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

Inactive Publication Date: 2017-06-30
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the anti-seepage problem that the existing anti-seepage materials cannot be used in harsh environments for a long time, and provides a kind of anti-seepage material that can be directly exposed and applied to the construction and maintenance of hydropower and water conservancy projects such as dams, reservoirs, embankments, cofferdams, canals, tunnels, and nuclear power plants. Flexible thermoplastic polyolefin barrier material in

Method used

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  • Flexible thermoplastic polyolefin anti-seepage material and preparation method thereof
  • Flexible thermoplastic polyolefin anti-seepage material and preparation method thereof
  • Flexible thermoplastic polyolefin anti-seepage material and preparation method thereof

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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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Abstract

The invention provides a flexible thermoplastic polyolefin seepage-resistant material and a preparation method thereof, belongs to the technical field of anti-seepage materials, and can solve the anti-seepage problem that an existing impervious material cannot be used in a harsh environment for a long term. The flexible thermoplastic polyolefin seepage-resistant material provided by the invention comprises raw material thermoplastic polyolefin resin, a processing aid and a light stabilizer, wherein the bending modulus of the thermoplastic polyolefin resin is 2-300 MPa, and the Shore hardness is 10-50 shores D. The flexible thermoplastic polyolefin seepage-resistant material provided by the invention has excellent puncture resistance, hydraulic pressure resistance and multi-directional bursting resistance, and can be used for seepage prevention of dams, reservoirs, embankments, cofferdams, canals, tunnels, artificial lakes, refuse landfills, railway and road soft foundation reinforcement, nuclear power plants and other newly-built and maintenance works. The preparation method of the flexible thermoplastic polyolefin seepage-resistant material is simple and quick to process, and capable of continuous production.

Description

technical field [0001] The invention belongs to the technical field of anti-seepage materials, and in particular relates to a flexible thermoplastic polyolefin anti-seepage material and a preparation method thereof. Background technique [0002] Anti-seepage material is a functional material that prevents liquid substances (such as water) or gaseous substances (such as water vapor) from intruding into the protective structure. It has an anti-seepage effect that cannot be compared with ordinary waterproof materials. The water vapor permeability coefficient of the material can reach 10 -12 cm / s, then the material is almost impermeable to water. Currently, commercially available anti-seepage materials include polyvinyl chloride (PVC) geotechnical materials, high-density polyethylene (HDPE) geotechnical materials, linear low-density polyethylene (LLDPE) geotechnical materials, etc. It can be applied in fields such as landfill, sewage pond, railway and road soft foundation rein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08K13/06C08K9/10C08K3/26C08K3/22C08K5/134C08K13/02C08L23/10C08L23/16C08K3/34B29D7/01
CPCB29D7/01C08K3/22C08K5/1345C08K13/02C08K2003/2241C08L23/06C08L23/0815C08L23/10C08L23/12C08L23/16C08L2201/08C08L2205/02C08K13/06C08K9/10C08K2003/265C08K3/34
Inventor 韩忠强段文锋楚跃先宗敦峰周建平田凤兰
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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