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Anti-precipitation environment-friendly flame-retardant plastic masterbatches and preparation method thereof

A flame-retardant plastic and anti-precipitation technology, applied in the field of flame-retardant materials, can solve the problems of large smoke and unsatisfactory product appearance, etc., and achieve the effects of reducing dosage, increasing migration resistance, and low cost

Active Publication Date: 2019-06-18
佛山市碧坤塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the existing halogen flame retardants are easy to precipitate in polyolefin, resulting in unsatisfactory product appearance and large smoke combustion smoke, the present invention proposes an anti-precipitation environment-friendly flame-retardant plastic masterbatch and a preparation method to achieve the anti-precipitation effect , Eliminate the "blooming" phenomenon on the surface of the material, improve the apparent quality of the product, and endow the polyolefin material with a long-term flame-retardant effect, reducing the amount of smoke when the product burns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030](1) Weigh the purified nano-montmorillonite with a particle size of 20nm as the raw material, add sodium dodecylbenzenesulfonate and stir and disperse at 500rpm, then move it into the reaction kettle and heat it to 85°C, add the activator carbonic acid Sodium is pre-activated, then gelling agent magnesium oxide / aluminum sulfate is added to carry out gelling treatment, constant temperature reaction is 30min, obtains nanometer montmorillonite gel; Wherein, the quality of nanometer montmorillonite, dispersant, sodium carbonate, gelling agent The ratio is 100:3:5:1;

[0031] (2) Add the halogen flame retardant dispersion liquid mixed with nano-montmorillonite gel with octabromoether and octabromo-S ether at a weight ratio of 1.2:1 into the Y opposite-beam ultra-high pressure micro-jet nano-homogenizer Carry out homogenization, the homogenization pressure is 50MPa, put the homogenized mixed solution into the spray dryer, set the inlet air temperature to 150°C, and the outlet ...

Embodiment 2

[0035] (1) Weigh the purified nano-montmorillonite with a particle size of 120nm as raw material, add sodium dodecylbenzene sulfate and stir and disperse at 500rpm, then move it into the reaction kettle and heat it to 85°C, add the activator sodium carbonate Carry out pre-activation, then add gelling agent magnesium oxide / aluminum sulfate to carry out gelling treatment, constant temperature reaction 30min, obtain nanometer montmorillonite gel; Wherein, the mass ratio of nanometer montmorillonite, dispersant, sodium carbonate, gelling agent is 100:3:5:1;

[0036] (2) Add the halogen flame retardant dispersion made by mixing nano-montmorillonite gel with octabromoether and octabromosan ether with a weight ratio of 3:1 into the Y opposite-beam ultra-high pressure micro-jet nano-homogenizer Carry out homogenization, the homogenization pressure is 180MPa, put the homogenized mixed solution into the spray dryer, set the inlet air temperature at 120°C, and the outlet air temperature ...

Embodiment 3

[0040] (1) Weigh the purified nano-montmorillonite with a particle size of 300nm as the raw material, add polyvinyl alcohol and stir and disperse at 500rpm, then move it into the reaction kettle and heat it to 85°C, add the activator sodium carbonate for pre-activation, Then add gelling agent magnesium oxide / aluminum sulfate to carry out gelling treatment, constant temperature reaction 30min, obtain nano-montmorillonite gel; wherein, the mass ratio of nano-montmorillonite, dispersant, sodium carbonate, gelling agent is 100:3 :5:1;

[0041] (2) Add the halogen flame retardant dispersion liquid mixed with nano-montmorillonite gel with octabromoether and octabromo-S ether at a weight ratio of 2:1 into the Y opposite-beam ultra-high pressure micro-jet nano-homogenizer Carry out homogenization, the homogenization pressure is 140MPa, put the homogenized mixed solution into the spray dryer, set the inlet air temperature at 100°C, and the outlet air temperature at 70°C, spray dry and ...

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Abstract

The invention provides anti-precipitation environment-friendly flame-retardant plastic masterbatches and a preparation method thereof. The preparation method comprises the following steps: preparing anano montmorillonite gel at first, homogeneously mixing the nano montmorillonite gel with a halogen flame retardant, then carrying out spray-drying and granulating to obtain a halogen flame retardantencapsulated by the nano montmorillonite gel, and finally blending and granulating the halogen flame retardant with a flame-retardant synergist EVA, a coupling agent, chlorinated paraffin, a stabilizer and modified polyamide to obtain the anti-precipitation flame-retardant plastic masterbatches. According to the invention, the nano montmorillonite gel is used for encapsulating the flame retardant, so that the migration resistance between the flame retardant and resin is increased, the migration rate of the low-molecular-weight halogen flame retardant is reduced, the anti-precipitation effectcan be achieved, the phenomenon of 'frosting' on the surface of the material is eliminated, the apparent quality of the product is improved, a polyolefin material is endowed with a long-acting flame retardant effect, the nano montmorillonite gel carrier has the characteristic of high specific surface area, and the smoke amount during combustion can be reduced.

Description

technical field [0001] The invention relates to the technical field of flame retardant materials, in particular to an anti-precipitation environment-friendly flame retardant plastic masterbatch and a preparation method. Background technique [0002] Polyolefin is the general term for all homopolymers, copolymers and their mixtures mainly composed of ethylene and propylene. It is widely used in electrical appliances, chemicals, food, machinery and transportation, especially in the wire and cable industry. One of the indispensable chemical products of the entire national economy. However, polyolefin is a flammable material, which produces a large number of molten droplets when burned, which can easily spread flames and cause fires. Therefore, the flame retardancy of polyolefins has become one of the focuses of scientific research. [0003] Flame retardants are a class of functional additives that can effectively prevent materials from burning and suppress the generation of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L23/08C08L91/06C08K13/06C08K9/02C08K3/34C08K9/12C08K5/06C08K5/41C08J3/22
Inventor 陈庆昝航
Owner 佛山市碧坤塑料有限公司
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