Production method of inflaming retarding stone paper

A production method and technology of stone paper, applied in the field of flame retardant stone paper, can solve problems such as inability to fundamentally solve the problem of flame retardant, and achieve the effect of broad market prospects

Inactive Publication Date: 2012-04-18
上海石美实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] For example, if the front and back of stone paper are coated with flame retardant materials at the same time, although it has a certain flame retardant performance on the front, because the sandwich stone paper can produce side p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A flame-retardant stone paper, the raw material and its ratio are: 64% by weight of inorganic minerals; 20% polyethylene; 14% of flame retardant, 2% of film-forming aids, the above materials are sent to a high-speed mixer and mixed evenly , The mixture is transported to the extruder to be mixed and gelatinized into particles, and then the paper film blowing machine is used to make a flame-retardant stone paper substrate of suitable thickness.

[0038] The aforementioned inorganic mineral is natural calcium carbonate, and polyethylene is low-density or high-density polyethylene, or a mixture thereof.

[0039] The aforementioned flame retardant is a mixture, in which: antimony trioxide 4%, decabromodiphenyl ether DBDPO: 10%.

[0040] Antimony trioxide is the earliest flame retardant used. It is suitable for epoxy resin, polyurethane, neoprene, polystyrene, polyvinyl chloride, polyester, etc. When used alone, the amount is large and the flame retardant effect is poor (unless Fla...

Embodiment 2

[0044] A flame-retardant stone paper, the raw material and its ratio are: 58% by weight of inorganic minerals; 25% of polyolefin; 15% of flame retardant, 2% of film-forming aids, the above materials are sent to a high-speed mixer and mixed evenly , The mixture is transported to the extruder to be mixed and gelatinized into particles, and then the paper film blowing machine is used to make a flame-retardant stone paper substrate of suitable thickness.

[0045] The aforementioned inorganic mineral is a mixture of natural calcium carbonate and diatomaceous earth, and the polyolefin is low-density or high-density polyethylene, polypropylene, or a mixture thereof.

[0046] The aforementioned flame retardant is a magnesium hydroxide flame retardant.

[0047] Calcined basic magnesium chloride flame retardant can be obtained by using a certain concentration of MgCl 2 The aqueous solution and magnesium oxide are reacted at 80°C for 3h to obtain basic magnesium chloride, which is calcined at 3...

Embodiment 3

[0050] A flame-retardant stone paper, the raw material and its ratio are: 63% by weight of inorganic minerals; 25% of polyolefin; 10% of flame retardants, 2% of film forming aids, the above materials are sent to a high-speed mixer and mixed evenly , The mixture is transported to the extruder to be mixed and gelatinized into particles, and then the paper film blowing machine is used to make a flame-retardant stone paper substrate of suitable thickness.

[0051] The aforementioned inorganic mineral is mica powder or silica powder, and the polyolefin is low-density or high-density polyethylene, polypropylene, or a mixture thereof.

[0052] The aforementioned flame retardant is phosphorus nitrogen flame retardant masterbatch.

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Abstract

A production method of an inflaming retarding stone paper. The inflaming retarding stone paper comprises raw materials by weight of 55-65% of inorganic mineral, 15-30% of polyolefin, 8-18% of flame retardant and 1-5% of film-forming additive. The materials are sent to a high speed mixer to be uniformly mixed; and a mixed material is sent to an extruder and treated with milling and retrogradation to be prepared into particles; the particles are prepared into the inflaming retarding stone paper with a proper thickness by a paper film blowing machine. Because of addition of a special-purpose flame retardant, a defect of inflammability of existing stone paper is solved; the stone paper of the invention can be used for manufacture of a flame retardant wallpaper, is an ideal option for substituting an existing PVC wallpaper, and has wide market prospect.

Description

Technical field [0001] The present invention relates to international classification D21H pulp or pulp composition, paper not included in other categories; or C08K using inorganic or non-polymer organic matter as ingredients; or B32B layered product, that is, composed of flat or non-flat thin layers , Such as foam-like, honeycomb-like thin-layer products and other related technical fields, especially a flame-retardant stone paper and its production method. Background technique [0002] Currently, stone paper (Rich Mineral Paper, RMP) is also called stone paper. Take limestone mineral resources as the main raw material (calcium carbonate powder 70%~80%), use polymer as the base material (content 20%~30%), use the principle of polymer interface chemistry and the special polymer modification After processing, it is made by polymer extrusion and blow molding process. Stone paper products have writing and printing effects such as plant fiber paper, and also have the core properties ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/12C08K3/26C08K3/22C08K5/06C08K3/34
Inventor 王根宝
Owner 上海石美实业有限公司
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