Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite modifier for urea-formaldehyde resin adhesive
The invention discloses a composite modifier for a urea-formaldehyde resin adhesive, and the composite modifier for the urea-formaldehyde resin adhesive is composed of formaldehyde, water, talcum powder, diatomite, magnesium oxide, cassava starch, a composite additive, ammonium chloride, urea, polyvinyl alcohol, a formic acid solution and konjac glucomannan. The coating has certain bonding capacity and higher heat resistance, and water is used as a solvent, so that the volatilization of more methanol solvent during coating curing is avoided; the talcum powder is added, so that the storage stability is good, the viscosity is not obviously changed within 20 days, the storage period can reach 4 months or above, and the magnesium oxide is added, so that the water resistance and the weather resistance are obviously improved compared with those of an unmodified urea-formaldehyde resin adhesive.
本发明公开了一种脲醛树脂胶粘剂用复合改性剂，所述脲醛树脂胶粘剂用复合改性剂由甲醛、水、滑石粉、硅藻土、氧化镁、木薯淀粉、复合助剂、氯化铵、尿素、聚乙烯醇、甲酸溶液、魔芋胶组成，本发明通过使用的有机和无机胶溶材料，它有一定黏结能力，同时具有较高耐热性能，其中以水为溶剂，避免涂层固化时较多甲醇溶剂挥发；本发明通过添加滑石粉，储存稳定性好，在20天内黏度无明显变化，储存期可达到4个月以上，本发明通过添加氧化镁，耐水性、耐候性比未经改性的脲醛树脂胶粘剂有明显改善。
Composite modifier for urea-formaldehyde resin adhesive
The invention discloses a composite modifier for a urea-formaldehyde resin adhesive, and the composite modifier for the urea-formaldehyde resin adhesive is composed of formaldehyde, water, talcum powder, diatomite, magnesium oxide, cassava starch, a composite additive, ammonium chloride, urea, polyvinyl alcohol, a formic acid solution and konjac glucomannan. The coating has certain bonding capacity and higher heat resistance, and water is used as a solvent, so that the volatilization of more methanol solvent during coating curing is avoided; the talcum powder is added, so that the storage stability is good, the viscosity is not obviously changed within 20 days, the storage period can reach 4 months or above, and the magnesium oxide is added, so that the water resistance and the weather resistance are obviously improved compared with those of an unmodified urea-formaldehyde resin adhesive.
本发明公开了一种脲醛树脂胶粘剂用复合改性剂，所述脲醛树脂胶粘剂用复合改性剂由甲醛、水、滑石粉、硅藻土、氧化镁、木薯淀粉、复合助剂、氯化铵、尿素、聚乙烯醇、甲酸溶液、魔芋胶组成，本发明通过使用的有机和无机胶溶材料，它有一定黏结能力，同时具有较高耐热性能，其中以水为溶剂，避免涂层固化时较多甲醇溶剂挥发；本发明通过添加滑石粉，储存稳定性好，在20天内黏度无明显变化，储存期可达到4个月以上，本发明通过添加氧化镁，耐水性、耐候性比未经改性的脲醛树脂胶粘剂有明显改善。
Composite modifier for urea-formaldehyde resin adhesive
一种脲醛树脂胶粘剂用复合改性剂
MOU HUI (Autor:in) / LU YUSHENG (Autor:in)
02.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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