完美替代沙伯基础5220U 广州炬泓化工
24000元/吨
<font size="5"><span style="line-height: 36px;"><b>完美替代沙伯基础5220U 广州炬泓化工 经济型PC/PBT</b></span></font><br><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US"><br></span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">结构与特点</span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">是聚碳酸酯</span><span lang="EN-US">PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">与丙烯酸酯</span><span lang="EN-US">-</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">苯乙烯</span><span lang="EN-US">-</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">丙腈三元共聚物</span><span lang="EN-US">ASA</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">的合金</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">是一种新型聚合物合金</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">系由西德</span><span lang="EN-US">BASF</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">公司首先制造</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">其性质类似于</span><span lang="EN-US">ABS</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">。但</span><span lang="EN-US">ASA</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">的抗紫外线和抗变黄性极好</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">同时具有良好的光泽、韧性和刚性</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">抗热、抗静电及耐化学性能也很优异。</span><span lang="EN-US">ASA</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">中不含有</span><span lang="EN-US">C=C</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">双键</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">具有较高的玻璃化转变温度</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">但低温抗冲击性不及</span><span lang="EN-US">ABS</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">低负载条件下</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">加入</span><span lang="EN-US">PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">后合金的高温变形性非常小</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">对切口耐冲击强度的改善非常大,</span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US"> </span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">性能</span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">是针对</span><span lang="EN-US">ABS</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">的耐候性差的缺点而开发的工程塑料。它的综合丙烯酸酯的有耐冲击性,耐候性,机械物理性,丙烯酸的耐化学品有性,高硬度,苯乙烯的优良和加工性是为一体的,机械性能好,耐候性优异,特别是在适用于中不涂装在户外直接使用。广泛应用于汽车电子机电日用品户外装饰的领域。</span><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">合金的弯曲比较强度、弯曲模量、拉伸强度与</span><span lang="EN-US">PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">相当,薄壁冲击强度高于</span><span lang="EN-US">ASA</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">,与</span><span lang="EN-US">PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">相当。在厚制品应力开裂、低温冲击、缺口敏感性方面优于</span><span lang="EN-US">PC,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">在抗冲击强度方面显示出良好的协同效应,特别适合于制作结构制品。</span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US"> </span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">加工成型</span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">在成型加工产品时,不影响质量的情况下无法使热量加速通过塑料,一可行的方法即实现短的冷却时间以保证冷却系统能够将热量以所需的速度从模具带走;若不可行,那么冷却系统本身就变成了热量的瓶颈,周期就会很长。如果追求短的冷却时间,那么模塑件的壁越薄,冷却系统的效率就需要越高。不能实现短冷却时间的原因之一是因为部件复杂,很难设置冷却通道;其它的原因可能是与设计的冷却系统不相匹配,或者在冷却通道集结了腐蚀物和水垢。为防止扭曲变形,模塑件须冷却并变得足够坚硬后方可从模具中脱出。当顶杆不再引起永久性变形或者不可接受应力时,即达到时间要求。在脱模过程中发生的任何应力或者变形将取决于部件的几何形状、顶出方式、收缩率以及部件与模具之间的磨擦。</span><span lang="EN-US"> ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">加工时必需对进料系统(浇口</span><span lang="EN-US">/</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">流道)的凝固时间和脱模时间进行平衡。如果进料系统凝固过快,那么就没有保压,这会导致部件的质量欠佳。相对而言,如果在部件脱模以前,进料系统凝固需要很长的时间,那么就造成了生产时间上的浪费。因此,进料系统的尺寸应与部件的冷却时间相匹配。为了找出流道尺寸与壁厚的比率,用这个比率算出相同的冷却时间,我们把冷却时间方程做成等式。</span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US"> </span></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">应用</span></p><p></p><p class="MsoNormal" style="line-height:11.0pt"><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">具有优异的抗寒</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">高耐热性。</span><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">耐候性好</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">推荐用于汽车上漆外部应用</span><span lang="EN-US">,</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">如汽车后视镜、散热器格栅、尾部档板、灯罩等承受日晒和雨淋、强风吹等恶劣条件下的外部部件;</span><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">还用于摩托车面板、野营汽车、小型船壳、冲浪板、园艺灌溉设备、草坪切割机外壳、耐用设备的外壳,如:缝纫机、电话机、厨房设备、卫星天线等全天候的壳体等等。工业生产中</span><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">广泛用于制造轴承、圆齿轮、凸轮、伞齿轮、各种滚子、滑轮、泵叶轮、风扇叶片、蜗轮、推进器、螺钉、螺母、垫片、高压密封圈、耐油密封垫片、耐油容器、外壳、软管、电缆护套、剪切机滑轮套、牛头刨床滑块、、电磁分配阀座、冷陈设备、衬垫、轴承保持架、汽车和拖拉机上各种输油管、活塞、绳索、传动皮带,纺织机械工业设备零雾料,以及日用品和包装薄膜等。</span><span lang="EN-US">ASA/PC</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">在汽车领域大的消费是制造仪表盘,其次制造门板、轮罩、送风机、尾部排气格栅、蓄电池组等。在电子电气领域用于制造办公设备、笔记本电脑、打印机和传真机外壳、移动电话机壳、摄像机壳、</span><span lang="EN-US">CD-ROM</span><span style="font-family:"微软雅黑","sans-serif";mso-ascii-font-family:Tahoma;mso-hansi-font-family:Tahoma">驱动盘、连接器、通讯工具等。</span></p>