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Polyformaldehyde material for automobile inertia disc, preparation method and application thereof

A polyoxymethylene material and polyoxymethylene technology, which is applied in the field of polymer materials, can solve the problems of whether it is applicable, can not meet the technical requirements of inertia disc materials, and does not mention the material shrinkage rate, etc., and achieves excellent surface quality. Conducive to environmental protection and the effect of reducing the production of toxic and harmful gases

Active Publication Date: 2014-05-28
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these advantages are not yet able to meet the technical requirements of inertia disk materials and need to be modified
[0004] Chinese invention patent CN 101061178A discloses a high-density polyoxymethylene composition, using zinc oxide, titanium dioxide or barium sulfate as the main filler, and the density of the composition can reach 2.3g / cm 3 , can be used to make perfume bottle caps or casino poker chips, but does not mention the shrinkage rate of the material, the uniformity of mass distribution, and whether it is suitable for inertial disk materials

Method used

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  • Polyformaldehyde material for automobile inertia disc, preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] First, polyoxymethylene, with a melt index of 3g / 10min, and the measurement conditions are: 190°C, 2.16kg load, and zinc oxide were placed in a blast oven with a temperature range of 80-90°C and dried for 3-4 hours.

[0048] Put 100 parts of polyoxymethylene and 0.1 parts of white oil into the high-speed mixer and mix for 1-2 minutes, then add 100 parts of zinc oxide, 0.5 parts of calcium stearate, 0.4 parts of antioxidant 245, 0.4 parts of Antioxidant 168, 0.5 parts of melamine, 0.5 parts of TAF lubricant, and 0.3 parts of PE wax are mixed in a high-speed mixer, melted and blended with a vented co-rotating twin-screw extruder, extruded and granulated, The screw speed is 280 rpm, the barrel temperature is as follows, and the relevant properties of the prepared material are shown in Table 1. The obtained polyoxymethylene material can be used as a material for preparing an automobile inertia disk.

[0049] Hopper zone 1 zone 2 zone 3 zone 4 zone 5 zone 6 zone 7 zone 8 zo...

Embodiment 2

[0052] First, polyoxymethylene, with a melt index of 12g / 10min, and the measurement conditions are: 190°C, 2.16kg load, and zinc oxide were placed in a blast oven with a temperature range of 80-90°C and dried for 3-4 hours.

[0053]Add 100 parts of polyoxymethylene, 0.2 parts of white oil into a high-speed mixer and mix for 1-2 minutes, then add 230 parts of zinc oxide, 1 part of calcium stearate, 0.3 parts of antioxidant 1010, 0.6 parts of Antioxidant 168, 0.8 parts of melamine formaldehyde condensate, 1 part of TAF lubricant and 0.6 parts of PE wax are added to a high-speed mixer and mixed, and then melted and blended with a vented co-rotating twin-screw extruder, extruded For granulation, the screw speed was 210 rpm, and the barrel temperature was as follows. The relevant properties of the prepared materials are shown in Table 1. The obtained polyoxymethylene material can be used as a material for preparing an automobile inertia disk.

[0054] Hopper zone 1 zone 2 zone 3 z...

Embodiment 3

[0057] First, polyoxymethylene, with a melt index of 18g / 10min, and the measurement conditions are: 190°C, 2.16kg load, and zinc oxide were placed in a blast oven with a temperature range of 80-90°C and dried for 3-4 hours.

[0058] Put 100 parts of polyoxymethylene, 0.2 parts of white oil into the high-speed mixer and mix for 1-2 minutes, then add 230 parts of zinc oxide, 0.8 parts of calcium stearate, 0.3 parts of antioxidant 2246, 0.6 parts of Antioxidant 168, 0.5 parts of melamine, 0.7 parts of TAF lubricant and 0.4 parts of PE wax are added to a high-speed mixer and mixed, then melted and blended with a vented co-rotating twin-screw extruder, extruded and granulated, The screw speed is 250 rpm, the barrel temperature is as follows, and the relevant properties of the prepared material are shown in Table 1. The obtained polyoxymethylene material can be used as a material for preparing an automobile inertia disk.

[0059] Hopper zone 1 zone 2 zone 3 zone 4 zone 5 zone 6 zon...

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Abstract

The invention belongs to the technical field of high polymer materials, and relates to a polyformaldehyde material, a preparation method and application of the material. The polyformaldehyde material is prepared from the following ingredients in parts by weight: 100 parts of polyformaldehyde, 100-230 parts of zinc oxide, 0.1-0.2 part of white oil, 0.5-1 part of calcium stearate, 0.3-0.6 part of a primary antioxidant, 0.3-0.6 part of an auxiliary antioxidant, 0.5-0.8 part of a formaldehyde absorbent, 0.1-0.3 part of a nucleating agent, and 5-15 parts of hollow glass. Compared with the prior art, the prepared material is high in density, low in percentage of contraction, uniform in mass distribution, good in surface quality, high in whiteness, good in rigidity, and excellent in tenacity.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a polyoxymethylene material for an automobile inertia disk, a preparation method and application thereof. Background technique [0002] The inertia disc of the automobile is a core component of the locking mechanism of the seat belt retractor. The inertia disc is installed on the seat belt reel and can rotate relative to the reel. When the car decelerates rapidly, due to mass inertia, the inertia plate will continue to rotate, relying on a control cam, the inertia plate will push a starting shoulder on the pawl, so that the pawl rotates around the pin axis, and the ratchet teeth on the frame Once the rings are engaged, the ring gear cannot rotate, nor can the spool attached to it, which allows the seat belt to tighten suddenly and secure the occupant in the seat. It can be seen that the density of the material used for the inertia disk must be large enough to ensure that...

Claims

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Application Information

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IPC IPC(8): C08L59/00C08L53/00C08K13/02C08K3/22C08K5/01C08K5/098C08K5/3492C08K5/134C08K5/13B29C47/92B29C48/92
CPCB29C48/04B29C48/40B29C48/875B29C48/92B29C2948/922B29C2948/92485B29C2948/92561B29C2948/9259B29C2948/92704B29C2948/92895B29C2948/92923
Inventor 王贻孙
Owner HEFEI GENIUS NEW MATERIALS
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