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A kind of flame retardant polypropylene material with good light stability and preparation method thereof

A flame retardant polypropylene and light stability technology, applied in the field of flame retardant polypropylene materials and their preparation, and flame retardant polypropylene materials, can solve the problems of poor light stability of flame retardant PP, and achieve good photostability, The effect of good flame retardant properties

Inactive Publication Date: 2020-07-21
HEILONGJIANG XINDA ENTERPRISE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In order to overcome the shortcomings of Flamestab NOR 116, the patent applicant has developed a series of phosphite tris (1-alkoxy-4-hydroxyl-2,2,6,6-tetramethylpiperidinyl) esters (abbreviated as phosphorous acid Esters), and found that it not only has a significant synergistic effect on MHB and aluminum hypophosphite (or aluminum dialkylphosphinate) composite flame-retardant PP, but also can endow flame-retardant PP with good light stability and anti-oxidation effect, Overcome the shortcomings of poor light stability of flame retardant PP prepared by using MHB / aluminum hypophosphite (or aluminum dialkylphosphinate) flame retardant and bicum as synergist

Method used

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  • A kind of flame retardant polypropylene material with good light stability and preparation method thereof
  • A kind of flame retardant polypropylene material with good light stability and preparation method thereof
  • A kind of flame retardant polypropylene material with good light stability and preparation method thereof

Examples

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Effect test

Embodiment 1

[0032] A kind of flame-retardant polypropylene material with good photostability and preparation method thereof, its composition and the quality of each component are listed in Table 1:

[0033] Its preparation method is as follows: Accurately weigh the mass of each component, first add MHB, inorganic aluminum hypophosphite, phosphite-1, and antioxidant into a grinding mixer (Tianjin Test Co., Ltd.) and mix for 3 minutes, then pour it into Put it into a 5L mechanical mixer, add PP particles and mix for 3 minutes, and finally pass the above mixture through a twin-screw extruder (JS30A twin-screw extruder produced by Yantai Qitong Powder Machinery Co., Ltd., L / D=42.5cm / 2cm , speed 20-30rpm, extrusion temperature 190-200°C) melt mixing extrusion, granulation, and drying to obtain a flame-retardant PP material with good light stability.

[0034] The main mechanical properties and flame retardant properties of the flame retardant PP prepared according to the above composition and p...

Embodiment 2～ Embodiment 20

[0037] The compositions of Examples 2 to 20 and the quality of each component are listed in Table 1. The preparation method is the same as that of Example 1, and the main mechanical properties and flame retardant properties are listed in Table 2. The data in Table 2 shows that the flame-retardant PP prepared according to Examples 2-20 has almost the same characteristics as Example 1.

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Abstract

The invention discloses a flame retardant polypropylene material with good light stability and a preparation method thereof. The polypropylene material is prepared by selecting a compound of melaminehydrobromide (MHB) and aluminum phosphinate (including inorganic aluminum hypophosphite and aluminum alkylphosphonate) as a flame retardant, selecting tri(1-alkoxy-2,2,6,6-tetramethylpiperidyl) phosphate as a multifunctional flame retardant synergist, and carrying out melt mixing and granulating. The polypropylene material is prepared from the following components in percentage by mass: 90 to 99 percent of polypropylene resin, 0.4 to 4 percent of MHB, 0.4 to 4 percent of aluminum phosphinate, 0.05 to 0.5 percent of the tri(1-alkoxy-2,2,6,6-tetramethylpiperidy) phosphate, 0.0 to 0.5 percent ofan antioxidant and 0 to 1.0 percent of other processing aids. The PP (polypropylene) material prepared according to the method has the advantages of good flame retardant performance; flame retardant rating can reach UL94 V-1 level; in addition, light stability is good and the processing performance and mechanical properties of the PP material are basically close to those of pure PP.

Description

technical field [0001] The present invention relates to a kind of flame-retardant polypropylene material with good light stability and preparation method thereof, specifically with melamine hydrobromide and aluminum phosphinate (comprising inorganic aluminum hypophosphite and aluminum alkyl phosphinate) The compound is a flame retardant, and tris(1-alkoxy-2,2,6,6-tetramethylpiperidinyl) phosphite is a multifunctional flame retardant synergist, which is melt-kneaded and granulated The prepared flame-retardant polypropylene material with good light stability belongs to the field of polymer materials. Background technique [0002] Polypropylene (PP) is widely used in machinery, automobiles, electrical appliances and other industries due to its excellent properties such as high rigidity, high strength, good heat resistance, and easy processing. It is currently the fastest growing general plastic and the most active in new product development. one of the species. However, PP is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K13/02C08K5/00C08K3/32C08K5/3492C08K5/5313C08K5/524C08K5/134
CPCC08K3/32C08K5/00C08K5/1345C08K5/34928C08K5/524C08K5/5313C08K13/02C08L2201/02C08L23/12C08L23/14
Inventor 唐林生吴鸿志杨晶巍何为张琪侯小敏
Owner HEILONGJIANG XINDA ENTERPRISE GRP