摘要:
The present invention relates to pulverulent compositions based on carbon nanotubes which exhibit an excellent dispersibility in polymer materials and can advantageously be used as reinforcing agents and/or modifiers of conducting and/or thermal properties; they can be easily incorporated in polymer matrices in the masterblend form.
摘要:
A viscoelastic drilling fluid for drilling in underground rock formations, comprising (a) an aqueous and/or organic liquid base, (b) at least one weighting agent, in particulate form, with a mass per unit volume of at least 2 g/cm3, preferably at least 4 g/cm3, in suspension in said liquid base, and (c) carbon nanotubes with a mean diameter of between 10 and 30 nm and a specific surface in excess of 200 m2/g, preferably of between 200 m2/g and 250 m2/g and a drilling method using such a fluid.
摘要翻译:一种用于在地下岩层中钻孔的粘弹性钻井液,包括(a)水性和/或有机液体基质,(b)至少一种颗粒形式的增重剂,每单位体积的质量至少为2g / cm 3 ,优选至少4g / cm 3悬浮在所述液体基质中,和(c)平均直径为10至30nm,比表面积超过200m 2 / g,优选为200m 2 / g的碳纳米管, g和250m 2 / g,以及使用这种流体的钻孔方法。
摘要:
The present invention relates to a viscoelastic drilling fluid for drilling in underground rock formations, comprising (a) an aqueous and/or organic liquid base, (b) at least one weighting agent, in particulate form, with a mass per unit volume of at least 2 g/cm3, preferably at least 4 g/cm3, in suspension in said liquid base, and (c) carbon nanotubes with a mean diameter of between 10 and 30 nm and a specific surface in excess of 200 m2/g, preferably of between 200 m2/g and 250 m2/g. It also relates to a drilling method using such a fluid.
摘要翻译:本发明涉及一种用于在地下岩层中钻井的粘弹性钻井液,包括(a)水性和/或有机液体基质,(b)至少一种颗粒形式的增重剂,每单位体积的 至少2g / cm 3,优选至少4g / cm 3悬浮在所述液体基质中,和(c)平均直径为10至30nm且比表面积超过200m 2 / g的碳纳米管,优选 为200m 2 / g至250m 2 / g。 它还涉及使用这种流体的钻孔方法。
摘要:
The present invention relates to the use of poly acrylic and/or methacrylic macroinitiators in the free radical addition reaction of vinyl aromatic monomers to improve the properties of the resulting copolymer and/or composite. More particularly, the present invention relates to the production of poly acrylic and/or poly methacrylic macroinitiators having nitroxyl end groups. Using such macroinitiators in the free radical addition reaction of vinyl aromatics such as polystyrene compatibilizes the acrylic monomer in the vinyl aromatic matrix thereby improving the properties of the resulting polymer.
摘要:
The invention relates to the use of a composition for producing parts by filament winding, which comprises at least one type of resin formulation containing at least one type of thermosetting resin, at least one type of miscible rheology regulating agent which provides the composition with a viscosity difference whose factor is equal to or greater than 100 between a high-temperature state at a C1 shear rate and a low temperature state at a C2 shear rate, wherein the difference in temperature between the high-temperature and the low-temperature state is equal to or greater than 30° C., the C1 shear rate is greater than the C2 shear rate and the composition exhibits a Newtonian behavior in the high-temperature state thereof.
摘要:
The present invention relates to the use of poly acrylic and/or methacrylic macroinitiators in the free radical addition reaction of vinyl aromatic monomers to improve the properties of the resulting copolymer and/or composite. More particularly, the present invention relates to the production of poly acrylic and/or poly methacrylic macroinitiators having nitroxyl end groups. Using such macroinitiators in the free radical addition reaction of vinyl aromatics such as polystyrene compatibilizes the acrylic monomer in the vinyl aromatic matrix thereby improving the properties of the resulting polymer.