THE HISTORY OF PVC WPC FOAM BOARD MACHINE1. The origin of the development of PVC foam board
This time should be said that the history is not long. It was developed in the 1970s and the true industrialization was also in the 1990s. As soon as this material came out, people called it "future wood", and its chemical composition was polyvinyl chloride. Because rigid PVC low foam products are widely used, it can replace almost all products made of wood. Has the ability to compete with wood.
The technology of rigid foam has also developed rapidly in recent years. The United States is very prominent in the development of rigid PVC foam technology, with large investment and high output. Many new products have been developed to make rigid PVC foam products In the field of decorative materials, furniture materials have been industrialized.
The processing technology of rigid PVC foam products has made rapid progress, whether it is equipment, molds or formula technology, all have foaming requirements.
Wood powder or other fillers are added to the PVC foam products. By adding different fillers, the rigid PVC foam products are given different characteristics. Improve the application range of this product in replacing various building materials and decorative materials. At the same time, the surface decoration of rigid PVC foam products is good.
Compared with wood materials, rigid PVC low-foam material has the characteristics of moisture proof, anti-corrosion, insect-proof, flame-retardant, paint-free, non-toxic and tasteless, etc. It also protects against termites. Such products can not only save wood, but also effectively improve people's living environment, and are good indoor and outdoor building materials. PVC low-foam material can replace wood on site
It can also replace other building materials. First of all, it reduces the amount of raw materials, which in turn reduces the cost of the product; reduces the thermal conductivity, improves the thermal insulation, thermal insulation; reduces the thermal expansion.
The products of the current PVC foaming scale mainly include rigid PVC free foaming and crust foaming solid boards, hollow respective boards, rigid PVC foam decorative profiles, pipes, rigid PVC foamed plastic wood products, etc. In the fields of construction, packaging, furniture industry, etc., applications are becoming more and more widespread.
Second, PVC foam board
According to the production process, appearance and performance, PVC foam board can be divided into PVC crust foam board and free foam board.
The PVC skinned foam board is produced by the Celuka process, with a hard skin on the surface, smooth and smooth, high hardness, good mechanical properties, high product accuracy, small thickness error, and strict requirements for molds, formulas, processes, and raw materials.
The PVC free foam board has a loose surface, no skinning, and a fine concave-convex surface. It is beneficial to printing, spraying, and veneering. It can be produced by using a common foaming mold, and the process is relatively easy to control.