Type of waste plastic bottle recycling technology

Bottle class has cool and refreshing beverage bottle, mineral water bottles, liquid food bottle, cosmetic bottle, etc. , the materials used in polyethylene ( PE) Polyvinyl chloride ( PVC) , terephthalic acid ethyl ester ( Polyester) ( PET) And so on. Usually water bottles made of PVC or PET, carbonated beverage bottles made from PET, cool and refreshing beverage bottle, bottle of liquid food with PVC, PE, detergent bottles, cosmetics bottles, milk bottles, most of lactic acid bacteria beverage made of PE.

the recycling all kinds of bottle type generally by the manual sorting first, and then according to the different material recycling, at present, there have been a lot of technology and equipment used in various bottles recycling

( 1) PET bottle recycling, PET bottle used for Coca-Cola, Pepsi, Sprite carbonated drinks, such as the current most is composed of PET bottles and HDPE bottle, bottle cap material, HDPE, trademark for two-way stretch polypropylene ( BOPP) Membrane, using EVA adhesive stick on the bottle, pet bottle recycling reuse way have regeneration after granulation. Alcoholysis and other methods. Regardless of the method, the first to separate the polyester bottle with other bottle, also need to separate the polyester bottle and bottle.

(1) separate: mix of extra bottle is entered into the crusher crushing conveyor belt, then through density separation.

(2) regeneration granulation: regeneration granulation available extruder. Approved by the separation of PET scrap the extruder extrusion granulation made from grain, in order to avoid water absorption decreased viscosity properties when it is squeezed, should be dry before extrusion. PET pellet purpose is as follows:

a, to manufacture PET bottles, recycled aggregates can not be used in direct contact with food, but can be used in the middle layer of three layer of PET bottle, then made into carbonated beverage bottle.

　　b. Spinning manufacture fibers, recycled PET material material can be used to made fiber spinning, used as a pillow core, plate, sleeping bags, mat, etc.

　　c. Glass fiber reinforced material, the glass fiber enhanced regeneration of PET has good heat resistance and mechanical strength, can be used to produce auto parts, such as heat resistant car wheel cover, the heat distortion temperature can reach 240 degrees. Bending elastic modulus of 9500 MPa, the bending strength of 214 MPa, the impact strength of 15 kf/m2.