Animal Laboratory Liquid Hanging Bottle White Plastic Veterinary Medicine Vaccine Bottle Can Be Customized
Medicinal plastic vaccine vials are PP and PE. Polyolefin plastic containers produced by one-step "injection-blow" process; Liquid medicine filling should choose PET, PP "injection - pull - blow" process production of plastic containers.
PET is a milky white or light yellow highly crystalline polymer with a smooth and glossy surface. Creep resistance, fatigue resistance, friction resistance and dimensional stability is good, small wear and high hardness, with the greatest toughness in thermoplastics: good electrical insulation performance, little affected by temperature, but poor corona resistance. Non-toxic, weather resistance, good stability against chemicals, low water absorption, resistance to weak acids and organic solvents, but not heat resistant water immersion, not alkali resistance. PET resin has high glass transition temperature, slow crystallization rate, long molding cycle, long molding cycle, large molding shrinkage, poor dimensional stability, brittle crystallization molding, low heat resistance.
PP is a semi-crystalline material. It is harder than PE and has a higher melting point. Because the homopolymer type PP is very brittle at temperatures below 0 ° C, many commercial PP materials are random copolymers with 1-4% ethylene or clipper copolymers with higher ratios of ethylene content. Copolymer type PP materials have a lower thermal distortion temperature (100 ° C), low transparency, low gloss, low rigidity, but have a stronger impact strength.
