A kind of compositions of additives for polymer and its preparation method and consisting of flame-proofed thermoplastic polymer in-mold moulding material
The application is application number is 201410592746.6, and the applying date is 2014-10-29, and invention and created name is the divisional application of " a kind of compositions of additives for polymer and its preparation method and consisting of flame-proofed thermoplastic polymer in-mold moulding material ".
Technical field
The present invention relates to a kind of compositions of additives for polymer, be specifically related to a kind of dialkylphosphinic salts containing phostonic acid salt and/or phosphite and its preparation method and consisting of flame-proofed thermoplastic polymer in-mold moulding material.
Background technology
Dialkylphosphinic salts, is widely used as fire retardant, it is known that it can be synthesized by diverse ways. It is used as fire retardant at polyester, the preparation methoies that DE19910232, US6248921 two sections of patent disclosure a kind of two replace metal phosphinates as patent DE4430932 discloses two replacement metal phosphinates. The preparation method that US Patent No. 6359171B1 discloses a kind of dialkyl phosphinic acid aluminum, the method synthesizes monoalkyl phosphonate initially with yellow phosphorus, then utilize free radical cause be hydrolyzed after vinylation sour after be obtained by reacting dialkyl phosphinic acid aluminum fire retardant with aluminium salt.
Aluminum diethylphosphinate is the novel halogen-free flame-retardant agent of a kind of thermally-stabilised height, excellent fireproof performance. But find in actual applications, it is added with the flame-retardant polymer moulding compound of aluminum diethylphosphinate in the course of processing, the screw rod of compounding combination unit can be brought the corrosion of especially severe, and ambient polymer is damaged, especially can cause the degraded of polymer. It is primarily due to dialkyl phosphinic acid that dialkyl phosphinic acid aluminum is ionized under the high temperature conditions to metal ion selectively complexation, particularly the nickel of rustless steel clock, chromium etc. had higher selectivity so that in flame-retardant polymer is processed, screw rod is had heavy corrosion at dialkylphosphinic salts.We also find under study for action, and the corrosivity of screw rod is become even more serious along with the growth of its alkyl chain by dialkylphosphinic salts. In actual applications it was also found that the flame-retardant polymer being added with aluminum diethylphosphinate puts part whiteness is short of to some extent.
We are mixed into part phostonic acid salt and/or a small amount of phosphinate by the discovery studied in dialkylphosphinic salts, can alleviate the flame-retardant polymer moulding compound being added with dialkylphosphinic salts corrosion to compounding combination unit screw rod in the course of processing to a great extent, and on other performances of flame-retardant polymer almost without impact.
Patent CN103154110 discloses and is mixed into 1-80% phosphinate in dialkylphosphinic salts and plays the effect of stabilizer, we have found that, because the heat decomposition temperature of aluminium phosphite is relatively low, and in engineering plastics in the high temperature extrusion course of processing (major part engineering plastics processing temperature is above 200 DEG C) easily decomposes, its decomposition can produce meet air spontaneously inflammable severe toxicity hydrogen phosphide other, we have discovered that its content is more beneficial for corrosion resistance, stability and safety thereof lower than 1%.
We also find to be mixed into part phostonic acid salt and/or a small amount of phosphite in dialkylphosphinic salts by studying simultaneously so that be added with the flame-retardant polymer moulding compound product whiteness of dialkylphosphinic salts more preferably.
Summary of the invention
In order to solve to be added with the whiteness of the flame-retardant polymer of dialkylphosphinic salts and its moulding compound problem to the corrosion of compounding combination unit screw rod in the course of processing, it is an object of the invention to provide a kind of compositions of additives in dialkylphosphinic salts containing phostonic acid salt and/or phosphite structure and consisting of flame-proofed thermoplastic polymer in-mold moulding material. This additive application is in polymer, in the course of processing compounding combination unit Screw Corrosion degree is little, the ambient polymer extent of damage is little, and obtained flame-retardant polymer molding compositions product whiteness is better, and on other performances of flame-retardant polymer almost without impact.
The preparation method that another object of the present invention is to provide the above-mentioned compositions of additives for polymer that a kind of technological process is simple, reaction time is short, gross production rate is high.
The present invention is achieved by the following technical solutions:
A kind of compositions of additives for polymer, including:
Component A:80wt%-99.99wt% has the dialkylphosphinic salts of structure shown in formula (I),
Wherein, R1, R2 is identical or different, is expressed as ethyl, propyl group and/or butyl;
M is Mg, Ca, Al, Zn, Fe;
M is 2 to 4;
Component B:0wt%-20wt% has the phostonic acid salt of structure shown in formula II,
(II)
Wherein, R3 is expressed as ethyl, propyl group and/or butyl; M is Mg, Ca, Al, Zn, Fe; M is 1 to 4;
Component C:0wt%-0.9wt% has the phosphite of structure shown in formula III;
(III)
Wherein, R3 is expressed as H; M is Mg, Ca, Al, Zn, Fe; M is 1 to 4;
It is 0wt% when component B, C difference, and the summation of A, B and component C is always 100wt%.
Preferably, for the compositions of additives of polymer, it comprises:
The component A of 95wt%-99.99wt%;
The component B of 0wt%-5wt%;
The component C of 0wt%-0.9wt%;
It is 0wt% when component B, C difference, and the summation of A, B and component C is always 100wt%.
Described polymer is PBT, nylon, PPE, TPE, TPU, high-temperature nylon or epoxy resin, it is preferable that PBT, nylon or PPE.
The preparation method of the above-mentioned a kind of compositions of additives for polymer of the present invention, can one of as follows:
Method one:
A) hypophosphorous acid or its salt are added in a solvent, with olefine reaction under initiator and reaction promoter effect, the dialkyl phosphinic acid obtained or its saline solution, its solution metallizing thing reactant aqueous solution can prepare dialkylphosphinic salts;
B) adding phosphorous acid or its salt in a solvent, with olefine reaction under initiator and reaction promoter effect, obtain phostonic acid or its saline solution, its solution metallizing thing reactant aqueous solution can prepare phostonic acid salt;
C) phosphorous acid or its salt metallizing thing are obtained by reacting phosphite;
D) product of step a and step b and/or step c gained mixed and get final product;
Wherein, described hypophosphites is sodium hypophosphite or potassium hypophosphite; Described phosphite is sodium phosphite or potassium phosphite;
Described metallic compound is the metallic compound of Mg, Ca, Al, Zn, Fe;
Or method two:
By miscible to dialkyl phosphinic acid or its saline solution and phostonic acid or its saline solution and/or phosphorous acid or its saline solution, then metallizing thing solution reaction and get final product.
Described solvent is water; Described initiator is azo-initiator, organic peroxide evocating agent or inorganic peroxide initiator; Described alkene is one or both the mixture in ethylene and/or butylene.
Described reaction promoter is sodium borohydride or potassium borohydride.
A kind of compositions of additives for polymer of the present invention is as the purposes of fire retardant.
The invention also discloses a kind of flame-proofed thermoplastic polymer in-mold moulding material comprising above-mentioned compositions of additives, including the additive for polymer of 5-20 weight portion, the polymer of 50-70 weight portion or its mixture; Wherein, the additive for polymer includes:
Component A:80wt%-99.99wt% has the dialkylphosphinic salts of structure shown in formula (I),
Wherein, R1, R2 is identical or different, is expressed as ethyl, propyl group and/or butyl;
M is Mg, Ca, Al, Zn, Fe;
M is 2 to 4;
Component B:0wt%-20wt% has the phostonic acid salt of structure shown in formula II,
(II)
Wherein, R3 is expressed as ethyl, propyl group and/or butyl; M is Mg, Ca, Al, Zn, Fe; M is 1 to 4;
Component C:0wt%-0.9wt% has the phosphite of structure shown in formula III;
(III)
Wherein, R3 is expressed as H; M is Mg, Ca, Al, Zn, Fe; M is 1 to 4;
It is 0wt% when component B, C difference, and the summation of A, B and component C is always 100wt%.
Described polymer is polyester, nylon, high-temperature nylon, PPE, TPE, TPU or epoxy resin, it is preferable that polyester, nylon or PPE.
Flame-proofed thermoplastic polymer in-mold moulding material of the present invention, also includes the glass fibre of 15-30 weight portion and other auxiliary agents of 1-5 weight portion.
The present invention compared with prior art, has the advantages that
1) dialkylphosphinic salts containing phostonic acid salt and/or phosphite structure that the present invention prepares, additive as flame-retardant polymer, this additive application is in polymer, in the course of processing, greatly reduce the dialkylphosphinic salts flame-retardant polymer as additive to compounding combination unit Screw Corrosion degree, also reduce while reducing apparatus processing cost and the course of processing is frequently changed the energy and the artificial loss that screw rod causes, significantly widened this plastic additive range of application in the market;
2) dialkylphosphinic salts containing phostonic acid salt and/or phosphite structure that the present invention prepares, additive as flame-retardant polymer, this additive application is in polymer so that the polymer obtained through extrusion molding is put the polymer that part whiteness is better than conventional dialkylphosphinic salts modified and put part;
3) this additive preparation technology is simple, safety, and production cost is low, extremely has practicality.
Detailed description of the invention
Further illustrating the present invention below by detailed description of the invention, following example are the present invention preferably embodiment, but embodiments of the present invention are not by the restriction of following embodiment.
Embodiment 1: the preparation of one-component A aluminum diethylphosphinate
By 1060.0g(10mol) a hydration sodium hypophosphite, 9.1g(0.3%mol hypophosphorous acid ion) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, 3.0g sodium borohydride and 1500g water add in autoclave, evacuate, replace 3 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 95 DEG C of constant temperature 5h, it is warming up to 100 DEG C, 18.1g(0.6%mol hypophosphorous acid ion is added again continuously in 5h) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain diethyl phosphinic acid sodium water solution 3169.3g, be equivalent to that ethylene absorption amount is 579.1g(theoretical amount 103.4%).
31P-NMR analyzes:
Diethyl phosphinic acid mol content: 98.1%
Ethyl phosphonous acid mol content: 0%
Phosphorous acid mol content: 0%
Other mol content: 1.9%
Take its aqueous solution 949.9g, add 2000g water, heated and stirred is to 90 DEG C, drip by 333.0g(0.5mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1332g water, 90 DEG C of insulation 1h, filter, and with 2000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains aluminum diethylphosphinate: 374.6g, yield: 96.05%.
Embodiment 2: the preparation of one-component B ethyl phosphonous acid aluminum
By 1171.4g(10mol) 70% phosphorous acid, 9.1g(0.3%mol phosphorous acid) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane and 3.0g sodium borohydride, evacuate, replace 5 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 90 DEG C of constant temperature 10h, and adding 18.1g(0.6%mol phosphorous acid continuously) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain ethyl phosphonous acid solution 1487.5g, be equivalent to that ethylene absorption amount is 285.9g(theoretical amount 102.1%).
31P-NMR analyzes:
Ethyl phosphonous acid mol content: 98.8%
Phosphorous acid mol content: 0%
Other mol content: 1.2%
Take its solution 223.1g, add 1000g water, heated and stirred is to 90 DEG C, drip by 333.0g(0.5mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1332g water, 90 DEG C of insulation 1h, filter, and with 1000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains ethyl phosphonous acid aluminum: 179.0g, yield: 93.98%.
Embodiment 3: the preparation of one-component C aluminium phosphite
1080g, 20wt%(1.0mol being instilled in 1110.0g, 20wt% (0.33mol) aluminum sulfate aqueous solution 1h) constant temperature is in the five hydration sodium phosphite aqueous solutions of 80 DEG C, filter, the 1000ml water washing three times of gained filter cake, obtains aluminium phosphite 94.27g, yield: 95.22%.
Embodiment 4:
Prepare aluminum diethylphosphinate with embodiment 1,5000g aluminum diethylphosphinate, 0.98g ethyl phosphonous acid aluminum are added high mixer and mixes 30 minutes, obtains polymeric additive compositions.
Wherein, ethyl phosphonous acid aluminum content is the 0.02wt%(mass fraction accounting for total content, lower same).
Embodiment 5:
5000g aluminum diethylphosphinate, 5.0g ethyl phosphonous acid aluminum are added high mixer and mixes 30 minutes, obtains polymeric additive compositions.
Wherein, ethyl phosphonous acid aluminum content is 0.1wt%.
Embodiment 6:
5000g aluminum diethylphosphinate, 48.4g ethyl phosphonous acid aluminum are added high mixer and mixes 30 minutes, obtains polymeric additive compositions.
Wherein, ethyl phosphonous acid aluminum content is 0.96wt%.
Embodiment 7:
5000g aluminum diethylphosphinate, 250.0g ethyl phosphonous acid aluminum are added high mixer and mixes 30 minutes, obtains polymeric additive compositions.
Wherein, ethyl phosphonous acid aluminum content is 4.8wt%.
Embodiment 8:
5000g aluminum diethylphosphinate, 500.0g ethyl phosphonous acid aluminum are added high mixer and mixes 30 minutes, obtains polymeric additive compositions.
Wherein, ethyl phosphonous acid aluminum content is 9.1wt%.
Embodiment 9:
5000g ethyl-butyl phosphinic acid aluminum, 1200.0g ethyl phosphonous acid aluminum are added high mixer and mixes 30 minutes, obtains polymeric additive compositions.
Wherein, ethyl phosphonous acid aluminum content is 19.4wt%.
Embodiment 10:
With embodiment 1, prepare 20wt% diethyl phosphinic acid sodium water solution, and addition 0.1wt%(ethyl phosphonous acid accounts for diethyl phosphinic acid mass percent in diethyl phosphinic acid sodium water solution, ethyl phosphonous acid sodium down together), reacts with theoretical amount 20wt% aluminum sulfate aqueous solution and prepares compositions of additives.
Ethyl phosphonous acid aluminum content is 0.1wt%.
Embodiment 11:
With embodiment 1, prepared 20wt% diethyl phosphinic acid sodium water solution, and in diethyl phosphinic acid sodium water solution, add the ethyl phosphonous acid sodium of 1.0wt%, react with theoretical amount 20wt% aluminum sulfate aqueous solution and prepare compositions of additives.
Ethyl phosphonous acid aluminum content 0.99wt%.
Embodiment 12:
With embodiment 1, prepared 20wt% diethyl phosphinic acid sodium water solution, and in diethyl phosphinic acid sodium water solution, add the ethyl phosphonous acid sodium of 10wt%, react with theoretical amount 20wt% aluminum sulfate aqueous solution and prepare compositions of additives.
Ethyl phosphonous acid aluminum content 9.1wt%.
Embodiment 13:
With embodiment 1, prepared 20wt% diethyl phosphinic acid sodium water solution, and in diethyl phosphinic acid sodium water solution, add the ethyl phosphonous acid sodium of 25wt%, react with theoretical amount 20wt% aluminum sulfate aqueous solution and prepare compositions of additives.
Ethyl phosphonous acid aluminum content 20wt%.
Embodiment 14:
By 1060.0g(10mol) a hydration sodium hypophosphite, 2.2g(0.01mol) five hydration sodium phosphite, 9.1g(0.3%mol hypophosphorous acid ion) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, 3.0g sodium borohydride and 1500g water add in autoclave, evacuate, replace 3 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 95 DEG C of constant temperature 5h, it is warming up to 100 DEG C, 18.1g(0.6%mol hypophosphorous acid ion is added again continuously in 5h) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain diethyl phosphinic acid sodium water solution 3173.6g, be equivalent to that ethylene absorption amount is 581.2g(theoretical amount 103.7%).
31P-NMR analyzes:
Diethyl phosphinic acid mol content: 99.9%
Ethyl phosphonous acid mol content: 0.1% (0.09wt%, is the mass content after aluminium salt for the conversion of mol content, lower same)
Phosphorous acid mol content: 0%
Take its aqueous solution 951.2g, add heating 2000g water, to 90 DEG C, drip by 333.7g(0.501mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1333g water, 90 DEG C of insulation 1h, filter, and with 2000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains compositions of additives: 376.0g, yield (containing ethyl phosphonous acid aluminum, lower same): 96.31%.
Embodiment 15:
By 1060.0g(10mol) a hydration sodium hypophosphite, 21.6g(0.1mol) five hydration sodium phosphites, 9.1g(0.3%mol hypophosphorous acid ion) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, 3.0g potassium borohydride and 1500g water add in autoclave, evacuate, replace 3 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 87 DEG C of constant temperature 5h, it is warming up to 95 DEG C, 18.1g(0.6%mol hypophosphorous acid ion is added again continuously in 5h) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain diethyl phosphinic acid sodium water solution 3193.0g, be equivalent to that ethylene absorption amount is 581.2g(theoretical amount 103.3%).
31P-NMR analyzes:
Diethyl phosphinic acid mol content: 98.9%
Ethyl phosphonous acid mol content: 1.1% (0.97wt%)
Phosphorous acid mol content: 0%
Take its aqueous solution 957.9g, add 2000g water, heating is to 90 DEG C, drip by 339.7g(0.510mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1359g water, 90 DEG C of insulation 1h, filter, and with 2000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains compositions of additives: 376.3g, yield: 95.56%.
Embodiment 16:
By 1060.0g(10mol) a hydration sodium hypophosphite, 108g(0.5mol) five hydration sodium phosphites, 9.1g(0.3%mol hypophosphorous acid ion) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, 3.0g potassium borohydride and 1500g water add in autoclave, evacuate, replace 3 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 87 DEG C of constant temperature 5h, it is warming up to 95 DEG C, 27.2g(0.9%mol hypophosphorous acid ion is added again continuously in 5h) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain diethyl phosphinic acid sodium water solution 3305.4g, be equivalent to that ethylene absorption amount is 598.1g(theoretical amount 104.2%).
31P-NMR analyzes:
Diethyl phosphinic acid mol content: 95.2%
Ethyl phosphonous acid mol content: 4.8% (4.2wt%)
Phosphorous acid mol content: 0%
Take its aqueous solution 991.0g, add 2000g water, heating is to 90 DEG C, drip by 366.3g(0.550mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1465g water, 90 DEG C of insulation 1h, filter, and with 2000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains compositions of additives: 391.2g, yield: 95.64%. 409.5
Embodiment 17:
By 1060.0g(10mol) a hydration sodium hypophosphite, 216g(1.0mol) five hydration sodium phosphites, 9.1g(0.3%mol hypophosphorous acid ion) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, 3.0g potassium borohydride and 1500g water add in autoclave, evacuate, replace 3 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 87 DEG C of constant temperature 5h, it is warming up to 95 DEG C, 27.2g(0.9%mol hypophosphorous acid ion is added again continuously in 5h) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain diethyl phosphinic acid sodium water solution 3425.6g, be equivalent to that ethylene absorption amount is 610.3g(theoretical amount 103.8%).
31P-NMR analyzes:
Diethyl phosphinic acid mol content: 91.2%
Ethyl phosphonous acid mol content: 8.8% (7.8wt%)
Phosphorous acid mol content: 0%
Take its aqueous solution 1027.7g, add 2000g water, heating is to 90 DEG C, drip by 399.6g(0.600mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1599g water, 90 DEG C of insulation 1h, filter, and with 2000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains compositions of additives: 409.2g, yield: 95.59%.
Embodiment 18:
By 1060.0g(10mol) a hydration sodium hypophosphite, 540.0g(2.5mol) five hydration sodium phosphites, 9.1g(0.3%mol hypophosphorous acid ion) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, 3.0g potassium borohydride and 1500g water add in autoclave, evacuate, replace 3 times with nitrogen, evacuate, it is filled with ethylene again through decompressor and to control pressure be 2.0MPa, heat to 87 DEG C of constant temperature 5h, it is warming up to 95 DEG C, 32.3g(1.2%mol hypophosphorous acid ion is added again continuously in 5h) 1, 1-di-tert-butyl peroxide-3, 3, 5-trimethyl-cyclohexane, it is warming up to 100 DEG C, insulation 1h, cooling emptying, obtain diethyl phosphinic acid sodium water solution 3804.0g, be equivalent to that ethylene absorption amount is 659.6g(theoretical amount 104.7%). 630
31P-NMR analyzes:
Diethyl phosphinic acid mol content: 80.8%
Ethyl phosphonous acid mol content: 19.2% (17.2wt%)
Phosphorous acid mol content: 0%
Take its aqueous solution 1141.2g, add 2000g water, heating is to 90 DEG C, drip by 499.5g(0.750mol in 1.5h) the 20% Patent alum solution that is configured to of Patent alum and 1998g water, 90 DEG C of insulation 1h, filter, and with 2000L water washing 3 times, the filter cake obtained 130 DEG C is dried to constant weight, obtains compositions of additives: 460.1g, yield: 94.82%.
Embodiment 19:
With embodiment 1, (0.1%mol is for accounting for diethyl phosphinic acid sodium mol percentage composition to add the sodium phosphite of 0.1mol% in diethyl phosphinic acid sodium water solution, lower same), compositions of additives is prepared with theoretical amount reacting aluminum sulfate, aluminium phosphite content 0.075wt%(aluminium phosphite quality accounts for phosphorous acid and aluminum diethylphosphinate gross mass percentage composition, lower same)
Embodiment 20:
With embodiment 1, diethyl phosphinic acid sodium water solution adds the sodium phosphite of 1.0mol%, prepare compositions of additives, aluminium phosphite content 0.75wt% with theoretical amount reacting aluminum sulfate.
Embodiment 21:
5000g aluminum diethylphosphinate, 1g aluminium phosphite are added high mixer and mix 30 minutes, obtains polymeric additive compositions.
Wherein, aluminium phosphite content is 0.02wt%.
Embodiment 22:
5000g aluminum diethylphosphinate, 5.0g aluminium phosphite are added high mixer and mix 30 minutes, obtains polymeric additive compositions.
Wherein, aluminium phosphite mass content is 0.10%.
Embodiment 23:
5000g aluminum diethylphosphinate, 45.0g aluminium phosphite are added high mixer and mix 30 minutes, obtains polymeric additive compositions.
Wherein, aluminium phosphite mass content is 0.89%.
Embodiment 24:
With embodiment 1, diethyl phosphinic acid sodium water solution adds the ethyl phosphonous acid sodium of 1mol% and the sodium phosphite of 1mol%, reacting with theoretical amount aluminum sulfate aqueous solution and prepare compositions of additives, ethyl phosphonous acid aluminum content 0.95wt%, aluminium phosphite content is 0.74wt%.
Embodiment 25:
5000g aluminum diethylphosphinate, 50g aluminium phosphite and 40g ethyl phosphonous acid aluminum are added high mixer mix 30 minutes, obtain polymeric additive compositions.
Wherein, ethyl phosphorous acid aluminum content is 0.98wt%, and phosphonous acid aluminum content is 0.78wt%.
Comparative example 1:
5000g aluminum diethylphosphinate and 60g aluminium phosphite are added high mixer mix 30 minutes, obtain polymeric additive compositions.
Wherein, aluminium phosphite content is 1.19wt%.
For each component of the additive of plastics in table 1 embodiment 1-25
By weight 10:50:30:10, the polymeric additive compositions of embodiment 1-25 and comparative example 1 gained is mixed that (embodiment 49 is that the blank sample without compositions of additives contrasts with PBT, glass, auxiliary agent at 230-260 DEG C, namely weight ratio is 0:50:30:10 mixing), extrude from Bitruder, prepare flame-proofed thermoplastic polymer in-mold moulding material, its combustibility and mechanical property are tested in sample preparation, record result referring to table 2 below:
Table 2 adds the flame-retardant PBT material property parameter table that polymeric additive compositions prepares
Continued 2:
Each performance test is undertaken by following standard:
1, hot strength: GB1040-1992 plastic tensile method for testing performance;
2, bending strength: GB9341-2000 Plastics-Oetermination of flexural properties method;
3, amount of deflection: GB9341-2000 Plastics-Oetermination of flexural properties method;
4, combustibility: UL94 Plastics Combustion performance test;
5, �� D(Screw Corrosion degree) determination: when 100t polymer molding compositions often processed by compounding combination unit, measure the diameter (before D and after D) of screw rod before and after producing, calculate after producing 100t polymer molding compositions, before the difference DELTA D=D of screw diameter after-D, �� D value is more big, represents that Screw Corrosion is more serious.
6, colourity testing standard:
Colourity test carries out on Color-Eye-7000A colour photometer (GretagMacbeth company), and concrete method of testing is:
1) resin is injection molded into the thick color plate of 2mm;
2) composition according to resin, the parameter such as calibrating that Lab value tester is set;
3) colour table being placed in test window, click " test " button, carry out the test of Lab value, system can show corresponding Lab value.
For this colorant of PBT, L-value is more big, and color is more white, is more easy to color matching.