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Stably modified polyformaldehyde material and preparation method thereof

A polyoxymethylene material and a stabilization technology are applied in the field of stabilized and modified polyoxymethylene materials and their preparation, which can solve the problems of poor stability of the polyoxymethylene material, and achieve good stability, good heat resistance and aging resistance. Effect

Inactive Publication Date: 2015-12-30
SUZHOU FAST INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved is: in order to solve the problem of poor stability of traditional polyoxymethylene materials, provide a stabilized modified polyoxymethylene material and its preparation method

Method used

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  • Stably modified polyformaldehyde material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A stabilized modified polyoxymethylene material prepared from the following raw material components in parts by weight: 62 parts of polyoxymethylene, 5 parts of carbon black, 4 parts of triethanolamine, 3 parts of dicyandiamide, and 4 parts of ammonium molybdate , 2 parts of triphenyl phosphate, 3 parts of methyl stearate, 2 parts of 2-hydroxy-4-methoxybenzophenone, 3 parts of calcium hydroxide, 2 parts of magnesium carbonate, 3 parts of zinc sulfate, organic titanium 2 parts, 3 parts of urea, 2 parts of strange ice stone and 1 part of antioxidant.

[0019] Wherein, the antioxidant is triethylene glycol-di-3-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate.

[0020] The preparation method of above-mentioned polyoxymethylene material, comprises the following steps:

[0021] Step 1: Weighing raw materials according to certain parts by weight;

[0022] Step 2: Add each raw material in step 1 into a high-speed mixer, and blend for 10 minutes to obtain a blend;

[0023]...

Embodiment 2

[0026] A stabilized modified polyoxymethylene material prepared from the following raw material components in parts by weight: 85 parts of polyoxymethylene, 9 parts of carbon black, 13 parts of triethanolamine, 9 parts of dicyandiamide, and 8 parts of ammonium molybdate , 10 parts of triphenyl phosphate, 8 parts of methyl stearate, 9 parts of 2-hydroxy-4-methoxybenzophenone, 10 parts of calcium hydroxide, 6 parts of magnesium carbonate, 9 parts of zinc sulfate, organic titanium 7 parts, 8 parts of urea, 7 parts of strange ice stone and 5 parts of antioxidant.

[0027] Wherein, the antioxidant is triethylene glycol-di-3-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate.

[0028] The preparation method of above-mentioned polyoxymethylene material, comprises the following steps:

[0029] Step 1: Weighing raw materials according to certain parts by weight;

[0030] Step 2: adding each raw material in step 1 into a high-speed mixer, and blending for 20 minutes to obtain a blend;...

Embodiment 3

[0034] A stabilized modified polyoxymethylene material prepared from the following raw material components in parts by weight: 74 parts of polyoxymethylene, 7 parts of carbon black, 8 parts of triethanolamine, 6 parts of dicyandiamide, and 6 parts of ammonium molybdate , 6 parts of triphenyl phosphate, 5 parts of methyl stearate, 5 parts of 2-hydroxy-4-methoxybenzophenone, 6 parts of calcium hydroxide, 4 parts of magnesium carbonate, 6 parts of zinc sulfate, organic titanium 4 parts, 5 parts of urea, 4 parts of strange ice stone and 3 parts of antioxidant.

[0035] Wherein, the antioxidant is triethylene glycol-di-3-(3-tert-butyl-4-hydroxy-5-methylphenyl) propionate.

[0036] The preparation method of above-mentioned polyoxymethylene material, comprises the following steps:

[0037] Step 1: Weighing raw materials according to certain parts by weight;

[0038] Step 2: Add each raw material in step 1 into a high-speed mixer, and blend for 15 minutes to obtain a blend;

[0039...

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Abstract

The invention discloses a stably modified polyformaldehyde material. The stably modified polyformaldehyde material is prepared from the following raw materials in parts by weight: 62 to 85 parts of polyformaldehyde, 5 to 9 parts of carbon black, 4 to 13 parts of triethanolamine, 3 to 9 parts of dicyandiamide, 4 to 8 parts of ammonium molybdate, 2 to 10 parts of triphenyl phosphate, 3 to 8 parts of methyl stearate, 2 to 9 parts of 2-hydroxy-4-methoxybenzophenone, 3 to 10 parts of calcium hydroxide, 2 to 6 parts of magnesium carbonate, 3 to 9 parts of zinc sulfate, 2 to 7 parts of organic titanium, 3 to 8 parts of urea, 2 to 7 parts of tourmaline and 1 to 5 parts of antioxidant. The invention further discloses a preparation method of the stably modified polyformaldehyde material. According to the polyformaldehyde material prepared by using the preparation method, the range of the heat resistant temperature is 123 to 135 DEG C, the tensile strength is 76 to 96 MPa after being irradiated by a 1000h xenon lamp, the notch impact strength is 8.6 to 10.3 KJ / m<2>, and the polyformaldehyde material has the advantages of good heat resistance and aging resistance and good stability and is suitable for a larger applicable range.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a stabilized modified polyoxymethylene material and a preparation method thereof. Background technique [0002] Polyoxymethylene (POM) has excellent mechanical properties, electrical properties, wear resistance, fatigue resistance and chemical corrosion resistance. Its self-lubricating performance is particularly outstanding, and its specific strength and specific rigidity are close to metal. It is an ideal material for non-ferrous metals and alloys such as zinc, known as "the metal in plastics", and can be widely used in automobiles, machinery manufacturing, precision instruments, electronic appliances, military industry and other fields. However, due to the weak ether bond in the main chain of the polyoxymethylene molecule, it is easy to generate free radicals under the action of light and heat to decompose formaldehyde, and the oxidation of formaldehyde to formic acid further ...

Claims

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Application Information

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IPC IPC(8): C08L59/00C08K13/02C08K3/04C08K5/17C08K5/523C08K5/101C08K5/132B29C47/92B29C55/28B29C48/92
Inventor 彭孝茹
Owner SUZHOU FAST INFORMATION TECH CO LTD
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