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A platform for research: civil engineering, architecture and urbanism
Preparation method of biomass-based ultralight heat-insulating and wave-absorbing foam
The invention relates to the technical field of wave-absorbing materials, in particular to a preparation method of biomass-based ultra-light heat-insulating wave-absorbing foam, which comprises the following steps: dissolving biological glue in water, and stirring to form uniform colloid; adding a proper amount of foaming agent into the colloid, and quickly stirring to form a solution containing a large number of bubbles; and adding biomass carbon into the obtained foam solution, continuously and quickly stirring until the solution is uniformly freeze-dried, and curing in an inert atmosphere to obtain the ultra-light broadband absorption biomass foam. Wherein the biomass carbon source comprises but is not limited to corncobs, and the method specifically comprises the following steps: carbonizing the collected corncobs in an inert atmosphere at 800 DEG C for 2 hours to obtain the biomass carbon; the ratio of the addition amount of the biomass carbon to the biological glue is (0.5: 1)-(1: 1). The method is simple in process, short in preparation period, low in requirements on production equipment and easy for industrial production. The biomass foam wave-absorbing material prepared by the invention has the advantages of wide effective absorption frequency band, multi-band absorption, ultralight weight, heat insulation and the like.
本发明涉及吸波材料技术领域，具体涉及了一种生物质基超轻隔热吸波泡沫的制备方法，包括：将生物胶溶于水中，并搅拌形成均匀的胶体；向胶体中加入适量的发泡剂，快速搅拌形成含大量气泡的溶液；向所得泡沫溶液中加入生物质碳，持续快速搅拌直至溶液均匀冻干，惰性气氛固化，得到超轻宽带吸收的生物质泡沫。其中，生物质碳来源包括但不限于玉米芯，具体的，将采集到的玉米芯在惰性气氛中于800℃碳化2 h，得到生物质碳；生物质碳加入量与生物胶的比例为0.5:1~1:1。本发明工艺简单，制备周期短，对生产设备要求低，易于工业化生产。本发明所制备的生物质泡沫吸波材料具有有效吸收频带宽、多频段吸收、超轻、隔热等优点。
Preparation method of biomass-based ultralight heat-insulating and wave-absorbing foam
The invention relates to the technical field of wave-absorbing materials, in particular to a preparation method of biomass-based ultra-light heat-insulating wave-absorbing foam, which comprises the following steps: dissolving biological glue in water, and stirring to form uniform colloid; adding a proper amount of foaming agent into the colloid, and quickly stirring to form a solution containing a large number of bubbles; and adding biomass carbon into the obtained foam solution, continuously and quickly stirring until the solution is uniformly freeze-dried, and curing in an inert atmosphere to obtain the ultra-light broadband absorption biomass foam. Wherein the biomass carbon source comprises but is not limited to corncobs, and the method specifically comprises the following steps: carbonizing the collected corncobs in an inert atmosphere at 800 DEG C for 2 hours to obtain the biomass carbon; the ratio of the addition amount of the biomass carbon to the biological glue is (0.5: 1)-(1: 1). The method is simple in process, short in preparation period, low in requirements on production equipment and easy for industrial production. The biomass foam wave-absorbing material prepared by the invention has the advantages of wide effective absorption frequency band, multi-band absorption, ultralight weight, heat insulation and the like.
本发明涉及吸波材料技术领域，具体涉及了一种生物质基超轻隔热吸波泡沫的制备方法，包括：将生物胶溶于水中，并搅拌形成均匀的胶体；向胶体中加入适量的发泡剂，快速搅拌形成含大量气泡的溶液；向所得泡沫溶液中加入生物质碳，持续快速搅拌直至溶液均匀冻干，惰性气氛固化，得到超轻宽带吸收的生物质泡沫。其中，生物质碳来源包括但不限于玉米芯，具体的，将采集到的玉米芯在惰性气氛中于800℃碳化2 h，得到生物质碳；生物质碳加入量与生物胶的比例为0.5:1~1:1。本发明工艺简单，制备周期短，对生产设备要求低，易于工业化生产。本发明所制备的生物质泡沫吸波材料具有有效吸收频带宽、多频段吸收、超轻、隔热等优点。
Preparation method of biomass-based ultralight heat-insulating and wave-absorbing foam
一种生物质基超轻隔热吸波泡沫的制备方法
WU HONGJING (author) / SHI BIN (author) / CHANG QING (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C08J
Verarbeitung
,
WORKING-UP
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
H05K
PRINTED CIRCUITS
,
Gedruckte Schaltungen
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