Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of non-polluting non-oil-extended styrene-butadiene rubber

A technology of styrene and butadiene, which is applied in the field of preparation of non-polluting non-oil-extended styrene-butadiene rubber, and can solve problems such as insufficient performance

Inactive Publication Date: 2016-09-21
HANGZHOU ZHECHEN RUBBER
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some of the performance of the product is relatively insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Embodiment 1: a kind of preparation method of non-pollution type non-oil-extended styrene-butadiene rubber, carry out according to the following steps:

[0071] (1) Preparation by blending butadiene:

[0072] Store fresh butadiene in a spherical tank, the storage pressure of which is ≤0.36MPa, and the storage temperature is controlled by an ammonia-cooled heat exchanger to be ≤18°C. After alkali washing, it is mixed with recovered butadiene to prepare butadiene , the purity of blended butadiene is controlled to be 91.0%, and the TBC content is ≤10ppm, to be used for polymerization; the purity of recovered butadiene is ≥78.0%

[0073] During alkali washing: butadiene: 10% NaOH solution = 1 part: 1.2 parts, mixed through the pipeline, and the lye is recycled;

[0074] (2) Preparation by blending styrene:

[0075] Fresh styrene is stored in a storage tank, and the storage temperature is controlled by an ammonia-cooled heat exchanger to ≤18°C. Fresh styrene and recycled s...

Embodiment 2

[0133] Embodiment 2: a kind of preparation method of non-pollution type non-oil-extended styrene-butadiene rubber, carry out according to the following steps:

[0134] (1) Preparation by blending butadiene:

[0135] Store fresh butadiene in a spherical tank, the storage pressure of which is ≤0.36MPa, and the storage temperature is controlled by an ammonia-cooled heat exchanger to be ≤18°C. After alkali washing, it is mixed with recovered butadiene to prepare butadiene , the purity of blended butadiene is controlled to be 95.0%, and the TBC content is ≤10ppm, to be used for polymerization; the purity of recovered butadiene is ≥78.0%

[0136] During alkali washing: butadiene: 10% NaOH solution = 1 part: 1.4 parts, mixed through the pipeline, and the lye is recycled;

[0137] (2) Preparation by blending styrene:

[0138] Fresh styrene is stored in a storage tank, and the storage temperature is controlled by an ammonia-cooled heat exchanger to ≤18°C. Fresh styrene and recycled s...

Embodiment 3

[0196] Embodiment 3: a kind of preparation method of non-pollution type non-oil-extended styrene-butadiene rubber, carry out according to the following steps:

[0197] (1) Preparation by blending butadiene:

[0198] Store fresh butadiene in a spherical tank, the storage pressure of which is ≤0.36MPa, and the storage temperature is controlled by an ammonia-cooled heat exchanger to be ≤18°C. After alkali washing, it is mixed with recovered butadiene to prepare butadiene , the purity of blended butadiene is controlled to be 97.0%, and the content of TBC is ≤10ppm, to be used for polymerization; the purity of recovered butadiene is ≥78.0%

[0199] During alkali washing: butadiene: 10% NaOH solution = 1 part: 1.5 parts, mixed through the pipeline, and the lye is recycled;

[0200] (2) Preparation by blending styrene:

[0201] Fresh styrene is stored in a storage tank, and the storage temperature is controlled by an ammonia-cooled heat exchanger to ≤18°C. Fresh styrene and recycle...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to a rubber preparation method, and especially relates to a non-contamination-type non-oil-charge type styrene-butadiene rubber preparation method. The method comprises the following steps: blending butadiene to prepare, blending styrene to prepare, preparing soap liquid, preparing an activator, preparing a deoxygenation agent, preparing a terminator, preparing an oxidizing agent and a conditioning agent, performing polymerization, recovering an unreacted monomer, recovering unreacted butadiene, recovering unreacted styrene, preparing an environment-friendly type antioxidant, preparing a sulfuration promoter, preparing mother liquor, condensing, washing, dehydrating, drying, briquetting, detecting and packaging. The provided preparation method of the non-contamination-type non-oil-charge type styrene-butadiene rubber can optimize the usage performance, and the product adaptability is high.

Description

technical field [0001] The invention relates to a method for preparing rubber, in particular to a method for preparing non-polluting non-oil-extended styrene-butadiene rubber. Background technique [0002] The production of emulsion polymerized styrene-butadiene rubber began in Germany, and achieved rapid development in the United States. Before the end of World War II, both Germany and the United States adopted Buna-S technology to produce styrene-butadiene rubber by thermal emulsion polymerization. After the end of the war, the United States first adopted the process of cold emulsion polymerization of styrene-butadiene rubber, using a redox initiation system as the polymerization formula. Emulsion polymerized styrene-butadiene rubber in other countries developed relatively late, and industrial production was only realized after the 1950s. It is a breakthrough in the polymerization process of producing emulsion polystyrene butadiene rubber from the thermal polymerization o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F236/10C08F6/16C08C1/14C08L9/06
Inventor 包春斌
Owner HANGZHOU ZHECHEN RUBBER