贺 超,方 帅,许春花,蒙亚州,张 琪,郭玉花,黄震.LDPE/LLDPE/APP阻燃体系的成型工艺和阻燃性能研究[J].包装工程,2012,33(19):54-56,71.
HE Chao,FANG Shuai,XU Chun-hua,MENG Ya-zhou,ZHANG Qi,GUO Yu-hua,HUANG Zhen.Molding Technology and Fire-retardant Properties of LDPE/LLDPE/APP Systems[J].Packaging Engineering,2012,33(19):54-56,71. |
| LDPE/LLDPE/APP阻燃体系的成型工艺和阻燃性能研究 |
| Molding Technology and Fire-retardant Properties of LDPE/LLDPE/APP Systems |
| 投稿时间：2012-06-08 修订日期：2012-10-10 |
| DOI： |
| 中文关键词: 聚乙烯 聚磷酸铵 阻燃 成型 |
| 英文关键词: polyethylene ammonium polyphosphate fire-retardant molding |
| 基金项目:天津市高等学校国家级大学生创新创业训练计划（201210069007） |
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| 中文摘要: |
| 以低密度聚乙烯和线性低密度聚乙烯（60:40）为基础物质，添加阻燃剂聚磷酸铵，构成阻燃体系，研究了阻燃体系的成型加工工艺参数和阻燃性能。研究表明：APP含量为30%时，阻燃性能达到FV-0级；造粒时，螺杆转速选择28~37 r/min，牵引速度选择2.8~5.5 m/min；制造哑铃型试样时，料筒温度在185~200 ℃之间，模具温度在91~105 ℃之间，预热5~10 min，充模时间12~21 s，制造矩形试样时，料筒温度在185~190 ℃之间，模具温度在85~110 ℃之间，预热5~10 min，充模时间8~13 s。 |
| 英文摘要: |
| Low density polyethylene and linear low density polyethylene were used as basic materials and ammonium polyphosphate was added into them to prepare fire-retardant system. The molding technology parameters and fire-retardant properties of the fire-retardant system were studied. The results showed that when ammonium polyphosphate content is 30%, the fire-retardant level can reach FV-0; the rotational speed of main screws is 28~37 r/min, the pulling speed is 2.8~5.5 m/min; when molding dumbbell samples, the cylinder temperature is between 185~200 ℃, the mold temperature is between 91~105 ℃, the warm-up time is from 5 to 10 min and molding time is from 12 to 21 s; when molding rectangular samples, the cylinder temperature is between 185~190 ℃, the mold temperature is between 85~110 ℃, the warm-up time is from 5 to 10 min and molding time is from 8 to 13 s. |
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