Palmer W G, James R H, Moorman W J
Am Ind Hyg Assoc J. 1985 Dec;46(12):724-30. doi: 10.1080/15298668591395634.
The levels of polycyclic aromatic hydrocarbons (PAH) and related compounds, phenols and particulates were determined in emissions collected from iron casting molds composed of four different types of chemical binders: furan, urethane, green sand with sea coal and phenol-formaldehyde resins in shell molds. The shell sample, with 50% particulates, contained the most water-soluble material; green sand, 25% particulates; furan, 10% particulates; and urethane, less than 2% particulate material. The portion of the particulate fraction soluble in cyclohexane varies from 16 to 36% between mold types; emissions from urethane and furan molds contained the lowest quantities of cyclohexane-soluble components and of PAH and related compounds. Phenol, which was found in all four foundry samples, was present in the highest concentration in emissions from urethane molds. Shell mold emissions contained the highest levels of 2- and 4-nitrophenol.
对由四种不同类型化学粘结剂制成的铸铁模具排放物中的多环芳烃(PAH)及相关化合物、酚类和颗粒物水平进行了测定。这四种化学粘结剂分别是呋喃、聚氨酯、含海煤的湿型砂以及壳型模具中的酚醛树脂。壳型样品含有50%的颗粒物,其水溶性物质含量最高;湿型砂含25%的颗粒物;呋喃含10%的颗粒物;聚氨酯含不到2%的颗粒物质。不同模具类型中可溶于环己烷的颗粒部分比例在16%至36%之间变化;聚氨酯和呋喃模具排放物中可溶于环己烷的成分以及PAH和相关化合物的含量最低。在所有四个铸造样品中均发现了酚,其中聚氨酯模具排放物中的酚浓度最高。壳型模具排放物中2-硝基苯酚和4-硝基苯酚的含量最高。