CAJ | 학술논문

将高温煤沥青以粉状填料的形式加入聚氨酯固化体系中,合成了低成本、环境友好型双组分聚氨酯防水复合材料;研究并确定了影响复合材料力学性能、透水性及低温弯折等性能的各参数最优条件：油酸质量分数（2.0%）、—HMOCA摩尔分数（55.6%）、异氰酸酯基质量分数（4.5%～5.0%）、羟醚（N220、N330）摩尔比值（0.6）和扩链系数（0.9）;通过紫外光（λ=365 nm）、可见光照射对比实验分析了复合材料的力学性能影响因素,并进行了机理探讨。结果表明,复合材料具有良好的力学性能、防水性能和低温柔韧性,紫外光照射对复合材料的改性有一定的积极作用。
장고온매력청이분상전료적형식가입취안지고화체계중,합성료저성본、배경우호형쌍조분취안지방수복합재료;연구병학정료영향복합재료역학성능、투수성급저온만절등성능적각삼수최우조건：유산질량분수（2.0%）、—HMOCA마이분수（55.6%）、이청산지기질량분수（4.5%～5.0%）、간미（N220、N330）마이비치（0.6）화확련계수（0.9）;통과자외광（λ=365 nm）、가견광조사대비실험분석료복합재료적역학성능영향인소,병진행료궤리탐토。결과표명,복합재료구유량호적역학성능、방수성능화저온유인성,자외광조사대복합재료적개성유일정적적겁작용。
In this paper, two-component waterproof polyurethane waterproof composite-was synthesized via adding coal pitch powder as filler to polyurethane curing reaction system. The influences of contents of oleie acid, MOCA and isocyano group, molar ratios of poly- ether polyols( N220, N330) and chain extension coefficients were researched on the mechanical properties (tensile strength, breaking e- longation rate and tearing strength), water permeability and cryo-flexibility of polyurethane waterproof composite. The modifications of mechanical properties of waterproof composite were investigated during UV irradiation with a mercury lamp (λ =365 nm) and visible light irradiation, respectively. The results showed that the optimum parameters were obtained as follow: the mass fraction of oleie acid mass of B component, the mass fractions of theoretical isooyano group of A component, the molar ratio of polyether polyols ( N220, N330), the molar raction of --HMOCA of B component ( or molar ratio of MOCA to N330) and chain extension coefficient were 2%, 4.5% - 5.0%,0. 6, 55.6% and 0.9, respectively. And ultraviolet-irradiation could enhance the mechanical properties of waterproof composite. Meanwhile, the composite possesses good waterproof property and low temperature flexibility.