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PP Woven Shopping Bags

PP Woven Shopping Bags are divided into seam bottom bags and seam bottom bags according to the sewing method. It is currently widely used as a packaging material for fertilizers, chemical products and other items. The main production process is to use plastic raw materials through extruded film, cutting, uniaxial stretching into flat yarn, after warp and weft knitting to obtain products, generally called woven bags.
Light weight
Plastics are generally lighter, and the density of plastic woven fabrics is about 0, 9-0, 98 grams per cubic centimeter. Commonly used polypropylene braid. If no filler is added, it is equal to the density of polypropylene. The plastic weave application has a density of 0, 9-0, 91 g/cm 3 of polypropylene. The braid is usually lighter than water.
High breaking strength
The plastic braid is a material with high flexible breaking strength in plastic products, which is related to its molecular structure, degree of crystallization, drafting orientation and the like. It is also related to the type of additive. If the specific strength (strength/specific gravity) is used to measure the plastic braid, it is higher or closer to the chemical resistance of the metal material.
Plastic braid for inorganic
Organics have good corrosion resistance below 110 degrees Celsius and have little effect on them for a long time. It has strong chemical stability to solvents and greases. When the temperature rises, carbon tetrachloride, xylene, turpentine, etc. can swell to it. Cigarette nitric acid, fuming sulfuric acid, halogen elements and other strong oxides will oxidize it, and it has good corrosion resistance to strong bases and common acids.
Good wear resistance
The friction coefficient between pure polypropylene plastic braids is small, only about 0, 12 is similar to nylon, and the friction between the plastic braid and its articles is lubricated to some extent.
Good electrical insulation
Pure polypropylene braid is an excellent electrical insulator. Since it does not absorb moisture and is not affected by the humidity in the air, the breakdown voltage is also high, and its dielectric constant is 2, 2, 2, and 6. Its volume resistance is very high. The insulation of plastic woven fabric is not equal to using it as insulation material.
Environmentally resistant.
At room temperature, the plastic woven fabric is virtually completely free of moisture, and the water absorption rate within 24 hours is less than 0,01%, and the water vapor permeability is also low. At low temperatures, it becomes brittle and brittle. The plastic braid does not mold.
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