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Silicone materials

A silicone and organic technology, applied in the direction of additive processing, manufacturing tools, coatings, etc., can solve the problems of no mechanical properties, fragile, no elastic properties, etc.

Active Publication Date: 2020-10-23
ELKEM SILICONES FRANCE SAS +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting material is hard but brittle and has neither elastic nor mechanical properties

Method used

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  • Silicone materials
  • Silicone materials
  • Silicone materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0121] In the following examples given by way of illustration, see the following definitions:

[0122] dynamic viscosity :

[0123] The dynamic viscosity of the product is measured by means of a rheometer (TA-DHRII) with applied stress. The measurements were performed in flow mode using a cone / plate geometry with a diameter of 40 mm and a cut-off of 52 μm. Viscosity depends on shear rate (0.01-100s at 25°C -1 ) to record.

[0124] Rheology :

[0125] Rheological analysis was carried out at 25° C. by means of a rheometer (TA-DHRII) with applied stress using plate / plate geometry (40 mm in diameter). Frequency sweeps were recorded in the linear viscoelastic domain of the product from 100-0.01 Hz.

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Abstract

Silicone material obtained by a reaction between: at least one organopolysiloxane (A) that has a molar mass of less than 70000 g / mol, preferably less than 50000 g / mol, and contains siloxyl units I.1 and I.2; and at least one organic compound (B) carrying at least two carboxylic acid groups and having no unsaturation.

Description

technical field [0001] The present invention relates to organosilicon material, its preparation method and its application. Background technique [0002] Multiple routes to the formation of supramolecular silicone materials based on ionic interactions have been described. A first approach consists in using polyorganosiloxanes containing amine groups with unsaturated acid compounds (WO2016102498). The resulting material has good elastic properties but low fracture stress. A second approach (Feng et al., Journal of Polymer Science, Part A: Polymer chemistry 2017, 55, 903-911) consists in contacting polyorganosiloxanes bearing amine groups with polyfunctional acids. The resulting material is hard but brittle and has neither elastic nor mechanical properties. [0003] It would therefore be beneficial to provide silicone materials that have both good mechanical and elastic properties. This material can have a variety of uses. It would also be beneficial to provide such mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/08C09D7/61C09D7/63B33Y70/10
CPCB33Y70/00C09D183/08C08G77/26C08G77/18C08K5/092C08L83/04C08L83/06C08L83/08C08K3/36C08K3/26C09D5/1675B29C64/314B05D1/00
Inventor F·加纳肖德D·波尔蒂尼亚德阿尔梅达E·弗勒里G·迪奥A·热内E·普热
Owner ELKEM SILICONES FRANCE SAS