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Preparation method of superacid flame-retardant PET resin master batch

A technology of super acid and resin, applied in the field of flame retardant plastic preparation, can solve problems such as high toxicity and poor binding performance, and achieve the effects of low cost, good flame retardant effect and strong catalytic ability

Active Publication Date: 2018-12-11
浙江龙泉泓业新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing flame retardant masterbatches, organic flame retardants are highly toxic, and inorganic flame retardants have technical defects of poor bonding performance with the resin matrix.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a superacid flame-retardant PET resin masterbatch, comprising the following steps:

[0019] (1) In parts by weight, add 48 parts of talcum powder to 240 parts of water, mix and stir to obtain a suspension of talc powder, then add 75 parts of ammonia water and 5 parts of sodium polyacrylate to it, and heat the mixture to 88 ℃, after heat preservation treatment for 2 hours, filter and dry the filter cake to obtain modified talcum powder;

[0020] (2) In parts by weight, add 30 parts of modified talc powder, 7 parts of samarium nitrate, and 13 parts of ferric nitrate to 210 parts of water, mix and stir evenly, raise the temperature to 80°C, keep warm for 10 hours, and centrifuge The precipitate is obtained, and after the precipitate is washed, it is dried to obtain a metal ion modified talcum powder;

[0021] (3) Then, slowly add sulfuric acid of 1 times its weight to the metal ion modified talc powder, in the environment of 90 ℃, after continuous ...

Embodiment 2

[0027] A preparation method of a superacid flame-retardant PET resin masterbatch, comprising the following steps:

[0028] (1) In parts by weight, add 52 parts of talcum powder to 260 parts of water, mix and stir to obtain a suspension of talc powder, then add 78 parts of ammonia water and 7 parts of sodium polyacrylate to it, and heat the mixture to 90 ℃, after heat preservation treatment for 2.5 hours, filter and dry the filter cake to obtain modified talcum powder;

[0029] (2) In parts by weight, add 35 parts of modified talc powder, 8 parts of samarium nitrate, and 16 parts of ferric nitrate to 230 parts of water, mix and stir evenly, raise the temperature to 83°C, keep warm for 11 hours, and centrifuge The precipitate is obtained, and after the precipitate is washed, it is dried to obtain a metal ion modified talcum powder;

[0030] (3) Then slowly add sulfuric acid 1.3 times its mass to the metal ion modified talc powder, and in an environment of 93°C, after continuous...

Embodiment 3

[0036] A preparation method of a superacid flame-retardant PET resin masterbatch, comprising the following steps:

[0037] (1) In parts by weight, add 55 parts of talcum powder to 280 parts of water, mix and stir to obtain a suspension of talc powder, then add 80 parts of ammonia water and 9 parts of sodium polyacrylate to it, and heat the mixture to 92 ℃, after heat preservation treatment for 3 hours, filter and dry the filter cake to obtain modified talcum powder;

[0038] (2) In parts by weight, add 40 parts of modified talc powder, 10 parts of samarium nitrate, and 19 parts of ferric nitrate to 250 parts of water, mix and stir evenly, raise the temperature to 85°C, keep warm for 12 hours, and centrifuge The precipitate is obtained, and after the precipitate is washed, it is dried to obtain a metal ion modified talcum powder;

[0039] (3) Then slowly add sulfuric acid 1.5 times its weight to the metal ion modified talc powder, and in an environment of 95°C, after continuou...

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PUM

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Abstract

The invention discloses a preparation method of superacid flame-retardant PET resin master batch. The preparation method comprises the following steps: (1) adding talcum powder into water, mixing, stirring to obtain talcum powder suspension, continuously adding ammonia water and sodium polyacrylate to obtain modified talcum powder; (2) adding the modified talcum powder, samarium nitrate and iron nitrate into water to obtain metal ion modified talcum powder; (3) then slowly adding sulfuric acid into the metal ion modified talcum powder to obtain a superacid flame-retardant agent; and (4) mixingthe superacid flame-retardant agent, PET resin and a lubricating agent, adding into a high-speed mixer, uniformly mixing, extruding and granulating by adopting a double-screw extruder to obtain the superacid flame-retardant PET resin master batch. The preparation method of the superacid flame-retardant PET resin master batch provided by the invention is easy in obtaining raw materials and low incost; and the prepared superacid flame-retardant PET resin master batch is excellent in various mechanical performance and good in flame-retardant effect.

Description

technical field [0001] The invention belongs to the technical field of preparation of flame-retardant plastics, and in particular relates to a preparation method of a super-acid flame-retardant PET resin masterbatch. Background technique [0002] Polyethylene terephthalate, referred to as PET, synthesizes bishydroxyethyl terephthalate by transesterification of dimethyl terephthalate and ethylene glycol or by esterification of terephthalic acid and ethylene glycol. Then it is produced by polycondensation reaction. It is a crystalline saturated polyester. It is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It is a common resin in daily life. [0003] Flame retardant masterbatch, also known as flame retardant masterbatch, is one of the best flame retardant products in resins such as plastics and rubber. Flame retardant masterbatch is organic Combination, modification treatment and synergistic effect, and a granular product made by m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/02C08K9/04C08K9/00C08K3/34C08J3/22
CPCC08J3/226C08J2367/02C08K3/34C08K9/00C08K9/02C08K9/08
Inventor 纪安全
Owner 浙江龙泉泓业新材料有限公司
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