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A method for testing the adhesion properties of regenerated fiber membranes

A regenerated fiber and detection method technology, which is applied in the direction of weighing by removing certain components, can solve the problems of downstream customer loss, poor adhesive performance of regenerated fiber membranes, and inability to detect glycerin of regenerated fiber membranes, etc., to achieve accurate detection, Ease of operation and improved detection efficiency

Active Publication Date: 2021-12-28
SHANDONG HENGLIAN NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, it is impossible to determine whether the regenerated cellulose film is suitable for glue attachment before sizing. Only after sizing for a certain period of time can it be determined whether the regenerated cellulose film will be degummed, which affects the delivery efficiency of the product
[0004] After research, the main reason for the degumming of large quantities of adhesive tapes is the use of glycerin in the softener. In the early stage, glycerin was mixed in and led to large quantities of degumming, resulting in poor adhesive performance of regenerated fiber membranes, resulting in the loss of many downstream customers.
However, since the commonly used softeners are diethylene glycol and triethylene glycol, and glycerol has the same atoms as diethylene glycol and triethylene glycol, it is impossible to detect whether glycerin is used in the regenerated fiber membrane according to the existing detection methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The detection method of a regenerative fiber membrane in this embodiment, including the following steps,

[0033] (1) Repair: Select the regenerated fiber film to be detected as a sample, which is known as the proportion of water as M and known softener as N;

[0034] (2) Sample: We will weigh the above-described regenerated fiber membrane sample 1.0g, put it into the aluminum cassette, then cover the aluminum cassette, weigh the quality of the aluminum cassette and the sample, and write down the mass G1, aluminum cassette Quality is G4;

[0035] (3) Baking: Using an oven and raises it to 140 ° C, then place the aluminum cassetted aluminum cassette containing the sample into the oven, baked for 30 min, and takes out the aluminum cassette;

[0036] (4) Cooling: Put the aluminum cassette removed from the oven into a dryer, and then cool the aluminum cassette 30 min to the aluminum cassette to cool the temperature;

[0037] (5) Weighing: Remove the cooling aluminum cassette, t...

Embodiment 2

[0052] The detection method of a regenerative fiber membrane in this embodiment, including the following steps,

[0053] (1) Repair: Select the regenerated fiber film to be detected as a sample, which is known as the proportion of water as M and known softener as N;

[0054] (2) Sample: Weigh 2.0g of the regenerated fiber membrane sample to be detected, put it into the aluminum cassette, then cover the aluminum cassette, weigh the quality of the aluminum cassette and the sample, and write down the mass G1, aluminum cassette Quality is G4;

[0055] (3) Baking: Using an oven and tested to 160 ° C, then place the aluminum cassetted aluminum box contained in the oven, baked 40 min, and remove the aluminum cassette;

[0056] (4) Cooling: Put the aluminum cassette removed from the oven into a dryer, and then cool the aluminum cassette 40 min to the aluminum cassette to cool down;

[0057] (5) Weighing: Remove the cooling aluminum cassette, then weigh the quality of the aluminum cassette...

Embodiment 3

[0072] The detection method of a regenerative fiber membrane in this embodiment, including the following steps,

[0073] (1) Repair: Select the regenerated fiber film to be detected as a sample, which is known as the proportion of water as M and known softener as N;

[0074] (2) Sample: Weigh 1.5G to be detected to be detected, put it in an aluminum cassette, then cover the aluminum cassette, weigh the quality of the aluminum cassette and the sample, and write down the mass G1, aluminum cassette Quality is G4;

[0075] (3) Baking: Using an oven and raises it to 150 ° C, then the aluminum box containing the sample is placed in the oven, baked for 35min, and remove the aluminum cassette;

[0076] (4) Cooling: Put the aluminum cassette removed from the oven into the dryer, and then cool the aluminum cassette in a dryer 35min to the aluminum cassette cooling at room temperature;

[0077] (5) Weighing: Remove the cooling aluminum cassette, then weigh the quality of the aluminum cassett...

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Abstract

The present invention relates to the technical field of regenerated fiber membranes, and in particular to a method for detecting the adhesion performance of regenerated fiber membranes. The regenerated fiber membrane is used as a sample; (2) Weigh the regenerated fiber membrane sample and put it into an aluminum box, weigh the quality G1 of the aluminum box and the sample, and the quality of the aluminum box is G4; (3) Bake the sample in an oven ( 4) Dry the aluminum box taken out of the oven and lower it to room temperature; (5) Weigh the mass G2 of the aluminum box after cooling; (6) Calculate the weight loss rate of the regenerated fiber membrane; (7) Judgment: According to the reference value of weight loss, Then, it is judged whether there is glycerol doping in the production process of the regenerated cellulose film by comparing the proportion of softener N and the value of the weight loss rate. This method has the advantages of accurate detection, easy operation and rapid detection.

Description

Technical field [0001] The present invention relates to the field of regenerative fiber membrane, and more particularly to a method of detecting a regenerative fiber membrane. Background technique [0002] The regenerated cellulosic film is an environmentally friendly, degradable new environmental protection material that can be used for printing and composite performance, and is widely used in printing, tape and food packaging. [0003] With the continuous expansion of the regenerated cellulose film product application, the requirements of various indicators for regenerate cellulose membranes are also more specific. Among them, for the production of regenerated cellulose membranes for tape production, the tape manufacturer is purchased into the regenerated cellulose membrane, and it is necessary to treat it, and then make the tape paper. However, in the prior art, whether the regenerated cellulose membrane is suitable for adhering to the adhesion to be unable to determine before...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 李瑞丰邱金江胡凯刘敏江修才石勇帅徐永康张文文包亚群王新陈玉苹王超李连波
Owner SHANDONG HENGLIAN NEW MATERIALS CO LTD