Transparent spectacle frame and preparation process thereof

文档序号：1948055 发布日期：2021-12-10 浏览：7次中文

阅读说明：本技术 一种透明眼镜架及其制备工艺 (Transparent spectacle frame and preparation process thereof ) 是由刘立军唐永俊杨智先方孔利于 2021-09-10 设计创作，主要内容包括：本发明公开了一种透明眼镜架及其制备工艺,所述透明眼镜架包括以下原料：聚氯乙烯30%-50%、引发剂3%-12%、分散剂4%-8%、抗氧化剂3%-9%、调节剂4%-7%、填料8%-12%和甘油20%-30%；包括如下步骤：P1、按照质量百分百称取各原料,备用；P2、得到混合物料；P3、得到调节物料；P4、得到反应物料；P5、将反应物料进行沉淀过滤,去除液体,留取沉积物,得到过滤物料；P6、得到挤出物料；P7、最后得到分级粉末；P8、将分级粉末和填料混合形成粉末物料,然后投入注塑机,加热注塑到模具中,形成眼镜框坯料和眼镜腿坯料；P9、使用螺钉组合安装,即可完成透明眼镜架的制备,提高透明效果的同时保证产品质量,利于生产制备和使用,方便推广。(The invention discloses a transparent spectacle frame and a preparation process thereof, wherein the transparent spectacle frame comprises the following raw materials: 30-50% of polyvinyl chloride, 3-12% of initiator, 4-8% of dispersant, 3-9% of antioxidant, 4-7% of regulator, 8-12% of filler and 20-30% of glycerol; the method comprises the following steps: p1, weighing the raw materials according to mass percentage for later use; p2, obtaining a mixed material; p3, obtaining a regulating material; p4, obtaining a reaction material; p5, precipitating and filtering the reaction material, removing liquid, and reserving sediment to obtain a filtered material; p6, obtaining an extruded material; p7, finally obtaining a graded powder; p8, mixing the graded powder and the filler to form a powder material, then putting the powder material into an injection molding machine, and heating and injecting the powder material into a mold to form a glasses frame blank and a glasses leg blank; p9, the transparent spectacle frame can be manufactured by screw combination and installation, the transparent effect is improved, the product quality is guaranteed, the production, the preparation and the use are facilitated, and the popularization is convenient.)

1. A transparent spectacle frame and a preparation process thereof are characterized in that: the transparent spectacle frame comprises the following raw materials: 30-50% of polyvinyl chloride, 3-12% of initiator, 4-8% of dispersant, 3-9% of antioxidant, 4-7% of regulator, 8-12% of filler and 20-30% of glycerol;

the preparation process of the transparent spectacle frame comprises the following steps:

p1, weighing the raw materials according to mass percentage for later use;

p2, adding polyvinyl chloride into glycerol, uniformly stirring for 15-20 minutes, and uniformly mixing to obtain a mixed material;

p3, adding a regulator into the mixed material, and regulating the pH value to 6.2-6.5 to obtain a regulated material;

p4, adding an initiator and a dispersant into the adjusting material, and uniformly stirring for 20 to 25 minutes at the speed of 150 to 170 revolutions per minute to obtain a reaction material;

p5, precipitating and filtering the reaction material, removing liquid, and reserving sediment to obtain a filtered material;

p6, putting the filtered material into an extruder, heating to a molten state, adding antioxidant, mixing and extruding to obtain an extruded material;

p7, respectively putting the extruded material and the filler into grinding equipment for crushing, then sorting by sorting equipment, removing large-particle materials and crushing again to finally obtain classified powder;

p8, mixing the graded powder and the filler to form a powder material, then putting the powder material into an injection molding machine, and heating and injecting the powder material into a mold to form a glasses frame blank and a glasses leg blank;

and P9, polishing the spectacle frame blank and the spectacle leg blank to form a smooth surface, keeping the transparent effect, and assembling by using screws to finish the preparation of the transparent spectacle frame.

2. A transparent spectacle frame and process according to claim 1 wherein: the dispersing agent is one of polyvinyl alcohol and hydroxypropyl methyl cellulose, and the initiator is dihexyl peroxydicarbonate.

3. A transparent spectacle frame and process according to claim 1 wherein: the regulator is an acid agent and comprises one of a hydrochloric acid solution with a concentration of 5%, a sulfuric acid solution with a concentration of 3% and a citric acid solution with a concentration of 12%.

4. A transparent spectacle frame and process according to claim 1 wherein: the filler is one of silicon dioxide, calcium carbonate and calcium sulfate, and is solid powder.

5. A transparent spectacle frame and process according to claim 1 wherein: the filtration and precipitation in the P5 process also comprises the steps of recycling liquid, drying solid sediments and adopting hot air drying, wherein the temperature is 60-70 ℃, and the duration is 40-50 minutes.

6. A transparent spectacle frame and process according to claim 1 wherein: the grinding equipment in the P7 is a ball mill, and the sorting equipment is multi-stage airflow sorting equipment, and comprises the following steps:

a1, putting materials into a ball mill, wherein the material ratio is 10:2-1, and the set temperature is 20-45 ℃;

a2, performing ball milling and crushing for 90 to 120 minutes at the speed of 600 to 850 revolutions per minute to obtain a ball milling material;

a3, putting the ball-milled material into a multi-stage airflow separation device, performing Qiu's retention separation by gravity, and separating qualified powder from large-particle powder;

a4, returning the large-particle powder into the ball mill, re-ball-milling and crushing, and then sorting again;

a5, and finally, mixing all the qualified powder to finish the grinding.

7. A transparent spectacle frame and process according to claim 1 wherein: the injection molding setting spray temperature in the P8 is 185-192 ℃, the extrusion pressure is 1.5-1.8 MPa, and the injection molding speed is 0.5-1.2 meters per second.

8. A transparent spectacle frame and process according to claim 1 wherein: and the injection molding in the P8 comprises the steps of preserving heat and maintaining pressure for 30-40 minutes after injection molding, demoulding, placing in a field at 90-100 ℃, and curing for 60-90 minutes.

9. A transparent spectacle frame and process according to claim 1 wherein: the polishing treatment in the P9 is realized by adding mixed polishing sand into a stirrer, stirring and polishing for 40 to 50 minutes at the speed of 25 to 30 revolutions per minute, and finally screening, taking out and cleaning.

Technical Field

The invention relates to the technical field of transparent spectacle frames, in particular to a transparent spectacle frame and a preparation process thereof.

Background

In the daily life, people wearing the glasses are more and more, and the styles of the glasses frame are more and more, wherein the transparent glasses frame structure is deeply favored by people due to the aesthetic property.

However, when the existing transparent spectacle frame is prepared, due to the limitation of the preparation process, when a single raw material is selected for preparation, although the transparency can be ensured, the structural strength is poor, the quality is low, and due to the process mode of adding auxiliary materials, because the fineness of the method is not controlled sufficiently, the raw material mixing is not uniform, the transparent effect is affected, the product quality is greatly reduced, and a new process method needs to be provided.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a transparent spectacle frame and a preparation process thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a transparent spectacle frame and a preparation process thereof are provided, wherein the transparent spectacle frame comprises the following raw materials: 30-50% of polyvinyl chloride, 3-12% of initiator, 4-8% of dispersant, 3-9% of antioxidant, 4-7% of regulator, 8-12% of filler and 20-30% of glycerol;

the preparation process of the transparent spectacle frame comprises the following steps:

p1, weighing the raw materials according to mass percentage for later use;

p2, adding polyvinyl chloride into glycerol, uniformly stirring for 15-20 minutes, and uniformly mixing to obtain a mixed material;

p3, adding a regulator into the mixed material, and regulating the pH value to 6.2-6.5 to obtain a regulated material;

p4, adding an initiator and a dispersant into the adjusting material, and uniformly stirring for 20 to 25 minutes at the speed of 150 to 170 revolutions per minute to obtain a reaction material;

p5, precipitating and filtering the reaction material, removing liquid, and reserving sediment to obtain a filtered material;

p6, putting the filtered material into an extruder, heating to a molten state, adding antioxidant, mixing and extruding to obtain an extruded material;

Preferably, the dispersant is one of polyvinyl alcohol and hydroxypropyl methyl cellulose, and the initiator is dihexyl peroxydicarbonate.

Preferably, the regulator is an acidic agent comprising one of a 5% hydrochloric acid solution, a 3% sulfuric acid solution and a 12% citric acid solution.

Preferably, the filler is one of silicon dioxide, calcium carbonate and calcium sulfate, and is solid powder.

Preferably, the filtering and precipitating in the P5 further comprises recycling liquid, drying the solid sediment, and drying with hot air at 60-70 ℃ for 40-50 minutes.

Preferably, the grinding device in P7 is a ball mill, and the sorting device is a multi-stage airflow sorting device, and comprises the following steps:

a1, putting materials into a ball mill, wherein the material ratio is 10:2-1, and the set temperature is 20-45 ℃;

a2, performing ball milling and crushing for 90 to 120 minutes at the speed of 600 to 850 revolutions per minute to obtain a ball milling material;

a3, putting the ball-milled material into a multi-stage airflow separation device, performing Qiu's retention separation by gravity, and separating qualified powder from large-particle powder;

a4, returning the large-particle powder into the ball mill, re-ball-milling and crushing, and then sorting again;

a5, and finally, mixing all the qualified powder to finish the grinding.

Preferably, the injection molding setting spray temperature in the P8 is 185-192 ℃, the extrusion pressure is 1.5-1.8 MPa, and the injection molding speed is 0.5-1.2 meters per second.

Preferably, the injection molding in the P8 comprises the steps of maintaining the temperature and the pressure for 30 to 40 minutes after injection molding, demolding, placing in a field at 90 to 100 ℃, and curing for 60 to 90 minutes.

Preferably, the polishing treatment in P9 is carried out by adding mixed polishing sand into a stirrer, stirring and polishing at the speed of 25 to 30 revolutions per minute for 40 to 50 minutes, and finally sieving, taking out and cleaning.

According to the transparent spectacle frame and the preparation process thereof, polyvinyl chloride is used as a basic raw material, so that the spectacle frame is light in texture and is beneficial to preparation, various auxiliary materials are used for processing, the structural strength and stability of the spectacle frame are guaranteed, multi-stage separation is carried out after ball milling crushing, the fineness of materials is guaranteed, the mixing uniformity is improved, the uniformity is guaranteed through injection molding, the transparent effect is improved, the product quality is guaranteed, the production, preparation and use are facilitated, and the transparent spectacle frame is convenient to popularize.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A transparent spectacle frame and a preparation process thereof are provided, wherein the transparent spectacle frame comprises the following raw materials: 30-50% of polyvinyl chloride, 3-12% of initiator, 4-8% of dispersant, 3-9% of antioxidant, 4-7% of regulator, 8-12% of filler and 20-30% of glycerol;