Natural latex jet-flow solidification method

A technology of natural latex and jet flow, which is applied in the field of natural latex coagulation production, can solve the problems of long production cycle, high production cost, and large environmental pollution, and achieve the effects of increasing production profits, reducing applications and emissions, and reducing production costs

Inactive Publication Date: 2013-09-04
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the embodiments of the present invention is to provide a natural rubber latex jet coagulation method, aiming to solve the problems of high production cost, long production cycle and large environmental pollution of the existing acid coagulation method for coagulating natural gel

Method used

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  • Natural latex jet-flow solidification method
  • Natural latex jet-flow solidification method
  • Natural latex jet-flow solidification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The natural rubber latex with a concentration of 40%, an ammonia content of 0.05% and a temperature of 80°C is pumped into the pressure device. The pressure of the natural rubber latex is 1Mpa, and the switch valve is opened to allow the natural latex to flow into the air through a jet port of 0.1 mm. The gasification chamber (the pressure of the gasification chamber is atmospheric pressure) is gasified to form natural rubber wet particles of 0.03-0.08mm.

[0046] The wet particles are collected and dried in a drying equipment at a temperature of 120°C for 70 minutes to obtain natural rubber raw rubber.

[0047] The physical and chemical properties of natural rubber raw rubber are shown in Table 1.

[0048] The physical and chemical properties of table 1 natural rubber

[0049]

[0050] It can be seen from Table 1 that the physical and chemical properties of the prepared natural rubber raw rubber meet the index requirements of the national standard GB / T8081-2008SCR5...

Embodiment 2

[0052] Concentration is 10%, ammonia content is 0.15% and the natural rubber latex that temperature is 70 ℃, in the pressure device with pump input, the pressure of natural rubber latex is 2Mpa, then the switch valve of continuous pressure device and injection port is opened, makes natural rubber latex It flows into the gasification chamber through a jet port of 0.15 mm (the vacuum degree of the gasification chamber is 0.08Mpa). Gasified to form natural rubber wet particles of 0.05-0.1 mm.

[0053] The wet particles are collected and dried in a drying equipment at a temperature of 120°C for 70 minutes to obtain natural rubber raw rubber.

[0054] The physical and chemical properties of natural rubber raw rubber are shown in Table 2.

[0055] Table 2 Physical and chemical properties of natural rubber

[0056]

[0057] It can be seen from Table 2 that the physical and chemical properties of the prepared natural rubber raw rubber meet the index requirements of the national s...

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Abstract

The invention discloses a natural latex jet-flow solidification method which comprises the following steps of: pressurizing the natural latex by using a pressure pump, putting the natural latex into a pressure instrument to be stored up, jetting the natural latex into a gasifying chamber through a jet-flow port under the action of pressure, so as to form natural latex microdroplets; and gasifying the natural latex microdroplets under the action of pressure difference and temperature difference so as to form natural latex solidified grains. The natural latex jet-flow solidification method provided by the invention overcomes the defects that the acid solidification in the conventional production is high in production cost, long in production period, large in environmental pollution and large in body damage to operators, the production cost is greatly lowered, the application and the emission of harmful pollutants are reduced, the production period is shortened, and at the same time the production profits of enterprises are increased, so that the natural latex jet-flow solidification method is non-pollution environment-friendly production, meets the environment-friendly production concept which is proposed by China, and has wide application prospect in future.

Description

technical field [0001] The invention belongs to the field of natural latex coagulation production, and in particular relates to a jet coagulation method of natural latex. Background technique [0002] Natural rubber latex is a natural polymer emulsion synthesized by natural rubber trees through a series of biological processes such as photosynthesis. Natural rubber latex can be collected by tapping rubber on natural rubber trees. Natural latex can be processed into solid natural rubber through processes such as preservation, coagulation, dehydration, granulation and drying of natural latex. [0003] The coagulation process of natural latex is an important link in the production of natural rubber. [0004] Now, acid coagulation is often used in the production of solid natural rubber. Acid coagulation is to add acid substances such as acetic acid, formic acid, sulfuric acid and hydrochloric acid to the natural latex to increase the concentration of hydrogen ions in the natur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/14
Inventor 符新郇志博符思嘉符哲宁高丽花孙玉倩符剑王琴
Owner HAINAN UNIVERSITY
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