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A kind of polyolefin flame retardant masterbatch and its preparation method and application

A technology of flame retardant masterbatch and polyolefin, which is applied in the field of polyolefin flame retardant masterbatch and its preparation, can solve the problems of poor compatibility, achieve the effects of improved compatibility, improved flame retardant performance, and great promotion value

Active Publication Date: 2022-04-26
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, LDH has a strong polarity, while polyolefins have less polarity, resulting in poor compatibility between LDH and polyolefins

Method used

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  • A kind of polyolefin flame retardant masterbatch and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Weigh 400gMgCl 2 ·6H 2 O, 600gAlCl 3 ·6H 2 O. 2.4kg of deionized water was added to the reaction vessel, stirred and reacted at 90°C for 4h to prepare solution A.

[0032] (2) Weigh 200g of potassium hydroxide, 300g of potassium carbonate, and 1.6kg of deionized water, add them into a reaction vessel, stir and react for 3 hours at room temperature, and prepare solution B.

[0033] (3) Weigh 800 g of solution A, 200 g of solution B, and 30 g of sodium dodecylbenzenesulfonate, add them into a reaction vessel, stir and react at 100°C for 8 hours, and prepare solution C.

[0034] (4) Place solution C at room temperature for aging, remove the upper clarified liquid, suction filter the white turbid liquid in the lower layer, wash with deionized water, dry, pulverize, and pass through a 600-mesh sieve to obtain the modified LDH .

[0035] (5) Weigh 200g modified LDH, 240g melamine pyrophosphate (MPP), 80g pentaerythritol (PER), 600gPP, 3g erucamide, 3g antioxidant 101...

Embodiment 2

[0039] (1) Weigh 300gMgCl 2 ·6H 2 O, 500gAlCl 3 ·6H 2 O. 2.0kg of deionized water was added to the reaction vessel, stirred and reacted at 70°C for 2h, and solution A was prepared.

[0040] (2) Weigh 100g of potassium hydroxide, 200g of potassium carbonate, and 1.0kg of deionized water, add them into a reaction vessel, stir and react at room temperature for 1 hour, and prepare solution B.

[0041] (3) Weigh 600g of solution A, 100g of solution B, and 10g of sodium dodecylbenzenesulfonate, add them into a reaction vessel, stir and react at 80°C for 6h, and prepare solution C.

[0042] (4) Place solution C at room temperature for aging, remove the upper clarified liquid, suction filter the white turbid liquid in the lower layer, wash with deionized water, dry, pulverize, and pass through a 600-mesh sieve to obtain the modified LDH .

[0043] (5) Weigh 100g modified LDH, 200g melamine pyrophosphate (MPP), 60g pentaerythritol (PER), 400gPP, 1g erucamide, 1g antioxidant 1010, ...

Embodiment 3

[0075] (1) Weigh 350gMgCl 2 ·6H 2 O, 550gAlCl 3 ·6H 2 O. 2.2kg of deionized water was added to the reaction vessel, stirred and reacted at 80°C for 3h, and solution A was prepared.

[0076] (2) Weigh 150g of potassium hydroxide, 250g of potassium carbonate, and 1.3kg of deionized water, add them into a reaction vessel, stir and react at room temperature for 2 hours, and prepare solution B.

[0077] (3) Weigh 700 g of solution A, 150 g of solution B, and 20 g of sodium dodecylbenzenesulfonate, add them into a reaction vessel, stir and react at 90° C. for 7 hours, and prepare solution C.

[0078] (4) Place solution C at room temperature for aging, remove the upper clarified liquid, suction filter the white turbid liquid in the lower layer, wash with deionized water, dry, pulverize, and pass through a 600-mesh sieve to obtain the modified LDH .

[0079] (5) Weigh 150g modified LDH, 220g melamine pyrophosphate (MPP), 70g pentaerythritol (PER), 500g polyethylene (PE), 2g eruca...

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Abstract

The invention discloses a polyolefin flame-retardant masterbatch and its preparation method and application. The preparation method comprises the following steps: (1) adding soluble magnesium salt and aluminum salt to water to prepare solution A; (2) preparing a mixed alkali solution , recorded as solution B; (3) solution A, solution B, and sodium dodecylbenzenesulfonate were mixed to obtain solution C; (4) solution C was aged, filtered, washed, and dried to obtain modified LDH; (5) Modified LDH, intumescent flame retardant, pentaerythritol, polyolefin, erucamide, and antioxidant are mixed to obtain a compound; (6) The compound is extruded and granulated to obtain a polyolefin flame-retardant masterbatch. The LDH of the present invention is organically modified by sodium dodecylbenzene sulfonate, which can improve its compatibility with polyolefins, make it uniformly dispersed in the polyolefin matrix, and the modified LDH has a synergistic effect with the intumescent flame retardant The flame retardant effect can well improve the flame retardant performance of polyolefin composite materials.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polyolefin flame-retardant masterbatch and a preparation method and application thereof. Background technique [0002] With the development of the polymer material industry, polyolefin composite materials are used in all walks of life. However, since polyolefins are mainly composed of carbon, hydrogen, and oxygen atoms, polyolefins are generally flammable. With social progress and With the emphasis on the safety of life and property, the preparation of a polyolefin flame retardant masterbatch to improve the flame retardant performance of polyolefin composite materials has attracted widespread attention. [0003] There are many methods for improving the flame-retardant properties of polyolefins, but the preparation methods in the prior art have complicated procedures and high costs, which are not conducive to industrial production. Layered double hydroxide (LDH for sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/12C08L25/06C08K13/06C08K9/04C08K3/26C08K5/3492C08K5/053C08K5/20C08J3/22
CPCC08J3/226C08J2323/12C08J2323/06C08J2325/06C08K13/06C08K9/04C08K3/26C08K5/34928C08K5/053C08K5/20
Inventor 杨桂生费彬蒋超杰范继贤吴安琪
Owner HEFEI GENIUS NEW MATERIALS
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