CN102069592A - Preparation process of polyurethane band - Google Patents
Preparation process of polyurethane band Download PDFInfo
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- CN102069592A CN102069592A CN201010544829XA CN201010544829A CN102069592A CN 102069592 A CN102069592 A CN 102069592A CN 201010544829X A CN201010544829X A CN 201010544829XA CN 201010544829 A CN201010544829 A CN 201010544829A CN 102069592 A CN102069592 A CN 102069592A
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Abstract
The invention discloses a preparation process of a polyurethane band, which relates to a preparation process of the polyurethane band. The preparation process of the polyurethane band comprises the following steps of: A, preheating a mold monohedron; B, preparing a synthetic pre-polymer; C, preparing a dry strong chain body; D, preparing a mixture; E, preparing a solid pre-polymer; and F, preparing a bark-grafted copolymer. The requirements on compression by using a female-male double-sided model and hydraulic pressure in the prior art are eliminated, the limit of a pre-polymerized compound is eliminated, the preparation process is convenient to operate and is not limited by environmental equipment, and time controllability can be prolonged or shortened optionally.
Description
Technical field
The present invention relates to the manufacturing process of polyurethanes band.
Background technology
The manufacturing of polyurethanes band adopts the two-sided model of negative and positive to neutralize even need hydraulic pressure in the prior art, and will be in very short time complete operation, gel causes bad or waste product is wayward easily rapidly, the finished product of neutralizing is thick and not hard.
Summary of the invention
The object of the present invention is to provide a kind of manufacturing process of easy to operate polyurethanes band.
Purpose of the present invention can realize like this, designs a kind of manufacturing process of polyurethanes band, comprises
A, preheated mold monohedron; Conventional indoor temperature is lower than under 25 ℃ the environment, needs with warming-up device indoor temperature or mold heat liter are put more than 25 ℃.
The making of B, synthetic performed polymer: select the raw material modulation copolymer of 40 times of physical expansion, back brushing one deck copolymer uniformly on die surface is finished in modulation, and copolymer forms expansion and connects skin, curing;
The making of C, the strong serobila of dryness: wait to solidify the back tack-free can be more even brushing one deck copolymer, the fiber cloth that cuts is layered on the copolymer, evenly brush and suppress smooth with hairbrush, wait connects the copolymer that the sticking hand state of Pi Houwu is just evenly brushed once more, the fiber cloth that cuts is layered on the copolymer, evenly brush and suppress smooth with the fiberglass hairbrush, the brushing thickness is even, waits for that connecing skin fully solidifies;
The making of D, mixture: the modulation copolymer, on the strong chain of dryness surface, brush the copolymer more than one deck at least equably;
The making of E, solid prepolymer:, evenly brush on mixture with hairbrush with silica and calcium carbonate and copolymer hybrid modulation;
F, connect the making of skin copolymer: brushing copolymer on solid prepolymer, react regulation and control copolymer gel process in wealthy the process.
The present invention has broken and need adopt the two-sided model of negative and positive to neutralize and need hydraulic pressure in the past, and is subjected to pre-polyacetylene compound to form limitation, and is easy to operate, is not subjected to the limitation of environmental unit, can prolong arbitrarily or the shortening time is gone up controllability.
Description of drawings
Fig. 1 is the system architecture schematic diagram of preferred embodiment of the present invention;
The specific embodiment
The invention will be further described below in conjunction with embodiment.
As shown in Figure 1, a kind of manufacturing process of polyurethanes band comprises
A, preheated mold monohedron; Conventional indoor temperature is lower than under 25 ℃ the environment, needs with warming-up device indoor temperature or mold heat liter are put more than 25 ℃.
The making of B, synthetic performed polymer 1: select the raw material modulation copolymer of 40 times of physical expansion, back brushing one deck copolymer uniformly on die surface is finished in modulation, and copolymer forms expansion and connects skin, curing;
The making of C, the strong serobila 2 of dryness: wait to solidify the back tack-free can be more even brushing one deck copolymer, the fiber cloth that cuts is layered on the copolymer, evenly brush and suppress smooth with hairbrush, wait connects the copolymer that the sticking hand state of Pi Houwu is just evenly brushed once more, the fiber cloth that cuts is layered on the copolymer, evenly brush and suppress smooth with the fiberglass hairbrush, the brushing thickness is even, waits for that connecing skin fully solidifies;
The making of D, mixture 3: the modulation copolymer, on the strong chain of dryness surface, brush the copolymer more than one deck at least equably;
The making of E, solid prepolymer 4:, evenly brush on mixture with hairbrush with silica and calcium carbonate and copolymer hybrid modulation;
F, connect the making of skin copolymer 5: brushing copolymer on solid prepolymer, react regulation and control copolymer gel process in wealthy the process.
Described copolymer component: organic multiple isocyanate is 40-80%, and PPG is 8-30%, and vinyl esters is 5-30%, and methyl ethyl ketone peroxide is 0.25-0.5%, and isooctyl acid is estimated and is 0.15-0.22%.
When making mixture, the component of described silica and calcium carbonate, silica is 0.5%, calcium carbonate is 0.5%.
When making copolymer, make under acid condition, the moisture in the copolymer raw material is lower than 0.05%.
Described copolymer adds the oxygenate of organic methyl ethyl ketone peroxide class, and consumption basis indoor temperature is at that time decided, and consumption is 0.5%-3% when indoor temperature is higher than normal temperature, and consumption is 0.6-3.5% when indoor temperature is lower than normal temperature.
Described fiber cloth be 45 ° of fibers of one pack system, fineness pristine fibre 110 grams/square metre.
Adopt the warm catalysis of heating using microwave or light to connect the skin solidification process among the described step B.
The abscess that in the described step e gel process is formed requires less than 1.1mm, and outer not avalanche of abscess when sample is compressed to Shao Shi 20.
When making mixture, can add filler, material viscosity is below 500mpa.s.
The present invention includes synthetic pre-polymerization chemical combination body unsaturated monomer generation copolyreaction such as TDI, PPG, GFRP, can under the common room temperature condition, realize when using solidifying with crosslinking agent, compatible, ageing-resistant, oil resistant, shockproof, tearing property of tension premium properties have been got by multiple physical reactions thus, and have an excellent electric insulating energy, adjustable, bonding strength big, mechanical property, resist characteristic such as extraneous weather.
Increase and prolong or shorten gel time, add and use ultraviolet light stabilizers LQ-292 deal 0.15-0.6%, and composite grid fiber cloth 0.18#, can prevent effectively that coating from keeping gloss under sunlight exposure, avoid be full of cracks, explosion and generation spot and sur-face peeling, thereby improve coating life.
The strong serobila of dryness has been guaranteed compression strength, tensile strength, modulus intensity etc.
The preheating coating is the mould monohedron both, and the mould monohedron will be minute surface or mechanism effect, does not all have the housing that inherent trachoma bubble keeps inside and outside entity sealing.
Synthetic performed polymer 1 is selected 40 times raw material, is estimated in proportion by polyisocyanates, PPG, vinyl esters, methyl ethyl ketone peroxide, isooctyl acid and evenly mixes, and modulation is fit to the expansion modulus of resilience of demand.Need stir 1200-1500 commentariess on classics/min in modulation during copolymer, finishing after on die surface brushing one deck copolymer uniformly, at this moment along with physics slowly the formation expansion and connect skin, can not touch destruction at the generation strand.The copolymer closure is finished next program that enters.This brushing thickness should be controlled in the 0.5mm, note energy loss, can adopt heating using microwave or light to warm up catalysis more.Heating using microwave is that the material molecule by medium inside elevates the temperature, and the fast more fluidisation of firing rate is few more, and material can vulcanize rapidly, drops to minimum thereby reduce energy loss.Copolymer can carry out next step worker after solidifying, and connects surface with the light finger light touches, and the copolymer that the sticking hand state of nothing just can evenly be brushed once more need not to wait for next program that directly enters.
Can be after strong serobila 2 performed polymers 1 to be synthesized of dryness solidify fully with fiber cloth/staple cloth, fiber cloth, staple cloth are 45 ° of fibers of one-component, fineness pristine fibre 110g/m
2, can select for use to have the unformed of different melting points and crystalline polyester bicomponent fibers, the ratio that this fiber accounts at mixture is 1/20.To be ready to the smooth top layer that is positioned over of fiber cloth on copolymer, allocate what of copolymer consumption, modulate the back evenly and suppress smoothly, scratch with cutter, guarantee that the stickup of every place and top layer is tight if any built on stilts sign with hairbrush according to real area.This thing unrestrictedly increases tearing intensity and bending strength and fracture strength or the like advantage.
What of copolymer consumption mixture 3 allocate according to real area, select for use harder slightly hairbrush to get an amount of synthetic performed polymer brushing on the strong serobila 2 of dryness, not directly compound is upside down on the strong serobila 2 of dryness, should approach and repeatedly carefully brush and guarantee that every place does not have the cavity, reaching the high performance physique of generation that combines together between expection layer and the layer.
Connect skin copolymer 5 and be the crystal after solid prepolymer 4 solidifies, regulation and control pre-polymerization chemical combination body gel process in wealthy process of physical reactions, when the preparation performed polymer, should under acid condition, carry out, the content of moisture should be lower than 0.05%, use copolymerization auxiliary material of the present invention that epidermis and near density are improved, to the abscess-size size is that certain requirement is arranged, the excessive foamed plastics compressive strength that influences of abscess, big abscess must not be above (when 0.5～1.1mm) foamed plastics sample was compressed to Shao Shi 20, outer abscess can avalanche.To abscess less than (0.025～0.075mm) foamed plastics exemplar, abscess is equivalent compression when being compressed, promptly the inside and outside abscess of foams can absorb equably and add compression energy, it is generally acknowledged that small cells foamed plastics compression performance is better than bulla hole foamed plastics.Connect skin copolymer 5 and form thicker epidermal area, surface compact, total body density is higher, and the intensity of material is also higher, waits for the just easily demoulding after connecing skin fully solidifies.
Use invention copolymerization auxiliary material need add the oxygenate of organic methyl ethyl ketone peroxide class, consumption basis indoor temperature is at that time decided, and consumption is 0.5%-3% when indoor temperature is higher than normal temperature, and consumption is 0.6-3.5% when indoor temperature is lower than normal temperature.
Carry out 24 hours later stages steadiness at last and solidify, required goods have just been finished.
The invention solves the difficult problem of manual operations in the past, the present invention can not be subjected to the limitation of environment and equipment, thereby can operate production immediately.One put forth one's strength and will tearing open slightly with hand with veriety in the past, how use product of the present invention if can all be can not tearing to open with hand on same thickness, also is quite superior at thin system product support strength.The demand that is used for other different industries fields such as protection pad, waterproof external packing, anti-high tearing industry of software, the pressure of motion structure part.
The present invention makes a kind of flex foam of excellent performance, and it has the comfortable feel etc. of light weight, high-strength, flexible toughness and high resilience, thus can be widely used in decorating, in the industry that the technology art work is relevant.Along with improving constantly to quality, the present invention has broken and need adopt the two-sided model of negative and positive to neutralize even need hydraulic pressure in the past, and will be in very short time complete operation, gel causes bad or waste product is wayward easily rapidly, the finished product of neutralizing is thick and not hard, material by invention is easy to operate, but can prolong or shorten gel time and only need the manual just easy operation of a surface model, makes product that the high tearing of resisting, technical innovation such as ageing-resistant be arranged.
Claims (10)
1. the manufacturing process of a polyurethanes band is characterized in that may further comprise the steps:
A, preheated mold monohedron; Conventional indoor temperature is lower than under 25 ℃ the environment, needs with warming-up device indoor temperature or mold heat liter are put more than 25 ℃, helps the perfect rate of product subsurface.
The making of B, synthetic performed polymer (1): select the raw material modulation copolymer of 40 times of physical expansion, back brushing one deck copolymer uniformly on die surface is finished in modulation, and copolymer forms expansion and connects skin, curing;
The making of C, the strong serobila of dryness (2): wait to solidify the back tack-free can be more even brushing one deck copolymer, the fiber cloth that cuts is layered on the copolymer, evenly brush and suppress smooth with hairbrush, wait connects the copolymer that the sticking hand state of Pi Houwu is just evenly brushed once more, the fiber cloth that cuts is layered on the copolymer, evenly brush and suppress smooth with the fiberglass hairbrush, the brushing thickness is even, waits for that connecing skin fully solidifies;
The making of D, mixture (3): the modulation copolymer, on the strong chain of dryness surface, brush the copolymer more than one deck at least equably;
The making of E, solid prepolymer (4):, evenly brush on mixture with hairbrush with silica and calcium carbonate and copolymer hybrid modulation;
F, connect the making of skin copolymer (5): brushing copolymer on solid prepolymer, react regulation and control copolymer gel process in wealthy the process.
2. the manufacturing process of polyurethanes band according to claim 1 is characterized in that:
Described copolymer component: organic multiple isocyanate is 40-80%, and PPG is 8-30%, and vinyl esters is 5-30%, and methyl ethyl ketone peroxide is 0.25-0.5%, and isooctyl acid is estimated and is 0.15-0.22%.
3. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: the component of described silica and calcium carbonate, silica are 0.5%, and calcium carbonate is 0.5%.
4. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: the brushing thickness of every layer of copolymer is less than 0.5mm among the described step B.
5. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: mixing speed is 1200-1500 commentaries on classics/min during the modulation copolymer.
6. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: the moisture in the described copolymer raw material is lower than 0.05%, makes under acid condition.
7. the manufacturing process of polyurethanes band according to claim 1, it is characterized in that: described copolymer adds the oxygenate of organic methyl ethyl ketone peroxide class, consumption basis indoor temperature is at that time decided, consumption is 0.5%-3% when indoor temperature is higher than normal temperature, and consumption is 0.6-3.5% when indoor temperature is lower than normal temperature.
8. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: described fiber cloth be 45 ° of fibers of one pack system, fineness pristine fibre 110 grams/square metre.
9. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: adopt the warm catalysis of heating using microwave or light to connect the skin solidification process among the described step B.
10. the manufacturing process of polyurethanes band according to claim 1 is characterized in that: the abscess that in the described step e gel process is formed requires less than 1.1mm, and outer not avalanche of abscess when sample is compressed to Shao Shi 20.
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| CN201010544829.XA CN102069592B (en) | 2010-11-05 | 2010-11-05 | Preparation process of polyurethane band |
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| CN201010544829.XA CN102069592B (en) | 2010-11-05 | 2010-11-05 | Preparation process of polyurethane band |
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| CN102069592A true CN102069592A (en) | 2011-05-25 |
| CN102069592B CN102069592B (en) | 2014-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216438A (en) * | 2017-07-07 | 2017-09-29 | 宋文通 | A kind of high-strength composite high-molecular material of light weight |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002187137A (en) * | 2000-12-19 | 2002-07-02 | Mitsuboshi Belting Ltd | Belt made of polyurethane and its manufacturing method |
| CN1446243A (en) * | 2000-07-11 | 2003-10-01 | 关西涂料株式会社 | Coated film and method of laninating the same |
| CN101585237A (en) * | 2009-06-26 | 2009-11-25 | 王岳云 | Process of manufacturing polyurethane annular transmission belt by die casting |
| CN101778889A (en) * | 2007-08-21 | 2010-07-14 | 旭化成纤维株式会社 | Thermoplastic polyurethane tape |
-
2010
- 2010-11-05 CN CN201010544829.XA patent/CN102069592B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1446243A (en) * | 2000-07-11 | 2003-10-01 | 关西涂料株式会社 | Coated film and method of laninating the same |
| JP2002187137A (en) * | 2000-12-19 | 2002-07-02 | Mitsuboshi Belting Ltd | Belt made of polyurethane and its manufacturing method |
| CN101778889A (en) * | 2007-08-21 | 2010-07-14 | 旭化成纤维株式会社 | Thermoplastic polyurethane tape |
| CN101585237A (en) * | 2009-06-26 | 2009-11-25 | 王岳云 | Process of manufacturing polyurethane annular transmission belt by die casting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216438A (en) * | 2017-07-07 | 2017-09-29 | 宋文通 | A kind of high-strength composite high-molecular material of light weight |
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Address after: The development of high-tech building a road in Shenzhen City Huaqiang Nanshan District science and technology of Guangdong province 518057 13 floor Patentee after: Huaqiang infante (Shenzhen) Intelligent Technology Co. Address before: 15, 518057 floor, Huaqiang hi tech development building, Nanshan District science and technology, Shenzhen, Guangdong Patentee before: Shenzhen Huaqiang Intelligent Technology Co., Ltd. |