Method for preparing liquid crystal nylon alloy

A nylon and alloy technology, which is applied in the field of preparing liquid crystal nylon alloy, can solve the problems of poor fluidity and dissatisfaction, and achieve the effect of reducing cost, reducing dosage, and good processing stability

Inactive Publication Date: 2011-06-01

KINGFA SCI & TECH CO LTD +2

3 Cites 6 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0003] Although semi-aromatic polyamide has good temperature resistance, it has poor fluidity during processing, and some pr...

Method used

[0042] PA10T is replaced by PA6T, and the others remain unchanged. The prepared liquid crystal nylon alloy has good surface compatibility, heat resistance and melting contact fluidity, good processing stability, and does not corrode molds.

[0044] PA10T is replaced by PA46, and the others remain unchanged. The prepared liquid crystal nylon alloy has good sur...

Abstract

The invention discloses a method for preparing a liquid crystal nylon alloy. The method comprises the following steps: grinding liquid crystal oligomer and high temperature nylon oligomer, adding in a reactive screw extruder, adding a compatilizer, reacting, performing extrusion, pelletizing and tackifying solid aggregate to ensure that the relative viscosity is 2.0-3.0. By adopting the preparation method in the invention, the dosage of liquid crystals is reduced and the cost is lowered. In addition, as the compatilizer is used in the preparation method, the prepared liquid crystal nylon alloy has good surface compatibility, heat resistance, melt liquidity and processing stability and can not corrode moulds.

Technology Topic

Nylon oligomerLiquid crystal +5

Examples

Experimental program(6)
Comparison scheme(3)

Example Embodiment

[0021] Example 1:

[0022] After crushing 8.5kg of liquid crystal oligomer and 1.5kg of high temperature nylon oligomer, add them to the reactive screw, add 100g of trimesic acid, react for 3 hours, extrude and cut into pellets, increase the viscosity of the pellets in solid phase for 10 hours, and complete reaction.

Example Embodiment

[0023] Example 2:

[0024] After crushing 5.0kg of liquid crystal oligomer and 5.0kg of high temperature nylon oligomer, add them to the reactive screw, add 100g of trimesic acid, react for 3 hours, extrude and cut into pellets, increase the viscosity of the pellets in solid phase for 16 hours, and complete reaction.

Example Embodiment

[0025] Embodiment 3:

[0026] After crushing 1.5kg of liquid crystal oligomer and 8.5kg of high temperature nylon oligomer, add them to the reactive screw, add 100g of trimesic acid, react for 3 hours, extrude and cut into pellets, increase the viscosity of the pellets in solid phase for 12 hours, and complete reaction.

[0027] The properties of Examples 1-3 are shown in Table 1.

[0028] Table 1

[0029] Example

[0030] It can be seen from Table 1 that the appearance is uniform and there is no phase separation.

PUM

Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

reduce dosage
low cost

Method for preparing liquid crystal nylon alloy

A nylon and alloy technology, which is applied in the field of preparing liquid crystal nylon alloy, can solve the problems of poor fluidity and dissatisfaction, and achieve the effect of reducing cost, reducing dosage, and good processing stability

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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