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In situ chain extension repairing-based regenerated ABS/HIPS alloy material and preparation method thereof

An alloy material and in-situ technology, applied in the field of preparation of the above-mentioned recycled alloys, can solve problems such as limited compatibility, reduced performance of recycled materials, deterioration of toughness, etc., to achieve growth and repair of broken chains, improve interface force weakening, increase The effect of chain extension potential

Active Publication Date: 2018-04-20
CHINA NAT ELECTRIC APP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] From the structural analysis of ABS and HIPS after aging, it is known that the rubber phase in waste HIPS and waste ABS is oxidized into hydroxyl and carboxyl groups, and the molecular structure has undergone changes such as fracture and rearrangement, which directly lead to: 1) The main macroscopic mechanical properties are maintained in the waste 2) The rubber phase in waste HIPS and waste ABS is greatly affected. On the one hand, the interfacial bonding force between the rubber phase and the matrix phase is reduced, resulting in a decline in comprehensive mechanical properties. On the other hand, the rubber content is significantly 3) The compatibility of waste HIPS and waste ABS is limited, and direct forced mixing and modification will further reduce the performance of recycled materials

Method used

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  • In situ chain extension repairing-based regenerated ABS/HIPS alloy material and preparation method thereof
  • In situ chain extension repairing-based regenerated ABS/HIPS alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The recycled ABS / HIPS alloy material based on in-situ chain extension repair provided in this example is mainly composed of the following components by mass:

[0037] Mixture of waste ABS and waste HIPS: 100

[0038] ABS-based macromolecular chain extender: 5

[0039] HIPS-based macromolecular chain extender: 5.

[0040] Wherein the macromolecular chain extender is ABS grafted oxazoline, which is prepared by the following method: taking ABS high-glue powder, ethanolamine and zinc acetate as raw materials, 2,6-dichlorotoluene as solvent, and placing it in a reaction vessel to adjust The temperature is 170° C. after cold reflux reaction for 3 hours, and then the frozen precipitate is sucked and dried to obtain the macromolecular chain extender ABS grafted oxazoline.

[0041] The mass ratio of ABS high rubber powder, ethanolamine and zinc acetate is 100:50:3.

[0042] The consumption of 2,6-dichlorotoluene is 10 times of the total mass of raw material ABS high rubber po...

Embodiment 2

[0049] The regenerated ABS / HIPS alloy material based on in-situ chain extension repair provided in this example is composed of the following components by mass:

[0050] Mixture of waste ABS and waste HIPS: 100

[0051] ABS-based macromolecular chain extender: 3

[0052] HIPS-based macromolecular chain extender: 5.

[0053] Wherein the macromolecular chain extender is ABS grafted oxazoline, which is prepared by the following method: taking ABS high-glue powder, ethanolamine and zinc acetate as raw materials, 2,6-dichlorotoluene as solvent, and placing it in a reaction vessel to adjust The temperature is 180° C. after cold reflux reaction for 2 hours, and then the frozen precipitate is suction-filtered and dried to obtain the macromolecular chain extender ABS-grafted oxazoline.

[0054] The mass ratio of ABS high rubber powder, ethanolamine and zinc acetate is 100:30:2.

[0055] The consumption of 2,6-dichlorotoluene is 8 times of the total mass of raw material ABS high rubb...

Embodiment 3

[0062] The recycled ABS / HIPS alloy material based on in-situ chain extension repair provided in this example is mainly composed of the following components by mass:

[0063] Mixture of waste ABS and waste HIPS: 100

[0064] ABS-based macromolecular chain extender: 5

[0065] HIPS-based macromolecular chain extender: 3.

[0066] Wherein the ABS-based macromolecular chain extender is the same as in Example 1.

[0067] The HIPS-based macromolecular chain extender is the same as in Example 1.

[0068] The mixture of waste ABS and waste HIPS is the same as in Example 1.

[0069] The preparation method of the regenerated ABS / HIPS alloy material based on in-situ chain extension repair comprises the following steps: mixing waste ABS, waste HIPS mixture, and HIPS-based macromolecular chain extender according to the above-mentioned dosage relationship to obtain a mixed material, which is obtained from a twin-screw The main feeding device of the extruder adds the mixed material to me...

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Abstract

The invention discloses an in situ chain extension repairing-based regenerated ABS / HIPS alloy material. The in situ chain extension repairing-based regenerated ABS / HIPS alloy material comprises, by weight, 100 parts of a waste ABS and waste HIPS mixture, 1-5 of an ABS-based macromolecular chain extender and 1-5 parts of an HIPS-based macromolecular chain extender. The in situ chain extension, thein situ compatibilization and the toughening effects of the macromolecular chain extender are used to realize growth and repairing of the broken chain, improve the phase interface, increase the compatibility and improve the glue content, so the regenerated plastic-alloy material having reduced flow and excellent comprehensive performances is prepared, wastes are fully utilized, and energy saving and emission reduction are achieved. The invention also discloses a preparation method of the regenerated alloy material.

Description

technical field [0001] The invention belongs to the technical field of recycling waste plastics, and specifically relates to a regenerated ABS / HIPS alloy prepared by modification using a macromolecular chain extender, in-situ chain extension, in-situ volume expansion and toughening. Process for the preparation of secondary alloys. Background technique [0002] Both HIPS (high impact polystyrene) and ABS (acrylonitrile-butadiene-styrene copolymer) have excellent comprehensive properties and are widely used in home appliances, and there are many homologous applications, such as various electrical appliances These two materials are mainly used for the shell of the mobile phone. Therefore, when dismantling waste household appliances, a large amount of waste ABS and waste HIPS mixed materials are inevitably produced. Due to the similar appearance and density of waste HIPS and waste ABS, it is difficult to effectively separate the mixture of the two or the cost of separation is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L51/04B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08L51/04C08L55/02C08L2207/20
Inventor 曹诺符永高王玲胡嘉琦万超刘阳邓梅玲杜彬韩文生王鹏程
Owner CHINA NAT ELECTRIC APP RES INST
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