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Preparation method of inorganic flame retardant for rubber and plastics

A technology of inorganic flame retardants and plastics, applied in the field of flame retardants, can solve problems such as the reduction of rubber strength and tensile properties, and achieve the effect of reducing strength

Inactive Publication Date: 2015-08-19
汕头市源兴织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of the reduction of rubber strength and tensile properties caused by conventional inorganic flame retardants after they are applied to rubber plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 2, adding the coupling agent modified aluminum hydroxide micropowder into 300g of water, then adding 100g of acrylamide, 5g of anionic monomer allyl sulfonate, 2g of organosilicon monomer monomethyltriethoxysilane, Magnesium hydroxide powder 5g and initiator azobisisobutylamidine hydrochloride 2g, in N 2 Under protection, the temperature was raised to 60°C for reaction, and after the completion of the reaction, the temperature was lowered, and after filtration, the filter cake was washed with ethanol and dried to obtain coated modified aluminum hydroxide micropowder;

[0021] Step 3: Mix the coated modified aluminum hydroxide fine powder, 10 g of zinc terephthalate, and 5 g of antimony trioxide evenly.

[0022] Example 2

Embodiment 2

[0024] Step 2, adding the coupling agent modified aluminum hydroxide micropowder into 500g of water, then adding 200g of acrylamide, 8g of anionic monomer allyl sulfonate, 4g of organosilicon monomer monomethyltriethoxysilane, Magnesium hydroxide powder 10g and initiator azobisisobutylamidine hydrochloride 4g, in N 2 Under protection, the temperature was raised to 70°C for reaction, and after the completion of the reaction, the temperature was lowered, and after filtration, the filter cake was washed with ethanol and dried to obtain coated modified aluminum hydroxide micropowder;

[0025] Step 3: Mix the coated modified aluminum hydroxide fine powder, 15g of zinc terephthalate, and 10g of antimony trioxide evenly.

[0026] Example 3

Embodiment 3

[0028] Step 2: Add the coupling agent modified aluminum hydroxide micropowder into 400g of water, then add 150g of acrylamide, 6g of anionic monomer allyl sulfonate, 3g of organosilicon monomer monomethyltriethoxysilane, Magnesium hydroxide powder 6g and initiator azobisisobutylamidine hydrochloride 3g, in N 2 Under protection, the temperature was raised to 65°C for reaction, and after the completion of the reaction, the temperature was lowered, and after filtration, the filter cake was washed with ethanol and dried to obtain coated modified aluminum hydroxide micropowder;

[0029] Step 3: Mix the coated modified aluminum hydroxide fine powder, 12g of zinc terephthalate, and 7g of antimony trioxide evenly.

[0030] Comparative example 1

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PUM

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Abstract

The invention discloses a preparation method of an inorganic flame retardant for rubber and plastics, belonging to the technical field of flame retardant. The preparation method comprises the following steps of: mixing aluminum hydroxide micro powder and a cationic monomer with an organic solvent, adding a silane coupling agent KH-550 under the protection of N2; heating for reaction, cooling and filtering after the reaction is finished, washing a filter cake with ethanol and drying, thus obtaining the coupling agent modified aluminum hydroxide micro powder; adding the coupling agent modified aluminum hydroxide micro powder into water, then adding acrylamide, anionic monomers, an organic silicon monomer, magnesium hydroxide powder and an initiator; heating for reaction under the protection of N2; cooling and filtering after the reaction is finished, washing the filter cake with ethanol and drying, thus obtaining the coating modified aluminum hydroxide micro powder; and uniformly mixing the coating modified aluminum hydroxide micro powder, zinc terephthalate and antimonous oxide, thus obtaining the inorganic flame retardant.

Description

technical field [0001] The invention discloses a preparation method of an inorganic flame retardant for rubber and plastics, and belongs to the technical field of flame retardants. Background technique [0002] The combustion of rubber has something in common with the combustion of other materials, but it also has special features. As a polymer material, rubber has a complicated combustion process, and its combustion temperature is higher than that of ordinary substances. After rubber catches fire, its burning process can be divided into three stages usually. (1) Thermal decomposition: After reaching the burning point (different rubber types have different burning points), such as NR is 620 ° C ~ 670 ° C), it first begins to soften and melt, and decomposes into low molecular substances. No open flames are visible at this stage, which can be considered a prelude to combustion. (2) Combustion: The thermal decomposition product reacts violently with the oxygen in the atmo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/10C08K9/06C08K3/22C08K5/098C08L9/06
Inventor 傅兴琴
Owner 汕头市源兴织造有限公司