Bulk molding compound (BMC) is an amalgamation of thermosetting resin and sliced glass strands in the form of a bulk compound. It is a composite material which is a ready-to-mold, glass fiber reinforced polyester, which finds important applications such as injection molding & compression molding. Bulk molding compounds are either made available in bulk or in logs. Injection molding applications of bulk molding compounds include the manufacture of composite components, such as auto components,
electrical appliances and housings for electrical appliances and tools in bulk volumes for industrial consumption. Bulk molding compounds display advantages in terms of superior properties vis-à-vis standard thermoplastic products. For instance, the glass fibers in bulk molding compounds display higher strength than standard thermoplastics. Bulk molding compounds find diverse applications, such as electrical, automotive and corrosion prevention applications.
Considering these important aspects of applications of bulk molding compounds, the study of the bulk molding compounds market becomes an important read. On the basis of reinforcement type, the bulk molding compounds market is segmented as follows: Glass fiber reinforced bulk molding compounds Carbon fiber bulk molding compounds, On the basis of resin type, the bulk molding compounds market is segmented as follows:, Polyester resin, Vinyl ester resin, Other resins; On the basis of application type, the bulk molding compounds market is segmented as follows: Automotive, Electrical, Electronics, Consumer goods, Others
It has been observed that bulk molding compounds have been finding increasing applications across various industries owing to their superior characteristics, such as superior flame resistance, excellent flow characteristics and better dielectric properties. They display superior performance vis-à-vis other thermoplastic compounds and hence, have been gaining preferential use. In recent times, they are been increasingly used in automotive headlamps, electric circuit breakers, valve covers and housings.
This is on account of their lightweight features and superior thermal resistance.Bulk molding compounds are known to supersede metals such as titanium and steel in terms of specific strength, although titanium and steel display higher ultimate tensile strength. However, specific strength being a relatively more important characteristic due to its positive impact on density, and stiffness, bulk molding compounds help create a tough, manufactured part at a minor fraction of the weight of metals. This has been driving the growth of the bulk molding compounds market at a global level, in the recent times.
It has been observed that thermoplastic bulk molding compounds have been finding preferential use as compared to thermosetting bulk molding compounds in applications, which demand faster production times for parts & components, characteristically lower flame and smoke toxicity and superior durability.In recent times, manufacturers of bulk molding compounds have been focusing on developing advanced bulk molding compound products for the aerospace industry.
For instance, aerospace grade bulk molding compounds with different combination of fiber types have been a trend. Elimination of warping and internal as well as surface defects has been a key research & development area, thereby improving product features, and subsequently contributing to the market growth of bulk molding compounds at a worldwide level. The accessibility of high-tech software tools has also been reducing the complications involved in the design and analysis of these bulk molding compound materials, thereby easing their manufacturing process.
However, there are some disadvantages with regard to the processing of bulk molding compounds. Forinstance, processing of thermoplastic bulk molding compounds are required to be carried out at temperatures. During the cooling process as well, a higher extent of temperature control is necessitated so as to preserve the crystalline nature of the polymer and to attain an even cooling throughout the entire component.
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Examples of some the market participants in the bulk molding compounds market are as follows: Emei (HK) Electronics Ltd., IDI Composites International, Owens Corning, Astar, Citadel Plastics Holding Inc., Premix Inc., Plenco (Plastics Engineering Company), Wacker Chemie AG, Koninklijke Ten Cate BV, Aareplast AG