CN215473637U

CN215473637U - Anti-sliding pre-paved waterproof coiled material

Info

Publication number: CN215473637U
Application number: CN202120818112.3U
Authority: CN
Inventors: 朱庆玉; 李伟; 单永胜; 贺小钢; 周围; 陈洪进
Original assignee: Jiangsu Canlon Building Materials Co Ltd
Current assignee: Jiangsu Canlon Building Materials Co Ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-01-11
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to an anti-sliding pre-paved waterproof coiled material which comprises a base material layer, an adhesive layer and an anti-sticking layer which are sequentially stacked from bottom to top, wherein the base material layer comprises an upper layer and a lower layer which are prepared by co-extrusion molding, the upper layer is a polyethylene layer or an ethylene-vinyl acetate copolymer layer, and the lower layer is a polyolefin elastomer layer. The anti-sliding pre-paved waterproof coiled material is prepared by arranging the base material layer into an upper layer and a lower layer which are of a two-layer structure and co-extruding the upper layer and the lower layer, and the lower layer adopts the polyolefin elastomer layer, so that an excellent anti-sliding effect is provided for the pre-paved waterproof coiled material, the construction is convenient, the upper layer and the lower layer of the base material layer are prepared by co-extruding, and the processing technology of the pre-paved waterproof coiled material is simple.

Description

Anti-sliding pre-paved waterproof coiled material

Technical Field

The utility model belongs to the technical field of waterproof coiled materials, and particularly relates to an anti-sliding pre-paved waterproof coiled material.

Background

The currently known high polymer pre-paved waterproof roll usually takes a high polymer sheet as a carrier, hot melt pressure sensitive adhesive as an adhesive layer, and gravel attached to the surface of the high polymer sheet as an anti-sticking layer. The products are mutually overlapped to form a reliable waterproof effect, construction is carried out by adopting a pre-paving and anti-sticking mode, and the waterproof paint is widely applied to the engineering fields of basements, underground pipe galleries, subways or tunnels and the like.

However, the sheet carrier of the current high-molecular pre-paved waterproof roll usually takes the modified high-density polyethylene as the main material, and the sheet carrier directly contacts the cement ground during construction, and the high-molecular polyethylene has high crystallinity and low friction coefficient, so that the anti-sliding performance of the waterproof roll is poor, and the construction is difficult. Meanwhile, in the using process, the sliding damage of the building structure caused by the earth crust movement due to geological disasters such as earthquake and the like inevitably causes the sliding dislocation of the waterproof coiled material, and the possibility of stress damage and water channeling of the waterproof coiled material is increased.

Some means are disclosed in the prior art to improve the sliding performance of the pre-laid waterproof roll, such as providing some protruding points on the bottom surface of the pre-laid waterproof roll to improve the anti-sliding performance between the pre-laid waterproof roll and the ground or bonding a non-woven fabric on the bottom surface of the polymer sheet by an adhesive. Although this method can improve the anti-slip property to some extent, the anti-slip property is still poor.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a pre-paved waterproof coiled material with excellent anti-sliding performance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an anti-sliding pre-paved waterproof coiled material, includes substrate layer, adhesive layer and antiseized layer by supreme range upon range of setting in proper order down, the substrate layer includes upper strata and the lower floor through co-extrusion moulding preparation, the upper strata is polyethylene layer or ethylene-vinyl acetate copolymer layer, the lower floor is polyolefin elastomer layer.

According to some embodiments of the utility model, the polyolefin elastomer layer is a propylene-ethylene copolymer layer, an ethylene-alpha-butene copolymer layer, or an ethylene-alpha-octene copolymer layer.

According to some embodiments of the utility model, the polyolefin elastomer layer has a thickness of 0.1 to 0.3 mm.

According to some embodiments of the utility model, the upper layer is a high density polyethylene layer or an ethylene vinyl acetate copolymer layer.

According to some embodiments of the utility model, the upper layer has a thickness of 0.7 to 1.5 mm.

According to some embodiments of the utility model, the adhesive layer is a hot melt subsensitive adhesive layer or a polyurea material adhesive layer.

According to some embodiments of the utility model, the adhesive layer has a thickness of 0.25 to 0.5 mm.

According to some embodiments of the utility model, the release layer is a release particle layer.

According to some embodiments of the utility model, the release layer has a thickness of 0.3 to 0.6 mm.

According to some embodiments of the utility model, the polyolefin elastomer layer is a propylene-ethylene copolymer layer, the polyolefin elastomer layer has a thickness of 0.1 to 0.3mm, the upper layer is a polyethylene layer, and the upper layer has a thickness of 0.7 to 1.5 mm.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the anti-sliding pre-paved waterproof coiled material is prepared by arranging the base material layer into an upper layer and a lower layer which are of a two-layer structure and co-extruding the upper layer and the lower layer, and the lower layer adopts the polyolefin elastomer layer, so that an excellent anti-sliding effect is provided for the pre-paved waterproof coiled material, the construction is convenient, the upper layer and the lower layer of the base material layer are prepared by co-extruding, and the processing technology of the pre-paved waterproof coiled material is simple.

Drawings

FIG. 1 is a schematic view showing the structure of a roll of pre-applied waterproofing material according to example 1;

in the figure, 1, a substrate layer; 1a, an upper layer; 1b, a lower layer; 2. an adhesive layer; 3. and (4) an anti-sticking layer.

Detailed Description

The utility model is further described with reference to the drawings and the specific embodiments in the following description:

referring to fig. 1, the anti-sliding pre-paved waterproof roll comprises a substrate layer 1, an adhesive layer 2 and an anti-sticking layer 3 which are sequentially stacked from bottom to top, wherein the substrate layer 1 comprises an upper layer 1a and a lower layer 1b which are prepared by co-extrusion molding, the upper layer 1a is a polyethylene layer or an ethylene-vinyl acetate copolymer layer, and the lower layer 1b is a polyolefin elastomer layer.

The polyolefin elastomer layer is a propylene-ethylene copolymer layer, an ethylene-alpha-butene copolymer layer or an ethylene-alpha-octene copolymer layer, and the thickness is 0.1-0.3 mm. In this example, the polyolefin elastomer layer is a propylene-ethylene copolymer layer, and an auxiliary agent such as an antioxidant may be added to the polyolefin elastomer layer. As in this example, the following formulation may be used for the polyolefin elastomer layer: vistamaxx 6102100 parts of a propylene-ethylene copolymer of exxonmobil and 0.2 part of an antioxidant.

The thickness of the upper layer 1a is 0.7-1.5 mm. The upper layer 1a may be a high density polyethylene layer, for example.

The adhesive layer 2 is a hot-melt pressure-sensitive adhesive layer or a polyurea material adhesive layer, and the thickness is 0.25-0.5 mm. In this example, the hot-melt pressure-sensitive adhesive layer is a rubber system hot-melt pressure-sensitive adhesive.

The anti-sticking layer 3 is an anti-sticking particle layer with the thickness of 0.3-0.6 mm. The particle size of the anti-sticking particles adopted by the anti-sticking layer 3 is 30-80 meshes.

When the pre-laid waterproof coiled material is prepared, the raw materials of the upper layer 1a and the lower layer 1b of the base material layer 1 are respectively melted, then the base material layer 1 with the upper layer 1a and the lower layer 1b which are arranged in a stacked mode is prepared through co-extrusion, and then the adhesive layer 2 and the anti-sticking layer 3 are sequentially prepared on the upper surface of the upper layer 1a of the base material layer 1.

The pre-paved waterproof roll of the embodiment is prepared by arranging the substrate layer into an upper layer and a lower layer two-layer structure, co-extruding the upper layer and the lower layer, and preparing the lower layer by adopting the polyolefin elastomer with the viscous effect, so that the pre-paved waterproof roll with high static friction coefficient is obtained (according to ASTM D1894-06 test method for dynamic and static friction coefficients of plastic films and sheets, the static friction coefficient of the pre-paved waterproof roll in the embodiment can reach 1.23), the pre-paved waterproof roll has excellent anti-sliding performance, the pre-paved waterproof roll is not easy to slide after being paved, the construction is greatly facilitated, and the possibility of stress damage and water channeling of the waterproof roll in the using process is greatly reduced. And when the pre-laid waterproof coiled material is in lap joint, the lower layer 1b of the base material layer 1 and the adhesive layer 2 have excellent adhesive force, so that an excellent lap joint effect is provided, and a reliable waterproof effect is formed.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides an anti-sliding pre-paved waterproof roll, includes substrate layer, adhesive layer and antiseized layer, its characterized in that by supreme range upon range of setting in proper order down: the substrate layer includes upper strata and lower floor through crowded shaping preparation altogether, the upper strata is polyethylene layer or ethylene-vinyl acetate copolymer layer, the lower floor is the polyolefin elastomer layer.

2. The roll of roll pre-applied waterproofing of anti-slippage according to claim 1, characterized in that: the polyolefin elastomer layer is a propylene-ethylene copolymer layer, an ethylene-alpha-butene copolymer layer or an ethylene-alpha-octene copolymer layer.

3. The roll of roll pre-applied waterproofing of anti-slippage according to claim 1, characterized in that: the thickness of the polyolefin elastomer layer is 0.1-0.3 mm.

4. The roll of roll pre-applied waterproofing of anti-slippage according to claim 1, characterized in that: the upper layer is a high-density polyethylene layer or an ethylene-vinyl acetate copolymer layer.

5. The roll of roll pre-applied waterproofing of anti-slippage according to claim 1, characterized in that: the thickness of the upper layer is 0.7-1.5 mm.

6. The roll of claim 1 to 5, characterized by: the adhesive layer is a hot-melt sub-sensitive adhesive layer or a polyurea material adhesive layer.

7. The roll of claim 1 to 5, characterized by: the thickness of the adhesive layer is 0.25-0.5 mm.

8. The roll of claim 1 to 5, characterized by: the anti-sticking layer is an anti-sticking particle layer.

9. The roll of claim 1 to 5, characterized by: the thickness of the anti-sticking layer is 0.3-0.6 mm.

10. The roll of claim 1 to 5, characterized by: the polyolefin elastomer layer is a propylene-ethylene copolymer layer, the thickness of the polyolefin elastomer layer is 0.1-0.3 mm, the upper layer is a polyethylene layer, and the thickness of the upper layer is 0.7-1.5 mm.