Title:
FUNCTIONAL MAGNETIC POWDER AND METHOD FOR PREPARING SAME, MAGNETIC NYLON MASTERBATCH AND METHOD FOR PREPARING SAME, AND MAGNETIC PLASTIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2024/021297
Kind Code:
A1
Abstract:
The present application provides a functional magnetic powder and a method for preparing same, a magnetic nylon masterbatch and a method for preparing same, and a magnetic plastic material. The functional magnetic powder provided by the present application comprises, in parts by mass, 70-92 parts of magnetic powder, 0.1-1 part of an aminosilane coupling agent, and 0.1-1 part of a hydroxycarboxylic acid compound, wherein the hydroxycarboxylic acid compound has the following structure: CH 3(CH 2OHCCH 2OH) nCOOH, and n is an integer between 1 and 4. For the functional magnetic powder provided by the present application, the hydroxycarboxylic acid compound is grafted to the magnetic powder by means of the aminosilane coupling agent, so that the functional magnetic powder with functional groups such as hydroxyl, acylamino, methyl, and amino on the surface is obtained. A large number of functional groups allow the functional magnetic powder and a polymer to have excellent affinity and reactivity, thus facilitating uniform dispersing of the functional magnetic powder in the polymer and thereby improving the strength and toughness of a polymer-based magnetic composite material in a low-temperature environment.
Inventors:
LI GEN (CN)
HU JIANGPING (CN)
HU JIANGPING (CN)
Application Number:
PCT/CN2022/122234
Publication Date:
February 01, 2024
Filing Date:
September 28, 2022
Export Citation:
Assignee:
HENGDIAN GROUP DMEGC MAGNETICS CO LTD (CN)
International Classes:
C08K9/06; C08K9/04; C08L77/00
Foreign References:
| CN105348789A | 2016-02-24 | |||
| CN109880312A | 2019-06-14 | |||
| CN109294220A | 2019-02-01 | |||
| CN1645526A | 2005-07-27 | |||
| JPH02113061A | 1990-04-25 | |||
| CN107033632A | 2017-08-11 | |||
| CN102977383A | 2013-03-20 | |||
| JP2003151810A | 2003-05-23 | |||
| JP2009155545A | 2009-07-16 | |||
| US4680140A | 1987-07-14 |
Other References:
LI, YUPING; LI, JIAYU; HU, JIANGPING; FU, XIAOMIN; JIN, ZHIHONG; XU, CHEN; YAN, MI: "Effect of Additives on the Fluidity of Anisotropic Injection Ferrite Granules", JOURNAL OF MAGNETIC MATERIALS AND DEVICES, CN, no. 02, 15 April 2013 (2013-04-15), CN , pages 34 - 36, 55, XP009552267, ISSN: 1001-3830
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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