Formula analysis and technology of plastic particles

Time:2021-11-19 14:26:01 Click 5

Plastic particles refer to particles processed from waste plastics. It is widely used. In terms of building materials, recycled particles can be used to manufacture various building components, plastic doors and windows, mortar barrels, etc. In the mechanical industry, after special formulation, the recovered particles can be used to manufacture machine parts, such as various forms of bearings, sealing rings, gears, various blades, etc. In daily life, recycled particles can also be used to make all kinds of plastic bags, furniture, stationery and other household appliances and plastic products.

1、 Formula analysis of plastic particles

1. Plastic particle formula analysis project

Chemical composition analysis, flexibility, solution fluidity, heat resistance, transparency, viscosity, hardness, etc.

塑料颗粒

2. Analysis range of plastic particle formula

Special plastic particles, polypropylene particles, polyethylene particles, general plastic particles, engineering plastic particles, PVC particles, polystyrene particles, polyester particles, nylon particles, polyformaldehyde particles, thermosetting plastic particles, polycarbon silicone particles, functional polymer plastic particles, etc.

3. Standard for formula analysis of plastic granules

JIS k6737-1999 plastics - polyvinyl chloride resins - Determination of particle number of impurities and foreign matters

NF t51-355-1999 plastics - cellulose acetate - Determination of insoluble particles

ASTM d7486-2014 Standard Test Method for measuring powder and dust particles in plastic particles by wet analysis

SH / T 1541-2006 thermoplastic particle appearance test method

ASTM d6290-2005e1 Standard Test Method for color determination of plastic particles

CSN 64 0532-1993 plastics - Test Method for yellow index of polypropylene natural particles

2、 Formulation and process of plastic particles

1. Preparation before batching: resin screening, powdered additive grinding, plasticizer filtration, preparation of Color Masterbatch powder, drying of raw materials, heating and melting of bulk additives, etc.

2. Formula weighing: input kneader or internal mixer for mixing and plasticizing raw materials. Firstly, the feeding amount shall be estimated according to the equipment volume and feeding coefficient. Weigh accurately according to the feeding amount.

3. Extrusion granulation: mainly control extrusion temperature, screw speed, cutter speed and pellet cooling. The granular material has no clay particles, uniform particle size and good plasticization.