated on various substrates via click chemistry. Acetylene-terminated substrates were prepared by forming self-assembled monolayers (SAMs) on a gold substrate with alkyl-di...
Immunochromatographic assay using gold nanoparticles for measuring salivary secretory IgA in dogs as a stress marker
immunochromatographic assay secretory immunoglobulin A (sIgA) nonionic surfactant
2009/6/30
The concentration of salivary secretory immunoglobulin A (sIgA) is a well-known stress marker for humans. The concentration of salivary sIgA in dogs has also been reported as a useful stress marker. I...
SNP genotyping by DNA photoligation: application to SNP detection of genes from food crops
biosensors DNA recognition ligation reactions
2009/6/30
We describe a simple and inexpensive single-nucleotide polymorphism (SNP) typing method, using DNA photoligation with 5-carboxyvinyl-2'-deoxyuridine and two fluorophores. This SNP-typing method facili...
嗜硫性顺磁微球的制备及对人血清抗体的分离
有机高分子材料 磁性微球 微悬浮聚合
2009/6/4
用微悬浮共聚合技术实现了二乙烯基苯与醋酸乙烯酯单体对亲油性Fe3O4纳米粒子的充分包裹, 制备出超顺磁性的聚合物微球, 研究了分离人血清抗体的特异性.结果表明, 聚合物微球的粒径为0.6--20μm, 磁性微球的含量高于24%,饱和磁化强度为16.7 emu/g. 通过充分的水解反应, 在微球表面形成丰富的羟基,并通过Michael加成反应, 在磁性微球表面偶联嗜硫基团(乙烯基砜和巯基乙醇).用嗜...
聚碳硅烷纤维在环己烯气氛中的不熔化处理
聚碳硅烷纤维 环己烯气氛 不熔化处理
2009/2/11
将聚碳硅烷(PCS)纤维在环己烯气氛中进行化学气相交联不熔化处理,其氧含量比空气不熔化处理大大降低,组成和结构也发生了变化,气体副产物中存在环己烷和小分子硅烷.在环己烯气氛中,随着温度的升高,PCS分子的Si-H键的反应程度逐渐提高,纤维的凝胶含量逐渐增大.环己烯受热引发PCS分子中的Si-H和Si-CH3键断裂生成Si自由基和Si-CH2自由基,促进PCS分子间形成Si-CH2-Si交联结构;同...
聚酰亚胺薄膜的高场电导特性
聚酰亚胺薄膜 电导电视 有机高分子材料
2009/2/11
研究了Dupont原始及耐电晕聚酰亚胺薄膜在10 kV/mm、20 kV/mm电场下电晕老化8 h前后和在不同温度下的高场电导特性.结果表明,原始及耐电晕聚酰亚胺薄膜老化前的电老化阈值分别为35 kV/mm和45 kV/mm,并随着老化电场的增加而下降.随着温度的升高,原始聚酰亚胺薄膜的电老化阈值明显增加,而耐电晕薄膜的电老化阈值略有下降.耐电晕薄膜的电导电流比原始薄膜约大一个数量级.根据空间电荷...
酞菁类纳米有机光导材料的研究（图）
酞菁类 纳米有机 光导材料
2009/2/2
纳米有机光电材料有着十分诱人的应用前景，但有机纳米材料是否存在纳米效应问题在目前国际材料科学界尚未取得共识，因而本项目开展酞菁类纳米有机光导材料的研究，具有重要的理论意义和实用价值。
聚乳酸可生物降解塑料
聚乳酸 生物降解 塑料
2008/12/10
由工业级通过精制得到的L－乳酸脱水二聚得到L-丙交酯，精制后聚合得到聚乳酸。聚乳酸本身属脂肪族聚酯，具有通用高分子材料的基本特性，如可以采用注塑、挤出等不同方式进行加工，可以制成纤维、膜、棒、块、板材等用于纺织、包装、容器等各种民用、工业应用和医疗特殊应用领域。本技术制备的聚乳酸与日本岛津公司的产品性能相比，技术指标和力学性能基本相同，或超过国外产品的性能指标。
高性能化高分子合金系列新材料的研究与开发是国家“八五”和“九五”重大科技攻关项目，主要利用高聚物的官能化及合金化技术，研制出用于生产汽车内饰件高档汽车保险杠、水箱面罩等汽车件和各类家电产品的耐热部件及壳体的理想材料-ABS/PC系列合金专用料，用于选用HCFC-141B作为发泡剂的“无氟冰箱”的门饰条及内衬件的具有耐HCFC-141B腐蚀功能的改性ABS树脂，用于所车输油管及气制管的改性，PA11...
KG851高分子含油合金系列材料
含油合金 工程塑料
2008/12/10
本课题以已内酰胺为主原料，添加相关配合剂，经高温溶化、浇铸成型、恒温、出模、机加等工序而制得KG851高分子含油合金系列材料。配方设计中，我们采用了优选法、同时优选配方组合进行印证，在此基础上，将主体高聚物等，加入10%左右的减摩剂，2%的增水剂和活性剂以及5～20%KG型增强材料。G851高分子含油合金系列材料进入现场应用已有多年的时间，在矿山、钢铁、机械等十几个行业已表现其明显优点及性能优势。...
Preparation and characterization of self-cleaning stable superhydrophobic linear low-density polyethylene
superhydrophobic linear low-density polythene self-cleaning contact angle sliding angle
2008/12/10
Porous superhydrophobic linear low-density polyethylene (LLDPE) surface was prepared by a
simple method. Its water contact angle and sliding angle were 153±2 and 10, respectively.
After contaminat...