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Polypropylene carrier high-efficiency halogen-free flame-retardant master batch and preparation method thereof

A technology of flame retardant masterbatch and polypropylene, which is applied in the field of flame retardant materials, can solve the problems of poor flame retardant effect, large amount of masterbatch added, and decreased mechanical properties of modified materials, achieving uniform dispersion, small repulsion, and Good strengthening and toughening effect

Active Publication Date: 2020-04-07
珠海鑫科高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems in the prior art that the polypropylene carrier halogen-free flame retardant masterbatch has poor flame retardant effect, the masterbatch is added in a large amount during use, and it is easy to cause the mechanical properties of the modified material to decrease, and to provide a polypropylene carrier with high efficiency Flame-retardant masterbatch and preparation method thereof

Method used

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  • Polypropylene carrier high-efficiency halogen-free flame-retardant master batch and preparation method thereof
  • Polypropylene carrier high-efficiency halogen-free flame-retardant master batch and preparation method thereof
  • Polypropylene carrier high-efficiency halogen-free flame-retardant master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing a polypropylene carrier high-efficiency halogen-free flame-retardant masterbatch, the specific steps are as follows:

[0034] (1) 60 parts of needle-shaped nano-aluminum hydroxide, 45 parts of boron oxide, 45 parts of alkylphenyl bisphosphate and 1 part of silane coupling agent KH-550 are mixed uniformly in a high-speed mixer with a speed of 70 rpm, After obtaining the modified flame retardant filler, wherein, the length of the needle-like nano-aluminum hydroxide is 45nm, and the diameter is 6nm;

[0035] (2) Take 4 parts of white oil to carry out oil extension treatment on 100 parts of homopolypropylene with a melt index of 10kg / 10min, and take 4 parts of white oil to carry out oil extension treatment on 100 parts of random copolymer polypropylene with a melt index of 10kg / 10min Process, wherein, white oil is 26# industrial plastic processing oil;

[0036] (3) Extrude the modified flame-retardant filler obtained in step (1) and the homopolypropy...

Embodiment 2～8

[0043] In Examples 2-8, the preparation method of the high-efficiency halogen-free flame-retardant masterbatch of polypropylene carrier, the specific steps are basically the same as in Example 1, the difference lies in the addition amount of each component and the processing conditions in each step. For the data, see Table 2, 6 parts of the final high-efficiency halogen-free flame-retardant masterbatch of polypropylene carrier and 100 parts of polypropylene (Aramco Asia's HP120G) were blended and plasticized to make a standard sample, and tested. The test results are shown in Table 3 .

[0044] Table 2

[0045]

[0046]

[0047] table 3

[0048]

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Abstract

The invention relates to a polypropylene carrier high-efficiency halogen-free flame-retardant master batch and a preparation method thereof. The preparation method comprises the steps: a polypropylenematrix and an additive are subjected to melt blending to prepare a polypropylene carrier high-efficiency halogen-free flame-retardant master batch; the additive comprises a flame-retardant filler, the polypropylene matrix is polypropylene random copolymer, and the flame-retardant filler is a flame-retardant filler subjected to double-coating, wherein the double-coating process comprises the steps: treating the flame-retardant filler with a coupling agent is treated, and the treated flame-retardant filler and homo-polypropylene are subjected to melt extrusion granulation and then ground. The finally prepared polypropylene carrier high-efficiency halogen-free flame-retardant master batch is mainly composed of the polypropylene random copolymer and the double-coated flame-retardant filler dispersed in the polypropylene random copolymer; the polypropylene carrier high-efficiency halogen-free flame-retardant master batch has excellent flame retardancy, and the material modified by the polypropylene carrier high-efficiency halogen-free flame-retardant master batch has excellent mechanical properties. The method is simple and feasible; the flame-retardant master batch prepared by the method is excellent in flame-retardant effect, does not cause reduction of mechanical properties of the modified material, and completely meets environmental protection requirements due to a halogen-freeflame-retardant system.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant materials, and relates to a high-efficiency halogen-free flame-retardant masterbatch of a polypropylene carrier and a preparation method thereof. Background technique [0002] Polypropylene resin has been widely favored in various industries due to its non-toxic, low density, excellent comprehensive properties such as rigidity and toughness balance, as well as good electrical properties, insulation properties and excellent processing properties. [0003] As people pay more and more attention to environmental protection and safety, people have higher and higher requirements for flame retardant performance, and polymer flame retardant technology has become a hot issue. Flame retardants are one of the most important plastic additives. Adding them to plastics can impart flame retardancy to plastics, making it difficult for plastics to be ignited. Even after ignited, the flame spreads slowly or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L91/06C08K9/10C08K9/06C08K7/08C08K3/38C08K5/523C08J3/22
CPCC08J3/226C08J2423/14C08J2423/12C08J2491/06C08J2323/12C08K9/10C08K9/06C08K7/08C08K3/38C08K5/523C08K2201/011C08K2201/003C08K2201/004
Inventor 梁伟成娄小安张强孟成铭陈东陈晓东
Owner 珠海鑫科高分子材料有限公司
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