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Lightweight rubber composite material and preparation method thereof

A technology of composite materials and rubber composites, which is applied in the field of light rubber composite materials and the preparation of lightweight rubber composite materials. To meet the standard requirements and other issues, to achieve the effect of physical performance improvement, light tensile strength, and strong tensile strength

Active Publication Date: 2020-03-17
GREENOVO RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing melt blending technology is to mix the polymer materials and perform melt blending processing in a melt blending manner. However, the physical properties of the manufactured rubber composite materials (such as specific gravity, tensile strength, elongation at break, etc.) and tear strength) cannot meet the standard requirements at the same time

Method used

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  • Lightweight rubber composite material and preparation method thereof
  • Lightweight rubber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Preparation of lightweight rubber composite material particles (sample 1)

[0028] Styrene and butadiene were mixed in a twin-screw extruder at a weight ratio of 43:57, melt-mixed at a speed of 350 rpm, and a temperature gradient from 175°C to 220°C and then cooled to 195°C. A thermoplastic elastic rubber compound is formed. In a specific embodiment, the thermoplastic elastic rubber compound is pelletized by using a water-cooled pelletizer to form a thermoplastic elastic rubber compound particle.

[0029] Mix ethylene and vinyl acetate in a 10,000-horsepower kneader at a weight ratio of 75:25 to form a polyalkene compound. The polyalkene compound is mixed at a speed of 180 rpm and a temperature of 175°C Melt mixing was carried out for 15 minutes to form a polyalkene compound. In a specific embodiment, an air-cooled pelletizer is used for pelletizing to form a polyalkene compound pellet.

[0030] Mix SEBS and white oil at a weight ratio of 1:1 to form an...

Embodiment 2

[0031] Embodiment 2: Preparation of lightweight rubber composite material particles (sample 2)

[0032] Styrene and butadiene were mixed in a twin-screw extruder at a weight ratio of 49:51, melt-mixed at a speed of 350 rpm, and a temperature gradient from 175°C to 220°C and then cooled to 195°C. Form thermoplastic elastic rubber compound. In a specific embodiment, pelletizing is performed by using a water-cooled pelletizer to form thermoplastic elastic rubber compound pellets.

[0033] Mix ethylene and vinyl acetate in a 10,000-horsepower kneader at a weight ratio of 80:20, and melt-mix at a speed of 180 rpm and a temperature of 175°C for 15 minutes to form a polyalkene compound. In a specific embodiment, an air-cooled pelletizer is used for pelletizing to form polyalkene composite pellets.

[0034] The thermoplastic elastic rubber compound, polyolefin ester compound and AC1 were mixed in a twin-screw extruder at a weight ratio of 10:3:2, and the temperature was raised from ...

Embodiment 3

[0035] Example 3: Lightweight Rubber Composite Particles (Sample 3)

[0036] After preparing the thermoplastic elastic rubber compound and the polyalkenyl ester compound respectively according to the method described in Example 1, SEBS and white oil are mixed with a weight ratio of 1:2 to form an additive composition (AC2), and then the Thermoplastic elastic rubber compound, polyvinyl ester compound and AC2 are mixed in a twin-screw extruder at a weight ratio of 9:1:2, and the temperature is raised from 180°C to 210°C with a temperature gradient of 300 rpm and then cooled Melt mixing to 170°C to form a lightweight rubber compound. In a specific embodiment, the lightweight rubber composite material can be pelletized by using a water-cooled pelletizer to form a lightweight rubber composite material particle (sample 3).

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Abstract

The invention relates to a lightweight rubber composite material and a preparation method thereof. The preparation method comprises the following steps: preparing a thermoplastic elastic rubber compound and a polyalkenylester compound, wherein the thermoplastic elastic rubber compound is obtained through mixing at 150-220 DEG C, and the polyalkenylester compound is obtained through mixing at 130-190 DEG C; and the thermoplastic elastic rubber compound and the polyalkenylester compound are mixed at 150-210 DEG C to obtain the lightweight rubber composite material. The rubber composite material prepared through the preparation method has the advantages of improved uniformity, light weight, improved tensile strength, improved elongation at break, and improved tearing strength, and solves the problem of unable combination of light weight and physical performances of rubber composite materials in the prior art.

Description

technical field [0001] The invention relates to a method for preparing a rubber composite material, in particular to a method for preparing a lightweight rubber composite material; the invention also relates to a lightweight rubber composite material. Background technique [0002] In the manufacturing industry of traditional rubber composite materials, based on the consideration of mature technology and easy processing, most of the development of rubber composite materials is carried out by using melt blending technology, commonly known as hot melt mixing or mixing technology. , and by means of equipment with torsion melt mixing, such as a kneader, single or twin screw extruder, etc., to mix different polymer materials and make them mix in a molten state. [0003] However, the existing melt blending technology is to mix the polymer materials and perform melt blending processing in a melt blending manner. However, the physical properties of the manufactured rubber composite m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L23/08C08L91/06B29B7/00
Inventor 高永康林鸿明
Owner GREENOVO RES