As we all know, polypropylene staple fiber is widely used in engineering field, and the market prospect is broad, then you know how to identify high quality polypropylene staple fiber? Qinfeng provides the following six methods for your reference:

 1. Water bath comparison method:

Take 500ml of water into two cups, separate from the 0.4g standard single fiber, mix and mix for 10 seconds, investigate, the quality is evenly dispersed, suspended in water; the residual can not be evenly dispersed or suspended in clusters or clusters Or underwater.

 2. Odor identification method:

High-quality fiber: environmental protection, taste is light and has no effect; residual fiber: pollution, strong taste and strong influence.

 3. Sunshine Law:

The residual polypropylene staple fiber, because of the cost reduction, the base has not been treated with anti-ultraviolet treatment, and the polypropylene staple fiber is single in the sun, and the strength is lost in two years, so the residual polypropylene staple fiber is difficult to carry forward in the concrete for a long time. . As long as the site inspection at the construction site (to severely distinguish the filaments to be inspected and the polypropylene fiber shorts on the site), after a long period of exposure to the sun, then the tensile strength can be detected.

 4. Remove the moisture method:

The residual polypropylene staple fiber is rich in water (it is hard to feel only by the hands), and the water content can be measured by drying or drying. Although the fiber is low in price, it contains water. Assuming a water content of 5%, then 1 kg of water-rich fiber is actually only 95% fiber, and the fiber price will be 1.05 times the original price.

 5. Compare visual methods:

High-quality fiber, length and regularity, uniform thickness, light and bright white. Wire, filament, thick wire, coiled wire, oily silk, agglomerate and impurities are low or no quality is good;

6. Detection method:

polypropylene staple fiber produced from recycled materials, its fiber:

1 low tensile strength, usually <350Mpa;

2 elongation is large, usually >60%;

3 The alkali resistance is poor, because both the concrete and the hardened concrete are strongly alkaline (pH≥12). Under this environment, the strength of the fiber will gradually decrease, so the effect in concrete will be small. The foundation cannot improve the mechanical function of concrete.

The identification method of polypropylene staple fiber is roughly the same, and I hope to help everyone.

"Qinfeng" brand polypropylene staple fiber has superior moisture permeability and quick drying property, good combability and spinning performance, and can produce soft and tough fabrics. The fabric is light in weight, warm in warmth, delicate in hand and comfortable to take. , acid and alkali resistant. At the same time, it has the ability to dissolve quickly, good filling and sound insulation.

So good quality, what are you waiting for? Hai'an County Qinfeng Chemical Fiber Co., Ltd.  is waiting for your good news here!