High-strength heat-preserving foam box and forming process thereof
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A foam box, high-strength technology, applied in the molding process of high-strength, heat-insulating foam boxes, and the field of heat-insulating foam boxes, can solve the problems of poor strength, no good impact force, and easy damage of foam boxes
Inactive Publication Date: 2021-04-30
太仓大中包装材料有限公司
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Problems solved by technology
[0004] Purpose of the invention: In order to overcome the above deficiencies, the purpose of the present invention is to provide a high-strength, heat-insulat
Method used
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Embodiment 1
[0040] Such as figure 1 The shown high-strength, thermal insulation foam box includes a foam box bottom plate 1 and four foam box side panels 2, the lower ends of the four foam box side panels 2 are fixedly connected to the foam box bottom plate 1, and the foam box bottom plate 1 and Four foam box side panels 2 form a rectangular box structure with an upper end opening.
[0041] Among them, such as figure 2 , 3 The shown foam box bottom plate 1 includes a lower bottom plate body 11, an upper platen 12, a set of partition plates 13 and a set of reinforced support frame assemblies 14, the cross sections of the lower plate body 11 and the upper platen 12 are rectangular, and the upper The pressure plate 12 is covered on the upper end of the lower floor body 11, the middle position of the lower floor body 11 is provided with a rectangular cavity 15, and the set of partition plates 13 are arranged in parallel in the rectangular cavity 15, and separate The two ends of the plate ...
Embodiment 2
[0059] Based on the first embodiment, the foam box bottom plate 1 and the foam box side plate 2 include the following components in parts by weight: 60-100 parts of polylactic acid, 30-50 parts of polyethylene, and 6-17 parts of polyethylene glycol ether , 2-8 parts of polyester polyol, 5-16 parts of polyester resin, 6-18 parts of starch, 1-5 parts of foam stabilizer, 2-6 parts of seaweed extract, 1-4 parts of silicone oil, high alumina bauxite 3-5 parts, 8-15 parts of ethylene-vinyl acetate, 0.5-3 parts of expanded graphite, 3-7 parts of bamboo fiber, 1-4 parts of magnesium carbonate, 0.2-0.5 parts of stabilizer.
[0060] The present invention also provides its preparation method of the foam box bottom plate 1 and the foam box side plate 2, comprising the following steps:
[0061] 1. Put polylactic acid, polyethylene, polyethylene glycol ether, polyester polyol, and polyester resin in a mixer for mixing and stirring. The stirring temperature is 105-115°C, the stirring rate is...
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Abstract
The invention discloses a high-strength heat-preserving foam box and a forming process, and belongs to the technical field of preparation of new polymer packaging materials. The high-strength heat-preserving foam box comprises a foam box bottom plate and four foam box side plates, wherein the foam box bottom plate and the four foam box side plates form a rectangular box body structure with an opening in the upper end; and the foam box bottom plate comprises a lower bottom plate body, an upper pressing plate, a set of partition plates and a set of reinforcing supporting frame assemblies. The high-strength heat-preserving foam box is simple in structure and reasonable in design, the stiffness and strength of the foam box are improved, and the foam box is not prone to bending in the carrying process; the packaging cost is reduced; and moreover, foam has good impact resistance, the environmental protection effect is obvious, and the weight is reduced by about 20%. According to the forming process of the high-strength heat-preserving foam box, the preparation process is is simple, the foaming efficiency is high, foaming is uniform, the sound insulation and heat preservation effects of the foam plates are enhanced, and the structural strength and the surface smoothness of the foam plates are improved.
Description
technical field [0001] The invention belongs to the technical field of preparation of new polymer packaging materials, and in particular relates to a high-strength, heat-insulating foam box. The invention also relates to a molding process of a high-strength, heat-retaining foam box. Background technique [0002] Foam plastic is a kind of polymer material formed by dispersing a large number of gas micropores in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and its dielectric performance is better than that of matrix resin. It has a wide range of uses. Almost all kinds of plastics can be made into foamed plastics. Foam molding has become an important field in plastic processing. Foamed plastics are polymer materials with plastic as the basic component and contain a large number of bubbles. Therefore, it can also be said that it is filled with gas. composite plastic. Compared with pure plastic, it has man...
Claims
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Application Information
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