CN101362847B - Organotin leadless sectional materials - Google Patents
Organotin leadless sectional materials Download PDFInfo
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- CN101362847B CN101362847B CN2008101511013A CN200810151101A CN101362847B CN 101362847 B CN101362847 B CN 101362847B CN 2008101511013 A CN2008101511013 A CN 2008101511013A CN 200810151101 A CN200810151101 A CN 200810151101A CN 101362847 B CN101362847 B CN 101362847B
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Abstract
The invention relates to an organotin lead-free proximate matter which consists of the following matters (counted in weight portions): 100 portions of polyvinyl chloride, 1.3 to 1.5 portions of organotin stabilizing agents; 8 to 10 portions of titanium pigment, 8 to 10 portions of Haloflex, 1.3 to 1.5 portions of ACR processing modifiers; 2.0 to 29 portions of compound wax-hard calcium lubricating systems. After being counted according to a prescription, the matters are firstly processed into a mixture, and then the mixture is extruded to be the proximate matters by a double screw extruder. The proximate matter has the advantages of uniform and mild color, good impacting performance and high fillet intensity after a door and a window are assembled; besides, the output rate is high and completely accords with or exceeds the standard demands of GB/T8814-2004. The organotin stabilizing agent which is corresponding to the drinking water quality policy paper of the world health organization in particular completely abandons a lead salt stabilizing agent and thoroughly realizes free of lead.
Description
Technical field
The invention belongs to the building enclosure material, particularly a kind of organotin leadless plastic irregular profile.
Background technology
Polyvinyl chloride (PVC) is one of the world's five big general-purpose plastics, and its product-use is extensive, and wherein door and window has had the development of advancing by leaps and bounds in recent years with profiled material.Polyvinyl chloride is unformed superpolymer, because molecular structure is to the instability of heat, it is being heated in forming process and storage process influences its processing and mechanical property under the effect of light oxygen, polyvinyl chloride resin and goods thereof are because the textural defect of self, exist easy thermal destruction and aged shortcoming, its processing temperature (more than 160 ℃) is also higher than decomposing temperature (120-130 ℃), therefore PVC to be become goods, simultaneously in order to prevent that variable color also can keep the finished product outward appearance physicals in the usage period in the course of processing, stop polyvinyl chloride aging, prolong its work-ing life, just must in PVC machine-shaping process, add thermo-stabilizer, to delay or to stop the thermal destruction of polyvinyl chloride resin.
Lead salt is the traditional hot stablizer that uses the earliest, and its stabilization is stronger, and is cheap, wide material sources, and is still using in China and Europe.Domestic general profiled material enterprise adopts lead salt stabilizer.But in production and use, can cause certain environmental pollution.
Played the action that European countries such as Norway, Finland, Sweden, Denmark and Britain have taked the forbidding lead salt stabilizer in succession in 2000.From 2003, China also began to pay close attention to the lead salt problem, and Beijing and Shanghai have passed through to prohibit plumbous decision in water service pipe.Spelling out the water-supply pipe PVC-U pipe that uses in China in Ministry of Construction's bulletins in 2004 must be non-lead salt stabilizer.China prohibits plumbous prelude comprehensively and draws back in the PVC plastics, selects nontoxic, pollution-free, compound, thermo-stabilizer is the only way that the PVC goods develop efficiently, also is door and window with the march toward prerequisite of green structural material of profiled material.
Summary of the invention
The purpose of this invention is to provide a kind of organotin leadless sectional materials, adopt organotin stabilizer, satisfy not leaded, nontoxic, environmental protection requirement in the door-window section bar to guarantee the quality of section bar product.
The technical solution that the present invention adopts is: a kind of organotin leadless sectional materials is a main raw material with the polyvinyl chloride, forms (by weight) by following material:
100 parts of polyvinyl chloride
1.3～1.5 parts of organotin stabilizers
8～10 parts of titanium dioxides
8～10 parts of chlorinatedpolyethylenees
5～8 parts of treated carbonatess
1.3～1.5 parts of ACR modifiers
2.0～2.9 parts of compound wax-hard calcium lubricating system.
Described organotin stabilizer adopts thiol-butyl tin.
Described compound wax-hard calcium lubricating system is formed (by weight) by following substances:
1.2～1.5 parts of calcium stearates
0.2～0.4 part of oxidized polyethlene wax
0.6～1.0 part in husky rope wax.
Polyvinyl chloride: being called for short polyvinyl chloride resin, is the main component of plastic door and windows profile; Polyvinyl chloride is the polymkeric substance that makes with vinyl chloride monomer, and it is 108-114 that viscosity number is selected in door and window profile material production, and apparent density is the polyvinyl chloride resin of 0.5-0.6g/ml.
Organotin stabilizer: stablizer is a requisite class material in the polyvinyl chloride door-window section bar course of processing.And should invention use organic tin stablizer nontoxic, environmental protection.The organic tin stablizer typically refers to the tin compound that contains the Sn-C key, tin itself is tetravalence, therefore, commercial tin stabilizer all is the derivative of 4 valency tin, it can be divided into sulfur-bearing organotin and no sulphur organotin two big classes, the stability of sulfur-bearing organotin is better than no sulphur organotin, and therefore, we select the stablizer of the thiol-butyl tin of high comprehensive performance as us for use.
Titanium dioxide: titanium dioxide is best white pigment, is widely used in plastic irregular profile, and it also is a kind of extraordinary photomask agent.Rutile-type (R type) titanium dioxide relative density 4.26, specific refractory power 2.72 can reflect or reflect most of visible light, and the complete absorbing wavelength of energy is less than the ultraviolet ray of 410nm, thermotolerance, good weatherability, the effect of shielding ultraviolet rays is strong, is one of important source material that improves the section bar weathering resistance.And the import titanium dioxide has closely wrapped up one deck SiO in the titanium dioxide outside of rutile-type
2, content is about 1.5%, but also process Al
2O
3Handle.Make light shielding effect better, improve the weathering resistance of PVC profiled material widely.
Chlorinatedpolyethylene: be called for short CPE; It is to be made by high density polyethylene(HDPE) (HDPE) suspension chlorination in aqueous hydrochloric acid, promptly uses hydrogen atom among the replacement HDPE of chlorine atomic component.Because chlorination reaction is inhomogeneous and incomplete, has heterochain such as ethene, vinylchlorid in molecular chain, its chlorinity is generally 25%～40%.Experiment shows, chlorinity is that the modified effect of 37% CPE and PVC-U is the most obvious.When CPE and PVC-U were compatible, CPE formed network structure and has wrapped up the PVC-U particle, thereby has improved the erosion-resisting characteristics of PVC section bar effectively.
Treated carbonates: lime carbonate is the white powder of odorless, tasteless, mainly plays weighting agent in prescription.And treated carbonates adopts lime carbonate tensio-active agents such as lipid acid and various coupling agents to carry out surface treatment exactly, to improve dispersiveness, the reinforcement of lime carbonate in PVC greatly, reduces wearing and tearing and other performance to machinery.In the hard PVC profiled material, add treated carbonates, can improve softening temperature and hardness, improve section bar and extrude stability and dimensional stability, reduce and shrink, avoid the section bar warpage.
ACR modifier: be monomeric multipolymer such as methyl methacrylate and acrylate, vinylbenzene etc.; Because PVC melt poor ductility easily causes the melt fragmentation; The PVC melt is lax slow, causes easily that product surface is coarse, tarnish and shark skin etc.Therefore, PVC adds often needs to add processing aid man-hour, to improve the above-mentioned defective of its melt.The effect of ACR modifier is the plasticizing that promotes PVC, shortens fusion time, improves melt plastifying homogeneity, reduces plasticization temperature.
Compound wax-hard calcium lubricating system: because the molecular structure of polyvinyl chloride resin itself has determined its polarity very strong, consequent Intermolecular Forces makes its melt viscosity height, and is mobile poor, and processing units is had very strong adhesivity; Belong to simultaneously the labile thermo-sensitivity superpolymer that is heated again.Decompose in order to prevent that the melt local superheating produces in the moulding process, reduce adhesivity and the frictional force of melt, improve the flowability of melt, must add lubricant the metallic surface.And the structure of the prescription of different stabilising systems adding lubricant also is different, because lead salt stabilizer has self lubricity, as long as be aided with the lubricity that metallic soap class and a small amount of external lubricant just can satisfy prescription processing, and the organotin stabilising system is different, because the viscosity of its material, requirement to lubricating system in the prescription is very high, not only to add external lubricant, also to add an amount of internal lubricant, the kind of inside and outside lubricant agent and ratio be outbalance all, this invention has bigger different with other prescription in the selection of lubricating system, usually in order to guarantee processibility, general paraffin-hard calcium the lubricating system that uses, but concerning the organotin prescription, separate out more in the section bar production process, need frequent clear mould, therefore, the husky rope wax of having selected South Africa to produce, because the fusing point of husky rope wax is higher, can effectively reduce and separate out, satisfy the needs of section bar high-speed production, be aided with again calcium stearate and a spot of oxidized polyethlene wax as internal lubricant to constitute the lubricating system of this invention organotin prescription, the effect of three kinds of materials is as follows in the lubricating system:
Husky rope wax: South Africa, the place of production, the by product of oil production, straight-chain paraffin, fusing point is higher, high lubricating effect.
Calcium stearate: belong to metallic soap class stability, have interior lubricity concurrently;
Oxidized polyethlene wax: be the product of polyethylene part oxidation, outward appearance is white or pale yellow powder or particle, lubrication in rising.
Organotin leadless environmental protection section bar of the present invention has the following advantages:
(1) physical and mechanical properties is good; Because organotin stabilizer has sequestering action in prescription, it is more even that each component is mixed, and plastifies more fully, and therefore, the section bar of organotin formula system has excellent physical and mechanical properties, and especially fillet weld strength and resistance to impact shock obviously improve.
(2) good weatherability.The GB/T8814-2004 standard-required is up to state standards.
(3) good processing characteristics; The organotin section bar has outstanding soffening, ease for operation and energy-saving effect; It is poor that the easy soffening of organotin prescription can remedy some equipment soffening, and the defective that shearing force is low we can say that also the organotin prescription has the adaptability to various device.What usually the organotin prescription added the more plumbous system of each section temperature in man-hour will hang down 7-10 ℃, has reduced energy consumption.
(4) You Yi surface gloss; The section bar that uses the organotin prescription to produce, its smooth in appearance is glossy, and feel is fine and smooth in fat.
(5) high volume recovery; Because the relative density of tin is about 1.03～1.09, the relative density of lead salt is 7.1, if the consumption of filler is identical, organotin section bar relative density is lighter by about 4～5% than lead salt section bar, when being identical section, equal wall thickness, the organotin system is higher by about 4～5% than plumbous system exit window rate.
(6) has unleaded, the feature of environmental protection; With the organotin is stablizer, not leaded, has avoided scorification to go out and health risk;
(7) unleaded in the section bar, do not meet the worry of acid rain, sulfide variable color.
Description of drawings
Fig. 1 is the mixing procedure flow diagram.
Fig. 2 section bar technological process of production skeleton diagram.
Embodiment:
Main raw material: polyvinyl chloride (S-1000, Qilu Petrochemical); Organotin stabilizer (thiol-butyl tin T137, French A Kema); Titanium dioxide (R105, Dupont); Chlorinatedpolyethylene (135A, Weifang AsiaSat); Treated carbonates (Triratna); ACR modifier (P551, French A Kema); Calcium stearate (Yangtse River in Chongqing chemical plant); Oxidized polyethlene wax (Beijing); Husky rope wax (South Africa).
Embodiment 1: get PVC100 part, 1.3 parts of organotin stabilizers, 8 parts of titanium dioxides, 8 parts of chlorinatedpolyethylenees, 6 parts of treated carbonatess, 1.3 parts of ACR modifiers, 1.2 parts of calcium stearates, 0.2 part of oxidized polyethlene wax, 0.8 part in husky rope wax.
Above-mentioned material is mixed and made into dry blend by following flow process, its technical process as shown in Figure 1:
At first adopt the full-automatic Preblend system PBS of German Lai Meite to prepare compound.Preparation process is as follows:
Major ingredient PVC enters the PVC feed bin by falling a bag station, and wind is delivered in the main scale then.Auxiliary material chlorinatedpolyethylene, ACR modifier, calcium stearate, titanium dioxide, treated carbonates enter into the auxiliary material scale by auxiliary material jar separately and carry out weighing, enter the auxiliary material conveying pot after the weighing, and wind is sent into main scale then.After material in the main scale drained into the mixed machine of heat, the oxidized polyethlene wax of organotin stabilizer (liquid material) and manual weighing and Sha Suo wax trace material added the hot machine that mixes by hand; Through high speed rotational blade strong friction and shearing, when heat was mixed to 118～120 ℃, discharge was to cold mixer, and cold mixer enters intermediate bunker when being cooled to 45 ℃, and wind send and is blown into the dry blend storehouse, and the passage in transit sieve apparatus sieves, and some foreign material, bulk material etc. are screened out.Place after 24 hours in the dry blend storehouse, vacuum pressure conveying enters forcing machine material loading hopper to the forcing machine material loading platform, enters the forcing machine hopper again, uses for forcing machine.
Processing parameter:
Drop temperature: heat is mixed 118～120 ℃, cold mixed≤45 ℃.
The discharging reference time: heat was mixed 5～9 minutes, cold mixing 4～6 minutes.
Dry blend is extruded machine-shaping by following flow process, the section bar technological process of production as shown in Figure 2:
The dry blend that stores is added the luxuriant and rich with fragrance twin screw extruder hopper of German Crouse's agate, material is even after the hot-die extrusion moulding in the extruder barrel plasticizing, again after the typing of cooling and shaping mould vacuum cooling, cool off by water tank, draw to discharging frame by tractor behind the overlay film, cut to certain-length, through pack warehouse-in after the assay was approved by standard.
The expressing technique temperature: (unit: ℃)
Embodiment 2: get PVC100 part, 1.5 parts of organotin stabilizers, 8 parts of titanium dioxides, 8 parts of chlorinatedpolyethylenees, 8 parts of treated carbonatess, 1.3 parts of ACR modifiers, 1.2 parts of calcium stearates, 0.2 part of oxidized polyethlene wax, 0.8 part in husky rope wax.Operation is with embodiment 1.
Embodiment 3: get PVC100 part, 1.5 parts of organotin stabilizers, 8 parts of titanium dioxides, 10 parts of chlorinatedpolyethylenees, 8 parts of treated carbonatess, 1.3 parts of ACR modifiers, 1.2 parts of calcium stearates, 0.2 part of oxidized polyethlene wax, 0.8 part in husky rope wax.Operation is with embodiment 1.
Embodiment 4: get PVC100 part, 1.5 parts of organotin stabilizers, 10 parts of titanium dioxides, 10 parts of chlorinatedpolyethylenees, 1.2 parts of calcium stearates, 8 parts of treated carbonatess, 1.3 parts of ACR modifiers, 0.2 part of oxidized polyethlene wax, 0.8 part in husky rope wax.Operation is with embodiment 1.
Embodiment 5: get PVC100 part, 1.5 parts of organotin stabilizers, 10 parts of titanium dioxides, 10 parts of chlorinatedpolyethylenees, 1.5 parts of calcium stearates, 8 parts of treated carbonatess, 1.3 parts of ACR modifiers, 0.2 part of oxidized polyethlene wax, 1.0 parts in husky rope wax.Operation is with embodiment 1.
The every physicals of section bar that the present invention produces detects by GB GB/T8814-2004 standard " door, window not plasticized polyvinyl chloride (PVC-U) section bar ", and the result is as follows:
| Sequence number | Test item | The GB/T8814/2004 standard-required | Detected result |
| ?1 | Heating back state | No bubble, slight crack, pit | No bubble, slight crack, pit |
| 2 | Heating back size changing rate % | ±2.0 | 1.5 |
| The difference % of two visible surfaces | ≤0.4 | 0.2 | |
| 3 | Vicat softening point ℃ | ≥75 | 79 |
| 4 | Bending elastic modulus Mpa | ≥2200 | 2690 |
| 5 | The low temperature drop impact, the number of breaking | ≤1/10 | 0 |
| 6 | Tensile yield strength kj/m 2 | ≥600 | 786 |
| 7 | Leg mean stress Mpa | ≥35 | 43 |
Section bar color and luster of the present invention is ivory buff, color even, and outward appearance is fine and smooth lubricated, and impact property is good, and the fillet weld strength height meets the GB/T8814-2004 standard-required fully.Particularly its sanitation performance detects through SGS internal authority certification authority, and is not leaded in the section bar.
Claims (1)
1. an organotin leadless sectional materials is a main raw material with the polyvinyl chloride, it is characterized in that: form by following material, by weight:
100 parts of polyvinyl chloride
1.3～1.5 parts of organotin stabilizers
8～10 parts of titanium dioxides
8～10 parts of chlorinatedpolyethylenees
5～8 parts of treated carbonatess
1.3～1.5 parts of ACR modifiers
2.0～2.9 parts of compound wax-hard calcium lubricating system,
Described organotin stabilizer adopts thiol-butyl tin,
Described compound wax-hard calcium lubricating system is made up of following substances, by weight:
1.2～1.5 parts of calcium stearates
0.2～0.4 part of oxidized polyethlene wax
0.6～1.0 part in husky rope wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101511013A CN101362847B (en) | 2008-09-26 | 2008-09-26 | Organotin leadless sectional materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101511013A CN101362847B (en) | 2008-09-26 | 2008-09-26 | Organotin leadless sectional materials |
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| CN101362847A CN101362847A (en) | 2009-02-11 |
| CN101362847B true CN101362847B (en) | 2010-12-15 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443220A (en) * | 2010-10-09 | 2012-05-09 | 苏州工业园区鑫丰林塑料科技有限公司 | ACR (acrylic resin) and PVC (polyvinyl chloride) blending process |
| CN102942752B (en) * | 2012-11-22 | 2013-09-18 | 浙江新元方塑胶有限公司 | Dull polishing sheet and manufacture process thereof |
| CN103072246A (en) * | 2012-12-24 | 2013-05-01 | 华之杰塑料建材有限公司 | Method for preparing coating co-extrusion polyvinyl chloride (PVC) profile using recovered material as core layer |
| CN103057081A (en) * | 2012-12-24 | 2013-04-24 | 华之杰塑料建材有限公司 | Coating coextrusion polyvinyl chloride (PVC) section bar |
| CN103467886B (en) * | 2013-09-10 | 2016-01-20 | 新疆石河子中发化工有限责任公司 | Add PVC profile and the preparation method of vinyl chloride-acrylate copolymer resins |
| CN103739984A (en) * | 2013-12-09 | 2014-04-23 | 吴江市董鑫塑料包装厂 | PVC section bar used for plastic window frames |
| CN103756176A (en) * | 2013-12-09 | 2014-04-30 | 吴江市董鑫塑料包装厂 | PVC profile for door and window |
| CN104479242A (en) * | 2014-11-21 | 2015-04-01 | 苏州新区佳合塑胶有限公司 | Organic tin stabilizer formula of PVC (polyvinyl chloride) plastic |
| CN104479260A (en) * | 2015-01-21 | 2015-04-01 | 芜湖海螺型材科技股份有限公司 | PVC sectional material adopting organic tin stabilizer and preparation method of PVC sectional material |
| CN105175948A (en) * | 2015-10-27 | 2015-12-23 | 辽宁程威塑料型材有限公司 | Lead-free environment-friendly sectional bar and production technology thereof |
| CN109021451A (en) * | 2018-07-21 | 2018-12-18 | 东营大明新型建材有限责任公司 | PVC organic matter stabilizer Profile Formulation and preparation method thereof |
| CN109181155A (en) * | 2018-08-22 | 2019-01-11 | 西安高科建材科技有限公司 | A kind of leadless sectional materials of organotin calcium zinc stabilising system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392193A (en) * | 2002-07-26 | 2003-01-22 | 胡大忠 | Hard polyvinyl-chloride bar section with anti-freezing property and its producing method |
-
2008
- 2008-09-26 CN CN2008101511013A patent/CN101362847B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392193A (en) * | 2002-07-26 | 2003-01-22 | 胡大忠 | Hard polyvinyl-chloride bar section with anti-freezing property and its producing method |
Non-Patent Citations (1)
| Title |
|---|
| 郭文乐.有机锡热稳定体系塑料门窗型材配方概述.《塑料助剂》.2003,(第6期),36-37. * |
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| CN101362847A (en) | 2009-02-11 |
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Denomination of invention: Organotin leadless sectional materials Effective date of registration: 20160414 Granted publication date: 20101215 Pledgee: Commercial Bank of China Limited by Share Ltd Xi'an branch Pledgor: Xi'an Gaoke Building Materials Technology Co., Ltd. Registration number: 2016610000008 |
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