Anti-static shoes use knowledge
Commonly used materials for anti-static shoes
Wearing anti-static shoes is one of the effective and reliable methods for discharging the electrostatic charge of operators. Due to the requirements of enterprise products, the current anti-static shoes not only need anti-static function, but also need to use low dust-reducing materials to suppress The dust generated by the personnel walking in the clean room.
Upper material: anti-static PVC leather, PU leather, canvas, etc.
Sole material: anti-static PVC leather, PU leather, etc.
Anti-static towel leather shoes
2. Characteristics of PU materials and PVC materials
High strength, thin and elastic, soft and smooth, waterproof;
It still has good tensile strength and tortuosity at low temperature, and has good light aging resistance and hydrolysis resistance;
Strong flexibility, appearance and performance are close to natural leather, easy to wash and decontaminate, easy to sew;
The surface is smooth and compact, and can be used for a variety of surface treatments and dyeing.
3. Maintenance methods for PU materials and PVC materials
Wash with water and detergent, avoid petrol cleaning;
Can not dry clean, only wash, recommended washing temperature 40 ° C, drying temperature 50 ° C;
Can not be exposed to sunlight;
Do not touch some organic solvents, avoid bleaching
4. Comparison of PU shoes and PVC shoes
Conductive PVC and PU materials are common materials for making antistatic shoes. The full name of PVC is "polyvinyl chloride", which is a type of plastic. The full name of PU is "polyurethane", which is a type of synthetic leather. There are many differences between the two, and the products made with these two materials are also very different in performance.
Category
PU shoes
PVC shoes
Material
The PU leather is made by processing the second and third layers of natural leather, and the residual leather is treated by a special film-forming and laminating process, and the surface of the leather is covered with a polyurethane PU surface layer. PVC leather is an artificial leather that was first introduced as a substitute for leather fabrics. It is made by laminating PVC with plasticizer and other additives.
leather
Craftsmanship
The base fabric of the PU is a canvas PU material having good tensile strength. In addition to being coated on the upper surface of the base fabric, the base fabric may be contained in the middle so that the outer cloth is not observed. In the manufacturing process, the plastic granules are first hot melted into a paste, and uniformly coated on the base of the T/C knitted fabric according to the specified thickness.
Physical
It is better, resistant to tortuosity, good in softness, high in tensile strength and breathable. The soft and hard nature of PU is related to the molecular structure. Poor, high temperature and soft, low temperature hard and brittle, no gas permeability. The hardness of PVC is related to the content of plasticizer.
Comfort
Softer, better comfort, long-term standing does not feel tired.
Not easy to produce odor.
Harder, less comfortable, and tired for a long time.
Easy to produce odor.
Performance
ESD performance is good, generally in the 104~109Ω ESD performance is poor, generally in the 105~1010Ω
Price
Higher. In general, the price of PU leather is more than double the price of PVC leather. Lower
usage time
Longer, generally can be washed more than 50 times. Shorter, usually washed about 30 times.
Style
More less
Different method
1, from the corner, PU base cloth is much thicker than PVC
2. PU is closer to the feel of leather than PVC. The feel of PU is softer, and the feel of PVC is harder.
3, with fire to burn, PU tastes much lighter than PVC.
4. Method of soaking with gasoline. Use a small piece of fabric, put it in gasoline for half an hour, and then take it out, the PVC leather will become hard and brittle, but the PU leather will not.