廠家直銷增塑劑，pvc增塑劑專業廠家全國最低價格
增塑劑
一、分子式：C18H18O5 分子量：314
二、技術指標：
質量等級                                                     一等品
外觀                                                     無色透明或微黃色油狀液體
色澤（APHA）                                              ≤ 40-60
酯含量：%                                                   ≥ 99
酸度：（以苯二甲酸計）%                              ≤ 0.02-0.03
閃點（開杯法）℃                                          ≥ 185
加熱減量（125℃，2小時）%                          ≤ 0.3
熱處理后色度                                           90
比重                                   &nbs