| abstract |
The present invention provides a kind of impact of heat-resistant HTPP, glossiness 136-141%, tensile strength 39.7-41.6MPa, and 157-160 DEG C of Vicat softening point, notch impact strength 5.8-6.2kJm ‑2 ；It further include its preparation process, comprising: the preparation of PP modified materials, the preparation of nucleating agent and blending, the preparation of the PP modified materials, comprising: T30S pretreatment, the preparation of oil phase, water phase preparation and polymerization, the preparation of first raw material and extrusion；It is blended using modified nucleating agent obtained with heat-resistant impact PP modified materials, optimum process technology parameter is obtained by orthogonal test, seek and optimize HTPP PP Pipe Compound new preparation process new method, obtain satisfactory heat-resistant impact HTPP PP Pipe Compound: elastic property is good, volatilization mist formation function admirable, bending modulus is high, and intensity is high, bending modulus 2552-2664MPa, bending strength 35.7-36.0MPa. |