Preparation method of high-strength regenerated rubber

A reclaimed rubber, high-strength technology, used in building components, building insulation materials, construction, etc., can solve the problems of poor reclaimed rubber performance, complex reclaimed rubber process, harsh conditions, etc., to achieve low cost, good wear resistance and The effect of stability and strength improvement

Inactive Publication Date: 2018-05-15
江苏华兴橡胶科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem: the technical problem to be solved by the present invention is to provide a high-strength regenerated rubber preparation method for the prior art in which the production process of regenerated rubber is complicated, the operation is cumbersome, the conditions are harsh, and the performance of the regenerated rubber obtained is not good. The operation is simple, the production efficiency is high, and the regenerated rubber produced has better strength and good tensile properties, which can meet the industrial demand for high-quality raw materials

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

[0019] Embodiment 1: prepare regenerated rubber according to the following steps:

[0020] Step 1, weigh 1.7kg of coal tar, 0.03kg of 2,2'-thiobis(4-methyl-6-tert-butylphenol), 0.02kg of rosin, 0.04kg of stearic acid, and 0.01kg of water, and add them to Heat and mix in a mixing mixer, stir at 80-100°C for 30-40 minutes to obtain material A, and keep the temperature of material A at 80-100°C;

[0021] Step 2, take by weighing 10kg of waste tire rubber powder, 0.06kg of titanium oxide, and 0.07kg of magnesium hydroxide, and add them to a double-helix stirrer, fully stir, and mix evenly;

[0022] Step 3, under stirring, add the material A obtained in Step 1 to the double-helix agitator in Step 2, keep the temperature in the system at 250-280°C, stir and mix thoroughly, extrude and knead to obtain desulfurized rubber powder;

[0023] Step 4, molding the desulfurized rubber powder through a refiner to obtain block-shaped regenerated rubber.

Embodiment 2

[0024] Embodiment 2: prepare regenerated rubber according to the following steps:

[0025] Step 1, weigh 2.2kg of coal tar, 0.06kg of 2,2'-thiobis(4-methyl-6-tert-butylphenol), 0.06kg of rosin, 0.07kg of stearic acid, and 0.03kg of water, and add them to Heat and mix in a mixing mixer, stir at 80-100°C for 30-40 minutes to obtain material A, and keep the temperature of material A at 80-100°C;

[0026] Step 2, take by weighing 10kg of waste steel wire tire rubber powder, 0.09kg of nano-titanium oxide, and 0.1kg of magnesium hydroxide, and add them to a double-helix stirrer, fully stir, and mix evenly;

[0027] Step 3, under stirring, add the material A obtained in Step 1 to the double-helix mixer in Step 2, keep the temperature in the system at 260-270°C, fully stir and mix, extrude and knead to obtain desulfurized rubber powder;

[0028] Step 4, molding the desulfurized rubber powder through a refiner to obtain block-shaped regenerated rubber.

Embodiment 3

[0029] Embodiment 3: prepare regenerated rubber according to the following steps:

[0030] Step 1, weigh 1.8kg of coal tar, 0.04kg of 2,2'-thiobis(4-methyl-6-tert-butylphenol), 0.03kg of rosin, 0.05kg of stearic acid, and 0.02kg of water, and add them to Heat and mix in a mixing mixer, stir at 80-100°C for 30-40 minutes to obtain material A, and keep the temperature of material A at 80-100°C;

[0031] Step 2, take by weighing 10kg of waste tire rubber powder, 0.07kg of titanium oxide, and 0.08kg of magnesium hydroxide, and add them to a double-helix stirrer, fully stir, and mix evenly;

[0032] Step 3, under stirring, add the material A obtained in Step 1 to the double-helix mixer in Step 2, keep the temperature in the system at 260-270°C, fully stir and mix, extrude and knead to obtain desulfurized rubber powder;

[0033] Step 4, molding the desulfurized rubber powder through a refiner to obtain block-shaped regenerated rubber.

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

No PUM Login to view more

Abstract

The invention discloses a preparation method of high-strength regenerated rubber, which includes the steps of: 1) adding coal tar, an activator, rosin, stearic acid and water to a mixing stirrer to heat and mix the components to prepare a material A; 2) adding waste rubber powder, titanium oxide and magnesium hydroxide to a twin-screw stirrer and uniformly mixing the components; 3) under stirring,adding the material A into the twin-screw stirrer, maintaining the temperature of the system at 250-280 DEG C and completely stirring and mixing the components, and extruding and rubbing the mixtureto obtain desulfurized rubber powder; 4) molding the desulfurized rubber powder with a refining machine. The preparation method is simple, low in cost, high in efficiency and low in energy consumptionand environment pollution. The regenerated rubber is high in strength and good in stability and has extensive market prospect.

Description

technical field [0001] The invention relates to a method for preparing rubber, in particular to a method for preparing high-strength recycled rubber. Background technique [0002] At present, millions of tons of waste rubber are produced every year in the world, and the amount is so huge that how to effectively deal with it has become a common concern of the whole society. For this reason, in addition to incinerating piles of waste rubber products as fuel, since 1910, scientists from various countries have been researching more effective waste rubber recycling technologies. Reclaimed rubber refers to waste vulcanized rubber that undergoes physical and chemical processes such as crushing, heating, and mechanical treatment to change it from an elastic state to a plastic and viscous rubber that can be re-vulcanized. The essence of the regeneration process is to destroy and degrade the vulcanized rubber network under the combined effects of heat, oxygen, mechanical action, and ...

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 Applications(China)
IPC IPC(8): C08L17/00C08L19/00C08L95/00C08L93/04C08K13/02C08K5/09C08K3/22
CPCC08L17/00C08K2003/2224C08K2003/2241C08K2201/011C08L2205/03C08L2207/24C08L19/003C08L95/00C08L93/04C08K13/02C08K5/09C08K3/22
Inventor 陈立奇
Owner 江苏华兴橡胶科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap