The invention discloses a preparation method of a heat and sound insulation blanket for vehicles, which comprises the following steps: during the preparation of the heat and sound insulation blanket for vehicles, reacting oleic acid with glycidyl ether to obtain modified oleic acid, reacting polycaprolactone polyol with toluene diisocynate for a period of time, adding polyethylene glycol and the modified oleic acid, and continuously reacting to obtain modified polyurethane; the preparation method comprises the following steps: reacting trimethoxysilane, diphenyldimethoxysilane and vinyl trimethoxysilane for a period of time, and then adding p-hydroxystyrene for continuous reaction to prepare p-hydroxyphenyl vinyl hyperbranched polysiloxane; the preparation method comprises the following steps: loading oxalic acid on hollow porous silicon dioxide, sequentially reacting with p-aminophenyltrimethoxysilane and p-hydroxyphenyl vinyl hyperbranched polysiloxane to obtain modified silicon dioxide, heating polyurethane, putting the heated polyurethane into a mold, adding the modified silicon dioxide, cooling, and standing to obtain the heat and sound insulation blanket for the vehicle. The prepared heat and sound insulation blanket for the vehicle has excellent heat insulation performance, sound insulation performance and durability.
本发明公开了一种车用隔热隔音毯的制备方法,本发明在制备车用隔热隔音毯时,先将油酸和缩水甘油醚反应制得改性油酸,将聚己内酯多元醇、甲苯二异氰酸酯反应一段时间后加入聚乙二醇和改性油酸继续反应制得改性聚氨酯,将三甲氧基硅烷、二苯基二甲氧基硅烷、乙烯基三甲氧基硅烷进行反应一段时间后加入对羟基苯乙烯继续反应制得对羟基苯基乙烯基超支化聚硅氧烷,将中空多孔二氧化硅负载草酸后依次和对氨基苯基三甲氧基硅烷、对羟基苯基乙烯基超支化聚硅氧烷反应制得改性二氧化硅,将聚氨酯加热后置于模具中,并加入改性二氧化硅后降温静置后制得车用隔热隔音毯。本发明制备的车用隔热隔音毯具有优良的隔热性能、隔音性能和耐用性能。
Preparation method of heat and sound insulation blanket for vehicle
一种车用隔热隔音毯的制备方法
2024-07-19
Patent
Electronic Resource
Chinese
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
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