Reaction kettle for polybenzimidazole fusion synthesis

A technology of polybenzimidazole and reaction chamber, applied in chemical/physical/physicochemical fixed reactors, chemical instruments and methods, feeding devices, etc., can solve problems of low controllability, incomplete foaming, and incomplete Complete and other problems, to achieve the effect of improving the uniformity of polymerization, uniform powder, and simple equipment manufacturing process

Inactive Publication Date: 2014-05-07
BEIJING ZHONGJU TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the solution polymerization method, nucleophilic substitution method, and parent method have low controll

Method used

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  • Reaction kettle for polybenzimidazole fusion synthesis
  • Reaction kettle for polybenzimidazole fusion synthesis
  • Reaction kettle for polybenzimidazole fusion synthesis

Examples

Experimental program
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Embodiment Construction

[0017] The reactor structural diagram of preparing PBI by melt polymerization method of the present invention is as follows figure 1 As mentioned above, the cross-sectional view in the X direction and the cross-sectional view in the Y direction are respectively as follows figure 2 with image 3 Described, it is characterized in that: the reaction still of preparing PBI is made of reaction chamber (1), stirring device (2), loam cake support (3), turning arm (4), power interface (5), control interface (6), And support (7) is formed. The structural block diagram of the electrical control system of the reactor is as follows: Figure 4 As shown, it is characterized in that: the total control module (8) is connected with three analog-to-digital conversion modules (81), (82), (83), and is connected with the input module (84), the power supply module (85) and the current control module (86) connected.

[0018] Generally, the reaction chamber (1) provides the required space and te...

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Abstract

The invention belongs to the field of reaction kettles and in particular relates to an automatic reaction kettle for polybenzimidazole fusion synthesis. The invention provides an automatic reaction kettle for preparing PBI (protein-bound iodine) by a fusion polymerization method. Aiming at an industrial PBI synthesis process, the invention designs devices for stirring, temperature control and the like, so that large-scale production of PBI powder can be realized. The automatic reaction kettle has the advantages that (1) materials are easy to feed and take, and feeding of raw materials and taking out of products are realized through turning of the reaction kettle; (2) a stirring system is arranged in the reaction kettle, thereby improving the polymerization uniformity; (3) due to multi-point temperature measurement and fitting, powder is mixed uniformly; (4) process-type temperature control does not need manual management; (5) equipment is easy to manufacture and high in safety; therefore, the automatic reaction kettle is expected to lay an equipment foundation for the industrial production of the PBI powder.

Description

technical field [0001] The invention belongs to the field of reaction kettles, in particular to a reaction kettle suitable for industrial mass production of polybenzimidazole. Background technique [0002] Polybenzimidazole (PBI, Polybenzimidazole) is currently the special engineering plastic with the highest applicable temperature, and is also known as the highest grade engineering plastic. The transformation temperature reaches 427°C, and the instantaneous withstand temperature is as high as 760°C, and it will not burn at any temperature; (2) High strength, high hardness, low density, good deformation resistance, low hysteresis loss and high elastic recovery Features, PBI can be pressed to more than 50% of the deformation without breaking, it is the product with the highest strength among engineering plastics, and it is easy to be machined, its hardness is 1 / 2 of glass, and its density is less than 1 / 5 of steel; ( 3) High comfort, the moisture absorption rate of PBI fiber...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01J4/00C08G73/18
Inventor 漆奇瞿翔宇
Owner BEIJING ZHONGJU TECH
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