Material of inorganic pink body applies mediumly in plastic film

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Material of inorganic pink body is joined in plastic film production raw material, can reduce manufacturing cost not only, and in assure necessary mechanical function while, still can be in optical function, delay commentate function, apparent modified effect can arrive since the respect such as environmental disappear accept. The effect that waits for material of inorganic pink body to apply in plastic film with respect to kaolin of calcium carbonate, French chalk, to calcine makes the text brief introduction. Current, the one share that there is material of 4 million tons inorganic pink body every year to serve as raw material at least in China is used at the production of plastic products. Replace partial petroleum products with material of inorganic pink body, on one hand, annual and OK division approximate number 1 million tons of oil; On the other hand, to makes plastic product, not only be helpful for reducing raw material cost, and can make stuff plastic the certain property of material gets ameliorative according to booked direction, enhance the field competition ability of plastic products thereby. Sort of material of body of commonly used and inorganic pink and action occupy statistic, in about 5 million tons of products that manufacturer of more than 500 calcium carbonate of Chinese produces, having an in part is to sell toward plastic industry. In addition, a variety of inorganic pink such as pink of grey stone of kaolin of French chalk, to calcine, silicon body material also is applied extensively, some becomes functional sex even the component with plastic indispensable material. Calcium carbonate calcium carbonate is plastic use the most widely when treatment, the filling of inorganic pink body with the biggest dosage. According to calcium of association of industry of Chinese inorganic salt magnesian branch statistic, the calcium carbonate gross that is used every year at plastic stuff is in two tons, it is the place in all sorts of utility holds share the biggest, about 50% the left and right sides. Differ according to machining a method, calcium carbonate cent pledges to pledge gently and be weighed two kinds. Light qualitative calcium carbonate (abbreviation light calcium) be by limestone classics to calcine, digest, carbonization and become, meantime experienced chemical reaction, and heavy qualitative calcium carbonate is classics is abrade (dry method or wet) and become, have bead diameter volume only change and do not have chemical reaction process. The calcium carbonate that uses in plastic film at present is 1250 purposes weigh qualitative calcium carbonate, already used at PE to pack the production of bag in great quantities, in agricultural in ground film because of pervious to light the gender is affected, although can be used, but add a capacity lesser. 1) those who weigh calcium is fineness the effect of mechanical to PE film function is very apparent, see a table 1. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();>2) the has film of decisive action PE to produce enterprise counterpoise calcium to the function of PE film dispersedly accretion of calcium carbonate particle is measured care very, the hope adds a quantity to had been jumped over more more, but at the same time mechanical function, ageing resistance can, pervious to light the gender is not crossed big impact. Be in especially agricultural the issue that dispute of how many calcium carbonate can use to often be worth hard to discuss after all in ground film. Treasure chicken Yun Peng is plastic limited company of science and technology undertook beneficial exploration to this, obtain satisfactory positive result. Express film of ground of 2 listed pure LLDPE to reach add respectively 10% , 15% , 20% , the accept rice modified that 33% Yun Peng companies produce is plastic the mechanical function of the LLDPE ground film of composite material. By the watch 2 rows data can be seen, till modified of 33% accept rice is plastic,add 10% above the LLDPE ground film of composite material than film of pure LLDPE ground, each mechanical function differs not quite. In add a quantity to amount to 33% when, namely component of the CaCO3 in LLDPE film already was occupied 26.

4% when, its are mechanical function still can maintain higher level, especially orthogonal tear strength returns prep above pure LLDPE, exceed international of film of GB 13735-92 ground in the round not only classy taste technical index, and be before any CaCO3 fill mothers expect place is impossible to accomplish. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();>3) the environmental effect of calcium carbonate -- but environmental disappear accept " but environmental disappear accept is plastic " it is to point to what can use ambient conditions integratedly, can get used to rubbish to handle way, can be in already located the degradation in the environment, compost is handled or can be helpful for burning again and the harm is lesser plastic. Be in but environmental disappear accept is plastic in production process, calcium carbonate is main component. Study the result makes clear, contain the smooth degradation film of 30% heavy calcium, when insolate its carbonyl index (the index that expresses degree of smooth degradation of a note of the ancient Chinese five-tone scale) the than containing calcium carbonate smooth degradation film when reaching some numerical value should count a day ahead of schedule, advantageous to environmental disappear accept. At the same time no matter the existence of calcium carbonate is filled to PE film bury succeed add degradation, right still harmful material decreases when burning generate, protective incinerator is very advantageous. Compare with the degradation film photograph that adds starch, when calcium carbonate returns to nature, oxygen demand CODcr is worth its chemistry (the degree that material of the reproducibility in measuring water with Yu Heng pollutes) for 0, and its CODcr value is the polyethylene film that contains 15% starch 96. French chalk French chalk is those who be next to calcium carbonate is plastic with filling, be in every year plastic medium applied amount is in 200 thousand tons of above, and the recognition that gets further development as the certain physico-chemical character of French chalk, its applied limits and amount are increasing quickly. 1) use as agent of farming film heat preservation those who contain silicon is mineral, if micaceous, kaolin is mixed steatitic have to infrared ray cut off screen action. In agricultural this kind of right amount mineral powder is joined to be able to raise plastic film in big canopy film to infrared ray cut off quality, reduce the quantity of heat inside canopy to be in thereby nightly with infrared radiate form to the be lost outside canopy, raise its the heat preservation sex of big canopy. Light industry is plastic the research achievement at the beginning of 90 time makes clear the century on place of treatment application research: ① micaceous pink, kaolin, French chalk and light qualitative calcium carbonate are when fill amount is same (fineness close and all pass finishing) , the influence of mechanical to polyethylene film function is adjacent, among them the filmy and mechanical function of kaolin and micaceous pink fill is betterer. The LDPE film of the filling stuff that ② contains silicon is right of infrared ray of 7-25 μ M cut off apparent excel does not contain effect the inorganic filling of Si -- light qualitative calcium carbonate, and the infrared ray of micaceous pink, kaolin and French chalk cuts off the gender is similar. In the filling that ③ contains Si 3 kinds, the light transmittance of the LDPE film of micaceous pink fill is highest, and the light transmittance that is close to pure LDPE plastic film, the take second place of kaolin and French chalk, but the film of fill of prep above calcium carbonate. Because French chalk is low-cost with facilitating operation, its are pervious to light gender and infra-red light cut off although the gender is inferior to micaceous pink and kaolin, but still can be in keep better pervious to light quality while raise sex of its heat preservation, reason already got applied extensively in film of agricultural and plastic canopy. At present the breed of film of basis of farming film manufacturer (be able to bear or endure ageing film, double prevent film, muti_function film) different, use the amount that exceeds fine French chalk to be 1%-6% . Nextpage2) as nucleate agent polymer of use crystallization sex is like polyethylene (PE) , polypropylene (PP) , get together to benzene glycol of 2 formic acid ester (PET) , polyamide (PA) etc, the refrigeration after machining melt finalizes the design in the process, one part macromolecule will be arranged orderly, say for crystallization. Crystallization needs constant temperature and cooling rate not only, still need to generate nucleus first, catching ability is the growth of crystal. Nucleate agent has two main effect, it is to sum up brilliant rate to increase, can ensure melt polymer is rapidder in cooling process ground solidify, shorten thereby Injection Molding total cycle time, improve work efficiency; 2 it is dimension of average ball brilliant drops, tensile strength, heat is out of shape temperature and hardness are able to increase below nucleate agent action, diaphaneity increases, turbidity drops. French chalk serves as PE or the nucleate agent of PP is used, ask grain wants above all small, number of grain of bead diameter Yue Xiaoji is more, mean crystallization center more. The crystal amount that grows at the same time is more, the size of crystal itself is smaller, the performance of whole material is better. What also ask to issue French chalk in melt condition at the same time is dispersive had jumped over thoroughly more, reunite the phenomenon is slighter better. 3) what be main filling with French chalk is transparent model the effect that although can get reducing cost,fill mother makings uses calcium carbonate in plastic film, but when dosage is big, filmy transparency gets bigger impact, cause the misunderstanding of a few users. Transparent model fill mother makings is aimed at this one circumstance, did in the choice of filling and treatment craft respect great improve, make the transparency of PE film had very big improvement. Watch 3 with the watch 4 it is the optical performance that adds the 20% film after expecting with 30% transparent mothers and mechanical function respectively. Because kaolin of to calcine of NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> contains combustible carbon and the water of a variety of configuration in coal measures kaolin (water of adsorbed water, crystallization) , must pass to calcine first when using the additive that makes plastic film, realize dehydration, decarbonization, turn white to calcine into the process by black. To calcine falls in high temperature, mineral the course that should experience dehydration, decarbonization not only, and a variety of change produce likely still on mineral crystallization configuration. If content of Mo Laishi appearance is exorbitant, because Molaishi's hardness is too tall, will component of key of mechanical to plastic treatment equipment -- snail canister and screw are caused wear away badly, bring manufacturing efficiency to drop, the undesirable consequence with product not stable quality. In addition the granuality of to calcine kaolin and distributing, the element such as whiteness and price, also must try to be treated seriously. The comes from the sun Guang Jibo that receives on the earth grows 98% concentration to be in 0.

3-3.

Inside limits of 0 μ M, cent is ultraviolet light (0.

3-0.

4 μ M) , visible light (0.

4-0.

7 μ M) with infra-red light (0.

Above of 7 μ M) 3 much, the visible light that has photosynthesis for crop by day among them is the main form of heat energy of tellurian of sun's rays translate into. Night comes loose to aerosphere from earthly surface the main form of calorific quantity namely of energy 90% be the infra-red ray radiation with 7-25 μ M, its peak value is 11-13 μ M. With agricultural the big canopy that plastic film buckles, basically be to make outclass of the temperature inside canopy outside canopy, make crop be able to early gemmiparous, early maturity, the crop inside the canopy in cold season also can grow all the same. Common do not contain infra-red light to cut off the polyethylene film of the agent is right of infra-red light cut off ability is very poor, insufficient 25% , accordingly although days sun's rays passes through canopy film, take energy inside canopy be changed into heat energy, make the temperature inside canopy elevatory, but in nightly because canopy film is right infra-red light cuts off the gender is poor, major quantity of heat can arrive with radiation form be lost outside canopy. It is this to be able to increase the ply of canopy film only, and this kind increases to rise not only cut off the gender is finite, and the cost restriction that accepts film also cannot be added without limit thick. Only way is will right infra-red light has cut off the material of action is added in plastic film to make its infra-red when ray radiation arrives on canopy film, cannot have penetrated, reflex a canopy afresh again inside, achieve plastic the effect of big canopy heat preservation. Pure polyethylene is filmy (ply 0.

08-0.

1mm) the infra-red smooth transmitance to limits of wavelengh of 7-25 μ M is 70%-80% , cut off through adding infra-red light agent, can make infra-red smooth transmitance decreases 50% the following. German CONSTAB polymer - chemical limited company can reduce infra-red smooth transmitance to 25% the following; 0 what Beijing plastic institute develops.

The polyethylene of the inorganic filling fill with thick 05mm is filmy, the infra-red smooth transmitance of limits of wavelengh of 7-11 μ M can be decreased to 36% ; Henan province is anxious make 0 what the first plastic plant produces.

The polyethylene of the inorganic filling fill with thick 05mm is filmy, the infra-red smooth transmitance of limits of wavelengh of 7-14 μ M can be decreased to 39% . German CONSTAB polymer - the infra-red light that the clay that chemical limited company produces with China makes commodity brand be Constab IR 0404 Id for raw material cuts off functional mother makings, add in polyethylene film 7% , make the infra-red smooth transmitance inside limits of 7-14 μ M decreases to 25% the following. Kaolin of coal measures of Nextpage to calcine adds polyethylene plastic in hind, the French chalk that coequal condition issues the mechanical function excel of fill system or system of calcium carbonate fill, see a table 5. NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> passes the test that buckle canopy, make clear the farming film of opposite French chalk and calcium carbonate fill, the farming film of use kaolin is pervious to light good, effect of the heat preservation inside canopy is good, be helpful for crop increase production. The material of body of pink of inorganic of general character problem in application is in plastic medium applying to had been obtained approbate extensively, produce the 3 big main effect such as increment, modified and environmental protection effect, but also put in a few problems at the same time, restricting the application of in some way of material of inorganic pink body. These problems are as much on plastic film, need to take seriously what cause us highly, try to solve through technical innovation. Weightening finish problem is metalloid mineral density is a lot of bigger than synthetic resin, want normally big two 3 times, some compares polyethylene like barite pink or the density of polypropylene wants big fivefold left and right sides. Although mineral filling is on quality,replaced matrix than one ground plastic, but a few the matrix that the volume that it has is same quality only is plastic. If the grain of mineral filling and matrix colophony tighten intimate contact, do not have interstitial word, so the amount of the plastic material that the difference on this kind of bulk goes to immediate impact to be measured with area or length gauge and goods, for example the area of the length of pipe and different profile or leatheroid; Also affect the amount of Injection Molding goods directly, because the cubage of the mould of Injection Molding antrum is certain, the fuse-element of same quality if bulk is different, the amount of the goods noting model that can shape can decrease, the result reduces product cost in use filling, increase economic benefits while, because of,appeared length, area, goods several reductive are negative effect. Because polyethylene film is in fore-and-aft get with radial drawing, the influence of filmy to PE density shows stuff of inorganic pink body slightly slight. Add the PE filmy density that has 30% heavy calcium not to exceed 1 for example.

1 G/cm3, although compare pure PE film to increase 15% the left and right sides, but than Injection Molding goods, increscent scope wants small much. Because high polymer material is being stuck,this is shed condition to turn to finalize the design be like in the cooling process of condition by drawing, make the space between macromolecule is increased necessarily. Itself of calcium carbonate particle is won't of deformation, but the PE macromolecule all round them is OK of deformation, the of 70% PE melt stock outside the stock of pure PE melt of 100% and de-carbon acerbity calcium should endure same fore-and-aft drawing and radial huff, but the stock of deformation still should be achieved those who book is fore-and-aft and stretchy (depend on rotate speed) with radial stretchy (depend on velar bubble diameter) , must appear more, bigger gap. Interstitial grow in quantity, increase, mean the fall of material whole density. PE film is added so that compare a long time in material of inorganic pink body, density will increase somewhat, need looks from whole, whether does its cost drop because of adding material of inorganic pink body somewhat by area computation. The price as a result of material of inorganic pink body normally far under high polymer colophony, because this considers afore-mentioned factors, join material of inorganic pink body normally, especially calcium carbonate, the raw material cost that can make PE filmy drops somewhat. The polyethylene film that ageing problem joins material of inorganic pink body is put in particular easy ageing problem, if from but the angle of environmental disappear accept looks, it is advantageous, but from agricultural it is adverse that the angle of ground film or canopy film looks. Express the research result of chemistry of Normal University of 6 listed Fujian and material institute. They are being developed can discover when environmental disappear accept is plastic, below the prerequisite that adds glazed degradation agent, add the PE film that has calcium carbonate or French chalk, the film of PE smooth degradation that the time that reachs fair value in index of the carbonyl in ageing tests wants little Yubujia to enter calcium carbonate or French chalk. Light transmittance of NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> everybody thinks material of inorganic pink body joins polyethylene in, its light transmittance should get very big impact, although material function can satisfy use requirement, but to farming film and ground film, good light transmittance is remained whether the premise condition that uses data of inorganic pink body in great quantities. Of fill PE film pervious to light sexual stand or fall basically depends on material of body of filling grain size and this kind of inorganic pink and matrix are plastic the difference of refractive index. With the titanium whitening that has extremely strong covering power, white lead (oxidation lead) , zinc white (zinc oxide) (refractive index is respectively 2.

52, 2.

01 with 1.

79) different, two refractive index of calcite are respectively 1.

658 with 1.

486, and the refractive index with plastic PE is 1.

55 the left and right sides, because this is added,a few calcium carbonate are shown opaque be nature. And those who want to make grain of many calcium carbonate presents accept rice measure is dispersive also be impossible. The refractive index of French chalk and PE are plastic some more adjacent, because this wants to be able to disperse only,come, film of its fill PE can have better than calcium carbonate pervious to light quality. Somebody finds a kind recently mineral, the PE filmy light transmittance after fill is very tall, mix almost pure LDPE is identical, its price is not very high, to be in a large number of farming ground film is medium use to bring a hope. Material of body of inorganic pink of NtentText Onmousedown=PopRightsMsg(); Align=center>ntentText Onmousedown=PopRightsMsg();> had gained remarkable success in the application in plastic film. As a result of agricultural plastic film, no matter be ground film, still be canopy film, use polyethylene resin mostly, because this research discusses material of all sorts of inorganic pink body,the influence of plastic to PE function appears very important. The author not film of ground of extravagant hopes farming uses data of inorganic pink body in great quantities, but hope eagerly from the strategic height that can develop continuously, coordinate the angle of development from plastic industry and protection of environmental modes of life and relation to their environment, through the technology from the enterprise innovation raises the angle of competition ability of product field, joint efforts open up gives authority the new scope of operation that material of inorganic pink body uses in farming ground film comes. CNC Milling