酚醛泡沫以甲阶酚醛树脂为主要原料,由于其优异的保温和阻燃性能在保温领域具有广阔的应用前景.但是,酚醛泡沫在成型过程中通过酸性(催化)固化剂固化成型,金属材料与泡沫体接触时容易受到腐蚀.为了降低金属被腐蚀的可能性,在不影响酚醛泡沫其他优良性能的前提下,通过选择合适的碱性填料、用酯固化作用取代酸固化剂、合成吸酸剂等方法降低酚醛泡沫的酸性.

建立了沙发面料中痕量VOCs分析方法.本方法将沙发面料样品置于特定条件下的采样袋中,以Tenax管富集,用热脱附-气相色谱质谱(TD-GC-MS)进行分析.对样品前处理条件和分析条件进行了优化,线性范围为(5～100)ng,相关系数R2为0.9981～0.9998,检测限为(0.002～0.010)mg·m-3,平均加标回收率为86.4％～100.5％,RSD(n=7)为1.2％～5.9％.该方法模拟样品实际使用条件,符合沙发革日常使用下的VOCs释放现状,适用于沙发革中痕量挥发性有机化合物的测试分析,可作为现有皮革和人造革VOCs测试方法的补充.

Basing on the discussion of the development status of block board in china and the key problem existing currently,this essay mainly discussed on the importance and necessity of the impregnation stripping performance, bending strength and the formaldehyde release quantity of block board.

This paper provides a solution of automatic calculation of environmental radon concentrations which based on the γ spectrometer spectrum software.The method solved the problem of the large calculation in the measurement environment with activated charcoal radon concentration and the problem of human error,as well as the solution can be γ spectrometer energy spectrum of software come to a particular position is automatically converted to a count of the precise environmental concentrations calculation.