CAJ | 학술논문

以多元醇、二苯基甲烷4,4′-二异氰酸酯(MDI)为原料,合成了湿固化反应型聚氨酯热熔胶黏剂用于汽车车灯粘接,研究了胶黏剂的黏度、黏度稳定性和初黏力等性能.结果表明,当高结晶性聚酯和热塑性聚酯用量在10%和15%时,胶黏剂剥离强度达到980 N/25 mm,耐热性达到180℃,满足了汽车灯具密封与装配的要求.
이다원순、이분기갑완4,4′-이이청산지(MDI)위원료,합성료습고화반응형취안지열용효점제용우기차차등점접,연구료효점제적점도、점도은정성화초점력등성능.결과표명,당고결정성취지화열소성취지용량재10%화15%시,효점제박리강도체도980 N/25 mm,내열성체도180℃,만족료기차등구밀봉여장배적요구.
Moisture-curable polyurethane hot-melt adhesives for auto-lamps were synthesized from polyol and diphenyl methane-4,4'-diisocyanate (MDI). The viscosity, viscosity stability and green strength of the adhesive were studied. The peel strength was 980 N/25 mm and thermal resistance was 180 ℃ when the crystalline polyester content was 10% and the thermoplastic polyester content was 15%. The hotmelt adhesive is satisfied with the requirements of auto-lamps sealing and assembling.