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A surface modification method of antimony trioxide for flame-retardant masterbatch

A technology of antimony trioxide and flame retardant master batch is applied in the field of preparation of active antimony trioxide, which can solve the problems of poor antimony trioxide flame retardant synergy, poor polymer molecular affinity, difficult to disperse uniformly, etc. Achieve the effect of improving poor thermal stability, shortening modification time, and enhancing fluidity

Active Publication Date: 2021-03-19
广西华锑科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a surface modification method of antimony trioxide specially used for flame-retardant masterbatches to solve the problem of high surface energy of antimony trioxide, easy agglomeration, hydrophilic and oleophobic powder surface, and lack of affinity with lipophilic polymer molecules. Good, difficult to disperse uniformly in polymers, and poor flame retardant synergy of modified antimony trioxide in the prior art

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  • A surface modification method of antimony trioxide for flame-retardant masterbatch

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Effect test

Embodiment 1

[0028] like figure 1 As shown, a surface modification method of antimony trioxide special for flame retardant masterbatch, comprising the following steps:

[0029] S1. Weigh 4 parts of white graphite powder, 3 parts of chromium oxide powder, 50 parts of antimony trioxide, 3 parts of cetyltrimethylammonium chloride, and ethylene dioleamide according to the weight and number ratio of each raw material. 6 parts, palm alcohol 1 part, absolute ethanol 95 parts;

[0030] S2. Mix white graphite powder, chromium oxide powder, cetyltrimethylammonium chloride, ethylene dioleamide, palmitic alcohol, and absolute ethanol, and after the ultrasonic dispersion time is 35min at an ultrasonic frequency of 55Hz, After stirring at 40°C for 25 minutes, the mixed material A was obtained;

[0031] S3. Put the antimony trioxide that has been dried at 50°C for 2 hours into a high-efficiency ball mill with a rotation speed of 750rpm for 5 minutes, then add the mixed material A and ball mill for 7 ho...

Embodiment 2

[0033] like figure 1 As shown, a surface modification method of antimony trioxide special for flame retardant masterbatch, comprising the following steps:

[0034] S1. Weigh 2 parts of white graphite powder, 5 parts of chromium oxide powder, 55 parts of antimony trioxide, 4 parts of hexadecyltrimethylammonium chloride, and ethylene dioleamide according to the weight and number ratio of each raw material. 4 parts, palm alcohol 1.5 parts, absolute ethanol 98 parts;

[0035] S2. Mix white graphite powder, chromium oxide powder, cetyltrimethylammonium chloride, ethylene dioleamide, palmitic alcohol, and absolute ethanol, and after the ultrasonic dispersion time is 30min at an ultrasonic frequency of 60Hz, After stirring at 45°C for 20 minutes, the mixed material A was obtained;

[0036]S3. Put the antimony trioxide that has been dried at 55°C for 2 hours into a high-efficiency ball mill with a rotation speed of 600rpm for 8 minutes, then add the mixed material A and ball mill fo...

Embodiment 3

[0038] like figure 1 As shown, a surface modification method of antimony trioxide special for flame retardant masterbatch, comprising the following steps:

[0039] S1. Weigh 4 parts of white graphite powder, 4 parts of chromium oxide powder, 60 parts of antimony trioxide, 3.5 parts of cetyltrimethylammonium chloride, and ethylene dioleamide according to the weight and number ratio of each raw material. 5 parts, palm alcohol 2 parts, absolute ethanol 90 parts;

[0040] S2. Mix white graphite powder, chromium oxide powder, cetyltrimethylammonium chloride, ethylene dioleamide, palmitic alcohol, and absolute ethanol, and after the ultrasonic dispersion time is 25min at an ultrasonic frequency of 65Hz, After stirring at 50°C for 30 minutes, the mixed material A was obtained;

[0041] S3. Put the antimony trioxide that has been dried at 45°C for 3 hours into a high-efficiency ball mill with a rotation speed of 800rpm for 6 minutes, then add the mixed material A and ball mill for 6...

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Abstract

The invention discloses a surface modification method of antimonous oxide special for flame-retardant masterbatch, and belongs to the field of preparation of active antimonous oxide. The preparation method comprises the following steps: using absolute ethyl alcohol as a solvent, preparing a solution by taking white graphite powder, chromium oxide powder, hexadecyl trimethyl ammonium chloride, ethylene dioleoyl amide and palmitol as solutes, adding antimony trioxide powder into an efficient ball mill for 5-8 minutes, adding the solution, filtering after ball milling, drying in a vacuum drying oven, and crushing and grading again to obtain the modified antimony trioxide. Data of embodiments 1-3 and contrast 5 show that the oxygen index of a sample is increased by at least 28.6%, and the smoke density grade is reduced by at least 25%. The flame-retardant synergistic effect of the modified antimony trioxide is improved, so that the use amount of the antimony trioxide in the flame-retardantfield can be reduced, and resources are saved.

Description

【Technical field】 [0001] The invention belongs to the field of preparation of active antimony trioxide, and in particular relates to a method for surface modification of antimony trioxide specially used for flame-retardant masterbatches. 【Background technique】 [0002] With the advancement of science and technology and the improvement of people's living standards, polymer materials, especially synthetic polymers: such as plastics and rubber, are becoming more and more important in people's lives, and their applications are showing a growing trend year by year. However, most organic polymer materials have different degrees of flammability in the air. In order to realize their applications in many industries such as military, aerospace, transportation, electric power and civil use, their flame retardant modification has become a new topic. At present, the ideal method of flame retardant modification of plastics is often to improve the fire resistance of plastics by adding prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/02C08K9/12C08K3/38C08K3/22C08K5/19C08K5/20C08K5/05C08K13/06
CPCC08K3/22C08K3/2279C08K3/38C08K5/05C08K5/19C08K5/20C08K9/02C08K9/12C08K13/06C08K2003/2251C08K2003/385
Inventor 雷圆王涛戴新樊勇生肖丽霞
Owner 广西华锑科技有限公司
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