CN103408925B - Rigid foamed plastic - Google Patents
Rigid foamed plastic Download PDFInfo
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- CN103408925B CN103408925B CN201310386973.9A CN201310386973A CN103408925B CN 103408925 B CN103408925 B CN 103408925B CN 201310386973 A CN201310386973 A CN 201310386973A CN 103408925 B CN103408925 B CN 103408925B
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Abstract
The invention discloses a rigid foamed plastic which comprises a component A, a component B and filling materials, wherein the component A comprises polyether polyols, a foam stabilizer, a catalyst, a foaming agent and a cross-linking agent; the component B comprises isocyanate; the filling materials comprise inorganic powder filling materials, plant powder filling materials and fiber filling materials. By utilizing the characteristics of the reaction molding of rigid foams, the rigid foams are bonded with the inorganic powder filling materials, the plant powder filling materials and the fiber filling materials, so that the performance of the rigid foams is enhanced by the matching combination of three types of the filling materials. Thus, the synergistic effect for improving the performance of the rigid foamed plastic is exerted. Therefore, the rigid foamed plastic is high in strength and good in dimensional stability; the problems of expansion/shrinking and deformation of the rigid foamed plastic during a storage process are solved. As a result, the holding capacity of the rigid foamed plastic to insertion components such as nails, pins and the like is improved; the manufacturing cost is lowered.
Description
Technical field
The present invention relates to foam technology field, particularly relate to a kind of rigid foam.
Background technology
The correlated performance of improvement and lifting rigid foam has a variety of side, and publication number is pass through in the patent of invention of CN 102030879B, to polyether polyol component dehydration, to reduce the physicals that its water content improves goods, publication number is that the patent of invention of CN1506395 is hard bubbled with lamella silicate modified high flame-retardant polyurethane, be scattered in combined polyether by layered nano silicate and form intercalation mixture, goods are obtained by mixing again with isocyanic ester, publication number is the patent of invention inorganic powder modification hard-foam polyurethane material of CN102898607A, utilize and change the different mode of adding liquid material to of inorganic powder, hybrid reaction material obtains goods, publication number is that the patent of invention of CN102719086A selects graphite and methyl-phosphoric acid dimethyl ester to improve the flame retardant properties of hard polyurethane foam, goods are formed by the combined polyether of preparation containing graphite and methyl-phosphoric acid dimethyl ester and isocyanic ester hybrid reaction, publication number is the particle modified halogen-free flame-retardant hard polyurethane foam of patent of invention surface modification inorganic nano modification of CN101475741A, first prepare inorganic nano-particle, be configured to combined polyether composition, mix with isocyanic ester again, injection moulding forms goods, publication number is the patent of invention Wood powder reinforced polyurethane wood-imitation material of CN101724255A, first be scattered in combined polyether by wood powder, foamed material is mixed to form again with isocyanic ester, injection moulding and goods, publication number is that the patent of invention of CN102408535A mentions the rigid urethane foam that vegetable fibre strengthens, and prepares material by mix and blend one step process while of combined polyether, isocyanic ester and carbon fiber, publication number be the patent of invention wire diameter of CN102101942A be less than 10 μm PAN-based carbon fiber silk strengthen hard polyurethane foam material, be first scattered in combined polyether by carbon fiber, then with isocyanic ester mixed injection molding and goods.
The combined polyether only using polyether glycol, suds-stabilizing agent, catalyzer, whipping agent to form at the improved performance field Recipe that hard bubbles of existing patent applied for or mix with the filler of a type.Filler used as the component that a kind of add-on improving polyurethane product performance is very little in the past, and its goods mainly utilize the performance of polyurethane material; And existing filler enhancement type is hard bubbled, goods are mainly used in the field such as building heat preservation, furniture, to the size of goods and non-deformability precision prescribed low.These its effect promotings of way promoting product properties from single angle are limited, the synergy of material can not be played, that improves product properties has certain limitation, be not suitable for especially and manufacture for requiring that dimensioned precision is high, standing storage goods do not produce micro-deformation or the goods of the strong special dimension of ability of holding with a firm grip to inserts such as nail, pins.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of rigid foam, be intended to solve current rigid foam performance and can not meet high precision dimensioned and require and the problem of ability that nail, pin are held with a firm grip.
Technical scheme of the present invention is as follows:
A kind of rigid foam, wherein, described rigid foam is made up of component A, B component and filler;
Described component A comprises polyether glycol, suds-stabilizing agent, catalyzer, whipping agent, linking agent;
Described B component comprises isocyanic ester;
Described filler comprises inorganic powder filler, plant powder class filler, fiber-like filler.
Described rigid foam, wherein, each composition of described component A is by weight:
Polyether glycol 60-95 part;
Suds-stabilizing agent 1-5 part;
Catalyzer 1-5 part;
Whipping agent 1-20 part;
Linking agent 1-10 part.
Described rigid foam, wherein, in described B component, the consumption of isocyanic ester is that 0.9-1.5 uses by isocyanate index, is 80-180 part by weight.
Described rigid foam, wherein, each composition of described filler is by weight:
Inorganic powder filler 30-80 part;
Plant powder class filler 5-30 part;
Fiber-like filler 1-30 part.
Described rigid foam, wherein, described polyether glycol is made up of one or more polyoxypropylene polyols, the polyoxypropylene polyol that described polyoxypropylene polyol is is initiator with sorbyl alcohol, sucrose, propylene glycol, TriMethylolPropane(TMP), quadrol, tetramethylolmethane, Xylitol, diethylenetriamine, glycerine, or the aromatic series or the heterocycle system polyoxypropylene polyol that take dihydroxyphenyl propane, bisphenol S, three (2-hydroxyethyl) chlorinated isocyanurates, tolylene diamine, phenol-formaldehyde condensate, aniline formaldehyde condensate thing as initiator;
Described suds-stabilizing agent is silicone tensio-active agent;
Described catalyzer is methylene radical diethylenetriamine, N, N-dimethylcyclohexylamine, dimethyl ethylene glycol amine, triethylenediamine, three (dimethylamino-propyl) Hexahydrotriazine, 2, one or more in 4,6-tri-(dimethylamino methyl) phenol, isocaprylic acid potassium, catalyst for trimerization TMR series.
Described whipping agent is lower boiling Hydrochlorofluorocarbons class whipping agent, pentane class whipping agent or hydrogen fluorine hydrocarbon blowing agents.
Described rigid foam, wherein, described isocyanic ester is one or more in the modifier of aliphatic diisocyanate, alicyclic diisocyanate, tolylene diisocyanate, diphenylmethanediisocyanate, polymethylene multi-phenenyl isocyanate or above-mentioned substance.
Described rigid foam, wherein, described inorganic powder filler is one or more in calcium carbonate, carbon black, silicon-dioxide, titanium dioxide, calcium hydroxide, magnesium hydroxide, aluminium hydroxide, polynite, mica powder, talcum powder, barium sulfate, diatomite, kaolin, graphite;
Described plant powder class filler is one or more in wood powder, bamboo powder, plant straw powder fragility powder;
Described fiber-like filler is one or more in glass fibre, mineral fibre, the natural fiber of cut-out, carbon fiber, tynex, trevira, boron fibre, polymer fiber.
Described rigid foam, wherein, the granularity of described inorganic powder filler is 200-5000 order, and described plant powder class filler is 40-250 order, and the length of described fiber-like filler is 1-100 mm, and diameter is not more than 30 μm.
Described rigid foam, wherein, the material moisture content of described inorganic powder filler, plant powder class filler is less than 1%.
Beneficial effect: the invention provides a kind of rigid foam, utilize the feature that hard polyurethane foam reacts shaping, bonding inorganic powder filler, plant powder class material and fiber-like filler, the performance of hard polyurethane foam is strengthened by three kinds of filling mixture ratio combinations, play the synergy to improving product properties, make that plastics intensity is high, good stability of the dimension, eliminate breathing and problem on deformation that storage process occurs, improve the hold ability of goods to nail, pin, and reduce manufacturing cost.
Accompanying drawing explanation
Shown in Fig. 1 is the method flow diagram utilizing rigid foam of the present invention to prepare goods.
Embodiment
The invention provides a kind of rigid foam, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of rigid foam, wherein, described rigid foam is made up of component A, B component and filler.
Described component A comprises polyether glycol, suds-stabilizing agent, catalyzer, whipping agent, linking agent.
Described polyether glycol is made up of one or more polyoxypropylene polyols, the polyoxypropylene polyol that described polyoxypropylene polyol is is initiator with sorbyl alcohol, sucrose, propylene glycol, TriMethylolPropane(TMP), quadrol, tetramethylolmethane, Xylitol, diethylenetriamine, glycerine, or the aromatic series or the heterocycle system polyoxypropylene polyol that take dihydroxyphenyl propane, bisphenol S, three (2-hydroxyethyl) chlorinated isocyanurates, tolylene diamine, phenol-formaldehyde condensate, aniline formaldehyde condensate thing as initiator.Polyether glycol can processed further, makes water-content be less than the water content of the polyether glycol of commercially available target.
Described suds-stabilizing agent can reduce the surface tension of urethane raw mixture, be raised up between the maturation period at foam, prevent the thermodynamics unstable state of foam from occurring by surface tension, described suds-stabilizing agent adopts silicone tensio-active agent, and it can play good foam stabilization effect.
Described catalyzer can regulate many competing reaction courses and balance, promote the speed of response of the main reaction of design, slow down or suppress the generation of side reaction and carry out, obtain the designing material of best molecular structure, catalyzer of the present invention chooses tertiary amine catalyst or alkyl metal cpd, concrete, described catalyzer is methylene radical diethylenetriamine, N, N-dimethylcyclohexylamine, dimethyl ethylene glycol amine, triethylenediamine, three (dimethylamino-propyl) Hexahydrotriazine, 2, 4, 6-tri-(dimethylamino methyl) phenol, isocaprylic acid potassium, one or more in catalyst for trimerization TMR series.
Described whipping agent refers to the material that a class can make to be in the rubber of liquid within the scope of certain viscosity or plastic state, plastics are in microvoid structure.Be divided into pneumatogen and chemical foaming agent, pneumatogen utilizes the change of its physical condition in certain temperature range and produces gas, and chemical foaming agent produces one or more gases because of chemical transformation in foaming process, thus make polymer foaming.Whipping agent of the present invention is lower boiling Hydrochlorofluorocarbons class whipping agent, pentane class whipping agent or hydrogen fluorine hydrocarbon blowing agents.
Described linking agent refers to the compound that molecular chain can be impelled to extend, expand.The linking agent that the present invention uses comprises outside the low molecular compound of the difunctionality base that molecular chain can be made to carry out expanding, and also comprises the low molecular compound that the functionality of chain-like molecular structure generation Branching and cross-linking can be made to be greater than 2 simultaneously.
Described B component comprises isocyanic ester, and isocyanate compound is the compound containing-N=C=O unit structure in molecular structure, and its general structure is R-(NCO) n, R is alkyl, aryl, alicyclic radical etc., n=1,2,3 ... integer.Described isocyanic ester is one or more in the modifier of aliphatic diisocyanate, alicyclic diisocyanate, tolylene diisocyanate, diphenylmethanediisocyanate, polymethylene multi-phenenyl isocyanate or above-mentioned substance.
Filler described in the present invention comprises inorganic powder filler, plant powder class filler, fiber-like filler.Described inorganic powder filler is the inorganic non-metallic material that synthetic or natural mineral class raw material exist with thinner powder state through mechanical workout.Be specially in calcium carbonate, carbon black, silicon-dioxide, titanium dioxide, calcium hydroxide, magnesium hydroxide, aluminium hydroxide, polynite, mica powder, talcum powder, barium sulfate, diatomite, kaolin, graphite one or more, the granularity of described inorganic powder filler is 200-5000 order.
Described plant powder class filler is the root of plant, stem, leaf form powdery substance through mechanical system process, is specially one or more in wood powder, bamboo powder, plant straw powder fragility powder.Described plant powder class filler is 40-250 order.
Described fiber-like filler refers to that polymkeric substance forms length diameter group more than thousands of times and have certain snappiness and powerful very thin material greatly after certain processing (traction, stretching, sizing etc.).The fiber-like filler that the present invention specifically uses is glass fibre, in mineral fibre, the natural fiber of cut-out, carbon fiber, tynex, trevira, boron fibre, polymer fiber one or more.The length of described fiber-like filler is 1-100 mm, and diameter is not more than 30 μm.
Described inorganic powder filler can improve the swell-shrinking property of polyurethane product, improve its physical strength, plant powder class filler can improve the snappiness of polyurethane product, make it have and well hold nail ability, firmly can hold with a firm grip and insert the web member such as nail, pin wherein and do not make it loosen, fiber-like filler can improve the dimensional stability of polyurethane product, makes it in long storage process, not produce warping phenomenon, and that also can improve goods holds nail ability simultaneously.
In preferred embodiment, fiber-like filler can carry out surface treatment, and its process is at fiber surface coated surface treatment agent, and surface treatment agent comprises treating compound and a series of coupling agent and auxiliary agent.Coupling agent can form a good adhesive interface between fiber and matrix resin, thus the cohesive strength both effectively improving.
In addition, described inorganic powder filler, plant powder class filler carry out processed before use, namely dewater under 90-150 DEG C of condition, make material moisture content be less than 1%.
The proportioning content of each component of rigid foam of the present invention is, each composition of described component A is by weight:
Polyether glycol 60-95 part;
Suds-stabilizing agent 1-5 part;
Catalyzer 1-5 part;
Whipping agent 1-20 part;
Linking agent 1-10 part.
In described B component, the consumption of isocyanic ester is that 0.9-1.5 uses by isocyanate index, is 80-180 part by weight.
Each composition of described filler is by weight:
Inorganic powder filler 30-80 part;
Plant powder class filler 5-30 part;
Fiber-like filler 1-30 part.
Component A is formed by polyether glycol 60-95 part, suds-stabilizing agent 1-5 part, catalyzer 1-5 part, whipping agent 1-20 part, the mixing of linking agent 1-10 part, with B component liquid material 80-180 part, the component C of compounded mix is formed with plant powder class filler 5-30 part, inorganic powder filler 30-80 part and fiber-like filler 1-30 part, fully mix, mechanically or manual mode of building mixture is injected mould, under 30-150 DEG C of die temperature condition, compacting 10-180min foaming, the demoulding, finally obtains the rigid foam of required modification.
As shown in Figure 1 be the method flow diagram utilizing rigid foam of the present invention to prepare board product.In preparation process, by the different hybrid mode of inorganic powder filler, plant powder class filler, fiber-like filler, combined polyether component, isocyanate component, different foamed material preparation methods can be obtained.The different preparation method selectable hybrid mode of component (in Fig. 1, dotted arrow represents be) embodied in Fig. 1 is set forth below by embodiment.
Embodiment 1
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, sorbeth polyvalent alcohol (commercially available) 30 parts, propylene glycol polyether polyol (commercially available) 7 parts, 2.5 parts, silicane tensio-active agent (commercially available), N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine (A33) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride (141B) 5 parts composition combined polyether component A 100 parts, with 75 parts, calcium carbonate (1250 order) (commercially available), wood powder (200 order) (commercially available) 10 parts and length are less than 5mm, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm is fully uniformly mixed the combined polyether component that rear shape contains into multiple filler component, commercially available with polymethylene multi-phenenyl isocyanate liquid material PM200(again) 110 parts fully mix after inject the mould that inner cavity size is 1000mm × 1200mm × 5mm, under 40 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 85, and nail-holding ability is up to 120CN, and room temperature places 6 months without warpage, average thickness variation for-0.0865mm.
Embodiment 2
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, sorbeth polyvalent alcohol (commercially available) 30 parts, propylene glycol polyether polyol (commercially available) 7 parts, silane surface active agent (commercially available) 2.5 parts, N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine A33(is commercially available) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride 141B(is commercially available) 5 parts of composition component A 100 parts, 5 mm are less than with 75 parts, calcium carbonate (1250 order) (commercially available) and length, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 110 parts fully disperse to form the isocyanic ester liquid material containing filler component through electromagnetic oscillation with wood powder (200 order) (commercially available) 10 parts, combined polyether containing filler component is fully mixed with the isocyanic ester liquid material containing filler component the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 40 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 85, and nail-holding ability is up to 128CN, and room temperature places 6 months without warpage, average thickness variation for-0.0667mm.
Embodiment 3
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, sorbeth polyvalent alcohol (commercially available) 30 parts, propylene glycol polyether polyol (commercially available) 7 parts, silane surface active agent (commercially available) 2.5 parts, N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine A33(is commercially available) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride 141B(is commercially available) 5 parts of composition combined polyether component A 100 parts, the combined polyether composition of rear formation containing filler component is fully uniformly mixed with 75 parts, calcium carbonate (1250 order) (commercially available), PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 110 parts fully disperse to form the isocyanic ester liquid material containing filler component through electromagnetic oscillation with wood powder (200 order) (commercially available) 10 parts, combined polyether containing filler component is less than 5mm with the isocyanic ester liquid material containing filler component and length, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm fully mixes the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 40 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 83, and nail-holding ability is up to 124CN, and room temperature places 6 months without warpage, average thickness variation for-0.0773mm.
Embodiment 4
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, sorbeth polyvalent alcohol (commercially available) 30 parts, propylene glycol polyether polyol (commercially available) 7 parts, 2.5 parts, hard polyurethane foam tensio-active agent (commercially available), N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine A33(is commercially available) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride 141B(is commercially available) 5 parts of composition component A 100 parts, with 75 parts, calcium carbonate (1250 order) (commercially available), wood powder (200 order) (commercially available) 10 parts is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 110 parts, 5mm is less than containing the combined polyether of filler component and isocyanic ester liquid material and length, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm fully mixes the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 40 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 80, and nail-holding ability is up to 117CN, and room temperature places 6 months without warpage, average thickness variation for-0.0783mm.
Embodiment 5
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, sorbeth polyvalent alcohol (commercially available) 30 parts, propylene glycol polyether polyol (commercially available) 7 parts, 2.5 parts, hard polyurethane foam tensio-active agent (commercially available), N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine A33(is commercially available) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride 141B(is commercially available) 5 parts of composition combined polyether component A 100 parts, with 50 parts, calcium carbonate (1250 order) (commercially available), wood powder (200 order) (commercially available) 10 parts is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 110 parts fully disperse to form the isocyanic ester liquid material containing filler component through electromagnetic oscillation with 25 parts, calcium carbonate (1250 order) (commercially available), combined polyether containing filler component is less than 5mm with the isocyanic ester liquid material containing filler component and length, the alkali-free short glass fiber (commercially available) 15 parts of footpath degree 10 μm fully mixes the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 40 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 78, and nail-holding ability is up to 119CN, and room temperature places 6 months without warpage, average thickness variation for-0.0644mm.
Embodiment 6
Sucrose polyethers polyvalent alcohol (commercially available) 82 parts, propylene glycol polyether polyol (commercially available) 7 parts, 2.5 parts, hard polyurethane foam tensio-active agent (commercially available), N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine A33(is commercially available) 1.5 parts, glycerine (commercially available) 1 part, pentamethylene CP(is commercially available) 5 parts of composition combined polyether component A 100 parts, with talcum powder (3000 order) (commercially available) 50 parts, 10 parts, bamboo powder (40 order) (commercially available) is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 110 parts fully disperse to form the isocyanic ester liquid material containing filler component through electromagnetic oscillation with 25 parts, calcium carbonate (5000 order) (commercially available), combined polyether containing filler component is less than 5mm with the isocyanic ester liquid material containing filler component and length, 15 parts, the carbon fiber (commercially available) that footpath degree is 10 μm fully mixes the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 60 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 88, and nail-holding ability is up to 109CN, and room temperature places 6 months without warpage, average thickness variation for-0.0599mm.
Embodiment 7
Sucrose polyethers polyvalent alcohol (commercially available) 67 parts, propylene glycol polyether polyol (commercially available) 10 parts, amidogen ether polyvalent alcohol 3 parts, bisphenol A polyether polyvalent alcohol 10 parts, 3 parts, hard polyurethane foam tensio-active agent (commercially available), N, N-dimethyl cyclohexane (commercially available) 1 part, 2,4,6-tri-(dimethylamino methyl) phenol (commercially available) 0.5 part, propylene glycol (commercially available) 1.5 parts, pentamethylene CP(is commercially available) 4 parts of composition combined polyether component A 100 parts, with kaolin (200 order) (commercially available) 55 parts, 5 parts, bamboo powder (250 order) (commercially available), wood powder (200 order) (commercially available) 10 parts is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 110 parts fully disperse to form the isocyanic ester liquid material containing filler component through electromagnetic oscillation with mica powder (1250 order) (commercially available) 10 parts, the combined polyether containing filler component is less than 5mm with the isocyanic ester liquid material containing filler component and length, 10 parts, the carbon fiber (commercially available) that footpath degree is 10 μm, length is less than 3mm, the mineral fibre (commercially available) 10 parts that footpath degree is 10 μm, fully mix the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 60 DEG C of conditions, insulation compacting slaking 120min, takes out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 90, and nail-holding ability is up to 127CN, and it is 0 without warpage, average thickness variation that room temperature places 6 months.
Embodiment 8
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, sorbeth polyvalent alcohol (commercially available) 30 parts, propylene glycol polyether polyol (commercially available) 7 parts, silane surface active agent (commercially available) 2.5 parts, N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine A33(is commercially available) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride 141B(is commercially available) 5 parts of composition component A 100 parts, 5 mm are less than with 75 parts, calcium carbonate (1250 order) (commercially available) and length, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 80 parts, modification xylyl diisocyanate liquefied mdi 8019 (commercially available) 20 parts fully disperses to form the isocyanic ester liquid material containing filler component through electromagnetic oscillation with wood powder (200 order) (commercially available) 5 parts, combined polyether containing filler component is fully mixed with the isocyanic ester liquid material containing filler component the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 150 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 80, and nail-holding ability is up to 118CN, and room temperature places 6 months without warpage, average thickness variation for-0.1887mm.
Embodiment 9
Sorbeth polyvalent alcohol (commercially available) 84 parts, propylene glycol polyether polyol (commercially available) 7 parts, silane surface active agent (commercially available) 2.5 parts, triethylene diamine A33(is commercially available) 1.5 parts, one fluorine ethylene dichloride 141B(is commercially available) 5 parts of composition component A 100 parts, with 75 parts, calcium carbonate (1250 order) (commercially available), wood powder (200 order) (commercially available) 5 parts and length are less than 5 mm, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm is fully uniformly mixed the combined polyether composition of rear formation containing filler component, PM200(is commercially available for polymethylene multi-phenenyl isocyanate liquid material) 100 parts, the isocyanic ester liquid material that hexamethylene diisocyanate HDI (commercially available) 5 parts is composite, combined polyether containing filler component is fully mixed with composite isocyanic ester liquid material the mould that rear injection inner cavity size is 1000mm × 1200mm × 5mm, under 50 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 81, and nail-holding ability is up to 130CN, and room temperature places 6 months without warpage, average thickness variation for-0.0678mm.
Embodiment 10
Sucrose polyethers polyvalent alcohol (commercially available) 50 parts, heating, vacuum dehydration is to moisture content 0.5%, sorbeth polyvalent alcohol (commercially available) 30 parts, heating, vacuum dehydration is to moisture content 0.5%, propylene glycol polyether polyol (commercially available) 7 parts, heating, vacuum dehydration is to moisture content 0.5%, 2.5 parts, silicane tensio-active agent (commercially available), N, N-dimethyl cyclohexane (commercially available) 1 part, triethylene diamine (A33) 1.5 parts, glycerine (commercially available) 3 parts, one fluorine ethylene dichloride (141B) 5 parts composition combined polyether component A 100 parts, with 75 parts, calcium carbonate (1250 order) (commercially available), wood powder (200 order) (commercially available) 10 parts and length are less than 5mm, the alkali-free short glass fiber (commercially available) 15 parts of diameter 10 μm is fully uniformly mixed the combined polyether component that rear shape contains into multiple filler component, commercially available with polymethylene multi-phenenyl isocyanate liquid material PM200(again) 110 parts fully mix after inject the mould that inner cavity size is 1000mm × 1200mm × 5mm, under 40 DEG C of conditions, insulation compacting slaking 120min, take out goods.Extrudate density is at 600kg/m after testing
3time, Article Stiffness Determination is up to SH D 87, and nail-holding ability is up to 115CN, and it is 0mm without warpage, average thickness variation that room temperature places 6 months.
The invention provides a kind of rigid foam, utilize the feature that hard polyurethane foam reacts shaping, bonding inorganic powder filler, plant powder class material and fiber-like filler, the performance of hard polyurethane foam is strengthened by three kinds of filling mixture ratio combinations, play the synergy to improving product properties, make that plastics intensity is high, good stability of the dimension, eliminate breathing and problem on deformation that storage process occurs, improve the hold ability of goods to inserts such as nail, pins, and reduce manufacturing cost.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (7)
1. a rigid foam, is characterized in that, described rigid foam is made up of component A, B component and filler;
Described component A comprises polyether glycol, suds-stabilizing agent, catalyzer, whipping agent, linking agent;
Described B component comprises isocyanic ester;
Each composition of described filler is by weight:
Inorganic powder filler 30-80 part;
Plant powder class filler 5-30 part;
Fiber-like filler 1-30 part;
The granularity of described inorganic powder filler is 200-5000 order, and described plant powder class filler is 40-120 order, and the length of described fiber-like filler is 1-100 mm, and diameter is not more than 30 μm;
Each composition of described component A is by weight:
Polyether glycol 60-95 part;
Suds-stabilizing agent 1-5 part;
Catalyzer 1-5 part;
Whipping agent 1-20 part;
Linking agent 1-10 part.
2. rigid foam according to claim 1, is characterized in that, in described B component, the consumption of isocyanic ester is that 0.9-1.5 uses by isocyanate index, is 80-180 part by weight.
3. rigid foam according to claim 1, it is characterized in that, described polyether glycol is made up of one or more polyoxypropylene polyols, described polyoxypropylene polyol is with sorbyl alcohol, sucrose, propylene glycol, TriMethylolPropane(TMP), quadrol, tetramethylolmethane, Xylitol, diethylenetriamine, glycerine is the polyoxypropylene polyol of initiator, or with dihydroxyphenyl propane, bisphenol S, three (2-hydroxyethyl) chlorinated isocyanurates, tolylene diamine, phenol-formaldehyde condensate, aniline formaldehyde condensate thing is aromatic series or the heterocycle system polyoxypropylene polyol of initiator,
Described suds-stabilizing agent is silicone tensio-active agent;
Described catalyzer is methylene radical diethylenetriamine, N, N-dimethylcyclohexylamine, dimethyl ethylene glycol amine, triethylenediamine, three (dimethylamino-propyl) Hexahydrotriazine, 2, one or more in 4,6-tri-(dimethylamino methyl) phenol, isocaprylic acid potassium, catalyst for trimerization TMR series;
Described whipping agent is lower boiling Hydrochlorofluorocarbons class whipping agent, pentane class whipping agent or hydrogen fluorine hydrocarbon blowing agents.
4. rigid foam according to claim 1, it is characterized in that, described isocyanic ester is one or more in the modifier of aliphatic diisocyanate, alicyclic diisocyanate, tolylene diisocyanate, diphenylmethanediisocyanate, polymethylene multi-phenenyl isocyanate or above-mentioned substance.
5. rigid foam according to claim 1, it is characterized in that, described inorganic powder filler is one or more in calcium carbonate, carbon black, silicon-dioxide, titanium dioxide, calcium hydroxide, magnesium hydroxide, aluminium hydroxide, polynite, mica powder, talcum powder, barium sulfate, diatomite, kaolin, graphite;
Described plant powder class filler is one or more in wood powder, bamboo powder, plant straw powder fragility powder;
Described fiber-like filler is one or more in glass fibre, the natural fiber of cut-out, carbon fiber, tynex, trevira, boron fibre.
6. rigid foam according to claim 1, it is characterized in that, described inorganic powder filler is one or more in calcium carbonate, carbon black, silicon-dioxide, titanium dioxide, calcium hydroxide, magnesium hydroxide, aluminium hydroxide, polynite, mica powder, talcum powder, barium sulfate, diatomite, kaolin, graphite;
Described plant powder class filler is one or more in wood powder, bamboo powder, plant straw powder fragility powder;
Described fiber-like filler be in mineral fibre, polymer fiber one or both.
7. rigid foam according to claim 1, is characterized in that, the material moisture content of described inorganic powder filler, plant powder class filler is less than 1%.
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| CN201310386973.9A CN103408925B (en) | 2013-08-30 | 2013-08-30 | Rigid foamed plastic |
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| CN201310386973.9A CN103408925B (en) | 2013-08-30 | 2013-08-30 | Rigid foamed plastic |
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