Special PVC fabric for fast rolling shutter doorsIts excellent wear resistance is reflected in three aspects: material formulation, structural design, and testing verification. The specific analysis is as follows:
1、 Material formula: synergistic effect of high-density PVC substrate and special additives
1. Basic wear-resistant layer:
Using high-density polyvinyl chloride (PVC) as the substrate, its molecular structure is tight and its surface hardness is high, which can effectively resist daily friction. For example, some products add DOTP environmentally friendly plasticizer (homogeneous transparent process) to make the bonding between PVC molecular chains more stable, and the wear resistance is improved by more than 30%.
2. Special additive reinforcement:
UV resistant agent: such as the UV absorber tested according to ASTM G154-16 standard, it can prevent PVC from aging and becoming brittle under long-term light exposure, indirectly improving its wear resistance life.
Tear resistant fiber: Some high-end products are embedded with polyester fabric fibers (the same material as bulletproof vests) to form a three-dimensional reinforced structure, with a tear resistance strength of ≥ 280N in the X/Y direction, and will not spread or break even if locally damaged.
2、 Structural Design: Multilayer Composite and Surface Treatment Technology
1. Seven layer rolling process:
By combining multiple layers of materials (such as wear-resistant layers, impact resistant layers, sound insulation layers, etc.), complementary performance can be achieved. Among them, the thickness of the surface wear-resistant layer is usually 0.8-1.0mm, and some customized models can reach 2.0mm, which can withstand high-frequency friction such as forklift rolling and instrument dragging.
2. Surface treatment technology:
Matte or concave convex patterns: increase surface friction, prevent slipping during movement, and disperse pressure through patterns to reduce local wear.
Transparent wear-resistant coating: Some products use transparent PVC coating, which not only maintains visual transparency but also enhances wear resistance, suitable for places such as shopping malls and supermarkets that require observation of indoor and outdoor scenes.
3、 Test validation: Standardized wear resistance testing and actual scenario simulation
1. Laboratory testing:
Wear resistance test: Referring to ASTM D4060-14 standard, use Taber abrasion tester to apply 4.9N pressure to PVC fabric, rotate 100 times, and observe the degree of surface wear. The wear and tear of high-quality products can be controlled within 0.1mm, far exceeding industry standards.
Rubbing resistance test: Simulating repeated folding and friction of fabric, high-quality PVC fabric can withstand 9.8N × 1000 rubs without damage, ensuring that the door curtain does not deform during high-frequency opening and closing.
2. Actual scenario verification:
Logistics warehouse: Fast rolling shutter doors need to withstand collisions with hard objects such as forklifts and pallets. High quality PVC fabric door curtains remain flat after 3 years of use, with a wear rate of less than 5%.
Food processing plants require frequent cleaning and exposure to chemical cleaning agents. The chemical corrosion resistance of PVC fabric can prevent surface corrosion and extend its service life.
4、 Wear resistance extension advantage: reducing the total lifecycle cost
1. Low maintenance cost:
PVC fabric door curtains can be wiped clean without waxing or special maintenance, reducing maintenance costs by over 60% annually.
2. Long replacement cycle:
The service life of high-quality PVC fabric door curtains can reach more than 10 years, while traditional rubber door curtains or epoxy flooring need to be replaced every 3-5 years, resulting in lower long-term usage costs.
3. Security Enhancement:
Durable door curtains are not easy to break, which can prevent equipment or personnel damage caused by door curtain tearing, especially suitable for kindergartens with children's activities or fitness centers with high-frequency exercise.
