This Paper Sheet Cutter Machine is applied to sheet cut of the color printed laminated film, paper and board reel materials. It has the features of synchronous (or actuating motor) controlling fixed length cut, photocell EPC (web guide), rolling material, pneumatic lifting system, operating platform automatic up and down, automatic paper delivery system. It is simple to operate, easy to maintain, consistent reliable and ease of use are enhanced by servo drive system and user-friendly operator controls. It has excellent cut quality and with very attractive price, is good choice for in house paper converting for printing and packaging company.
To improve PET performance, PET can be alloyed with PC, elastomer, PBT, PS, ABS, PA.
PET (reinforced PET) is mainly processed by injection molding. Other methods include secondary processing methods such as extrusion, blow molding, coating and welding, sealing, machining, and vacuum coating. Dry thoroughly before molding.
Polyethylene terephthalate is obtained by transesterification of dimethyl terephthalate with ethylene glycol or esterification of terephthalic acid with ethylene glycol to synthesize bishydroxyethyl terephthalate. Polycondensation reaction is produced. It is a crystalline saturated polyester with an average molecular weight of (2-3)×104, and the ratio of weight average to number average molecular weight is 1.5-1.8. The glass transition temperature is 80 ° C, Martin heat is 80 ° C, the heat distortion temperature is 98 ° C (1.82 MPa), and the decomposition temperature is 353 ° C. Has excellent mechanical properties. High rigidity. High hardness, low water absorption and good dimensional stability. Good toughness, impact resistance, friction and creep resistance. Good chemical resistance, soluble in cresol, concentrated sulfuric acid, nitrobenzene, trichloroacetic acid, chlorophenol, insoluble in methanol, ethanol, acetone, alkanes. Use temperature -100 ~ 120 °C.
Bending strength 148-310MPa
Water absorption 0. 06%-0.129%
Impact strength 64.1-128J/m
Rockwell hardness M 90-95