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Polypropylene composite material incombustible for 850 DEG C glowing filament and production method thereof

A composite material, a technology of burning polypropylene, applied in the field of plastic flame retardant, can solve the problems of burning, can not meet the flame retardant requirements of glow wire, etc., achieve the effect of avoiding burning, facilitating large-scale popularization and use, and strong solid phase barrier

Active Publication Date: 2013-01-30
中山市纳普工程塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it cannot completely block the contact between the flammable gas and oxygen produced by the material when the high-temperature glow wire is applied, and thus burns, it can no longer meet the increasing flame retardant requirements of the electronic and electrical products and household appliances industry, such as glow wire 850℃ non-flammable

Method used

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  • Polypropylene composite material incombustible for 850 DEG C glowing filament and production method thereof
  • Polypropylene composite material incombustible for 850 DEG C glowing filament and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The ingredients by weight consist of:

[0014] Polypropylene 100Kg, ammonium polyphosphate 23.5Kg, microencapsulated tris-(2,3-dibromopropyl)isocyanurate 11.75Kg, melamine 11.75Kg;

[0015] After weighing the compound flame retardant and polypropylene by weight, put it into a high-speed mixer at a speed of 650 rpm and a maximum stirring line speed of 20 m / s, mix for 5 minutes, and then extrude in a twin-screw extruder granulation, and the extrusion temperature was 180-185°C to obtain sample 1.

Embodiment 2

[0017] The ingredients by weight consist of:

[0018] Polypropylene 100Kg, ammonium polyphosphate 22.5Kg, microencapsulated tris-(2,3-dibromopropyl)isocyanurate 9Kg, melamine 13.5Kg;

[0019] After the compound flame retardant and polypropylene are weighed by weight, put them into a high-speed mixer at a speed of 750 rpm and the maximum stirring line speed 20 Under the condition of m / s, mix for 7 minutes, and then extrude and granulate in a twin-screw extruder at an extrusion temperature of 183-190°C to prepare sample 2.

Embodiment 3

[0021] The ingredients by weight consist of:

[0022] Polypropylene 100Kg, ammonium polyphosphate 24Kg, microencapsulated tris-(2,3-dibromopropyl)isocyanurate 14.4Kg, melamine 9.6Kg;

[0023] After the compound flame retardant and polypropylene are weighed by weight, put them into a high-speed mixer at a speed of 1200 Turn / min, maximum stirring line speed 15 Under the condition of m / s, mix for 7 minutes, and then extrude and granulate in a twin-screw extruder at an extrusion temperature of 185-190°C to prepare sample 3.

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Abstract

The invention relates to a polypropylene composite material incombustible for an 850 DEG C glowing filament, which has the advantages of high flame retardancy and low cost and can easily implement large-scale production. The flame-retardant polypropylene composite material comprises the following components in parts by weight: 100 parts of polypropylene and 45-50 parts of compound flame retardant; and the compound flame retardant comprises the following components in parts by weight: 100 parts of ammonium polyphosphate, 40-60 parts of microencapsulated tri-(2,3-dibromopropyl)isocyanurate and 40-60 parts of melamine. The compound flame-retardant system can enable polypropylene to obtain strong gas-phase obstruction as well as strong solid-phase obstruction, so that the polypropylene can effectively prevent flammable gas generated by the heated material from contacting oxygen, thereby avoiding combustion and achieving the technical index of incombustibility for 850 DEG C glowing filament.

Description

technical field [0001] The invention relates to the field of flame retardancy of plastics, in particular to a glow wire 850°C incombustible polypropylene composite material, that is, a flame-retardant polypropylene composite material. Background technique [0002] The glow wire flame retardant test of materials is mainly used to simulate the thermal stress caused by heat sources such as glowing components or overload resistors or ignition sources in a short period of time, and to evaluate the risk of fire with simulation technology. It is suitable for plastics used in electronic and electrical products and household appliances. Or non-metal insulating material parts. [0003] Now flame-retardant polypropylene composite materials have been widely used in electronic and electrical products and household appliances. Conventional polypropylene flame-retardant systems such as bromine-antimony flame-retardant systems and ordinary phosphorus-nitrogen intumescent flame-retardant sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K3/32C08K9/10C08K5/3492
Inventor 王聪
Owner 中山市纳普工程塑料有限公司
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