Waterproof canvas

A canvas and waterproof layer technology, applied in the field of canvas, can solve problems such as easy to freeze and crack, easy to mold, and application restrictions, and achieve excellent breaking strength, good anti-mold and bactericidal effect

Inactive Publication Date: 2016-12-21
ANHUI HUAYE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is a carbonate waterproof layer on the canvas base cloth. The disadvantage is that it is easy to freeze and crack when the ambient temperature is low, and it is easy to mold when the environment is relatively humid. Its application is greatly restricted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A waterproof canvas, the waterproof canvas is based on high-strength polyester canvas, at least one side of the base fabric is coated with a polyvinyl chloride waterproof layer, and the polyvinyl chloride waterproof layer is made of the following raw materials by weight: 35 parts of polyvinyl chloride resin , 6 parts of polyacrylamide, 0.5 part of dioctyl phthalate, 0.5 part of 1,2-phenylpropylisothiazolin-3 ketone, 0.3 part of antioxidant RD, 12 parts of modified diatomaceous earth, 13 parts of polyvinyl alcohol 1.5 parts of p-phenylenediamine, 5 parts of diisocyanate.

[0015] The preparation method of modified diatomite is as follows: place diatomite in a muffle furnace at 450°C for 6 h pretreatment, cool to room temperature, take diatomite, and add anhydrous ethanol and water with a volume ratio of 1:1. In the mixed solution, add dilute acetic acid solution dropwise to adjust the pH of the mixed solution to 4, pre-stir in a water bath at 70°C for 30 minutes, add a s...

Embodiment 2

[0017] A waterproof canvas, the waterproof canvas is based on high-strength polyester canvas, at least one side of the base fabric is coated with a polyvinyl chloride waterproof layer, and the polyvinyl chloride waterproof layer is made of the following raw materials by weight: 30 parts of polyvinyl chloride resin , 5 parts of polyacrylamide, 0.2 part of dioctyl phthalate, 0.1 part of antioxidant RD, 8 parts of modified diatomaceous earth, 10 parts of polyvinyl alcohol, 1 part of p-phenylenediamine, 3 parts of diisocyanate;

[0018] The preparation method of modified diatomite is as follows: place diatomite in a muffle furnace at 450°C for 6 h pretreatment, cool to room temperature, take diatomite, and add anhydrous ethanol and water with a volume ratio of 1:1. In the mixed solution, add dilute acetic acid solution dropwise to adjust the pH of the mixed solution to 4, pre-stir in a water bath at 70°C for 30 minutes, add a silane coupling agent, continue stirring for 2 hours, an...

Embodiment 3

[0020] A waterproof canvas, the waterproof canvas is based on high-strength polyester canvas, at least one side of the base fabric is coated with a polyvinyl chloride waterproof layer, and the polyvinyl chloride waterproof layer is made of the following raw materials by weight: 32 parts of polyvinyl chloride resin , 6 parts of polyacrylamide, 0.3 parts of dioctyl phthalate, 0.2 parts of tetrachloro-4-methylsulfonyl pyridine, 0.2 parts of anti-aging agent RD, 9 parts of modified diatomaceous earth, 12 parts of polyvinyl alcohol , 1.2 parts of p-phenylenediamine, 4 parts of diisocyanate;

[0021] The preparation method of modified diatomite is as follows: place diatomite in a muffle furnace at 450°C for 6 h pretreatment, cool to room temperature, take diatomite, and add anhydrous ethanol and water with a volume ratio of 1:1. In the mixed solution, add dilute acetic acid solution dropwise to adjust the pH of the mixed solution to 4, pre-stir in a water bath at 70°C for 30 minutes...

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PUM

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Abstract

The invention discloses a waterproof canvas. The waterproof canvas adopts high-strength terylene canvas as a base cloth, at least one side of the base cloth is coated with a polyvinyl chloride waterproofing layer, and the polyvinyl chloride waterproofing layer is produced from, by weight, 30-40 parts of polyvinyl chloride resin, 5-8 parts of polyacrylamide, 0.2-0.8 parts of a plasticizer, 0-1 part of a mildew inhibitor, 0.01-0.5 parts of an antioxidant RD, 8-15 parts of modified diatomite, 10-16 parts of polyvinyl alcohol, 1-2 parts of p-phenylenediamine and 3-7 parts of diisocyanate. The polyvinyl chloride waterproofing layer containing the mildew inhibitor has very good mildew-resistant and antibacterial effects; and the waterproof canvas has excellent fracture strength, excellent tearing growth rate and tearing force, excellent water, cold, acid, alkali and ageing resistance, and is suitable for being applied to open air situations.

Description

technical field [0001] The invention relates to the technical field of canvas, in particular to a waterproof canvas. Background technique [0002] Canvas is a thicker cotton or linen fabric. So named because it was originally used for sails. Generally, plain weave is used, a small amount of twill weave is used, and multi-strand yarns are used for warp and weft yarns. Canvas is usually divided into two categories: coarse canvas and fine canvas. In addition, there are rubber canvases, shielding canvases for fire protection and radiation protection, and canvases for paper machines. [0003] At present, a carbonate waterproof layer is provided on the canvas base cloth. The disadvantage is that it is easy to freeze and crack when the ambient temperature is low, and it is easy to mold when the environment is relatively humid, so its application is greatly restricted. [0004] Diatomaceous earth is a kind of biogenic siliceous sedimentary rock, which has the characteristics of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/06D06N3/00
CPCD06N3/065D06N3/0006D06N3/0036D06N3/0059D06N3/0061D06N3/0063D06N3/0088D06N2209/103D06N2209/128D06N2209/143
Inventor 姚敏方祥张玉柱
Owner ANHUI HUAYE ADVANCED MATERIALS CO LTD
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