Explosion-proof material master batch with good low-temperature resistance and barrier property as well as preparation method and application thereof

A technology of explosion-proof material and barrier performance, which is applied in the field of explosion-proof material masterbatch and preparation, which can solve the problems that affect the explosion-suppression performance, the volume occupancy rate of explosion-suppression materials, the difficulty of improving the suppression performance, and the blockage of oil pipelines, so as to ensure the feasibility of preparation and implementation and production efficiency, excellent compatibility, and improved performance

Active Publication Date: 2021-02-19
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal mesh explosion suppression materials have the following disadvantages: (1) It is difficult to improve the suppression performance of explosion suppression pressure and flame propagation velocity; (2) The transportation and use process requires support structures, and the stacking height is limited; (3) Filling Explosion suppression materials require manual operation and auxiliary support frames; (4) It is difficult to clean the metal mesh after scaling or clogging the mesh during use; (5) Anti-pressure is required during the production process and when stacked and stored, otherwise the mesh is easily deformed , affecting the explosion suppression performance and the volume occupancy of explosion suppression materials; (6) It is difficult to fill containers with small volume spaces; (7) When used for filling in oil storage tanks or oil pipelines, it is easy to oxidize and / or age It becomes brittle and then forms fragments, which will drop debris when subjected to vibration, pollute the oil or block the oil pipeline; (8) Aluminum alloy and aluminum-magnesium alloy mesh explosion-suppressing materials are easily deformed under flame pressure, Affect explosion suppression performance
The glass transition temperature of the polypropylene-based non-metallic explosion-proof material is around -20°C, therefore, it greatly limits its applicable explosion-suppression places

Method used

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  • Explosion-proof material master batch with good low-temperature resistance and barrier property as well as preparation method and application thereof
  • Explosion-proof material master batch with good low-temperature resistance and barrier property as well as preparation method and application thereof
  • Explosion-proof material master batch with good low-temperature resistance and barrier property as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] According to the method of the present invention, a masterbatch of explosion-proof material with good low-temperature resistance and barrier performance is prepared, and the operation steps are as follows:

[0035] (1) Preparation of polyolefin modifier

[0036]a. Weigh 14.8g of phthalic anhydride and dissolve it in 50ml of DMF, mix uniformly at 70°C in a nitrogen atmosphere, then slowly add 20ml of ethylene glycol and 8ml of epichlorohydrin equal to the molar weight of phthalic anhydride to the above mixture, Under a nitrogen atmosphere, react in an oil bath at 100°C for 10 hours, cool down to room temperature, wash the precipitate with excess deionized water for 5 times, and dry it in vacuum at 75°C for 24 hours to obtain a light brown precipitate, which is the linear polymer I (PEP);

[0037] b. Weigh the linear polymer I (PEP) in step (a), dissolve it in DMF and put it into a three-necked flask, slowly add 0.1 g of methylimidazole dropwise under a nitrogen atmospher...

Embodiment 2

[0048] According to the method of the present invention, a masterbatch of explosion-proof material with good low-temperature resistance and barrier performance is prepared, and the operation steps are as follows:

[0049] (1) Preparation of polyolefin modifier

[0050] a. Weigh 13.8g of phthalic anhydride and dissolve it in 40ml of DMF, mix uniformly at 65°C in a nitrogen atmosphere, then slowly add 20ml of ethylene glycol and 8ml of epichlorohydrin equal to the molar weight of phthalic anhydride to the above mixture, Under nitrogen atmosphere, react in an oil bath at 110°C for 9 hours, cool down to room temperature, wash the precipitate with excess deionized water for 3 times, and dry it in vacuum at 75°C for 24 hours to obtain a light brown precipitate, which is the linear polymer I (PEP);

[0051] b. Weigh the linear polymer I (PEP) in step (a), dissolve it in DMF and put it into a three-necked flask, slowly add 0.25 g of methylimidazole dropwise under a nitrogen atmosphere...

Embodiment 3

[0062] According to the method of the present invention, a masterbatch of explosion-proof material with good low-temperature resistance and barrier performance is prepared, and the operation steps are as follows:

[0063] (1) Preparation of polyolefin modifier

[0064] a. Weigh 15.3g of phthalic anhydride and dissolve it in 50ml of DMF, mix uniformly at 70°C in a nitrogen atmosphere, then slowly add 25ml of ethylene glycol and 10ml of epichlorohydrin equal to the molar weight of phthalic anhydride to the above mixture, Under nitrogen atmosphere, react in an oil bath at 120°C for 8 hours, cool down to room temperature, wash the precipitate with excess deionized water 4 times, and dry it in vacuum at 75°C for 24 hours to obtain a light brown precipitate, which is the linear polymer I (PEP);

[0065] b. Weigh the linear polymer I (PEP) in step (a), dissolve it in DMF and put it into a three-necked flask, slowly add 0.5 g of methylimidazole dropwise under a nitrogen atmosphere, an...

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Abstract

The invention discloses an explosion-proof material master batch with good low-temperature resistance and barrier property, a preparation method and an application thereof, the explosion-proof material master batch with good low-temperature resistance and barrier property has good low-temperature impact resistance, good fluidity and extremely low glass transition temperature, according to different application scenarios, explosion-proof products in various shapes can be formed by injection molding or extrusion, so that the use places of the explosion-proof material are greatly expanded; the preparation method of the explosion-proof material master batch with good low-temperature resistance and barrier property disclosed by the invention is simple in operation steps, and the preparation implementation feasibility and production efficiency of the explosion-proof material master batch are ensured.

Description

technical field [0001] The invention relates to the technical field of chemical explosion protection, in particular to a masterbatch of an explosion-proof material with good low-temperature resistance and barrier performance, a preparation method and an application thereof. Background technique [0002] With the continuous improvement of production and life and the rapid development of the economic level, the production and use of chemicals play an increasingly important role in both industrial development and people's lives. However, hazardous chemicals are prone to explosion during storage and transportation, and the loss of personnel and property caused by the explosion of hazardous chemicals is immeasurable. Therefore, during the storage or transportation of hazardous chemicals, it is necessary to use barrier explosion-proof technology to suppress the occurrence of explosion accidents. [0003] Barrier explosion-proof technology is to install metal or non-metallic barri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/16C08L67/00C08L23/06C08L101/00C08K5/3492C08J3/22C08L79/08C08G63/682C08G63/91
CPCC08J3/226C08G63/682C08G63/91C08J2423/12C08J2423/16C08J2467/00C08J2423/06C08J2400/202C08K5/34928C08J2479/08Y02E60/10
Inventor 陶宇夏艳平王亮姚培李树白
Owner CHANGZHOU VOCATIONAL INST OF ENG
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