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Low-odor high-dispersion foaming master batch, and preparation method and application thereof

A foaming masterbatch and high dispersion technology, applied in the field of polymer materials, can solve the problems affecting the odor, uneven dispersion and degradation of modified plastic products, so as to avoid the influence of product appearance, fine cell diameter and low odor Effect

Inactive Publication Date: 2019-12-06
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, foaming agents are substances that can be decomposed at low temperatures, and degradation and emission problems often occur during the production process, such as odor and VOC
It will even affect the smell of modified plastic products; on the other hand, the phenomenon of uneven dispersion of foaming masterbatches is common in the market, especially for high-content foaming agent foaming masterbatch products, the problem of uneven dispersion is more serious

Method used

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  • Low-odor high-dispersion foaming master batch, and preparation method and application thereof
  • Low-odor high-dispersion foaming master batch, and preparation method and application thereof
  • Low-odor high-dispersion foaming master batch, and preparation method and application thereof

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Embodiment

[0033] A kind of preparation method of low smell, highly dispersed foaming masterbatch, comprises the following steps:

[0034] Step 1: Add 30-80 parts of carrier resin, 1-20 parts of polyether polyol, 1-10 parts of odor improver, 0.5-5 parts of dispersant, 1-10 parts of interface modifier, and 0.5-2.0 parts of additive Mix in a high-speed mixer for 1-3 minutes to obtain the mixed material;

[0035] Step 2: Feed the mixed material obtained in Step 1 into the extruder through the hopper of the twin-screw extruder, and then feed 20-70 parts of the foaming agent into the extruder through the second-stage side feeding port, after plasticizing and extruding , Granulation to obtain low-odor, high-dispersion foaming masterbatch.

[0036] The foaming agent is one of carbonates, bicarbonates, and alkali metal hydroxides, and the particle size is less than or equal to 5 μm, preferably a particle size of 2mm bicarbonate foaming agent, such as sodium bicarbonate, carbonic acid Potassium...

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Abstract

The invention discloses a low-odor high-dispersion foaming master batch and application of the same to a modified polymer material, belonging to the technical field of materials. The foaming materialcomprises the following components in parts by weight: 20-70 parts of a foaming agent, 1-20 parts of polyether polyol, 30-80 parts of carrier resin, 1-10 parts of an odor improver, 0.5-5 parts of a dispersing agent, 1-10 parts of an interface improver and 0.5-2.0 parts of an auxiliary agent. The invention also discloses a preparation method of the low-odor high-dispersion foaming master batch. Anodor removing agent in the low-odor high-dispersion foaming master batch interacts with volatile components generating odor in a modified plastic material during processing of the modified plastic material, and a mixture is extracted out of a modified polymer melt by utilizing the vacuum negative pressure effect of the vacuum port of an extruder, so the content of harmful volatile components suchas odor molecules of the modified plastic material is effectively reduced, and the increasingly high requirements for no toxicity, no odor and no harm of modified plastic products are met.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a low-odor, high-dispersion foam masterbatch and its application in modified polymer materials. Background technique [0002] Compared with traditional materials, the unique core foaming and surface crust sandwich structure of micro-foaming materials endows it with the advantages of reducing product weight and greatly reducing processing energy consumption while maintaining excellent mechanical strength and rigidity. It is used in automotive parts applications more and more. In recent years, as the automotive industry has increasingly stringent requirements for material emission, the requirements for low odor and low VOC have become higher and higher. However, foaming agents are substances that can be decomposed at low temperatures, and degradation and emission problems, such as odor and VOC, often occur during the production process. It will even affect the smell of modified p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L71/08C08L71/02C08K3/16C08K3/34C08K7/24C08J9/08C08J3/22C08L77/02C08L55/02
CPCC08J3/226C08J9/0061C08J9/0066C08J9/0071C08J9/08C08J2323/12C08J2355/02C08J2377/02C08J2423/08C08J2423/12C08J2471/02C08J2471/08C08K3/16C08K3/346C08K7/24
Inventor 王滨刘曙阳蒋顶军
Owner NANJING JULONG SCI&TECH CO LTD
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