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High-temperature-resistant super-toughness nylon material and preparation method thereof

A technology of high temperature resistance and nylon, which is applied in the field of high temperature resistant super tough nylon materials and its preparation, can solve the problems of difficulty in adapting to actual needs, high temperature resistance, poor toughness, flame retardancy and cold resistance, and achieve excellent notched impact strength and improved Effects of cold resistance and high flame retardancy

Pending Publication Date: 2022-05-06
粟品(厦门)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high temperature resistant super tough nylon material and its preparation method, which has the advantages of high temperature resistance, toughness, flame retardancy and cold resistance, and solves the problems of existing nylon materials in high temperature resistance, toughness, flame retardancy And cold resistance is poor, it is difficult to apply to the actual demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] Its preparation method comprises the following steps:

[0047] Step 1. Drying:

[0048] Take 50-80 parts of nylon resin, 4-8 parts of lubricant, 3-6 parts of antioxidant, 13-15 parts of modified nano mica powder, 1-3 parts of heat stabilizer, 18-20 parts of toughening agent, Add 3-4 parts of auxiliary toughening agent, 3-5 parts of cold-resistant agent, 8-10 parts of nano wollastonite powder, 32-40 parts of glass fiber, 16-23 parts of flame retardant and 2-4 parts of heat-resistant agent into 100 Bake in a drying oven at -105°C for 2.5 hours;

[0049] Step 2. Mixing:

[0050] Mix the raw materials dried in step 1 with ethanol aqueous solution, adjust the pH value to 4-5 with hydrochloric acid, put it into a high-speed mixer at a speed of 90-110r / min, and a temperature of 35-65°C Stir evenly for 25 minutes;

[0051] Step three, refining:

[0052] Put the mixed material in step 2 into the twin-screw extruder to melt, mix and homogenize, and then form a strip through ...

Embodiment 1

[0054] First, take 50-80 parts of nylon resin, 4-8 parts of lubricant, 3-6 parts of antioxidant, 13-15 parts of modified nano mica powder, 1-3 parts of heat stabilizer, and 18-20 parts of toughening agent , 3-4 parts of auxiliary toughening agent, 3-5 parts of cold-resistant agent, 8-10 parts of nano wollastonite powder, 32-40 parts of glass fiber, 16-23 parts of flame retardant and 2-4 parts of heat-resistant agent Dry in a drying oven at 100-105°C for 2.5 hours; then mix the raw materials dried in the above steps with aqueous ethanol, adjust the pH value to 4-5 with hydrochloric acid, and put it into a high-speed mixer at a speed of 90-110r / min, uniformly stirred for 25min at a temperature of 35-65°C; then put the mixed materials in the above steps into the twin-screw extruder to melt, mix and homogenize, and pass through the wire outlet plate connected to the machine head The strips are formed, pulled and stretched, and then sent to the granulator for granulation after bei...

Embodiment 2

[0056] In embodiment one, add following operation:

[0057] In step 2, the lubricant is calcium stearate and magnesium stearate mixed according to the mass ratio of 1.5:1.7, and the antioxidant is composed of hindered phenolic antioxidant and phosphite antioxidant with a mass ratio of 4:2 composition.

[0058] First, take 50-80 parts of nylon resin, 4-8 parts of lubricant, 3-6 parts of antioxidant, 13-15 parts of modified nano mica powder, 1-3 parts of heat stabilizer, and 18-20 parts of toughening agent , 3-4 parts of auxiliary toughening agent, 3-5 parts of cold-resistant agent, 8-10 parts of nano wollastonite powder, 32-40 parts of glass fiber, 16-23 parts of flame retardant and 2-4 parts of heat-resistant agent Dry in a drying oven at 100-105°C for 2.5 hours; then mix the raw materials dried in the above steps with aqueous ethanol, adjust the pH value to 4-5 with hydrochloric acid, and put it into a high-speed mixer at a speed of 90-110r / min, uniformly stirred for 25min...

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Abstract

The invention discloses a high-temperature-resistant super-tough nylon material and a preparation method thereof. The high-temperature-resistant super-tough nylon material comprises the following components in parts by weight: 50-80 parts of nylon resin, 4-8 parts of a lubricant, 3-6 parts of an antioxidant and 13-15 parts of modified nano mica powder. Through the modified nano mica powder and the nano wollastonite powder, the high temperature resistance and toughness of the nylon material are effectively improved, the specific antioxidant and lubricant combination is used, the prepared nylon material can keep high flame retardance and high strength, the nylon material is reinforced through the glass fibers, and the service life of the nylon material is prolonged. One of maleic anhydride grafted PE, POE grafted glycidyl methacrylate, HD maleic anhydride grafted PE and POE grafted maleic anhydride is adopted as a main toughening agent, and an auxiliary toughening agent is further added, so that the nylon material has excellent comprehensive mechanical properties such as bending modulus, bending strength and notch impact strength; the cold resistance of the nylon material is further improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-temperature-resistant super-tough nylon material and a preparation method thereof. Background technique [0002] Polyamide is the general term for polymers containing amide groups in the main chain, commonly known as nylon, or PA for short. There are many varieties of nylon (PA), including nylon PA6, nylon PA66, nylon PA1010, nylon PAll, nylon PA12 and copolymer nylon PA410, nylon PA610 etc. It is the most widely used and sold resin among the five major engineering plastics. Nylon has excellent wear resistance, corrosion resistance and good molding processability. With the wide application of nylon materials, the performance of nylon materials The requirements are getting higher and higher, but the existing nylon materials are poor in high temperature resistance, toughness, flame retardancy and cold resistance, and it is difficult to meet the actual needs. Theref...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L51/06C08L83/12C08K3/34C08K9/00C08K7/14C08K9/04C08K5/098C08K13/06
CPCC08L77/00C08K2201/011C08L2201/02C08L2201/08C08L51/06C08L83/12C08K3/34C08K9/00C08K7/14C08K9/04C08K5/098C08K13/06
Inventor 李福立林明佳张晓东
Owner 粟品(厦门)新材料科技有限公司
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