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Modified boehmite halogen-free flame-retardant ABS composite material and preparation method thereof

A composite material and boehmite technology, applied in the field of modified boehmite halogen-free flame retardant ABS composite material and its preparation, can solve the problem that it is difficult to take into account the flame retardancy and mechanical properties of the material, and the addition of halogen-free flame retardants The problems of large amount and poor compatibility of matrix resin have achieved the effect of broad market application prospects, improved mechanical properties, and flame retardant mechanical properties.

Inactive Publication Date: 2019-05-10
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The other type is halogen-free flame retardants, which are environmentally friendly, low-smoke, and low-toxicity, but while ensuring flame retardant performance, the mechanical properties are greatly lost, so it is difficult to take into account the flame retardancy and mechanical properties of the material
[0004] Although there have been many years of research on the halogen-free flame retardant of ABS, the disadvantages of large amount of halogen-free flame retardants, poor compatibility with the matrix resin, and reduced mechanical properties of materials have always been important reasons hindering its wide application in the market.

Method used

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  • Modified boehmite halogen-free flame-retardant ABS composite material and preparation method thereof
  • Modified boehmite halogen-free flame-retardant ABS composite material and preparation method thereof
  • Modified boehmite halogen-free flame-retardant ABS composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A modified boehmite halogen-free flame-retardant ABS composite material, comprising the following components in parts by weight:

[0039]

[0040] The halogen-free flame retardant is obtained by compounding ammonium polyphosphate (polymerization degree: 1000-2000) and pentaerythritol in a weight ratio of 3:1.

[0041] The modified boehmite is prepared by the following method: put 100 parts of boehmite in absolute ethanol in parts by weight, ultrasonically disperse for 15 minutes, and place 5 parts of silane coupling agent (KH-550) in an Hydrolyze in water and ethanol for 30 minutes. After the hydrolysis is completed, slowly add the hydrolyzed product to the boehmite-ethanol mixture, reflux at 80°C for 12 hours, then centrifuge, wash and dry, grind and sieve to obtain the modified boehmite.

[0042] A method for preparing a modified boehmite halogen-free flame-retardant ABS composite material, comprising the following steps:

[0043] (1) Stir and mix ABS, halogen-fre...

Embodiment 2

[0047] A modified boehmite halogen-free flame-retardant ABS composite material, comprising the following components in parts by weight:

[0048]

[0049] The halogen-free flame retardant is obtained by compounding ammonium polyphosphate (polymerization degree: 1000-2000) and pentaerythritol in a weight ratio of 3:1.

[0050] The modified boehmite is prepared by the following method: put 100 parts of boehmite in absolute ethanol according to parts by weight, ultrasonically disperse for 15 minutes, and place 5 parts of silane coupling agent (KH-560) in an Hydrolyze in water and ethanol for 30 minutes. After the hydrolysis is completed, slowly add the hydrolyzed product to the boehmite-ethanol mixture, reflux at 90°C for 12 hours, then centrifuge, wash and dry, grind and sieve to obtain the modified boehmite.

[0051] The preparation method of the modified boehmite halogen-free flame-retardant ABS composite material is the same as that in Example 1.

Embodiment 3

[0053] A modified boehmite halogen-free flame-retardant ABS composite material, comprising the following components in parts by weight:

[0054]

[0055] The halogen-free flame retardant is obtained by compounding ammonium polyphosphate (polymerization degree: 1000-2000) and pentaerythritol in a weight ratio of 3:1.

[0056] The modified boehmite is prepared by the following method: 100 parts of boehmite are placed in absolute ethanol by weight parts, ultrasonically dispersed for 15 minutes, and 5 parts of silane coupling agents (KH-550 and KH-560 (mixed at a mass ratio of 1:1) was hydrolyzed in absolute ethanol for 30 minutes. After the hydrolysis was completed, the hydrolyzed product was slowly added to the boehmite ethanol mixture, refluxed at 100°C for 12 hours, then centrifuged, washed and dried, ground and sieved Modified boehmite was obtained.

[0057] The preparation method of the modified boehmite halogen-free flame-retardant ABS composite material is the same as ...

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Abstract

The invention discloses a modified boehmite halogen-free flame-retardant ABS composite material. The modified boehmite halogen-free flame-retardant ABS composite material comprises the following components in parts by weight: 0-70 parts of ABS, 25-35 parts of a halogen-free flame retardant, 0.5-5 parts of modified boehmite and 0.5-1 part of an antioxidant. According to the method, the coupling agent is grafted on the surface of the boehmite through wet modification of the boehmite, so that the compatibility of the boehmite in high polymer is improved, the boehmite is uniformly dispersed in a matrix material, and the effects of fully playing flame retardance and improving mechanical properties are achieved. The obtained composite material is excellent in flame retardance, good in mechanicalproperty and wide in market application prospect.

Description

technical field [0001] The invention relates to the technical field of flame-retardant composite material preparation, in particular to a modified boehmite halogen-free flame-retardant ABS composite material and a preparation method thereof. Background technique [0002] ABS refers to a terpolymer of acrylonitrile, butadiene and styrene, which is widely used in thermoplastic engineering plastics in the fields of automobiles, home appliances and office equipment. But ABS also has disadvantages, for example, it is easy to burn, its limiting oxygen index is about 19%, and it is accompanied by dense smoke when burning, which greatly limits the wider application of ABS resin. [0003] In order to improve the flame retardant performance of ABS resin, it is necessary to add flame retardant to ABS resin. Flame retardants can be divided into two categories. One is halogenated flame retardants, which have less dosage, good mechanical properties and obvious flame retardant effect, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08K13/06C08K9/06C08K3/22C08K3/32C08K5/053
Inventor 王文静徐百平蒋光彪杜遥雪杨传忠喻慧文何亮
Owner WUYI UNIV