CN102303962B - Microlite fireproof section - Google Patents

Abstract

The invention provides a fireproof section. The main ingredients of the microlite fireproof section comprise heavy calcium carbonate powder and polyvinyl chloride (PVC) resin. Other chemical assistants which may be one or more of alumina, hard lead, chlorinated poly ethylene (CPE), a dibutyl ester and a compound stabilizer. The fireproof section comprises 50 to 70 weight parts of heavy calcium carbonate powder, 20 to 40 weight parts of PVC resin and 5 to 25 weight parts of other chemical assistants. The fireproof section disclosed by the invention does not contain radioactive harmful matters, has high fireproof performance, can protect the safety of state property and people's life and property, and fills the blank of firefighting and fireproof sections in China.

Description

Microlite fireproof section

Technical field

The present invention relates to build and decorate and use fireproof section bar, relate in particular to a kind of Microlite fireproof section.

Background technology

In the present fire-retardant material component, most important fire-retardant composition is antimonous oxide, but it has radioactivity, and human body is had great harm and is unfavorable for environmental protection.And that most of fireproof section bars also have is aging fast, can distortion, the poor shortcoming of fire resistance.

Microlite, devitrified glass namely, also be beautiful spar, lustrous and transparent spar, micro-crystal board material, be called as micro-crystalline ceramic in the U.S., be called as sintered glass ceramics in Japan, refer in heat-processed, carry out a kind of a large amount of microcrystals and Vitrea composite solid material of containing that controlling crystallizing makes by parent glass.Compare with other natural stone, devitrified glass because have compact structure, high-strength, freeze proof, do not absorb water, anti-erosion, in appearance clean mark, lovely luster, aberration is little and the advantage such as fugitive color not, has become one of type material in numerous architectural decorative and fitting materialses.

Microlite is to choose several main components in the granite through high temperature, separates out special crystalline phase from the glass metal of special composition.Therefore, have very high hardness and intensity, in moulding process again through the typing of the high-temperature fusion of secondary, therefore, the texture that does not have lithotome to form, so microlite neither easy fracture, do not absorb water, be not afraid of again and corrode and pollute, glossiness is also high.Can not occur aberration, the accumulation of salt in the surface soil behind the decoration, tell the phenomenons such as juice, not need maintenance.

Existing market is not made fireproof section bar to microlite.Generally only be placed on integral cabinet and above the kitchen range top, existing microcrystal stone profile does not possess the fire retardant effect of national requirements.

Summary of the invention

In order to solve the problems of the technologies described above, the object of the present invention is to provide a kind of Microlite fireproof section, it does not comprise the radioactivity objectionable impurities, also has the good fire resistance that meets national standard.

For reaching described purpose, the present invention adopts following technical scheme:

The invention provides a kind of Microlite fireproof section, its main ingredient is heavy calcium carbonate powders and polyvinyl chloride resin, and other chemical assistants comprise one or more in aluminum oxide, antimonial lead, CPE, dibutylester and the one package stabilizer.

The weight proportion of described Microlite fireproof section is: water-ground limestone 50-70 part, polyvinyl chloride resin 20-40 part, other chemical assistants 5-25 part.

Preferably, 60 parts of described water-ground limestones, 25 parts of polyvinyl chloride resins, 15 parts of other chemical assistants.

Wherein said other chemical assistants comprise antimonial lead 1-5 part, CPE1-5 part, dibutylester 1-5 part, aluminum oxide 1-5 part and one package stabilizer 1-5 part.

Preferably, described other chemical assistants comprise 4 parts of antimonial lead, CPE4 part, 4 parts of dibutylesters, 1 part of 2 parts in aluminum oxide and one package stabilizer.

Antimonial lead: claim again lead stearate, as the working temperature of main thermo-stabilizer, stable carrier.

CPE (chlorinatedpolyethylene): as toughener, increase support strength.

Dibutylester: claim again two fourth DBP, as softening agent, enhancing smooth finish.

Aluminum oxide: substitute the antimonous oxide that uses in the prior art.

One package stabilizer: can select this area to commonly use one package stabilizer, for example in preferred embodiment of the present invention used one package stabilizer available from the friendly product of rubber and plastic in Hengshui, Hebei three factory, model: FWR, operative norm: KIHSY01-2007.

The fabrication processing of described Microlite fireproof section is: pulverize, mix, heat, granulation, moulding.Be that main raw material is equipped with other chemical assistants specifically, behind the High Temperature High Pressure sintering, obtain product by extruding-out process.

Microlite fireproof section of the present invention can be widely used in fireproof door frame, fire prevention window frame and fireproof brickwork partition etc.

Microlite fireproof section of the present invention has good fire resistance, national wealth and people's life and property safety is played a protective role, for NFA and fireproof section bar have been filled up blank.

The invention will be further described below in conjunction with embodiment, it should be understood that these embodiment only are used for the purpose of illustration, never limit protection scope of the present invention.

Embodiment

Embodiment 1

Raw material: water-ground limestone 60kg, polyvinyl chloride resin 25kg, antimonial lead 4kg, CPE 4kg, dibutylester 4kg, aluminum oxide 2kg and one package stabilizer 1kg.

Fabrication processing is: various raw materials are weighed by weight, carry out mixing after the pulverizing, when natural whipping temp is crossed 120 ℃, emit the material powder and pour the grain-making machine hopper into, through the grain-making machine work in-process particle that turns round out; Again the work in-process particle is added the forming machine hopper, through the moulding of forming machine mixing extrusion, packing warehouse-in after the check.

Embodiment 2

Raw material: water-ground limestone 50kg, polyvinyl chloride resin 20kg, antimonial lead 1kg, CPE 1kg, dibutylester 1kg, aluminum oxide 1kg and one package stabilizer 1kg.

Fabrication processing is with embodiment 1.

Embodiment 3

Raw material: water-ground limestone 70kg, polyvinyl chloride resin 40kg, antimonial lead 5kg, CPE 5kg, dibutylester 5kg, aluminum oxide 5kg and one package stabilizer 5kg.

Fabrication processing is with embodiment 1.

Experimental example

The fire door section bar product that adopts embodiment 1 to make, carry out status adjustment under the environment of (23 ± 2 ℃), for detection of the sample of outward appearance, size, the adjusting time is no less than 1h, other test item adjusting times are no less than 24h, and test with this understanding.

1. safety and sanitation performance

This product is nontoxic to human body, reaches GB/T 20285-2006 regulation and produces the requirement of eye toxicity risk classification ZA2 level.

2. combustionproperty

This product reaches the requirement of GB/T 8624-2006 regulation combustionproperty A1 level.

3. outward appearance and color

Get the long section bar of three sections 1m and make sample, under natural light, estimate.Surface of profile is smooth, bright and clean, and color and luster is even, not the defectives such as the convex-concave of impact use, scar, distortion, impurity.

4. section bar mechanical property

4.1 the quality of section bar

Each intercepted length is one on the sample of 200mm-300mm from three section bars;

Be not less than the balance weighing of 1g with precision, the length of section bar is at least the gage measuring of 0.5mm with precision, gets the mean value of three samples.

4.2 simple beam impact strength

Test by ISO 179:2000 regulation, test span L=(62) mm, sampling 1eA, five of sample quantities are averaged.Specimen size: 1=(80 ± 2) mm; B=(10.0 ± 0.2) mm; H: the visual wall thickness of section bar, unit are (mm); R=(0.25 ± 0.05) mm; BN=(8.0 ± 0.2) mm.

4.3 bending elastic modulus test

Regulation by GB/T 9341-2008 is tested.

4.4 Dimensional shrinkage under heat

Regulation by GB/T 8814-2004 is carried out

4.5 falling weight impact test

Test ambient temperature is room temperature, and the quality of dropping hammer is (500 ± 2) g, and height of the fall is 1000mm.Additive method is undertaken by GB/T 8814-2000.

4.6 the mensuration of ball-indentation hardness

Press the regulation test of GB/T 3398.1-2008, test load is 490N, keeps duration of load application 60s.

4.7 hold the mensuration of screw power

The size of test position and Shi Yang is advisable can satisfy test, and testing method is undertaken by the regulation of 4.10 among the GB/T 17657-1999.

Every mechanical property detected result of Microlite fireproof section of the present invention is as follows, all meets all standard.

5. fire prevention check

Microlite fireproof section of the present invention reaches GB 8624-1997A1 grade standard.And through Hubei Province's fire product quality monitoring testing station NO:2009JZ0360-1 that is up to the standards.

Claims (3)

1. a fireproof section bar is characterized in that raw material: water-ground limestone 60kg, polyvinyl chloride resin 25kg, lead stearate 4kg, CPE 4kg, dibutylester 4kg, aluminum oxide 2kg and one package stabilizer 1kg;

Fabrication processing is: various raw materials are weighed by weight, carry out mixing after the pulverizing, when natural whipping temp is crossed 120 ℃, emit the material powder and pour the grain-making machine hopper into, through the grain-making machine work in-process particle that turns round out; Again the work in-process particle is added the forming machine hopper, through the moulding of forming machine mixing extrusion, packing warehouse-in after the check.

2. a fireproof section bar is characterized in that raw material: water-ground limestone 50kg, polyvinyl chloride resin 20kg, lead stearate 1kg, CPE 1kg, dibutylester 1kg, aluminum oxide 1kg and one package stabilizer 1kg;

Fabrication processing is: various raw materials are weighed by weight, carry out mixing after the pulverizing, when natural whipping temp is crossed 120 ℃, emit the material powder and pour the grain-making machine hopper into, through the grain-making machine work in-process particle that turns round out; Again the work in-process particle is added the forming machine hopper, through the moulding of forming machine mixing extrusion, packing warehouse-in after the check.

3. a fireproof section bar is characterized in that raw material: water-ground limestone 70kg, polyvinyl chloride resin 40kg, lead stearate 5kg, CPE 5kg, dibutylester 5kg, aluminum oxide 5kg and one package stabilizer 5kg;

Fabrication processing is: various raw materials are weighed by weight, carry out mixing after the pulverizing, when natural whipping temp is crossed 120 ℃, emit the material powder and pour the grain-making machine hopper into, through the grain-making machine work in-process particle that turns round out; Again the work in-process particle is added the forming machine hopper, through the moulding of forming machine mixing extrusion, packing warehouse-in after the check.