炭酸カルシウム配合ポリ塩化ビニルの特徴について―ポリ塩化ビニルから発生してくる塩化水素の捕捉効果について―
Characteristics of Filled Polyvinylchloride by Calcium Carbonate−Effectiveness for Capturing Generated Hydrogenchloride from Polyvinylchloride−
今西秀明・内藤隆之・梅原和夫
Imanishi, Hideaki / Naito, Takayuki / Umehara, Kazuo
Polyvinylchloride has excellent properties as a thermoplastic material. However, when it is molded by heated process, and particularly when it is incinerated, a large amount of hydrogenchloride is generated. For the purpose of capturing generated hydrogenchloride, calcium carbonate was added to polyvinylchloride. As a result of this study, a fine powdery calcium carbonate had a high effectiveness for capturing generated hydrogenchloride from polyvinylchloride. It can be presumed that the high effectiveness depends on powder size or its surface area and not on its shape. Also, the viscosity, bending strength, modulus of elasticity, and Izod impact value were measured for these composite materials made from polyvinylchloride and calcium carbonate. These mechanical properties showed that these composite materials had durability for practical use.
Key words: Polyvinylchloride / Hydrogenchloride / Calcium carbonate /Composite materials