Scholarlink

<p>In the present study, we investigated the segregation behavior of a plasticizer, i.e., dibutyl phthalate (DBP) in a polymer, i.e., polystyrene, subjected to a temperature gradient. We confirmed homogeneous distribution without phase separation when the DBP content was ≤ 15%. A sample film containing 10% DBP was annealed in a compression-molding machine, in which the top and bottom plates were held 3&#xa0;mm apart at 200 and 120&#xa0;°C, respectively. After exposure to the temperature gradient, a DBP gradient distribution was confirmed in the thickness direction: there was a high DBP content at the high-temperature side and a low DBP content at the low-temperature side. The result indicates that a plasticized polymer adopts a plasticizer concentration gradient, i.e., a graded structure, when subjected to a temperature gradient. </p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Segregation behavior of dibutyl phthalate plasticizer in polystyrene subjected to a temperature gradient

  • 期刊论文

  • 发表日期：

    2025年11月28日

查看全文
  • Thi Kim Thoa Huynh,
  • Quoc Viet Do,
  • Masayuki Yamaguchi

摘要

In the present study, we investigated the segregation behavior of a plasticizer, i.e., dibutyl phthalate (DBP) in a polymer, i.e., polystyrene, subjected to a temperature gradient. We confirmed homogeneous distribution without phase separation when the DBP content was ≤ 15%. A sample film containing 10% DBP was annealed in a compression-molding machine, in which the top and bottom plates were held 3 mm apart at 200 and 120 °C, respectively. After exposure to the temperature gradient, a DBP gradient distribution was confirmed in the thickness direction: there was a high DBP content at the high-temperature side and a low DBP content at the low-temperature side. The result indicates that a plasticized polymer adopts a plasticizer concentration gradient, i.e., a graded structure, when subjected to a temperature gradient.