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Preparation method of flame-retardant antistatic ethylene-vinyl acetate copolymer composite material

A vinyl acetate, flame retardant and antistatic technology, which is applied in the field of preparation of flame retardant and antistatic ethylene-vinyl acetate copolymer composite materials, can solve the problems of poor compatibility and no antistatic performance, and achieve good resistance Flame retardant effect, excellent flame retardant performance, good flame retardant performance effect

Pending Publication Date: 2021-04-13
SICHUAN DONGFANG INSULATING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the patent number is CN201110449551.2, and the name is "a kind of halogen-free flame-retardant ethylene-vinyl acetate copolymer composite material and its preparation method", which is a flame-retardant composite material prepared without antistatic properties ; The patent No. is CN201610552423.3, and the name "An antistatic flame retardant EVA / PVC composite foaming material and its preparation method and process" is prepared in that the composite material is applied in the field of foaming; and the prior art is generally adding Halogen-containing flame retardants achieve the flame-retardant effect, and there are also disadvantages such as poor compatibility when adding inorganic flame retardants. Taking into account the addition of halogen-free flame retardants with good compatibility and antistatic properties, they are used in household appliances and construction Composite materials in the industry, wire and cable fields have not been reported

Method used

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  • Preparation method of flame-retardant antistatic ethylene-vinyl acetate copolymer composite material
  • Preparation method of flame-retardant antistatic ethylene-vinyl acetate copolymer composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of DOPA:

[0033] At room temperature, weigh 10 g (0.046 mol) of 9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO for short), and put it into a reactor (such as a three-necked flask) , add dropwise 30mL (0.38mol) hydrogen peroxide (the mass percent concentration of the hydrogen peroxide is 30%), and heat up to 60°C, after the dropwise addition of hydrogen peroxide, the temperature rises to 70°C, and react for 8 hours to obtain the reacted material; After the material is cooled to room temperature, it is suction-filtered (normal pressure), and the solid (filter cake) is washed 4 times with solvent acetone, and then put into an oven at a temperature of 100° C. to dry to obtain DOPA;

[0034] The chemical name of DOPA is: 9,10-dihydro-9-oxa-10-phosphorphenanthrene-10-hydroxide;

[0035] (2) Preparation of modified aluminum hydroxide flame retardant (DOPA-ATH for short):

[0036] Take by weighing 5g (0.02mol) DOPA and 33g (0.43mol) aluminum hydroxi...

Embodiment 2

[0039] (1) Preparation of DOPA:

[0040] At room temperature, weigh 30g (0.138mol) of 9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO for short), and put it into a reactor (such as a three-necked flask) , add dropwise 90mL (1.14mol) hydrogen peroxide (the mass percent concentration of the hydrogen peroxide is 30%), and heat up to 70°C, after the dropwise addition of hydrogen peroxide, the temperature rises to 80°C, and react for 6 hours to obtain the reacted material; After the material is cooled to room temperature, it is suction-filtered (normal pressure), and the solid (filter cake) is washed 4 times with the solvent butanone, and then put into an oven at a temperature of 90° C. to dry to obtain DOPA;

[0041] The chemical name of DOPA is: 9,10-dihydro-9-oxa-10-phosphorphenanthrene-10-hydroxide;

[0042] (2) Preparation of modified aluminum hydroxide flame retardant (DOPA-ATH for short):

[0043] Take by weighing 15g (0.06mol) DOPA and 99g (1.29mol) aluminum hydr...

Embodiment 3

[0046] (1) Preparation of DOPA:

[0047] At room temperature, weigh 50g (0.23mol) of 9,10-dihydro-9-oxa-10-phosphophenanthrene-10-oxide (DOPO for short) and put it into a reactor (such as a three-necked flask) , dropwise added 150mL (1.9mol) hydrogen peroxide (the mass percent concentration of the hydrogen peroxide is 30%), and raised the temperature to 70°C, after adding the hydrogen peroxide dropwise, adjusted the temperature to 60°C, and reacted for 9 hours to obtain the reacted material; After the material is cooled to room temperature, it is suction-filtered (at normal pressure), and the solid matter (filter cake) is washed 3 times with the solvent butanone, and then put into an oven at a temperature of 100° C. to dry to obtain DOPA;

[0048] The chemical name of DOPA is: 9,10-dihydro-9-oxa-10-phosphorphenanthrene-10-hydroxide;

[0049] (2) Preparation of modified aluminum hydroxide flame retardant (DOPA-ATH for short):

[0050] Take by weighing 25g (0.1mol) DOPA and 16...

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Abstract

The invention discloses a preparation method of a flame-retardant antistatic ethylene-vinyl acetate copolymer composite material, wherein the preparation method is characterized by comprising the steps: carrying out chemical modification on a product 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10- hydroxide obtained by hydrolyzing a flame retardant aluminum hydroxide with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, to obtain a modified aluminum hydroxide flame retardant; and adding an ethylene-vinyl acetate copolymer, the modified aluminum hydroxide flame retardant and the antistatic agent into a stirrer at room temperature, stirring, dispersing, adding into a double-screw extruder, carrying out three-stage heating at the temperature of 150-165 DEG C, 160-170 DEG C and 150-165 DEG C, carrying out extrusion granulation, and thus obtaining the product. The flame-retardant antistatic ethylene-vinyl acetate copolymer composite material prepared by the preparation method has good flame retardant property, mechanical property and antistatic property, and is suitable for the fields of household appliances, construction industry, wires and cables and the like.

Description

technical field [0001] The invention belongs to the preparation of composite materials containing organic polymer compounds, and relates to a method for preparing flame-retardant and antistatic ethylene-vinyl acetate copolymer composite materials. The flame-retardant and antistatic ethylene-vinyl acetate copolymer composite material prepared by the invention is suitable for the fields of household appliances, construction industry, wires and cables, and the like. Background technique [0002] With the continuous development of modern science and technology in society, high molecular polymers and their composite materials have also developed by leaps and bounds. Polymer materials can be seen everywhere in people's daily life and work, and are closely related to people's food, clothing, housing and transportation. Plastics, fibers, coatings and rubber are the most commonly used polymer composite materials, which are widely used in the fields of automobiles, furniture, textile...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L71/02C08L77/00C08K9/04C08K3/22C08K5/5357C08K5/20
CPCC08L23/0853C08K9/04C08K3/22C08K5/5357C08K5/20C08K2003/2227C08L2201/02C08L2201/04C08L71/02C08L77/00C08K5/5313
Inventor 张峰李杰霞余莉
Owner SICHUAN DONGFANG INSULATING MATERIAL
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