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Waterborne polyurethane PE/POE (Polyethylene/Polyolefin Elastomer) composite waterproof coiled material as well as preparation method and application thereof

A water-based polyurethane and waterproof membrane technology, which is applied in polyurea/polyurethane adhesives, modified epoxy resin adhesives, roofs using flexible materials, etc., can solve the problems of brittle cracks, PE/POE composite materials Flammability needs to be improved, easy to flow and other problems, to achieve good flame retardancy, improve flame retardancy and mechanical strength and mechanical properties, and improve the effect of bonding strength

Pending Publication Date: 2022-08-02
合肥中科凯辰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A good blend material can be obtained by combining POE (ethylene-octene copolymer) and PE (polyethylene). As a waterproof membrane, it can effectively improve tensile strength, elongation, temperature stability, easy to flow at high temperature, and easy to flow at low temperature. Embrittlement and aging resistance, but the flame retardancy of PE / POE composites still needs to be improved

Method used

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  • Waterborne polyurethane PE/POE (Polyethylene/Polyolefin Elastomer) composite waterproof coiled material as well as preparation method and application thereof
  • Waterborne polyurethane PE/POE (Polyethylene/Polyolefin Elastomer) composite waterproof coiled material as well as preparation method and application thereof
  • Waterborne polyurethane PE/POE (Polyethylene/Polyolefin Elastomer) composite waterproof coiled material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of water-based polyurethane PE / POE composite waterproofing membrane, comprising the following steps:

[0041] S1: Preparation of PE / POE composite film base:

[0042] a. Prepare materials according to the following weights: 50 parts of polyethylene, 10 parts of ethylene-octene copolymer, 15 parts of polystyrene, 20 parts of polyurethane prepolymer, 15 parts of ethyl 2-hydroxymethyl acrylate, dibutyltin dilaurin 0.5 part of acid ester, 1 part of benzoyl peroxide, 10 parts of reactive flame retardant;

[0043]The reactive flame retardant is prepared by mixing pentaerythritol phosphate melamine salt and N,N-bis(2-hydroxyethyl)aminomethylenephosphonate diethyl ester in a mass ratio of 1.5:1;

[0044] b. Pre-dry polyethylene and ethylene-octene copolymer in an oven at 60°C for 24h;

[0045] c. Add polyethylene, ethylene-octene copolymer and polystyrene, polyurethane prepolymer, 2-hydroxymethyl ethyl acrylate, dibutyltin dilaurate, benzoyl peroxide, reac...

Embodiment 2

[0052] A preparation method of water-based polyurethane PE / POE composite waterproofing membrane, comprising the following steps:

[0053] S1: Preparation of PE / POE composite film base:

[0054] a. Prepare materials according to the following mass parts: 70 parts of polyethylene, 30 parts of ethylene-octene copolymer, 17.5 parts of polystyrene, 25 parts of polyurethane prepolymer, 17.5 parts of ethyl 2-hydroxymethacrylate, 0.75 parts of stannous octoate parts, 1.5 parts of diisopropyl peroxydicarbonate, and 12.5 parts of reactive flame retardant;

[0055] The reactive flame retardant is prepared by mixing pentaerythritol phosphate melamine salt and N,N-bis(2-hydroxyethyl)aminomethylenephosphonic acid diethyl ester in a mass ratio of 2:1;

[0056] b. Pre-dry polyethylene and ethylene-octene copolymer in an oven at 60°C for 24h;

[0057] c. Add polyethylene, ethylene-octene copolymer and polystyrene, polyurethane prepolymer, ethyl 2-hydroxymethyl acrylate, stannous octoate, dii...

Embodiment 3

[0064] A preparation method of water-based polyurethane PE / POE composite waterproofing membrane, comprising the following steps:

[0065] S1: Preparation of PE / POE composite film base:

[0066] a. Prepare materials according to the following weights: 90 parts of polyethylene, 50 parts of ethylene-octene copolymer, 20 parts of polystyrene, 30 parts of polyurethane prepolymer, 20 parts of ethyl 2-hydroxymethyl acrylate, dibutyltin diacetate 1 part, 1.5 parts of dicumyl peroxide, 15 parts of reactive flame retardant;

[0067] The reactive flame retardant is prepared by mixing pentaerythritol phosphate melamine salt and N,N-bis(2-hydroxyethyl)aminomethylenephosphonic acid diethyl ester in a mass ratio of 3:1;

[0068] b. Pre-dry polyethylene and ethylene-octene copolymer in an oven at 60°C for 24h;

[0069] c. Add polyethylene, ethylene-octene copolymer and polystyrene, polyurethane prepolymer, 2-hydroxymethyl ethyl acrylate, dibutyltin diacetate, dicumyl peroxide, and reactive ...

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Abstract

The invention discloses a waterborne polyurethane PE / POE composite waterproof coiled material and a preparation method and application thereof. The waterborne polyurethane PE / POE composite waterproof coiled material comprises a waterborne polyurethane adhesive, a PE / POE composite film base (1) and a protective liner (2), the waterborne polyurethane adhesive is uniformly coated on a single face of the PE / POE composite film base (1), the edge of the PE / POE composite film base (1) is provided with a gap, the coating thickness is 0.1 mm-0. 3mm, and a waterborne polyurethane PE / POE composite film (a) is formed through compounding; and uniformly coating the self-adhesive glue on the margin at the edge of the PE / POE polymeric membrane (a), and compounding the PE / POE polymeric membrane (a) with the protective liner (2) to form the waterborne polyurethane PE / POE composite waterproof coiled material with the total thickness of 0.6-1.5 mm, wherein the coating thickness is 0.1-0.3 mm. The waterborne polyurethane PE / POE composite waterproof coiled material prepared by the invention has the properties of flame retardance, high toughness, high elasticity, high strength, high elongation, high puncture resistance strength, good low-temperature property, chemical resistance and the like, and also has the characteristics of environment friendliness, no pollution, simplified construction process and the like.

Description

technical field [0001] The invention belongs to the technical field of waterproof building materials, and particularly relates to a water-based polyurethane PE / POE composite waterproof coil material, a preparation method and an application thereof. Background technique [0002] At present, the construction waterproofing materials in my country are still mainly based on asphalt waterproofing materials and polymer waterproofing materials, among which the most widely used asphalt waterproofing materials are. Due to the low tensile strength and elongation of the asphalt waterproofing membrane, the temperature stability is poor, the high temperature is easy to flow, and the low temperature is easy to be brittle; However, in recent years, with the continuous advancement of science and technology, people's awareness of environmental protection has increased, and waterproof materials with both waterproof performance and environmental protection performance are increasingly favored b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/24C09J7/25C09J7/30C09J7/40C09J163/10C09J175/04C09J163/00C09J123/08C09J153/02C08G18/38E04B1/66E04D5/10C08L23/06C08L23/08C08L25/06C08L75/14
CPCC09J7/243C09J7/241C09J7/25C09J7/40C09J7/30C09J175/04C09J163/10C08G18/3889E04B1/665E04D5/10C08L23/06C09J2423/046C09J2425/006C09J2475/006C09J2301/122C09J2301/21C09J2203/346C08L63/00C08L23/0853C08L53/02C08L23/0815C08L25/06C08L75/14
Inventor 胡先海徐德明
Owner 合肥中科凯辰新材料有限公司
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