CN101508822B - Novel light, flame-proof, thermal insulation foam shuttering granular material and method for producing the same - Google Patents
Novel light, flame-proof, thermal insulation foam shuttering granular material and method for producing the same Download PDFInfo
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Abstract
The invention relates to a novel light flame-retardant insulating foam shuttering particle material and a preparation method thereof. The light flame-retardant insulating foam shuttering particle material comprises the components as follows: 70-85 weight portions of urea formaldehyde foam plastic, 10-20 weight portions of cellulose solution with the concentration of 15-25 percent and 5-10 weight portions of urea formaldehyde resin adhesive solution with the concentration of 30-50 percent. A layer of hard casing can be formed on the surface of foam, so that the light flame-retardant insulatingfoam shuttering particle material has the characteristics of light weight, high flame-retardant performance, high heat-resistance temperature of about 215 DEG C to 230 DEG C, good heat preservation and insulation performance, high compressive strength, environmental protection, good size stability, low heat conductivity coefficient, good water resistance and waterproofness and in particular the strong mixing affinity with cement. The light flame-retardant insulating foam shuttering particle material is the core master batch of heat insulation material in the building material field and various fields.
Description
Technical field
The present invention relates to a kind of novel insulating foam material, especially relate to a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material and preparation method thereof.
Background technology
The polystyrene foamed plastics utilisation technology claims benzene plate utilisation technology again, and its foams state is to be the intensive various special-shaped products that are bonded together and make with benzene plate synthesis technique of particle of φ 2-φ 5 by specification.The benzene plate is widely used in all trades and professions such as outer insulation transformation of industry, construction industry, city existing building, it is the lagging material that wall thermal insulating insulation contractors technological project must be used, but this lagging material exists, and quality is soft, compressive strength is little, inflammable, heat resisting temperature is low, shortcoming such as poisonous, the starting material that it is arranged again are petrochemical by-products, its starting material source and price are subjected to having a strong impact on of oil production rate and price, so will be replaced by extensive, the cheap advanced person's of starting material heat insulating material.
The applicant is in the patent of invention of on July 27th, 2005 application " urea-formaldehyde foam plastic heat-insulating board and preparation method thereof ", the patent No.: 200510046937.3, and publication number: CN1736936, the day for announcing: on February 22nd, 2006.This urea-formaldehyde foam plastic heat-insulating board is made of according to the following number of weight ratio following component: urea-formaldehyde resin: sodium lauryl sulphate: phosphoric acid: oxalic acid: phenol: urea: magnesium chloride: water=50～75: 0.1～1.5: 0.05～0.5: 0.1～0.5: 0.01～0.15: 0.05～1: 0.05～0.5: 22～48.This urea-formaldehyde foam plastic heat-insulating board have excellent insulating thermal insulation, flame retardant resistance, heat resisting temperature height, nontoxic, production cost is low, starting material extensively and fully meet national requirements for environmental protection, and is free from environmental pollution.The applicant continues to study intensively with great concentration on this basis, urea-formaldehyde foamed plastics or warming plate waste material and tailing is reclaimed become a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material with other raw material hybrid process.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material, this novel light, fire-retardant, thermal insulation foam shuttering granular material since outside surface energy form the hard formwork of one deck, have therefore that lightweight, compressive strength height, dimensional stability are good, high flame retardant, heat resisting temperature height, thermal conductivity is low, water-fast, water resistance is good, thermal and insulating performance is strong characteristics.
Another technical problem that the present invention will solve provides a kind of method for preparing novel light, fire-retardant, thermal insulation foam shuttering granular material.
In order to solve the problem that prior art exists, the technical solution used in the present invention is:
A kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are composed of the following components:
The urea-formaldehyde foamed plastics of 70～85 weight parts, the concentration of 10～20 weight parts are 15～25% cellulose solution, and the concentration of 5～10 weight parts is 30～50% urea-formaldehyde resin sol solution.
Described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are composed of the following components:
The urea-formaldehyde foamed plastics of 80 weight parts, the concentration of 15 weight parts are 15～25% cellulose solution, and the concentration of 8 weight parts is 30～50% urea-formaldehyde resin sol solution.
Described urea-formaldehyde foamed plastics is composed of the following components:
The urea-formaldehyde resin of 50～75 weight parts, the sodium lauryl sulphate of 0.1～1.5 weight part, the phosphoric acid of 0.05～0.5 weight part, the oxalic acid of 0.1～0.5 weight part, the phenol of 0.01～0.15 weight part; 0.05 the urea of～1 weight part, the magnesium chloride of 0.05～0.5 weight part, the water of 22～48 weight parts.
Prepare the method for the described a kind of novel light of claim 1, fire-retardant, thermal insulation foam shuttering granular material, may further comprise the steps:
(1) preparation urea-formaldehyde foamed plastics:
Described urea-formaldehyde foamed plastics is composed of the following components:
The urea-formaldehyde resin of 50～75 weight parts, 0.1 the sodium lauryl sulphate of～1.5 weight parts, 0.05 the phosphoric acid of～0.5 weight part, 0.1 the oxalic acid of～0.5 weight part, 0.01 the phenol of～0.15 weight part, 0.05 the urea of～1 weight part, the magnesium chloride of 0.05～0.5 weight part, the water of 22～48 weight parts;
1. get the urea-formaldehyde resin that meets above-mentioned parts by weight, add described water weight 40%, be diluted to solution;
2. the preparation of sour whipping agent is arranged: get described water weight 29.4%, add simultaneously when heating to 30 ℃ described sodium lauryl sulphate weight 49%, phenol weight 50%, weight of urea 50%, phosphoric acid, oxalic acid and magnesium chloride, stirred 1 hour when being warming up to 70 ℃, regulating pH value is 1～2;
3. the preparation of anacidity whipping agent: get 30.6% of described water weight, add simultaneously when heating to 30 ℃ described sodium lauryl sulphate weight 51%, 50% and weight of urea of phenol weight 50%, stirred 1 hour when being warming up to 70 ℃;
4. get blisters: will have sour whipping agent and anacidity whipping agent to mix, high-speed stirring 2～5 minutes, 1400～2800 rev/mins of rotating speeds, the urea-formaldehyde resin that adds dilution, continued high-speed stirring 2～5 minutes, and blasted air with air compressor simultaneously and after the urea-formaldehyde foam that generates is even continuously, make it to flow in the extrusion equipment;
5. extrusion molding: the extrusion equipment internal pressure is 50kg/cm
2～100kg/cm
2, temperature is 40～60 ℃, the time is 1～2 hour, gets final product an extrusion molding;
6. dry: the foams after the extrusion molding are put into kiln, store a large amount of steam in the kiln, humidity is 70～85%, and temperature is at 50～70 ℃, and drying time is 6～10 hours, promptly can be made into urea-formaldehyde foamed plastics;
(2) urea-formaldehyde foamed plastics is made the particle that specification is ф 2～ф 10 with the crushed particles machine, the urea-formaldehyde foamed plastics particle of getting described weight part then drops into rotation stirring in the 1st the particle synthesizer, inject hot blast and hot gas simultaneously, make particle suspension when stirring, the concentration that this moment, spraying type was injected described weight part is the cellulose solution of 15-25%, the synthetic synthetic dryer of the 1st particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued when making foam beads become round gradually dry 5～10 minutes, and entered then in the 2nd the particle synthesizer;
Inject hot blast and hot gas in the 2nd the particle synthesizer that (3) at this moment will rotate, make particle suspension when stirring, this moment, the spraying type concentration of injecting described weight part was the urea-formaldehyde resin sol solution of 30-50% again, the synthetic synthetic dryer of the 2nd particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued dry 5～10 minutes when making foam beads become circle, enter synthetic formwork particle screen selecting machine then, carry out sorting, packing according to granular size.
Advantage and effect that the present invention had are:
1, a kind of novel light of the present invention, fire-retardant, thermal insulation foam shuttering granular material be owing to can form one deck hard shell at foam surface, therefore have lightweight, high flame retardant, heat resisting temperature tall and big about 215 ℃-230 ℃, thermal and insulating performance is good, compressive strength is high, environmental protection, dimensional stability is good, thermal conductivity is low, water-fast, water resistance good, characteristics strong with cement mixing avidity particularly.So be the core masterbatch of building materials field and all trades and professions lagging material.
2, a kind of novel light of the present invention, fire-retardant, thermal insulation foam shuttering granular material can be by colding pressing or the synthetic various types of heat preservation plate materials of hot-press method die casting, profiled material, but the also members such as heat insulation tile of insulating brick, heat preserving hollow brick and all walling units of one-step die casting all size and various pipeline, all size simultaneously, it can also replace other materials such as some dalles.
3, the present invention is nonpoisonous and tasteless pollution-free, the compressive strength height, and heat insulating coefficient is good, good flame resistance, machine-shaping is simple, and cost of material is cheap.
4, the present invention, saves cost, saves the energy, and eliminated secondary pollution, environmental protection as main raw material(s) with the waste material of urea-formaldehyde foamed plastics and warming plate and tailing.
5, the present invention has wide range of applications, this shuttering granular material can be made the heat preservation plate material of all and the packaging vibration-damping material of various article, because this formwork particle and cement avidity are strong, so can make all required cement products, can make the insulation and the lagging material of various device, can be used as the insulation and the lagging material in vehicle, boats and ships and each field, can be used as sound-proof material and make various insulating boards, it is the masterbatch of all lagging materials thus.
Below be to adopt normal experiment method and detection method that performance of the present invention is experimentized and detect, the result is as follows:
| Sequence number | Interventions Requested | Measure unit | Assay |
| 1? | Density | g/cm 3 | 0.3? |
| 2? | Compressive strength | MPa? | 4.5? |
| 3? | Tensile strength | MPa? | 2.0? |
| 4? | Shock strength | Kj/m 2 | 2.0? |
| 5? | Maximum operation (service) temperature | ℃? | 100-220℃? |
| 6? | Thermal conductivity | mW/(m.k)? | 38? |
| 7? | Oxygen index | ％? | 33.6? |
| 5? | Water-absorbent (24h) | Kg/m 2 | ≤0.3? |
| 6? | Shrinking percentage (%) | ? | 100℃24h≤1 220℃24h≤0.5? |
Embodiment
The invention will be further described below by embodiment:
Embodiment 1:
(1) preparation urea-formaldehyde foamed plastics:
Described urea-formaldehyde foamed plastics is made up of by following parts by weight following component:
The urea-formaldehyde resin of 50 weight parts, the sodium lauryl sulphate of 1.5 weight parts, the phosphoric acid of 0.5 weight part, the oxalic acid of 0.5 weight part, the phenol of 0.15 weight part, the urea of 1 weight, the magnesium chloride of 0.5 weight part, the water of 48 weight parts.The umber that wherein is used for preparing the water that sour whipping agent is arranged is that 14.112 parts, the umber of sodium lauryl sulphate are that 0.735 part, the umber of phenol are that 0.075 part, the umber of urea are 0.5 part.The umber that wherein is used for preparing the water of anacidity whipping agent is that 14.688 parts, the umber of sodium lauryl sulphate are that 0.765 part, the umber of phenol are that 0.075 part, the umber of urea are 0.5 part, and the umber that is used for diluting the water of urea-formaldehyde resin is 19.2 parts.The urea-formaldehyde resin solution that uses among this preparation method must be the environment protection type urea formaldehyde resin solution that formaldehyde content meets national standard.
1. get the urea-formaldehyde resin of 50kg, add the water of 19.2kg, be diluted to solution;
2. the preparation of sour whipping agent is arranged: the water of getting 14.112kg, add the sodium lauryl sulphate of 0.735kg, the phenol of 0.075kg, the urea of 0.5kg, phosphoric acid, 0.5kg oxalic acid and the 0.5kg magnesium chloride of 0.5kg when heating simultaneously to 30 ℃, stirred 1 hour when being warming up to 70 ℃, regulating pH value is 1～2;
3. the preparation of anacidity whipping agent: get the water of 14.688kg, add the sodium lauryl sulphate of 0.765kg, the phenol of 0.075kg and the urea of 0.5kg when heating simultaneously, stirred 1 hour when being warming up to 70 ℃ to 30 ℃;
4. get blisters: will have sour whipping agent and anacidity whipping agent to mix, high-speed stirring 2～5 minutes, 1400～2800 rev/mins of rotating speeds, the urea-formaldehyde resin that adds dilution, continued high-speed stirring 2～5 minutes, and blasted air with air compressor simultaneously and after the urea-formaldehyde foam that generates is even continuously, make it to flow in the extrusion equipment;
5. extrusion molding: the extrusion equipment internal pressure is 50kg/cm
2～100kg/cm
2, temperature is 40～60 ℃, the time is 1～2 hour, gets final product an extrusion molding;
6. dry: the foams after the extrusion molding are put into kiln, store a large amount of steam in the kiln, humidity is 70～85%, and temperature is at 50～70 ℃, and drying time is 6～10 hours, promptly can be made into urea-formaldehyde foamed plastics.
(2) a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following parts by weight following component:
The urea-formaldehyde foamed plastics of 70 weight parts, the concentration of 20 weight parts are 15% cellulose solution, and the concentration of 10 weight parts is 50% DY102 powdery urea resin sol solution.
The urea-formaldehyde foamed plastics that makes in the above-mentioned steps is made the particle that specification is ф 2～ф 10 with the crushed particles machine, get the urea-formaldehyde foamed plastics particle of 70kg then and put into the 1st particle synthesizer rotation stirring, inject hot blast and hot gas simultaneously, make particle suspension when stirring, the concentration of spraying type injection this moment 20kg is 15% cellulose solution, employed cellulose solution is a Vltra tears HPMC solution in the present embodiment, the synthetic synthetic dryer of the 1st particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued when making foam beads become round gradually dry 5～10 minutes, and entered then in the 2nd the particle synthesizer;
The 2nd the particle synthesizer that (3) at this moment will rotate injects hot blast and hot gas, make particle suspension when stirring, this moment, the spraying type concentration of injecting 10kg was 50% DY102 powdery urea resin sol solution again, the synthetic synthetic dryer of the 2nd particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued dry 5～10 minutes when making foam beads become circle, and then enter synthetic formwork particle screen selecting machine, carry out sorting, packing according to the foam beads size.Employed urea-formaldehyde resin sol solution is the big former board DY102 powdery urea resin sol solution of being produced by open country, Guangzhou Industrial Co., Ltd. among the present invention.
Embodiment 2:
(1) preparation urea-formaldehyde foamed plastics:
Described urea-formaldehyde foamed plastics is made up of by following weight following component:
The urea-formaldehyde resin of 75kg, the sodium lauryl sulphate of 0.1kg, the phosphoric acid of 0.05kg, the oxalic acid of 0.1kg, the phenol of 0.01kg, the urea of 0.05kg, the magnesium chloride of 0.05kg, the water of 22kg.The weight that wherein is used for preparing the water that sour whipping agent is arranged is that the weight of 6.468kg, sodium lauryl sulphate is that the weight of 0.049kg, phenol is that the weight of 0.005kg, urea is 0.025kg.The weight that wherein is used for preparing the water of anacidity whipping agent is that the weight of 6.732kg, sodium lauryl sulphate is that the weight of 0.051kg, phenol is that the weight of 0.005kg, urea is 0.025kg, and the weight that is used for diluting the water of urea-formaldehyde resin is 8.8kg.
(2) described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following weight following component:
The urea-formaldehyde foamed plastics of 85kg, the concentration of 10kg are 20% Gonak, and the concentration of 5kg is 30% DY102 powdery urea resin sol solution.
The preparation method of the urea-formaldehyde foamed plastics described in the present embodiment, a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material is with embodiment 1.
Embodiment 3:
(1) described urea-formaldehyde foamed plastics is made up of by following weight following component:
The urea-formaldehyde resin of 55kg, the sodium lauryl sulphate of 0.3kg, the phosphoric acid of 0.08kg, the oxalic acid of 0.2kg, the phenol of 0.03kg, the urea of 0.1kg, the magnesium chloride of 0.08kg, the water of 32kg.The weight that wherein is used for preparing the water that sour whipping agent is arranged is that the weight of 9.408kg, sodium lauryl sulphate is that the weight of 0.147kg, phenol is that the weight of 0.015kg, urea is 0.05kg.The weight that wherein is used for preparing the water of anacidity whipping agent is that the weight of 9.792kg, sodium lauryl sulphate is that the weight of 0.153kg, phenol is that the weight of 0.015kg, urea is 0.05kg, and the weight that is used for diluting the water of urea-formaldehyde resin is 12.8kg.
(2) described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following weight following component:
The urea-formaldehyde foamed plastics of 80kg, the concentration of 15kg are 25% Gonak, and the concentration of 8kg is 35% DY102 powdery urea resin sol solution.
The preparation method of the urea-formaldehyde foamed plastics described in the present embodiment, a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material is with embodiment 1.
Embodiment 4:
(1) described urea-formaldehyde foamed plastics is made up of by following weight following component:
The urea-formaldehyde resin of 55kg, the sodium lauryl sulphate of 0.3kg, the phosphoric acid of 0.08kg, the oxalic acid of 0.2kg, the phenol of 0.03kg, the urea of 0.1kg, the magnesium chloride of 0.08kg, the water of 32kg.The weight that wherein is used for preparing the water that sour whipping agent is arranged is that the weight of 9.408kg, sodium lauryl sulphate is that the weight of 0.147kg, phenol is that the weight of 0.015kg, urea is 0.05kg.The weight that wherein is used for preparing the water of anacidity whipping agent is that the weight of 9.792kg, sodium lauryl sulphate is that the weight of 0.153kg, phenol is that the weight of 0.015kg, urea is 0.05kg, and the weight that is used for diluting the water of urea-formaldehyde resin is 12.8kg.
(2) described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following weight following component:
The urea-formaldehyde foamed plastics of 75kg, the concentration of 18kg are 20% Gonak, and the concentration of 9kg is 50% DY102 powdery urea resin sol solution.
The preparation method of the urea-formaldehyde foamed plastics described in the present embodiment, a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material is with embodiment 1.
Embodiment 5:
(1) described urea-formaldehyde foamed plastics is made up of by following parts by weight following component:
The urea-formaldehyde resin of 75kg, the sodium lauryl sulphate of 0.1kg, the phosphoric acid of 0.05kg, the oxalic acid of 0.1kg, the phenol of 0.01kg, the urea of 0.05kg, the magnesium chloride of 0.05kg, the water of 22kg.The weight that wherein is used for preparing the water that sour whipping agent is arranged is that the weight of 6.468kg, sodium lauryl sulphate is that the weight of 0.049kg, phenol is that the weight of 0.005kg, urea is 0.025kg.The weight that wherein is used for preparing the water of anacidity whipping agent is that the weight of 6.732kg, sodium lauryl sulphate is that the weight of 0.051kg, phenol is that the weight of 0.005kg, urea is 0.025kg, and the weight that is used for diluting the water of urea-formaldehyde resin is 8.8kg.
(2) described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following weight following component:
The urea-formaldehyde foamed plastics of 82kg, the concentration of 13kg are 20% Gonak, and the concentration of 7kg is 40% DY102 powdery urea resin sol solution.
The preparation method of the urea-formaldehyde foamed plastics described in the present embodiment, a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material is with embodiment 1.
Embodiment 6:
(1) described urea-formaldehyde foamed plastics is made up of by following weight following component:
The urea-formaldehyde resin of 50kg, the sodium lauryl sulphate of 1.5kg, the phosphoric acid of 0.5kg, the oxalic acid of 0.5kg, the phenol of 0.15kg, the urea of 1kg, the magnesium chloride of 0.5kg, the water of 48kg.The weight that wherein is used for preparing the water that sour whipping agent is arranged is that the weight of 14.112kg, sodium lauryl sulphate is that the weight of 0.735kg, phenol is that the weight of 0.075kg, urea is 0.5kg.The weight that wherein is used for preparing the water of anacidity whipping agent is that the weight of 14.688kg, sodium lauryl sulphate is that the weight of 0.765kg, phenol is that the weight of 0.075kg, urea is 0.5kg, and the weight that is used for diluting the water of urea-formaldehyde resin is 19.2kg.
(2) described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following weight following component: the urea-formaldehyde foamed plastics of 73kg, the concentration of 16kg is 20% Gonak, and the concentration of 6kg is 50% urea-formaldehyde resin sol solution.
The preparation method of the urea-formaldehyde foamed plastics described in the present embodiment, a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material is with embodiment 1.
Embodiment 7:
(1) described urea-formaldehyde foamed plastics is made up of by following weight following component:
The urea-formaldehyde resin of 50kg, the sodium lauryl sulphate of 1.5kg, the phosphoric acid of 0.5kg, the oxalic acid of 0.5kg, the phenol of 0.15kg, the urea of 1kg, the magnesium chloride of 0.5kg, the water of 48kg.The weight that wherein is used for preparing the water that sour whipping agent is arranged is that the weight of 14.112kg, sodium lauryl sulphate is that the weight of 0.735kg, phenol is that the weight of 0.075kg, urea is 0.5kg.The weight that wherein is used for preparing the water of anacidity whipping agent is that the weight of 14.688kg, sodium lauryl sulphate is that the weight of 0.765kg, phenol is that the weight of 0.075kg, urea is 0.5kg, and the weight that is used for diluting the water of urea-formaldehyde resin is 19.2kg.
(2) described a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material are made up of by following weight following component: the urea-formaldehyde foamed plastics of 73kg, the concentration of 16kg is 20% ether of cellulose solution, and the concentration of 6kg is 50% DY102 powdery urea resin sol solution.Employed ether of cellulose solution is the methylcellulose gum ethereal solution that Zhejiang Province Zhongwei Medicine Co., Ltd produces in the present embodiment.
The preparation method of the urea-formaldehyde foamed plastics described in the present embodiment, a kind of novel light, fire-retardant, thermal insulation foam shuttering granular material is with embodiment 1.
Claims (3)
1. a lightweight, fire-retardant, thermal insulation foam shuttering granular material is characterized in that being made by following raw material:
The urea-formaldehyde foamed plastics of 70～85 weight parts, the concentration of 10～20 weight parts are 15～25% cellulose solution, and the concentration of 5～10 weight parts is 30～50% urea-formaldehyde resin sol solution;
Its preparation method may further comprise the steps:
(1) preparation urea-formaldehyde foamed plastics:
Described urea-formaldehyde foamed plastics is made by following raw material:
The urea-formaldehyde resin of 50～75 weight parts, 0.1 the sodium lauryl sulphate of～1.5 weight parts, 0.05 the phosphoric acid of～0.5 weight part, 0.1 the oxalic acid of～0.5 weight part, 0.01 the phenol of～0.15 weight part, 0.05 the urea of～1 weight part, the magnesium chloride of 0.05～0.5 weight part, the water of 22～48 weight parts;
1. get the urea-formaldehyde resin that meets above-mentioned parts by weight, add described water weight 40%, be diluted to solution;
2. the preparation of sour whipping agent is arranged: get described water weight 29.4%, add simultaneously when heating to 30 ℃ described sodium lauryl sulphate weight 49%, phenol weight 50%, weight of urea 50%, phosphoric acid, oxalic acid and magnesium chloride, stirred 1 hour when being warming up to 70 ℃, regulating the pH value is 1～2;
3. the preparation of anacidity whipping agent: get 30.6% of described water weight, add simultaneously when heating to 30 ℃ described sodium lauryl sulphate weight 51%, 50% and weight of urea of phenol weight 50%, stirred 1 hour when being warming up to 70 ℃;
4. get blisters: will have sour whipping agent and anacidity whipping agent to mix, high-speed stirring 2～5 minutes, 1400～2800 rev/mins of rotating speeds, the urea-formaldehyde resin that adds dilution, continued high-speed stirring 2～5 minutes, and blasted air with air compressor simultaneously and after the urea-formaldehyde foam that generates is even continuously, make it to flow in the extrusion equipment;
5. extrusion molding: the extrusion equipment internal pressure is 50kg/cm
2～100kg/cm
2, temperature is 40～60 ℃, the time is 1～2 hour, gets final product an extrusion molding;
6. dry: the foams after the extrusion molding are put into kiln, store a large amount of steam in the kiln, humidity is 70～85%, and temperature is at 50～70 ℃, and drying time is 6～10 hours, promptly can be made into urea-formaldehyde foamed plastics;
(2) urea-formaldehyde foamed plastics is made the particle that specification is φ 2～φ 10 with the crushed particles machine, the urea-formaldehyde foamed plastics particle of getting described weight part then drops into rotation stirring in the 1st the particle synthesizer, inject hot blast and hot gas simultaneously, make particle suspension when stirring, the concentration that this moment, spraying type was injected described weight part is the cellulose solution of 15-25%, the synthetic synthetic dryer of the 1st particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued when making foam beads become round gradually dry 5～10 minutes, and entered then in the 2nd the particle synthesizer;
Inject hot blast and hot gas in the 2nd the particle synthesizer that (3) at this moment will rotate, make particle suspension when stirring, this moment, the spraying type concentration of injecting described weight part was the urea-formaldehyde resin sol solution of 30-50% again, the synthetic synthetic dryer of the 2nd particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued dry 5～10 minutes when making foam beads become circle, enter synthetic formwork particle screen selecting machine then, carry out sorting, packing according to granular size.
2. a kind of lightweight according to claim 1, fire-retardant, thermal insulation foam shuttering granular material is characterized in that being made by following raw material:
The urea-formaldehyde foamed plastics of 80 weight parts, the concentration of 15 weight parts are 15～25% cellulose solution, and the concentration of 8 weight parts is the urea-formaldehyde resin sol solution of 30-50%.
3. prepare the method for the described a kind of lightweight of claim 1, fire-retardant, thermal insulation foam shuttering granular material, it is characterized in that may further comprise the steps:
(1) preparation urea-formaldehyde foamed plastics:
Described urea-formaldehyde foamed plastics is made by following raw material:
The urea-formaldehyde resin of 50～75 weight parts, 0.1 the sodium lauryl sulphate of～1.5 weight parts, 0.05 the phosphoric acid of～0.5 weight part, 0.1 the oxalic acid of～0.5 weight part, 0.01 the phenol of～0.15 weight part, 0.05 the urea of～1 weight part, the magnesium chloride of 0.05～0.5 weight part, the water of 22～48 weight parts;
1. get the urea-formaldehyde resin that meets above-mentioned parts by weight, add described water weight 40%, be diluted to solution;
2. the preparation of sour whipping agent is arranged: get described water weight 29.4%, add simultaneously when heating to 30 ℃ described sodium lauryl sulphate weight 49%, phenol weight 50%, weight of urea 50%, phosphoric acid, oxalic acid and magnesium chloride, stirred 1 hour when being warming up to 70 ℃, regulating the pH value is 1～2;
3. the preparation of anacidity whipping agent: get 30.6% of described water weight, add simultaneously when heating to 30 ℃ described sodium lauryl sulphate weight 51%, 50% and weight of urea of phenol weight 50%, stirred 1 hour when being warming up to 70 ℃;
4. get blisters: will have sour whipping agent and anacidity whipping agent to mix, high-speed stirring 2～5 minutes, 1400～2800 rev/mins of rotating speeds, the urea-formaldehyde resin that adds dilution, continued high-speed stirring 2～5 minutes, and blasted air with air compressor simultaneously and after the urea-formaldehyde foam that generates is even continuously, make it to flow in the extrusion equipment;
5. extrusion molding: the extrusion equipment internal pressure is 50kg/cm
2～100kg/cm
2, temperature is 40～60 ℃, the time is 1～2 hour, gets final product an extrusion molding;
6. dry: the foams after the extrusion molding are put into kiln, store a large amount of steam in the kiln, humidity is 70～85%, and temperature is at 50～70 ℃, and drying time is 6～10 hours, promptly can be made into urea-formaldehyde foamed plastics;
(2) urea-formaldehyde foamed plastics is made the particle that specification is φ 2～φ 10 with the crushed particles machine, the urea-formaldehyde foamed plastics particle of getting described weight part then drops into rotation stirring in the 1st the particle synthesizer, inject hot blast and hot gas simultaneously, make particle suspension when stirring, the concentration that this moment, spraying type was injected described weight part is the cellulose solution of 15-25%, the synthetic synthetic dryer of the 1st particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued when making foam beads become round gradually dry 5～10 minutes, and entered then in the 2nd the particle synthesizer;
Inject hot blast and hot gas in the 2nd the particle synthesizer that (3) at this moment will rotate, make particle suspension when stirring, this moment, the spraying type concentration of injecting described weight part was the urea-formaldehyde resin sol solution of 30-50% again, the synthetic synthetic dryer of the 2nd particle that enters after 5～10 minutes, stop to inject hot gas this moment, continue to inject hot blast, continued dry 5～10 minutes when making foam beads become circle, enter synthetic formwork particle screen selecting machine then, carry out sorting, packing according to granular size.
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| CN200910010714XA CN101508822B (en) | 2009-03-17 | 2009-03-17 | Novel light, flame-proof, thermal insulation foam shuttering granular material and method for producing the same |
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| CN200910010714XA CN101508822B (en) | 2009-03-17 | 2009-03-17 | Novel light, flame-proof, thermal insulation foam shuttering granular material and method for producing the same |
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| CN101508822B true CN101508822B (en) | 2010-12-22 |
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