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Foaming master batch for ABS microcellular foaming material and preparation method thereof

A foaming masterbatch and microporous material technology, applied in the field of foaming masterbatch and its preparation, to achieve high compatibility, saving ABS raw materials, and low equipment requirements

Active Publication Date: 2015-12-09
GUIZHOU MATERIAL IND TECH INSTITUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Document 2 "Patent Application No. 201310315454.3 Chinese Patent" discloses a foaming masterbatch for microcellular foaming of polystyrene. The foaming masterbatch involved in this invention is also not suitable for the micropores of ABS and its composite materials. foaming

Method used

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  • Foaming master batch for ABS microcellular foaming material and preparation method thereof
  • Foaming master batch for ABS microcellular foaming material and preparation method thereof
  • Foaming master batch for ABS microcellular foaming material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) First, mix 45 parts of ABS, 4 parts of zinc oxide, 0.75 parts of zinc stearate and 0.25 parts of white oil in a mixer, and then use a twin-screw extruder to extrude and granulate. The barrel temperature is 190-200 °C, screw speed 200r / min;

[0025] (2) After mixing 39.8 parts of SBS, 9.95 parts of azodicarbonamide with a particle size of 1-20 μm, and 0.25 parts of white oil in a mixer, extrude and granulate with a twin-screw extruder. Temperature 125-145°C, screw speed 150r / min;

[0026] (3) Take the pellets in the above step (1) and the pellets in step (2), mix them evenly, and extrude pellets in the twin-rotor continuous kneader and single-screw extruder unit. The barrel temperature 100-120°C, screw speed 120r / min, to obtain foam masterbatch.

[0027] (4) After blending the foam masterbatch and ABS obtained in the above step (3) evenly at a weight ratio of 1:9, prepare a standard sample on the injection molding machine, and the performance test results are shown...

Embodiment 2

[0029] (1) First, mix 29.8 parts of ABS, 2.76 parts of zinc oxide, 0.57 parts of zinc stearate and 0.17 parts of DOP in a mixer, and then extrude and granulate with a twin-screw extruder at a barrel temperature of 190 -210℃, screw speed 200r / min;

[0030] (2) After mixing 53.1 parts of SBS, 13.27 parts of azodicarbonamide with a particle size of 1-20 μm, and 0.33 parts of DOP in a mixer, extrude and granulate with a twin-screw extruder. Temperature 125-145°C, screw speed 150r / min;

[0031] (3) Take the pellets in the above step (1) and the pellets in step (2), mix them evenly, and extrude pellets in the twin-rotor continuous kneader and single-screw extruder unit. The barrel temperature 110-130°C, screw speed 120r / min, to obtain foam masterbatch.

[0032] (4) After blending the foam masterbatch and ABS obtained in the above step (3) at a weight ratio of 3:17, prepare a standard sample on the injection molding machine, and the performance test results are shown in Table 1. for...

Embodiment 3

[0034] (1) First, mix 29.8 parts of ABS, 2.76 parts of zinc oxide, 0.57 parts of zinc stearate and 0.17 parts of white oil in a mixer, and then extrude and granulate with a twin-screw extruder at a barrel temperature of 190 -200℃, screw speed 200r / min;

[0035] (2) After mixing 59.7 parts of HIPS, 6.64 parts of azodicarbonamide with a particle size of 1-20 μm, and 0.36 parts of white oil in a mixer, extrude and granulate with a twin-screw extruder. Temperature 110-130°C, screw speed 150r / min;

[0036] (3) Take the pellets in the above step (1) and the pellets in step (2), mix them evenly, and extrude pellets in the twin-rotor continuous kneader and single-screw extruder unit. The barrel temperature 100°C, screw speed 100-120r / min, to obtain foam masterbatch.

[0037] (4) After blending the foam masterbatch and ABS obtained in the above step (3) at a weight ratio of 3:17, prepare a standard sample on the injection molding machine, and the performance test results are shown in...

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Abstract

The invention discloses a foaming master batch for an ABS microcellular foaming material and a preparation method thereof. The foaming master batch is prepared from 20-70 parts of polymer carriers, 15-60 parts of acrylonitrile-butadiene-styrene polymers (ABS resin), 2-20 parts of foaming agents, 1-7 parts of activating agents and 0.1-1 part of lubricating agent. In preparation, first, the ABS resin, the activating agents and the lubricating agent are mixed to perform granulation; then, the polymer carriers, the foaming agents and the lubricating agent are mixed for granulation; finally, the two kinds of obtained granule materials are granulated in a dual-rotor continuous mixing mill and single screw extruder unit to obtain the foaming master batch. The compatibility between the master batch and ABS as well as between the master batch and an ABS base compound material is high, the foaming agents can be better dispersed inside the base material, obtained cell structures are evener and compacter, the usage amount of the ABS can be reduced while the cell structures small in size, even in distribution and large in cell density are obtained, and the foaming master batch is particularly suitable for large-scale industrialized production.

Description

technical field [0001] The invention relates to a foaming masterbatch and a preparation method thereof, in particular to a foaming masterbatch for acrylonitrile-butadiene-styrene copolymer (ABS) microcellular foaming materials and a preparation method thereof The invention belongs to the technical field of microporous foam materials. Background technique [0002] ABS is a copolymer grafted from polybutadiene rubber, monomer styrene and acrylonitrile. It has impact resistance, low temperature resistance, excellent insulation performance, good surface gloss, easy to paint and color, etc. Advantages, mainly used in machinery, automobiles, building materials and electronics, electrical industries. [0003] Compared with unfoamed materials, the density of foamed plastics can be reduced by 5% to 95%, thereby reducing raw material consumption and cost. At the same time, it has the advantages of good sound insulation and heat insulation performance, shock load absorption, good cush...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L51/04C08L55/02C08L91/00C08K13/02C08K3/22C08K5/098C08K5/12C08J9/10
Inventor 张翔蒋团辉龚维何力王醴均黄斌
Owner GUIZHOU MATERIAL IND TECH INSTITUE