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Silane coupling agent γ-aminopropyltriethoxysilane pre-dispersed masterbatch and preparation method thereof

A technology of aminopropyltriethoxysilane and pre-dispersed masterbatch, applied in the field of silane coupling agent γ-aminopropyltriethoxysilane pre-dispersed masterbatch and its preparation, can solve the problem of rubber mixing. Long refining cycle, slow dispersion of liquid additives, poor fluidity, etc., can improve the mixing effect, improve compatibility, and reduce dust pollution.

Active Publication Date: 2018-06-12
NINGBO ACTMIX POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the silane coupling agent KH550 is a colorless or slightly yellow transparent liquid at room temperature. When it is put into the internal mixer and mixed with rubber, the mixing is slow due to the polarity difference between it and some rubbers, and it is mixed in the dense The mixing in the mill needs to be carried out under relatively low shear force, and because the liquid additives are mixed into the rubber, the dispersion is slow and the fluidity is poor, resulting in a long rubber mixing cycle and low efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The silane coupling agent γ-aminopropyltriethoxysilane pre-dispersed masterbatch of Example 1, in parts by weight, the composition of the masterbatch is: 51 parts of γ-aminopropyltriethoxysilane , 29 parts of white carbon black, 11 parts of EPDM rubber, 3 parts of EVA resin, 1 part of stearic acid, 4 parts of rubber oil, and 1 part of fatty acid alcohol ester. The preparation method of this master batch, comprises the following steps:

[0024] (1) Prepare the sheet rubber matrix;

[0025] (2) Accurately weigh the raw materials required for the preparation of masterbatch according to the ratio;

[0026] (3) White carbon black is used as a carrier and mixed with liquid γ-aminopropyltriethoxysilane to obtain a solid premix;

[0027] (4) Feed the premix and the rest of the raw materials into the internal mixer in three separate batches, mix them evenly, and discharge the materials at a temperature of 65 °C to obtain the rubber compound;

[0028] (5) The given rotational ...

Embodiment 2

[0029] The silane coupling agent γ-aminopropyltriethoxysilane pre-dispersed masterbatch of Example 2, in parts by weight, the composition of the masterbatch is: 49 parts of γ-aminopropyltriethoxysilane , 27 parts of white carbon black, 12 parts of EPDM rubber, 4 parts of EVA resin, 2 parts of stearic acid, 5 parts of rubber oil, and 1 part of fatty acid alcohol ester. The preparation method of this master batch, comprises the following steps:

[0030] (1) Prepare the sheet rubber matrix;

[0031] (2) Accurately weigh the raw materials required for the preparation of masterbatch according to the ratio;

[0032] (3) White carbon black is used as a carrier and mixed with liquid γ-aminopropyltriethoxysilane to obtain a solid premix;

[0033] (4) Feed the premix and the rest of the raw materials into the internal mixer in three separate batches, mix them evenly, and discharge the materials at a temperature of 68 °C to obtain the rubber compound;

[0034] (5) The given rotational...

Embodiment 3

[0035] The silane coupling agent γ-aminopropyltriethoxysilane pre-dispersed masterbatch of Example 3, in parts by weight, the composition of the masterbatch is: 50 parts of γ-aminopropyltriethoxysilane , 28 parts of calcium carbonate, 10 parts of EPDM rubber, 4 parts of EVA resin, 3 parts of stearic acid, 4 parts of rubber oil, and 1 part of fatty acid alcohol ester. The preparation method of this master batch, comprises the following steps:

[0036] (1) Prepare the sheet rubber matrix;

[0037] (2) Accurately weigh the raw materials required for the preparation of masterbatch according to the ratio;

[0038] (3) Calcium carbonate is used as a carrier and mixed with liquid γ-aminopropyltriethoxysilane to obtain a solid premix;

[0039] (4) Feed the premix and other raw materials into the internal mixer three times respectively, mix them evenly, and discharge the materials at a temperature of 67 °C to obtain the rubber compound;

[0040] (5) The given rotational speed of the...

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Abstract

The invention discloses a silane coupling agent (gamma-aminopropyltriethoxysilane) pre-dispersed master batch, which can solve the problem of low speed of mixing due to polarity difference between liquid-state gamma-aminopropyltriethoxysilane and rubber during direct mixing. On a normal storage condition, the master batch has stable performance without separation of activated components; at a room temperature, the master batch is free of adhesion so that blending is facilitated, blending accuracy is increased, and blending error is reduced; the master batch has good flow characteristic after being mixed with rubber, has high loading capacity, can be bonded with rubber closely in time even when polarity thereof is different from polarity of rubber, keeps good dispersibility under action of different shear force, further can improve dispersibility and flow characteristic of active ingredients of rubber, shorten cycle of mixing with rubber, improve mixing effect and rubber production efficiency, reduce dust pollution and improve work environment for workers, and also has effect of reducing rejection rate of rubber products.

Description

technical field [0001] The invention relates to the technical field of rubber additives and its preparation, in particular to a silane coupling agent γ-aminopropyltriethoxysilane pre-dispersed masterbatch and a preparation method thereof. Background technique [0002] Silane coupling agent KH550, the Chinese name is γ-aminopropyltriethoxysilane, which is an amino-functional silane and is alkaline. Appearance is colorless or light yellow transparent liquid, highly versatile, soluble in organic solvents. The molecule of KH550 contains two different active genes—amino group and oxygen group, which are used to couple organic polymers and inorganic fillers, enhance their cohesiveness, and improve the mechanical, electrical, water resistance, and anti-aging properties of the product. KH550 is commonly used in glass fiber, casting, textile additives, insulating materials, adhesives and other industries. [0003] Silane coupling agent KH550 has a wide range of uses, and can be app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L23/08C08L91/00C08K13/02C08K5/09C08K5/10C08K5/544C08K3/36C08K3/26B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08L23/16C08L2205/03C08L23/0853C08L91/00C08K13/02C08K5/09C08K5/10C08K5/544C08K3/36C08K2003/265
Inventor 连千荣
Owner NINGBO ACTMIX POLYMER
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