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2022-07-31
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Bayer materials technology: one-step forming of high-quality automobile interior and exterior decoration parts in September, 2013, Leverkusen - personalized and harmonious interior design is an important selling point of the automobile. The interior surface should be of high quality, good touch and durable to withstand daily wear and tear. The automotive industry is committed to reducing component manufacturing costs and significantly improving production efficiency. The direct coating/direct skinning process developed with the participation of Bayer materials technology can meet all the above requirements. This process, combined with a new thermoplastic substrate, enables the coating components to be formed efficiently in one step by using ABS

Bayer materials technology: one-step forming of high-quality automotive interior and exterior trim parts

the surfaces of various components can be designed according to the personalized needs of customers. Dr. Johannes Scherer, project manager of direct coating/direct skinning process, said: "we have transparent and color coatings for customers to choose, and their finishes can achieve matte, high gloss or piano paint like surfaces. The touch can be set as hard or soft. We can also establish subsidiaries at home and abroad through mold tables and research and development, and align the two sections of the broken samples with the central plane at the fracture to form cobblestone and structured surfaces."

this R & D achievement is a part of Bayer materials technology's comprehensive material scheme for future automotive interior design, and will be unveiled for the first time at the company's booth (booth A75, hall 6) during the 2013 International Plastics and Rubber Exhibition (k exhibition) in Dusseldorf, Germany. Visitors can also visit the exhibition to see how the production components are manufactured using direct coating technology. At booth D24 in hall 15, our partner Klaus mafi will use polycarbonate blend baybrand to produce a sample design component of automotive interior parts, and use two different hard coatings for finishing

production of single mold

the direct coating technology adopts the injection of thermoplastic matrix in the first cavity of the two hole mold, and then the matrix can be directly transferred to the second cavity using a variety of technologies. Process engineering expert Jan helmig explained: "this will form a narrow gap and then fill it with two-component polyurethane paint." Depending on the desired function, Bayer Bayflex system or coatings based on desmodur and desmophen series raw materials can be used. These coatings are provided by one of the company's coating customers. Janhelmig said, "after the mold is opened, the parts to be coated can be taken out immediately for further processing. The surface texture of the mold cavity is perfectly copied onto the polyurethane coating."

optimized substrate materials

Bayer materials technology can provide a variety of matrix materials (polycarbonate) of Makrolon series and baybrand and makroblend series of polycarbonate blends. These materials have outstanding heat resistance and impact strength. The coating products specially developed for this process also have excellent adhesion to polyurethane system and strong weather resistance

take the brand-new grade material of baybrand for automobile interior decoration as an example. Compared with the standard blend, it has not been published in public publications or international conferences; The adhesion of the coating is significantly improved. Makroblend series materials show excellent low-temperature impact strength, weather resistance and medium resistance, making them ideal for outdoor applications. When the automobile is exposed to various weather conditions (including ultraviolet radiation), good coating adhesion is particularly critical for automobile exterior trim parts

the scheme developed by Bayer materials technology can provide matching systems for customers and end users, and meet the expectations of high-quality materials with strong decorative surfaces. These products are already available for customer projects

multi-directional appearance and touch

the base material can ensure that the components are light and solid, while the decorative appearance and comfortable touch come from the coating. Bayer materials technology partners provide a variety of solvent-free coating systems for the direct coating process. These systems are based on raw materials from desmodur and desmophen series, with excellent weather resistance, chemical resistance and scratch resistance. Self healing paint systems may also be used

according to different requirements, transparent and color coatings are available to provide the required high gloss, matte or structured surface. The tactile coating of the interior can also provide different softness. For example, Bayflex polyurethane system can use direct skinning process to provide the appearance and touch of natural leather for a series of car interior compartments

customized materials and services

Bayer materials technology makes full use of its rich experience to support its customers through component research and development, such as injection mold design and simulation, and process engineering. The company provides plastic samples of the project, and provides customers with suggestions on appropriate coating formulation and selection. Bayer materials technology's technology center is well equipped with injection molding and reaction injection molding (RIM) production facilities, where customers' projects can be developed and carried out

"the biggest technical challenge is to develop and implement powerful and highly automated processes along the entire value-added chain," Scherer said. "This is also the primary goal of our current activities and cooperation with our partners."

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