CAJ | 학술논문

　　研究了3种耐热聚乙烯管材专用树脂的结构与性能。它们的共同特征为熔体流动速率低于0.7?g/10?min，密度为0.930~0.944?g/cm3，相对分子质量为（1.5~2.5）×105，可以为窄相对分子质量分布，也可以为中等相对分子质量分布。1-己烯共聚产品与1-辛烯共聚产品性质较为接近，都是窄相对分子质量分布，而1-丁烯共聚产品具有相对分子质量高（2.0×105以上），相对分子质量分布中等（10左右），熔体流动速率低（低于0.3?g/10min）、密度高（大于0.940?g/cm3）、拉伸屈服强度高、弯曲模量高、熔融峰温高、结晶峰温高的特点。相同条件下，1-丁烯共聚产品具有较高的黏度和模量。
　　연구료3충내열취을희관재전용수지적결구여성능。타문적공동특정위용체류동속솔저우0.7?g/10?min，밀도위0.930~0.944?g/cm3，상대분자질량위（1.5~2.5）×105，가이위착상대분자질량분포，야가이위중등상대분자질량분포。1-기희공취산품여1-신희공취산품성질교위접근，도시착상대분자질량분포，이1-정희공취산품구유상대분자질량고（2.0×105이상），상대분자질량분포중등（10좌우），용체류동속솔저（저우0.3?g/10min）、밀도고（대우0.940?g/cm3）、랍신굴복강도고、만곡모량고、용융봉온고、결정봉온고적특점。상동조건하，1-정희공취산품구유교고적점도화모량。
The?structure?and?properties?of?three?kinds?of?thermo-resistant?polyethylene?(PE-RT)?special?resins?for?pipe?use?were?studied.?These?three?PE-RT?materials?commonly?features?melt?flow?index?below?0.7?g/10?min,?density?of?0.930-0.944?g/cm3,?relative?molecular?mass?of?(1.5-2.5)×105?and?narrow?or?middle?relative?molecular?mass?distribution.?The?1-hexene?copolymerized?products?have?properties?similar?to?those?of?the?1-octene?copolymerized?products,?and?both?have?narrow?relative?molecular?mass?distribution.?The?1-butylene?copolymerized?products?have?characteristics?of?high?relative?molecular?mass?(above?2.0×105),?middle?relative?molecular?mass?distribution?(about?10),?low?melt?flow?index(below?0.3?g/10?min),?high?density?(over?0.940?g/cm3),?high?tensile?strength?at?yield,?high?flexural?strength,?high?peak?melting?temperature,?high?peak?crystallization?temperature,?high?viscosity?and?high?modulus?under?the?same?conditions.