Antimony oxide compound flame-retardant PVC soft composite material and preparation method thereof

A composite material, antimony oxide technology, applied in the field of flame retardant materials, can solve the problems of limited improvement of smoke suppression and environmental protection performance, only solve the problems of flame retardancy, etc., to reduce human injury, eliminate dust, and achieve the effect of soft and smooth texture

Active Publication Date: 2015-11-25
广西华锑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned PVC flame retardant materials are rarely related to antimony-based flame retardants, and toxic and harmful raw materials such as barium salts, lead salts, or cyanide salts are generally used, which are lacking in taking into account the comprehensive benefits of flame retardant, smoke suppression, and environmental protection. The prepared materials are often Only the flame retardancy is solved, and the improvement in smoke suppression and environmental performance is limited

Method used

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  • Antimony oxide compound flame-retardant PVC soft composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh respectively according to the following proportions: 100 parts of PVC (SG-3), 65 parts of plasticizer, 10 parts of antimony trioxide, 9 parts of ammonium molybdate, 7 parts of montmorillonite, 7 parts of calcium zinc stabilizer, and 8 parts of EVA , 2 parts of epoxy soybean oil, 6 parts of coupling agent, 3 parts of dispersant.

[0031] Antimony oxide composite flame-retardant PVC soft composite material, the preparation method of which comprises the following steps:

[0032] S1. Modification: modify the surface of antimony trioxide with a coupling agent at a modification temperature of 140° C., a stirring rate of 4000 rpm / min, and a stirring time of 3.5 hours to obtain modified antimony trioxide.

[0033] S2, mixing: place the modified antimony trioxide and PVC (SG-3), plasticizer, ammonium molybdate, montmorillonite, calcium zinc stabilizer, EVA, epoxy soybean oil, and dispersant prepared in S1 Intermittent graded mixing was carried out in the frequency convers...

Embodiment 2

[0037] Weigh respectively according to the following proportions: 100 parts of PVC (SG-3), 55 parts of plasticizer, 5 parts of antimony trioxide, 4 parts of ammonium molybdate, 3 parts of montmorillonite, 3 parts of calcium zinc stabilizer, 3 parts of EVA , 0.5 parts of epoxidized soybean oil, 3 parts of coupling agent, and 1 part of dispersant.

[0038] Antimony oxide composite flame-retardant PVC soft composite material, the preparation method of which comprises the following steps:

[0039] S1. Modification: modify the surface of antimony trioxide with a coupling agent at a modification temperature of 110° C., a stirring rate of 2000 rpm / min, and a stirring time of 4.5 hours to obtain modified antimony trioxide.

[0040] S2, mixing: place the modified antimony trioxide and PVC (SG-3), plasticizer, ammonium molybdate, montmorillonite, calcium zinc stabilizer, EVA, epoxy soybean oil, and dispersant prepared in S1 Intermittent graded mixing was carried out in the frequency co...

Embodiment 3

[0044] Weigh respectively according to the following proportions: 100 parts of PPVC (SG-3), 60 parts of plasticizer, 8 parts of antimony trioxide, 7 parts of ammonium molybdate, 5 parts of montmorillonite, 5 parts of calcium zinc stabilizer, and 6 parts of EVA , 1.2 parts of epoxidized soybean oil, 4 parts of coupling agent, and 2 parts of dispersant.

[0045] Antimony oxide composite flame-retardant PVC soft composite material, the preparation method of which comprises the following steps:

[0046] S1. Modification: modify the surface of antimony trioxide with a coupling agent at a modification temperature of 125° C., a stirring rate of 3000 rpm / min, and a stirring time of 4 hours to obtain modified antimony trioxide.

[0047]S2, mixing: place the modified antimony trioxide and PVC (SG-3), plasticizer, ammonium molybdate, montmorillonite, calcium zinc stabilizer, EVA, epoxy soybean oil, and dispersant prepared in S1 Intermittent graded mixing was carried out in the frequency...

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Abstract

The present invention discloses an antimony oxide compound flame-retardant PVC soft composite material and a preparation method thereof. The composite material includes the following materials: PVC (SG-3), a plasticizer, antimony trioxide, ammonium molybdate, montmorillonite, a calcium zinc stabilizer, EVA, epoxy soybean oil, a coupling agent and a dispersing agent. The preparation process of the product is as below: modifying antimony trioxide; mixing the modified antimony trioxide with ammonium molybdate, montmorillonite and EVA; screening the mixture by a vibrating centrifugal screening machine; and drying the screened powder and conducting waterproof packaging. The product of the invention has efficient flame retardant and smoke suppression performance, limiting oxygen index up to 31.6%, elongation at break of 210% and Shore hardness as low as 17, can be used as a direct added raw material for PVC product, or be added as a modification additive, and can also be used as soft fireproof materials, such as PVC leather and protective decoration materials.

Description

【Technical field】 [0001] The invention belongs to the technical field of flame retardant materials, and in particular relates to an antimony oxide compound flame retardant PVC soft composite material and a preparation method thereof. 【Background technique】 [0002] PVC is a polar non-crystalline polymer with a strong force between molecules. It is a shear-sensitive polymer that is easily carbonized during processing and requires the addition of more organic processing aids. With the increase of the addition of organic processing aids, the flame retardancy of PVC gradually decreases, and the amount of smoke increases accordingly, which has a great impact on the fire resistance, safety and environmental protection of the material. [0003] At present, the flame retardant of PVC is often flame retardant by directly adding inorganic flame retardants such as magnesium hydroxide, aluminum hydroxide, antimony oxide, etc., but the flame retardant effect is poor, the amount of smoke ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K13/02C08K3/22C08K3/24C08K3/34C08K3/00
Inventor 王涛戴新梁小良韦华马柳军
Owner 广西华锑科技有限公司
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