Sample preparation method and mold for peel strength test on coated fabric

A technology of peeling strength and coating fabrics, which is applied in the preparation, sampling, measuring devices and other directions of test samples, which can solve the problems that the coating cannot be completely and continuously peeled off the fabrics and change the peeling strength of the samples.

Active Publication Date: 2017-11-24
中央军委后勤保障部建筑工程研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a sample preparation method and a mold for the peel strength test of coated fabrics, so as to solve the problems in the sample preparation process in the prior art when preparing the sample for the peel strength test. It will change the peel strength of the sample itself, and the technical problem that the coating of the sample cannot be completely and continuously peeled off from the fabric

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
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  • Sample preparation method and mold for peel strength test on coated fabric
  • Sample preparation method and mold for peel strength test on coated fabric
  • Sample preparation method and mold for peel strength test on coated fabric

Examples

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Embodiment 1

[0040] Such as figure 2 with image 3 As shown, this embodiment provides a sample preparation compaction mold for the peel strength test of coated fabrics, including a base 1 and a gland 2 that can be covered together, and the upper surface of the base 1 is processed with a plurality of The compaction grooves 3 arranged side by side, the tops of the compaction grooves 3 are open, and one end surface of the compaction grooves 3 is open;

[0041] The lower surface of the gland 2 is provided with a plurality of pressing heads 4 corresponding to the compacting grooves 3 one by one.

[0042] A pair of handles 5 are arranged on the upper surface of the gland 2 to facilitate the movement of the gland.

[0043] The specification of the width×length of the compaction groove 3 is 7cm×15cm, matching with the size of the prefabricated sample.

[0044] The number of compaction grooves 3 is more than five, which meets the minimum requirement of a parallel test, and at least five prefabr...

Embodiment 2

[0047] Such as Figure 1 to Figure 3 As shown, the present embodiment provides a kind of sample preparation method of coating fabric peel strength test, and this method is specifically carried out according to the following steps:

[0048] Step 1, fabric cutting: cutting the coated fabric into a plurality of strips with a size of 7cm×15cm.

[0049] Step 2, grinding: Use 150# sandpaper to grind the coating surface to be tested for each strip sample. All positions on the coating surface to be tested should be polished in place. Clean the polished surface of the coating to be tested; dip a clean cloth with an appropriate amount of acetone to clean the polished surface of the coating to be tested and let it dry naturally.

[0050] Step 3, glue coating and bonding: scrape the adhesive evenly on the coating surface to be tested, and use a 3M rubber scraper. Note that when scraping, at least 5cm of the sample should be reserved at one end without scraping glue, so as to facilitate t...

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Abstract

The invention discloses a sample preparation method and a sample preparation mold for a peel strength test on coated fabric. An adhesive adopted in a gluing and conglutination step in a sample preparation process is a single-componnet moisture-cured adhesive; ethyl cyanoacrylate is contained in the single-componnet moisture-cured adhesive; the compaction and the curing are carried out by adopting a sample preparation compaction mold in a compaction and curing step in the sample preparation process; the sample preparation compaction mold comprises a base and a gland which can be put together in a covering manner; multiple compaction grooves which are arranged in parallel are processed in the upper surface of the base; the tops of the compaction grooves are open; certain end surfaces of the compaction grooves are open; the lower surface of the gland is provided with multiple press heads correspondingly matched with the compaction grooves in a one-to-one correspondence manner. The sample preparation method provided by the invention can effectively keep the peel strength of a coating changeless, can be further used for the test, is applicable to the preparation of a test sample for the T-shaped peel strength of most coated fabric, and is especially applicable to PU (Polyurethane) and PVC (Polyvinyl Chloride) coated fabric.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and relates to performance testing of macromolecular materials, in particular to a sample preparation method and a mold for coating fabric peeling strength testing. Background technique [0002] Coated fabric, is a composite material consisting of two or more layers of materials, at least one of which is a textile and the other layer is a fully continuous polymer coating. Because different polymer coatings have excellent windproof, waterproof, moisture-permeable, aging-resistant, and corrosion-resistant properties, coated fabrics are widely used in sportswear, down jackets, tents, footwear, curtains, bags and advanced waterproof and moisture-permeable Functional ski jackets, mountaineering suits, windbreakers, etc., can also be used in national defense, navigation, fishing, offshore oil wells, transportation and other fields. [0003] The peeling strength of coated fabrics is one of its m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
CPCG01N1/286
Inventor 吴剑锋刘剑飞张五龙杨国威刘玉通
Owner 中央军委后勤保障部建筑工程研究所
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