The second factor affecting the toughening effect of plastic extrusion materials

The second factor that affects the toughening effect of plastic extrusion materials is the characteristics and dosage of the toughener.

①. The influence of the particle size of the dispersed phase of the toughening agent - For elastomer-toughened plastics, the characteristics of the matrix resin are different, and the optimal value of the particle size of the dispersed phase of the elastomer is also different. For example, the optimal particle size of rubber in HIPS is 0.8-1.3 μm, the optimal particle size of ABS is about 0.3 μm, and the optimal particle size of PVC-modified ABS is about 0.1 μm.

②. The influence of the amount of toughening agent - there is an optimal value for the amount of toughening agent, which is related to the particle spacing parameter;

③. The influence of the glass transition temperature of the toughening agent - generally, the lower the glass transition temperature of the elastomer, the better the toughening effect;

④. The influence of the interface strength between the toughening agent and the matrix resin - the influence of the interface bonding strength on the toughening effect is different in different systems;

⑤. The influence of elastomer toughener structure - related to elastomer type, cross-linking degree, etc.

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