Toughening nylon 6 and preparation method thereof

A nylon and toughening technology, applied in the field of toughening nylon 6 and its preparation, can solve the problems of unstable nylon 6 structure and mechanical properties, and achieve the effects of low cost, simple processing equipment and good compatibility

Inactive Publication Date: 2017-09-22
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide toughened nylon 6 and preparation method thereof, to solve the unstable problem of nylon 6 structure and mechanical properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Toughening nylon 6 and preparation method thereof
  • Toughening nylon 6 and preparation method thereof
  • Toughening nylon 6 and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049] Provide a kind of preparation method of toughened nylon 6 below, its step comprises:

[0050] Step 110, placing the set amount of additives in a high-speed mixer, stirring, and vacuum drying;

[0051] When the additive is selected from toughener phosphate compounds, antioxidants, inorganic powders, and UV absorbers, this step can be: a certain proportion of nano-scale inorganic powders, phosphate compounds, antioxidants, and UV absorbers The absorbent is added to a high-speed mixer and stirred at room temperature for 10-30 minutes, and dried in a vacuum oven at 105°C for 10 hours.

[0052] Step 120, adding the vacuum-dried additive and the dried nylon 6 to the screw extruder respectively, melt-blending, and extruding the toughened nylon 6.

[0053] Specifically: Add the additive mixture obtained in step 110 and the dried nylon 6 to the screw extruder through the feeding device for melt blending. °C, 240-250 °C, 240-250 °C, 210-240 °C, 200-240 °C. The screw speed of t...

Embodiment 1

[0057] Stir 1 part of nano-titanium dioxide, 97 parts of pentaerythritol phosphate, 1 part of antioxidant 1010 and 1 part of UV absorber seed in a high-speed mixer for 10 minutes, and dry the mixture in a vacuum oven at 100°C for 3 hours to obtain the additive. Put the dried additives and nylon 6 slices into the feeding screw silos respectively, the addition amount of metered additives is 2%, the addition amount of nylon 6 slices is 98%, and the product PA6-1# is obtained by twin-screw blending.

[0058] 1 serving is 20 grams, the same below.

Embodiment 2

[0060] Stir 1 part of nano-titanium dioxide, 97 parts of pentaerythritol phosphate, 1 part of antioxidant 1010 and 1 part of UV absorber seed in a high-speed mixer for 10 minutes, and dry the mixture in a vacuum oven at 100°C for 3 hours to obtain the additive. Put the dried additive and nylon 6 slices into the feeding screw silos respectively, the addition amount of the metered additive is 5%, and the addition amount of nylon 6 slices is 95%, and the product PA6-2# is obtained by twin-screw blending.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Strengthaaaaaaaaaa
Elastic modulusaaaaaaaaaa
Login to view more

Abstract

The invention relates to the field of nylon modification, in particular to toughening nylon 6 and a preparation method thereof. The toughening nylon 6 is prepared from the raw materials of nylon 6 and an additive, wherein the additive comprises a toughening agent phosphate ester compound. The preparation method comprises the steps of adding a certain amount of additive into a high-speed stirrer, stirring, and carrying out vacuum drying; adding the additive subjected to vacuum drying and dried nylon 6 into a screw extruder, melting and mixing, and squeezing out the nylon 6. The phosphate ester compound and a nylon 6 polymer have good compatibility, molecules can mutually form hydrogen bonds and mutually replace and transform, the phosphate ester compound can be used as the plasticizer of the nylon 6 polymer and the shield agent of the hydrogen bonds between the molecules of the nylon 6 so as to prevent excessively fast crystallization of hydrogen bonds from being formed between the nylon 6 molecules, which is not conducive to fast flow of nylon melt. The toughening nylon 6 is particularly suitable for being applied in high-performance, thin-walled and large products.

Description

technical field [0001] The invention relates to the field of nylon modification, in particular to toughened nylon 6 and a preparation method thereof. Background technique [0002] Nylon 6 has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubricating properties, low friction coefficient, certain flame retardancy, easy processing, suitable for glass fiber It is an important engineering plastic and is widely used in fibers, transmission devices, and structural devices. However, because of its strong hygroscopicity and the induction of the γ crystal form in the sample to the α The crystal transformation leads to the instability of device size, structure and mechanical properties. In order to improve the properties of nylon 6, the preparation method of high-flow toughened nylon 6 is disclosed in existing patents. For example, CN103571182A discloses a high-flow toughened filled nylon and its preparat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L77/02C08K13/02C08K5/521C08K3/22B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08K3/22C08K5/521C08K13/02C08K2003/2241C08K2201/011C08L77/02
Inventor 董振峰王锐朱志国张秀芹王然张文娟
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap