Halloysite composite flame retardant masterbatch

A technology of composite flame retardant and composite flame retardant, which is applied in the field of halloysite composite flame retardant masterbatch, can solve the problems of high price and increased production cost, and achieve the effect of low cost, long-lasting effect and strong heat insulation performance

Inactive Publication Date: 2011-11-16
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology makes use of naturally occurring materials like haloysites mixed together. These mixtures are very effective because they absorb gases well while also blocking out other substances that may harm or reduce their functioning. They provide excellent fire resistance without adding too much weight (which could lead to decreased strength). Additionally, this mixture does not produce any volatiles during combustion which helps prevent air pollution from burning up unhealthy areas around us. It'll help protect our planet better if used properly.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding suitable fireproof agents based upon fluorescent calcium carbonate which combines certain chemical elements together without generating hazards associated therewith.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1), crush natural halloysite to 100-10000 mesh (particle size is 0.2-2.8um),

[0029] (2) Premix halloysite powder, magnesium hydroxide and silane coupling agent in a medium-speed mixer for 1 minute to obtain a halloysite compound flame retardant, wherein magnesium hydroxide is used as a compounding agent and The mass ratio of rockite to magnesium hydroxide is 2:1.

[0030] (3) Mix the halloysite composite flame retardant with polypropylene resin in a weight ratio of 70:30, and then use a twin-screw extruder for melt blending and granulation to prepare halloysite composite flame retardant masterbatches .

[0031] As an alternative to the above embodiments, the silane coupling agent is γ-aminopropyltriethoxysilane, γ-epoxypropyltriethoxysilane or γ-methacryloxypropyl One or more of the base triethoxysilanes.

[0032] Combustion performance test

[0033] Mix the halloysite composite flame-retardant masterbatch and polypropylene resin at a weight ratio of 1:8, then us...

Embodiment 2

[0036] (1), crush natural halloysite to 100-10000 mesh (particle size is 0.2-2.8um),

[0037] (2) Premix halloysite powder, melamine and titanate coupling agent in a medium-speed mixer for 3 minutes to obtain a halloysite compound flame retardant, in which melamine is used as a compounding agent and halloysite The mass ratio of stone to melamine is 2:1.

[0038] (3) Mix the halloysite composite flame retardant with polypropylene resin in a weight ratio of 70:30, and then use a twin-screw extruder for melt blending and granulation to prepare halloysite composite flame retardant masterbatches .

[0039] Combustion performance test

[0040] Mix the halloysite composite flame-retardant masterbatch and polypropylene resin at a weight ratio of 1:10, then use a twin-screw extruder for melt blending and granulation, and use an injection molding machine for injection molding to obtain a flame-retardant polypropylene composite material . Determination of its flame retardant performa...

Embodiment 3

[0043] (1), crush natural halloysite to 100-10000 mesh (particle size is 0.2-2.8um),

[0044] (2) Premix halloysite powder, red phosphorus and aluminate coupling agent in a medium speed mixer for 5 minutes to obtain halloysite composite flame retardant, wherein red phosphorus is used as a compounding agent and The mass ratio of halloysite to red phosphorus is 3:2.

[0045] (3) Mix the halloysite composite flame retardant with polypropylene resin in a weight ratio of 70:30, and then use a twin-screw extruder for melt blending and granulation to prepare halloysite composite flame retardant masterbatches .

[0046] Combustion performance test

[0047]Mix the halloysite composite flame-retardant masterbatch and polypropylene resin at a weight ratio of 1:7, then use a twin-screw extruder for melt blending and granulation, and use an injection molding machine for injection molding to obtain a flame-retardant polypropylene composite material . Determination of its flame retardant...

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PUM

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Abstract

The invention provides a halloysite composite flame retardant masterbatch. The flame retardant masterbatch is prepared by the processes of mixing halloysite powder of 100 to 10000 meshes and a compound agent to obtain a halloysite composite flame retardant, mixing the halloysite composite flame retardant and one or more thermoplastic resins, and carrying out an extrusion process on the mixture to obtain a halloysite composite flame retardant masterbatch. Cellular structures of micro- or nano-tubes of halloysite have a strong sorption effect on gas and a strong heat insulation performance, can block a thermal transmission, have a good water absorption performance and a water retention performance, can produce water vapour for blocking oxygen and enable products obtained form a high-temperature calcination process to cover on the surface of a polymer and to play a role in oxygen blocking, thus halloysite has a good flame retardant performance, when halloysite are used in combination with a compound agent, flame retardant effects of halloysite are further improved due to a synergistic effect of halloysite and the compound agent. Compared with other flame retardants, halloysite has the advantages of no volatilization, long effecting time, low price, no smoke and no toxicity, thus a flame retardant masterbatch prepared form halloysite as a main additive is an ideal environment-friendly type flame retardant masterbatch.

Description

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Claims

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Application Information

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Owner SHENZHEN KEJU NEW MATERIAL
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