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Selection Principles Of Crushing Equipment For Waste Plastics
- Aug 16, 2018 -

The selection of plastic crushing equipment mainly depends on the type and shape of crushed materials and the degree of crushing required. Different materials of waste plastics should be used different crushing equipment. Rigid PVC, polystyrene, plexiglass, phenolic resin, urea-formaldehyde resin, polyester resin and so on are a kind of brittle plastics, brittle and fragile, once subjected to compressive force, impact force, very easy to brittle, broken into small pieces, for this kind of plastics suitable for compression or impact crushing equipment; Toughness plastics with high ductility at room temperature, such as polyethylene, polypropylene, polyamide, ABS plastics, etc., are only suitable for shearing plastic grinding equipment, because they are subject to external compression, bending, impact and other forces, generally do not crack, difficult to break, not suitable for the use of brittle plastics. Plastic crushing equipment; in addition, for elastic materials and soft materials, it is best to use low temperature crushing.


In addition, plastic crushing equipment should be determined according to the degree of crushing waste plastics. Compression, impact or shearing crushing equipment should be used when crushing large pieces into small pieces; and grinding equipment should be mainly used when crushing small pieces into fine powder and fine particles.


Due to the influence of external conditions and the effect of light and heat, waste plastics have been aging to varying degrees, and obviously various additives also have varying degrees of loss. In order to improve the quality of recycled products as much as possible, a certain amount of additives should be added in the remanufacturing process to improve the various properties of the recycled products.


Taking into account some of the above factors, the following points should be taken into account when determining recipes.

1. Selection of additives.

2. Determination of additive dosage.

3, the adjustment of the formula.