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A kind of sound insulation and noise reduction, flame retardant polypropylene material and preparation method thereof

A technology of flame-retardant polypropylene and polypropylene materials, applied in the fields of flame-retardant polypropylene materials and their preparation, sound insulation and noise reduction, can solve the problems of easily generating dust, harming the environment and human health, reducing the mechanical properties of materials, etc., and achieving good Sound and noise reduction performance, improve flame retardant efficiency, improve the effect of poor compatibility

Active Publication Date: 2021-03-09
WANHUA CHEMICAL (NINGBO) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN201010298952.8 discloses a preparation method of polypropylene sound insulation material. The patent uses iron powder and glass fiber for sound insulation. On the one hand, the density of polypropylene material is greatly improved. Dust, three wastes, and boron dioxide, which is in short supply when making glass fibers, are extremely expensive
However, the flame retardant effect of PP / basalt fiber composite material is not good. Chinese patent CN201310192031.7 prepares flame retardant polypropylene composite material by blending basalt fiber, flame retardant color masterbatch and heat stabilizer. Due to flame retardant and heat stabilizer They are all polar substances and have poor compatibility with polypropylene. The method of directly adding flame retardants will not only reduce the mechanical properties of the material, but also cause precipitation problems
Once precipitated, it will not only affect the performance of the product, but also endanger the environment and human health

Method used

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  • A kind of sound insulation and noise reduction, flame retardant polypropylene material and preparation method thereof
  • A kind of sound insulation and noise reduction, flame retardant polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Preparation of modified basalt fiber

[0036] a. Soak the basalt fiber in a 5wt% NaOH solution with a bath ratio of 1:50 for 90 minutes, and then soak it in a 5wt% acetic acid solution with a bath ratio of 1:50 for 120 minutes before taking it out.

[0037] b. Using ethanol as a solvent, make KH550 (purchased from Guangzhou Yihuisheng Chemical Co., Ltd.) into a 20wt% solution, place the basalt fiber treated in step a in the above solution, the bath ratio is 1:20, soak 3h.

[0038] c. Place the fiber treated above in a 10wt% phosphoric acid solution with a liquor ratio of 1:40 and ultrasonically mix it for 4 hours before taking it out. Put it into a drying oven, heat at 80°C for 60 minutes to remove the solvent, and then react at 110°C for 120 minutes to make the basalt fiber fully react with the above substances.

[0039] (2) Preparation of modified boehmite

[0040] a. Soak the boehmite in an acrylic acid solution with a bath ratio of 1:30 and 10wt% for 60 minut...

Embodiment 2

[0045] (1) Preparation of modified basalt fiber

[0046] a. Soak the basalt fiber in a 20wt% NaOH solution with a bath ratio of 1:20 for 20 minutes, and then soak it in a 20wt% acetic acid solution with a bath ratio of 1:20 for 30 minutes before taking it out.

[0047] b. Using distilled water as a solvent, make KH602 (purchased from Foshan Shengyi Plastic Chemical Co., Ltd.) into a 50wt% solution, place the basalt fiber treated in step a in the above solution, and set the bath ratio to 1:10 , Soak for 1h.

[0048] c. Place the fiber treated above in a 50wt% phosphoric acid solution with a liquor ratio of 1:10 and ultrasonically mix it for 1 hour before taking it out. Put it into a drying oven, heat at 100°C for 10 minutes to remove the solvent, and then react at 130°C for 30 minutes to fully react the basalt fiber with the above substances.

[0049] (2) Preparation of modified boehmite

[0050] a. Soak the boehmite in an acrylic acid solution with a bath ratio of 1:10 and 70...

Embodiment 3

[0055] (1) Preparation of modified basalt fiber

[0056] a. Soak the basalt fiber in a 10wt% NaOH solution with a bath ratio of 1:30 for 50 minutes, and then soak it in a 15wt% acetic acid solution with a bath ratio of 1:30 for 90 minutes before taking it out.

[0057] b. With 50wt% ethanol aqueous solution as solvent, KH602 (purchased from Foshan Shengyi Plastic Chemical Co., Ltd.) is made into a 30wt% solution, and the basalt fiber after step a is placed in the above solution, and the bath ratio is 1:15, soak for 2 hours.

[0058] c. Place the fiber treated above in a bath ratio of 1:25, 30wt% phosphoric acid solution and ultrasonically mix for 2 hours, then take it out. Put it into a drying oven, heat at 90°C for 30 minutes to remove the solvent, and then react at 120°C for 90 minutes to fully react the basalt fiber with the above substances.

[0059] (2) Preparation of modified boehmite

[0060] a. Soak the boehmite in an acrylic acid solution with a bath ratio of 1:20 ...

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PUM

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Abstract

The invention discloses a sound-insulating and noise-reducing, flame-retardant polypropylene material and a preparation method thereof. It is prepared from components including 20-60 parts by weight of polypropylene, 5-30 parts of modified basalt fiber, preferably 15-20 parts 2-30 parts, 2-30 parts of modified boehmite, preferably 5-10 parts, 0.5-1 part of antioxidant. The polypropylene material obtained by the invention has good sound insulation effect and flame retardant effect, and can be widely used in materials such as home appliances and automobile interior decorations.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a sound-insulating and noise-reducing flame-retardant polypropylene material and a preparation method thereof. Background technique [0002] As a general-purpose thermoplastic resin, polypropylene has excellent heat resistance, excellent corrosion resistance, electrical insulation and rigidity. At present, polypropylene has been widely used in various industries. However, polypropylene is easy to age, and it will produce toxic gas and bad smell when used under high temperature conditions. In addition, polypropylene has disadvantages such as large shrinkage, insufficient strength, and poor sound insulation performance. [0003] With the enhancement of consumers' awareness of environmental protection and health, and the improvement of living standards, people not only require cars and household appliances to be practical and of good quality, but also require them to ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/14C08K9/06C08K9/02C08K9/04C08K7/10C08K3/22C08K3/18
CPCC08K3/18C08K3/22C08K7/10C08K9/02C08K9/04C08K9/06C08K2003/2227C08L2201/02C08L23/12C08L23/14
Inventor 纪少思陈海波张文勇花月庆王竹
Owner WANHUA CHEMICAL (NINGBO) CO LTD
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