Use of dicarboxylate as PVC heat stabilizer

A dicarboxylic acid salt and heat stabilizer technology, which is applied in the field of aliphatic dicarboxylic acid salt as a heat stabilizer for polyvinyl chloride, to achieve the effect of improving long-term stability

Inactive Publication Date: 2006-09-06
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this invention is to provide the new application of aliphatic dicarboxylic aci

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Example 1:

[0012] Experimental group 1: PVC 100g, DOP50g, and 0.5g lead azelate were mixed uniformly, placed in an oven and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0013] Experimental group 2: PVC 100g, DOP50g, and 1g lead azelate were mixed uniformly, placed in an oven, and kept at 120°C for 20 minutes to prepare PVC test pieces.

[0014] Experimental group 3: PVC 100g, DOP50g, and 2g lead azelate were mixed uniformly, placed in an oven and kept at 120°C for 20 minutes to prepare PVC test pieces.

[0015] Comparative group: PVC 100g and DOP50g were placed in an oven and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0016] Congo Red experiment: Cut the PVC test pieces of the experimental group and the control group into 2mm×2mm granular samples, put them into test tubes, vibrate slightly and keep the powdered samples at a certain temperature in static air. Measure the time when the decompo...

Example Embodiment

[0019] Example 2:

[0020] Experimental group 1: PVC 100g, DOP50g, and 0.5g calcium pimelate were mixed uniformly, placed in an oven, and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0021] Experimental group 2: PVC 100g, DOP50g, and 1g calcium pimelate were mixed uniformly, placed in an oven and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0022] Experimental group 3: PVC 100g, DOP50g, and 1.5g calcium pimelate were mixed uniformly, placed in an oven and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0023] Experimental group 4: PVC 100g, DOP50g, and 3g calcium pimelate were mixed uniformly and placed in an oven at 120°C for 20 minutes to prepare PVC test pieces.

[0024] Comparative group: PVC 100g and DOP50g were placed in an oven and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0025] The PVC test pieces of the experiment...

Example Embodiment

[0027] Example 3:

[0028] Experimental group 1: PVC 100g, DOP50g, 2g calcium pimelate (C=7) were mixed uniformly, placed in an oven, kept at 120°C for 20 minutes to prepare PVC test pieces.

[0029] Experimental group 2: PVC 100g, DOP50g, 2g calcium azelate (C=8) were mixed uniformly, placed in an oven and kept at 120°C for 20 minutes to prepare PVC test pieces.

[0030] Experimental group 3: PVC 100g, DOP50g, 2g calcium sebacate (C=10) were mixed uniformly, placed in an oven, kept at 120°C for 20 minutes to prepare PVC test pieces.

[0031] Experimental group 4: PVC 100g, DOP50g, 2g calcium dimerate (C=36) were mixed uniformly, placed in an oven, kept at 120°C for 20 minutes to prepare PVC test pieces.

[0032] Comparative group: PVC 100g and DOP50g were placed in an oven and kept at a constant temperature of 120°C for 20 minutes to prepare PVC test pieces.

[0033] The PVC test pieces of the experimental group and the control group were subjected to a thermal baking discolorati...

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PUM

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Abstract

The invention relates to a new use of dicarboxylates as PVC heat stabilizer. The aliphatic dicarboxylates is nontoxic and environment-friendly, is of cheap price, lubricating quality and high metal content, and can improve inherent heat stability, paintability and long-term stability of PVC, so it has a good industry application prospect.

Description

technical field [0001] The present invention relates to a new application of dicarboxylic acid salts, in particular to the application of aliphatic dicarboxylic acid salts as heat stabilizers for polyvinyl chloride (PVC). Background technique [0002] In recent years, with the continuous growth of the amount of PVC materials at home and abroad, varieties of PVC heat stabilizers are also emerging. Currently commonly used PVC heat stabilizers mainly include lead salt heat stabilizers, metal soap heat stabilizers, organotin heat stabilizers, organic antimony stabilizers, rare earth stabilizers, etc. Lead salts (such as tribasic lead sulfate 3PbO·PbSO 4 ·H 2 O, dibasic lead stearate 2PbO·Pb(C 17 h 35 COO) 2 , lead dibasic phosphite (dibasic phosphorous acid) 2PbO·PbHPO 3 ·H 2 O) is the earliest and most widely used heat stabilizer, which has been playing a leading role in the field of stabilizer applications for many years, but it is toxic and not environmentally friendly...

Claims

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Application Information

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IPC IPC(8): C08L27/08C08K5/092
Inventor 刘伟区刘艳斌
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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