Silicone master batch with high silicone content and preparation method of silicone master batch

A technology of high silicone content and silicone masterbatch, which is applied in the field of polymer materials, can solve the problems of low silicone content and complicated preparation process, and achieve the effects of high production efficiency, simple process and basic mechanical properties

Inactive Publication Date: 2015-10-21
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a silicone masterbatch with high silicone content and its preparation method for the defects of low silicone content and complicated preparation process of the existing silicone masterbatch. Compared with the silicone masterbatch, the silicone masterbatch with a silicone content higher than 50% can be obtained by mixing and extruding granulation, which can effectively improve the processing performance and friction resistance of the material while maintaining the basic mechanical properties of the material.

Method used

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  • Silicone master batch with high silicone content and preparation method of silicone master batch
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  • Silicone master batch with high silicone content and preparation method of silicone master batch

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Experimental program
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Effect test

Embodiment 1

[0037] A silicone masterbatch with high silicone content, the weight ratio of raw materials is as follows:

[0038] Silicone 50%

[0039] Carrier resin 39.5%

[0040] Compatibilizer 10%

[0041] Auxiliary 0.5%

[0042] The silicone is methyl silicone oil with a number average molecular weight of 1 million;

[0043] The carrier resin is low-density polyethylene (LDPE), 2426K;

[0044] The compatibilizer is hydrogenated styrene-butadiene block copolymer (SEBS), Baling Petrochemical YH 501;

[0045] The auxiliary agent is antioxidant B245.

[0046] First weigh the carrier resin, compatibilizer, and additives and mix them in a mixer with a rotation speed of 400-600rpm for 5 minutes; then pass the mixed materials together with the weighed silicone through a twin-screw extruder at 120 Extrude and granulate at -160°C with a rotational speed of 200-300 rpm to obtain a silicone masterbatch.

Embodiment 2

[0048] A silicone masterbatch with high silicone content, the weight ratio of raw materials is as follows:

[0049] Silicone 65%

[0050] Carrier resin 19.2%

[0051] Compatibilizer 15%

[0052] Auxiliary 0.8%

[0053] The silicone is a methyl vinyl silicone rubber with a molecular weight of 700,000;

[0054] The carrier resin is homopolypropylene (PP), T30S;

[0055] The compatibilizer is styrene-butadiene block copolymer (SBS), Baling Petrochemical YH-791;

[0056] Described auxiliary agent is antioxidant B245 and ultraviolet absorber UV-P;

[0057] First weigh the carrier resin, compatibilizer and additives and mix them in a mixer with a rotation speed of 600-800rpm for 5 minutes; then pass the mixed materials together with the weighed silicone through the twin-screw extruder at 190 Extrude and granulate at -240°C with a rotational speed of 200-300 rpm to obtain a silicone masterbatch.

Embodiment 3

[0059] A silicone masterbatch with high silicone content, the weight ratio of raw materials is as follows:

[0060] Silicone 55%

[0061] Carrier resin 29.7%

[0062] Compatibilizer 15%

[0063] Auxiliary 0.3%

[0064] Described silicone is the methyl silicone oil that molecular weight is 750,000;

[0065] The carrier resin is homopolymerized high-impact polystyrene (HIPS), Taiwan Chimei PH88;

[0066] Described auxiliary agent is antioxidant AT10 and ultraviolet absorber UV-P;

[0067] The compatibilizer is styrene-butadiene block copolymer (SBS), Baling Petrochemical YH-802.

[0068] First weigh the carrier resin, compatibilizer, and additives and mix them in a mixer with a rotation speed of 800-1000rpm for 5 minutes; then pass the mixed materials together with the weighed silicone through a twin-screw extruder at 200 Extrude and granulate at -240°C with a rotational speed of 200-300 rpm to obtain a silicone masterbatch.

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Abstract

The invention relates to silicone master batch with a high silicone content and a preparation method of the silicone master batch and belongs to the technical field of macromolecular materials. The silicone master batch with the high silicone content is prepared from the following raw materials which are mixed through a mixer and extruded and granulated through a twin-screw extruder in percentage by weight: 50-65% of silicone, 5-40% of carrier resin, 5-30% of a compatilizer, 0-10% of filler and 0-5% of auxiliaries, wherein the content of silicone can be higher than 50%. By adding the silicone master batch with the high silicone content provided by the invention, the basic mechanical properties of a material can be maintained well while the rub resistance and processability of the material can be further effectively improved. The production efficiency can be improved to a great extent, and the demand on the processability and rub resistance of materials in industries such as automobiles, electronics and the like can be satisfied.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a silicone masterbatch with high silicone content and a preparation method thereof. Background technique [0002] Polyorganosiloxane is a kind of polymer with repeated Si-O bonds as the main chain. Since a series of organic substituents can be connected to the silicon atom position, polysiloxane is a kind of polymer between organic and inorganic. Special polymer materials, with many unique physical properties, can be used as cost-effective processing aids and modifiers in the production of thermoplastics. (Yilgor E, et al. Progress in Polymer Science 2014;39(6):1165-1195) Silicone masterbatch is mainly composed of ultra-high molecular weight polysiloxane (hereinafter referred to as "silicone") and carrier resin (general-purpose Plastic) is a functional additive combined. [0003] Compared with traditional processing aids, silicone masterbatches have higher stability, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08L23/06C08L53/02C08L23/12C08L51/04C08L23/08C08K3/34C08J3/22
Inventor 李谦闫冬雪余谦
Owner CHINA BLUESTAR CHENGRAND CO LTD
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