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Laizhou Haoran Machinery Equipment Co., Ltd
Woven bag polypropylene granulator
NegotiableUpdate on 05/18
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Overview
The woven bag polypropylene granulator (also known as plastic granulator or modified plastic granulator) is an industrial equipment based on a parallel and co rotating twin-screw extruder structure, produced by Guangzhou Putong Experimental Analysis Instrument Co., Ltd. The core design adopts a building block principle, and the length to diameter ratio, arrangement and combination of the barrel and screw can be adjusted according to the material characteristics to meet the processing needs of thermoplastic resins such as polypropylene (PP) and polyethylene (PE), as well as thermosetting resins
Product Details
Woven bag polypropylene granulator(also known as plastic granulator, modified plastic granulator) is an industrial equipment based on a parallel and co rotating twin-screw extruder structure, produced by Guangzhou Putong Experimental Analysis Instrument Co., Ltd. The core design adopts a building block principle, and the length to diameter ratio, arrangement and combination of the barrel and screw can be adjusted according to the material characteristics to meet the processing needs of thermoplastic resins such as polypropylene (PP) and polyethylene (PE), as well as thermosetting resins
Polypropylene, English name: Polypropylene, Japanese name: Polyphenylene Molecular formula: C3H6nCAS login number: 9003-07-0 Abbreviation: PP is a thermoplastic resin made by polymerizing propyleneClassified into isotactic polypropylene according to the position of methyl groups（isotaeticPolyProlene）、 Random polypropyleneAtacticPolyPolypropylene and syndiotactic polypropyleneThere are three types of synthetic polypropylene.
PP is a semi crystalline material that is harder and has a higher melting point than PE. Due to the brittleness of homopolymer type PP at temperatures above 0 ° C, many commercial PP materials are made by adding random copolymers of 1-4% ethylene or higher ratios of ethylene contentThe copolymer type PP material has lowerHeat Deflection Temperature(100 ℃), low transparency, low glossiness, low rigidity, but with strongerImpact resistance strength， The impact strength of PP increases with the increase of ethylene content. PP'sVicat softening temperatureIt is 150C. Due to its high crystallinity, this material has excellent surface stiffness and scratch resistance. PP does not have environmental stress cracking issues. Usually, PP is modified by adding glass fibers, metal additives, or thermoplastic rubber. The flow rate MFR range of PP is between 1 and 40. PP materials with low MFR have better impact resistance but lower tensile strength. For materials with the same MFR, the strength of copolymer type is higher than that of homopolymer type. Due to crystallization, the shrinkage rate of PP is quite high, generally ranging from 1.8% to 2.5%. And the directional uniformity of shrinkage is much better than that of materials such as PE-HD. Adding 30% glass additive can reduce the shrinkage rate to 0.7%. Both homopolymer and copolymer PP materials have excellent resistance to moisture absorption, acid and alkali corrosion, and dissolution. However, it is resistant to aromatic solvents such as benzene and chlorinated hydrocarbons（carbon tetrachloride）Solvent and other substances have no resistance. PP does not have the same antioxidant properties as PE at high temperatures.
Woven bag polypropylene granulator
