Title:
THERMOCHROMIC POLYPROPYLENE COMPOSITE, PREPARATION METHOD FOR SAME, AND APPLICATIONS THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/130120
Kind Code:
A1
Abstract:
Disclosed is a thermochromic polypropylene composite, comprising the following components in terms of parts by weight: a polypropylene resin 95-99 parts and a thermochromic microcapsule 0.5-3 parts. The core material of the thermochromic microcapsule is a triphenylmethane metal complex, the wall material of the thermochromic microcapsule is formed by polymerizing formaldehyde and melamine, and the molar ratio of formaldehyde/melamine is 2.5/1-3/1. First, melamine and formaldehyde undergo an addition reaction in an environment of pH 7.5-8.5 to produce a hydroxymethyl melamine prepolymer, then the triphenylmethane metal complex is dispersed in a sodium dodecyl sulfate aqueous solution of 0.2-1.0 wt% concentration, finally the hydroxymethyl melamine prepolymer is added to the described solution, the solution is regulated to a pH of 5.5-6.5 to produce a microcapsule emulsion, which is reacted at 80-90 °C for 3 h, rinsed, suction filtered, and dried to produce the thermochromic microcapsule. The thermochromic polypropylene composite has great long-term heat resistance, is widely applicable in the instrument panel, auxiliary instrument panel, seats, door panels, bumpers or columns of a vehicle.
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Inventors:
LEI LIANG (CN)
WANG DAZHONG (CN)
SU JUANXIA (CN)
LIN RONGTAO (CN)
SUN GANG (CN)
WU GUOFENG (CN)
YANG BO (CN)
LUO ZHONGFU (CN)
WANG DAZHONG (CN)
SU JUANXIA (CN)
LIN RONGTAO (CN)
SUN GANG (CN)
WU GUOFENG (CN)
YANG BO (CN)
LUO ZHONGFU (CN)
Application Number:
PCT/CN2018/071596
Publication Date:
July 19, 2018
Filing Date:
January 05, 2018
Export Citation:
Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
SHANGHAI KINGFA SCI & TECH CO (CN)
SHANGHAI KINGFA SCI & TECH CO (CN)
International Classes:
C08L23/14; C08K5/00; C08K9/10
Foreign References:
| CN105170041A | 2015-12-23 | |||
| CN105524399A | 2016-04-27 | |||
| JP2003119309A | 2003-04-23 |
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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