Polyformaldehyde composition and preparation method thereof

A technology of polyoxymethylene composition and polyoxymethylene resin, which is applied in the field of engineering plastics and can solve problems such as formaldehyde emission, odor, and mechanical properties research

Active Publication Date: 2021-05-14
KINGFA SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

CN110054861A discloses a preparation method of a low-gloss polyoxymethylene composite material, mainly adding acid-modified or amine-modified SEBS to the system to obtain a low-gloss polyoxymethylene composite material, but this scheme does not affect the formaldehyde content of the system. Release amount, odor, mechanical properties, etc.

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  • Polyformaldehyde composition and preparation method thereof
  • Polyformaldehyde composition and preparation method thereof

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Embodiment Construction

[0021] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific examples. Those skilled in the art should understand that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.

[0022] In the examples, the experimental methods used are conventional methods unless otherwise specified, and the materials and reagents used are commercially available unless otherwise specified.

[0023] The source of raw materials used in the following examples and comparative examples is as follows:

[0024] Polyoxymethylene resin:

[0025] POM M25, purchased from Yunnan Yuntianhua Co., Ltd., with a melt index of 2.5g / 10min (ISO1133-2011, 190°C / 2.16kg) and a density of 1.4g / cm 3 ;

[0026] POM M450, purchased from Yunnan Yuntianhua Co., Ltd., with a melt index of 45g / 10min (ISO1133...

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Abstract

The invention discloses a polyformaldehyde composition and a preparation method thereof. The polyformaldehyde composition is prepared from the following components in parts by weight: 86-94 parts of polyformaldehyde resin, 6-12 parts of acrylate copolymer and 0.5-2 parts of amide lubricant. The acrylate copolymer is added into the system, so that the glossiness of the polyformaldehyde composition can be effectively reduced; and the amide lubricant is added into the system, so that the formaldehyde emission and the odor level of the polyformaldehyde composition can be effectively reduced. According to the invention, by optimizing the addition amount of the acrylate copolymer and the amide lubricant, a low formaldehyde emission (<5ppm), low odor (<=3.5 grades) and low gloss (the glossiness is less than or equal to 35), and is suitable for automotive interior parts.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a polyoxymethylene composition and a preparation method thereof. Background technique [0002] The gloss of polyoxymethylene (POM) resin material is relatively high, generally around 85, but in automotive interior products, in order to reduce the reflection of light and reduce the stimulation to the naked eye, so as to ensure the safety of driving, some parts such as The tuyere components are required to achieve low gloss, but it is difficult to make the POM composition achieve low gloss by modifying POM with ordinary components. At the same time, because the product is used in automotive interiors, it is also required that the product has characteristics such as low formaldehyde emission and low odor. [0003] In order to make POM materials meet the use requirements of automotive interior products, the prior art has carried out research on the modification of the gl...

Claims

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Application Information

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IPC IPC(8): C08L59/00C08L33/04C08K5/20
CPCC08L59/00C08L33/04C08K5/20
Inventor 曹绍强黄险波叶南飚陈锋付学俊丁超
Owner KINGFA SCI & TECH CO LTD
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