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无需添加红磷即可实现阻燃性能

作者:   来源:朗盛   评论:0 点击:

 
    。朗盛提供红磷阻燃聚酰胺66化合物的替代品
    。无卤阻燃聚酰胺6和66化合物
    。优异的热性能和机械性能
 
  上海,2019年2月22日——红磷是一种成熟应用于聚酰胺66的阻燃添加剂。即使少量红磷也足以使热塑性塑料具有良好的耐火特性,同时几乎不会对机械性能产生任何影响。然而,聚酰胺66最近价格大涨,这是因为聚酰胺66基础树脂和红磷的价格都有所上升。因此,特殊化学品公司朗盛注意到,市场对以其他方式发挥阻燃作用的聚酰胺6和聚酰胺66高性能替代材料的需求不断增长,特别是在电气/电子和IT行业。“我们的产品系列包括合适的无卤阻燃化合物,这些产品具有类似的有效阻燃性能,在某些情况下甚至效果更好。其中聚酰胺6化合物更是性价比极高,”高性能材料(HPM)业务部应用开发人员Alexander Radeck介绍道。通过HiAnt服务,朗盛可以帮助客户在更换材料时达到需求、交付等方面的标准。
 
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  朗盛为其开发合作伙伴提供的HiAnt服务包括开展灼热丝试验等符合标准的阻燃测试。
 
  可生产浅色产品,不会造成接触腐蚀
 
  与红磷化合物不同,朗盛的化合物可以有任何颜色,包括浅色。这一点非常加分,因为颜色是设计过程中的重要元素,并且在许多应用中是组件安全标志的特征。这些化合物的另一个优点是,当金属在温暖潮湿的环境中与阻燃添加剂接触时更不易于腐蚀。此外,从职业卫生的角度看,这些化合物也更容易操作。
 
  耐电痕性更高
 
  红磷阻燃聚酰胺66化合物通常含有20%-40%的玻璃纤维。玻璃纤维含量为25%的化合物的替代材料包括Durethan AKV25FN04聚酰胺66,尤其还包括Durethan BKV25FN04聚酰胺6。两者都具有相似的拉伸模量、断裂强度和断裂伸长率、简支梁冲击强度和密度。电压为600V时,两者的耐电痕性(相对漏电起痕指数CTI A,IEC 60112)略高。Durethan AKV25FN04特别适用于需要高热变形温度或达到V-0防火等级(样品厚度为0.4 mm)的应用(依据美国测试机构Underwriters Laboratories Inc.的UL 94可燃性测试)。Durethan BKV25FN04在0.75 mm的样品厚度下防火等级为V-0。两种化合物均获得UL的f1认证(样品厚度不低于0.75 mm)。这意味着它们也适用于室外受到水和紫外线辐射影响的组件,例如光伏系统的连接器。
 
  阻燃性能更优
 
  Durethan AKV30FN04聚酰胺66以及Durethan BKV30FN04和BKV45FN04聚酰胺6化合物是含有红磷和约35%玻璃纤维的聚酰胺66化合物的优良替代品。所有这三种材料在UL 94测试中都具有更好的防火等级,达到了V-0标准(0.4 mm)。根据UL 746B,它们的耐热性(相对温度指数,RTI)也更高。Durethan BKV45FN04含有45%的玻璃纤维增强材料,可满足严格的强度和刚性要求。凭借优异的阻燃性能,该产品通过了关于轨道车辆防火的欧洲标准DIN EN 45545(最高等级:风险等级3)要求的测试。这适用于要求集R22和R23中列出的组件,例如扼流线圈。
 
  朗盛的一些卤素阻燃材料也适合替代红磷阻燃聚酰胺66,且具有成本效益。Durethan AKV25F30聚酰胺66和Durethan BKV25F30聚酰胺6是其中两个例子。它们具有更好的阻燃性能,这在符合IEC 60695-2-1(最终产品的灼热丝易燃性试验方法,GWEPT)的最终产品灼热丝试验中得到了充分证明。
 
 
  关于朗盛
  朗盛是全球领先的特殊化学品供应商,2017年销售总额为97亿欧元,在全球拥有约15,500名员工,分布在33个国家的59个生产基地。朗盛的核心业务包括开发、生产及销售化学中间体产品、添加剂、特殊化学品与塑料。朗盛已被纳入领先的道琼斯可持续发展指数(DJSI全球及欧洲)和富时社会责任指数(FTSE4Good)中。
 
 
  朗盛中国
  2005年1月31日,朗盛股票首次在法兰克福证券交易所挂牌上市,朗盛化学(中国)有限公司正式运营。如今朗盛在大中华区拥有约1,500名员工,15家下属企业,7个研发中心以及8处生产基地。朗盛与当地的合作伙伴密切合作,开发以市场为导向的解决方案以满足当地市场需求。
 
  Achieving flame-retardant properties without red phosphorus
 
 。LANXESS offers alternatives to polyamide 66 compounds containing red phosphorus
 。Polyamide 6 and 66 compounds with halogen-free flame-retardant packages
 。Excellent thermal and mechanical performance 
 
  Shanghai – February 22, 2019 – Red phosphorus is an established flame-retardant additive for polyamide 66. Even small amounts of it are enough to provide thermoplastics with good fire-resistant characteristics with scarcely any impact on the mechanical properties. However, such compounds have recently undergone significant price increases, as both polyamide 66 base resin and red phosphorus have become more expensive. Consequently, specialty chemicals company LANXESS is noticing growing demand for high-performance alternative materials based on polyamide 6 and 66 that feature flame-retardant characteristics in other ways, particularly in the electrical/electronic and IT industries. “Our range includes suitable compounds with halogen-free flame-retardant packages that exhibit similarly effective flame-retardant properties and in some cases are even better. The polyamide 6 compounds in particular boast an excellent price-performance ratio,” explains Alexander Radeck, application developer in the High Performance Materials (HPM) business unit. Through its HiAnt service, LANXESS helps customers to meet the standards defined, for example, in requirement specifications and delivery specifications when they switch materials.
 
 
  Potential for light colors, no contact corrosion
 
  Unlike their counterparts containing red phosphorus, the compounds from LANXESS can be given any color, including light shades. This is a point in their favor as color is an important element in design and is used in many applications as a feature of component safety markings. A further strength of the compounds is that metals are much less prone to corrosion when they come into contact with their flame retardant additives in warm, moist environments. Moreover, the compounds are also easier to handle in terms of occupational hygiene.
 
  Improved tracking resistance
  
  Polyamide 66 compounds with flame-retardant mechanisms based on red phosphorus are usually available with glass fiber content of between 20 and 40 percent. Alternative materials to compounds with glass fiber content of 25 percent include Durethan AKV25FN04 polyamide 66 and especially Durethan BKV25FN04 polyamide 6. Both exhibit similar tensile moduli, strength at break and elongation at break, Charpy impact strength and densities. At 600 volts, their tracking resistance (comparative tracking index CTI A, IEC 60112) is somewhat higher. Durethan AKV25FN04 is particularly suited to applications that call for high heat distortion temperatures or V-0 classification at a specimen thickness of 0.4 millimeters in the UL 94 flammability test from US testing organization Underwriters Laboratories Inc. (UL). Durethan BKV25FN04 is classified under V-0 at a specimen thickness of 0.75 millimeters. Both compounds are f1-listed by UL (starting at 0.75 millimeters). This means that they are also suitable for components tha will be outdoors and subject to the effects of water and UV radiation, such as connectors for photovoltaic systems. 
 
  Better flame-retardant properties
 
  Durethan AKV30FN04 polyamide 66 and the Durethan BKV30FN04 and BKV45FN04 polyamide 6 compounds make excellent substitutes for polyamide 66 compounds containing added red phosphorus and glass fiber contents around 35 percent. All three materials attain better classifications in UL 94 testing, achieving V-0 standard (0.4 millimeters). Their thermal endurance (relative temperature index, or RTI) as per UL 746B is also higher. With 45 percent glass fiber reinforcement, Durethan BKV45FN04 meets stringent requirements for strength and rigidity. With its outstanding flame-retardant properties, it passes the tests required by European standard DIN EN 45545 for fire protection on railway vehicles with the top grade of Hazard Level 3. This applies to components listed in requirement sets R22 and R23, such as choke coils.
 
  Some halogenated compounds from LANXESS also constitute suitable and cost-effective alternatives to polyamide 66 types with red-phosphorus-based flame-retardant packages. Two such examples are Durethan AKV25F30 polyamide 66 and Durethan BKV25F30 polyamide 6. Their assets include better flame-retardant properties, which are evident in glow-wire testing on end products in line with IEC 60695-2-1 (glow-wire end product test, or GWEPT), for example. 
 
  About LANXESS
  LANXESS is a leading specialty chemicals company with sales of EUR 9.7 billion in 2017. The company currently has about 15,500 employees in 33 countries and is represented at 59 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of chemical intermediates, additives, specialty chemicals and plastics. LANXESS is listed in the leading sustainability indices Dow Jones Sustainability Index (DJSI World and Europe) and FTSE4Good.
 

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