CN102260379B - Composite heat stabilizer and method for processing chlorine-containing polymer - Google Patents
Composite heat stabilizer and method for processing chlorine-containing polymer Download PDFInfo
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- CN102260379B CN102260379B CN201010182474A CN201010182474A CN102260379B CN 102260379 B CN102260379 B CN 102260379B CN 201010182474 A CN201010182474 A CN 201010182474A CN 201010182474 A CN201010182474 A CN 201010182474A CN 102260379 B CN102260379 B CN 102260379B
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Abstract
The invention relates to a composite heat stabilizer which comprises the following components by mass, 10%-30% of ethylene diamine tetraacetic acid, citric acid or other compositions, 0-30% of epoxy soybean oil and 40%-80% of organotin heat stabilizer. The invention also provides a method for processing a chlorine-containing polymer. The composite heat stabilizer has the advantages of nontoxicity, reduced cost and good stability.
Description
Technical field
The present invention relates to the working method of a kind of thermo-stabilizer and chlorine-containing polymer, especially a kind of composite thermal stabilizer and adopt the working method of the chlorine-containing polymer of this composite thermal stabilizer.
Background technology
Now, the application of chlorine-containing polymer very extensively.With SE (PVC) is example, because it has superior corrosion resistance and preferable mechanical property, and has advantages such as cheap, abundant raw material, ME maturation, has been widely used in the every field of industrial and agricultural production.
Add man-hour at SE, need it is heated.Yet, owing to have defective in the polrvinyl chloride structure, cause it when being heated to 110 ℃, just can deviate from hydrogenchloride, and hydrogenchloride also can quicken the SE decomposition; Therefore obvious degradation can take place in SE when 160～200 ℃ processing temperature, thereby causes the product variable color and reduce mechanical performance of products, influences the work-ing life of product.
Add the problem of decomposing easily man-hour for solving SE, can add at SE usually in the prior art and add thermo-stabilizer man-hour.The main effect of in SE processing, using thermo-stabilizer to play has: through replacing unsettled chlorine atom, absorbing hydrogen chloride and the degraded that mode such as addition reaction suppresses the SE molecule taking place with unsaturated position.
Thermo-stabilizer commonly used has lead salts stablizer, organo-tin het stabilizer and metal soap thermal stabilizers etc. in the SE processing.Wherein, the lead salts stablizer is the thermo-stabilizer that SE uses the earliest, and its cost is low, have good thermostability, but has toxicity, consistency and dispersed relatively poor.Organo-tin het stabilizer stability is comparatively excellent, but cost is higher.Metal soap thermal stabilizers uses with multiple metallic soap compound form usually, have the advantage of environmental protection, but its shortcoming is a large usage quantity, and less stable.
In view of above-mentioned condition, be necessary to provide the working method of a kind of composite thermal stabilizer that addresses the above problem and chlorine-containing polymer.
Summary of the invention
The present invention proposes a kind of composite thermal stabilizer, and it is nontoxic, can reduce cost and have preferable stability.
The present invention also proposes a kind of working method of chlorine-containing polymer, its can improve chlorine-containing polymer the course of processing stability and reduce cost.
A kind of composite thermal stabilizer, in mass, it comprises 10～30% the YD 30 and the mixture of Hydrocerol A, 0～30% epoxy soybean oil, and 40～80% organo-tin het stabilizer.
A kind of working method of chlorine-containing polymer, it may further comprise the steps.At first proportional mixing chlorine-containing polymer and composite thermal stabilizer are to form mixture.In mass, this composite thermal stabilizer comprises the mixture of YD 30 and Hydrocerol A, 0～30% epoxy soybean oil, and 40～80% organo-tin het stabilizer.Heat this mixture then.Wherein, the usage quantity of composite thermal stabilizer in mass, can account for 4～8% of chlorine-containing polymer.
The epoxy soybean oil of YD 30, Hydrocerol A or its compsn and 0～30% of above-mentioned composite thermal stabilizer employing 10～30%; Be used with organo-tin het stabilizer; Therefore guaranteeing that composite thermal stabilizer has under preferable stability and the nontoxic prerequisite, also can reduce cost.
Embodiment
To combine embodiment that the working method of composite thermal stabilizer of the present invention and chlorine-containing polymer is done further to specify below.
The composite thermal stabilizer of the embodiment of the invention, in mass, it can comprise the mixture of 10～30% YD 30 (EDTA) and Hydrocerol A, 0～30% epoxy soybean oil, and 40～80% organo-tin het stabilizer.In the mixture of composite thermal stabilizer YD 30 or Hydrocerol A, the quality percentage composition of YD 30 can be 8～20%, and the quality percentage composition of Hydrocerol A can be 2～10%.Organo-tin het stabilizer can be toxilic acid tin alkyl, thio-alcohol organotin etc., for example (CH
3)
2Sn (SCH
2COOC
8H
17)
2Preferably, organo-tin het stabilizer can be 60～80% at the quality percentage composition in composite thermal stabilizer.In addition, epoxy soybean oil can be commercially available VT 18, for example is the product of Guangzhou Dongfeng Chemical Industrial Co., Ltd..It is to be noted; In other embodiments of the invention; Can only comprise one of them of YD 30 (EDTA) and Hydrocerol A in the composite thermal stabilizer, and this moment YD 30 the quality percentage composition can be 10～30%, the quality percentage composition of Hydrocerol A can be 10～30%.
In the above-mentioned composite thermal stabilizer; Adopt 10～30% YD 30, Hydrocerol A or its compsn, 0～30% epoxy soybean oil and organo-tin het stabilizer to be used; Therefore guaranteeing that composite thermal stabilizer has under preferable stability and the nontoxic prerequisite, also can reduce cost.
A kind of working method of chlorine-containing polymer, it is above-mentioned composite thermal stabilizer to be mixed with chlorine-containing polymer to form mixture earlier, and then heats this mixture.The mixture of heating can be used for moulding or is processed into the product with required shapes/configurations.Wherein, chlorine-containing polymer can be one of SE (PVC), chlorinatedpolyethylene, chlorinated polyvinyl chloride, vinyl chloride-ethylene copolymer and vinyl chlorideacetate copolymer or its compsn.In this mixture, in mass, the consumption of composite thermal stabilizer can be 4～8% of chlorine-containing polymer.And for ease of the moulding and the processing of chlorine-containing polymer, this mixture also can be mixed with DOP (DOP), polyethylene wax (PE wax), calcium stearate or Zinic stearas etc. as additive.For example; In mass; The consumption of DOP be chlorine-containing polymer 0～65%, the consumption of polyethylene wax be chlorine-containing polymer 0.4～1%, the calcium stearate consumption is 0～5% of this chlorine-containing polymer, and the Zinic stearas consumption is in calcium stearate consumption half the.
In the working method of above-mentioned chlorine-containing polymer because the composite thermal stabilizer that adopts has preferable stability and lower cost, therefore can improve chlorine-containing polymer the course of processing stability and cut down finished cost.Particularly, for example in the above-mentioned course of processing, under 180 ± 1 ℃ environment, the heat-stable time of chlorine-containing polymer can reach more than 60 minutes.
Have preferable stability for further specifying above-mentioned composite thermal stabilizer, and the working method of above-mentioned chlorine-containing polymer can improve the stability of the course of processing of chlorine-containing polymer, below will enumerate specific embodiment and further describe.
By prescription shown in the table 1 (wherein fill a prescription and calculate), take by weighing each component earlier and mix the formation mixture with mass fraction.Then this mixture is placed on the double roller plastic-making device of about 160 ℃ of roller temperature, 1 millimeter of roll spacing and plasticated 5 minutes.Sheet promptly gets samples of sheets under after the plasticizing fully.According to standard GB/T 9349-2002, adopt the test of oven heat method.Earlier the samples of sheets that makes is cut into the shape of 2 centimetres of sizes of 2 cm x and puts into porcelain dish, put into porcelain dish 180 ± 1 ℃ baking oven observation sample variable color situation then.In the test result, the corresponding variable color time of each samples of sheets is as shown in table 1.
Table 1 sample compositing formula and variable color time thereof
Can find out that from table 1 the variable color time of polychlorovinyl sheet material sample in the time of 180 ± 1 ℃ that is processed to form of the composite thermal stabilizer of the employing specific embodiment of the invention, this explanation polychlorovinyl sheet material sample had thermostability preferably all more than 60 minutes.This shows that the working method of composite thermal stabilizer of the present invention and chlorine-containing polymer can be improved the stability of the course of processing of chlorine-containing polymer, and can reduce cost.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, these all should be included in the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (9)
1. composite thermal stabilizer, in mass, it comprises 10～30% the YD 30 and the mixture of Hydrocerol A, 0～30% epoxy soybean oil, and 40～80% organo-tin het stabilizer.
2. composite thermal stabilizer as claimed in claim 1 is characterized in that: the content of YD 30 is 8～20%.
3. composite thermal stabilizer as claimed in claim 1 is characterized in that: the content of Hydrocerol A is 2～10%.
4. composite thermal stabilizer as claimed in claim 1 is characterized in that: the content of epoxy soybean oil is 15～30%.
5. composite thermal stabilizer as claimed in claim 1 is characterized in that: the content of organo-tin het stabilizer is 60～80%.
6. the working method of a chlorine-containing polymer, it comprises:
Mix chlorine-containing polymer and composite thermal stabilizer to form mixture; Wherein in mass; This composite thermal stabilizer comprises 10～30% the YD 30 and the mixture of Hydrocerol A, 0～30% epoxy soybean oil and 40～80% organo-tin het stabilizer; And this mixture of heating.
7. the working method of chlorine-containing polymer as claimed in claim 6, it is characterized in that: in mass, the consumption of this composite thermal stabilizer is 4～8% of this chlorine-containing polymer.
8. the working method of chlorine-containing polymer as claimed in claim 6 is characterized in that: also should be mixed with softening agent and/or lubricant in this mixture.
9. the working method of chlorine-containing polymer as claimed in claim 8; It is characterized in that: this softening agent is a DOP; This lubricant comprises polyethylene wax, calcium stearate and Zinic stearas; In mass, the consumption of DOP be this chlorine-containing polymer 0～65%, the consumption of polyethylene wax for this chlorine-containing polymer 0.4～1%, the calcium stearate consumption is 0～5% of this chlorine-containing polymer, and the Zinic stearas consumption is in calcium stearate consumption half the.
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| CN105647070A (en) * | 2016-04-08 | 2016-06-08 | 苏州新区华士达工程塑胶有限公司 | Flame-retardant packaging plastic film |
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Effective date of registration: 20170509 Address after: Songshan Longxin Industrial Zone Longhu Road on the eastern side of the 515000 Guangdong city of Shantou Province Patentee after: GUANGDONG SHENGDA PLASTIC TECHNOLOGY CO.,LTD. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170509 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Nanshan District Xili Lake of Shenzhen Polytechnic in Shenzhen, Guangdong province 518000 Patentee before: Shenzhen Polytechnic |
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Address after: 515000 Room 301, science and Technology East Road, Shantou hi tech Zone, Guangdong, 301 Patentee after: GUANGDONG SHENGDA PLASTIC TECHNOLOGY CO.,LTD. Address before: 515000 Longxin Industrial Zone, east of Songshan Road, Longhu District, Shantou, Guangdong Patentee before: GUANGDONG SHENGDA PLASTIC TECHNOLOGY CO.,LTD. |