Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

High glow-wire anti-flaming polypropylene composite and production method of polypropylene composite

A technology for burning polypropylene and composite materials, which is applied in the field of plastic flame retardancy, which can solve the problems of large amount of flame retardants, generation of harmful smoke, and decrease in tensile strength, so as to achieve good flame retardancy and promote the formation of carbon layers , the effect of high tensile strength

Active Publication Date: 2015-04-29
GUANGDONG JUSHI CHEM CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these flame retardant systems can achieve UL 94 V-0, some of these flame retardant polypropylene materials are halogen-free systems, which have low flame retardant efficiency, poor weather resistance and high tensile strength due to large additions of flame retardants. Disadvantages such as decreased amplitude; some are halogen-containing systems, which produce harmful smoke when burned

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High glow-wire anti-flaming polypropylene composite and production method of polypropylene composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The ingredient weight composition is:

[0014] 100kg of polypropylene, 0.5kg of free radical initiator, 10kg of ground glass fiber, 3.5kg of triphenylphosphine hydrobromide wrapped in MCA, 1kg of silicone copolymer, and 0.2kg of magnesium stearate;

[0015] After the polypropylene and the compound flame retardant are weighed by weight, they are put into a high-mixer and mixed for 30s, and then added to a twin-screw extruder with a length-to-diameter ratio of 28 to 32:1 for physical melt blending, extrusion, pelletizing, and cooling. , dicing, drying, batch mixing, extruding and granulating through a twin-screw extruder, the extrusion temperature is 180 ℃ ~ 190 ℃, and sample 1 is obtained.

Embodiment 2

[0017] The ingredient weight composition is:

[0018] 100kg of polypropylene, 0.5kg of free radical initiator, 10kg of ground glass fiber, 3.5kg of polyvinylamine hydrobromide wrapped in MCA, 1kg of silicone copolymer, and 0.2kg of magnesium stearate;

[0019] After the polypropylene and the compound flame retardant are weighed by weight, they are put into a high-mixer and mixed for 30s, and then added to a twin-screw extruder with a length-to-diameter ratio of 28 to 32:1 for physical melt blending, extrusion, pelletizing, and cooling. , dicing, drying, batch mixing, extruding and granulating through a twin-screw extruder, the extrusion temperature is 180 ℃ ~ 185 ℃, and sample 2 is obtained.

Embodiment 3

[0021] The ingredient weight composition is:

[0022] 100kg of polypropylene, 0.6kg of free radical initiator, 10kg of ground glass fiber, 5kg of MCA-wrapped melamine hydrobromide, 1.5kg of silicone copolymer, and 0.4kg of magnesium stearate;

[0023] After the polypropylene and the compound flame retardant are weighed by weight, they are put into a high-mixer and mixed for 30s, and then added to a twin-screw extruder with a length-to-diameter ratio of 28 to 32:1 for physical melt blending, extrusion, pelletizing, and cooling. , dicing, drying, batch mixing, extruding and granulating through a twin-screw extruder, the extrusion temperature is 180 ℃ ~ 185 ℃, and sample 3 is obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a high glow-wire anti-flaming polypropylene composite. The composite consists of the following components in parts by weight: 100 parts of polypropylene and 5-10 parts of a compound fire retardant, wherein the compound fire retardant comprises the following components in parts by weight: 5-10 parts of a radical initiator, 100 parts of milled glass fibre having a grain diameter less than 2.86 microns, 35-70 parts of a micro adhesive wrapped hydrobromide fire retardant, 10-30 parts of a silicone polymer and 2-8 parts of magnesium stearate. The high glow-wire anti-flaming polypropylene composite prepared by the method disclosed by the invention is excellent in anti-flaming property, reaches a UL94 anti-flaming V-2(1.5 / 3.0mm) grade, passes GWIT (Glow Wire Ignition Temperature) and GWFI (Glow Wire Ignition Index) glow wires, and has the characteristics of light weight, great tensile strength, no halogen, no smoke and no precipitation.

Description

technical field [0001] The invention relates to the field of plastic flame retardant, in particular to a high-glow-wire non-combustible polypropylene composite material, and the invention also relates to a production method of the high-glow-wire non-combustible polypropylene composite material. Background technique [0002] Polypropylene is one of the five general-purpose plastics and is widely used in the fields of home appliances, automobiles, and medical devices. However, like other plastics, it has flammable characteristics. In an environment where people pay more and more attention to life safety, fire prevention and environmental protection are the main directions of polypropylene development. [0003] The glow wire flame retardant test is a good test method. The glow-wire flame retardant test is mainly used to simulate the thermal point caused by a heat source such as an overload resistance of a thermal element in a short period of time, and to evaluate the possibil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L83/04C08K9/10C08K7/14C08K5/098
Inventor 张翼翔龚文幸张秀芹何燕岭
Owner GUANGDONG JUSHI CHEM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products