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Solidification method of natural latex

A technology of natural latex and latex, applied in the field of primary processing of natural rubber, can solve the problems of low degree of automation, low utilization rate of resources, long time-consuming for coagulation, etc., and achieves the effect of high degree of automation, improving economic efficiency of enterprises, and maintaining the health of workers

Inactive Publication Date: 2020-06-05
HAINAN MEDICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Therefore, in order to solve the shortcomings of large floor area, long time-consuming coagulation, poor coagulation quality, low resource utilization rate, large environmental pollution, and low degree of automation in the coagulation processing of natural rubber latex, the present invention provides a brand-new, automatic degree High physical coagulation method of natural latex

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of coagulation process method of the natural rubber latex of the present embodiment, comprises the following steps:

[0031] (1) The fresh latex that is sent into the processing plant is filtered through a sieve, and the scum and sludge in the latex are separated by precipitation to obtain pretreated latex, which is stored in the feed barrel;

[0032] (2) The pretreated latex stored in the feed barrel is pumped by the diaphragm pump and sent to the colloid mill (the distance between the rotor and the stator is adjustable from 0.01 to 2mm, and the example is 0.05mm). The colloid mill enters the latex in turn under the high-speed rotation of the motor. High-shear crushing zone, strong grinding zone, high-frequency emulsification zone, and finally extrude from the curved channel (0.3mm-0.6mm adjustable, this example is 0.3mm) to form condensate emulsion;

[0033] (3) Latex condensate emulsion and coagulant are mixed and contacted with mist coagulant in the atomized ...

Embodiment 2

[0036] A kind of coagulation process method of the natural rubber latex of the present embodiment, comprises the following steps:

[0037] (1) The fresh latex that is sent into the processing plant is filtered through a sieve, and the scum and sludge in the latex are separated by precipitation to obtain pretreated latex, which is stored in the feed barrel;

[0038] (2) The pretreated latex stored in the feed barrel passes through the gas-liquid high-efficiency mixing pump (the difference between the gas-liquid high-efficiency mixing pump and the colloid mill is that the gas-liquid high-efficiency mixing pump has a similar structure and working principle to the colloid mill, and increases Self-absorbing, bubble grinding, bubble tearing and other functions, the minimum fineness of the bubbles can reach 0.01mm), during the pulverization and grinding process of the gas-liquid high-efficiency mixing pump pipeline, the fluid latex material passes through a shear zone, a three-stage g...

Embodiment 3

[0043] A kind of coagulation process method of the natural rubber latex of the present embodiment, comprises the following steps:

[0044] (1) The fresh latex that is sent into the processing plant is filtered through a sieve, and the scum and sludge in the latex are separated by precipitation to obtain pretreated latex, which is stored in the feed barrel;

[0045] (2) The pretreated latex stored in the feeding barrel is pumped by the diaphragm pump and sent to the colloid mill (the distance between the rotor and the stator is adjustable from 0.01 to 2mm, and the example is 0.06mm), and the colloid mill enters the latex in turn under the high-speed rotation of the motor High-shear crushing zone, strong grinding zone, high-frequency emulsification zone, and finally extrude from the curved channel (0.3mm-0.6mm adjustable, this example is 0.6mm) to form condensate emulsion;

[0046] (3) Latex condensate emulsion and coagulant are mixed and contacted with mist coagulant in the ato...

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Abstract

The invention discloses a solidification method of natural latex. After collected natural latex is subjected to centrifugal filtration, precipitation and impurity removal pretreatment, latex vacuolesare broken through vacuoles generated by high-pressure shearing, friction and turbulence force of a colloid mill and under the cell wall breaking action to release cohesive intermiscible substances, and colloidal particles are promoted to solidify through pressure spraying and addition of a trace amount of coagulant aids. The solidification method has the characteristics of short colloidal particle solidification time, good solidification quality (rapid and uniform atomization contact reaction), improved raw rubber performance, high efficiency, energy saving, space saving, high resource utilization rate, less waste discharge, high automation degree, environmental protection and the like.

Description

technical field [0001] The invention relates to the technical field of primary processing of natural rubber, in particular to a coagulation method of natural rubber latex. Background technique [0002] Natural rubber (NR) is an important industrial raw material. It is a natural biosynthetic polymer with complex components, except for 25% of rubber hydrocarbons and 5% of non-rubber components (protein, fatty acid, ash, sugar, etc.) category), the rest is mainly moisture. Natural latex must go through coagulation, thinning and creping, granulation, drying and other process steps before it can be made into standard natural rubber. Therefore, the coagulation of natural latex has also become one of the important links affecting the quality of natural rubber. [0003] The coagulation of latex refers to the process of destroying the stability of latex under certain conditions. The fresh latex just discharged from the rubber tree, because the pH value is higher than the isoelectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08C1/14C08C1/15
CPCC08C1/14C08C1/15
Inventor 唐天乐
Owner HAINAN MEDICAL COLLEGE
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