In situs polymerization and compatibilization blending method with microporous foaming polymer as matrix

An in-situ polymerization and polymer technology, applied in the field of in-situ polymerization and compatibilizing blending, can solve the problems of unstable performance, poor thermodynamic compatibility, and difficulty in achieving compatibility.

Inactive Publication Date: 2006-08-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, it is often contrary to expectations. Many polymer blend combinations with complementary properties have poor thermodynamic compatibility, so that it is difficult to achieve engineering compatibility despite the use of strong mixing measures, especially with the co- The prolongation of the time after the mixing operation is completed, the phase separation phenomenon will become more serious, resulting in unstable performance

Method used

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  • In situs polymerization and compatibilization blending method with microporous foaming polymer as matrix
  • In situs polymerization and compatibilization blending method with microporous foaming polymer as matrix
  • In situs polymerization and compatibilization blending method with microporous foaming polymer as matrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Grafting reaction: 3 grams of isotactic polypropylene particles and monomer TMI with active functional groups

[0038] (3-isopropenyl-a, a-dimethylbenzene isocyanate), placed in supercritical carbon dioxide fluid under the effect of 0.036g gram initiator DCP (dicumyl peroxide), 0.85ml styrene additive 80 Swell at ℃ for 3 hours, then raise the temperature to 130 ℃, release the pressure and cool after 4 hours of reaction, wash and purify to obtain the grafted product.

[0039] (2) Supercritical carbon dioxide foaming and assisted permeation: put 2 grams of grafted products in supercritical carbon dioxide fluid, control the temperature at 157°C, pressure at 15Mpa, swell for about 30 minutes, and quickly release the pressure to obtain foamed particles ;

[0040] Put these 2 grams of particles and 4 grams of Nylon 6 monomer - yl lactam, together with 0.24 g of sodium caprolactam catalyst in a supercritical carbon dioxide fluid, the temperature is controlled at 80 ° C, t...

Embodiment 2

[0046] (1) Grafting reaction: 3 grams of isotactic polypropylene particles and monomer TMI (3-isopropenyl-a, a-dimethylbenzene isocyanate) with active functional groups, in 0.036 g of initiator DCP (over Dicumyl oxide), 0.45ml of styrene additive, placed in supercritical carbon dioxide fluid to swell at 80°C for 3 hours, then heated up to 130°C, reacted for 4 hours, released the pressure and cooled, washed and purified to obtain the branch product.

[0047] (2) Supercritical carbon dioxide foaming and assisted permeation: put 2 grams of grafted products in supercritical carbon dioxide fluid, control the temperature at 157°C, pressure at 15Mpa, swell for about 30 minutes, and quickly release the pressure to obtain foamed particles ;

[0048] Put this 2 grams of particles and 4 grams of Nylon 6 monomer - the base lactam, together with 0.24 g of sodium caprolactam catalyst and 0.04 gram of DCP (dicumyl peroxide) activator, place a sealed container with supercritical carbon dioxi...

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Abstract

An in situ polymerization and compatibilization blending method with micro-porous foamed polymer as matrix is carried out by modifying for the chosen polymer matrix, grafting active polymerized group on polymer by supercritical technology, taking it as compatilizer or active group for initiating reaction, supercritical foaming for modified polymer, cooperating to permeate the monomer of another polymer, and in situ polymerizing to obtain the final product. The size of granule is controlled by size of foaming aperture. It has excellent bond with other materials and effective control for dispersion-phase particle size.

Description

technical field [0001] The invention relates to an in-situ polymerization and compatibilization blending method using a microcellular foamed polymer as a matrix, in particular to an in-situ polymerization and compatibilization blending method using supercritical carbon dioxide to prepare particles whose size is controlled by the foaming pore size polymer blends. Background technique [0002] With the development of modern science and technology, people's requirements for the performance of polymer materials are becoming more and more diversified, and the application of polymer materials is also becoming more and more diversified. It is often difficult for a single homopolymer or a simple copolymer to meet various requirements. [0003] In order to obtain polymer materials with certain special properties or good comprehensive properties, people have done a lot of work. In recent decades, the focus of research and development of polymer materials has shifted from synthesizing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/02C08L51/00
Inventor 刘涛马立强赵玲曹贵平许志美袁渭康
Owner CHINA PETROLEUM & CHEM CORP
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