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Overcome the three problems of low-melting finger polymerization, high-efficiency additive formulation, and extrusion granulation
On August 29, PetroChina announced that its first β-PPH polypropylene pipe special material product HT03B was successfully rolled off the 150,000-ton/year polypropylene plant of Hohhot Petrochemical, with a total production of 750 to.
The test results show that the flexural modulus of the HT03B product is greater than 1350MPa, the impact strength is greater than 110kJ/m2, the thermal deformation temperature is greater than 108℃, and the performance indicators are better than similar products in the mark.
The development and production of β-PPH products are difficult, and the market share of domestic materials is relatively l.
The project adopts the special material technology of β-PPH polypropylene pipe developed by China Petroleum and Petrochemical Research Institu.
On this basis, Hohhot Petrochemical has formulated an industrial test plan with strong operability, including the whole production process of low-hydrogen polymerization process switching, switching of polypropylene products of different crystal forms, extrusion granulation, design of transition material grades, analysis and testing, e.
β-PPH is a kind of homopolypropylene with high relative molecular weight and low melting index, and its efficiency is more than 1500 yuan per ton compared with ordinary polypropyle.
