Flexible thermoplastic polyolefin anti-seepage material and preparation method thereof
A thermoplastic polyolefin and anti-seepage material technology, applied in the field of anti-seepage materials, can solve the problems that anti-seepage materials cannot be used for a long time, and achieve excellent puncture resistance, excellent durability, and convenient construction
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Embodiment 1
[0032] This embodiment provides a flexible thermoplastic polyolefin anti-seepage material, including the following raw materials in parts by weight: 65 parts of thermoplastic polyolefin resin, 35 parts of filler, 0.1 part of processing aid, 0.1 part of light stabilizer 2020, 5 parts of pigment,
[0033] Among them, in this embodiment, antioxidant 1010 is selected as the processing aid, titanium dioxide is selected as the pigment, and 1500-mesh surface-coated calcium carbonate is selected as the filler.
[0034] The thermoplastic polyolefin resin in this embodiment includes a mixture of polypropylene and thermoplastic polyolefin elastomer (the mass ratio of the two is 3:2), and the thermoplastic polyolefin resin includes a rigid segment and a flexible segment, and the flexible The chain segment accounts for more than or equal to 35% by weight of the polymer, the rigid segment is a polypropylene or / and polyethylene structural unit with an ordered structure, and the soft segment i...
Embodiment 2
[0040] This embodiment provides a flexible thermoplastic polyolefin anti-seepage material, including the following raw materials in parts by weight: 95 parts of thermoplastic polyolefin resin, 5 parts of filler, 3 parts of processing aid, 5 parts of light stabilizer,
[0041] Among them, in this embodiment, the processing aid is selected from hindered phenolic antioxidant, the filler is selected from 800 mesh magnesium hydroxide, and the light stabilizer is selected from carbon black, ultraviolet absorber, HALS (the mass ratio of the three is 1:2:2). mixture.
[0042] The thermoplastic polyolefin resin in this embodiment has a flexural modulus of 150 MPa and a Shore hardness of 32 Shore D.
[0043] The preparation method of the flexible thermoplastic polyolefin anti-seepage material of the present embodiment is as follows:
[0044] At 240°C, it is stably extruded from the mold and enters the calender roll. After cooling, tension adjustment and cutting, a sheet of flexible the...
Embodiment 3
[0047] This embodiment provides a flexible thermoplastic polyolefin anti-seepage material, which is similar to the flexible thermoplastic polyolefin anti-seepage material in Example 2, and the difference between it and Example 2 is that no filler is added in Example 3.
[0048] The raw material parts of embodiment 3 are: thermoplastic polyolefin resin is 100 parts of thermoplastic polypropylene base elastomers, and processing aid is 10102 parts of antioxidants, and light stabilizer is titanium dioxide and light stabilizer 2020 (both mass ratios are 3 : 5 parts of the mixture of 2).
[0049] The preparation method of the flexible thermoplastic polyolefin anti-seepage material of the present embodiment is as follows:
[0050] At 200°C, it is stably extruded from the mold and enters the calender roll. After cooling, tension adjustment, and cutting, a sheet of flexible thermoplastic polyolefin anti-seepage material (also called anti-seepage sheet) is obtained. The thickness of the...
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