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Preparation method of paste material of PVC paste resin

A compounding method and paste resin technology, applied in the direction of adhesive additives, non-polymer adhesive additives, etc., can solve the problems of unfavorable paste storage and use, large changes in viscosity over time, etc.

Inactive Publication Date: 2015-06-03
SHENYANG CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The viscosity of the paste prepared by the above two paste-making equipment changes greatly over time, which is not conducive to the storage and use of the paste

Method used

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  • Preparation method of paste material of PVC paste resin
  • Preparation method of paste material of PVC paste resin
  • Preparation method of paste material of PVC paste resin

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0039] 1) Raw materials: PSH-10PVC paste resin produced by Shenyang Chemical Co., Ltd., dioctyl phthalate DOP or dibutyl phthalate DBP, dibutyltin dilaurate.

[0040] 2) Ratio range of parts by weight: PVC paste resin: plasticizer: its stabilizer=100:65:2.2.

[0041] 3) Equipment and instruments: precision electric mixer, vacuum mixer, vacuum grinder, NDJ-5S rotational viscometer, electronic scale, constant temperature water bath.

[0042] 4) Steps:

[0043] ①Use an electronic scale, respectively at 1 # Mixer (comparison 1), 2 # Weigh the same materials in the mixer (comparison 2) and the mortar (the present invention) according to the proportion; manually premix the materials in the mixer and the mortar for 3-10 minutes, and complete the first step of plasticizing.

[0044] ②Use a precision electric mixer, adjust the rotation speed to 1000rpm, set the time to 10min, for 1 # The materials in the mixer are dispersed, and the second step of plasticization is completed to obt...

example 2

[0057] Raw materials: PSH-30PVC paste resin produced by Shenyang Chemical Co., Ltd., butyl benzyl phthalate BBP, liquid calcium-zinc.

[0058] Ratio range of parts by weight: PVC paste resin: plasticizer: stabilizer=100:75:1.8

[0059] Production method, steps and equipment and instrument are identical with embodiment 1;

[0060] Data and processing see Table 4 , table 5 .

[0061] Table 4 .Comparison of viscosity changes over time of Shenyang Chemical PSH-30PVC paste resin paste

[0062]

[0063] table 5 .Shenyang Chemical PSH-30PVC Paste Resin Viscosity Change Rate Over Time

[0064]

[0065] Depend on table 5 It can be seen from the data that the viscosity change rate of the PSH-30 paste after vacuum grinding is low over time.

example 3

[0067] Raw materials: PSM-31PVC paste resin produced by Shenyang Chemical Co., Ltd., diisononyl phthalate D1NP, liquid potassium-zinc;

[0068] Ratio range of parts by weight: PVC paste resin: plasticizer: stabilizer=100:60:2.5

[0069] Production method, steps and equipment and instrument are identical with embodiment 1;

[0070] Data and processing see Table 6 , Table 7 .

[0071] Table 6 .Comparison of viscosity changes over time of Shenyang Chemical PSM-31PVC paste resin paste

[0072]

[0073] Table 7 .Shenyang Chemical Industry PSM-31 polyvinyl chloride PVC paste resin viscosity change rate over time

[0074]

[0075] Depend on Table 7 It can be seen from the data that the viscosity change rate of the PSM-31 paste after vacuum grinding is low over time.

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Abstract

The invention provides a preparation method of a paste material of PVC paste resin. The preparation method is technically characterized by comprising the following steps: firstly weighing PVC paste resin, a plasticizer and a stabilizer in parts by weight, sequentially adding into a mortar, and manually dispersing the materials at normal temperature with a brayer for 3-10min, thus finishing the first plastification process; regulating the rotating speed of a vacuum grinder to 50-130rpm, dispersing the materials in the mortar at normal temperature with the brayer, and starting a vacuum pump at the same time for grinding in vacuum for 10min, thus finishing the second plastification process and obtaining a finished product; weighing a certain amount of the finished product paste material, putting into a test cup, putting the test cup into a 30 DEG C thermostatic water bath, standing still at a constant temperature for 1hr, and then testing the viscosity. Through vacuum grinding, the stability of the paste material is improved, and then the disintegration of secondary particles of the PVC paste resin can be accelerated, so that the paste material of PVC paste resin with relatively stable time-dependent behavior can be obtained.

Description

technical field [0001] The invention relates to the technical field of chemical industry adhesives, in particular to provide a preparation method of a PVC paste resin paste for improving the stability of the PVC paste resin paste. Background technique: [0002] At present, in the laboratory and industrial production, the paste preparation methods of PVC paste resin are commonly used with stirring method and vacuum stirring method. [0003] The main purpose of atmospheric pressure stirring and vacuum stirring is to fully mix the PVC paste resin powder with the plasticizer to form a usable and stable PVC paste resin paste. [0004] The paste making steps of stirring method are as follows: [0005] ①Weigh PVC paste resin powder, plasticizer and other additives in the mixer according to a certain proportion. [0006] ② After mixing the materials manually, fix the mixer under the mixer and adjust the mixing. [0007] ③ Use an electric stirrer to stir for a period of time at a ...

Claims

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Application Information

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IPC IPC(8): C09J127/06C09J11/06
Inventor 朱晓静郭月赵春明杨睿
Owner SHENYANG CHEM IND CO LTD
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