Defending champion Argentina qualified for the 2026 World Cup on Tuesday even before kickoff against Brazil. Bolivia’s ...

At a smoke-filled warehouse in the Indonesian capital Jakarta, hundreds of young men and women, some clad in hijabs, throw ...

Alysa Liu became the first American women's figure skating world champion in nearly two decades Friday night, dethroning ...

A few hours before he connected on the three-run homer Monday night that sent him soaring into the regular season, Nolan ...

Michigan’s magical March run is over. Too many self-inflicted mistakes. Too many offensive rebounds allowed. A huge second-half flurry.

Atlanta Drive GC staged an unlikely comeback from a steep deficit to win the inaugural TGL championship in style, 4-3 over ...

No matter what has happened during the Orono Spartans 2024-25 basketball season, there’s only one game that really matters.

Australia's Alex de Minaur put an end to Brazilian talent Joao Fonseca's challenge at the Miami Open, outlasting the ...

BOSTON (AP) — Alysa Liu became the first American figure skating world champion in nearly two decades on Friday night, dethroning three-time defending champion Kaori Sakamoto with a brilliant ...

If Southern California wants to win its first women's national championship in 41 years, the Trojans will have to find a way ...

聚四氟乙烯（Polytetrafluoroethylene，简写为PTFE），俗称“塑料王”“铁氟龙”“特氟龙”，是一种以四氟乙烯作为单体聚合制得的高分子聚合物，化学式为(C2F4)n。这种材料自问世以来，便因其独特的性能和广泛的应用领域而备受瞩目。本文将详细介绍聚四氟乙烯的 ...

铁氟龙注塑原料的特性 铁氟龙的化学结构为C2F4，其分子外围由氟原子包围，这种独特的结构赋予了铁氟龙一系列出色的性能。首先，氟原子的存在使其表面光滑且几乎对所有物质具有排斥性，因此铁氟龙被称为“不粘材料”。这一特性使得铁氟龙在注塑成型后 ...