With the rapid development of PU (polyurethane) synthetic leather technology and the EU’s imminent restriction on the use of PVC automotive leather, some new models of international brands have begun to gradually use PU leather , and tends to be PU leather with high physical properties. The research and application of PU synthetic leather closely follows the international technological trend. It started early, with a high starting point, and developed rapidly. It has become the center of PU synthetic leather in the world.
In the context of the automobile industry being listed as a pillar industry in my country, the development of the automobile industry has brought prosperity to my country’s automobile interior parts industry and synthetic leather and other related industries. With the increase in the localization rate of automobiles and the requirements for automobile interior functions and environmental protection, we have replaced imported products, improved the grade and quality of automobile interior leather, accelerated the research and development and application of PU synthetic leather in automobile interiors, and become a domestic synthetic leather manufacturer. important opportunities for development.
Dry PU automotive interior leather
The processing of dry PU synthetic leather is to apply a layer of PU resin solution on the surface of the fabric. In order to improve the bonding strength with the base fabric, a two-component adhesive layer resin can be used; at the same time, during the processing process, a microporous polymer layer can also be formed on the surface of the fabric by pre-foaming or adding surfactants. , thus having breathable micropores similar to the wet process. Because of its low price, good feel and physical properties, it is widely used in car armrests and seat cushions.
Wear-resistant, scratch-resistant PU leather
At present, domestic PU synthetic leather manufacturers with strong strength are actively developing and applying new functional PU resin slurries, combined with selected base fabrics with excellent feel and physical properties, through special Processing and post-finishing, a new type of wet PU synthetic leather for automotive interiors was developed. Compared with traditional materials, this new material has better mechanical properties, hydrolysis resistance, heat resistance, oxidation resistance and wear resistance. It has been widely used in car gear armrests, seats, door guards, etc. aspect.
In particular, the highly wear-resistant and highly durable polyurethane synthetic leather developed has the characteristics of strong genuine leather feel, soft hand feel, good elasticity, luxurious appearance, and natural luster.
Environmentally friendly zero-solvent PU automotive interior leather
Since DMF (dimethylformamide) is commonly used as the solvent in the production process of PU synthetic leather at home and abroad, the wet process uses water to extract the solvent in the wet slurry. When the polyurethane resin is solidified on the fabric, the volatile solvent content reaches 30% to 40%, which is not good for health and environmental protection.
Environmentally friendly zero-solvent PU automotive interior leather uses polyols in pure PU liquid to be modified and connected to different types of material systems, which brings new aspects to the production process. Space for technological breakthroughs. Its physical properties are also very excellent: (1) Excellent hydrolysis resistance; (2) Wear and scratch resistance; (3) High tear strength; (4) Strong flame retardant properties; (5) Volatile organic compound (VOC) content is almost is zero. At present, zero-solvent PU automotive interior leather has gradually been recognized and welcomed by automobile manufacturers, and its development prospects are very broad.
With the increasing demand for PU synthetic leather in automobile interiors, domestic PU synthetic leather manufacturers must seize the opportunity of the growing demand for PU leather in automobile parts and pay attention to technological research. , constantly developing new materials and new processes, while auto parts manufacturers strengthen independent innovation capabilities in response to consumer demand, actively explore the application of PU leather in automotive interior products, and establish domestic PU leather as core competitiveness in the field of automotive interior applications. Capable own brand.
(www.gsiyuan.com) Deeply engaged in the segmented industry of polyurethane raw materials – amine catalysts; research, development and compound production of various types of amine catalysts; main products: A-33|33LV|CS90|C225|GSY9727| SMP|Z-131|solidamine, etc., suitable for end products such as sponge, molding, high rebound, self-crusting, PU toys and various hard and semi-hard foams.
