Flame-retardant silane cross-linked nano-modified polyolefin pre-dispersed master batch auxiliary

A nano-modification and silane cross-linking technology, which is applied in the field of flame retardant additives, can solve the problems of large filling amount of flame retardants, decreased mechanical properties, poor matrix compatibility, etc., and achieves excellent flame retardant properties, improved mechanical properties, The effect of enhancing binding force

Pending Publication Date: 2021-04-30
NINGBO ACTMIX POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The currently used inorganic flame retardant materials are generally in the micron size, and there is a large amount of flame retardant filling, which generally requires more than 50% of the added amount, which affects the decline in mechanical properties and poor compatibility with the matrix. Low fuel efficiency

Method used

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  • Flame-retardant silane cross-linked nano-modified polyolefin pre-dispersed master batch auxiliary
  • Flame-retardant silane cross-linked nano-modified polyolefin pre-dispersed master batch auxiliary
  • Flame-retardant silane cross-linked nano-modified polyolefin pre-dispersed master batch auxiliary

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Embodiment 1

[0032] Embodiment 1 A flame-retardant silane crosslinked nano-modified polyolefin pre-dispersed masterbatch additive and its preparation method, comprising:

[0033] 1. Preparation of nanoscale antimony trioxide

[0034] Dissolve antimony trichloride in high-concentration hydrogen chloride, and magnetically stir to dissolve it completely; slowly drop deionized water into the solution under stirring to form a precipitate; wash away free impurities with water, then add ammonia water to the precipitate, and boil to remove chlorine ions; after washing with water, filtering and drying, nano-scale antimony trioxide powder is obtained;

[0035] The synergistic flame retardant is blended with magnesium hydroxide, so that the composite flame retardant is used in PVC soft and hard products. In addition to excellent flame retardant performance, its mechanical properties have reached the standard, its electrical properties and processing properties are good, and it has Certain smoke supp...

Embodiment 2

[0039] Embodiment 2 A flame-retardant silane crosslinked nano-modified polyolefin pre-dispersed masterbatch additive and its preparation method, comprising:

[0040] 1. Preparation of nanoscale antimony trioxide

[0041] Dissolve antimony trichloride in high-concentration hydrogen chloride, and magnetically stir to dissolve it completely; slowly drop deionized water into the solution under stirring to form a precipitate; wash away free impurities with water, then add ammonia water to the precipitate, and boil to remove chlorine ions; after washing with water, filtering and drying, nano-scale antimony trioxide powder is obtained;

[0042] The synergistic flame retardant is blended with magnesium hydroxide, so that the composite flame retardant is used in PVC soft and hard products. In addition to excellent flame retardant performance, its mechanical properties are up to the standard, its electrical properties and processing properties are good, and it has Certain smoke suppres...

Embodiment 3

[0046] Embodiment 3 A flame-retardant silane crosslinked nano-modified polyolefin pre-dispersed masterbatch additive and its preparation method, comprising:

[0047] 1. Preparation of nanoscale antimony trioxide

[0048]Dissolve antimony trichloride in high-concentration hydrogen chloride, and magnetically stir to dissolve it completely; slowly drop deionized water into the solution under stirring to form a precipitate; wash away free impurities with water, then add ammonia water to the precipitate, and boil to remove chlorine ions; after washing with water, filtering and drying, nano-scale antimony trioxide powder is obtained;

[0049] The synergistic flame retardant is blended with magnesium hydroxide, so that the composite flame retardant is used in PVC soft and hard products. In addition to excellent flame retardant performance, its mechanical properties are up to the standard, its electrical properties and processing properties are good, and it has Certain smoke suppress...

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Abstract

The invention relates to the technical field of flame-retardant auxiliaries, in particular to a flame-retardant silane cross-linked nano-modified polyolefin pre-dispersed master batch auxiliary. The flame-retardant silane cross-linked nano-modified polyolefin pre-dispersed master batch auxiliary is prepared from the following raw materials: magnesium chloride, a solvent, calcium hydroxide, a precipitator, a cross-linking agent, a surfactant and a synergistic flame retardant, and when the silane cross-linking agent is added to modify a magnesium hydroxide flame retardant, the combustion-supporting effect of the additive is better; reduction of tensile strength and impact strength can be inhibited, hydrophilic groups of surfactant molecules are adsorbed on the surface of magnesium hydroxide with high surface energy, the binding force between magnesium hydroxide and a polymer is enhanced, and the mechanical property is improved to different degrees; and meanwhile, the processability of the composite material is improved, nanoscale antimonous oxide is added for blending, the flame retardant property is excellent, the mechanical property of the composite material reaches the standard, the electrical property and processability of the composite material are good, and a certain smoke suppression effect is achieved.

Description

technical field [0001] The invention relates to the technical field of flame retardant additives, in particular to a flame retardant silane cross-linked nano-modified polyolefin pre-dispersed masterbatch additive. Background technique [0002] Polyolefins are polymers of olefins, composed of ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene and other α-olefins and certain rings A general term for a class of thermoplastic resins obtained by the polymerization or copolymerization of olefins alone. Polyolefins have low relative density, good chemical resistance and water resistance; good mechanical strength and electrical insulation, but poor flame retardancy , in order to improve the flame retardant effect of polyolefin pre-dispersed master batches, it is necessary to add flame retardants for modification; [0003] Additive flame retardants are added to polymers by mechanical mixing to make polymers flame retardant. At present, additive flame re...

Claims

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Application Information

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IPC IPC(8): C08K9/06C08K9/04C08K3/22C08L27/06
CPCC08K9/06C08K9/04C08K3/22C08K3/2279C08L2201/02C08K2201/011C08K2003/2224
Inventor 谷建鹏杨宏伟
Owner NINGBO ACTMIX POLYMER
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