PVC foam board production process:
PVC resin + additives → high-speed mixing → low-speed cold mixing → conical twin-screw continuous extrusion → die shaping (skin foaming) → cooling structure shaping → multi-roller traction → cutting and processing products → collection and inspection.
Key points of PVC foaming process control:
Plastic foaming molding is divided into three processes: the formation of bubble nuclei, the expansion of bubble nuclei and the solidification of foams. For PVC foam sheets with added chemical foaming agents, the expansion of bubble nuclei has a decisive influence on the quality of foam sheets. PVC is a straight-chain molecule with a short molecular chain and low melt strength. During the process of bubble nuclei expanding into bubbles, the melt is not enough to cover the bubbles, and the gas easily overflows and merges into large bubbles, reducing the product quality of the foam sheet.
Advantages:
PVC foam board has good heat insulation, sound insulation, light load-bearing performance, and is superior to other light solid plastic and other thermal insulation materials. It has the advantages of simple operation, high degree of mechanization, time saving and labor saving. PVC foam board can be used as the insulation layer for roof insulation and exterior wall insulation. It has unparalleled insulation performance and adhesion to the structural layer, and has many advantages such as convenient construction, environmental protection, time saving, and improved efficiency.
PVC foam board uses
(1) Partitions on the walls of buildings such as residences, offices, and public places.
(2) Bathroom door panels, building interior walls, elevated floors, and modular houses.
(3) Room door panels, equipment in clean rooms, and curtain walls.
(4) Screen partitions, high-end desktops, and anti-corrosion projects.
(5) The board surface is flat and can be directly screen-printed or computer-cut for advertising signs, building material signs, landscape signs, etc. It can also be carved into shapes.
(6) Frame mounting baseboards, barn and laboratory insulation.
(7) Container materials, special cold insulation projects. Insulation and cold insulation projects for shipyards, fishing boats, yachts, etc.
(8) Refrigeration (storage) warehouse wall materials, air conditioning ducts.
(9) Supermarket partitions, decorative panels for storage cabinets in department stores, display panels, furniture combination wall cabinets, low cabinets, and high cabinets.
(10) Other uses: formwork, drainage channels, sports equipment, aquaculture materials, coastal moisture-proof facilities, water-resistant materials, art materials, and lightweight partitions.
Media Contact
Company Name: Qingdao Tracy Future Tech Plastic Co., Ltd.
Email: Send Email
Country: China
Website: https://www.tgtextrusion.com/