CN201933658U - Polyurethane composite groove-shaped section - Google Patents

Abstract

The utility model relates to a polyurethane composite groove-shaped section with high intensity, high specific weight, high insulation, microwave permeation, corrosion resistance and a good heat insulating effect. The polyurethane composite groove-shaped section comprises glass fibers, wherein multiple bundles of glass fibers are densely distributed to form a groove-shaped section framework; and polyurethane resin is compounded with the inner and outer surfaces of the groove-shaped section framework. The polyurethane composite groove-shaped section has the advantages of light weight, high intensity, energy conservation, heat preservation, heat insulation, healthiness, environmental friendliness, remarkable energy-saving effect, corrosion resistance, ageing resistance, long service life, high dimension stability, high weather resistance, high high-temperature resistance, better low-temperature resistance, high insulating property, high damping performance, rich color, high hardness and fatigue resistance. A polyurethane composite material has high hardness, and can be coated with various coatings, so that sections in various colors can be manufactured to adapt to different styles and grades; and the polyurethane composite material has very high fatigue resistance, so that the safety and the reliability of the material are ensured.

Description

The compound grooved profile of polyurethane

Technical field

The utility model relates to a kind of high strength, low-gravity, insulation, saturating microwave, the compound grooved profile of polyurethane corrosion-resistant and good heat-insulation effect, belongs to the section bar manufacturing and the application of composite material.

Background technology

At present, the angle steel of selling on the market, i shaped steel, channel-section steel, square steel, H shape steel etc. all adopt metal material to make.Its weak point: the one, than great, proportion; The 2nd, heat-proof quality is poor; The 3rd, corrosion-resistant, easy-to-rust.

The utility model content

Purpose of design: avoid the weak point in the background technology, design a kind of high strength, low-gravity, insulation, saturating microwave, the compound grooved profile of polyurethane corrosion-resistant and good heat-insulation effect.

Design scheme: in order to realize above-mentioned purpose of design.1, adopting the selection of polyurethane resin as the composite material of section bar, is one of technical characterictic of the present utility model.The purpose of doing like this is: the ⑴ polyurethane resin is compared with other resins, the advantage of compound polyurethane material: the one, improved lateral performance; The 2nd, removed glass felt, reduce cost; The 3rd, have the highest fiber capacity; The 4th, higher intensity and hardness; The 5th, increased the complexity of component; The 6th, reduced wall thickness; The 7th, stronger profiled outline can be crossed over bigger distance; The 8th, good shock resistance and good mar proof; The 9th, senior accurate manufacturing and fastening significantly improves screw and extracts dynamics; The tenth, excellent finish.⑵ have well weather-proof, durability: the one, have fabulous corrosion resistance; The 2nd, low water absorption rate; The 3rd, have better temperature stability; The 4th, have better photostability, aliphatic light stable resin can be arranged.⑶ better economy: the one, can reduce cost without glass felt; The 2nd, content of glass fiber height (also gaining in strength simultaneously); The 3rd, stronger product can support longer span; The 4th, the pultrusion speed of higher production efficiency-has faster improved pile line operation speed.⑷ excellent in flame retardance gives out the cigarette of much less than polyester or vinyl.⑸ environmental protection, environmental friendliness.⑹ 10% bio-based resin standard, available soybean-based resin.⑺ do not have styrene, and no peroxide produces.2, the design of polyurethane composite material product moulding technology is two of a technical characterictic of the present utility model.The purpose of doing like this is: with the pultrude process of traditional unsaturated polyester (UP) glass steel profile shapes be essentially identical, different places be: the mode difference that the ⑴ resin injects, unsaturated polyester resin are to adopt open interpolation; Polyurethane resin is the mode that adopts airtight injection.⑵ between polyurethane injection box and the goods mould, increase cooling section; In unsaturated polyester (UP) glass steel production technology is not have cooling frame or cooling section.

Compound polyurethane material has fabulous rigidity and intensity, and physics and mechanical property are seen attached list.Its complete part substitution of Al alloy and steel, the coefficient of thermal conductivity of compound polyurethane material is 0.219W/mk, the coefficient of thermal conductivity of aluminium is 237.00W/mk, the coefficient of thermal conductivity of galvanized steel is 62.000W/mk, under identical condition, with regard to material, the capacity of heat transmission of aluminum is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the non-conductor that compound polyurethane material is a heat with galvanized steel with aluminium; Compound polyurethane material has good rigidity and intensity, and fabulous plasticity is arranged again, therefore can design the structure of curtain wall profile shapes die cavity according to the technical requirements of curtain wall, processes the profile material of different shape.

Technical scheme 1: the compound grooved profile of polyurethane, it comprises glass fiber, described multi beam glass fiber gathers and constitutes the grooved profile skeleton, the compound and formation polyurethane grooved profile in outside in polyurethane resin and the grooved profile skeleton.

Technical scheme 2: the formation system of the compound grooved profile of polyurethane, by grooved profile polyurethane resin injection mold, cooling frame and thermal finalization mould constitute, grooved profile polyurethane resin injection mold has two imports, the one, for the polyurethane charging aperture and be positioned at grooved profile polyurethane resin injection mold top, one is the glass fiber bundle import, the import of angle bar section bar polyurethane resin injection mold enters the multi beam glass fiber, outlet is communicated with the cooling frame import, the outlet of cooling frame is communicated with the import of thermal finalization mould, and the outlet of thermal finalization mould is the outlet of flute profile polyurethane type composite section material pultrusion.

The utility model is compared with background technology, and the one, high-strength light, the density of glass fiber reinforced plastic shapes is about 2.1, it is lighter 3～4 times than steel, and intensity is very big, its hot strength 450～650MPa, approaching with ordinary carbon steel, bending strength is greater than 1200MPa, modulus of elasticity in static bending 48000MPa; The 2nd, energy-saving heat preserving, heat insulation, the compound polyurethane material coefficient of thermal conductivity is 0.219W/mk, has only 1/100～1/1000 of metal, is good thermal insulation material; The 3rd, health, environmental protection, energy-saving effect are remarkable; The 4th, compound polyurethane material does not contain styrene aborning, thereby can not form volatile compound VOC, so environment protection health more; The 5th, compound polyurethane material result after testing meets the index request of construction main body material among the GB6566-2001 " the radioactive material nucleic is limited the quantity of ", assay 0.2, internal radiation index 0.2, external exposure index 0.2; The 6th, corrosion-resistant, ageing-resistant, the life-span is long, with looking up with eyes wide open compound polyurethane material is good resistant material, to acid, alkali, salt and most of organic matter, seawater and humidity all have resistivity preferably, action of microorganisms also there is resistance, that its this specific character that has especially is fit to be used in is rainy, humidity and coastal area, and the place of the medium that is corrosive; The 7th, dimensional stability is good, and the linear expansion coeffcient of compound polyurethane material is 5.6 * 10-6/ ℃, is lower than steel and aluminium alloys, is 1/15 of plastics, so the glass good stability; The 8th, weather resisteant is good, and compound polyurethane material belongs to thermosetting plastics, promptly forms three-dimensional netted molecular structure after the resin crosslinks, becomes insoluble not melt, also can not melt even be heated.The compound polyurethane material heat distortion temperature is more than 200 ℃, and not only resistance to elevated temperatures is good, and resistance to low temperature is better; The 9th, good insulation preformance, compound polyurethane material is the good insulation performance material, it is not influenced by electromagnetic wave, do not reflect radio wave, saturating microwave is good, can bear high voltage and do not damage, so the compound polyurethane material section bar has special purposes to the building of open-air temporary building and communication system; The tenth, damping performance is good, the modulus of elasticity of compound polyurethane material is 20900, the section bar made from it has higher damping frequency, resin and fiber interface combines in the compound polyurethane material, have shock-absorbing and a shock resistance, avoided the structural member early damage that causes of low-resonance in working order; 11 is fatigue resistance, and the fatigue resistance of compound polyurethane material is very high, thereby guarantees safety and reliability that material uses; 12 is that compound polyurethane material has fabulous rigidity and intensity, and physics and mechanical property are seen attached list.Its complete part substitution of Al alloy and steel, the coefficient of thermal conductivity of compound polyurethane material is 0.219 W/mk, the coefficient of thermal conductivity of aluminium is 237.00W/mk, the coefficient of thermal conductivity of galvanized steel is 62.000W/mk, under identical condition, with regard to material, the capacity of heat transmission of aluminum is 1082 times of polyurethane, and the capacity of heat transmission of galvanized steel is 283 times of compound polyurethane material; Compare the non-conductor that compound polyurethane material is a heat with galvanized steel with aluminium,, fabulous plasticity is arranged again, therefore can design the structure of section bar die cavity as requested, process the section bar of different shape because compound polyurethane material has good rigidity and intensity.

Description of drawings

Fig. 1 is the cage construction schematic diagram of the compound grooved profile of polyurethane.

Fig. 2 is the structural representation of the compound grooved profile of polyurethane.

Fig. 3 is the block diagram of the compound grooved profile production system of polyurethane.

The specific embodiment

Embodiment 1: with reference to attached Fig. 1 and 2.The compound grooved profile of a kind of polyurethane, it comprises glass fiber, the densely covered formation of described multi beam glass fiber grooved profile skeleton 1, polyurethane resin 2 be compound and formation polyurethane grooved profile with the interior outside of grooved profile skeleton.That is to say, the moulding skeleton 1 of grooved profile is gathered by the multi beam glass fiber and constitutes, every glass fiber face during polyurethane resin 2 and multi beam glass fiber constitute compound fully and be compounded with bonding mutually between the glass fiber of polyurethane resin 2, solidify and constitute required grooved profile, the outside is meant the face of every glass fiber in the polyurethane resin section bar in the promptly described grooved profile skeleton.Glass fiber is that 60%-90%, polyurethane resin are 10%-40% in the described polyurethane section bar.

Embodiment 2: with reference to accompanying drawing 3.On the basis of embodiment 1, the formation system of the compound grooved profile of polyurethane, by grooved profile polyurethane resin injection mold 3, cooling frame 5 and thermal finalization mould 6 constitute, grooved profile polyurethane resin injection mold 3 has two imports, the one, for polyurethane charging aperture 4 and be positioned at section bar polyurethane resin injection mold 3 tops, one is the glass fiber bundle import, the import of grooved profile polyurethane resin injection mold enters the multi beam glass fiber, outlet is communicated with cooling frame 5 imports, the outlet of cooling frame is communicated with 6 imports of thermal finalization mould, and the outlet of thermal finalization mould is pulled out mouth for the compound polyurethane material section bar.Described thermal finalization mould constitute by 2 ~ 3 thermals treatment zone and temperature from low to high, the temperature setting range is: 150 ℃ ~ 250 ℃.Described cooling frame is the water-cooled cooling frame, and the temperature of its cooling water is 0 ℃ ~ 25 ℃.The production beginning initial stage, note adjusting and observe the flow that is expelled to the polyurethane resin in the injection box, glass can be soaked into fully, notice that polyurethane resin does not overflow the injection box; Observe the situation that goods solidify, note adjusting the temperature of hot-die, and the speed of tractor, angle bar moulding and pultrusion speed are complementary.

Embodiment 1-1: on the basis of embodiment 1 and 2, adopt 35%-40% polyurethane resin and 60%-75% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted the polyurethane grooved profile again, its physical mechanical and mechanical property are better.

Embodiment 1-2: on the basis of embodiment 1 and 2, adopt 30%-35% polyurethane resin and 65%-70% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted the polyurethane grooved profile again, its physical mechanical and mechanical property are good.

Embodiment 1-3: on the basis of embodiment 1 and 2, adopt 25%-30% polyurethane resin and 70%-75% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted the polyurethane grooved profile again, its physical mechanical and mechanical property are better.

Embodiment 1-4: on the basis of embodiment 1 and 2, adopt 20%-25% polyurethane resin and 75%-80% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted the polyurethane grooved profile again, its physical mechanical and mechanical property are best.

Embodiment 1-5: on the basis of embodiment 1 and 2, adopt 15%-20% polyurethane resin and 80%-85% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted polyurethane grooved profile, its physical mechanical and good mechanical properties again.

Embodiment 1-6: on the basis of embodiment 1 and 2, adopt 10%-15% polyurethane resin and 85%-90% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted the polyurethane grooved profile again, its physical mechanical is relative with mechanical property better.

Embodiment 1-7: on the basis of embodiment 1, on the basis of embodiment 1 and 2, adopt 10% polyurethane resin and 90% glass formation system by the compound grooved profile of polyurethane, both can pultrusion become the densely covered formation of glass fiber grooved profile skeleton 1, polyurethane resin and the densely covered formation of glass fiber grooved profile skeleton 1 can be constituted the polyurethane grooved profile again, its physical mechanical and mechanical property meet design requirement.

The physical mechanical and the mechanical property of the polyurethane profile shapes of being produced according to the above ratio, be difference to some extent, its corresponding cost also is different, the physical mechanical and the mechanical property of compound polyurethane material are best, simultaneously both economical again, polyurethane resin accounts for 20%, and glass accounted for 80% o'clock, the polyurethane grooved profile of institute's pultrusion.

What need understand is: though the foregoing description is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.

Claims (5)

1. compound grooved profile of polyurethane, it comprises glass fiber, it is characterized in that: described multi beam glass fiber gathers and constitutes the grooved profile skeleton, the compound and formation polyurethane grooved profile in outside in polyurethane resin and the grooved profile skeleton.

2. the compound grooved profile of polyurethane according to claim 1 is characterized in that: the outside is meant the face of every glass fiber in the polyurethane resin section bar in the described grooved profile skeleton.

3. the formation system of the compound grooved profile of polyurethane, it is characterized in that by grooved profile polyurethane resin injection mold, cooling frame and thermal finalization mould constitute, grooved profile polyurethane resin injection mold has two imports, the one, for the polyurethane charging aperture and be positioned at grooved profile polyurethane resin injection mold top, one is the glass fiber bundle import, the import of angle bar section bar polyurethane resin injection mold enters the multi beam glass fiber, outlet is communicated with the cooling frame import, the outlet of cooling frame is communicated with the import of thermal finalization mould, and the outlet of thermal finalization mould is the outlet of flute profile polyurethane type composite section material pultrusion.

4. the formation system of the compound grooved profile of polyurethane according to claim 4 is characterized in that: described thermal finalization mould constitute by 2 ~ 3 thermals treatment zone and temperature from low to high, the temperature setting range is: 150 ℃ ~ 250 ℃.

5. the formation system of the compound grooved profile of polyurethane according to claim 4 is characterized in that: described cooling frame is the water-cooled cooling frame, and the temperature of its cooling water is 0 ℃～25 ℃.

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