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Novel halogen-free flame retardant composite material and preparation method thereof

A flame retardant composite material and composite material technology are applied in the field of new halogen-free flame retardant composite materials and their preparation, which can solve the problems of non-polarity and the like, and achieve the effects of good adhesion, good impact strength and good low temperature resistance.

Active Publication Date: 2015-11-25
广州敬信高聚物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These elastomers can effectively improve the toughness of PP. However, these component materials all exhibit non-polar characteristics, which limits the application of PP and these PP composite materials in some occasions, especially those that require certain polarity and hydrophilicity. Occasions, such as printing and coating

Method used

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  • Novel halogen-free flame retardant composite material and preparation method thereof

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Effect test

Embodiment 1

[0038] A preparation method of a novel halogen-free flame retardant composite material, comprising the following steps:

[0039] (1) According to the weight percentage, 54% PP, 10% TPU, 20% aluminum hypophosphite, 10% flame retardant synergist, 5% EDPM-g-MAH and 1% coupling agent are mixed and stirred uniformly to obtain Mixture; wherein, the flame retardant synergist is a compound flame retardant of MCA and zinc borate, wherein the mass ratio of MCA and zinc borate is 1:1; the coupling agent is KH560 silane coupling agent.

[0040] (2) the uniformly stirred mixture in step (1) is fed into the extruder, the reaction time of the mixture in the extruder is 3-5min, and the reaction temperature is 180-190° C. to obtain a mixture in a molten state;

[0041] (3) The mixture in the molten state is extruded into a strip through an extruder, and then subjected to a dicing operation after being cooled under water to obtain PP / TPU composite pellets. The product performance is shown in T...

Embodiment 2

[0043] A preparation method of a novel halogen-free flame retardant composite material, comprising the following steps:

[0044] (1) According to the weight percentage, 44% PP, 20% TPU, 20% aluminum hypophosphite, 10% flame retardant synergist, 5% EDPM-g-MAH and 1% coupling agent are mixed and stirred uniformly to obtain Mixture; wherein, the flame retardant synergist is a compound flame retardant whose mass ratio of MCA and zinc borate is 1:1; the coupling agent is KH560 silane coupling agent.

[0045] (2) the mixture that is uniformly stirred in step (1) is sent into the extruder, the reaction time of the mixture in the extruder is 3-5min, and the reaction temperature is 180-190 ° C, to obtain the mixture in a molten state;

[0046] (3) The mixture in the molten state is extruded into a strip through an extruder, and then subjected to a dicing operation after being cooled under water to obtain PP / TPU composite pellets. The product performance is shown in Table 1.

Embodiment 3

[0048] A preparation method of a novel halogen-free flame retardant composite material, comprising the following steps:

[0049] According to weight percentage, 54% PP, 10% TPU, 20% aluminum hypophosphite, 10% flame retardant synergist, 5% POE-g-MAH, 1% coupling agent are mixed and stirred uniformly to obtain a mixture. Wherein, the flame retardant synergist is a compound flame retardant whose mass ratio of MCA and zinc borate is 1:1; the coupling agent is KH560 silane coupling agent.

[0050] Others are the same as in Example 1. The product properties are shown in Table 1.

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Abstract

The invention provides a novel halogen-free flame retardant composite material. The novel halogen-free flame retardant composite material comprises the following components in percentage by weight: 28% to 64.5% of polypropylene, 10% to 20% of thermoplastic polyurethane elastomer, 5% to 10% of bulking agent, 15% to 25% of halogen-free flame retardant agent, 5% to 15% of flame retardant synergist, and 0.5% to 2% of coupling agent, wherein the total percentage of the components by weight is 100%. The invention also aims at providing a preparation method of the novel halogen-free flame retardant composite material. The novel halogen-free flame retardant composite material has the advantages that the preparation technology is simple, the mechanical property is good, the high temperature-resistant property and flame-retardant property are realized, the efficiency is high, the clean and environment-friendly effects are realized, and the novel halogen-free flame retardant composite material can be widely applied to the fields of automobiles, household parts and accessories, wires and cables, and the like.

Description

technical field [0001] The invention relates to a novel halogen-free flame-retardant composite material and a preparation method thereof, in particular to a polypropylene / thermoplastic polyurethane elastomer halogen-free flame-retardant composite material and a preparation method thereof. Background technique [0002] As one of the five general-purpose plastics, polypropylene (PP) has excellent comprehensive mechanical properties, good dielectric properties and high-frequency insulation and is not affected by humidity. In addition, PP also has high heat resistance, It has good chemical properties, hardly absorbs water, and does not react with most chemicals. Because of its excellent comprehensive properties, PP has become an indispensable basic material in our daily life, especially in the fields of household appliances, plastic pipes, high-permeability materials and wire and cable materials. However, PP also has disadvantages, its low impact toughness and flammability are ...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L75/06C08L51/06C08L51/00C08K13/02C08K3/32C08K5/3492C08K3/38C08K5/54
CPCC08L23/14C08L2201/02C08L2201/08C08L2201/22C08L2205/03C08L75/06C08L51/00C08K13/02C08K3/32C08K5/34924C08K2003/387C08K5/54C08L51/06
Inventor 李天林邝淼
Owner 广州敬信高聚物科技有限公司
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