摘要:運用正交實驗從LLDPE、MPE、LDPE、HDPE這4種PE樹脂中確定聚乙烯薄膜的基體樹脂，通過薄膜的拉伸強度和撕裂強度比較，我們選擇LLDPE和MPE共混作為PE薄膜的基體樹脂。采用3種不同的抗靜電劑對PE樹脂基體的改性，研究了抗靜電劑的加入對PE薄膜的力學性能和電性能的影響。結(jié)果發(fā)現(xiàn)，隨著抗靜電劑的加入，PE薄膜的表面電阻下降，拉伸強度升高，而撕裂強度有所下降，其中抗靜電劑3號母粒抗靜電效果最好，母粒份數(shù)達到15%時，表面電阻從1.2×1015Ω降到6.12×109Ω。

關(guān)鍵詞：正交實驗；聚乙烯薄膜；抗靜電劑；表面電阻

Abstract：Using Orthogonal experiments to determine the matrix resin of the PE film from LLDPE,MPE,LDPE,HDPE,the four kinds of the PE resin ,we choose blends of LLDPE and MPE as the matrix resin of a PE film through the tensile strength and tear strength of the PE film , then we use three different kinds of the antistatic agent to modify PE matrix resin , and research the mechanical properties and electrical properties of PE films with the antistatic agent.The results showed that with the addition of antistatic agent,the surface resistance of the PE film decreased, the tensile strength increased, the tear strength declined. In the three different kinds of the antistatic agent,the antistatic effect of the third antistatic agent masterbatch is the best. When we add copies of the third antistatic agent masterbatch up to 15%,the surface resistivity dropped from 1.2 × 1015Ω to 6.12 × 109Ω.

Key words：Polyethylene film  Orthogonal experiment  antistatic agent    surface resistance