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Fiber/TPI rubber master batch, preparing method thereof and application of the rubber master batch in rubber compositions

A rubber composition and fiber technology, applied in the field of fiber/TPI masterbatch and its preparation, can solve the problem of low fiber dispersion

Inactive Publication Date: 2015-07-22
QINGDAO TPI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the low dispersion of fibers in the rubber matrix in fiber-reinforced rubber composites in the prior art, and provide a preparation method for fiber / TPI masterbatch, which can further improve the fiber in the matrix by using the masterbatch. Dispersion and compatibility in rubber to improve the performance of fiber / rubber composites

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Stir and mix the trans-isoprene rubber and chopped carbon fiber. The ratio of trans-isoprene rubber to chopped carbon fiber is 2:1, and the Mooney viscosity of trans-isoprene rubber is 65. The length of chopped carbon fiber is 6mm, the stirring temperature is 30℃, the stirring time is 6min, the stirring speed is 1050r / min, naphthenic oil and borate modifier are added during the stirring process, the amount of naphthenic oil is TPI The amount of borate modifier is 2% of TPI to prepare a premix;

[0031] (2) Mix the above-mentioned premix in an internal mixer, the mixing temperature is 90℃, the internal mixer speed is 60r / min, the mixing time is 8min, and then the rubber is discharged to obtain the fiber / TPI masterbatch .

[0032] The obtained fiber / TPI masterbatch is mixed with natural rubber and its matching system to prepare a fiber / rubber composition. The amount of fiber / TPI masterbatch is 18 parts, the amount of natural rubber is 88 parts, and the compounding system...

Embodiment 2

[0034] (1) Blend trans isoprene rubber and chopped carbon fiber in a blender, the ratio of trans isoprene rubber to chopped carbon fiber is 1:1, and the Mooney viscosity of trans isoprene rubber The length of the chopped carbon fiber is 6mm, the stirring temperature is 25℃, the stirring time is 5min, and the stirring speed is 1200r / min. During the stirring process, add naphthenic oil and borate modifiers. The amount of naphthenic oil is 10% of TPI, and the amount of borate modifier is 2% of TPI to prepare a premix;

[0035] (2) Mix the above-mentioned premix in an internal mixer at a temperature of 100°C, a speed of 70r / min, and a mixing time of 6min, and then debinding to obtain fiber / TPI masterbatch .

[0036] The obtained fiber / TPI masterbatch is mixed with natural rubber and its mixing system to prepare a fiber / rubber composition. The amount of fiber / TPI masterbatch is 12 parts, the amount of natural rubber is 94 parts, and the compounding system is the same as in Example 1. ...

Embodiment 3

[0038] (1) Blend trans-isoprene rubber and chopped carbon fiber in a mixer, the ratio of trans-isoprene rubber to chopped carbon fiber is 1:2, and the Mooney viscosity of trans-isoprene rubber The length of chopped carbon fiber is 135, the length of chopped carbon fiber is 6mm, the stirring temperature is 20℃, the stirring time is 6min, the stirring speed is 1350r / min, naphthenic oil and borate modifier are added during the stirring process, the amount of naphthenic oil is 10% of TPI, and the amount of borate modifier is 2% of TPI to prepare a premix;

[0039] (2) Mix the above-mentioned premix in an internal mixer, the mixing temperature is 110℃, the internal mixer speed is 85r / min, the mixing time is 10min, and then the rubber is discharged to obtain the fiber / TPI masterbatch .

[0040] The obtained fiber / TPI masterbatch is mixed with natural rubber and its matching system to prepare a fiber / rubber composite. The amount of fiber / TPI masterbatch is 9 parts, the amount of natural...

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Abstract

The invention relates to fiber / TPI rubber master batch, a preparing method thereof and application of the rubber master batch in rubber compositions. The method includes following steps of: (1) mixing trans-isoprene rubber and fibers, stirring, mixing to obtain a premix material, with the stirring being performed at 30-50 DEG C for 5-9 min at a stirring speed of 900-1500 r / min; and (2) mixing the premix material in an internal mixer at 70-120 DEG C for 5-10 min, with the rotation speed of the internal mixer being 50-90 r / min, and discharging rubber to obtain the fiber / TPI rubber master batch. The prepared fiber / TPI rubber master batch is liable to mix with natural rubber or other synthetic rubber to form fiber / rubber compositions with good performance, and can improve performance of the rubber compositions.

Description

Technical field [0001] The invention relates to the field of fiber / rubber composite material processing, in particular to a fiber / TPI masterbatch and a preparation method thereof and the application of the masterbatch in rubber composites. Background technique [0002] As a high-performance material, fiber has excellent mechanical properties and has become an important reinforcing component in composite materials. It has been widely used in various fields of aerospace, defense and civil industry. [0003] Fiber / TPI masterbatch is a reinforced composite material in which fibers are dispersed in trans-isoprene rubber and compounded with rubber to form a similar polymer blend. The fiber / TPI masterbatch not only has the elasticity of rubber, but also maintains the strength and rigidity of the fiber. Products made with it have high strength, high modulus, tear resistance, swelling resistance and other excellent properties, and can use traditional rubber technology. Processing can reali...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L9/00C08L91/00C08K13/04C08K7/06C08K5/55C08K3/22C08K5/09C08J3/22
CPCC08L7/00C08J3/226C08J2307/00C08J2409/00C08L2205/03C08L9/00C08L91/00C08K13/04C08K7/06C08K5/55C08K2003/2296C08K5/09C08K3/04
Inventor 谢欢欢李海霞陈占勋
Owner QINGDAO TPI NEW MATERIAL
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