Unlock instant, AI-driven research and patent intelligence for your innovation.

Phosphogypsum multilayer foamed plastic plate and preparation method thereof

A gypsum and foam plastic technology, applied in the field of phosphogypsum-containing multi-layer foamed plastic board and its preparation, can solve the difficulty of printing relevant characters on the surface of the box, poor surface flatness of the surface layer of calcium plastic paper, difficult to mechanized flow packaging, etc. problem, to solve the problem of needing adhesive bonding, to decompose quickly, and to improve the effect of interfacial interaction

Active Publication Date: 2021-03-19
GUIZHOU MATERIAL IND TECH INSTITUE
View PDF16 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Single-layer calcium-plastic corrugated board is made of surface calcium-plastic paper, core layer of calcium-plastic corrugated paper, and bottom layer of calcium-plastic paper. As a result, the surface flatness of the surface calcium plastic paper is poor, which brings difficulties to the printing of related text on the surface of the box, and this thick and high tile structure shrinks greatly during cooling after thermal bonding, which further causes The surface of the paper is uneven, so it can only be screen printed by hand, not by mechanical assembly line screen calcium plastic printing; and because the board is thicker, when making the folds around the box, the rebound force is large, and manual printing is also required. Carried out one by one, it is difficult to pack with mechanized flowing water

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A multilayer foamed plastic board containing phosphorous gypsum, comprising: a surface layer, a core layer and a bottom layer; wherein, the surface layer and the bottom layer are both calcium plastic paper; the core layer is a single-layer foamed plastic board containing phosphorous gypsum; the core layer Raw materials include: 55g polyethylene, 20g phosphogypsum, 2.5g polyethylene glycol, 1.5g polyvinyl alcohol, 0.5g stearic acid, 0.02g 2-(2H-benzotriazol-2-yl)-4 , 6-di-tert-amylphenol (antioxidant), 2.0g titanium dioxide, 2.0g zinc stearate.

[0036] The raw materials of calcium plastic paper include: 55g polyethylene, 2.5g polyethylene glycol, 1.5g polyvinyl alcohol, 0.5g stearic acid, 0.02g 2-(2H-benzotriazol-2-yl)-4 , 6-di-tert-amylphenol, 2.0g titanium dioxide, 2.0g zinc stearate.

[0037] Preparation:

[0038] Phosphogypsum needs to be pretreated: Grind the phosphogypsum, sieve it to obtain a powder with a particle size of ≤50 microns, and dry it at 40°C for 16...

Embodiment 2

[0049] A multilayer foamed plastic board containing phosphorous gypsum, comprising: a surface layer, a core layer and a bottom layer; wherein, the surface layer and the bottom layer are both calcium plastic paper; the core layer is a single-layer foamed plastic board containing phosphorous gypsum; the core layer The raw materials include: 58g polyethylene, 25g phosphogypsum, 2.7g polyethylene glycol, 1.8g polyvinyl alcohol, 0.7g stearic acid, 0.03g 2-(2H-benzotriazol-2-yl)-4 , 6-di-tert-amylphenol (antioxidant), 2.2g titanium dioxide, 2.3g zinc stearate.

[0050] The raw materials of calcium plastic paper include: 58g polyethylene, 2.7g polyethylene glycol, 1.8g polyvinyl alcohol, 0.7g stearic acid, 0.03g antioxidant, 2.2g titanium dioxide, 2.3g zinc stearate.

[0051] Preparation:

[0052] Phosphogypsum needs to be pretreated: Grind the phosphogypsum, sieve it to obtain a powder with a particle size of ≤50 microns, and dry it at 43°C for 20 hours.

[0053] 11) Knead and sti...

Embodiment 3

[0063] A multilayer foamed plastic board containing phosphorous gypsum, comprising: a surface layer, a core layer and a bottom layer; wherein, the surface layer and the bottom layer are both calcium plastic paper; the core layer is a single-layer foamed plastic board containing phosphorous gypsum; the core layer Raw materials include: 60g polyethylene, 30g phosphogypsum, 3g polyethylene glycol, 2g polyvinyl alcohol, 1.0g stearic acid, 0.04g 2-(2H-benzotriazol-2-yl)-4,6 - Di-tert-amylphenol (antioxidant), 2.5 g titanium dioxide, 2.5 g zinc stearate.

[0064] The raw materials of calcium plastic paper include: 60g polyethylene, 3g polyethylene glycol, 2g polyvinyl alcohol, 1.0g stearic acid, 0.04g antioxidant, 2.5g titanium dioxide, 2.5g zinc stearate.

[0065] Preparation:

[0066] Phosphogypsum needs to be pretreated: Grind the phosphogypsum, sieve it to obtain a powder with a particle size of ≤50 microns, and dry it at 45°C for 24 hours.

[0067] 11) Knead and stir polyethy...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a phosphogypsum multilayer foamed plastic plate and a preparation method thereof and belongs to the technical field of packaging materials. A multi-layer structure is formed bycalcium plastic paper on the surface layer, a phosphogypsum single-layer foamed plastic plate on the core layer and calcium plastic paper on the bottom layer; and raw materials and a preparation method are provided. According to the phosphogypsum multilayer foamed plastic plate and the preparation method thereof of the invention, polyethylene glycol, polyvinyl alcohol and crystal water in phosphogypsum form hydrogen bonds and cross-linking action, and therefore, heavy metals in the phosphogypsum can be solidified, and meanwhile, the interface interaction and interlayer bonding can be improved, and therefore, the problem that a multilayer calcium-plastic plate needs to be bonded by a binder is solved; and in addition, the crystal water in the phosphogypsum is partially dehydrated to generate bubbles, so that the weight of the calcium-plastic plate can be reduced, the buffering power is improved, and a foaming agent is not needed for foaming. The use field of the phosphogypsum is expanded.

Description

technical field [0001] The invention relates to the technical field of packaging materials, and more specifically relates to a multilayer foamed plastic board containing phosphorous gypsum and a preparation method thereof. Background technique [0002] Compared with paper boards, calcium-plastic boards have the advantages of wear resistance, sturdiness, mildew resistance, and good airtightness. They are used to make packaging boxes and are popularized rapidly. Single-layer calcium-plastic corrugated board is made of surface calcium-plastic paper, core layer of calcium-plastic corrugated paper, and bottom layer of calcium-plastic paper. As a result, the surface flatness of the surface calcium plastic paper is poor, which brings difficulties to the printing of relevant text on the surface of the box, and this thick and high tile structure shrinks greatly during cooling after thermal bonding, which further causes The surface of the paper is uneven, so it can only be screen pri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/06B32B27/18B32B7/10B32B37/06B32B37/10C08L23/06C08L71/02C08L29/04C08K13/02C08K5/09C08K3/22C08K5/098C08K3/30C08J5/18
CPCB32B5/18B32B27/065B32B27/32B32B27/18B32B7/10B32B37/06B32B37/10C08J5/18B32B2266/025B32B2307/718B32B2307/558C08J2323/06C08J2471/02C08J2429/04C08K13/02C08K5/09C08K2003/2241C08K5/098C08K2003/3045
Inventor 徐定红郭建兵秦舒浩于杰郭少云
Owner GUIZHOU MATERIAL IND TECH INSTITUE