高填充量·精制—氢氧化镁Mg(OH)2
阻燃·***·无烟 (消烟)·阻滴·高平滑度·高物理强度
◎ #9119 Mg(OH)2阻燃剂系精选一级原料,经高新精密机械设备活性处理。按美国杜邦公司·UNIOR厂技术参数,制造出超微细·无粗颗粒·片型针状粒子之一级产品。
◎ #9119 Mg(OH)2系经活性处理,受热分解时,分解出结晶水(H2O)及活性氧化镁(MgO); 水能吸收大量潜热,降低材料在火焰中的温度,同时***可燃性气体,进一步分解,阻止燃烧。活性氧化镁(MgO) 能催化氧化烟量,大大减少生烟量和烟逸出的速度,同时能吸收大量的物质—高分子自由基和碳(燃烧时,沉积为灰),阻止燃烧,并延迟材料引燃时间,亦具有极优异的***—具毒性之HCL的生成·降低人员伤害。
◎ #9119 Mg(OH)2为超细无粗颗粒,经表面处理活性,高细度其***的表面平滑度·高物理强度…等。是高填充量的基本条件,建议用量:对总量约20~40%,依材质·订单要求而定。
◎阻燃剂的运用,因世界性的高度重视与越来越高标准的要求下,不断地研发进步,是***的趋势,氢氧化镁Mg(OH)2亦因具备可高温加工,释水起始温度为340℃,释水量约31%,释水时吸热量1370KJ/Kg (氢氧化铝Al (OH)3释水起始温度为220℃,对加工温度较高的高分子复合物,不可使用;释水量约32%,释水时吸热量为1170 KJ/Kg,抑烟能力亦比氢氧化镁Mg(OH)2较差);无烟(消烟)·***·阻燃·阻滴·高物理强度·高填充量·降低成本…等,更加广泛被使用,需求量快速增长也成了事实。
◎阻燃剂的运用新概念,因高分子材料·复合材料·工程塑胶…等均不断***陈出新,加工方法亦不断进步、多样化,要更经济降低成本达到UL94V-0之标准,多种阻燃剂同时配合、组合使用,这是现在世界大家不断研究发展的课题。
◎ #9119 Mg(OH)2因同时具有多种功能特质·特性,若以 #9119Mg(OH)2 做为高填充量为降低成本的基础,再配合各种种类的阻燃剂,不论是一般性要求·低毒·***·无烟,均能很容易成功地配出达到UL94V-0标准或一般性要求,同时也能兼顾材质特性要求及各种物理强度的指标。可与#9119 Mg(OH)2共同组合的阻燃剂,如:***系、氯系、磷系或较受争议之:卤系·三氧化二锑…等。
物理化学特性分析
活性表面处理剂(日本信越 CRD513) %········································ 0.3
白度 %GE···································································· 红牌92·蓝牌88
吸油值 g/100g················································································ 37.2
容积密度 g/cm3·············································································· 0.47
平均粒度µm·················································································· 3.0
MICRON NAUGE µm 0~1 3 5 6 8 10 12 15
VOL% 37 70 89 93 97 98.8 99.7 100
(德国、日本、美国粒径均以雷射测定仪测定,国际都以μ来计算,44μ=325目,敬请参照换算)
比表面积cm2/g··············································································· 25000
Mg(OH)2 含量%·············································································· 95.1
***强脱水温度℃············································································· 440
340℃~500℃脱水量%································································· 30.5
氧指数 %······················································································· 26.6
******密度 Dm············································································· 291.9
(注:氧指数、烟密度试样为50%PE+50%Mg(OH)2阻燃剂)
三氧化二铁Fe2O3··········································································· 0.36
二氧化矽SiO2················································································· 0.96
氧化钠Na2O··················································································· 0.05
三氧化二铝Al2O3··········································································· 0.43
氧化钾K2O····················································································· 0.77
ALL NUMERICAL VALUES ARE NOMINAL. THIS SUMMARY DOES NOT
C***TITUTE A MATERIAL SPECIFICATION.