Novel polypropylene sheet and processing method thereof

A new type of plate and processing method technology, applied in chemical instruments and methods, coatings, layered products, etc., can solve the problems of uneven upper and lower plate surfaces, low production efficiency, complex processes, etc., and achieve smooth surface and production efficiency. Significant improvement and high structural strength

Pending Publication Date: 2018-12-21
南京麦格尔新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of the three-layer structure board connected by the honeycomb structure board core is low, and it is easy to be damaged in many occasions, and its three-layer structure is bonded by hot melt adhesive, which may easily cause bumps on the uneven surface of the upper and lower boards
The tube-drawn polypropylene sheet has no upper and lower cladding, so there are many limitations in application. The production process includes multiple processes such as tube drawing, tube arrangement, hot-melt bonding, cutting, etc. The process is complex and the production efficiency is low.

Method used

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  • Novel polypropylene sheet and processing method thereof
  • Novel polypropylene sheet and processing method thereof
  • Novel polypropylene sheet and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, comprises the following steps:

[0024] 1) Select materials with the following mass percentages respectively: 73% of the first PP material, 20% of the second PP material, 5% of talc powder, and 2% of color masterbatch. Among them, the melt flow rate of the first PP material reaches 2g / 10min. The formula hardness is 80, the density is 0.91g / cm, the melt flow rate of the second pp material reaches 6g / 10min, the Rockwell hardness is 85, and the density is 0.9g / cm.

[0025] 2) Mix all the materials evenly, melt the film at high temperature and pour the film onto the two vacuum molds with bumps arranged up and down, and the vacuum molds are directly plastic-absorbed to make the two-layer board core tightly bonded.

[0026] 3) The closely bonded two-layer board core passes through the coating mold, and the upper and lower cladding surfaces are coated on the board core to form a four-layer polypropylene board structure, which is then heated at a high temperatur...

Embodiment 2

[0027] Embodiment two, comprises the following steps:

[0028] 1) Select materials with the following mass percentages respectively: 75% of the first PP material, 18% of the second PP material, 5% of talc powder, and 2% of color masterbatch. Among them, the melt flow rate of the first PP material reaches 2g / 10min. The formula hardness is 80, the density is 0.91g / cm, the melt flow rate of the second pp material reaches 6g / 10min, the Rockwell hardness is 85, and the density is 0.9g / cm.

[0029] 2) Mix all the materials evenly, melt the film at high temperature and pour the film onto the two vacuum molds with bumps arranged up and down, and the vacuum molds are directly plastic-absorbed to make the two-layer board core tightly bonded.

[0030] 3) The closely bonded two-layer board core passes through the coating mold, and the upper and lower cladding surfaces are coated on the board core to form a four-layer polypropylene board structure, which is then heated at a high temperatur...

Embodiment 3

[0031] Embodiment three, comprises the following steps:

[0032] 1) Select materials with the following mass percentages respectively: 70% of the first PP material, 23% of the second PP material, 5% of talcum powder, and 2% of color masterbatch. Among them, the melt flow rate of the first PP material reaches 2g / 10min. The formula hardness is 80, the density is 0.91g / cm, the melt flow rate of the second pp material reaches 6g / 10min, the Rockwell hardness is 85, and the density is 0.9g / cm.

[0033] 2) Mix all the materials evenly, melt the film at high temperature and pour the film onto the two vacuum molds with bumps arranged up and down, and the vacuum molds are directly plastic-absorbed to make the two-layer board core tightly bonded.

[0034] 3) The closely bonded two-layer board core passes through the coating mold, and the upper and lower cladding surfaces are coated on the board core to form a four-layer polypropylene board structure, which is then heated at a high temper...

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Abstract

The invention provides a novel polypropylene sheet and a processing method thereof. The novel polypropylene sheet comprises a four-layer structure formed by two layers of central sheet cores and an upper-lower coated internal laminated film, wherein the sheet cores are of Yin-Yang boss structures distributed in an array form; the sunny side of each boss structure is a hollow cone cylinder body; the shaded sides and the sunny sides of two adjacent boss structures are separated in a staggered manner; the sunny sides of the boss structures between two adjacent sheet cores are butted; the shaded sides are butted against each other; the sheet cores are connected with upper and lower coated surfaces by the sunny sides of the boss structures. According to the novel polypropylene sheet and the processing method thereof provided by the invention, two layers of tightly connected sheet cores are simultaneously produced by a high-temperature vacuum forming process; then laminated films are synchronously and vertically bonded to the two layers of sheet cores at high temperature; the sheet has excellent characteristics of smooth surface, high crushing resistance, environment friendliness and thelike. The sheets are of upper-lower four-layer honeycomb structures; high peeling strength is formed among all the layers; extremely-high compression and bending resistance is realized by mutual support of all the layers.

Description

technical field [0001] The invention relates to the field of novel plates, in particular to a novel polypropylene plate and a processing method thereof. Background technique [0002] Polypropylene is a kind of thermoplastic resin, which has the characteristics of non-toxic, tasteless and odorless, light specific gravity, lower density than water, low water absorption, good molding, strong bending resistance, and very good mechanical properties. [0003] Existing polypropylene boards are three-layer structural boards connected by honeycomb structure board cores or tube-drawn polypropylene boards. The strength of the three-layer structure board connected by the honeycomb structure board core is low, and it is easy to be damaged in many occasions, and its three-layer structure is bonded by hot-melt adhesive, which may easily cause bumps on the uneven surface of the upper and lower boards. The tube-drawn polypropylene sheet has no upper and lower cladding, so there are many lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/32B32B33/00B29C41/20B29C41/50
CPCB29C41/20B29C41/50B32B27/08B32B27/32B32B33/00B32B2255/10B32B2255/26B32B2307/558B32B2307/718
Inventor 曹大双傅余平
Owner 南京麦格尔新材料科技有限公司
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