Efficient flame retardant polyolefin composition

A polyolefin and composition technology, which is applied in the field of high-efficiency flame-retardant polyolefin compositions, can solve the problems of high cost, flame-retardant failure, low thermal decomposition temperature, etc., and achieves high flame-retardant synergy and efficient flame-retardant effect. Effect

Active Publication Date: 2016-06-22
ZHONGSHAN COMPLORD NEW MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented new type of flammable resins are made up of specific chemical components called tripartate or tetrahydrofuran (THF). These materials have excellent fire resistance compared to existing ones but they also reduce their physical characteristics such as rigidity at room temperatures. By adding these ingredients together without affecting them' overall performance, this material becomes more effective against fires caused by certain types of substances like polytetrafluorobutyltride (PTFE) particles.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the fireproof property (flamability) of polyproplylenes without adding harmful or expensive compounds that may affect their physical strengths like tensile elongation rate.

Method used

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  • Efficient flame retardant polyolefin composition
  • Efficient flame retardant polyolefin composition
  • Efficient flame retardant polyolefin composition

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The flame-retardant polyolefin composition of this embodiment is made of the following mass percentages of raw materials: polypropylene 97.5%, hypophosphite 1%, melamine hydrobromide 0.5%, flame retardant synergist 0.5%, lubricant EBS0. 2%, 0.1% of main antioxidant, 1680.2% of auxiliary antioxidant. The hypophosphite is aluminum hypophosphite, the main antioxidant is antioxidant 1010, the auxiliary antioxidant is antioxidant 168, and the flame retardant synergist is cumene and p-diiso The polymerization mixture generated by the polymerization reaction of propylbenzene, the preparation method of the polymerization mixture includes the following steps:

[0027] Step 1. Put cumene and p-diisopropylbenzene into a three-necked flask, stir under the protection of a nitrogen atmosphere and raise the temperature to 130°C, and then drop di-tert-butyl peroxide at a rate of 0.75mL / min The polymerization reaction is carried out in the heated mixture of cumene and p-diisopropylbenzene...

Embodiment 2

[0044] The flame-retardant polyolefin composition of this embodiment is made of the following mass percentages of raw materials: polypropylene 98.4%, hypophosphite 0.4%, melamine hydrobromide 0.4%, flame retardant synergist 0.5%, lubricant EBS0. 1%, 0.1% of main antioxidant, 0.1% of auxiliary antioxidant. The hypophosphite is magnesium hypophosphite, the main antioxidant is antioxidant 1010, the auxiliary antioxidant is antioxidant 168, and the flame retardant synergist is 4-methyl cumene The polymerization mixture produced by the polymerization reaction with p-diisopropylbenzene, the preparation method of the polymerization mixture includes the following steps:

[0045] Step 1. Add 4-methylisopropylbenzene and p-diisopropylbenzene into a three-necked flask, stir under the protection of a nitrogen atmosphere and raise the temperature to 90°C, and then peroxidize tert-butyl at a rate of 1.5mL / min Hydrogen was dropped into the heated mixture of 4-methylisopropylbenzene and p-diiso...

Embodiment 3

[0049] The flame-retardant polyolefin composition of this embodiment is made of the following mass percentages of raw materials: 95.6% of polypropylene, 1.2% of hypophosphite, 0.8% of melamine hydrobromide, 1.5% of flame retardant synergist, and lubricant EBS0. 3%, main antioxidant 0.3%, auxiliary antioxidant 0.3%. The hypophosphite is calcium hypophosphite. The main antioxidant is antioxidant 1010, the auxiliary antioxidant is antioxidant 168, and the flame-retardant synergist is the polymerization reaction of 3-methyl cumene and p-diisopropyl benzene. The resulting polymerization mixture, the preparation method of the polymerization mixture includes the following steps:

[0050] Step 1. Add 3-methylisopropylbenzene and p-diisopropylbenzene into a three-necked flask, stir under the protection of a nitrogen atmosphere and raise the temperature to 120℃, and then oxidize the di-tert-butylperoxide at a rate of 1mL / min The substance was dropped into the heated mixture of 3-methylis...

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Abstract

The invention discloses an efficient flame retardant polyolefin composition. The efficient flame retardant polyolefin composition is prepared from the following raw materials in percentage by mass: 90.7-99% percent of polypropylene, 0.4-4 percent of hypophosphite, 0.1-2 percent of melamine hydrobromide, 0.2-2 percent of flame retardant synergist, 0.1-0.3 percent of lubricant EBS, 0.1-0.5 percent of main antioxidant and 0.1-0.5 percent of secondary antioxidant, wherein the flame retardant synergist is a polymeric mixture generated by a polymerization reaction between an isopropyl benzene compound and diisopropylbenzene. The efficient flame retardant polyolefin composition has efficient flame retardancy; in the raw materials, the hypophosphite is taken as a phosphorus-based flame retardant, the melamine hydrobromide is taken as a brominated flame retardant, and the polymeric mixture generated by the polymerization reaction between the isopropyl benzene compound and the diisopropylbenzene is taken as the flame retardant synergist; an added hypophosphite/melamine hydrobromide/flame retardant synergist flame retardant system had no influence on the mechanical property of the polypropylene.

Description

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Claims

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Application Information

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Owner ZHONGSHAN COMPLORD NEW MATERIALS CO LTD
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