CN106518010A

CN106518010A - Lightweight self-thermal-insulation building blocks

Info

Publication number: CN106518010A
Application number: CN201610998890.9A
Authority: CN
Inventors: 李春花
Original assignee: Jinan Situo Xinyuan Pharmaceutical Technology Co Ltd
Current assignee: Sun Jizheng; Altera Corp
Priority date: 2016-11-14
Filing date: 2016-11-14
Publication date: 2017-03-22
Anticipated expiration: 2036-11-14
Also published as: WO2018086278A1; CN106518010B

Abstract

The invention discloses lightweight self-thermal-insulation building blocks. The lightweight self-thermal-insulation building blocks comprise, by mass, 50-55 parts of Yellow River clay, 41-44 parts of quartz sand silt, 2.5-4.3 parts of nano teflon, 1.2-1.7 parts of zinc oxide, 0.3-0.7 part of hafnium dioxide, 0.8-1.0 part of titanium carbide, 0.2-0.5 part of tantalum nitride, 2.4-3.0 parts of glass beads, 35-42 parts of first mixed solution, a first additive accounting for 2-3wt% of the mass of the first mixed solution, and a second additive accounting for 0.022-0.030wt% of the mass of the first mixed solution, wherein the first mixed solution comprises acrylic acid, polyvinyl alcohol, modified wheat straw and water. The lightweight self-thermal-insulation building blocks have the advantages that Yellow River clay and the wheat straw are used as the raw materials, waste is turned into wealth, resources are utilized comprehensively, a wall built by the building blocks does not need extra external wall insulation, the strength of the wall is increased evidently as compared with that of a structure built by traditional hollow bricks, high early strength is achieved, and the delivery cycle of the building blocks is shortened greatly; the produced thermal-insulation building blocks are excellent in thermal performance, high in strength, good in thermal insulation performance, low in cost and low in water absorption rate.

Description

A kind of light self-insulation building block

Technical field

The present invention relates to field of material technology, more particularly to a kind of light self-insulation building block.

Background technology

Outer wall self heat-preserving insulation blocks advantage is, with theme construction, the ageing height of project integral construction, to build by laying bricks or stones conveniently, exempt from The secondary cumbersome process for doing and being incubated is removed, building cost is reduced, price is relatively low.Novel wall is sintered using riverslakes sludge Material and the composite block produced using materials such as flyash, slag, gangues are fully utilized in China.Standard brick is used for Load bearing wall, porous brick are used for frame structure and fill wall.The problem of presence does not reach the Gongjian 50% of national regulation for body of wall, and residence is built 65% energy-saving heat preserving effect.Need to be incubated in exterior wall, expense of taking a lot of work is expected, long in time limit, fire protecting performance is low, soundproof effect is poor, exterior wall is protected Temperature such as also has short service life, easy infiltration, comes off at the quality problems.

Building seismic force from heavy and light is just little, favourable to antidetonation, compares with brick mixed building, same building, same ground Under the conditions of shake, Earthquake hazard degree differs a Seismic Design and sets up defences rank, and such as brick mixed building is set up defences up to 7 degree, and it can be damaged, and Now air entrained concrete building is only set up defences up to 6 degree, would not destroy.During HAICHENG EARTHQUAKE in 1975, more than 30 building celluar concretes are built Build exhibition evil slight, and neighbouring brick mixed building then earthquake is serious;During Tangshan Earthquake in 1976, five floor of Beijing Bai Jiazhuan Air entrained concrete load-bearing building, conduct oneself with dignity only 700kg/m2, in the case of being 6 degree strong in earthquake intensity at that time, without appearance after shake New crack, and the house of four layers of mixed structure at 50m, bottom but produces big diagonal crack.Under the conditions of identical ground, from The number of plies of the building of heavy and light can increase, economical advantages.

China is large agricultural country in addition, up to 8.42 hundred million tons of the yield of annual agricultural crop straw, and also with 1.3% speed Degree increases, and is the Renewable resource of substantial amounts in nature, and has the advantages that wide material sources, cheap.But, this Resource is simultaneously underutilized, have every year more than 95% stalk resource change into other forms by different utilization ways and It is dissipated, serious waste of resources.Crop in China stalk resource has a large capacity and a wide range, and its purposes is broadly divided into 4 aspects at this stage: As the raw material of industry, it is mainly used in commercial paper;As livestock feed;As fertilizer, fertilizer also field is made;As fuel, rural area life The energy living even so, still reasonably developed for a long time by resource, and major part is all incinerated, and this is the wave to natural resources Take, while also create serious environmental pollution with the concern and self-examination of countries in the world environmental pollution, straw should It is subject to people's attention with benefit.

Therefore rationally using existing resource exploitation meet national energy-saving insulation standard from heavy and light, the high materials for wall of intensity It is the direction of current research and development.

The content of the invention

The energy-saving heat preserving standard requirement for building 65% is occupied in order to meet national Gongjian 50%, existing resource, energy-conservation drop is made full use of Consumption, reduces the deadweight of heat insulation building block, while the huge contradiction that building material intensity and heat conductivity can not ensure simultaneously is solved, Embodiments provide a kind of light self-insulation building block.Using the substantial amounts of silt resources of China's rivers and lakes and wheat stalk For raw material, comprehensive utilization of resources, energy consumption are low, high insulating effect, fire protection flame retarding aging resistance, and durability is high, life-span length, performance Stable, light weight shock resistance is good, and the good product of safety and firmness, exterior wall are no longer incubated, you can reaches national Gongjian 50% and occupies Build 65% energy-saving heat preserving standard.Because exterior wall is not required to do exterior-wall heat insulation again, construction cost is relatively per square metre compared with traditional way Cost can reduce by more than 20%, and the duration can shift to an earlier date more than 30%, technology support simultaneously country prohibit it is real, save land, environmental protection, fire prevention, The multinomial fundamental state policy of comprehensive utilization of resources.

In order to realize foregoing invention purpose, the invention provides a kind of light self-insulation building block, the lightweight self-heat conserving block Block includes following raw material：The Yellow River clay 50-55 mass parts, quartz sand silt sand 41-44 mass parts, nanometer polytetrafluoroethylcomposite 2.5- 4.3 mass parts, Zinc Oxide 1.2-1.7 mass parts, hafnium oxide HfO₂0.3-0.7 mass parts, titanium carbide TIC0.8-1.0 mass Part, tantalum nitride TaN0.2-0.5 mass parts, glass microballoon 2.4-3.0 mass parts, one 35-42 mass parts of mixed solution, account for mixing The additive one of one mass 2-3wt% of solution and the additive two for accounting for one mass 0.022-0.030wt% of mixed solution；It is described mixed Close in solution one, including acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

The mixed solution one, wherein acrylic acid are part neutralization acrylic acid, and acrylic acid degree of neutralization is 60-70%.

In the mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw： Water quality ratio is 20-30：4-6:6-8：60-70.

The quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

The additive one is ammonium hydrogen carbonate；

The additive two includes potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide Mass ratio is 10-14:1.

The preparation method of the modified wheat straw is：Wheat stalk is dried, is crushed with pulverizer, was taken 120 mesh sieves Wheat stalk powder, add relative to wheat stalk powder quality 15-20 times sodium hydroxide solution one, be standing and soak for 18-20 little When, sucking filtration casts out filtrate, after remaining solid is washed with water to neutrality, dries at 50-60 DEG C,（The sodium hydroxide solution one Mass concentration is 6-10wt%）, pretreatment wheat stalk powder is obtained, is added relative to pretreatment wheat stalk powder 40-45 mass times N, N- dimethylene Methanamide DMF, after stirring 30-40min, continues to stir and add maleic anhydride MA, the maleic anhydride MA： Pretreatment wheat stalk powder mass ratio is 0.75-0.8:1, then heat to 100-110 DEG C and reacted, course of reaction keeps Product after reaction 2-6 hours, is cooled to room temperature, filters and remove filtrate, taken remaining solid after filtration, wash with water by stirring After 3-4 time, it is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw.

In order to goal of the invention is better achieved, the present invention also provides a kind of preparation method of light self-insulation building block, described The preparation method of light self-insulation building block is comprised the following steps：

（1）Acrylic acid is neutralized to degree of neutralization 60-70% with the sodium hydroxide solution two that mass concentration is 30wt%, propylene after must neutralizing Acid, it is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The sodium hydroxide solution one of quality 15-20 times, is standing and soak for 18-20 hours, and sucking filtration casts out filtrate, and remaining solid is washed with water To neutrality, dry at 50-60 DEG C, one mass concentration of the sodium hydroxide solution is 6-10wt%, obtains pretreatment wheat stalk Powder, adds N, the N- dimethylene Methanamide DMF relative to pretreatment wheat stalk powder 40-45 mass times, stirs 30-40min Afterwards, continue to stir and add maleic anhydride MA, the maleic anhydride MA：Pretreatment wheat stalk powder mass ratio is 0.75-0.8: 1, then heat to 100-110 DEG C and reacted, course of reaction is kept stirring for, and after reaction 2-6 hours, product is cooled to Room temperature, filters the solid after removing filtrate, after washing 3-4 time with water, is put at 60 DEG C of baking oven and dries, and just obtains modified little Wheat Straw, it is standby；

The distilled water relative to polyvinyl alcohol quality 6-7 times is added in PVAC polyvinylalcohol, being stirred and heated to 90 DEG C of 85- makes After PVAC polyvinylalcohol is completely dissolved, stops heating, be cooled to 15 DEG C -25 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 20-30：4-6:6-8：60-70；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, dioxy Change hafnium HfO₂, titanium carbide TIC, tantalum nitride TaN, glass microballoon and the mixed solution one be by weight 50-55：41-44：2.5- 4.3：1.2-1.7：0.3-0.7：0.8-1.0：0.2-0.5：2.4-3.0：After 35-42 is sufficiently mixed, slurry mix two is made； Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two is warming up to 60-80 DEG C, in being sufficiently stirred for backward slurry mix two, sequentially add the addition that addition accounts for one mass 2-3wt% of mixed solution Agent one, addition account for the additive two of one mass 0.022-0.030wt% of mixed solution, stop after then proceeding to stir 3-5 minutes Only stir, 8-10 hour curing moldings are incubated at 60-80 DEG C, then demoulding base substrate is dried 24-30h at 60 DEG C;

（3）Dried base substrate is calcined, first stage calcining heat is 120-150 DEG C, calcines 3-4h, subsequently in 30min 1300 DEG C～1350 DEG C are warming up to, second stage calcining, 5～8min of calcination time；Then 300-340 is cooled in 30min DEG C, phase III calcining, calcination time 3-5h;850-880 DEG C is warming up in 30min finally, calcining 24-30h sintering is finished, Cooling 24-48 hours, obtain light self-insulation building block.

Additive one described in the preparation method of the light self-insulation building block is ammonium hydrogen carbonate；

One addition of the additive is the 2-3wt% for accounting for one mass of mixed solution, and two addition of the additive is to account for The 0.022-0.030wt% of one mass of mixed solution.

The invention has the beneficial effects as follows：Raw material is the Yellow River clay, wheat stalk, is turned waste into wealth, comprehensive utilization of resources, section Substantially, heat insulation effect can reach the residence of national regulation Gongjian 50% and build more than 65% power conservation requirement ground effect, and the body of wall built by laying bricks or stones is not required to again Exterior-wall heat insulation is done, is compared intensity with conventional hollow brick masonry body phase and is dramatically increased, weight reduction more than 50%, combined wall thermal resistance Increase, significantly reduces energy consumption, and self-heat conserving excellent effect, exterior wall need not be incubated in addition, and the duration can shift to an earlier date 1/3, with building With the life-span up to more than 70 years.Building block need not be dried, and save the time, can be dried using roasting waste heat, and relative to current Other light self-insulation building blocks being dried, the power consumption of roasting are low.The light self-insulation building block early strength is high, Jing nature bars Part maintenance 7d intensity can reach 7.3-7.5 MPa, greatly shorten dispatching from the factory the cycle for building block；Obtained insulation blocks thermal property Excellent, product water absorption rate is low, can reach less than 9%.The insulation blocks do not produce secondary side-product, the useless environmental protection of profit.

Specific embodiment

For problem of the prior art, the present invention provides a kind of light self-insulation building block, and raw material has the Yellow River clay, Semen Tritici aestivi Straw, turns waste into wealth, comprehensive utilization of resources, prohibits the real, effect that saves land substantially, and heat insulation effect can reach national regulation Gongjian 50% and occupy More than 65% power conservation requirement is built, the body of wall built by laying bricks or stones is not required to do exterior-wall heat insulation again, compared with conventional hollow brick masonry body phase, pressure resistance Degree height, but the little light weight of density, shock resistance are good, and sound-insulating effect is fabulous, with building with the life-span up to more than 70 years.Should Light self-insulation building block early strength is higher, and water absorption rate is low, further saves the duration, reduces cost.

Based on mountain region, stage casing flows through Chinese loess plateau to Upper-middle Reaches of The Yellow River, carries a large amount of silt flows every year secretly downstream, tool Middle Yellow River business division data shows that produce 1,600,000,000 tons of silts per annual meeting, most times are up to 3,900,000,000 tons.With sticking fine grained When particle diameter is less than 0.01mm, deposition is relatively slow, forms the Yellow River clay layer.Main component has；Hydrosilicate, aluminium oxide simultaneously contain stone English, Anhydrite, Muscovitum and sulfate etc..The Yellow River clay has the characteristics of viscosity is big, plasticity is good, with quartz sand silt sand, nanometer poly- four The combination of the other materials such as fluorothene, glass microballoon can improve the combination property of product.

The present invention provides a kind of light self-insulation building block, it is characterised in that the light self-insulation building block includes following original Material：The Yellow River clay 50-55 mass parts, quartz sand silt sand 41-44 mass parts, nanometer polytetrafluoroethylcomposite 2.5-4.3 mass parts, oxidation Zinc 1.2-1.7 mass parts, hafnium oxide HfO₂0.3-0.7 mass parts, titanium carbide TIC 0.8-1.0 mass parts, tantalum nitride TaN 0.2-0.5 mass parts, glass microballoon 2.4-3.0 mass parts, one 35-42 mass parts of mixed solution, account for one mass 2- of mixed solution The additive one of 3wt% and the additive two for accounting for one mass 0.022-0.030wt% of mixed solution；In the mixed solution one, Including acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

The quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

The additive one is ammonium hydrogen carbonate；

The preparation method of the modified wheat straw is：Wheat stalk is dried, is crushed with pulverizer, was taken 120 mesh sieves Wheat stalk powder, add relative to wheat stalk powder quality 15-20 times sodium hydroxide solution one, be standing and soak for 18-20 little When, sucking filtration casts out filtrate, after remaining solid is washed with water to neutrality, dries, the sodium hydroxide solution one at 50-60 DEG C Concentration is 6-10wt%, obtains pretreatment wheat stalk powder, adds N, N- relative to pretreatment wheat stalk powder 40-45 mass times Dimethylene Methanamide DMF, after stirring 30-40min, continues to stir and add maleic anhydride MA, the maleic anhydride MA：It is pre- to locate Reason wheat stalk powder mass ratio is 0.75-0.8:1, then heat to 100-110 DEG C and reacted, course of reaction is kept stirring for, After reaction 2-6 hours, product is cooled to into room temperature, filters and remove filtrate, take remaining solid after filtration, after washing 3-4 time, It is put at 60 DEG C of baking oven and dries, just obtains modified wheat straw.

The preparation method of light self-insulation building block is comprised the following steps：

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 20-30：4-5:6-8：60-70；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, dioxy Change hafnium HfO₂, titanium carbide TIC, tantalum nitride TaN, glass microballoon and the mixed solution one be by weight 50-55：41-44：2.5- 4.3：1.2-1.7：0.3-0.7：0.8-1.0：0.2-0.5：2.4-3.0：After 35-42 is sufficiently mixed, slurry mix two is made； Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two is warming up to 60-80 DEG C, in being sufficiently stirred for backward slurry mix two, sequentially add the addition that addition accounts for one mass 2-3wt% of mixed solution Agent one, addition account for the additive two of one mass 0.022-0.030wt% of mixed solution, stop after then proceeding to stir 3-5 minutes Only stir, 8-10 hour curing moldings are incubated at 60-80 DEG C, then demoulding base substrate is dried 24-30h at 60 DEG C;

In embodiment, temperature is degree Celsius.Unspecified percentage composition is weight/mass percentage composition.

1 light self-insulation building block of the present invention of embodiment

A kind of light self-insulation building block, including following raw material：50 mass parts of the Yellow River clay, 42 mass parts of quartz sand silt sand, nanometer 3.5 mass parts of politef (Shanghai Guang Bin trade Co., Ltds), 1.5 mass parts of Zinc Oxide, hafnium oxide HfO₂0.5 mass Part (CAS No.12055-23-1, Shanghai Hu Zhen Industrial Co., Ltd.s), titanium carbide TIC0.8 mass parts (CAS No.12070- 08-5, one promise new high-tech material development corporation, Ltd. of Qinhuangdao), tantalum nitride TaN0.3 mass parts (CAS No.12033-62-4, (Codow can road) Guangzhou and be Chemical Co., Ltd.), 2.5 mass parts of glass microballoon (the limited public affairs of Yongqing County sea space glass microballoon Department), one 40 mass parts of mixed solution, the additive one for accounting for one mass 2.3wt% of mixed solution and account for one mass of mixed solution The additive two of 0.026wt%；In mixed solution one, including acrylic acid, PVAC polyvinylalcohol (CAS No.9002-89-5, model 1799), modified wheat straw and water.Wherein acrylic acid is part neutralization acrylic acid, and acrylic acid degree of neutralization is 70%.

In mixed solution one, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 26：5：6：65（Wherein After the acrylic acid of part neutralization is converted into equimolar unneutralized acrylic acid, according to unneutralized acrylic acid quality meter,）；Wherein Net content of the amount of PVAC polyvinylalcohol for polyvinyl alcohol, is not the content of PVAC polyvinylalcohol solution；

Quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves,

Additive one is ammonium hydrogen carbonate；

Additive two includes potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide quality Than for 12:1.(N hydroxymethyl acrylamide CAS No. 924-42-5)

Preparation method is comprised the following steps：

（1）Acrylic acid is neutralized to degree of neutralization 70% with the sodium hydroxide solution two that mass concentration is 30wt%, acrylic acid after must neutralizing, It is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The sodium hydroxide solution one that 20 times of quality, is standing and soak for 20 hours, and sucking filtration casts out filtrate, and remaining solid is washed with water to neutrality Afterwards, dry at 60 DEG C, one mass concentration of the sodium hydroxide solution is 6wt%, obtain pretreatment wheat stalk powder, add relative In N, N- dimethylene Methanamide DMF (CAS No.68-12-2) of 40 mass of pretreatment wheat stalk powder times, 40min is stirred Afterwards, continue to stir and add maleic anhydride MA (CAS No.108-31-6), the maleic anhydride MA：Pretreatment wheat stalk powder Mass ratio is 0.75:1, then heat to 110 DEG C and reacted, course of reaction is kept stirring for, after reacting 6 hours, product is cold But to room temperature, filter and remove filtrate, take remaining solid after filtration, after washing 3 times with water, be put at 60 DEG C of baking oven and dry, just Modified wheat straw is obtained, it is standby；

The distilled water relative to 7 times of polyvinyl alcohol quality is added in PVAC polyvinylalcohol, being stirred and heated to 85 DEG C makes polyethylene After alcohol PVA is completely dissolved, stops heating, be cooled to 20 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 26：5：6：65；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide HfO₂, carbon After change titanium TIC, tantalum nitride TaN, glass microballoon are sufficiently mixed in mass ratio with the mixed solution one, slurry mix is made Two；Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two heats up To 70 DEG C, the addition that addition accounts for one mass 2.3wt% of mixed solution in being sufficiently stirred for backward slurry mix two, is sequentially added Agent one, addition account for the additive two of one mass 0.026wt% of mixed solution, stop stirring after then proceeding to stirring 5 minutes, 8 hours curing moldings are incubated at 80 DEG C, then demoulding base substrate is dried 24h at 60 DEG C;

（3）Dried base substrate is calcined, first stage calcining heat is 120 DEG C, calcines 4h, is subsequently warming up in 30min 1350 DEG C, second stage calcining, calcination time 5min；Then 340 DEG C are cooled in 30min, phase III calcining, during calcining Between 4h;880 DEG C are warming up in 30min finally, fourth stage calcining, calcining 24h sintering are finished, and natural cooling 24 hours is obtained To light self-insulation building block.

Embodiment 2

A kind of light self-insulation building block, light self-insulation building block include following raw material：52 mass parts of the Yellow River clay, quartz sand silt sand 44 mass parts, 2.5 mass parts of nanometer polytetrafluoroethylcomposite, 1.2 mass parts of Zinc Oxide, hafnium oxide HfO₂0.3 mass parts, titanium carbide TIC0.9 mass parts, tantalum nitride TaN0.5 mass parts, 3.0 mass parts of glass microballoon, one 35 mass parts of mixed solution, account for mixing it is molten The additive one of one mass 2.5wt% of liquid and the additive two for accounting for one mass 0.022wt% of mixed solution；The mixed solution one In, including acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

Mixed solution one, wherein acrylic acid are part neutralization acrylic acid, and acrylic acid degree of neutralization is 60%.

In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality Amount is than being 30：4:7：70.

Quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

Additive one is ammonium hydrogen carbonate；

Additive two includes potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide quality Than for 10:1.

（1）Acrylic acid is neutralized to degree of neutralization 60% with the sodium hydroxide solution two that mass concentration is 30wt%, acrylic acid after must neutralizing, It is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The sodium hydroxide solution one that 15 times of quality, is standing and soak for 18 hours, and sucking filtration casts out filtrate, and remaining solid is washed with water to neutrality Afterwards, dry at 50 DEG C, one mass concentration of the sodium hydroxide solution is 10wt%, obtain pretreatment wheat stalk powder, add relative After N, the N- dimethylene Methanamide DMF of 45 mass of pretreatment wheat stalk powder times, stirring 30min, continue to stir and add Maleic anhydride MA, the maleic anhydride MA：Pretreatment wheat stalk powder mass ratio is 0.8:1, then heating to 100 DEG C is carried out Reaction, course of reaction are kept stirring for, and after reacting 2 hours, product are cooled to room temperature, filter and remove filtrate, take filter paper after filtration The remaining solid on upper strata, after washing 4 times with water, is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw, standby；

The distilled water relative to 6 times of polyvinyl alcohol quality is added in PVAC polyvinylalcohol, being stirred and heated to 85 DEG C makes polyethylene After alcohol PVA is completely dissolved, stops heating, be cooled to 15 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 30：4:7：70；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide HfO₂, carbon After change titanium TIC, tantalum nitride TaN, glass microballoon are sufficiently mixed in mass ratio with the mixed solution one, slurry mix is made Two；Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two heats up To 80 DEG C, the addition that addition accounts for one mass 2.5wt% of mixed solution in being sufficiently stirred for backward slurry mix two, is sequentially added Agent one, addition account for the additive two of one mass 0.022wt% of mixed solution, stop stirring after then proceeding to stirring 3 minutes, 10 hours curing moldings are incubated at 60 DEG C, then demoulding base substrate is dried 24h at 60 DEG C;

（3）Dried base substrate is calcined, first stage calcining heat is 150 DEG C, calcines 3h, is subsequently warming up in 30min 1300 DEG C, second stage calcining, calcination time 8min；Then 300 DEG C are cooled in 30min, phase III calcining, during calcining Between 5h;850 DEG C are warming up in 30min finally, calcining 30h sintering is finished, and natural cooling 24 hours obtains lightweight self-heat conserving Building block.

Embodiment 3

A kind of light self-insulation building block, light self-insulation building block include following raw material：54 mass parts of the Yellow River clay, quartz sand silt sand 43 mass parts, 4.3 mass parts of nanometer polytetrafluoroethylcomposite, 1.7 mass parts of Zinc Oxide, hafnium oxide HfO₂0.7 mass parts, titanium carbide TIC1.0 mass parts, tantalum nitride TaN0.2 mass parts, 2.4 mass parts of glass microballoon, one 42 mass parts of mixed solution, account for mixing it is molten The additive one of one mass 2.1wt% of liquid and the additive two for accounting for one mass 0.030wt% of mixed solution；The mixed solution one In, including acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

Mixed solution one, wherein acrylic acid are part neutralization acrylic acid, and acrylic acid degree of neutralization is 65%.

In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality Amount is than being 28：6:7：62.

Quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

Additive one is ammonium hydrogen carbonate；

Additive two is potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide mass ratio For 14:1.

（1）Acrylic acid is neutralized to degree of neutralization 65% with the sodium hydroxide solution two that mass concentration is 30wt%, acrylic acid after must neutralizing, It is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The mass concentration that 18 times of quality is the sodium hydroxide solution one of 8wt%, is standing and soak for 19 hours, sucking filtration, casts out filtrate, remaining solid After body is washed with water to neutrality, dry at 55 DEG C, obtain pretreatment wheat stalk powder, add relative to pretreatment wheat stalk powder N, the N- dimethylene Methanamide DMF of 42 mass times, after stirring 35min, continues to stir and add maleic anhydride MA, the Malaysia Anhydride MA：Pretreatment wheat stalk powder mass ratio is 0.78:1, then heat to 100 DEG C and reacted, course of reaction keeps stirring Mix, after reacting 4 hours, product is cooled to into room temperature, filters and remove filtrate, taken the remaining solid on filter paper upper strata after filtering, use water After washing 3 times, it is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw, it is standby；

The distilled water relative to 6 times of polyvinyl alcohol quality is added in PVAC polyvinylalcohol, being stirred and heated to 90 DEG C makes polyethylene After alcohol PVA is completely dissolved, stops heating, be cooled to 25 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 28：6:7：62；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide HfO₂, carbon After change titanium TIC, tantalum nitride TaN, glass microballoon are sufficiently mixed in mass ratio with the mixed solution one, slurry mix is made Two；Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two heats up To 60 DEG C, the addition that addition accounts for one mass 2.1wt% of mixed solution in being sufficiently stirred for backward slurry mix two, is sequentially added Agent one, addition account for the additive two of one mass 0.030wt% of mixed solution, then, stop stirring after continuing stirring 4 minutes, 9 hours curing moldings are incubated at 60 DEG C, then demoulding base substrate is dried 30h at 60 DEG C;

（3）Dried base substrate is calcined, first stage calcining heat is 130 DEG C, calcines 4h, is subsequently warming up in 30min 1320 DEG C, second stage calcining, calcination time 7min；Then 320 DEG C are cooled in 30min, phase III calcining, during calcining Between 3h;860 DEG C are warming up in 30min finally, calcining 26h sintering is finished, and natural cooling 30 hours obtains lightweight self-heat conserving Building block.

Embodiment 4

A kind of light self-insulation building block, light self-insulation building block include following raw material：55 mass parts of the Yellow River clay, quartz sand silt sand 44 mass parts, 3 mass parts of nanometer polytetrafluoroethylcomposite, 1.6 mass parts of Zinc Oxide, hafnium oxide HfO₂0.4 mass parts, titanium carbide TIC0.9 mass parts, tantalum nitride TaN0.4 mass parts, 2.7 mass parts of glass microballoon, one 39 mass parts of mixed solution, account for mixing it is molten The additive one of one mass 2.0wt% of liquid and the additive two for accounting for one mass 0.028wt% of mixed solution；The mixed solution one In, including acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

Mixed solution one, wherein acrylic acid are part neutralization acrylic acid, and acrylic acid degree of neutralization is 62%.

In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality Amount is than being 25：5: 8：60.

Quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

Additive one is ammonium hydrogen carbonate；

Additive two is potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide mass ratio For 13:1.

（1）Acrylic acid is neutralized to degree of neutralization 62% with the sodium hydroxide solution two that mass concentration is 30wt%, acrylic acid after must neutralizing, It is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The mass concentration that 15 times of quality is the sodium hydroxide solution one of 7wt%, is standing and soak for 18 hours, sucking filtration, casts out filtrate, remaining solid After body is washed with water to neutrality, dry at 60 DEG C, obtain pretreatment wheat stalk powder, add relative to pretreatment wheat stalk powder N, the N- dimethylene Methanamide DMF of 45 mass times, after stirring 40min, continues to stir and add maleic anhydride MA, the Malaysia Anhydride MA：Pretreatment wheat stalk powder mass ratio is 0.75:1, then heat to 110 DEG C and reacted, course of reaction keeps stirring Mix, after reaction 2-6 hours, product is cooled to into room temperature, filters and remove filtrate, take the remaining solid on filter paper upper strata, wash with water After washing 4 times, it is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw, it is standby；

The distilled water relative to 6.5 times of polyvinyl alcohol quality is added in PVAC polyvinylalcohol, being stirred and heated to 88 DEG C makes poly- second After enol PVA is completely dissolved, stops heating, be cooled to 20 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 25：5:8：60；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide HfO₂, carbon After change titanium TIC, tantalum nitride TaN, glass microballoon are sufficiently mixed in mass ratio with the mixed solution one, slurry mix is made Two；Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two heats up To 80 DEG C, the addition that addition accounts for one mass 2.0wt% of mixed solution in being sufficiently stirred for backward slurry mix two, is sequentially added Agent one, addition account for the additive two of one mass 0.028wt% of mixed solution, stop stirring after then proceeding to stirring 3 minutes, 8 hours curing moldings are incubated at 60 DEG C, then demoulding base substrate is dried 25h at 60 DEG C;

（3）Dried base substrate is calcined, first stage calcining heat is 140 DEG C, calcines 3h, is subsequently warming up in 30min 1330 DEG C, second stage calcining, calcination time 6min；Then 310 DEG C are cooled in 30min, phase III calcining, during calcining Between 4h;870 DEG C are warming up in 30min finally, calcining 24h sintering is finished, and natural cooling 48 hours obtains lightweight self-heat conserving Building block.

Embodiment 5

A kind of light self-insulation building block, light self-insulation building block include following raw material：51 mass parts of the Yellow River clay, quartz sand silt sand 41 mass parts, 4 mass parts of nanometer polytetrafluoroethylcomposite, 1.4 mass parts of Zinc Oxide, hafnium oxide HfO₂0.6 mass parts, titanium carbide TIC0.8 mass parts, tantalum nitride TaN0.3 mass parts, 2.9 parts of glass microballoon, one 41 mass parts of mixed solution, account for mixed solution one The additive one of quality 3wt% and the additive two for accounting for one mass 0.025wt% of mixed solution；In the mixed solution one, bag Include acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

Mixed solution one, wherein acrylic acid are part neutralization acrylic acid, and acrylic acid degree of neutralization is 69%.

In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality Amount is than being 20：4:8：70.Quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

Additive one is ammonium hydrogen carbonate；

Additive two is potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide mass ratio For 11.5:1.

（1）Acrylic acid is neutralized to degree of neutralization 69% with the sodium hydroxide solution two that mass concentration is 30wt%, acrylic acid after must neutralizing, It is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The mass concentration that 15 times of quality is the sodium hydroxide solution one of 10wt%, is standing and soak for 20 hours, sucking filtration, casts out filtrate, remaining solid After body is washed with water to neutrality, dry at 50 DEG C, obtain pretreatment wheat stalk powder, add relative to pretreatment wheat stalk powder N, the N- dimethylene Methanamide DMF of 45 mass times, after stirring 40min, continues to stir and add maleic anhydride MA, the Malaysia Anhydride MA：Pretreatment wheat stalk powder mass ratio is 0.8:1, then heat to DEG C be reacted, course of reaction is kept stirring for, instead After answering 3 hours, product is cooled to into room temperature, filters and remove filtrate, taken the remaining solid after filtering, after washing 4 times with water, be put into Dry at 60 DEG C of baking oven, just obtain modified wheat straw, it is standby；

The distilled water relative to 6 times of polyvinyl alcohol quality is added in PVAC polyvinylalcohol, being stirred and heated to 85 DEG C makes polyethylene After alcohol PVA is completely dissolved, stops heating, be cooled to 25 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 20：4:8：70；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide HfO₂, carbon After change titanium TIC, tantalum nitride TaN, glass microballoon are sufficiently mixed in mass ratio with the mixed solution one, slurry mix is made Two；Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two heats up To 60 DEG C, the additive that addition accounts for one mass 3wt% of mixed solution in being sufficiently stirred for backward slurry mix two, is sequentially added One, addition accounts for the additive two of one mass 0.025wt% of mixed solution, stops stirring, 70 after then proceeding to stirring 5 minutes 9 hours curing moldings are incubated at DEG C, then demoulding base substrate is dried 28h at 60 DEG C;

（3）Dried base substrate is calcined, first stage calcining heat is 140 DEG C, calcines 4h, is subsequently warming up in 30min 1310 DEG C, second stage calcining, calcination time 6min；Then 340 DEG C are cooled in 30min, phase III calcining, during calcining Between 4h;880 DEG C are warming up in 30min finally, calcining 24h sintering is finished, and natural cooling 36 hours obtains lightweight self-heat conserving Building block.

Embodiment 6

A kind of light self-insulation building block, light self-insulation building block include following raw material：53 mass parts of the Yellow River clay, quartz sand silt sand 42 mass parts, 3.2 mass parts of nanometer polytetrafluoroethylcomposite, 1.3 mass parts of Zinc Oxide, hafnium oxide HfO₂0.4 mass parts, titanium carbide TIC1.0 mass parts, tantalum nitride TaN0.2 mass parts, 2.8 mass parts of glass microballoon, one 37 mass parts of mixed solution, account for mixing it is molten The additive one of one mass 2wt% of liquid and the additive two for accounting for one mass 0.024wt% of mixed solution；The mixed solution one In, including acrylic acid, PVAC polyvinylalcohol, modified wheat straw and water.

In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality Amount is than being 23：5:7：66.

Quartz sand silt sand was the quartz sand silt sand of 100 mesh sieves.

Additive one is ammonium hydrogen carbonate；

Additive two includes potassium peroxydisulfate and N hydroxymethyl acrylamide, wherein potassium peroxydisulfate：N hydroxymethyl acrylamide quality Than for 11:1.

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The sodium hydroxide solution one that 17 times of quality, is standing and soak for 19 hours, and sucking filtration casts out filtrate, and remaining solid is washed with water to neutrality Afterwards, dry at 55 DEG C, one concentration of the sodium hydroxide solution is 6wt%, obtain pretreatment wheat stalk powder, add relative to pre- N, the N- dimethylene Methanamide DMF of 43 mass of wheat stalk powder times are processed, after stirring 36min, is continued to stir and is added Malaysia Anhydride MA, the maleic anhydride MA：Pretreatment wheat stalk powder mass ratio is 0.76:1, then heating to 104 DEG C is carried out instead Should, course of reaction is kept stirring for, and after reacting 4 hours, product is cooled to room temperature, filters and remove filtrate, takes filter paper after filtration The remaining solid on upper strata, after washing 3 times with water, is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw, standby；

The distilled water relative to 7 times of polyvinyl alcohol quality is added in PVAC polyvinylalcohol, being stirred and heated to 90 DEG C makes polyethylene After alcohol PVA is completely dissolved, stops heating, be cooled to 15 DEG C, obtain PVAC polyvinylalcohol solution for standby；

（2）Acrylic acid, PVAC polyvinylalcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution One;In mixed solution one, with unneutralized acrylic acid, acrylic acid：PVAC polyvinylalcohol：Modified wheat straw：Water quality ratio is 23：5:7：66；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide HfO₂, carbon After change titanium TIC, tantalum nitride TaN, glass microballoon are sufficiently mixed in mass ratio with the mixed solution one, slurry mix is made Two；Nitrogen is poured in slurry mix two while being stirred vigorously displacement oxygen therein, subsequently slurry mix two heats up To 80 DEG C, the additive that addition accounts for one mass 2wt% of mixed solution in being sufficiently stirred for backward slurry mix two, is sequentially added One, addition accounts for the additive two of one mass 0.024wt% of mixed solution, stops stirring, 70 after then proceeding to stirring 5 minutes 9 hours curing moldings are incubated at DEG C, then demoulding base substrate is dried 24h at 60 DEG C;Additive is ammonium hydrogen carbonate：Ammonium ceric nitrate (NH₄)₂Ce(N0₃)₆Mass ratio is 23:1.

（3）Dried base substrate is calcined, first stage calcining heat is 150 DEG C, calcines 3h, subsequently risen in 30min Temperature to 1330 DEG C, calcine, calcination time 6min by second stage；Then 340 DEG C are cooled in 30min, phase III calcining is forged Burning time 3h;870 DEG C are warming up in 30min finally, calcining 26h sintering is finished, natural cooling 26 hours obtains lightweight certainly Insulation blocks.

Comparative example

1 the Yellow River clay standard brick of comparative example（Porous brick）

Yellow river silt standard brick（Porous brick）, the Yellow River clay 70%, gangue 30%, monolithic weigh 2.4, more than comprcssive strength 15MPa, For building load bearing wall, masonry must do exterior-wall heat insulation, take a lot of work, high cost, long in time limit, heat insulation effect it is poor.

Preparation method：Compound → stirring → molding → drying → sintering → kiln discharge piling.

2 concrete brick of comparative example

Concrete brick, 240*115*53, monolithic weigh 3.5, primary raw material cement 15%, stone nitre 10%, stone powder 45%, flyash 30%, comprcssive strength is more than 15MPa, and for building load bearing wall, dead weight is big, and body of wall must do exterior-wall heat insulation, workman's work Intensity is big, takes a lot of work, and high cost, heat insulation effect are poor.

Preparation method：Cloth → stirring → conveying → molding → the plate that falls → finished product maintenance → finished product.

Comparative example 3

On the basis of embodiment 1, the Yellow River clay and quartz sand silt sand are replaced with into Portland cement and sand, other conditions It is constant.

Density is 732kg/m, and comprcssive strength 7.2Mpa, water absorption rate 15%, resistance to weathering energy 0.68 need to do external thermal insulation.

Comparative example 4

On the basis of embodiment 1, it is not added with nanometer polytetrafluoroethylcomposite and glass microballoon other conditions is constant.

Density is 711kg/m, and comprcssive strength 6.9Mpa, water absorption rate 15%, resistance to weathering energy 0.67 need to do external thermal insulation.

Comparative example 5

On the basis of embodiment 1, mixed solution one and additive are not added with, only retain the moisture in mixed solution one, other conditions It is constant.

Base substrate calcining is to need to be warmed up to 950-1250 DEG C, calcines 36-48h, and density is 834kg/m, comprcssive strength 7.2Mpa, water absorption rate 13%, resistance to weathering energy 0.69.

Comparative example 6

On the basis of embodiment 1, modified wheat straw in mixed solution one, is not added with, other conditions are constant.

Density is 747kg/m, comprcssive strength 7.0Mpa, water absorption rate 16%, and resistance to weathering can 0.67.

Comparative example 7

On the basis of embodiment 1, PVAC polyvinylalcohol in mixed solution one, is not added with, other conditions are constant.

Density is 764kg/m, and comprcssive strength 7.8Mpa, water absorption rate 16%, resistance to weathering energy 0.68 need to do external thermal insulation.

Comparative example 8

On the basis of embodiment 1, Zinc Oxide, hafnium oxide HfO in mixed solution one, are not added with₂, titanium carbide TIC, tantalum nitride TaN, Other conditions are constant.

Density is 582kg/m, and comprcssive strength 7.3Mpa, water absorption rate 13%, resistance to weathering energy 0.65 need to do external thermal insulation.

The performance indications of 1 each embodiment product of table

	Dry density kg/m	7 days comprcssive strength Mpa	28 days comprcssive strength Mpa	Water absorption rate %	Resistance to weathering energy	Combined wall thermal resistance m K/W	Dry and wet shrinks/(mm/m)
								Embodiment 1	514	7.5	8.2	7	0.56	3.4	0.22
Embodiment 2	519	7.4	8.3	7	0.54	3.4	0.20
								Embodiment 3	506	7.3	8.0	9	0.53	3.7	0.23
Embodiment 4	515	7.4	8.1	8	0.52	3.5	0.23
								Embodiment 5	503	7.3	8.0	9	0.57	3.8	0.24
Embodiment 6	504	7.3	8.0	9	0.58	3.5	0.24

The substantial amounts of silt resources in China the Yellow River and wheat stalk solid waste are utilized as can be seen from Table 1 for raw material, resource comprehensive Utilize, energy consumption is low, and high insulating effect, the good product of safety and firmness, exterior wall are no longer incubated, you can reach national Gongjian 50% occupies the energy-saving heat preserving standard for building 65%, saves the duration more than 30%.

Building seismic force from heavy and light is just little, favourable to antidetonation, compares with brick mixed building, same building, same ground Under the conditions of shake, Earthquake hazard degree differs a Seismic Design and sets up defences rank, under the conditions of identical ground, from the number of plies of the building of heavy and light Can increase, economical advantages.Light self-insulation building block density for same intensity grade building block less than 50% in embodiment, surely Qualitative height, good combination property are comprehensive to reduce construction cost more than 20%.

The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims

1. a kind of light self-insulation building block, it is characterised in that the light self-insulation building block includes following raw material：The Yellow River clay 50-55 mass parts, quartz sand silt sand 41-44 mass parts, nanometer polytetrafluoroethylcomposite 2.5-4.3 mass parts, Zinc Oxide 1.2-1.7 matter Amount part, hafnium oxide 0.3-0.7 mass parts, titanium carbide 0.8-1.0 mass parts, tantalum nitride 0.2-0.5 mass parts, glass microballoon 2.4-3.0 mass parts, one 35-42 mass parts of mixed solution, account for the additive one of one mass 2-3wt% of mixed solution and account for mixing The additive two of one mass 0.022-0.030wt% of solution；In the mixed solution one, including acrylic acid, polyvinyl alcohol, it is modified Wheat stalk and water.

2. light self-insulation building block according to claim 1, it is characterised in that the mixed solution one, wherein acrylic acid For part neutralization acrylic acid, acrylic acid degree of neutralization is 60-70%.

3. light self-insulation building block according to claim 1 and 2, it is characterised in that in the mixed solution one, wherein third Olefin(e) acid is with unneutralized acrylic acid, acrylic acid：Polyvinyl alcohol：Modified wheat straw：Water quality ratio is 20-30：4-6:6-8： 60-70。

4. according to the arbitrary described light self-insulation building block of claim 1-3, it is characterised in that the quartz sand silt sand was The quartz sand silt sand of 100 mesh sieves.

5. according to the arbitrary described light self-insulation building block of claim 1-4, it is characterised in that the additive one is bicarbonate Ammonium；

6. according to the arbitrary described light self-insulation building block of claim 1-5, it is characterised in that the system of the modified wheat straw Preparation Method is：Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat straw The sodium hydroxide solution one of stalk silty amount 15-20 times, is standing and soak for 18-20 hours, and sucking filtration casts out filtrate, remaining solid water Wash to neutrality, dry at 50-60 DEG C, obtain pretreatment wheat stalk powder；Add in pretreatment wheat stalk powder relative In the N of pretreatment wheat stalk powder 40-45 mass times, N- dimethylene Methanamides, after stirring 30-40min, continue to stir and add Enter maleic anhydride, the maleic anhydride：Pretreatment wheat stalk powder mass ratio is 0.75-0.8:1, then heat to 100-110 DEG C reacted, course of reaction is kept stirring for, after reaction 2-6 hours, product is cooled to into room temperature, filters and remove filtrate, take Remaining solid after filtration, after washing 3-4 time with water, is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw；It is described One mass concentration of sodium hydroxide solution is 6-10wt%.

7. according to the arbitrary described light self-insulation building block of claim 1-6, it is characterised in that the light self-insulation building block Preparation method is comprised the following steps：

（1）Acrylic acid is neutralized to degree of neutralization 60-70% with the sodium hydroxide solution two that mass concentration is 30%, propylene after must neutralizing Acid, it is standby;

Wheat stalk is dried, is crushed with pulverizer, took the wheat stalk powder of 120 mesh sieves, added relative to wheat stalk powder The sodium hydroxide solution one of quality 15-20 times, is standing and soak for 18-20 hours, and sucking filtration casts out filtrate, and remaining solid is washed with water To neutrality, dry at 50-60 DEG C, obtain pretreatment wheat stalk powder, then add relatively in pretreatment wheat stalk powder In the N of pretreatment wheat stalk powder 40-45 mass times, N- dimethylene Methanamides, after stirring 30-40min, continue to stir and add Enter maleic anhydride, the maleic anhydride：Pretreatment wheat stalk powder mass ratio is 0.75-0.8:1, then heat to 100-110 DEG C reacted, course of reaction is kept stirring for, after reaction 2-6 hours, product is cooled to into room temperature, filters and remove filtrate, take Remaining solid after filtration, after washing 3-4 time with water, is put at 60 DEG C of baking oven and dries, just obtain modified wheat straw, standby, One mass concentration of the sodium hydroxide solution is 6-10wt%；

The distilled water relative to polyvinyl alcohol quality 6-7 times is added in polyvinyl alcohol, being stirred and heated to 90 DEG C of 85- makes to gather After vinyl alcohol is completely dissolved, stops heating, be cooled to 15 DEG C -25 DEG C, obtain poly-vinyl alcohol solution standby；

（2）Acrylic acid, poly-vinyl alcohol solution, modified wheat straw and water after neutralizing, are uniformly mixed to obtain mixed solution one; In mixed solution one, with unneutralized acrylic acid, acrylic acid：Polyvinyl alcohol：Modified wheat straw：Water quality ratio is 20-30： 4-6:6-8：60-70；In a mold by the Yellow River clay, quartz sand silt sand, nanometer polytetrafluoroethylcomposite, Zinc Oxide, hafnium oxide, carbon Change titanium, tantalum nitride, glass microballoon with the mixed solution one by weight 50-55：41-44：2.5-4.3：1.2-1.7：0.3- 0.7：0.8-1.0：0.2-0.5：2.4-3.0：After 35-42 is sufficiently mixed, slurry mix two is made；To in slurry mix two Nitrogen is poured while being stirred vigorously displacement oxygen therein, slurry mix two 60-80 DEG C is warming up to into subsequently, after being sufficiently stirred for Additive one and additive two are sequentially added in slurry mix two, after then proceeding to stir 3-5 minutes, stops stirring, 8-10 hour curing moldings are incubated at 60-80 DEG C, then demoulding base substrate is dried 24-30h at 60 DEG C;The additive one adds Measure to account for the 2-3wt% of one mass of mixed solution, two addition of the additive is the 0.022- for accounting for one mass of mixed solution 0.030wt%；

（3）Dried base substrate is calcined, first stage calcining heat is 120-150 DEG C, calcines 3-4h, subsequently in 30min 1300 DEG C～1350 DEG C are warming up to, second stage calcining, 5～8min of calcination time；Then 300-340 is cooled in 30min DEG C, phase III calcining, calcination time 3-5h;850-880 DEG C is warming up in 30min finally, fourth stage calcining, calcining 24-30h sintering is finished, and is cooled down 24-48 hours, is obtained light self-insulation building block.

8. according to the arbitrary described light self-insulation building block of claim 1-7, it is characterised in that the additive one is bicarbonate Ammonium；

9. according to the arbitrary described light self-insulation building block of claim 1-8, it is characterised in that one addition of the additive is The 2-3wt% of one mass of mixed solution is accounted for, two addition of the additive is the 0.022- for accounting for one mass of mixed solution 0.030wt%.