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Pre-paved type polyolefin self-adhering film waterproof sheet and preparation method thereof

A waterproof sheet and self-adhesive film technology, which is applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of poor softness of polymer waterproof sheets, self-adhesive surface wettability and initial tackiness, etc. , to achieve the effects of excellent peel strength, good waterproof performance and good construction performance

Inactive Publication Date: 2017-03-29
广州大禹防漏技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the self-adhesive adhesive layer has been studied in depth. The polymer sheet layer is mainly blended with resins such as HDPE, LLDPE, LDPE, TPO, and EVA. The prepared polymer waterproof sheet has poor softness and is not compatible with There are still large defects in self-adhesive surface wettability and initial tack. Therefore, the physical and mechanical properties, surface wettability, surface tension and surface viscosity of polymer waterproof sheets need to be further improved.

Method used

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  • Pre-paved type polyolefin self-adhering film waterproof sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take 60 parts of HDPE, 30 parts of LDPE, 10 parts of styrene-isoprene-styrene block copolymer, and use it as a benchmark for the mass fraction of other materials, 3 parts of C5 hydrogenated petroleum resin, 0.3 parts of rutile titanium dioxide 0.2 parts of antioxidant B215, mixed on a high-speed mixer for 15 minutes, put the above-mentioned uniformly mixed materials into a single-screw extruder, set the temperature of the single-screw extruder to 200 ° C, and the materials passed through the T-die of the extruder Head, cooling roll, traction roll, winding roll to obtain pre-laid polyolefin self-adhesive film waterproof sheet. The physical performance test of the obtained pre-laid polyolefin self-adhesive film waterproof sheet is carried out according to GB / T 23457-2009.

Embodiment 2

[0039] Take 50 parts of HDPE, 30 parts of LDPE, 10 parts of styrene-isoprene-styrene block copolymer, 10 parts of polyethylene graft material, and use it as a benchmark for the mass fraction of other materials, C5 hydrogenated petroleum resin 3 parts, 0.3 parts of rutile titanium dioxide, 0.2 parts of antioxidant B215, mixed on a high-speed mixer for 15 minutes, put the above-mentioned homogeneously mixed materials into a single-screw extruder, set the temperature of the single-screw extruder to 200 ° C, The material passes through the T-die head of the extruder, the cooling roll, the traction roll, and the winding roll to obtain a pre-laid polyolefin self-adhesive film waterproof sheet. The physical properties of the pre-laid polyolefin self-adhesive film waterproof sheet were tested according to GB / T23457-2009.

Embodiment 3

[0041]Take 50 parts of HDPE, 30 parts of LDPE, 10 parts of styrene-isoprene-styrene block copolymer, 10 parts of polyethylene graft material, and use it as a benchmark for the mass fraction of other materials, C5 hydrogenated petroleum resin 6 parts, 0.3 parts of rutile titanium dioxide, 0.2 parts of antioxidant B215, mixed on a high-speed mixer for 15 minutes, put the above-mentioned homogeneously mixed materials into a single-screw extruder, set the temperature of the single-screw extruder to 200 °C, The material passes through the T-die head of the extruder, the cooling roll, the traction roll, and the winding roll to obtain a pre-laid polyolefin self-adhesive film waterproof sheet. The physical properties of the pre-laid polyolefin self-adhesive film waterproof sheet were tested according to GB / T23457-2009.

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Abstract

The invention discloses a pre-paved type polyolefin self-adhering film waterproof sheet and a preparation method thereof. The pre-paved type polyolefin self-adhering film waterproof sheet is composed of two layers of structures, namely, a polyolefin waterproof sheet and a self-adhering glue layer, wherein the polyolefin sheet is prepared from the following raw materials in parts by weight: 65-85 parts of polyethylene, 10-25 parts of thermoplastic elastomer, 5-10 parts of polyethylene grafting materials, 3-8 parts of a modified tackifier, 0.2-0.6 part of titanium dioxide and 0.1-0.5 part of an antioxidant. The preparation method comprises the following steps: mixing according to the raw material ratio of the polyolefin waterproof sheet, fusing, extruding and forming the polyolefin sheet, and then compounding one self-adhering glue layer onto the sheet. The polyolefin self-adhering film waterproof sheet prepared according to the method has the advantages of excellent physical and mechanical properties, excellent waterproof property, moderate softness, excellent workability, safety, environmental protection and excellent peeling strength of self-adhering glue layer and post-poured concrete. The pre-paved type polyolefin self-adhering film waterproof sheet prepared according to the method provided by the invention can be used for waterproof purpose of railway tunnels.

Description

technical field [0001] The invention relates to a pre-laid polyolefin self-adhesive film waterproof sheet and a preparation method thereof. Background technique [0002] Polymer self-adhesive film waterproof sheet is a new type of building waterproof material for pre-paved anti-adhesive construction, which is made of synthetic polymer sheet as the base film and covered with a polymer self-adhesive film layer on one side. Pressure roller forming, because of its outstanding waterproof, self-healing, pressure-sensitive, safe and environmentally friendly, and convenient construction, has quickly been popularized and applied in underground waterproofing fields such as subway tunnels, culverts, and basements. [0003] The polymer self-adhesive film waterproof sheet is constructed by the pre-laying method. Compared with the traditional waterproof sheet, the polymer self-adhesive film is first laid empty, with the self-adhesive layer facing the construction personnel, and then the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J153/02C08L23/06C08L53/02C08L57/02C08L51/06C08K3/22
CPCC08L23/06C08L2205/025C08L2205/035C08L2207/062C08L2207/066C09J153/02C09J2423/046C09J2453/006C09J7/243C09J7/387C09J2301/122C09J2301/302C09J2301/304C09J2301/41C08L53/02C08L57/02C08K2003/2241C08L51/06
Inventor 周智轶
Owner 广州大禹防漏技术开发有限公司
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