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Colored thermoplastic polyolefin waterproof coiled material

A thermoplastic polyolefin and waterproof membrane technology, which is applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the market demand growth of colored thermoplastic polyolefin waterproof membranes, and the increase in the exposure temperature of the membranes , white coil light pollution and other problems, achieve excellent color stability, meet the waterproof function requirements, and improve the effect of coil service life

Inactive Publication Date: 2020-04-17
BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional thermoplastic polyolefin waterproofing membrane for roofing is mostly white, which has the effect of "cold roof" for energy saving and heat insulation. However, with the development of the construction industry, the problem of "light pollution" exposed by white membranes cannot satisfy people's expectations for the color of building roofs. Increasing Design Requirements, Colored Thermoplastic Polyolefin Waterproofing Membrane Market Demand Growing
[0004] About 45% of sunlight energy is composed of near-infrared rays (700-2500nm). Near-infrared rays are the main source of thermal effects in sunlight. For white coiled materials, rutile-type titanium dioxide pigments are used to absorb ultraviolet rays, protect the coiled materials, and reflect absolute Most of the visible light and most of the infrared rays can isolate the heat of the sun and reduce the energy consumption of the air conditioner; non-white coils, especially dark ones, absorb and scatter part of the visible light in the sun through pigments, thereby producing hiding power and specificity. Color, but ordinary pigments, such as carbon black, absorb a large amount of infrared rays in sunlight at the same time, accumulate energy, and make the exposure temperature of the coil significantly increase. In areas with strong sunlight, it can reach 70°C in summer, which is not conducive to heat insulation and energy saving and accelerates the aging of the coil.

Method used

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  • Colored thermoplastic polyolefin waterproof coiled material
  • Colored thermoplastic polyolefin waterproof coiled material
  • Colored thermoplastic polyolefin waterproof coiled material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 A schematic structural view of the colored thermoplastic polyolefin waterproof membrane in Example 1 of the present invention is shown. The upper surface is a blue transmissive layer 11 with a thickness of 0.60 mm, and the lower surface is a white reflective layer 12 with a thickness of 0.60 mm.

[0036] The raw material components of each layer are listed as follows by weight ratio:

[0037] Table 1

[0038] components Upper surface blue transmissive layer Lower surface white reflective layer thermoplastic polyolefin resin 100 copies 100 copies 800 mesh heavy calcium carbonate 10 copies 20 copies Blue Infrared Transmitting Pigment 3 copies 0 copies Titanium dioxide 0 copies 2 copies Irganox B225 1 copy 1 copy Chimassorb2020 1 copy 1 copy

[0039]The above two layers of raw materials are mixed evenly in a high-speed mixer, and are transported to two twin-screw extruders through a weight l...

Embodiment 2

[0046] figure 2 A schematic structural view of the colored thermoplastic polyolefin waterproof membrane according to Example 2 of the present invention is shown. The upper surface is a yellow transmissive layer 21 with a thickness of 0.60 mm, the middle layer is a white reflective layer 22 with a thickness of 0.60 mm, and the bottom layer is a polypropylene non-woven fabric 23 with a weight of 200 grams.

[0047] The raw material components of the yellow transmissive layer and the white reflective layer are listed as follows in terms of weight ratio:

[0048] table 3

[0049]

[0050]

[0051] The above two layers of raw materials are mixed evenly in a high-speed mixer, and are transported to two twin-screw extruders through a weight loss scale. The temperature of each section of the extruder barrel is set at 170-230 ° C. Melting and plasticizing, conveying to the same two-color co-extrusion die for compound extrusion, the white reflective layer of the three-roll cale...

Embodiment 3

[0058] image 3 A schematic structural view of the colored thermoplastic polyolefin waterproof membrane according to Example 3 of the present invention is shown. The upper surface is a gray transmissive layer 31 with a thickness of 0.70mm, the lower surface is a white reflective layer 33 with a thickness of 0.70mm, and the middle is a polyester grid cloth reinforcing layer 32 with a total thickness of 1.50mm.

[0059] The raw material components of the gray transmissive layer and the white reflective layer are listed as follows in terms of weight ratio:

[0060] table 5

[0061]

[0062]

[0063] Mix the above-mentioned lower and upper surface raw materials in a high-speed mixer respectively, and transport them to two twin-screw extruders A and B through a weight loss scale. Melting and plasticizing in the screw extruder, the white reflective layer material of machine A is extruded to the three-roll calender and polyester mesh cloth, and then cooled and shaped, and the...

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Abstract

The invention discloses a colored thermoplastic polyolefin waterproof coiled material. The colored thermoplastic polyolefin waterproof coiled material comprises a colored transmission layer and a white reflection layer. The formula and the structural design are adopted; the color and the total sunlight reflection ratio of the thermoplastic polyolefin waterproof coiled material are adjusted; compared with a traditional colored coiled material, the prepared coiled material reflects more sunlight, the temperature of the coiled material during exposure is reduced, the service life of the coiled material is prolonged, and the coiled material has excellent color stability, good mechanical property, welding construction performance and aging resistance, so that the waterproof function requirement, the color design requirement and the energy-saving and heat-insulating requirements are met at the same time.

Description

technical field [0001] The invention belongs to the field of thermoplastic polyolefin waterproof coiled material, and more specifically relates to a colored thermoplastic polyolefin waterproof coiled material. Background technique [0002] Thermoplastic polyolefin waterproofing membrane has both the weather resistance of EPDM waterproofing membrane and the weldability of PVC waterproofing membrane. It has been widely used in single-ply roofing systems since the 1990s. Type low-slope roof polymer waterproof membrane. [0003] At present, the traditional thermoplastic polyolefin waterproofing membrane for roofing is mostly white, which has the effect of "cold roof" for energy saving and heat insulation. However, with the development of the construction industry, the problem of "light pollution" exposed by white membranes cannot satisfy people's expectations for the color of building roofs. With the increasing requirements of design, the market demand for colored thermoplastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/20C08L23/08C08K13/02C08K3/26C08K3/22B32B27/36
CPCB32B27/08B32B27/20B32B27/32B32B27/36C08K3/22C08K3/26C08K13/02C08K2003/2241C08K2003/265C08L23/0815
Inventor 徐大洲刘志维李建军
Owner BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD