Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing ethylene-ethylene acetate copolymer asphalt water-proof coiled material

A technology of vinyl acetate copolymer and bitumen waterproofing membrane, which is applied in the direction of chemical instruments and methods, roofs using flexible materials, building structures, etc., can solve problems such as difficult welding, achieve high tensile strength and elongation, and excellent Water resistance, overcome the effect that is difficult to weld

Inactive Publication Date: 2009-07-22
JIANGSU HUAHONG RUBBER & PLASTIC
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, asphalt waterproof membrane has excellent water resistance; resin waterproof membrane has high tensile strength and elongation; rubber waterproof membrane has cold resistance and flexibility, but has the disadvantage of being difficult to weld

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing ethylene-ethylene acetate copolymer asphalt water-proof coiled material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of mixed asphalt and asphalt master batch

[0035] Mixed asphalt refers to an asphalt material in which petroleum pitch and coal tar pitch are blended together.

[0036] 75 parts of 90# petroleum pitch and 20 parts of medium temperature coal tar pitch were melted into liquids and then added to a 300L high-speed mixer for stirring. The temperature of the high-speed mixer was adjusted to 200°C, and 5 parts of anthracene were added directly after stirring for 3 minutes. Oil, 2 parts of rare earth stabilizer RE-120, 1.5 parts of phenol antioxidant and 3 parts of dioctyl phthalate plasticizer, continue to stir for 5 minutes, then add ethylene-vinyl acetate copolymer, the amount is mixed asphalt It is doubled, and the mixing is continued for 8 minutes, and the material is discharged. After it is cooled into a small solid, it is pulverized and granulated by a pulverizer to make an asphalt masterbatch for later use.

[0037] 2. Preparation of ethylene-vinyl acetate c...

Embodiment 2

[0040] 1. Preparation of mixed asphalt and asphalt master batch

[0041] 75 parts of 90# petroleum pitch and 16 parts of medium temperature coal tar pitch were melted into liquids and then added to a 300L high-speed mixer for stirring. The temperature of the high-speed mixer was adjusted to 210°C, and 3 parts of anthracene were added directly after stirring for 5 minutes. Oil, 2.5 parts of calcium stearate (or zinc stearate) stabilizer, 2.5 parts of phenol antioxidant and 4 parts of dibutyl phthalate plasticizer, continue stirring for 3 minutes, then add ethylene-vinyl acetate copolymer The amount of the mixed asphalt is twice that of the mixed asphalt. After stirring for another 10 minutes, the material is discharged. After it is cooled into a small solid, it is crushed and granulated by the pulverizer to make an asphalt masterbatch for later use.

[0042] 2. Preparation of ethylene-vinyl acetate copolymer bitumen waterproofing membrane

[0043] Use 40 parts of bituminous masterb...

Embodiment 3

[0045] 1. Preparation of mixed asphalt and asphalt master batch

[0046] 75 parts of 90# petroleum pitch and 18 parts of medium temperature coal tar pitch were melted into liquids and then added to a 300L high-speed mixer for stirring. The temperature of the high-speed mixer was adjusted to 190℃, and 4 parts of anthracene were added directly after stirring for 4 minutes. Oil, 1.5 parts of hindered amine stabilizer HAS-2, 2 parts of phenol AO-18 / phosphite compound antioxidant (phenol AO-18: phosphite=1: 0.8~1.2) and 3 parts of tribubutyl citrate (Or trimellitate or epoxy soybean oil) plasticizer, continue to stir for 4 minutes, then add ethylene-vinyl acetate copolymer, the amount is twice that of the mixed asphalt, and continue to stir for 9 minutes before the material is discharged. After it is cooled into small solids, it is crushed and granulated on a pulverizer to make asphalt masterbatch for later use.

[0047] 2. Preparation of ethylene-vinyl acetate copolymer bitumen waterp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of an ethylene-vinyl acetate copolymer bitumen waterproof coiled material, which is prepared by directly extruding after mixing 20-40 parts of mixed asphalt masterbatch and 60-80 parts of ethylene-vinyl acetate copolymer evenly. The mixed asphalt masterbatch is composed of the following raw materials in parts by weight: 75 parts of 90# petroleum asphalt, 16-20 parts of medium-temperature coal tar pitch, 3-5 parts of anthracene oil, 1.5-2.5 parts of heat stabilizer, 1.5-2.5 parts of antioxidant, 2 to 4 parts of plasticizer, 180 to 190 parts of ethylene-vinyl acetate copolymer; the preparation method is as follows: 1. Melt petroleum pitch and coal tar pitch and stir, add anthracene oil, stabilizer, antioxidant and Plasticizer and ethylene-vinyl acetate copolymer are cooled into small pieces of solid, and then crushed and granulated by a pulverizer to make asphalt masterbatch; 2. After mixing the asphalt masterbatch with ethylene-vinyl acetate, it is directly extruded waterproof materials. The waterproof coiled material prepared by the method of the invention integrates the excellent functions of the asphalt waterproof coiled material, the resin waterproof coiled material and the rubber waterproof coiled material.

Description

Technical field: [0001] The invention relates to a waterproof coiled material. Specifically, it relates to a preparation method of an ethylene vinyl acetate copolymer bitumen waterproof coiled material. It belongs to the technical field of polymer waterproof materials. Background technique: [0002] At present, there are three main types of waterproof materials: bituminous waterproofing membranes, resin waterproofing membranes and rubber waterproofing membranes. Among them, asphalt waterproofing membranes have excellent water resistance; resin waterproofing membranes have high tensile strength and elongation; rubber waterproofing membranes have cold resistance and flexibility, but have the disadvantage of being difficult to weld. Summary of the invention [0003] The object of the present invention is to provide an ethylene-vinyl acetate copolymer bitumen waterproofing coiled material that integrates the excellent functions of asphalt waterproofing membranes, resin waterproofing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18E04D5/10C08L23/08C08L95/00C08K5/524
Inventor 胡士勤承全兴王开东方再荣朱以栋
Owner JIANGSU HUAHONG RUBBER & PLASTIC