In daily life, PVC Plastic Bags people contact more plastic bags (film), General polyvinyl chloride (PVC) and polyethylene (PE) plastic film (bag), how to distinguish between them, the following summarized several simple methods:
Shan Touch method
Touch with the hands of the lubrication, the surface like a layer of wax (chemical called wax), which is non-toxic polyethylene film bag, and PVC film feel some hair sticky.
Shan Jitter Method
With the hand jitter, the sound is crisp, PVC Plastic Bags the quality is easy to float is polyethylene film bag. The low volume of the hand jitter is polyvinyl chloride film bag.
Shan Combustion method
Flammable fire, the flame is yellow, burning paraffin-like oil dripping, and candles burning when the gas, is non-toxic polyethylene film bag. If it is not easy to burn, from the fire is extinguished, the flame is green, PVC film bag.
Shan Immersion Water Law
The plastic bag immersed in water, with the hand pressed into the water, can surface to the surface of polyethylene, sank into the bottom of polyvinyl chloride (polyethylene density is less than water, PVC density is greater than water, at room temperature is about 0.92G CM3 and 1.4g Cm3 respectively).
In addition, the copper wire is also desirable, in the fire red, PVC Plastic Bags and then, the copper wire with the test plastic film contact, produce chemical changes, and then dipped in the plastic elements of the copper wire back into the flames. It should be carefully observed, if there is a colorful, dazzling green flame, it is indicated that this plastic material contains chlorine elements, belong to polyvinyl chloride material.
PVC can be divided into soft PVC and hard PVC. The hard PVC accounted for about 2/3 of the market, soft PVC accounted for 1/3. Soft PVC is commonly used in flooring, PVC Plastic Bags ceilings and leather surface, but because soft PVC contains softener (which is also the difference between soft PVC and hard PVC), easy to brittle, not easy to save, so its scope of use has been limited. Hard PVC does not contain softener, so flexibility is good, easy to shape, not easy to crisp, non-toxic non-polluting, long save time, so has a great development and application value. Hereinafter referred to as PVC. The essence of PVC is a vacuum blister film, used for all kinds of panel surface packaging, so also known as decorative film, adhesive film, used in building materials, packaging, medicine and many other industries. Building materials industry accounted for the largest proportion, 60%, PVC Plastic Bags followed by the packaging industry, there are a number of other small-scale applications of the industry.