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High-strength wear-resistant polyurethane spectacle frame and preparation method thereof

A spectacle frame and polyurethane technology, applied in the field of spectacle frames, can solve the problems of material thermal aging, skin allergy, poor wear resistance, etc., and achieve the effects of increasing wear resistance, increasing service life and reducing wear rate.

Inactive Publication Date: 2015-11-11
浙江方氏眼镜制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most early spectacle frames were metal spectacle frames. The metal spectacle frames in the prior art, such as spectacle frames made of titanium alloy or stainless steel, will release nickel, and the amount of nickel released is relatively large, which is easy to cause wearers Skin allergies, easy to deform, and high requirements for uniform thickness of spectacle frames, many steps in the production process, low production effect, and more waste in the production process, because it is more convenient for spectacle frames to pass through the injection molding process, so most of the existing market The spectacle frames are made of injection molding materials, and many improvements have been made in the industry in the research of spectacle frame materials. Friction generates heat, which causes the material to age due to heat, and the spectacle frame will harden, especially when producing glass fiber reinforced materials. Some people also develop silicone spectacle frames, which have good wear resistance and long service life, but are expensive and difficult to promote. Making an affordable, high-strength, wear-resistant spectacle frame takes more effort

Method used

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  • High-strength wear-resistant polyurethane spectacle frame and preparation method thereof
  • High-strength wear-resistant polyurethane spectacle frame and preparation method thereof
  • High-strength wear-resistant polyurethane spectacle frame and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Adopt the raw material of following weight portion proportioning:

[0014]

[0015]

[0016] Corresponding preparation process: first add polyether polyol, toluene diisocyanate, polyisocyanate, and polyethylene glycol with the above-mentioned ratio into the reactor, stir at 100°C for 2 hours to fully mix, and then mix the Graphite, polytetrafluoroethylene and MOCA are added to the reactor in turn, stirred at 80°C for 1 hour to fully mix to form injection molding materials, and finally the mixed injection molding materials are quickly poured into the mold of the injection molding machine, and the cooling parts are cooled. The product can be taken out.

Embodiment 2

[0018] Adopt the raw material of following weight portion proportioning:

[0019]

[0020] Corresponding preparation process: first add polyether polyol, toluene diisocyanate, polyisocyanate, and polyethylene glycol with the above-mentioned ratio into the reactor, stir at 105°C for 1.5 hours to fully mix, and then mix the Graphite, polytetrafluoroethylene and MOCA are added to the reactor in turn, stirred at 85°C for 1 hour to fully mix to form injection molding materials, and finally the mixed injection molding materials are quickly poured into the mold of the injection molding machine, and the cooling parts are cooled. The product can be taken out.

Embodiment 3

[0022] Adopt the raw material of following weight portion proportioning:

[0023]

[0024] Corresponding preparation process: first add polyether polyol, toluene diisocyanate, polyisocyanate, and polyethylene glycol with the above-mentioned ratio into the reactor, stir at 110°C for 1.5 hours and mix thoroughly, and then put the Graphite, polytetrafluoroethylene and MOCA are added to the reactor in turn, stirred at 90°C for 1 hour to fully mix to form injection molding materials, and finally the mixed injection molding materials are quickly poured into the mold of the injection molding machine, and the cooling parts are cooled. The product can be taken out.

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Abstract

The invention relates to a high-strength wear-resistant polyurethane spectacle frame and a preparation method thereof. The spectacle frame comprises 100 parts of polyether polyol, 15-30 parts of toluene diisocyanate, 10-20 parts of polyisocyanate, 8-15 parts of polyethyleneglycol, 3-6 parts of a wear-resistant agent and 1-3 parts of a vulcanizing agent. The preparation method comprises the following steps: first, adding polyether polyol, toluene diisocyanate, polyisocyanate and polyethyleneglycol which are blended according to a certain ratio into a reactor, and stirring the mixture I for 1-3 hours at 100-110 DEG C; then, sequentially adding graphite, polytetrafluoroethylene and MOCA into the reactor, and stirring the mixture II for 0.5-1.5 hours at 80-90 DEG C till an injection molding material is formed through thorough mixing; finally, injecting the injection molding material into a mold in an injection molding machine as soon as possible, and taking the cooled injection molded piece out of the mold, so as to obtain the molded spectacle frame. The prepared spectacle frame is moderate in cost, and high in strength and wear resistance, so that the service life of the spectacle frame can be greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of spectacle frames, in particular to a high-strength wear-resistant polyurethane spectacle frame and a preparation method thereof. Background technique [0002] Most early spectacle frames were metal spectacle frames. The metal spectacle frames in the prior art, such as spectacle frames made of titanium alloy or stainless steel, will release nickel, and the amount of nickel released is relatively large, which is easy to cause wearers Skin allergies, easy to deform, and high requirements for uniform thickness of spectacle frames, many steps in the production process, low production effect, and more waste in the production process, because it is more convenient for spectacle frames to pass through the injection molding process, so most of the existing market The spectacle frames are made of injection molding materials, and many improvements have been made in the industry in the research of spectacle frame mat...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L27/18C08G18/76C08G18/66C08G18/48C08G18/32C08K3/04
Inventor 杨智先江晓霞方慧方孔利
Owner 浙江方氏眼镜制造有限公司
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