1, what is colophony colophony material it is a kind of tall chemistry that is used at making all sorts of material from what extract in the plant molecular material. Its have structural sex stability, high temperature resistant, and the characteristic that configuration is diversity. Material of the colophony below normal temperature is shown solid state, medium solid state, false solid state, but the organic material that also is liquid state sometimes. Colophony material has bate or melt temperature range, there is tendency of going from place to place below outside force action, burst submits conch form constantly. It is to point to on broad sense use as the polymer of plastic base material or get together beforehand content. General not dissolve at water, can dissolve at organic dissolvent. 2, resinous classification
3, colophony of phenolic aldehyde of colophony of 3.1 phenolic aldehyde also calls commonly used colophony bakelite, call bakelite pink again. It is colorless or cinnamon transparency formerly, market sale often adds colorant and show red, yellow, black, green, palm, blue wait for color, have grain, pulverous state. Be able to bear or endure weak acid and weak base, encounter strong acid happening to decompose, encounter alkali happening to corrode. Not dissolve at water, dissolve in the organic dissolvent such as acetone, alcohol. Phenol aldehyde or its ramification condensation polymerization and. Phenolic aldehyde is plastic have higher mechanical intensity, good insulating properties, heat-resisting, anti-corrosive; The character of bakelite is not bibulous, not electric, high temperature resistant, intensity is high, multi-purpose go up in electric equipment, because resemble wood tall plasticity of same insulating properties is good, be called “ bakelite ” so. Phenolic aldehyde colophony serves as one of synthetic resin of the earliest industrialization, have raw material price cheap, manufacturing technology matures simply, chemical stability is good wait for an advantage to get pay close attention to extensively and applied on industry. Although bakelite product shapes when because want to add Wen Cheng model, handling time is commonner and plastic should grow, the mould wears away demand of pairs of bigger rolled steel is higher, but the advantage position because of price of its raw material, still be not little plastic first selection substitute. Because once heat,bakelite shapes hind, caky can no more fashion into is other thing, have not not bibulous, electric, high temperature resistant, strength advanced character.
of 3.2 epoxy resin epoxy resin is generally refer to two are contained in the element or oxygen of two above annulus base compound of round organic high polymer, divide individual outside, their opposite element quality is not high. The molecular structure of epoxy resin is with lively annulus is being contained in molecular catenary oxygen radical group is its feature, annulus oxygen base the extreme that the group can be located in molecular catenary, medium occasional becomes cricoid structure. Because lively annulus is contained in molecular structure oxygen radical is round, make they can happen to cross-linking reacts and be formed with the solidify agent of a variety of types not dissolve, not of frit have the 3 high polymer to reticulate structure. 3.3 get together PTFE of 4 fluorine ethylene gets together 4 fluorine ethylene is what by carbon atom and fluorine atom comprise one kind is high-powered muti_function the polymer that contain fluorine. The polymer that contain fluorine is one group those who have extensive character and advantage is plastic. PTFE is a kind of such polymer that contain fluorine, its discovery reformed the polymer that contain fluorine forever group, levelled for a variety of application road. Get together 4 fluorine ethylene [PTFE, f4] , it is the corrosion resistance on current world one of can optimal material, the good name because of this " is plastic king " . It can be used for a long time in any phyletic and chemical medium, get together weather strip of 4 fluorine ethylene, gasket, spacer. Get together weather strip of 4 fluorine ethylene, spacer, static seal is to choose suspension polymerization to get together vinyl moulding treatment makes 4 fluorine. Get together 4 fluorine ethylene and other and plastic photograph are able to bear or endure than having chemistry is corroded with be able to bear or endure the characteristic of Wen You different, it already was applied to serve as sealed material and stuff stuff widely. One of common application of PTFE material include those who be used at kitchen cooking utensils not to stick coating. Because its are not reactivity, partial reason is the intensity that carbolic fluorine bolts, it is used at making the conduit of reactivity and caustic chemical and container normally.
3.4 get together acyl inferior amine gets together acyl inferior amine (PI) it is integral performance first-rate one of material of organic high polymer, be known as the topmost material of pyramid of high polymer material. It is no matter regard structural sex as material or be to regard functional sex as material, having tremendous applied perspective. Get together acyl inferior amine labels the project with “21 the most hopeful century one of plastic ” , each national capital is reached in the research PI, development use one of development focal points that include 21 centuries chemical industry new material.
3.5 polyethylene polyethylene (Polyethylene, abbreviation PE) it is ethylene classics polymerization a kind when make thermoplastic colophony. On industry, also include ethylene and the copolymer of a few α- olefin. Polyethylene is not had smelly, avirulent, feel is like candle, have be able to bear or endure admirably microtherm function (lowermost use temperature can be amounted to - 100~-70°C) , chemical stability is good, ability great majority is acid-base erode (do not be able to bear or endure the sick at heart that has oxidation quality) . Below normal temperature not dissolve at general dissolvent, water imbibition is small, insulating property is admirable. Polyethylene is usable blow model, crowded piece, inject shapes wait for a method to machine, apply extensively at making filmy, hollow goods, fiber and daily expense sundry goods wait.
