Title:
SANDWICH COMPOSITE BOARD AND A PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/007797
Kind Code:
A1
Abstract:
The invention belongs to the technical field of composite board preparation, and relates to a sandwich composite board and a preparation method therefor. The sandwich composite board includes, from top to bottom, an upper panel layer, a core layer, and a lower panel layer, wherein the upper panel layer and the lower panel layer are a glass or fiber reinforced resin-based composite sheet; and the core material layer is composed of an aerogel, a resin and an expandable microsphere foaming agent. Method (1) comprises: heating and melting a resin to obtain slurry A, cooling same, adding an aerogel and an expandable microsphere foaming agent thereto, and uniformly mixing same to obtain slurry B, then flat-laying the lower panel layer, coating or printing with the slurry B, then laying the upper panel layer and hot press molding same. Method (2) comprises: uniformly mixing an aerogel, a resin and an expandable microsphere foaming agent to obtain mixed material A, charging the mixed material A into a non-woven bag for sealing to obtain core B, flat-laying the lower panel layer, flat-laying the core B, then laying the upper panel layer, and hot press molding same. The sandwich composite board prepared by the present invention has a controllable thickness, a controllable density, a good heat insulation, a sound insulation and noise reduction effect, and a good integrity.
Inventors:
LIU XIZONG (CN)
ZHANG JICHENG (CN)
DONG HUINA (CN)
HE FENGXIA (CN)
GONG XIANGMING (CN)
YAO DONGJIA (CN)
ZHANG DONGSHENG (CN)
ZHANG JICHENG (CN)
DONG HUINA (CN)
HE FENGXIA (CN)
GONG XIANGMING (CN)
YAO DONGJIA (CN)
ZHANG DONGSHENG (CN)
Application Number:
PCT/CN2021/104768
Publication Date:
January 13, 2022
Filing Date:
July 06, 2021
Export Citation:
Assignee:
GONG YI VAN RES INNOVATION COMPOSITE MATERIAL CO LTD (CN)
International Classes:
B32B17/00; B32B27/42; B32B17/06; B32B17/12; B32B27/08; B32B27/20; B32B37/06; B32B37/10; B32B37/24; E04F13/075
Domestic Patent References:
| WO2017038769A1 | 2017-03-09 |
Foreign References:
| CN111844996A | 2020-10-30 | |||
| CN109963822A | 2019-07-02 | |||
| CN209794765U | 2019-12-17 | |||
| CN110525005A | 2019-12-03 | |||
| CN209353612U | 2019-09-06 | |||
| CN110682622A | 2020-01-14 | |||
| CN107620437A | 2018-01-23 | |||
| KR20180114679A | 2018-10-19 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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