CAJ | 학술논문

以1,6-六亚甲基二异氰酸酯(HDI)、聚氧化丙烯多元醇(PPG)、3,3/-二氯-4,4/-二氨基二苯甲烷(MOCA)为原料合成了聚氨酯弹性体,并进一步将消烟耐烧蚀反应型填料填充其中制得低烟耐烧蚀聚氨酯弹性材料.系统的研究了软段含量、交联度对产物力学性能的影响.结果表明:随软段长度的增加,HDI型聚醚弹性体的拉伸强度、邵氏硬度和回弹率降低,扯断伸长率增加;随着交联度的增加其扯断伸长率、邵氏硬度降低,拉伸强度则先降低后增加,回弹率却大幅增加.同时研究结果表明填充消烟耐烧蚀反应型填料的HDI型聚醚弹性体不仅具有优异的力学性能,还具有优异的低烟耐烧蚀性能.
이1,6-륙아갑기이이청산지(HDI)、취양화병희다원순(PPG)、3,3/-이록-4,4/-이안기이분갑완(MOCA)위원료합성료취안지탄성체,병진일보장소연내소식반응형전료전충기중제득저연내소식취안지탄성재료.계통적연구료연단함량、교련도대산물역학성능적영향.결과표명:수연단장도적증가,HDI형취미탄성체적랍신강도、소씨경도화회탄솔강저,차단신장솔증가;수착교련도적증가기차단신장솔、소씨경도강저,랍신강도칙선강저후증가,회탄솔각대폭증가.동시연구결과표명전충소연내소식반응형전료적HDI형취미탄성체불부구유우이적역학성능,환구유우이적저연내소식성능.
The polyurethane elastomer was prepared through the reaction of HDI,PPG and MOCA. And then, the functional filler with smoke suppression and anti-ablation material was doped in to the polyurethane elastomer. The effect of the soft segment length and the crosslinked degree on the mechanical properties of the polyurethane elastomer was investigated in detail. The tensile strength、shore hardness and Spring back rate of the polyurethane elastomer decreased with the increase in the soft segment length. However, the elongation at break increased. At the same time, the results showed that the breaking elongation and shore hardness decreased, and the spring back rate increased with the incrensement of the crosslinked degree. In addition, the polyurethane elastomer containing functional filler has low-smoke and ablation-resistance.