At the 22nd China International Composite Materials Industry Exhibition, many merchants showed us the rapid development of the composite materials industry. Polyurethane resin due to its The advantages of good toughness, fast curing, environmental protection and non-volatility make composite materials a new “eye-catching highlight”. As people master and improve the molding technology and process of polyurethane and fiber composites, polyurethane, as a new alternative material, has entered the field of composite materials that have long been dominated by unsaturated resins and epoxy resins, and has gradually exerted its unique advantages.
In recent years, polyurethane composite materials have developed non-foaming high-tech technologies such as pultrusion, winding, and vacuum infusion. Its application fields are gradually recognized by the market and have now been extended to innovative applications such as window frames, cable trays, telegraph pole cross arms, and container floors. Today we will talk about the current “new internet celebrity” in the field of composite materials – polyurethane pultrusion materials.
“Polyurethane pultrusion material is a kind of high-hardness polyurethane elastomer as the base material and glass fiber as the reinforcing material. A high-strength, high-modulus, lightweight polymer composite produced by a continuous pultrusion process.” Its application areas have expanded from the original bathtub to surfing and snowboarding to today’s window frames, container floors, etc. Innovative applications.
Compared with other resins, polyurethane pultruded materials not only greatly increase the strength, waterproof, rust-proof and corrosion resistance of the product and other physical properties, while greatly reducing the weight of the product and reducing subsequent multi-link costs such as production, transportation, installation and maintenance. As far as the cable trays that are currently maturely used are concerned, the cost of raw materials (resin, glass fiber) can be reduced by 8%-10% from the perspective of weight reduction alone. At the same time, due to the automation of equipment and the improvement of material performance, pultrusion The speed can reach greater than 1 meter/minute, and its production efficiency is equivalent to doubling.
What is even more gratifying for us is that the construction environment has been effectively improved and enhanced, and the polyurethane resin does not contain benzene. Volatile substances such as ethylene are eliminated, and there is no pungent smell in the production site, minimizing the impact on the environment and workers’ health. Multiple advantages make polyurethane composites a new choice for downstream related applications.
Wanhua Beijing’s polyurethane pultruded compound WANEFLEX®650 is mainly used in cable trays, telegraph pole cross arms, and anti- In fields such as glare panels, window frames and door frames, it has excellent mechanical and electrical properties and can fully meet the special use requirements of power grid and other industries; the operation site is safe, environmentally friendly and has no irritating smell. At the same time, on the basis of ensuring high product quality, we achieve The pultrusion speed is greater than 1 meter/minute, providing customers with efficient, low-cost and reliable solutions.
(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|solidamineetc., suitable for sponges , molding, high resilience, self-crusting, PU toys and various hard foam and semi-hard foam and other end products.
