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Composite waterproof roll as well as preparation method and application thereof

A waterproof roll material and roll material technology, which is applied in the direction of chemical instruments and methods, building insulation materials, synthetic resin layered products, etc., can solve the problems of polypropylene fiber strength decrease, longitudinal tensile strength, transverse tensile strength, peeling strength decrease, The problems of low three-strength of the coiled material can achieve the effect of increasing the depth of the core layer pressed into the coiled material, increasing the temperature of the composite process, and improving the environmental adaptability

Pending Publication Date: 2021-03-16
秦皇岛市松岩建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Under the composite temperature of polyethylene polypropylene fiber membrane, the strength of polypropylene fiber decreases, so that the properties of polyethylene polypropylene fiber membrane, including longitudinal tensile strength, transverse tensile strength, and peel strength (hereinafter referred to as the three strengths) are simultaneously reduced.
[0006] 2. Polyethylene polypropylene coiled material is that polypropylene fiber is pressed into polyethylene in a molten state. Polypropylene fiber is wrapped and inlaid with polyethylene to make the two composite together. The composite method makes the bonding strength between the two not high, so that The three-strength of the coil is not high, and the fibers will be exposed, and the environmental adaptability is poor
However, its composite method is similar to that of polyethylene polypropylene fiber membrane, and there are also problems such as low bonding strength between the fiber and the core layer of the membrane, and the fiber will be exposed, and the environmental adaptability is poor.
Therefore, it gradually disappeared, and it is difficult to see polyethylene polyester membranes in the market.

Method used

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  • Composite waterproof roll as well as preparation method and application thereof
  • Composite waterproof roll as well as preparation method and application thereof
  • Composite waterproof roll as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Coil core material: linear low density polyethylene, core thickness 0.5mm.

[0057] Non-woven fabric: bicomponent fiber with skin-core structure, fiber skin material polyethylene; fiber core material polyester (PET), fiber length 51mm.

[0058] The production of the nonwoven fabric in this embodiment adopts the controllable two-dimensional fiber arrangement direction to lay the net. The two-dimensional structure has 40-45% of the X-axis fiber arrangement quantity and 55-60% of the Y-axis fiber arrangement quantity. In a three-dimensional direction, the needling density determines the number of fibers arranged in the Z-axis direction, and the number is 360-390 fibers / cm 2 (The number of X-axis fibers + the number of Y-axis fibers = 100. The X-axis fibers and Y-axis fibers are punctured into 4 90-degree bends by needle punching. After needle punching, the fibers are concave-convex, and the length of the non-woven fabric in the Z-axis direction is only the fiber length. 5...

Embodiment 2

[0067] The coil core layer 1 is made of (EVA from Mitsui Polymer Chemicals Co., Ltd., model P-2805, with a melt index of 2), and the nonwoven fabric 2 is made of two-component (PE / PET) polyester with a polyethylene skin core structure. ) fibers are made by needle punching process.

[0068] Coil core material: EVA (ethylene-vinyl acetate copolymer core layer, core layer thickness 0.5mm.

[0069] Non-woven fabric: bicomponent fiber with skin-core structure, fiber skin material polyethylene; fiber core material polyester (PET), fiber length 51mm.

[0070] The preparation of the nonwoven fabric in this example is as in Example 1.

[0071] In the coil preparation process of this embodiment, the composite temperature is 160-190° C.; the pressure is 4.5-5 MPa, the composite gap is 0.6-0.65 mm, and the non-woven fabric is pressed into the core layer of the coil to a depth of 0.08-0.12 mm.

[0072] Present embodiment coil inspection result:

[0073] Longitudinal tensile strength: 79...

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Abstract

The invention discloses a composite waterproof roll as well as a preparation method and application thereof. The composite waterproof coiled material comprises a coiled material core layer and non-woven fabrics distributed on the upper surface and the lower surface of the core layer, the non-woven fabrics are made of double-component fibers of a skin-core structure, and a fiber skin layer of the outer layer of the double-component fibers of the skin-core structure and the coiled material core layer are thermally bonded into a whole in the compounding process. The fiber core layer of the innerlayer of the skin-core structure double-component fiber is completely wrapped. According to the waterproof coiled material obtained through the special preparation process, the non-woven fabric and the coiled material core layer are thermally bonded into a whole, fibers are wrapped in the non-woven fabric all the time, the three strengths of the coiled material are improved, and meanwhile the environmental adaptability of the coiled material is improved.

Description

technical field [0001] The invention relates to a composite waterproof coiled material, a preparation method and an application, and belongs to the technical field of waterproof coiled materials. Background technique [0002] At present, among the polymer waterproof membranes, polyethylene polypropylene waterproof membranes occupy a leading position in sales. Polyethylene polypropylene waterproof membranes are used in many waterproof engineering fields, such as large public buildings, general civil buildings, industrial buildings, and public transportation. There are a large number of applications in different types of buildings such as subways, water conservancy projects, and special structural buildings. [0003] Polyethylene polypropylene waterproofing membrane is produced by melting and extruding polyethylene with relevant additives as the middle waterproof layer, and the upper and lower surfaces are formed with polypropylene nonwoven fabric hot pressing process at one t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/02B32B27/30B32B27/36B32B5/02B32B5/08B32B7/022B32B7/08B32B33/00B32B37/10B32B37/06D04H1/4382D04H1/46D04H1/492D06C7/02E04D5/10E04B1/66E02D31/02
CPCB32B27/32B32B27/12B32B27/30B32B5/02B32B5/08B32B7/08B32B7/022B32B33/00B32B37/10B32B37/06D04H1/4382D04H1/46D04H1/492D06C7/02E04D5/10E04B1/66E02D31/02B32B2262/0253B32B2262/0223B32B2262/0284B32B2262/12B32B2307/50B32B2419/00
Inventor 不公告发明人
Owner 秦皇岛市松岩建材有限公司
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