Title:
WOOD-PLASTIC PACKAGING MATERIAL PREPARED BY USING RECLAIMED MATERIALS AND METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/061756
Kind Code:
A1
Abstract:
A method for preparing a wood-plastic packaging material by using reclaimed materials, comprising: crushing reclaimed PE materials and PP materials into powder, adding ethylene glycol monomethyl ether and dibutyl ester, performing impregnation at a temperature of 35-40°C for 30-40 min, and performing filtering to remove liquid; adding benzoic acid anhydride and a methyl silane coupling agent, performing melt blending and granulation at a temperature of 180-200°C, and cooling for further use; adding waste wood fibers into a heated stirrer, setting the temperature to be 50-70°C, adding tetraethyl silicate, p-methoxy acetanilide, and 1,3-dimethyl imidazoline into the stirrer within 30-40 min at the same time, after the addition is completed, increasing the temperature to 90-110°C, and continuing reacting for 1-2 h; and mixing products obtained in the previous steps, adding calcium carbonate powder, talcum powder, methyl methacrylate, and 2,2-dimethyl propanol, stirring and reacting at a temperature of 80-100°C for 20-30 min, and performing extrusion granulation and extrusion molding, thereby obtaining the wood-plastic packaging material prepared by using the reclaimed materials.
Inventors:
WANG JING (CN)
WANG HAIFENG (CN)
WANG HAIFENG (CN)
Application Number:
PCT/CN2017/112133
Publication Date:
April 04, 2019
Filing Date:
November 21, 2017
Export Citation:
Assignee:
SUZHOU YIMU PACKING MAT CO LTD (CN)
International Classes:
C08L97/02; C08K5/09; C08K13/02; C08L23/06; C08L23/12
Foreign References:
| CN106189326A | 2016-12-07 | |||
| CN103360776A | 2013-10-23 | |||
| CN102492209A | 2012-06-13 | |||
| CN102952317A | 2013-03-06 | |||
| EP0781806A2 | 1997-07-02 | |||
| US20080286551A1 | 2008-11-20 |
Attorney, Agent or Firm:
CHANGZHOU ZIRRON PATENT OFFICE (GENERAL PARTNERSHIP) (CN)
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