MatWeb - Material Property Data 用 MatWeb 登广告!    Register Now
越过59,000 以上, 金属、塑料、陶瓷和合成物的数据资料库。
MatWeb - Material Property Data 主页  •  搜寻  •  工具  •  供应商  •  文件夹  •  有关我们  •  常用问题  •  登录   •  English English English 
  搜寻方法:  高级先进 | 材料类型 | 特性 | 构成份  | 商标  | 制造商
    Search

Engineering Composites Properties

Composite materials include some of the most advanced engineering materials today.  The addition of high strength fibers to a polymer matrix can greatly improve mechanical properties such as ultimate tensile strength, flexural modulus, and temperature resistance. Examples are illustrated in the table below.

Typical Values of Filled and Unfilled Polymers for Injection Molding

  Ultimate Tensile
Strength (MPa)
Flexural Modulus (GPa) Deflection Temperature at
1.8 MPa load (°C)
Unfilled With 30% Glass Fiber Unfilled With 30% Glass Fiber Unfilled With 30% Glass Fiber
Polyetheretherketone 90 150 4 10 160 285
Polyphenylene Sulfide 70 140 5 11 120 260
Epoxy 70 150 2.5 25 175 200
Phenolic 60 90 3 20 180 250
Thermoset Polyester 60 140 3 8 130 220
ABS 40 90 2.5 7 90 110

Additives can also be included in polymers for reasons other than thermo-mechanical property improvements.  For example, graphite, PTFE, or molybdenum disulfide are added to polymers as lubricants to lower the coefficient of friction or wear rate in tribological applications such as bearings or slide plates.

MatWeb has entries for well over 8000 polymers, including both thermoplastics and thermosets, which have been reinforced through the addition of glass fiber, carbon fiber, aramid fiber, wood, or mineral reinforcements.  Not all of these are cutting edge products; some merely include inexpensive inorganics such as calcium carbonate or talc as a way of achieving improved dimensional stability in commodity grade plastics such as polypropylene.

Since the vast majority of polymer-based composites are generally processed and sold as polymers, MatWeb has categorized them according to the base resin in our material property data search tools.  Some manufacturers of composite materials do not even disclose the identity or quantity of reinforcing fibers for competitive reasons.

MatWeb has other structural composite materials in addition to filled polymers.  For example, you can find 'Metal Matrix Composite' listed in the "Nonferrous Metal' section of our Material Type Search or 'Composite Fibers' and 'Composite Core Material' listed under 'Other Engineering Materials'.

A good strategy to find the composite material of choice for your application from the MatWeb Property Search is to pick a category such as polymers, thermoset, or epoxy and specify a minimum tensile strength or flexural modulus from the property field.  Two MatWeb materials categories on our Search and Index page that explicitly target composites are 'Carbon Fiber/Thermoset Composite' and 'Composite SMC' (Sheet Molding Compound).  SMCs consist of polymer resin and reinforcing agent (glass or carbon fiber) produced and sold in continuous sheets.  SMCs, usually thermoset-based, often have longer fibers and higher fiber content than composites produced for injection molding or extrusion.  This can result in a stronger and stiffer product, but the ability to form complex shapes from SMCs is limited is limited.

<meta http-equiv=Content-Type content="text/html; charset=UTF-8">
请读关于材料数据的使用许可协议和我们的隐私权。询问或评论有关 MatWeb? 请与webmaster@matweb.com 联系。我们感谢您对 MatWeb的参与。

本站点由 Automation Creations, Inc. 设计和维护。这个网站的内容, MatWeb 的商标,与 "MatWeb" 由 Automation Creations, Inc.版权1996-2006拥有 。 MatWeb 意欲为个人使用 , 非商业用途。这个站点的内容、结果和技术数据,未经由 Automation Creations, Inc. 允许, 不可以被电子,摄影或实质上地再生产或自动化创作。