(1) The starting crystallization temperature of long-chain branched eppPF814 is about 10℃ higher than linear eppT36F, PF814 is 127.723℃, and T36F is 116.665℃;

(2) Adding long-chain branched polypropylene to linear polypropylene, even if the increase is 10%, the crystallization temperature of the blend is about 10°C higher than that of pure linear polypropylene, and the increase of PF814 is increased from 10% to At 50%, the initial crystallization temperature of the blend does not change much between 128.130℃, which means that only a few long-chain branched polypropylenes can be added to the linear polypropylene to increase its initial crystallization temperature.

(3) The initial nucleation rate of long-chain branched polypropylene is higher than that of linear epp, and the initial nucleation rate of the blend is also higher than that of pure linear polypropylene.

(4) The total crystallization rate of long-chain branched polypropylene and blends is higher than that of pure linear polypropylene.

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