CAJ | 학술논문

在全密度聚乙烯装置上采用Unipol气相法工艺，以1-丁烯为共聚单体生产高强度薄膜专用高密度聚乙烯（HDPE）DGDB6097。DGDB6097的熔体流动速率（负荷21.6kg）为7.00～13.00g/10min，密度为0.945～0.951g/cm3，拉伸屈服应力大于或等于19MPa，拉伸断裂应力大于或等于23MPa，断裂标称应变大于或等于500%。与相同工艺生产的普通薄膜专用线型低密度聚乙烯相比，DGDB6097的密度高、拉伸强度大；与国内市场常见的高强度薄膜专用HDPEDGDA6098相比，DGDB6097的力学性能、结晶性能、相对分子质量及其分布以及其薄膜的各项性能相当。加工应用表明，DGDB6097的加工性能和薄膜力学性能均满足用户要求。
재전밀도취을희장치상채용Unipol기상법공예，이1-정희위공취단체생산고강도박막전용고밀도취을희（HDPE）DGDB6097。DGDB6097적용체류동속솔（부하21.6kg）위7.00～13.00g/10min，밀도위0.945～0.951g/cm3，랍신굴복응력대우혹등우19MPa，랍신단렬응력대우혹등우23MPa，단렬표칭응변대우혹등우500%。여상동공예생산적보통박막전용선형저밀도취을희상비，DGDB6097적밀도고、랍신강도대；여국내시장상견적고강도박막전용HDPEDGDA6098상비，DGDB6097적역학성능、결정성능、상대분자질량급기분포이급기박막적각항성능상당。가공응용표명，DGDB6097적가공성능화박막역학성능균만족용호요구。
Special high density polyethylene (HDPE) resin for high-strength films, grade DGDB6097, was produced on a Unipol gas-phase polyethylene plant with 1-butene as comonomer. DGDB6097 had melt flow rate of 7.00-13.00 g/10 min, density of 0.945-0.951 g/cm3, tensile stress at yield more than or equal to 19 MPa, tensile stress at break not less than 23 MPa and nominal fracture strain greater than or equal to 500%. DGDB6097 had higher density and tensile strength compared with general HDPE film grades produced with the same process. The mechanical properties, crystallization properties, relative molecular mass and its distribution of DGDB6097 were similar to those of common HDPE high-strength film grades in domestic market, and the films made of DGDB6097 and its counterparts had similar properties. The processing application of DGDB6097 indicated that the processability of the resin and the mechanical properties of the films made of the resin could satisfy the requirements of the users.