【 Dongguan xiang near 】 Introduction to PP plastic packaging bottles of advantages and disadvantages

English full name Polypropylene PP plastic, is our chemistry learned Polypropylene, is another development after nylon resin fine varieties, and it is a kind of high density, high side chain, linear polymer crystallization will, PP for crystalline polymer, commonly used plastic PP in the lightest, density is only 0. 91g/cm3（ Smaller than water) 。 General plastic, PP had better heat resistance, the thermal deformation temperature is 80 - 100 ℃, can in boiling water. PP has good resistance to stress cracking resistance, high bending fatigue life, commonly known as the 'hundred fold glue'. The comprehensive performance of PP is superior to the PE, PP product qualitative light, good toughness, good chemical resistance. It has excellent comprehensive performance. Not when color with a white translucent, waxy; Lighter than polyethylene. Transparency also relatively good polyethylene, polyethylene hardened. Properties: light plastic, density is only 0. 9 g/cm3 processing property shall not be obliged to preheat and dry advantages: 1, easy to dyeing 2 good chemical resistance, good wet resistance 3, 4, high hinge features 5, resistance to impact faults: 1, the complex of special-shaped extrusion difficult to 2, easy is broken down by ultraviolet (uv) 3, 4, easy to joint oxidation can produce PP plastic USES: cosmetic bottles, lotion bottle, cosmetic cream bottle, health care products, food, medicine, such as widely used. Polypropylene also includes copolymer of propylene and a small amount of ethylene. PP aggregate is ecru, cylindrical particles, particles is bright and clean, the size of the particles in arbitrary direction of 2 mm to 5 mm, odourless non-toxic, no mechanical impurities. This product with high purity acrylamide as the main raw material, ethylene as comonomer, using highly active catalyst in 62 ℃ ~ 80 ℃ and below 4. Under the pressure of 0 mpa bullishness instead should be the production of polypropylene powder, then through drying, mixing, extrusion, granulation, screening, into polypropylene granules. The density of 0. 90 g/cm3～0. 91 g/cm3, which is the lightest of general plastic one. Plastic bottle production with various materials and various techniques, such as PP plastic, raw material must pass under a certain temperature, heat of mixing and then let it melt completely, and then filling, pressure, cooling and demoulding stage, and then by the refined details become product quality; This process, it is very need to be careful, one thousand damage to the texture of the product, or form a inferior products, gram weight is not up to standard, the pressure also is to have a certain strength, the injection is more used in cosmetic plastic bottle supplier factories, so the cost of the PP plastic injection molding will be relatively higher. Dongguan xiang plastic products, is have 10 years of professional bottle blowing injection for the plastic container manufacturer, specialized in HDPE bottle, PP bottle, PET, PS bottle, widely used in health care products, food, cosmetics, pharmaceutical packaging, etc. Free hotline: 0769 876388118 if you need a large number of production, customized, wholesale plastic bottles, welcome to our website consultation: http://www. dgxianglin。 Com + recommended products MORE bottle PET health products bottle PET health products bottle PET health products bottle PET care bottle PET health products bottle PET health products bottle PET health products square bottle PET health products plastic PET health products bottle PET health products bottle PET health products bottle PET health products' Bowling bottle 】 PET health products bottles [ New arrival] Pet health products bottles 【 Preview 】 Acrylic health food bottle PS supplement bottle PS health food bottles of special tear cover cover