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Nylon slice continuous solid-phase tackifying system and treatment method

A technology of nylon slices and solid-phase thickening, which is applied in separation methods, chemical instruments and methods, and dispersed particle filtration, etc. It can solve problems such as limiting the scope of application, and achieve the effects of reducing volume, energy consumption, and cooling capacity

Pending Publication Date: 2021-08-13
山东奥诺能源科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After conventional polymerization, low-viscosity nylon 6 chips (viscosity 2.2-3.0) are obtained, and nylon 66 has a lower viscosity than nylon 6, which limits its application range

Method used

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  • Nylon slice continuous solid-phase tackifying system and treatment method
  • Nylon slice continuous solid-phase tackifying system and treatment method
  • Nylon slice continuous solid-phase tackifying system and treatment method

Examples

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Embodiment Construction

[0097] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0098] like Figure 1-3 As shown in , the continuous solid-phase thickening system for nylon slices comprises a feeding system 10, a thickening tower 8, a nitrogen circulation system, and a cooling tower 9, and the downstream of the feeding system 10 is connected with the thickening tower 8, so that The nitrogen circulation system is connected to the inside of the thickening tower 8 and is used to deliver nitrogen to the inside of the thickening tower 8, and the thickening tower 8 is used to carry out continuous thickening treatment on the nylon slices entering its interior, The cooling tower 9 is connected downst...

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PUM

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Abstract

The invention relates to the technical field of polyamide production, in particular to a nylon slice continuous solid-phase tackifying system which comprises a feeding system, a tackifying tower, an upper bulk material nitrogen feeding device and a cooling tower. The upper bulk material nitrogen feeding device is connected with the interior of the tackifying tower and used for conveying nitrogen into the tackifying tower, and the tackifying tower is used for conducting continuous tackifying treatment on nylon slices entering the tackifying tower. And the cooling tower is connected to the downstream of the tackifying tower and is used for cooling the tackified nylon slices. According to the system and the treatment method, the reaction temperature in the tackifying tower is controlled to be low, the heating temperature of the nylon slices is higher than the glass transition temperature and lower than the melting point, and side reactions such as degradation do not exist; and the molecular weight of the polymer can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of polyamide production, in particular to a continuous solid-phase thickening system and a treatment method for nylon slices. Background technique [0002] As one of the five major engineering plastics, nylon has high tensile strength, large elastic modulus, excellent wear resistance and self-lubricating properties, and is widely used in automobile manufacturing, electronic appliances, mechanical equipment and packaging industries. There are many varieties of nylon, including nylon 6, nylon 66, nylon 11, nylon 12, nylon 46, nylon 610, nylon 612, nylon 1010, etc., as well as new products such as semi-aromatic nylon 6T and special nylon developed in recent years. Among them, nylon 6 and nylon 66 have the largest output, accounting for more than 90% of nylon output. [0003] Industrial nylon requires higher relative strength and higher relative viscosity. After conventional polymerization, low-viscosity nylon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01D53/14B01D46/10C08G69/04C08G69/06C08G69/28C08G69/30
CPCB01D46/10B01D53/1412B01D53/18C08G69/04C08G69/06C08G69/28C08G69/30
Inventor 徐以昌韩静张立峰辛建建张伟马风军张鹏张志刚支安东张燕斌张积玉
Owner 山东奥诺能源科技股份有限公司