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High-content aerogel master batch and preparation method thereof

An airgel, high-content technology, applied in the field of airgel, can solve the problems of high hardness, poor toughness, poor spinning quality, etc., and achieve the effect of high airgel content, high product processability, and no defects in appearance

Pending Publication Date: 2022-07-22
斯坦德瑞琪色彩(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because airgel has a large specific surface area, low density, and light powder, it is difficult to process masterbatches. At the same time, the existing airgel masterbatches are only granulated after simple mixing. The dispersibility of the masterbatch is poor, and the airgel content in the masterbatch is difficult to reach more than 10%. The existing improvement method is to increase the dispersibility of the masterbatch by adding a certain amount of additives, but it is not in the process before granulation. At the same time, the pore structure of airgel is easily destroyed, so the type and ratio of additives will also affect the function of airgel. Although the content and dispersibility of airgel increase, it is difficult to Processing granulation or prepared airgel masterbatch has high hardness, poor toughness, difficulty in subsequent use, low processing performance of masterbatch, and poor spinning quality

Method used

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  • High-content aerogel master batch and preparation method thereof
  • High-content aerogel master batch and preparation method thereof
  • High-content aerogel master batch and preparation method thereof

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preparation example Construction

[0028] The present invention discloses a high-content aerogel masterbatch and a preparation method thereof, wherein the preparation method of the high-content aerogel masterbatch includes the following steps:

[0029] S1: In parts by weight, 20-30 parts of aerogel and 6-26 parts of dispersant and / or coupling agent are prepared;

[0030] S2: Put the above materials into a high-speed mixer, mix at a low speed of 50 rpm-100 rpm for 3 minutes-5 minutes, and then adjust to a speed of 300 rpm-600 rpm Mixing at high speed for 3 minutes to 5 minutes to obtain mixed materials;

[0031] S3: Put 44 parts-74 parts of the carrier resin together with the mixed material in step S2 into the high mixer, first mix at a low speed of 50 r / min-100 r / min for 2 minutes-5 minutes, and then Adjusted to a high rotational speed of 300 rpm to 600 rpm and mixed for 5 minutes to 10 minutes to obtain a master batch;

[0032] S4: Introduce the masterbatch obtained in step S3 into a heat-preserving internal...

Embodiment 1

[0044] It includes the following steps:

[0045] S1: In parts by weight, equipped with the following materials:

[0046]

[0047] S2: Put the above materials into a high-speed mixer, mix at a low speed of 50 rpm-100 rpm for 3 minutes-5 minutes, and then adjust to a speed of 300 rpm-600 rpm Mixing at high speed for 3 minutes to 5 minutes to obtain mixed materials;

[0048] S3: Put 66 parts of PBT resin powder together with the mixed material in step S2 into the high mixer, first mix at a low speed of 50 rpm to 100 rpm for 2 minutes to 5 minutes, and then adjust Mixing for 5 minutes to 10 minutes at a high rotational speed of 300 rpm to 600 rpm to obtain a master batch;

[0049] S4: Introduce the masterbatch obtained in step S3 into a heat-preserving internal mixer, where the internal mixing temperature in the heat-preserving internal mixer is 200°C-250°C, and the internal mixing is 20-50 minutes;

[0050] S5: take out the master batch after banburying, after cooling, pulver...

Embodiment 2

[0053] It includes the following steps:

[0054] S1: In parts by weight, equipped with the following materials:

[0055]

[0056] S2: Put the above materials into a high-speed mixer, mix at a low speed of 50 rpm-100 rpm for 3 minutes-5 minutes, and then adjust to a speed of 300 rpm-600 rpm Mixing at high speed for 3 minutes to 5 minutes to obtain mixed materials;

[0057] S3: Put 60 parts of the PBT resin powder together with the mixed material in step S2 into the high mixer, first mix at a low speed of 50 rpm to 100 rpm for 2 minutes to 5 minutes, and then adjust Mixing for 5 minutes to 10 minutes at a high rotational speed of 300 rpm to 600 rpm to obtain a master batch;

[0058] S4: Introduce the masterbatch obtained in step S3 into a heat-preserving internal mixer, where the internal mixing temperature in the heat-preserving internal mixer is 200°C-250°C, and the internal mixing is 20-50 minutes;

[0059] S5: take out the master batch after banburying, after cooling, ...

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Abstract

The invention discloses a high-content aerogel master batch and a preparation method thereof. The preparation method of the high-content aerogel master batch comprises the following steps: preparing materials, mixing the materials, granulating and verifying the processability of the master batch. According to the scheme, the compatibility and the combination degree between aerogel and carrier resin are enhanced by adding the dispersing agent and / or the coupling agent, mixing and internal mixing are performed in stages before granulation through the combined action of the high-speed mixing machine and the internal mixer, and pre-processing such as crushing and drying is performed on the master batch, so that the dispersity of all materials in the master batch is improved; the processability of the master batch is verified in a spinning mode, so that the toughness of a product spun by the master batch prepared by the preparation method in the scheme is ensured.

Description

technical field [0001] The invention relates to the field of aerogel, in particular to a high-content aerogel master batch and a preparation method thereof. Background technique [0002] Aerogel is a new nanomaterial obtained by polycondensation of colloidal particles or polymer molecules to form nanostructures, and then replacing the liquid in the gel pores with gas through a special drying process while maintaining the gel skeleton structure from collapsing. The porosity is as high as more than 90 percent. The unique three-dimensional network porous structure of aerogel makes it not only low in thermal conductivity (as low as 0.018W / m.k), low in density, and large in specific surface area (600-800m 2 / g), and sound absorption and noise reduction, compressive and impact resistance, and has the characteristics of Class A fire prevention, overall hydrophobicity, etc., and its performance is far superior to other traditional insulation materials. As a new type of nanomaterial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/22C08L67/02C08L71/02C08L23/06C08K3/36C08K5/098C08K5/12D01F6/92D01F1/10B29B9/06B29B9/12B29B7/74
CPCC08J3/226D01F6/92D01F1/10B29B9/06B29B9/12B29B7/005B29B7/7461C08J2467/02C08J2471/02C08J2423/06C08K3/36C08K5/098C08K5/12
Inventor 赵青刘永胜周彦曹亚鹏葛青青徐强
Owner 斯坦德瑞琪色彩(苏州)有限公司
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