Adhesive of polyurethane of ability in swimming reachs his to be in dry law is complex medium application

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Traditional dry law is compound and common use dissolvent adhesive, there can be many dissolvent eduction in machining a process or need to handle, cause relatively serious environmental protection and safe problem from this. As adhesive of polyurethane of ability in swimming development application technology develops maturity ceaselessly, cast off afore-mentioned problems to become thoroughly by a definite date is not far. Dry law is complex carry out convenient, operation because of having function of simple, product admirable, adaptability is wide wait for numerous advantage, application is very wide, it is one of compound craft with the most general application in production of material of plastic flexible package. Its produce a process to be as follows: 1 → puts base material a → gelatinize → carbonado dry → joint (compound) → receives a → ↑ of the ripe finished product that change → puts a ↑ base material the adhesive that compound tradition uses 2 dry methods is solvent adhesive, must through carbonadoing dry except clean among them dissolvent, so that follow-up joint is machined, production gives high grade product. In complex process, have many dissolvent eduction, produce tremendous pollution to operating workshop and circumjacent environment, very adverse to the worker's health and environmental protection job. In the meantime, because used solvent, can generate the hidden danger of the respect such as combustion, explosion. The development of adhesive of ability in swimming applies, to solve problem of the safety that exists since dry method is compound and long-term, environmental protection, offerred to go up the way of beautiful. Adhesive of ability in swimming and adhesive of dissolve the form of a drug are different, it does not use organic dissolvent, serve as the dissolvent of adhesive or dispersive agent with water however. Working a way compound in when using adhesive of ability in swimming, volatilize in dry process, those who discharge is not organic dissolvent however vapor, because this avoided the waste of a large number of precious organic dissolvent not only, and also from go up at all disappear is opposite besides poisonous and harmful organic material the harm that operates personnel and environment, the root is opposite besides rudimental dissolvent the adverse effect of product sanitation function, in addition, because water won't burn, won't explode, more advantageous also to security. Adhesive of ability in swimming is used in complex flexible package in, we ought to pay close attention to polyurethane particularly kind glue of ability in swimming, this kinds of adhesive not only of compound product come off strength is apparent ground prep above is acrylic adhesive of kind of ability in swimming the compound product that wait, and the heat-resisting of the product, be able to bear or endure the integral performance such as medium sex is superior, in the develop a school of one's own in adhesive of of all kinds ability in swimming. Polyurethane of ability in swimming with getting together ether TDI is mainstream product, abroad with polyester model adipose a group of things with common features (or fat annulus a group of things with common features) give priority to. At present polyurethane of ability in swimming with anion model give priority to from emulsification, agent of hydrophily enlarge catenary is more multi-purpose 2, 2 hydroxide of 2- are methylic third is acerbity (DM-PA) , the agent that become salt is used organic alkaline kind (like 3 ethylamine TEA) , 3 ethylamine and 2, methylic third compares 2 hydroxide of 2- acerbitily in 0.

73-0.

Inside 78 limits, can obtain the polyurethane latex with viscosity moderate, good stability, compound machine uses the dissolvent that can be used at showing to have directly with the adhesive that this makes up dry method. If the average performance index of adhesive of polyurethane of ability in swimming expresses 1 show. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> is current, restrict the main factor that adhesive of polyurethane of ability in swimming uses extensively, still be inferior to solvent polyurethane adhesive besides the certain property of adhesive of polyurethane of ability in swimming besides, unit price is higher also be a main reason. However, if we notice, because quantity of the glue on area of unit of adhesive of polyurethane of ability in swimming is inferior, in production often can the defect with high unit price of effectively adhesive of polyurethane of pare ability in swimming, this to driving the application of adhesive of polyurethane of ability in swimming, it is quite advantageous. Do law answer adhesive of ability in swimming of LH-468A/LH-468B of case of model of adhesive of polyurethane of operable ability in swimming (common model) the dry law that adhesive of LH-468A/LH-468B ability in swimming is Long Hong chemical industry is complex with adhesive of polyurethane of ability in swimming, it is transparent and double constituent, compound with adhesive of ability in swimming. Those who apply to the base material such as BOPP, PE, PP, PET is compound, have come off goodly intensity and diaphaneity, have good safety to defend natural disposition, accord with following and wholesome safe code: Chinese food is packed with stick management board of medicaments of food of Food Sanitation Law of the code that receive a dose, China, United States (FDA)21CFR 175.

105. If index of its physics function is expressed 2. When adhesive of ability in swimming of NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();>LH-468A/LH-468B applies, quantity of cloth of dry basis besmear can be in 1.

5 ～ 3.

The choice between 0g/m2. Need to have hot-working or the compound film that deepness processes, besmear cloth amount is larger, besmear cloth is measured conversely lesser. To pressworking film also should increase Tu Bu to measure appropriately. The dyne water that uses 38 dyne detects presswork exterior tension of film, ensure printing ink surface exceeds 38 dyne (OK and direct use glue is being besmeared filmy surface detects its applicability) . Oven temperature setting is 80 ℃ , 85 ℃ or 90 ℃ (temperature can switch on the mobile phone to the ability after set temperature) . Because of wind force to adhesive of ability in swimming dry very important, so of oven should put into wind and platoon wind the biggest, compound heat rouses temperature setting to be 75 ℃ ～ 85 ℃ , compound heat rouses pressure to be set as far as possible the biggest. (note: To the set of temperature, bear in what consider film and craft the proposal below ability circumstance is operated by above condition as far as possible) . In 50 ± the condition of 5 ℃ falls ripe after changing 24 hours, can undertake dividing cutting machining. Be like ripe after changing, undertake making bag of treatment to should extend thermalization time appropriately. The function index of compound product sees adhesive of LH-468A/LH-468B ability in swimming watch 3. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();>YH610/YH05 is able to bear or endure water boils model - model answer is operable YH610/YH05 of adhesive of polyurethane of ability in swimming is able to bear or endure water boils model - model answer is operable the dry law that adhesive of polyurethane of ability in swimming is Gao Meng company is complex with adhesive of polyurethane of ability in swimming. Index of its physics function sees a table 4. NtentText Onmousedown=PopRightsMsg(); Align=center>nextpagententText Onmousedown=PopRightsMsg();>2YH610/YH05 is able to bear or endure water boils model - model answer is operable the product function of adhesive of polyurethane of ability in swimming: 1.

Quantity of YH610/YH05 besmear cloth comes off to compound product the influence of intensity sees a table 5. By this the watch can be seen, cloth of besmear of proposal dry basis is measured not under 3.

0g/m2. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();>2.

With YH610/YH05 compound PA/PE, PET/PE, quantity of cloth of dry basis besmear is 3.

0-3.

5g/m2, the compound intensity of the water around that boil sees a table 6. Water of compound product of 6 YH610/YH05 of watch of NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg(); Align=center> boils around to come off the comparative NtentText Onmousedown=PopRightsMsg();> of intensity can see from the data in the watch, the product function of YH610/YH05 of adhesive of polyurethane of ability in swimming and adhesive of polyurethane of dissolve the form of a drug comparatives, can satisfy the requirement that water boils. Polyurethane of ability in swimming of double constituent of PU-4276/C520 of adhesive of polyurethane of double constituent ability in swimming is compound adhesive PU-4276/C520, the dry law that is development of head office of power of chemistry of assist fencing spaceflight is complex with adhesive of polyurethane of ability in swimming, in compound product stick receive strength when the demand is not high, this glue also can be used as odd constituent glue. Compound adhesive PU-4276/C520 applies to polyurethane of double constituent ability in swimming between the plastic film such as PET, NY, PE, CPP, reach all sorts of plastic film and aluminum foil, paper between compound. The main character of PU-4276/C520: It is thinner with water, without solvent odour, use safety; Glue fluid advocate compound of ester of different cyanic acid is not contained in the agent, wholesome security is good; Force is stuck first tall, ripe change cycle weak point, managing ripe spend energy and be helpful for organizing production. This adhesive is ivory, solid content is (40 ± 2) % , is viscosity 50~120mPa? S/25 ℃ . The craft condition of PU-4276/C520: Use C520 of special solidify agent, 1 what add a quantity to be PU-4276.

8% . Dilute deserves to compare, content of solid of proposal besmear cloth not under 30% . Polyurethane of double constituent ability in swimming is compound of fluid of cloth of adhesive PU-4276/C520 besmear match scale to see a table 7. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> is dry with joint: The moisture in the adhesive that goes up in film to make Tu Bu volatilizes adequately, need to adopt film dry device, undertake controlling to wind force, wind speed and temperature. Prep above of general requirement temperature 70 ℃ , assure strong blast. Compound roller temperature should be decided according to the hear resistance of composite material, ordinary control is in 50 ℃ - 90 ℃ , use higher temperature as far as possible below the premise that does not affect product quality. Ripe change: After compound treatment, but normal temperature also can heat ripe change. Will tell commonly, normal temperature (25 ℃ are controlled) the curing time with longer need, should ripe change 24 hours or so; In 50 ℃ - below the temperature of 60 ℃ , ripe spend 4-5 hour can. Compound product function: If express,8 are shown. The advantage of answer film glue and adhesive of polyurethane of insufficient ability in swimming can use polyurethane of ability in swimming of NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> at common dry law material of complex flexible package is produced on compound product line, need is purchased or do not transform dry method complex equipment, the promotion application of adhesive of polyurethane of this pair of ability in swimming is very advantageous. Additional, compound film uses adhesive of polyurethane of applied ability in swimming adhesive is replaced ester of acetic acid second or alcohol to serve as medium with water, adhesive of polyurethane of ability in swimming shows a lot of clear advantages: Because adhesive of polyurethane of ability in swimming is latex system more, its viscosity does not measure a change along with polymer element and produce apparent difference, can make high polymer high polymer is quantified, Gao Guhan is quantified in order to increase its cohesion strength; Adhesive of polyurethane of ability in swimming adaptability of not combustible, environmental protection is good, the equipment in use process is cleaned easily, but the requirement that considers complete environmental protection, conditioning agent of the agent sealing end that in needing to be produced to this glue, adds, emulsifying agent, stabilizing agent, PH and fight cold antifreeze to wait undertake filtration with control, prevent the corrupt practice that these auxiliary bring. Adhesive of ability in swimming also is put in a few more obvious insufficient point, such as: The volatilization of water is slower, stoving need rises appropriately carbonado temperature, lengthen carbonadoes, bad news can be bigger; At the beginning of its agglutinant and general relatively solvent difference; The value is relative taller; Poorer to the wetability of plastic film; Equipment contacts vapor for a long time to be able to make component of iron simple equipment rustily etc, when we are popularizing adhesive of polyurethane of ability in swimming, want to realise the existence of these problems adequately. The tendercy of adhesive of polyurethane of ability in swimming to obtain high temperature resistant performance is good, be able to bear or endure beautiful of ability in swimming, the polyurethane of admirable ability in swimming with muscularity, fast solidify is stuck first, normally need undertakes modified to its. The method of modified of polyurethane of ability in swimming basically has cross-linking modified, mix modified, copolymerization modified and auxiliary modified to wait in all. In recent years respect of research and development of polyurethane of ability in swimming obtains the positive result of hearten making a person ceaselessly, substantially centers at a few following respects: (1) raises solid content: Current, japan already had the on the commodity of 55%-60% solid content. (2) uses mix a technology to improve performance in all, reduce cost: Cooperate adhesive of polyurethane of ability in swimming and glue of other and cheap ability in swimming to use, can make the adhesive of polyurethane of ability in swimming of high-powered, low cost, this is one of important ways that reduce cost of adhesive of polyurethane of ability in swimming. The United States already developed polyurethane of ability in swimming, adhesive of polypropylene acerbity ester, its are stuck receive intensity and solvent resistance to wait to all be compared before be being mixed in all advantageous, at present the product already put in Euramerican field. (3) rises first agglutinant: Company of printing ink of Japanese big Japan used the method that introduces epoxy resin to be made have good first agglutinant product. (4) increases stability: Begin to consider from the morphology of the latex, resolve the contradiction between sex of a diameter, viscosity, keep in storage and glue function. Because adhesive of polyurethane of ability in swimming is in dry law is complex medium applied foreground is inviting, numerous Scientists and Technologists already joined the development of adhesive of polyurethane of ability in swimming to research a field in succession, we have reason to believe, the scale that adhesive of polyurethane of ability in swimming is doing the law is complex medium applying will increase ceaselessly, all sorts of problems that adhesive of traditional ester dissolve sex exists will get settlement ceaselessly, the craft with do law answer collaboration to be a kind old and mature also will new because of this bloom. CNC Milling