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Creep-resistant polyformaldehyde modified material and preparation method thereof

A modified material and polyoxymethylene technology are applied in the field of polyoxymethylene creep-resistant modified materials and their preparation, which can solve problems such as poor creep resistance, and achieve high creep resistance, simple preparation method, and enhanced creep resistance. good effect

Inactive Publication Date: 2018-03-06
SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the relatively poor creep resistance defect of existing polyoxymethylene modified materials, and provide a polyoxymethylene modified anti-creep material and a preparation method thereof; Composite with polyoxymethylene, and make nano-bentonite evenly dispersed in polyoxymethylene system, the obtained modified material has excellent creep resistance, which is beneficial to the application of polyoxymethylene in more fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Treat 12 parts of nano-bentonite with 0.5 part of triisopropyl aluminate;

[0032] (2) Coating the nano-bentonite treated with the coupling agent with 2 parts of glycerol triacetate and 2 parts of methyl tin mercaptide;

[0033] (3) Mix the coated nano-bentonite with 55 parts of polyoxymethylene with a degree of polymerization of 700, and then extrude in a parallel electric field with an electric field strength of 2.0kv / m and a constant electric field direction to obtain a mixture;

[0034] (4) Mix the mixture obtained in step 3 with 20 parts of nitrile rubber with a degree of polymerization of 160, 4 parts of trimethoxysilane, and 12 parts of polyacrylamide, and then extrude to obtain polyoxymethylene. sexual material.

Embodiment 2

[0036] (1) Treat 10 parts of nano-bentonite with 0.3 parts of triisopropyl aluminate;

[0037] (2) Coating the nano-bentonite treated with the coupling agent with 1.5 parts of glycerol triacetate and 1.5 parts of methyl tin mercaptide;

[0038] (3) Mix the coated nano-bentonite with 50 parts of polyoxymethylene with a degree of polymerization of 500, and then extrude in an electric field with an electric field strength of 1.5kv / m to obtain a mixture;

[0039] (4) Mix the mixture obtained in step 3 with 15 parts of nitrile rubber with a degree of polymerization of 120, 3 parts of trimethoxysilane, and 10 parts of polyacrylamide, and then extrude to obtain polyoxymethylene. sexual material.

Embodiment 3

[0041] (1) Treat 15 parts of nano-bentonite with 0.6 parts of triisopropyl aluminate;

[0042] (2) Coating the nano-bentonite treated with the coupling agent with 2.5 parts of glycerol triacetate and 2.5 parts of methyltin mercaptide;

[0043] (3) Mix the coated nano-bentonite with 60 parts of polyoxymethylene with a degree of polymerization of 900, and then extrude in a parallel electric field with an electric field strength of 2.5kv / m and a constant electric field direction to obtain a mixture;

[0044] (4) Mix the mixture obtained in step 3 with 25 parts of nitrile rubber with a degree of polymerization of 200, 5 parts of trimethoxysilane, and 15 parts of polyacrylamide, and then extrude to obtain polyoxymethylene creep resistance. sexual material.

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PUM

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Abstract

The invention discloses a polyoxymethylene creep-resistant modified material and a preparation method thereof, which comprises the following raw materials in parts by weight: 50-60 parts of polyoxymethylene, 10-15 parts of nano-bentonite, and 3-5 parts of modified agent, 15-25 parts of nitrile rubber, 0.3-0.6 parts of coupling agent, 3-5 parts of cross-linking agent, 10-15 parts of polyacrylamide; Composite with polyoxymethylene, and evenly disperse the nano-bentonite in the polyoxymethylene system, the obtained modified material has excellent creep resistance, which is beneficial to the application of polyoxymethylene in more fields.

Description

technical field [0001] The invention relates to the field of modified polyoxymethylene materials, in particular to a polyoxymethylene creep-resistant modified material and a preparation method thereof. Background technique [0002] Polyoxymethylene is an engineering plastic with excellent performance, a polymer of formaldehyde, and a highly crystalline resin. It has many advantages such as low water absorption, good dimensional stability and gloss, high heat resistance, bending strength, fatigue resistance, excellent wear resistance and electrical properties. POM is widely used in electronics, machinery, instruments, daily light industry, automobiles, building materials, agriculture and other fields. In many new fields of application, such as medical technology, sports equipment, etc., polyoxymethylene also shows a good growth trend. [0003] With the continuous improvement of people's requirements on the creep resistance of materials, it is difficult for polyoxymethylene ...

Claims

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Application Information

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IPC IPC(8): C08L59/00C08L9/02C08L33/26C08K9/10C08K9/04C08K3/34C08K5/5415C08J3/28
CPCC08L59/00C08J3/28C08J2359/00C08J2409/02C08K2201/003C08K2201/011C08L2205/03C08L9/02C08L33/26C08K9/10C08K9/04C08K3/346C08K5/5415
Inventor 舒春柳
Owner SICHUAN LIZHI JIUCHUANG INTPROP OPERATION CO LTD