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Modified recycled plastic particle with flame retardancy

A technology of recycled plastic particles and flame retardancy, applied in the field of modified recycled plastic particles, can solve the problems of easy fire, not very good flame retardancy, low efficiency, etc., and achieve strong flame retardancy, improve efficiency, and improve weather resistance. sexual effect

Inactive Publication Date: 2020-07-28
安徽成龙塑业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention utilizes advanced reduction technology to effectively decompose with the help of stabilizers and other additives, reduce the useful components and add them to the pvc+pu granulation process, which not only makes the pvc+pu modified granules have better It not only achieves the purpose of waste recycling and reuse, but also saves the high cost of artificial leather enterprises for the harmless treatment of these waste oils, turning waste into treasure, which not only saves social resources , and effectively protect the environment; however, the recycled modified plastic particles do not have good flame retardancy, and after being put into use, it is easy to cause a fire, and the preparation efficiency is low

Method used

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  • Modified recycled plastic particle with flame retardancy
  • Modified recycled plastic particle with flame retardancy
  • Modified recycled plastic particle with flame retardancy

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preparation example Construction

[0033] The preparation method of described intumescent flame retardant comprises the following steps:

[0034] S1: Diethylamine and phosphorus oxychloride are reacted in a solvent to generate phosphorus-containing, nitrogen-containing intermediate diethyl dichlorophosphonamide, and the molar ratio of diethylamine and phosphorus oxychloride is 1:1 to 1:5; The solvent is any one of chlorobenzene, benzene, chloroform and dichloromethane or a mixture of any proportion thereof, and the reaction temperature is controlled at -15-0°C; the reaction time is 3-15h;

[0035] S2: diethyl dichlorophosphonamide reacts with hexamethylenediamine under the introduction of an inert gas, and the product is filtered, washed, and dried to obtain a light yellow viscous liquid to obtain an intumescent flame retardant. The inert gas used is nitrogen, or Argon or helium, the reaction temperature is 25-75°C, and the reaction time is 8-22h.

[0036] The antioxidant is at least one of hydroquinone, diphe...

Embodiment 1

[0050] A modified recycled plastic particle with flame retardancy, comprising the following raw materials in parts by weight: 28 parts of polyethylene, 16 parts of polycarbonate, 21 parts of polycaprolactone, 5 parts of hexabromocyclododecane, antimony trioxide 4 parts, 4 parts of antimony pentoxide, 6 parts of nano silicon dioxide, 7 parts of glass fiber, 14 parts of pigment and filler, 6 parts of coupling agent, 7 parts of dispersant, 4 parts of stabilizer, 7 parts of plasticizer, anti 3 parts of oxidizing agent, 7 parts of intumescent flame retardant;

[0051] The preparation method of described intumescent flame retardant comprises the following steps:

[0052] S1: Diethylamine and phosphorus oxychloride are reacted in a solvent to generate phosphorus-containing, nitrogen-containing intermediate diethyl dichlorophosphonamide, and the molar ratio of diethylamine and phosphorus oxychloride is 1:1 to 1:5; The solvent is any one of chlorobenzene, benzene, chloroform and dichl...

Embodiment 2

[0059] A modified recycled plastic particle with flame retardancy, comprising the following raw materials in parts by weight: 28 parts of polyethylene, 16 parts of polycarbonate, 21 parts of polycaprolactone, 5 parts of hexabromocyclododecane, antimony trioxide 4 parts, 4 parts of antimony pentoxide, 6 parts of nano silicon dioxide, 7 parts of glass fiber, 14 parts of pigment and filler, 6 parts of coupling agent, 7 parts of dispersant, 4 parts of stabilizer, 7 parts of plasticizer, anti 0 parts of oxidizing agent, 5 parts of intumescent flame retardant;

[0060] The preparation method of described intumescent flame retardant comprises the following steps:

[0061] S1: Diethylamine and phosphorus oxychloride are reacted in a solvent to generate phosphorus-containing, nitrogen-containing intermediate diethyl dichlorophosphonamide, and the molar ratio of diethylamine and phosphorus oxychloride is 1:1 to 1:5; The solvent is any one of chlorobenzene, benzene, chloroform and dichl...

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Abstract

The invention discloses a modified recycled plastic particle with flame retardance, which comprises the following raw materials in parts by weight, 15-40 parts of polyethylene, 8-25 parts of polycarbonate, 12-30 parts of polycaprolactone, 1-8 parts of hexabromocyclododecane, 2-6 parts of antimonous oxide, 3-5 parts of antimonous oxide, 4-8 parts of nano silicon dioxide, 2-12 parts of glass fiber,8-20 parts of pigment filler, 3-8 parts of coupling agent, 3-8 parts of dispersing agent, 2-6 parts of stabilizer, 4-10 parts of plasticizer, 1-5 parts of antioxidant and 5-10 parts of intumescent flame retardant. According to the preparation method, the intumescent flame retardant and the antioxidant are added into the raw materials to be matched for use, the flame retardance of the modified recycled plastic particles can be improved, the preparation efficiency of the modified recycled plastic particles can be improved through the arranged stirring device, and the mixing degree of the raw materials is improved.

Description

technical field [0001] The invention relates to the technical field of plastic granules, in particular to a modified regenerated plastic granule with flame retardancy. Background technique [0002] Recycled granules are the abbreviation of recycled plastic granules. Recycled plastic granules belong to the category of plastic granules. Recycled plastics are plastics produced by recycling used new materials or waste plastics through a screw machine, and then pelletized. Machine-cut granules are a kind of plastic granules, which have a wide range of applications, superior performance, and high toughness, so they are in great demand. [0003] The patent document (CN103602005A) discloses an easily degradable regenerated modified plastic granule, which relates to the field of chemical technology. The modified plastic granule is composed of the following components in weight percentage: PVC waste 30-60%, polyurethane waste 10-40% , calcium powder 5-15%, calcium stearate 1-3%, degr...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L67/04C08L69/00C08K13/04C08K7/14C08K5/02C08K3/22C08K3/36C08K5/13C08K5/18C08K5/375C08K5/5399B29B9/06
CPCB29B9/06C08K2201/011C08K2201/014C08L23/06C08L2201/02C08L2201/08C08L2205/03C08L67/04C08L69/00C08K13/04C08K7/14C08K5/02C08K3/2279C08K3/36C08K5/13C08K5/18C08K5/375C08K5/5399
Inventor 靳成龙
Owner 安徽成龙塑业科技有限公司
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