阅读说明：本技术 一种吸塑复合eva片材 (Plastic uptake composite EVA sheet ) 是由 彭帅 于 2020-03-26 设计创作，主要内容包括：本发明公开了一种吸塑复合EVA片材,包括原材料层和EVA层,EVA层通过无味环保水性胶贴合在原材料层的上方,EVA层包括以下重量份数的组分：乙烯-醋酸乙烯酯基共聚物50份-70份、抗氧化剂10份-18份、紫外光稳定剂20份-25份、填充剂10份-20份、阻燃剂1份-5份、分散剂5份-8份、N,N亚乙烯基双硬酯酰胺3份-5份和二元醇2份-4份。本发明制成的吸塑复合EVA片材可应用于食品、医疗器具、化妆品、文具/玩具、日用品、五金、灯饰、电子数码通迅、运输包装业等领域,制作成本低,具有耐摔、防污、防褪色；硬度加强；碰触柔软、无气味、防磨、耐花；色彩丰富,单色色度纯真、平整,干净程度更高；运输中防减振、韧性好；防止易碎产品损坏；重量较轻。(The invention discloses a plastic uptake composite EVA sheet, which comprises a raw material layer and an EVA layer, wherein the EVA layer is attached above the raw material layer through tasteless environment-friendly water-based adhesive, and comprises the following components in parts by weight: 50-70 parts of ethylene-vinyl acetate based copolymer, 10-18 parts of antioxidant, 20-25 parts of ultraviolet light stabilizer, 10-20 parts of filler, 1-5 parts of flame retardant, 5-8 parts of dispersant, 3-5 parts of N, N vinylidene distearamide and 2-4 parts of dihydric alcohol. The plastic uptake composite EVA sheet prepared by the invention can be applied to the fields of food, medical appliances, cosmetics, stationery/toys, daily necessities, hardware, lamp decorations, electronic digital communication, transportation and packaging industries and the like, has low manufacturing cost, and has the advantages of falling resistance, pollution prevention and fading prevention; the hardness is enhanced; the touch is soft, odorless, wear-resistant and flower-resistant; the color is rich, the single-color chromaticity is pure, true and flat, and the cleanness degree is higher; the anti-vibration and anti-vibration properties during transportation are good; preventing damage to fragile products; the weight is light.)

1. The utility model provides a compound EVA sheet of plastic uptake which characterized in that: including raw material layer and EVA layer, the EVA layer laminate in the top on raw material layer through tasteless environmental protection waterborne glue, the EVA layer include the component of following parts by weight: 50-70 parts of ethylene-vinyl acetate based copolymer, 10-18 parts of antioxidant, 20-25 parts of ultraviolet light stabilizer, 10-20 parts of filler, 1-5 parts of flame retardant, 5-8 parts of dispersant, 3-5 parts of N, N vinylidene distearamide and 2-4 parts of dihydric alcohol.

2. The vacuum-forming composite EVA sheet of claim 1, wherein the raw material layer is a sheet made of PVC, PET, PS, or P L A.

3. The plastic uptake composite EVA sheet of claim 1, wherein: the antioxidant is a mixture of a phenol antioxidant and a triphenyl phosphate antioxidant, and the molar ratio of the phenol antioxidant to the triphenyl phosphate antioxidant is 1.8-2.4: 1.

4. The plastic uptake composite EVA sheet of claim 1, wherein: the ultraviolet light stabilizer is one or more of phenyl o-hydroxybenzoate, 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole, 2, 4-dihydroxybenzophenone and 2-hydroxy-4-methoxybenzophenone.

5. The plastic uptake composite EVA sheet of claim 1, wherein: the filler is inorganic nano particles, and the inorganic nano particles are one or two of calcium carbonate, talcum powder and whisker silicon carbide.

6. The plastic uptake composite EVA sheet of claim 1, wherein: the flame retardant is one or more of magnesium hydroxide and aluminum hydroxide.

7. The plastic uptake composite EVA sheet of claim 1, wherein: the dispersant is TAS-2A lubricating dispersant.

8. The plastic uptake composite EVA sheet according to any one of claims 1 to 7, wherein: the method comprises the following steps:

1) preparing a raw material layer sheet and an EVA layer material;

2) mixing EVA layer materials, and then preparing the EVA layer materials into granular materials through melt mixing, extrusion and granulation;

3) extruding the granular material in an extruder, heating the granular material at the heating temperature of 180-200 ℃, cooling the granular material at the cooling temperature of 60-80 ℃, and finally shaping the granular material by a sheet machine to obtain an EVA layer sheet;

4) and gluing the surface of the raw material layer sheet, placing the EVA layer sheet above the raw material layer sheet, and compounding to prepare the plastic uptake composite EVA sheet.

Technical Field

The invention belongs to the technical field of packaging materials, and particularly relates to a plastic uptake composite EVA sheet.

Background

The plastic sheet is a plastic processing material, which is made up through heating flat plastic hard sheet to soften, vacuum adsorption on the surface of mould, cooling and shaping. With the rapid development of electronic and packaging industries in recent years, the demand of plastic boards and sheets in domestic markets is continuously increasing at a rate of 12% per year. At present, the synthetic resins used for producing plastic plates and sheets in China mainly comprise polyvinyl chloride (PVC), polypropylene (PP), Polystyrene (PS), Polyethylene (PE), polyethylene terephthalate (PET) and the like. The plastic suction process has the advantages of low mold processing cost, short manufacturing time, high production efficiency, high yield per unit time and the like, and has been widely applied as a mature thermal forming technology. However, the existing blister sheet has the defects of easy scratching, falling resistance, poor vibration damping performance, beautiful appearance, poor touch feeling and the like, and can not meet the market demand gradually.

Disclosure of Invention

The invention aims to provide a plastic uptake composite EVA sheet to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a compound EVA sheet of plastic uptake, its structural feature lies in: including raw materials layer and EVA layer, the EVA layer is through the laminating of tasteless environmental protection waterborne glue in the top on raw materials layer, and the EVA layer includes the component of following parts by weight: 50-70 parts of ethylene-vinyl acetate based copolymer, 10-18 parts of antioxidant, 20-25 parts of ultraviolet light stabilizer, 10-20 parts of filler, 1-5 parts of flame retardant, 5-8 parts of dispersant, 3-5 parts of N, N vinylidene distearamide and 2-4 parts of dihydric alcohol.

Preferably, the raw material layer is a sheet made of PVC or PET or PS or P L a.

Preferably, the antioxidant is a mixture of a phenolic antioxidant and a triphenyl phosphite antioxidant, and the molar ratio of the phenolic antioxidant to the triphenyl phosphite antioxidant is 1.8-2.4: 1.

Preferably, the ultraviolet light stabilizer is one or more of phenyl ortho-hydroxybenzoate, 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole, 2, 4-dihydroxybenzophenone and 2-hydroxy-4-methoxybenzophenone.

Preferably, the filler is inorganic nano particles, and the inorganic nano particles are one or two of calcium carbonate, talcum powder and whisker silicon carbide.

Preferably, the flame retardant is one or more of magnesium hydroxide and aluminum hydroxide.

Preferably, the dispersant is a TAS-2A lubricating dispersant.

Preferably, the method comprises the following steps:

1) preparing a raw material layer sheet and an EVA layer material;

2) mixing EVA layer materials, and then preparing the EVA layer materials into granular materials through melt mixing, extrusion and granulation;

3) extruding the granular material in an extruder, heating the granular material at the heating temperature of 180-200 ℃, cooling the granular material at the cooling temperature of 60-80 ℃, and finally shaping the granular material by a sheet machine to obtain an EVA layer sheet;

4) and gluing the surface of the raw material layer sheet, placing the EVA layer sheet above the raw material layer sheet, and compounding to prepare the plastic uptake composite EVA sheet.

Compared with the prior art, the plastic uptake composite EVA sheet prepared by the invention can be applied to the fields of food, medical appliances, cosmetics, stationery/toys, daily necessities, hardware, lamp decoration, electronic digital communication, transportation and packaging industries and the like, has low manufacturing cost, and has the advantages of falling resistance, pollution prevention and fading prevention; the hardness is enhanced; the touch is soft, odorless, wear-resistant and flower-resistant; the color is rich, the single-color chromaticity is pure, true and flat, and the cleanness degree is higher; the anti-vibration and anti-vibration properties during transportation are good; preventing damage to fragile products; the weight is light.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-raw material layer and 2-EVA layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.