CN1131132A

CN1131132A - Compound fire-proof paper and its producing method

Info

Publication number: CN1131132A
Application number: CN 95111275
Authority: CN
Inventors: 银燕
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-14
Filing date: 1995-03-14
Publication date: 1996-09-18

Abstract

The present invention relates to a compound fire-proof paper and its production method. It uses (wt%) 30-50% of meerschaum, 40-60% of aluminium silicate fibre and 5-10% of silica flour as inorganic fire-retartant materials. Firstly, the meerschaum powder is placed in penetrant solution, heated and soaked, then the aluminium silicate fibre and methyl cellulose are added, and finally the sodium silicate, silica flour, polyvinyl alcohol and other auxiliary materials are added, stirred to make pulp, then the paper pulp is fed into paper-making machine and made into the invented compound fire-proof paper with high refractability.

Description

Compound fire-proof paper and production method thereof

The invention belongs to special paper products and make the field.

Sepiolite is used for frie retardant coating manufacturing as important source material with its good flame retardant property, but coating is because the limitation of itself is subjected to certain restriction when some specific occasions are used.

The purpose of this invention is to provide a kind of good fire resistant flame retardant performance that both had, have certain snappiness again, and do not contain asbestos and the organic compound fire-proof paper of phenyl.

The objective of the invention is to realize by following measure.

With inorganic fire-retarded thing is the compound fire-proof paper of main component, the weight percent of its inorganic fire-retarded thing is: sepiolite 30～40, aluminum silicate fiber 50～60, silica powder 5～10: during manufacturing, sepiolite powder is broken to 50～60 orders, at first sepiolite is put into osmotic agent solution and add heat soaking, add aluminium silicate fiber peacekeeping methyl fiber subsequently, add water glass, silica powder, polyvinyl alcohol and other auxiliary materials at last and carry out stirring pulping, the paper pulp that makes is gone into the papermaking of paper machine.

The compound fire-proof paper that adopts above measure to make has good fire resistant flame retardant performance, and is good with the affinity of dyestuff, both can be used as indoor and compartment inwall fire prevention wallpaper, can be used for Fire-proof packing box again.Owing to do not contain phenyl organism and fibrous magnesium silicate, compound fire-proof paper of the present invention can not discharge poisonous chemical gas when meeting high temperature, the harmful asbestos short fibre of when producing and use, also can not overflowing, and security is good.Prepared compound fire-proof paper, fire resistance is good, and refractory temperature is not less than 1000 ℃.

Embodiment 1:

Sepiolite 40, superfine alumina silicate fiber 55, silica powder 5.Sepiolite powder is broken to 50～80 orders, put into the solution that is added with permeate agent (OT), heat to about 60 ℃, soaked 24 hours, so that the abundant swelling of sepiolite powder adds aluminium silicate fiber peacekeeping methylcellulose gum subsequently, add water glass, silica powder, polyvinyl alcohol at last, and add aluminium dihydrogen phosphate and make high temperature adhesive, stirring pulping is adjusted PH to 7～8, qualified paper pulp.Gained paper pulp is gone into the papermaking of paper machine.It is polyvinyl alcohol than (calculating with solid) that institute adds supplementary product consumption: methylcellulose gum: water glass: permeate agent: aluminium dihydrogen phosphate=5: 5: 50: 12: 10.

Embodiment 2:

Sepiolite 30, aluminum silicate fiber 60, silica powder 5, expanded pearlite powder 5.Its manufacturing processed and ratio of adjuvant are with embodiment 1.Adding the expanded pearlite powder is the consumption of desiring suitably to reduce sepiolite and aluminum silicate fiber, to reduce cost.

Embodiment 3:

Sepiolite 35, aluminum silicate fiber 55, silica powder 10, its manufacturing processed and ratio of adjuvant are with embodiment 2.

When implementing, some raw materials can be replaced in the general knowledge scope by its equivalent, and for example, methylcellulose gum can be replaced permeate agent except that OT with ethyl cellulose, also can select other permeate agent commonly used such as (as OP) for use.

Claims

1, a kind of compound fire-proof paper, its main component is inorganic fire-retarded thing, it is characterized in that,

A) weight percent of inorganic fire-retarded thing is: sepiolite 40～60, aluminum silicate fiber 30～50, silica powder 5～10;

B) producting proportion of described each auxiliary material (in solid content) is: polyvinyl alcohol: methylcellulose gum: water glass: permeate agent: aluminium dihydrogen phosphate=5: 5: 50: 12: 10.

2, the production method of the described compound fire-proof paper of a kind of claim 1 is characterized in that, described inorganic fire-retarded thing adopts following method to make: sepiolite, silica powder are crushed to 50～80 orders; At first sepiolite is put into osmotic agent solution and add heat soaking, add aluminium silicate fiber peacekeeping methylcellulose gum subsequently, add water glass, silica powder, polyvinyl alcohol and other auxiliary materials at last and carry out stirring pulping, the paper pulp that makes is gone into the papermaking of paper machine.