Preparation method of yellowing-resistant and high-brightness ABS resin

An ABS resin and high whiteness technology, applied in the preparation of high whiteness ABS resin and the field of yellowing resistance, can solve the problems of migration and precipitation, limited dispersion effect, etc., and achieve the effect of reducing yellow index, promoting dispersion and preventing migration.

Active Publication Date: 2019-06-28
中化国际聚合物(连云港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These metal passivators are often introduced into the matrix resin during the processing of ABS resin, so their dispersion effect is still limited, and migration and precipitation will also occur. Therefore, how to prevent metal ion passivators from migrating from the interior of the matrix resin It is the key to improve the apparent performance of ABS resin

Method used

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  • Preparation method of yellowing-resistant and high-brightness ABS resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In terms of parts by mass, put 300g of polybutadiene latex (average particle size 320nm, solid content 40%) on a dry basis in a 2000ML reactor, add 3g of rosin soap on a dry basis, 1g of anhydrous Potassium carbonate, 0.6g initiator cumene hydroperoxide, 0.1g reducing agent ferrous sulfate, 0.3g chelating agent sodium pyrophosphate, 0.5g co-reducing agent fructose and 1200g desalinated water were stirred at room temperature for 10 minutes to make them After all the additives were completely dissolved, nitrogen was introduced into the reaction kettle to replace the air inside the reaction kettle twice. The temperature was raised to 65°C.

[0018] After the temperature of the reactor is stabilized for 10 minutes, slowly add 150 g of styrene, 50 g of acrylonitrile, 5 g of vinyl phosphate functional monomer, and 0.5 g of initiator cumene hydroperoxide dropwise to the reactor, and the dropping time is 2.5 Hours, after the dropwise addition, 0.1g of the initiator was added d...

Embodiment 2

[0022] In terms of parts by mass, put 300g of polybutadiene latex (average particle size 320nm, solid content 40%) on a dry basis in a 2000ML reactor, add 3g of rosin soap on a dry basis, 1g of anhydrous Potassium carbonate, 0.6g initiator cumene hydroperoxide, 0.1g reducing agent ferrous sulfate, 0.3g chelating agent sodium pyrophosphate, 0.5g co-reducing agent fructose and 1200g desalinated water were stirred at room temperature for 10 minutes to make them After all the additives were completely dissolved, nitrogen was introduced into the reaction kettle to replace the air inside the reaction kettle twice. The temperature was raised to 65°C.

[0023] After the temperature of the reactor is stabilized for 10 minutes, slowly add 150 g of styrene, 50 g of acrylonitrile, 10 g of vinyl phosphate functional monomer, and 0.5 g of initiator cumene hydroperoxide dropwise to the reactor, and the dropping time is 2.5 Hours, after the dropwise addition, 0.1g of the initiator was added ...

Embodiment 3

[0027] In terms of parts by mass, put 300g of polybutadiene latex (average particle size 320nm, solid content 40%) on a dry basis in a 2000ML reactor, add 3g of rosin soap on a dry basis, 1g of anhydrous Potassium carbonate, 0.6g initiator cumene hydroperoxide, 0.1g reducing agent ferrous sulfate, 0.3g chelating agent sodium pyrophosphate, 0.5g co-reducing agent fructose and 1200g desalinated water were stirred at room temperature for 10 minutes to make them After all the additives were completely dissolved, nitrogen was introduced into the reaction kettle to replace the air inside the reaction kettle twice. The temperature was raised to 65°C.

[0028] After the temperature of the reactor is stabilized for 10 minutes, slowly add 150 g of styrene, 50 g of acrylonitrile, 10 g of vinyl diethyl phosphate monomer, and 0.5 g of the initiator cumene hydroperoxide dropwise to the reactor for a time of After 2.5 hours, add 0.1g of initiator dropwise to the reactor again after the drop...

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Abstract

The invention relates to a preparation method of yellowing-resistant and high-brightness ABS resin and belongs to the field of synthetic resin. A functional monomer polymerized phosphate monomer is introduced in the synthetic process of ABS grafting powder and is chelated with metal ions in a matrix resin, so that the defects of the ABS resin are reduced, the thermo-oxidative aging resistance of the ABS resin is improved, the crosslinking aging level of butadiene double bonds in the resin is decreased, the annulation reaction among cyano groups is prevented, the yellow color index is decreased, and the whiteness is increased.

Description

technical field [0001] The invention belongs to the field of synthetic resins, and in particular relates to a preparation method of anti-yellowing and high-whiteness ABS resin. Background technique [0002] As one of the five major engineering plastics, ABS resin is widely used in the fields of automobile manufacturing, electrical and electronics, and home appliance production because of its good mechanical properties and processing properties. With the extension of the application field of ABS resin, people are paying more and more attention to the apparent properties of ABS resin, such as yellowness index, whiteness, etc. Many large home appliance companies even list the apparent properties of ABS resin as the key to evaluate the quality of ABS resin products. The key factor, therefore, how to reduce the yellowness index and improve the whiteness of ABS resin itself has become the core problem faced by the development of ABS resin at present. [0003] ABS resin is a polym...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/12C08L55/02C08F279/02C08F230/02C08F212/10
Inventor 刘伯军杜帅张明耀白阳杨斌斌
Owner 中化国际聚合物(连云港)有限公司
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