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Multifunctional flame-proof masterbatch

A flame-retardant masterbatch and flame-retardant material technology, which is applied in the direction of fire-resistant coatings, etc., can solve the problems of material or product appearance, processing performance and physical and mechanical performance degradation, high filling amount, weak interaction, etc., to improve processing fluidity and appearance characteristics, improving flame retardancy, and improving mechanical properties

Active Publication Date: 2013-11-06
广东炜林纳新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for most polymer materials, while having a variety of excellent application properties, they have the disadvantage of being easy to burn: under high temperature conditions, they will be melted and decomposed by heat, thereby releasing flammable gases, which will then react with oxygen. During the reaction, combustion occurs; during combustion, a large amount of heat is generated, which further promotes the melting and decomposition of the polymer, making the combustion continue, causing fire and heavy losses of personnel and materials
[0005] On the one hand, halogen-free flame retardants can usually achieve better flame-retardant effect only when the filling content is high, but most of the halogen-free flame retardants are hydrophilic substances with high surface energy, which are compatible with non-polar polymers The compatibility of the matrix is ​​poor, it is difficult to disperse evenly when the filling amount is high, and the interaction with the matrix is ​​weak, resulting in obvious deterioration of the appearance, processing performance and physical and mechanical properties of the material or product, and the loss of application value
[0006] On the other hand, in the processing of polymer materials, adding halogen-free flame retardants, especially inorganic flame retardants and other additives one by one, brings a lot of inconvenience to actual processing and various operations, for example, it is difficult to accurately control Addition ratio, labor protection hidden dangers of operating workers, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 120 parts of magnesium hydroxide and 8 parts of organic montmorillonite were treated with 2.5 parts of rare earth surface treatment agent, and mixed with 100 parts of polypropylene (PP) (brand F401, melt flow rate 2.5g / 10min, density 0.91g / cm 3 ) are evenly mixed, and granulated by a twin-screw extruder to obtain a flame-retardant masterbatch.

[0023] The melt flow rate (MFR) of the masterbatch is 2.65g / 10min, the oxygen index is 29.5, the flame retardant is V0 level (UL-94, 3.2mm), the beam notched impact strength is 31.6J / m, and the flexural modulus It is 2435MPa, which can be used in the production of electrical housings.

Embodiment 2

[0025] Use 2.5 parts of rare earth surface treatment agent to surface treat 120 parts of magnesium hydroxide and 8 parts of organic montmorillonite, and mix with 0.5 parts of aromatic amide beta nucleating agent, 100 parts of polypropylene (PP) (brand F401, melt flow Rate 2.5g / 10min, density 0.91g / cm 3 ) are evenly mixed, and granulated by a twin-screw extruder to obtain a flame-retardant masterbatch.

[0026] The melt flow rate (MFR) of the masterbatch is 2.68g / 10min, the oxygen index is 29.3, the flame retardant is V0 level (UL-94, 3.2mm), the beam notched impact strength is 51.5J / m, and the flexural modulus It is 2230MPa.

Embodiment 3

[0028] Other conditions are the same as in Example 2, but the β nucleating agent used is a rare earth β nucleating agent, and the montmorillonite is unmodified montmorillonite.

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Abstract

The invention discloses a multifunctional flame-retardant master batch used for producing a high molecular flame-retardant material. The flame-retardant master batch is processed through mixing a flame retardant and a high molecular matrix, and further comprises one or more surface treating agents, and the surface treating agent has the functional groups used for combining with the functional groups of the flame retardant and the high molecular matrix. The multifunctional flame-retardant master batch of the invention can be used for the production of the non-halogen flame-retardant high molecular material or used for the prior flame-retardant material system, to improve the flame-retardant property, the mechanical property or the processing property of the prior flame-retardant system, and the operation is convenient.

Description

technical field [0001] The invention relates to a multifunctional flame-retardant masterbatch for producing polymer flame-retardant materials. Background technique [0002] Polymer materials are used more and more widely and play an increasingly important role in the national economy. However, for most polymer materials, while having a variety of excellent application properties, they have the disadvantage of being easy to burn: under high temperature conditions, they will be melted and decomposed by heat, thereby releasing flammable gases, which will then react with oxygen. During the reaction, combustion occurs; during combustion, a large amount of heat is generated, which further promotes the melting and decomposition of the polymer, making the combustion continue, causing fires and heavy losses of personnel and materials. Taking polyolefin (PO) with excellent comprehensive properties as an example, it has become the main base resin for preparing various modified materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K21/14C08K9/00C08L21/00C08K3/34C08K3/22
Inventor 冯嘉春黄锐郑德钱玉英陈宇
Owner 广东炜林纳新材料科技股份有限公司
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