CN104891943A - Composite magnesium oxide board with excellent water-resistant and moisture-resistant effects and preparation method thereof - Google Patents

Abstract

The invention discloses a composite magnesium oxide board with excellent water-resistant and moisture-resistant effects. The invention is characterized in that the composite magnesium oxide board is prepared from the following raw materials in parts by weight: 42-45 parts of light-burned magnesium oxide, 40-42 parts of magnesium chloride hexahydrate, 5.5-7 parts of tourmaline powder, 0.2-0.25 part of silane coupling agent KH550, 1.5-2 parts of water-based polyurethane, 6-8 parts of 5% polyvinyl alcohol solution, 4-5 parts of emulsified asphalt, 6-8 parts of marble waste powder, 4.5-5 parts of metakaolin, 2.5-3 parts of aluminum dihydrogen phosphate, 2-3 parts of ethyl silicate, 15-18 parts of thermoplastic phenol formaldehyde resin, 5-6 parts of 25% urotropine water solution, 1.5-2.5 parts of aluminum silicate fiber and a right amount of pure water. The magnesium oxide board, which is prepared by optimizing the components through a certain technique, can release anions, has the health-care effect, has excellent water resistance, and solves the problems of moisture absorption, cracking and the like. The technique is convenient for industrial control, and prolongs the service life.

Description

Composite glass magnesium board of a kind of water resistant is moisture resistance excellent effect and preparation method thereof

Technical field

The present invention relates to decoration material field, particularly the composite glass magnesium board and preparation method thereof of the moisture resistance excellent effect of a kind of water resistant.

Background technology

Magnesium oxychloride gelatin material is a kind of air setting material, there is the power saving function of unburned, non-evaporating article of manufacture, magnesium oxychloride material has fabulous physical and mechanical property, it has outstanding fire line and wear resistance, and this material is widely used at construction work, public works, agriculture production, environmental protection industry (epi), mechanical packaging, traffic and field of light industry.Glass magnesium plate is the leading product of magnesium oxychloride gelatin materials industry, it has outstanding fire resistance, fire endurance can reach 1-4 hour, have excellent anti-folding, shock resistance, heat insulation, insulation, anticorrosive and lower shrinkage performance, there is the over-all properties being better than all kinds of artificial board.Glass magnesium plate can to harden consolidation environment more than 15 DEG C; Glass magnesium plate completely not containing asbestos and radioelement, and can receive in industrial and agricultural production and has contaminative waste, and not producing waste water and waste gas in production process, is therefore environmental protection shaped material.It instead of traditional clay brick and woodboard as materials for wall, building template and wrapping plate, is the strategic material of protection soil and timber resources.

Poor water resistance hinders the defect of glass magnesium plate development, and due to the structural performance of hydrated product, sheet material uses and easily returns halogen, warpage, distortion in wet environment, limits use range and the work-ing life of glass magnesium plate.Therefore, improve the water tolerance of glass magnesium plate, have great importance.

Simultaneously using glass magnesium plate as house decorative material time, people incessantly pursue attractive in appearance and require healthy.With tourmaline powder be the glass magnesium plate of additional additives as house decorative material time, the negative ion of release and far infrared rays, obnoxious flavour can not only be eliminated, suspended particle in absorption, gathering, settle air, can also promote blood circulation of human body, improve respiratory system, improve the health-care effecies such as sleep quality; Also there is antibacterial, the bacterium of indoor is grown up, breed and play suppression and elimination effect.Therefore the glass magnesium plate of various modification is more and more subject to the favor of human consumer, is the finishing material of environment protection health.

Summary of the invention

The object of this invention is to provide composite glass magnesium board of the moisture resistance excellent effect of a kind of water resistant and preparation method thereof.The present invention is by adding water-repellent modified dose of emulsified bitumen, tetraethyl silicate etc., coordinate the interpolation of metakaolin and aluminium dihydrogen phosphate, the aluminium silicon phosphorus linkage gelling material of indefinite form is produced in sheet material process of setting, these gelling material can fill the space of magnesia oxychloride cement structure, thus inhibit the stripping of the infiltration of water and chlorine, magnesium ion, therefore, it is possible to keep sheet material intensity, crystal formation, mass conservation under the state of immersion, thus improve water resisting property.The present invention also after plate forming at surface-coated one deck novolac resin layer, include aluminum silicate fiber, there is the effect that water-tight corrosion-proof is fire-retardant, decrease the erosion of external environment to sheet material, extend work-ing life.

In order to realize object of the present invention, the present invention is by following scheme implementation:

A composite glass magnesium board for water resistant is moisture resistance excellent effect, is made up of the raw material of following weight part: urotropine aqueous solution 5-6, aluminum silicate fiber 1.5-2.5 that polyvinyl alcohol solution 6-8, emulsified bitumen 4-5 that light calcined magnesia 42-45, magnesium chloride hexahydrate 40-42, tourmaline powder 5.5-7, silane coupling agent kh550 0.2-0.25, aqueous polyurethane 1.5-2, concentration are 5%, marble waste stone dust 6-8, metakaolin 4.5-5, aluminium dihydrogen phosphate 2.5-3, tetraethyl silicate 2-3, novolac resin 15-18, concentration are 25%, pure water are appropriate;

The composite glass magnesium board of the moisture resistance excellent effect of a kind of water resistant of the present invention, be made up of following concrete steps:

(1) tourmaline powder is mixed with silane coupling agent kh550, then the pure water being equivalent to mixture 2 times amount is added, pour into after sizing mixing in ball mill and carry out extra-fine grinding, after ball milling, filtering drying obtains ultrafine powder, superfine pulverizing is put in agitator, add polyvinyl alcohol solution and polyaminoester emulsion that concentration is 5% afterwards, be warming up to 40 DEG C, with the Rate Dispersion 30 minutes of 600-800 rev/min, continue to be warming up to 60 DEG C, be incubated after 2-3 hour, use pure water 2 times after being down to room temperature, dry and obtain the tourmalinite fine powder of surface active;

(2) by marble waste stone dust, it is for subsequent use that light calcined magnesia puts into mistake 180 mesh sieves formation mixed powders after ball mill for dry grinding 50-60 minute, it is fully dissolved formation solution by the pure water adding 2 times amount in magnesium chloride hexahydrate, leave standstill and put into stirrer after 24 hours, emulsified bitumen is mixed rear jointly adding in stirrer with tetraethyl silicate, mixed powder is added successively while stirring with the speed of 200 revs/min, metakaolin, the tourmalinite fine powder of the surface active that aluminium dihydrogen phosphate and step (1) obtain, 10-15 minute is stirred with the speed of 500 revs/min, form pasty material,

(3) be poured in the template of forming machine by pasty material, be provided with upper and lower two-layer low alkali glass fiber cloth in forming machine, raw material is between upper and lower two-layer low alkali glass fiber cloth, roll-forming, mold temperature controls at 30 DEG C, and molding time is 25-28 hour, the shaping rear demoulding;

(4) aluminum silicate fiber was pulverized 50 mesh sieves, to stir formation mixture with thermoplastic novolac resin and all the other remaining components, then while hot by mixture coating plate surface after demoulding, under normal temperature, air-set is dried, sent into curing room again, curing room temperature maintains 25-35 DEG C, maintenance 4-6 days, cuts shaping and get final product.

The invention has the beneficial effects as follows: the present invention is by optimizing the proportioning of each component, the glass magnesium plate made by certain technique, can anion releasing, there is certain health-care effect, water resistance is excellent simultaneously, solve the moisture absorption, problems of crack, technique is convenient to Industry Control, extends work-ing life.

Specific embodiments

Below by specific examples, the present invention is described in detail.

A composite glass magnesium board for water resistant is moisture resistance excellent effect, is made up of the raw material of following weight part (kilogram): the urotropine aqueous solution 5 that the polyvinyl alcohol solution 6 that light calcined magnesia 42, magnesium chloride hexahydrate 40, tourmaline powder 5.5, silane coupling agent kh550 0.2, aqueous polyurethane 1.5, concentration are 5%, emulsified bitumen 4, marble waste stone dust 6, metakaolin 4.5, aluminium dihydrogen phosphate 2.5, tetraethyl silicate 2, novolac resin 15, concentration are 25%, aluminum silicate fiber 1.5, pure water are appropriate;

The composite glass magnesium board of the moisture resistance excellent effect of a kind of water resistant of the present invention, be made up of following concrete steps:

(1) tourmaline powder is mixed with silane coupling agent kh550, then the pure water being equivalent to mixture 2 times amount is added, pour into after sizing mixing in ball mill and carry out extra-fine grinding, after ball milling, filtering drying obtains ultrafine powder, superfine pulverizing is put in agitator, add polyvinyl alcohol solution and polyaminoester emulsion that concentration is 5% afterwards, be warming up to 40 DEG C, with the Rate Dispersion 30 minutes of 800 revs/min, continue to be warming up to 60 DEG C, be incubated after 2 hours, use pure water 2 times after being down to room temperature, dry and obtain the tourmalinite fine powder of surface active;

(2) by marble waste stone dust, light calcined magnesia puts into ball mill for dry grinding, and after 50 minutes, 180 mesh sieves formation mixed powders are for subsequent use excessively, it is fully dissolved formation solution by the pure water adding 2 times amount in magnesium chloride hexahydrate, leave standstill and put into stirrer after 24 hours, emulsified bitumen is mixed rear jointly adding in stirrer with tetraethyl silicate, mixed powder is added successively while stirring with the speed of 200 revs/min, metakaolin, the tourmalinite fine powder of the surface active that aluminium dihydrogen phosphate and step (1) obtain, 10 minutes are stirred with the speed of 500 revs/min, form pasty material,

(3) be poured in the template of forming machine by pasty material, be provided with upper and lower two-layer low alkali glass fiber cloth in forming machine, raw material is between upper and lower two-layer low alkali glass fiber cloth, roll-forming, mold temperature controls at 30 DEG C, and molding time is 25 hours, the shaping rear demoulding;

(4) aluminum silicate fiber was pulverized 50 mesh sieves, to stir formation mixture with thermoplastic novolac resin and all the other remaining components, then while hot by mixture coating plate surface after demoulding, under normal temperature, air-set is dried, sent into curing room again, curing room temperature maintains 25-35 DEG C, maintenance 4-6 days, cuts shaping and get final product.

After testing, the performance test results of product of the present invention meets: resistance to impact shock>=25MPa, and dispatch from the factory water ratio≤8%, contract with dry rate≤0.3%, and wet rate≤0.6% that rises, uninflammability meets the requirement of GB8624-1997A level, density 1.08g/cm ³.

Claims (2)

1. the composite glass magnesium board of the moisture resistance excellent effect of water resistant, it is characterized in that, be made up of the raw material of following weight part: light calcined magnesia 42-45, magnesium chloride hexahydrate 40-42, tourmaline powder 5.5-7, silane coupling agent kh550 0.2-0.25, aqueous polyurethane 1.5-2, concentration is the polyvinyl alcohol solution 6-8 of 5%, emulsified bitumen 4-5, marble waste stone dust 6-8, metakaolin 4.5-5, aluminium dihydrogen phosphate 2.5-3, tetraethyl silicate 2-3, novolac resin 15-18, concentration is the urotropine aqueous solution 5-6 of 25%, aluminum silicate fiber 1.5-2.5, pure water is appropriate.

2. the composite glass magnesium board of the moisture resistance excellent effect of a kind of water resistant according to claim 1, is characterized in that, be made up of following concrete steps:

(1) tourmaline powder is mixed with silane coupling agent kh550, then the pure water being equivalent to mixture 2 times amount is added, pour into after sizing mixing in ball mill and carry out extra-fine grinding, after ball milling, filtering drying obtains ultrafine powder, superfine pulverizing is put in agitator, add polyvinyl alcohol solution and polyaminoester emulsion that concentration is 5% afterwards, be warming up to 40 DEG C, with the Rate Dispersion 30 minutes of 600-800 rev/min, continue to be warming up to 60 DEG C, be incubated after 2-3 hour, use pure water 2 times after being down to room temperature, dry and obtain the tourmalinite fine powder of surface active;

(2) by marble waste stone dust, it is for subsequent use that light calcined magnesia puts into mistake 180 mesh sieves formation mixed powders after ball mill for dry grinding 50-60 minute, it is fully dissolved formation solution by the pure water adding 2 times amount in magnesium chloride hexahydrate, leave standstill and put into stirrer after 24 hours, emulsified bitumen is mixed rear jointly adding in stirrer with tetraethyl silicate, mixed powder is added successively while stirring with the speed of 200 revs/min, metakaolin, the tourmalinite fine powder of the surface active that aluminium dihydrogen phosphate and step (1) obtain, 10-15 minute is stirred with the speed of 500 revs/min, form pasty material,

(3) be poured in the template of forming machine by pasty material, be provided with upper and lower two-layer low alkali glass fiber cloth in forming machine, raw material is between upper and lower two-layer low alkali glass fiber cloth, roll-forming, mold temperature controls at 30 DEG C, and molding time is 25-28 hour, the shaping rear demoulding;

(4) aluminum silicate fiber was pulverized 50 mesh sieves, to stir formation mixture with thermoplastic novolac resin and all the other remaining components, then while hot by mixture coating plate surface after demoulding, under normal temperature, air-set is dried, sent into curing room again, curing room temperature maintains 25-35 DEG C, maintenance 4-6 days, cuts shaping and get final product.