FR461 上海三爱富 F46 总代理 深圳 东莞 FR461 上海三爱富 F46 总代理 深圳 东莞 FR461 上海三爱富 F46 总代理 深圳 东莞 FR461 上海三爱富 F46 总代理 深圳 东莞 FR461 上海三爱富 F46 总代理 深圳 东莞
优点:耐候性耐腐蚀耐蠕变抗氧化耐辐照耐高温热性能好电绝缘性好耐化学稳定高机械强度摩擦系数低
FR461 上海三爱富 F46 总代理 深圳 东莞
我司供应以下产品:
FEP FR461 上海三爱富
用途: 其它
特性备注:是四氟乙烯与全氟丙烯的共聚物,具有优良的热稳定性,突出的化学惰性,优良的电气绝缘性和低摩擦系数。可采用热塑加工工艺进行加工。
重要参数: 熔体流动速率:3.05 g/10min 密度:2.145 g/cm3 拉伸强度:25 MPa 断裂伸长率:300 %
生产厂商:上海三爱富新材料股份有限公司
介绍:
FEP,F-46树脂和聚四氟乙烯虽都由碳氟元素组成,碳链周围完全被氟原子包围着,但F-46其大分子的主链上有分支和侧链。这种结构上的差别对于材料在长期应力下的温度范围上限来看,无很大影响.
FEP,F-46的上限温度为200℃,而聚四氟乙烯的使用温度是260℃。但是,这种结构上的差别,却使F-46树脂具有相当确定的熔点,并可用一般的热塑性加工方法成型加工,使加工工艺大为简化。这是聚四氟乙烯所不具备的。这便是用六氟丙烯改性聚四氟乙烯的主要目的。
FEP,F-46中六氟丙烯的含量对共聚体的性能是有一定的影响。当前生产的F-46树脂的六氟丙烯的含量,通常在14%-25%(质量分数)左右。
详解:
informed Valentine for the first time of the madness of her father and the death of her brother, she became pale, a heavy sigh escaped from her bosom, and tears, not the less painful because they were silent, ran down her cheeks; her happiness cost her very dear. Morrel looked around uneasily. "But," he said, "the count's generosity is too overwhelming; Valentine will be satisfied with my humble fortune. Where is the count, friend Lead me to him." Jacopo pointed towards the horizon. "What do you mean" asked Valentine. "Where is the count -- where is Haidee"
"Look!" said Jacopo.
The eyes of both were fixed upon the spot indicated by the sailor, and on the blue line separating the sky from the Mediterranean Sea, they perceived a large white sail. "Gone," said Morrel; "gone! -- adieu, my friend -- adieu, my father!"