CLOSED POROUS COMPOSITE MATERIAL, THERMAL INSULATION MATERIAL, SOUND INSULATION MATERIAL, AND MANUFACTURING METHOD THEREOF

Title:

CLOSED POROUS COMPOSITE MATERIAL, THERMAL INSULATION MATERIAL, SOUND INSULATION MATERIAL, AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2020/052524

Kind Code:

A1

Abstract:

A closed porous composite material and a manufacturing method thereof. The method comprises: 1) preparing a mixture, wherein the mixture comprises 30 to 70 parts by weight of water-dispersed resin, 10 to 300 parts by weight of unexpanded thermal expansion microspheres, and 100 to 550 parts by weight of water, and stirring the mixture thoroughly; 2) preparing a carrier; 3) coating the carrier with the mixture acquired in step 1; 4) heating the carrier for a certain period of time, such that during heating, the unexpanded thermal expansion microspheres expand; and 5) repeating steps 3 and 4 multiple times to acquire a closed porous composite material. The closed porous composite material comprises a large number of closed cavities and polymer walls separating the closed cavities from each other, such that a size range of the closed cavity is 20 μm to 800 μm, and the ratio of a total volume of the closed cavities to a total volume of the polymer walls is greater than 16.

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Inventors:

ZHONG JINBANG (CN)

Application Number:

PCT/CN2019/104980

Publication Date:

March 19, 2020

Filing Date:

September 09, 2019

Export Citation:

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Assignee:

ZHONG JINBANG (CN)

International Classes:

B05D5/00; D06N3/00; B05D7/24; D06N3/04; D06N3/14

Foreign References:

CN109137537A	2019-01-04
CN106591504A	2017-04-26
CN106671634A	2017-05-17
CN106801111A	2017-06-06
CN1354085A	2002-06-19
CN107401060A	2017-11-28
CN201811051379A	2018-09-10

Other References: