pp kop tætningsfilm：Hvad er det lavet af?

pp kop tætningsfilm：Hvad er det lavet af?

Pp film er polypropylen film, en termoplastisk harpiks fremstillet ved anvendelse af polymerisation af propylen. Almindeligvis tyk, svært, high tensile strength, may be used for greenhouse film, bearing baggage, etc.

Polypropylene is a non-toxic, odorless, tasteless, opalescent, enormously crystalline polymer with a density of handiest zero.90 — zero.91g /cm3. It’s far one of the lightest kinds of all plastics. It’s far specifically solid to water, in the water absorption fee is best 0. 01%, the molecular weight of approximately eight thousand a hundred and fifty thousand.

Polypropylene isn’t proof against oxidation at high temperatures. Bidirectional polypropylene movie is an critical packaging fabric in plastic merchandise. According to information, the arena’s plastic used in packaging bills for 35% of the total consumption of plastic.

1, pp cup sealing film-performance

Polypropylene has excessive crystallinity and everyday structure, so it has notable mechanical residences. The absolute price of mechanical residences of polypropylene is higher than that of polyethylene, but it’s miles still a low range in plastic substances, og dens trækkraft kan bedst opnås 30 mpa eller lidt højere grad.

Polypropylen med større isometrisk indeks har bedre trækenergi, men med stigningen af ​​det isometriske indeks, effekten af ​​stoffets elektricitet falder, handler dog ikke længere efter at have reduceret til en bestemt pris.

2, pp kop tætningsfilm-træk ved

Det er hårdere end pe og har en bedre smeltefaktor.

Due to the fact homopolymer pp temperature above 0c may be very brittle so many business pp substances are delivered 1~four% ethylene random copolymers or better ratio ethylene content clamp copolymers.

Polymer pp materials have decrease thermal twisting temperature (100c), low transparency, low gloss, low rigidity, but have stronger effect power. The power of pp extended with the increase of ethylene content.

The vicar softening temperature of pp is 150c. Because of the excessive crystallinity, the floor stiffness and scratch resistance of this material are superb.

Pp has no environmental strain cracking trouble. Normally, pp is modified by means of including glass fiber, steel additives or thermoplastic rubber.

The mfr of pp ranges from 1 til 40. Pp cloth with low mfr has better impact resistance but lower tensile electricity. For substances with the identical mfr, the electricity of copolymer type is higher than that of homopolymer kind.

Due to crystallization, the shrinkage of pp is pretty excessive, commonly 1.8~2.5%. Og kursens ensartethed af svindgebyr er en hel del højere end pe-hd og forskellige materialer. Tilføjelse 30% glasadditiv kan mindske krympningen til nul,7 %. Homopolymer og copolymer pp stoffer har en enorm modstandsdygtighed over for fugt, syre- og alkalikorrosionsbestandighed, opløselighedsresistens. Men, det har ingen modstand mod aromatisk kulbrinte (bestående af benzen) opløsningsmidler, kloreret kulbrinte (carbontetrachlorid) opløsningsmidler, og så videre. Pp har desuden ikke oxidationsmodstand ved høje temperaturer som pe.

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Shantou Kaixuan Packaging Co.,Ltd

Direkte fabriksfokus på emballage over 20 flere år,især i farvetryk,blister- og taskefremstilling. Integreret i design,produktion og salg. Kaixuan fabrikken dækker et område på 20.000㎡,udstyret med en 10000 niveau støvfrit værksted,300m/min 12 farve højhastigheds dybtryk maskine,automatisk højhastigheds blistermaskine med tysk teknologi,otte-sidet forseglingsposefremstillingsmaskine og andet posefremstillingsudstyr af høj standard.

Ingen benzen Ingen ketonblæk. I mellemtiden, vi bruger benzenfri og ketonfri,blæk og andre miljøvenlige materialer.Den daglige kapacitet kunne nå 150 tons,opfylder absolut dine behov i Safe,Effektiv og sund.

Afslutningsvis,the pp cup sealing film is made of polypropylene and contains a reactive adhesive. This adhesive, when heated, creates a seal between the cup and the film. The film can be used to seal cups before or after they are filled with hot or cold liquids, or food products.

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