CN107759926A - A kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate and preparation method thereof - Google Patents
A kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate and preparation method thereof Download PDFInfo
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- CN107759926A CN107759926A CN201711089431.XA CN201711089431A CN107759926A CN 107759926 A CN107759926 A CN 107759926A CN 201711089431 A CN201711089431 A CN 201711089431A CN 107759926 A CN107759926 A CN 107759926A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The present invention relates to fire-retardant and smoke-inhibiting type PVC technical fields, especially a kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate, it is made up of 100 parts of polyvinyl chloride resin, 40 parts of plasticizer, 4 parts of stabilizer, 0.5 part of lubricant, 6 parts of anti-flaming smoke-inhibiting agent, wherein described anti-flaming smoke-inhibiting agent is made up of for 4.5 parts 1.5 parts of phosphomolybdate with antimony oxide, the stabilizer is made up of 2 parts of dibasic lead phosphite, 2 parts of lead sulfate tribasic, and above proportioning is mass ratio.The present invention uses certain compounding more fire-retardant than obtained PVC, suppression cigarette, heat endurance to be improved by phosphomolybdate and antimony oxide.
Description
Technical field
The present invention relates to fire-retardant and smoke-inhibiting type PVC technical fields, more particularly to a kind of fire-retardant and smoke-inhibiting type with phosphomolybdate
PVC and preparation method thereof.
Background technology
Polyvinyl chloride (Polyvinyl Chloride, abbreviation PVC) resin is the homopolymer of vinyl chloride, is by vinyl chloride list
Body is by polymerization and the thermoplastic macromolecule material that is formed.It is one of five big resins for universal use, and its yield is only second to polyethylene, is occupied
The second of plastic products.Igelite is due to its excellent electrical property, resistance to chemical corrosion, processing are simple, price
Cheap, the advantages that being easily modified, it is widely used in many departments such as industry, agricultural, chemical industry, electronic apparatus and building trade.
PVC can be divided into hard and soft two major class, and worldwide, rigid PVC products are using commonplace, but flexible PVC is at me
State uses relatively broad.Most of flexible PVC product is applied to the production process of electronic apparatus, electric wire and construction material
In, because this kind of material has higher requirement to fire resistance, it is very necessary to carry out flame retardant treatment to flexible PVC.
In addition, PVC smoke amount is big, ranked first in common plastic products, therefore press down cigarette processing with especially heavy to PVC
The meaning wanted.
Antimony oxide is one of earliest adopted inorganic combustion inhibitor, and usage amount maximum in Sb system fire retardant at present
One kind.Antimony oxide belongs to auxiliary type fire retardant, is added at it separately as fire retardant in use, can not reach preferable
Flame retardant effect, but compounded with halogen compounds as fire retardant in use, with regard to excellent fire resistance can be shown.Three oxidations two
Antimony can play fire retardation in gas phase and cohesion relative material simultaneously.Antimony oxide is only added in flexible PVC to be made
Its flame retardancy improves, and this is due to that PVC can discharge HCl gases when just starting to light, and antimony containing compounds can be combined with HCl
And oxychloride is generated, oxychloride is heated afterwards continues to decompose, and takes away a caused part during sample combustion
Heat, SbCl is most generated at last3.Then SbCl3Discharged Cl free radicals by thermal decomposition, and Cl can with the H in flame and
HO free radicals are combined, and inhibitory action is served to propagation of flame.Furthermore SbCl3Vapour density is larger, in sample combustion process
In be covered in the surface of material, the heated imflammable gas effusion material decomposited of sample can not only be suppressed, while effectively prevent
Material and air contact, so as to serve fire retardation to sample.
The fire retardant for being generally used for PVC includes following elements：Compound containing antimony, tin, zinc, copper, iron or molybdenum etc..Three oxidations
Two antimony (Sb2O3) fine to PVC material fire retardation, because it can play fire-retardant work in gas phase and cohesion relative material simultaneously
With so its flame retardant effect is notable.But antimony oxide can discharge toxic gas when burning.So its resistance can be replaced by finding
It is necessary to fire agent.
The content of the invention
The invention aims to solve the shortcomings that PVC flame-retardant smoke inhibitions effect is bad in the prior art, and one proposed
The fire-retardant and smoke-inhibiting type PVC of kind with phosphomolybdate and preparation method thereof.
To achieve these goals, present invention employs following technical scheme：
A kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate is designed, by 100 parts of polyvinyl chloride resin, 40 parts of plasticizer, stabilizer 4
6 parts of part, 0.5 part of lubricant, anti-flaming smoke-inhibiting agent compositions, wherein the anti-flaming smoke-inhibiting agent aoxidizes two for 1.5 parts by phosphomolybdate with three
4.5 parts of compositions of antimony, the stabilizer are made up of 2 parts of dibasic lead phosphite, 2 parts of lead sulfate tribasic, and above proportioning is quality
Than.
Preferably, the lubricant is zinc stearate.
Preferably, the plasticizer is dioctyl phthalate.
Preferably, the phosphomolybdate is in phosphomolybdic acid zinc, Calcium Phosphomolybdate, phosphomolybdic acid iron, phosphomolybdic acid nickel, phosphomolybdic acid cobalt
It is a kind of.
Preferably, the phosphomolybdate preparation method is：Preparation method A, preparation method B, preparation method C, preparation method D
Or preparation method E；
Preparation method A：With deionized water, the saturated solution of zinc sulfate and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Phosphomolybdic acid zinc；
Preparation method B：With deionized water, the saturated solution of calcium chloride and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Calcium Phosphomolybdate；
Preparation method C：With deionized water, the saturated solution of ferric trichloride and phosphomolybdic acid is prepared respectively, two kinds of solution are fallen
Enter in 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus
Iron molybdate；
Preparation method D：With deionized water, the saturated solution of nickel sulfate and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Phosphomolybdic acid nickel；
Preparation method E：With deionized water, the saturated solution of cobalt chloride and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Phosphomolybdic acid cobalt.
The preparation method of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate, comprises the following steps：
Step 1：100 parts of polyvinyl chloride resin is taken to be put into container；
Step 2：With mixer by 40 parts of plasticizer, 4 parts of stabilizer, 0.5 part of lubricant, 6 parts of anti-flaming smoke-inhibiting agent and PVC
100 parts of resin is mixed evenly；
Step 3：The product obtained in step 2 at 155 DEG C~160 DEG C is kneaded 10min with kneading machine；
Step 4：The product obtained in step 3 is moved into vulcanizing press at 160 DEG C~170 DEG C, 10MPa~12MPa
5~8min of hot pressing under pressure；
Step 5：The product natural cooling that step 4 obtains is taken out, obtains fire-retardant and smoke-inhibiting type PVC.
A kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate proposed by the present invention and preparation method thereof, beneficial effect is：
1) phosphomolybdate has certain fire retardation, and by phosphomolybdate in few additive and Sb2O3Compound conduct
PVC fire retardant, it can obtain than being individually added into the more preferable flame retardant effect of antimony oxide；
2) phosphomolybdate uses as PVC smoke suppressant, when it is 1.5g that it, which adds PVC amounts, can play good suppression
Cigarette effect；
3) phosphomolybdate and Sb2O3The fire retardant as PVC is compounded, has delayed PVC decomposition to a certain extent, has made sample
The heat endurance of product improves.
Brief description of the drawings
Fig. 1 is the synthetic route schematic diagram of the present invention；
Fig. 2 is pure PVC, PVC/Sb2O3, PVC/ phosphomolybdic acids/Sb2O3Thermogravimetric analysis figure；
Fig. 3 is PVC, PVC/ phosphomolybdic acid 1.5g/Sb2O3Thermogravimetric analysis figure；
Fig. 4 is PVC, PVC/ phosphomolybdic acid nickel/Sb2O3Thermogravimetric analysis figure；
Fig. 5 is PVC pure samples, PVC/Sb2O3, PVC/ phosphomolybdic acids zinc/Sb2O3Thermogravimetric analysis figure；
Fig. 6 is PVC pure samples, PVC/Sb2O3, PVC/ phosphomolybdic acids cobalt/Sb2O3Thermogravimetric analysis figure；
Fig. 7 is PVC pure samples, PVC/Sb2O3, PVC/ phosphomolybdic acids iron/Sb2O3Thermogravimetric analysis figure；
Fig. 8 is PVC pure samples, PVC/Sb2O3, PVC/ Calcium Phosphomolybdates/Sb2O3Thermogravimetric analysis figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Reference picture 1-8, a kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate, by 100 grams of polyvinyl chloride resin, 40 grams of plasticizer,
6 grams of 4 grams of stabilizer, 0.5 gram of lubricant, anti-flaming smoke-inhibiting agent compositions, wherein anti-flaming smoke-inhibiting agent are aoxidized for 1.5 grams by phosphomolybdate with three
Two 4.5 grams of antimony are formed, and stabilizer is made up of 2 grams of dibasic lead phosphite, 2 grams of lead sulfate tribasic, and lubricant is zinc stearate,
Plasticizer is dioctyl phthalate, and phosphomolybdate is phosphomolybdic acid zinc, Calcium Phosphomolybdate, phosphomolybdic acid iron, phosphomolybdic acid nickel, phosphomolybdic acid
One kind in cobalt.
Phosphomolybdate preparation method is：Preparation method A, preparation method B, preparation method C, preparation method D or preparation method
E；
Preparation method A：With deionized water, the saturated solution of zinc sulfate and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Phosphomolybdic acid zinc；
Preparation method B：With deionized water, the saturated solution of calcium chloride and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Calcium Phosphomolybdate；
Preparation method C：With deionized water, the saturated solution of ferric trichloride and phosphomolybdic acid is prepared respectively, two kinds of solution are fallen
Enter in 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus
Iron molybdate；
Preparation method D：With deionized water, the saturated solution of nickel sulfate and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Phosphomolybdic acid nickel；
Preparation method E：With deionized water, the saturated solution of cobalt chloride and phosphomolybdic acid is prepared respectively, by two kinds of saturated solutions
Pour into 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, is obtained
Phosphomolybdic acid cobalt.
The preparation method of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate, comprises the following steps：
Step 1：100 grams of polyvinyl chloride resin is taken to be put into container；
Step 2：With mixer by 40 grams of plasticizer, 4 grams of stabilizer, 0.5 gram of lubricant, 6 grams of anti-flaming smoke-inhibiting agent and PVC
100 grams of resin is mixed evenly；
Step 3：The product obtained in step 2 at 155 DEG C~160 DEG C is kneaded 10min with kneading machine；
Step 4：The product obtained in step 3 is moved into vulcanizing press at 160 DEG C~170 DEG C, 10MPa~12MPa
5~8min of hot pressing under pressure；
Step 5：The product natural cooling that step 4 obtains is taken out, obtains fire-retardant and smoke-inhibiting type PVC.
The laboratory apparatus of table 1
Experimental data：
The PVC/ phosphomolybdates of table 2/Sb2O3The oxygen index (OI) of sample
As can be seen from Table 2, pure PVC oxygen index (OI)s are 28.8 it can be seen from above each group oxygen index (OI) test result, individually
Add Sb2O3When oxygen index (OI) be 34.1；Under 0.5g~2.0g addition, each group oxygen index (OI) excursion：Total amount is constant
Phosphomolybdic acid/Sb2O3Oxygen index (OI) is 34.1~37.1, and phosphomolybdic acid zinc, phosphomolybdic acid iron, phosphomolybdic acid nickel, phosphomolybdic acid cobalt, Calcium Phosphomolybdate add
For dosage at 1.5, the oxygen index (OI) of sample is above the Sb that independent addition is 1.5g2O3Oxygen index (OI).But it is below addition
For the oxygen index (OI) of 1.5g phosphomolybdic acids.Analysis show that phosphomolybdate has certain fire retardation, and passes through phosphomolybdic acid more than
Salt is in few additive and Sb2O3The fire retardant as PVC is compounded, can be obtained than being individually added into the more preferable resistance of antimony oxide
Fuel efficiency fruit, but flame retardant effect is all not as adding phosphomolybdic acid.
Table 3 adds phosphomolybdate/Sb2O3PVC sample smoke density
It can be seen from smoke density data in table 3 when phosphomolybdate addition is in 1.5g, the maximum smoke density of sample and
Smoke density grade is below the PVC without suppression cigarette processing and individually adds the PVC sample of antimony oxide.When phosphomolybdate adds
Measure for 1.5g when, maximum smoke density value has drop in varying degrees compared with the PVC sample without suppression cigarette phosphomolybdate processing
It is low；Smoke density grade also has a different degrees of reduction, smoke density grade by phosphomolybdic acid zinc that addition is 1.5g it is treated with not
Difference is compared through the treated PVC sample with after individually addition antimony oxide processing of suppression cigarette, smoke density grade reduces
2.61% and 1.3%；Smoke density grade is by the sample that the phosphomolybdic acid iron that added amount is 1.5g treats with being handled without suppression cigarette
When compare smoke density with the PVC sample after individually addition antimony oxide processing and reduce 9.42% He respectively
8.20%,.PVC sample of the smoke density grade by being treated by addition for 1.5g phosphomolybdic acid cobalt and with being handled without suppression cigarette
Compared with the sample by antimony oxide processing, reduce 9.42% and 8.20% respectively；Smoke density grade is by by adding
The Calcium Phosphomolybdate measured as 1.5g treats and the PVC sample with being handled without suppression cigarette and the sample phase by antimony oxide processing
Than reducing 1.8% and 0.48% respectively；Smoke density grade by by phosphomolybdic acid nickel that addition is 1.5g it is treated and with not
PVC sample through pressing down cigarette processing is compared with the sample by antimony oxide processing, reduces 1.8% and 1.12% respectively；Table
Bright phosphomolybdate uses as PVC smoke suppressant, when it is 1.5g that it, which adds PVC amounts, can play good smoke suppressing effect.
Fig. 2 shown under above experiment condition, pure PVC, PVC/Sb2O3, phosphomolybdic acid/Sb2O3Thermogravimetric (TG) with temperature
Change curve.From pure PVC thermogravimetric curves in Fig. 2, weightlessness twice occurs for sample, and first time sample is from 220 DEG C or so
It is then drastically weightless to 340 DEG C to 260 DEG C to start slowly weightlessness, then quality maintenance relative constancy, in the process, should be
PVC molecules are there occurs the degradation process of removing hydrogen chloride, and hydrogen chloride volatilizees rapidly after being removed from PVC, so as to cause sample matter
Amount drastically declines；It is that sample starts slow weightlessness again from 440 DEG C or so for the second time, until 700 DEG C, weightlessness is still continuing, this mistake
Cheng Yingwei sample molecules crack, and produce alkene micromolecular and volatilize, while this micromolecular may partly be recombinated and sunk
Carbon distribution, therefore mass change trend is relatively slow.PVC/Sb in comparison diagram 3.4-12O3、PVC/Sb2O3Thermogravimetric curve can
Know, PVC/Sb2O3, phosphomolybdic acid/Sb2O3Thermal degradation course and pure PVC it is basically identical, except that their weightless speed
With residual mass percentage, i.e. the PVC of flame retardant treatment and not fire retardant treated PVC are surplus after decomposition under the conditions of same test
Charcoal rate is different.
Table 4 pure PVC, PVC/Sb2O3, PVC/ phosphomolybdic acids/Sb2O3Thermogravimetric curve characteristic contrasts
Thermogravimetric curve characteristic is almost decomposed completely after can be seen that not fire retardant treated PVC burnings from table 4
(surplus charcoal rate is 1.1%), improves 7.05 DEG C, surplus charcoal rate is brought up to using the PVC temperature of initial decomposition after Sb2O3 flame retardant treatments
5.51%；After adding 1.4g and 1.5g phosphomolybdic acids, temperature of initial decomposition is than individually addition Sb2O3When sample raised, remain
Charcoal rate also adds Sb than simple2O3It has been raised that, illustrating the addition of the compound flame retardant of phosphomolybdic acid and antimony oxide makes PVC's
Flame retardant effect becomes more preferable.
Table 5 PVC, PVC/ phosphomolybdic acid 1.5g/Sb2O3Thermogravimetric curve characteristic contrasts
From thermogravimetric curve in Fig. 3, PVC/ phosphomolybdic acids 1.5g/Sb2O3It is obvious that 5g remains charcoal rate after decomposing under experimental conditions
Higher than PVC pure sample product.
Thermogravimetric curve characteristic can be seen that PVC/ phosphomolybdic acids 1.5g/Sb from table 52O35g temperature of initial decomposition ratio
PVC pure samples product improve 7.05 DEG C, and surplus charcoal rate has brought up to 11.35%.It can thus be seen that phosphomolybdic acid and Sb2O3Compound conduct
PVC fire retardant, significantly improve the heat endurance of PVC sample.
Table 6 PVC, PVC/ phosphomolybdic acid nickel/Sb2O3、PVC/Sb2O3Thermogravimetric curve characteristic contrasts
Observe thermal gravimetric analysis curve in Fig. 4 to understand, PVC/ phosphomolybdic acids nickel/Sb2O3Sample curves are located always after 300 DEG C
In PVC/Sb2O3, above PVC pure samples curve, illustrate that its heat endurance is all better than the two, PVC/ phosphomolybdic acids nickel/Sb2O3Surplus charcoal rate
9.13% is brought up to, than obtaining PVC pure samples, PVC/Sb2O3To effect to get well.Show it can thus be seen that phosphomolybdic acid nickel adds
Write the heat endurance for improving PVC sample.
Observe thermogravimetric curve in Fig. 5 to understand, PVC/ phosphomolybdic acids zinc/Sb2O3It is pure that curve is constantly in PVC after 300 DEG C
Sample, PVC/Sb2O3Above curve, illustrate its heat endurance than PVC pure sample, PVC/Sb2O3It is good.
The PVC pure samples of table 7, PVC/Sb2O3PVC/ phosphomolybdic acids zinc/Sb2O3Thermogravimetric curve characteristic contrasts
Table 7 is by PVC pure samples, PVC/Sb2O3, PVC/ phosphomolybdic acids zinc/Sb2O3Thermogravimetric Data contrast is drawn, hot from table
Weight curvilinear characteristic data can be seen that PVC/ phosphomolybdic acids zinc/Sb2O3Surplus charcoal rate has brought up to 7.02%, than PVC pure sample, PVC/
Sb2O3Obtain more preferable effect.As can be seen here, phosphomolybdic acid zinc can significantly improve the heat endurance of PVC sample.
Observe thermogravimetric curve in Fig. 6 to understand, PVC/ phosphomolybdic acids cobalt/Sb2O3Remain under experimental conditions charcoal rate higher than PVC pure samples,
PVC/Sb2O3, illustrate its heat endurance than PVC pure sample, PVC/Sb2O3, it is good.
The PVC pure samples of table 8, PVC/Sb2O3.PVC/ phosphomolybdic acid cobalt/sb2O3 thermogravimetric curves characteristic contrast
Table 8 is by PVC/ phosphomolybdic acids cobalt/Sb2O3Thermogravimetric curve characteristic and PVC pure samples, PVC/Sb2O3, Thermogravimetric Data
What contrast was drawn, thermogravimetric curve characteristic can be seen that PVC/ cobalt molybdates/Sb from table2O3Surplus charcoal rate is brought up to
9.13%, than PVC pure sample, PVC/Sb2O3Obtain more preferable effect.As can be seen here, phosphomolybdic acid cobalt can significantly improve PVC sample
Heat endurance.
Observe thermogravimetric curve in Fig. 7 and understand phosphomolybdic acid iron/Sb2O3Curve is constantly in pure PVC, PVC/ after 300 DEG C
Sb2O3Above curve, illustrate its heat endurance than pure PVC, PVC/Sb2O3It is good.
The PVC pure samples of table 9, PVC/Sb2O3PVC/ phosphomolybdic acids iron/Sb2O3Thermogravimetric curve characteristic contrasts
Table 9 is by pure PVC, PVC/Sb2O3, PVC/ phosphomolybdic acids iron/Sb2O3Thermogravimetric Data contrasts what is drawn, the thermogravimetric from table
Curvilinear characteristic data can be seen that PVC/ phosphomolybdic acids iron/Sb2O3Surplus charcoal rate has brought up to 18.40%, than pure PVC, PVC/Sb2O3
Addition obtain more preferable effect.As can be seen here, phosphomolybdic acid iron can significantly improve the heat endurance of PVC sample.
Observe thermogravimetric curve in Fig. 8 and understand Calcium Phosphomolybdate/Sb2O3Curve is constantly in pure PVC, PVC/ after 300 DEG C
Sb2O3Above curve, illustrate its heat endurance than pure PVC, PVC/Sb2O3It is good.
The 0PVC pure samples of table 1, PVC/Sb2O3PVC/ Calcium Phosphomolybdates/Sb2O3Thermogravimetric curve characteristic contrasts
Table 10 is by pure PVC, PVC/Sb2O3, PVC/ Calcium Phosphomolybdates/Sb2O3Thermogravimetric Data contrast is drawn, hot from table
Weight curvilinear characteristic data can be seen that PVC/ Calcium Phosphomolybdates/Sb2O3Surplus charcoal rate has brought up to 13.2%, than pure PVC, PVC/
Sb2O3Addition obtain more preferable effect.As can be seen here, Calcium Phosphomolybdate can significantly improve the heat endurance of PVC sample.
Summarize：
The analysis contrast more than, by phosphomolybdic acid zinc, phosphomolybdic acid nickel, the phosphomolybdic acid obtained after modification
Iron, Calcium Phosphomolybdate, phosphomolybdic acid cobalt are added in PVC with 1.5g addition, and its surplus charcoal rate is above pure PVC and individually addition Sb2O3
Sample.It is 1.1%, PVC/Sb that pure PVC, which remains charcoal rate,2O3For 5.51%, Calcium Phosphomolybdate/Sb2O3For 13.2%, phosphomolybdic acid iron/
Sb2O318.4O%, phosphomolybdic acid nickel/Sb2O3For 7.02%, phosphomolybdic acid zinc/Sb2O3For 12.7%, phosphomolybdic acid cobalt/Sb2O3For
13.01%, show phosphomolybdate and Sb2O3The fire retardant as PVC is compounded, has delayed PVC decomposition to a certain extent, has made
The heat endurance of sample improves.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of fire-retardant and smoke-inhibiting type PVC with phosphomolybdate, it is characterised in that by 100 parts of polyvinyl chloride resin, 40 parts of plasticizer, steady
6 parts of 4 parts of agent, 0.5 part of lubricant, anti-flaming smoke-inhibiting agent compositions are determined, wherein the anti-flaming smoke-inhibiting agent is by 1.5 parts of phosphomolybdate and three oxygen
Change two antimony, 4.5 parts of compositions, the stabilizer is made up of 2 parts of dibasic lead phosphite, 2 parts of lead sulfate tribasic, and above proportioning is
Mass ratio.
A kind of 2. fire-retardant and smoke-inhibiting type PVC with phosphomolybdate according to claim 1, it is characterised in that the lubrication
Agent is zinc stearate.
A kind of 3. fire-retardant and smoke-inhibiting type PVC with phosphomolybdate according to claim 1, it is characterised in that the plasticising
Agent is dioctyl phthalate.
A kind of 4. fire-retardant and smoke-inhibiting type PVC with phosphomolybdate according to claim 1, it is characterised in that the phosphorus molybdenum
Hydrochlorate is one kind in phosphomolybdic acid zinc, Calcium Phosphomolybdate, phosphomolybdic acid iron, phosphomolybdic acid nickel, phosphomolybdic acid cobalt.
A kind of 5. fire-retardant and smoke-inhibiting type PVC with phosphomolybdate according to claim 1 or 4, it is characterised in that the phosphorus
Molybdic acid salt production process is：Preparation method A, preparation method B, preparation method C, preparation method D or preparation method E；
Preparation method A：With deionized water, the saturated solution of zinc sulfate and phosphomolybdic acid is prepared respectively, two kinds of saturated solutions are poured into
In 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus molybdenum
Sour zinc；
Preparation method B：With deionized water, the saturated solution of calcium chloride and phosphomolybdic acid is prepared respectively, two kinds of saturated solutions are poured into
In 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus molybdenum
Sour calcium；
Preparation method C：With deionized water, the saturated solution of ferric trichloride and phosphomolybdic acid is prepared respectively, two kinds of solution are poured into
In 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus molybdenum
Sour iron；
Preparation method D：With deionized water, the saturated solution of nickel sulfate and phosphomolybdic acid is prepared respectively, two kinds of saturated solutions are poured into
In 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus molybdenum
Sour nickel；
Preparation method E：With deionized water, the saturated solution of cobalt chloride and phosphomolybdic acid is prepared respectively, two kinds of saturated solutions are poured into
In 100/ml beakers, filtered after being stirred 3 minutes with glass bar, gained precipitation is put into baking oven and dried 20 minutes, obtains phosphorus molybdenum
Sour cobalt.
6. the preparation method of the fire-retardant and smoke-inhibiting type PVC with phosphomolybdate described in claim 1, it is characterised in that including following
Step：
Step 1：100 parts of polyvinyl chloride resin is taken to be put into container；
Step 2：With mixer by 40 parts of plasticizer, 4 parts of stabilizer, 0.5 part of lubricant, 1.5 parts of anti-flaming smoke-inhibiting agent and PVC trees
100 parts of fat is mixed evenly；
Step 3：The product obtained in step 2 at 155 DEG C~160 DEG C is kneaded 10min with kneading machine；
Step 4：The product obtained in step 3 is moved into vulcanizing press at 160 DEG C~170 DEG C, 10MPa~12MPa pressure
5~8min of lower hot pressing；
Step 5：The product natural cooling that step 4 obtains is taken out, obtains fire-retardant and smoke-inhibiting type PVC.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467845A (en) * | 2018-10-23 | 2019-03-15 | 华北科技学院 | A kind of fire-retardant and smoke-inhibiting type PVC composite material and preparation method |
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| CN101456999A (en) * | 2008-12-30 | 2009-06-17 | 深圳市领亚电子有限公司 | Low smoke high flame retardant polyvinyl chloride composition for wire cable and preparation method |
| CN101974187A (en) * | 2010-11-15 | 2011-02-16 | 江苏宝源高新电工有限公司 | 90-DEG C insulation-grade low-smoke and low-halogen PVC retardant jacket material |
| CN107286494A (en) * | 2016-03-31 | 2017-10-24 | 苏州奥凯高分子材料股份有限公司 | Phosphomolybdic acid zinc fire-resistant smoke-inhibiting PVC sheet material |
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2017
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| CN101456999A (en) * | 2008-12-30 | 2009-06-17 | 深圳市领亚电子有限公司 | Low smoke high flame retardant polyvinyl chloride composition for wire cable and preparation method |
| CN101974187A (en) * | 2010-11-15 | 2011-02-16 | 江苏宝源高新电工有限公司 | 90-DEG C insulation-grade low-smoke and low-halogen PVC retardant jacket material |
| CN107286494A (en) * | 2016-03-31 | 2017-10-24 | 苏州奥凯高分子材料股份有限公司 | Phosphomolybdic acid zinc fire-resistant smoke-inhibiting PVC sheet material |
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| CN109467845A (en) * | 2018-10-23 | 2019-03-15 | 华北科技学院 | A kind of fire-retardant and smoke-inhibiting type PVC composite material and preparation method |
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