CN104861635A - Material mixing method for stretch-proof antiflaming TPU cable material - Google Patents
Material mixing method for stretch-proof antiflaming TPU cable material Download PDFInfo
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Abstract
The invention relates to a material mixing method for a stretch-proof antiflaming TPU cable material. The method comprises the steps: using a high-speed material mixer to mix a TPU raw material A of particle state, a TCEP fire retardant B of liquid state, a DMMP fire retardant C of liquid state, an APP fire retardant D of powder state, a zinc borate fire retardant E of powder state and a flexibilizer H of powder state according to certain proportion. The material mixing method for the stretch-proof antiflaming TPU cable material is capable of uniformly mixing the TPU material and the modified material, and the binding force of the modifier on the TPU material is strong.
Description
Technical field
The present invention relates to a kind of method for mixing of stretch-proof flame-retardant type TPU CABLE MATERIALS.
Background technology
Along with the development of modern industry, various Modern appliances facility (as communications service, elevator, Telephone set with music, locomotive fixture wire etc.) is also more and more higher with the requirement of electric wire to each side.Wherein the quality of Insulation Material performance directly affects quality, working (machining) efficiency, the range of application of electric wire.Common PVC CABLE MATERIALS, due to containing a large amount of chlorine element, can give out a large amount of dense smoke and people can be allowed to suffocate, affect visibility meter, and produce some carcinogenic substances and HCl gas, cause serious harm to environment during burning., in described specific environment, easily there is damaged and cracking in the shortcomings such as common PVC Insulation Material also also exists acid and alkali-resistance, heat resistant oils, and organic solvent resistance is poor.Thermoplastic polyurethane (TPU) is a kind of organic polymer synthetic materials of novel properties excellence, have excellent physicals, such as wear resistance, screen resilience is all better than common PVC, ageing resistance is better than rubber, can be described as the optimal material of alternative PVC.But TPU self does not have flame retardant properties, during combustion synthesis in air, flame is very violent and with strong black smoke, and has serious drip phenomenon.And the cable stretch-proof performance that traditional TPU CABLE MATERIALS is produced is not good.
Therefore seeking TPU material to carry out modification, to become stretch-proof flame-retardant type TPU CABLE MATERIALS particularly important, and wherein first need general T PU CABLE MATERIALS to mix with modifying material, then just melting co-extrusion can be carried out, and in the mixing process of traditional method, TPU material mix with modifying material exist even not, the defects such as the bonding force of properties-correcting agent on TPU material is firm not, finally cause the stretch-proof flame-retardant type TPU CABLE MATERIALS performance of modification to fall flat.Therefore seeking one makes TPU material mix with modifying material, and the method for mixing of the stretch-proof flame-retardant type TPU CABLE MATERIALS of the firm binding force of properties-correcting agent on TPU material is particularly important.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide one that TPU material is mixed with modifying material, the method for mixing of the stretch-proof flame-retardant type TPU CABLE MATERIALS of the firm binding force of properties-correcting agent on TPU material.
The object of the present invention is achieved like this:
A method for mixing for stretch-proof flame-retardant type TPU CABLE MATERIALS, adopts high speed mixer the APP fire retardant D of the DMMP fire retardant C of the TCEP fire retardant B of the TPU raw material A of particle state, liquid state, liquid state, pulverulence, the zinc borate flame retardant E of pulverulence and the toughner H of pulverulence to be mixed according to a certain ratio, above-mentioned high speed mixer comprises mixing tank, from protruding upward first turning axle bottom it in described mixing tank, first turning axle stretch out the half being highly less than mixing tank height, described first turning axle is tubular shaft, the second turning axle is provided with in described first turning axle, the first turning axle upper end is stretched out at the top of the second turning axle, the middle part of described first turning axle is to being outside equipped with the first cutter, described first cutter comprises multiple first rotating knife, first rotating knife comprises the first rotating knife being laterally connected in first rotating arm on the first turning axle and first rotating arm outer end, the blade of described first rotating knife has one, the oblique outer top of this blade is arranged, the top of described second turning axle is to being outside equipped with the second cutter, described second cutter comprises multiple second rotating knife, second rotating knife comprises the second rotating knife being laterally connected in the second pivot arm on the second turning axle and the second pivot arm outer end, the blade of described second rotating knife has two, these two blades respectively oblique outer top and outer lower side are arranged,
Above-mentioned each component proportion (weight proportion) is as follows:
TPU raw material A: 100 parts
TCEP fire retardant B:6 ~ 12 part
DMMP fire retardant C:8 ~ 12 part
APP fire retardant D:5 ~ 10 part
Zinc borate flame retardant E:5 ~ 10 part
Toughner H:5 ~ 10 part
The batch mixing step adopting this high speed mixer each component to be carried out mixing is as follows:
One, first compound F is prepared
1, first mixing tank be preheated to 35 DEG C and keep 2 minutes, the A of the particle state of 50% is put into mixing tank, preheating is carried out 3 minutes to A, making A reach 35 DEG C completely;
2, the B of the liquid state of 70% is poured into, first the second cutter reverses 30 seconds with 60r/min, and then the first cutter rotates forward 60 seconds with 120r/min, and then the first cutter and the second cutter all rotate 2 minutes with 250r/min speed, wherein the first cutter rotates forward, the second cutter reversion;
3, the D of pulverulence of the 80% and H of the pulverulence of 60% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 8 minutes, in these 8 minutes, mixing tank temperature rises to 40 DEG C by original 35 DEG C;
4, the B of the liquid state of residue 30% is poured again into, first the second cutter rotates forward 30 seconds with 100r/min, and then the first cutter rotates forward 60 seconds with 200r/min, and then the first cutter and the second cutter all rotate 3 minutes with 350r/min speed, wherein the first cutter reversion, the second cutter rotates forward;
5, add the D of the pulverulence of residue 20% again, the first cutter and the second cutter first rotate 1 minute with 150r/min speed, and wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 4 minutes, form first compound F, release from charging basket;
Two, second batch compound G is prepared
1, first mixing tank be preheated to 35 DEG C and keep 2 minutes, the A of the particle state of residue 50% is put into mixing tank, preheating is carried out 3 minutes to A, making A reach 35 DEG C completely;
2, the C of the liquid state of 70% is poured into, first the second cutter reverses 30 seconds with 60r/min, and then the first cutter rotates forward 60 seconds with 120r/min, and then the first cutter and the second cutter all rotate 2 minutes with 250r/min speed, wherein the first cutter rotates forward, the second cutter reversion;
3, the E of pulverulence of the 80% and H of the pulverulence of 40% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 8 minutes, in these 8 minutes, mixing tank temperature rises to 40 DEG C by original 35 DEG C;
4, the C of the liquid state of residue 30% is poured again into, first the second cutter rotates forward 30 seconds with 100r/min, and then the first cutter rotates forward 60 seconds with 200r/min, and then the first cutter and the second cutter all rotate 3 minutes with 350r/min speed, wherein the first cutter reversion, the second cutter rotates forward;
5, the E of the pulverulence of residue 20% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, and wherein the first cutter rotates forward, the second cutter reversion, and then rotating speed is promoted to 350r/min rotates 4 minutes, form second batch compound G;
Three, first compound F mixes with second batch compound G
In mixing tank, pour first compound F into, carry out slight uniform stirring with second batch compound G, the first cutter and the second cutter first rotate 1 minute with 10r/min speed, and now the first cutter rotates forward, the second cutter reversion; Then the first cutter and the second cutter rotate 1 minute with 10r/min speed again, now the first cutter reversion, and the second cutter rotates forward.
Preferred as one, the length of described first rotating arm is greater than the length of the second pivot arm, and the size of described second rotating knife is the half of the first rotating knife size.
Preferred as one, the inwall lower semisection of described mixing tank has been arranged circumferentially multiple shock projection, and clash into projection cross section triangular in shape, a leg-of-mutton wedge angle points to the second cutter.
Compared with prior art, the invention has the beneficial effects as follows:
The method for mixing of stretch-proof flame-retardant type TPU CABLE MATERIALS of the present invention has TPU material is mixed with modifying material, the advantage of the firm binding force of properties-correcting agent on TPU material, such that product stretch-proof performance is better, flame retardant properties is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high speed mixer of the method for mixing of stretch-proof flame-retardant type TPU CABLE MATERIALS of the present invention.
Wherein:
Mixing tank 1
First turning axle 2
First cutter 3, first rotating arm 3.1, first rotating knife 3.2
Second turning axle 4
Second cutter 5, second pivot arm 5.1, second rotating knife 5.2
Clash into projection 6.
Embodiment
The present invention relates to a kind of method for mixing of stretch-proof flame-retardant type TPU CABLE MATERIALS, adopt high speed mixer by the TPU(thermoplastic polyurethane of particle state) raw material A, liquid state TCEP(tri-(2-propyloic) phosphine) fire retardant B, liquid state DMMP(dimethyl methyl phosphonate) fire retardant C, pulverulence APP(ammonium polyphosphate) fire retardant D, the zinc borate flame retardant E of pulverulence and the toughner H of pulverulence mix according to a certain ratio.
Wherein each component proportion (weight proportion) is as follows:
TPU raw material A: 100 parts
TCEP fire retardant B:6 ~ 12 part
DMMP fire retardant C:8 ~ 12 part
APP fire retardant D:5 ~ 10 part
Zinc borate flame retardant E:5 ~ 10 part
Toughner H:5 ~ 10 part, toughner is nanometer grade silica powder.
See Fig. 1: above-mentioned high speed mixer comprises mixing tank 1, from protruding upward first turning axle 2 bottom it in described mixing tank 1, stretching out of first turning axle 2 is highly less than mixing tank 1 half highly, described first turning axle 2 is tubular shaft, the second turning axle 4 is provided with in described first turning axle 2, the first turning axle 2 upper end is stretched out at the top of the second turning axle 4, power resources can be that the lower end of the first turning axle 2 connects the first power set, the lower end of the second turning axle 4 connects the second power set, or first between turning axle 2 and the lower end of the second turning axle 4 by asynchronous gears meshing, then dynamic device connects one of the first turning axle 2 or second turning axle 4.
The middle part of described first turning axle 2 is to being outside equipped with the first cutter 3, described first cutter 3 comprises multiple first rotating knife, first rotating knife comprises the first rotating knife 3.2 being laterally connected in first rotating arm 3.1 on the first turning axle 2 and first rotating arm 3.1 outer end, the blade of described first rotating knife 3.2 has one, and the oblique outer top of this blade is arranged.
The top of described second turning axle 4 is to being outside equipped with the second cutter 5, described second cutter 5 comprises multiple second rotating knife, second rotating knife comprises the second rotating knife 5.2 being laterally connected in the second pivot arm 5.1 on the second turning axle 4 and the second pivot arm 5.1 outer end, the blade of described second rotating knife 5.2 has two, and these two blades respectively oblique outer top and outer lower side are arranged.
The length of described first rotating arm 3.1 is greater than the length of the second pivot arm 5.1, preferred as one, the length of described first rotating arm 3.1 is 2/3 of mixing tank 1 internal diameter, the length of described second pivot arm 5.1 is 1/3 of mixing tank 1 internal diameter, and the size of described second rotating knife 5.2 is the half of the first rotating knife 3.2 size.
The inwall lower semisection of described mixing tank 1 has been arranged circumferentially multiple shock projection 6, and clash into projection 6 cross section triangular in shape, a leg-of-mutton wedge angle points to the second cutter 5.
The principle of work of high speed mixer:
In batch mixing process, the blade of the second rotating knife is owing to arranging oblique outer top, the compound of mixing tank Internal and external cycle can be made to rotate up cutting shed, first rotating knife also has an oblique outer top of blade to arrange, the compound of epimere inner ring in mixing tank can be made to rotate up cutting shed, and the first rotating knife also has an oblique outer lower side of blade to arrange, the compound of hypomere inner ring in mixing tank can be made to shed to outer lower side circumgyration incision, this partial blend is made to enter the rotating range of the second rotating knife, form a batch mixing circulating path, the compound shed to mixing tank Internal and external cycle through the second rotating knife mixes at the epimere of mixing tank with the compound that epimere inner ring in mixing tank shed by the first rotating knife.
The mode of operation of high speed mixer has two kinds, one is the first turning axle and the second turning axle asynchronous rotation in the same way, inside and outside batch mixing is made to form spiral in the same way, the spiral centrifugal power of mixing tank hypomere is strengthened, material can upwards be rolled more, another kind is the first turning axle and the reverse asynchronous rotation of the second turning axle, makes inside and outside batch mixing form reverse screw, makes material epimere mixing in mixing tank more even.Above two kinds of rotation modes adjust according to practical situation.
Be directed to flame retardant type TPU CABLE MATERIALS, the batch mixing step adopting this high speed mixer each component to be carried out mixing is as follows:
One, first compound F is prepared
1, first mixing tank be preheated to 35 DEG C and keep 2 minutes, the A of the particle state of 50% is put into mixing tank, preheating is carried out 3 minutes to A, making A reach 35 DEG C completely.
2, the B of the liquid state of 70% is poured into, first the second cutter reverses 30 seconds with 60r/min, the liquid concentrating on middle part is scattered, avoid occurring caking phenomenon, then the first cutter rotates forward 60 seconds with 120r/min, and then the first cutter and the second cutter all rotate 2 minutes with 250r/min speed, wherein the first cutter rotates forward, second cutter reversion, makes B be evenly distributed on A particle surface, tentatively mixes.
3, the D of pulverulence of the 80% and H of the pulverulence of 60% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 8 minutes, in these 8 minutes, mixing tank temperature rises to 40 DEG C by original 35 DEG C.Powder materials D and H all surrounds and sticks to particle periphery, and with the shock projection high-speed impact on mixing tank inwall in particle and powder mixing process, temperature can make their molecular motions accelerate to 40 DEG C, and the combination of fire retardant and toughner and particle is more firm.
4, the B of the liquid state of residue 30% is poured again into, first the second cutter rotates forward 30 seconds with 100r/min, the liquid concentrating on middle part is scattered, avoid occurring caking phenomenon, then the first cutter rotates forward 60 seconds with 200r/min, then the first cutter and the second cutter all rotate 3 minutes with 350r/min speed, wherein the first cutter reversion, and the second cutter rotates forward.Allow liquid again be bonded on particle, powder is wrapped in the inside, also have the powder that absorption is remaining.
5, the D of the pulverulence of residue 20% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 4 minutes, their compound molecular motions can be made to accelerate, and the combination of fire retardant and particle is more firm.Form first compound F, release from charging basket.
Two, second batch compound G is prepared
1, first mixing tank be preheated to 35 DEG C and keep 2 minutes, the A of the particle state of residue 50% is put into mixing tank, preheating is carried out 3 minutes to A, making A reach 35 DEG C completely.
2, the C of the liquid state of 70% is poured into, first the second cutter reverses 30 seconds with 60r/min, the liquid concentrating on middle part is scattered, avoid occurring caking phenomenon, then the first cutter rotates forward 60 seconds with 120r/min, and then the first cutter and the second cutter all rotate 2 minutes with 250r/min speed, wherein the first cutter rotates forward, second cutter reversion, makes B be evenly distributed on A particle surface, tentatively mixes.
3, the E of pulverulence of the 80% and H of the pulverulence of 40% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 8 minutes, in these 8 minutes, mixing tank temperature rises to 40 DEG C by original 35 DEG C.Powder materials D all surrounds and sticks to particle periphery, and with the shock projection high-speed impact on mixing tank inwall in particle and powder mixing process, temperature can make their molecular motions accelerate to 40 DEG C, and the combination of fire retardant and toughner and particle is more firm.
4, the C of the liquid state of residue 30% is poured again into, first the second cutter rotates forward 30 seconds with 100r/min, the liquid concentrating on middle part is scattered, avoid occurring caking phenomenon, then the first cutter rotates forward 60 seconds with 200r/min, then the first cutter and the second cutter all rotate 3 minutes with 350r/min speed, wherein the first cutter reversion, and the second cutter rotates forward.Allow liquid again be bonded on particle, powder is wrapped in the inside, also have the powder that absorption is remaining.
5, the E of the pulverulence of residue 20% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 4 minutes, their compound molecular motions can be made to accelerate, and the combination of fire retardant and particle is more firm.Form second batch compound G.
Three, first compound F mixes with second batch compound G
In mixing tank, pour first compound F into, carry out slight uniform stirring with second batch compound G, the first cutter and the second cutter first rotate 1 minute with 10r/min speed, and now the first cutter rotates forward, the second cutter reversion; Then the first cutter and the second cutter rotate 1 minute with 10r/min speed again, now the first cutter reversion, and the second cutter rotates forward.What finally complete flame retardant type TPU CABLE MATERIALS is mixed with operation.
Below enumerate three groups of comparative examples and Datum Argument carried out to above-mentioned method for mixing:
Comparative example one,
TPU raw material A: 100 parts
TCEP fire retardant B:6 part
DMMP fire retardant C:9 part
APP fire retardant D:5 part
Zinc borate flame retardant E:7 part
Toughner H:5 part
The performance index of the CABLE MATERIALS made after adopting conventional method for mixing to the raw material of said components proportioning respectively and the combustionproperty index of CABLE MATERIALS made after adopting method for mixing of the present invention are tested, testing standard adopts fire-protection rating UL-94 standard, the flame retardant rating of the CABLE MATERIALS made after adopting conventional method for mixing be V1(burn within 48 seconds, extinguish), the flame retardant rating of the CABLE MATERIALS made after adopting method for mixing of the present invention be V0(burn within 23 seconds, extinguish).
The fracture property index of the CABLE MATERIALS made after respectively conventional method for mixing being adopted to the raw material of said components proportioning and the fracture property index test of CABLE MATERIALS made after adopting method for mixing of the present invention, the cable breakage elongation that the CABLE MATERIALS made after adopting conventional method for mixing is made is 500%, and the cable breakage elongation that the CABLE MATERIALS made after adopting method for mixing of the present invention is made is 750%.
Comparative example two,
TPU raw material A: 100 parts
TCEP fire retardant B:8 part
DMMP fire retardant C:12 part
APP fire retardant D:7 part
Zinc borate flame retardant E:5 part
Toughner H:8 part
The performance index of the CABLE MATERIALS made after adopting conventional method for mixing to the raw material of said components proportioning respectively and the combustionproperty index of CABLE MATERIALS made after adopting method for mixing of the present invention are tested, testing standard adopts fire-protection rating UL-94 standard, the flame retardant rating of the CABLE MATERIALS made after adopting conventional method for mixing be V1(burn within 53 seconds, extinguish), the flame retardant rating of the CABLE MATERIALS made after adopting method for mixing of the present invention be V0(burn within 27 seconds, extinguish).
The fracture property index of the CABLE MATERIALS made after respectively conventional method for mixing being adopted to the raw material of said components proportioning and the fracture property index test of CABLE MATERIALS made after adopting method for mixing of the present invention, the cable breakage elongation that the CABLE MATERIALS made after adopting conventional method for mixing is made is 550%, and the cable breakage elongation that the CABLE MATERIALS made after adopting method for mixing of the present invention is made is 800%.
Comparative example three,
TPU raw material A: 100 parts
TCEP fire retardant B:12 part
DMMP fire retardant C:8 part
APP fire retardant D:10 part
Zinc borate flame retardant E:10 part
Toughner H:10 part
The performance index of the CABLE MATERIALS made after adopting conventional method for mixing to the raw material of said components proportioning respectively and the combustionproperty index of CABLE MATERIALS made after adopting method for mixing of the present invention are tested, testing standard adopts fire-protection rating UL-94 standard, the flame retardant rating of the CABLE MATERIALS made after adopting conventional method for mixing be V1(burn within 40 seconds, extinguish), the flame retardant rating of the CABLE MATERIALS made after adopting method for mixing of the present invention be V0(burn within 20 seconds, extinguish).
The fracture property index of the CABLE MATERIALS made after respectively conventional method for mixing being adopted to the raw material of said components proportioning and the fracture property index test of CABLE MATERIALS made after adopting method for mixing of the present invention, the cable breakage elongation that the CABLE MATERIALS made after adopting conventional method for mixing is made is 600%, and the cable breakage elongation that the CABLE MATERIALS made after adopting method for mixing of the present invention is made is 850%.
Drawn by above-mentioned three groups of comparative examples, the flame retardant rating of the CABLE MATERIALS that method for mixing of the present invention is made is greater than the CABLE MATERIALS that conventional method for mixing is made, reason is that its mixing is more abundant, and what the molecular material making to have flame retardant properties can be full and uniform is covered with particle, eliminates flammable blind spot.The CABLE MATERIALS that the stretch-proof grade of the CABLE MATERIALS that method for mixing of the present invention is made is made higher than conventional method for mixing, reason is that its mixing is more abundant, and what the toughner making to have stretch-proof performance can be full and uniform is covered with particle.
Claims (3)
1. a method for mixing for stretch-proof flame-retardant type TPU CABLE MATERIALS, is characterized in that adopting high speed mixer the APP fire retardant D of the DMMP fire retardant C of the TCEP fire retardant B of the TPU raw material A of particle state, liquid state, liquid state, pulverulence, the zinc borate flame retardant E of pulverulence and the toughner H of pulverulence to be mixed according to a certain ratio, above-mentioned high speed mixer comprises mixing tank (1), from protruding upward first turning axle (2) bottom it in described mixing tank (1), stretching out of first turning axle (2) is highly less than mixing tank (1) half highly, described first turning axle (2) is tubular shaft, the second turning axle (4) is provided with in described first turning axle (2), the first turning axle (2) upper end is stretched out at the top of the second turning axle (4), the middle part of described first turning axle (2) is to being outside equipped with the first cutter (3), described first cutter (3) comprises multiple first rotating knife, first rotating knife comprises the first rotating knife (3.2) being laterally connected in first rotating arm (3.1) on the first turning axle (2) and first rotating arm (3.1) outer end, the blade of described first rotating knife (3.2) has one, the oblique outer top of this blade is arranged, the top of described second turning axle (4) is to being outside equipped with the second cutter (5), described second cutter (5) comprises multiple second rotating knife, second rotating knife comprises the second rotating knife (5.2) being laterally connected in the second pivot arm (5.1) on the second turning axle (4) and the second pivot arm (5.1) outer end, the blade of described second rotating knife (5.2) has two, these two blades respectively oblique outer top and outer lower side are arranged,
Above-mentioned each component proportion (weight proportion) is as follows:
TPU raw material A: 100 parts
TCEP fire retardant B:6 ~ 12 part
DMMP fire retardant C:8 ~ 12 part
APP fire retardant D:5 ~ 10 part
Zinc borate flame retardant E:5 ~ 10 part
Toughner H:5 ~ 10 part
The batch mixing step adopting this high speed mixer each component to be carried out mixing is as follows:
One, first compound F is prepared
1, first mixing tank be preheated to 35 DEG C and keep 2 minutes, the A of the particle state of 50% is put into mixing tank, preheating is carried out 3 minutes to A, making A reach 35 DEG C completely;
2, the B of the liquid state of 70% is poured into, first the second cutter reverses 30 seconds with 60r/min, and then the first cutter rotates forward 60 seconds with 120r/min, and then the first cutter and the second cutter all rotate 2 minutes with 250r/min speed, wherein the first cutter rotates forward, the second cutter reversion;
3, the D of pulverulence of the 80% and H of the pulverulence of 70% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 8 minutes, in these 8 minutes, mixing tank temperature rises to 40 DEG C by original 35 DEG C;
4, the B of the liquid state of residue 30% is poured again into, first the second cutter rotates forward 30 seconds with 100r/min, and then the first cutter rotates forward 60 seconds with 200r/min, and then the first cutter and the second cutter all rotate 3 minutes with 350r/min speed, wherein the first cutter reversion, the second cutter rotates forward;
5, add the D of the pulverulence of residue 20% again, the first cutter and the second cutter first rotate 1 minute with 150r/min speed, and wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 4 minutes, form first compound F, release from charging basket;
Two, second batch compound G is prepared
1, first mixing tank be preheated to 35 DEG C and keep 2 minutes, the A of the particle state of residue 50% is put into mixing tank, preheating is carried out 3 minutes to A, making A reach 35 DEG C completely;
2, the C of the liquid state of 70% is poured into, first the second cutter reverses 30 seconds with 60r/min, and then the first cutter rotates forward 60 seconds with 120r/min, and then the first cutter and the second cutter all rotate 2 minutes with 250r/min speed, wherein the first cutter rotates forward, the second cutter reversion;
3, the E of pulverulence of the 80% and H of the pulverulence of 30% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, wherein the first cutter rotates forward, second cutter reversion, and then rotating speed is promoted to 350r/min rotates 8 minutes, in these 8 minutes, mixing tank temperature rises to 40 DEG C by original 35 DEG C;
4, the C of the liquid state of residue 30% is poured again into, first the second cutter rotates forward 30 seconds with 100r/min, and then the first cutter rotates forward 60 seconds with 200r/min, and then the first cutter and the second cutter all rotate 3 minutes with 350r/min speed, wherein the first cutter reversion, the second cutter rotates forward;
5, the E of the pulverulence of residue 20% is added again, first cutter and the second cutter first rotate 1 minute with 150r/min speed, and wherein the first cutter rotates forward, the second cutter reversion, and then rotating speed is promoted to 350r/min rotates 4 minutes, form second batch compound G;
Three, first compound F mixes with second batch compound G
In mixing tank, pour first compound F into, carry out slight uniform stirring with second batch compound G, the first cutter and the second cutter first rotate 1 minute with 10r/min speed, and now the first cutter rotates forward, the second cutter reversion; Then the first cutter and the second cutter rotate 1 minute with 10r/min speed again, now the first cutter reversion, and the second cutter rotates forward.
2. the method for mixing of a kind of stretch-proof flame-retardant type TPU CABLE MATERIALS described in 1 is wanted according to right, it is characterized in that the length of described first rotating arm (3.1) is greater than the length of the second pivot arm (5.1), the size of described second rotating knife (5.2) is the half of the first rotating knife (3.2) size.
3. the method for mixing of a kind of stretch-proof flame-retardant type TPU CABLE MATERIALS described in 1 is wanted according to right, it is characterized in that the inwall lower semisection of described mixing tank (1) has been arranged circumferentially multiple shock projection (6), clash into projection (6) cross section triangular in shape, a leg-of-mutton wedge angle points to the second cutter (5).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110000945A (en) * | 2019-03-18 | 2019-07-12 | 新昌县乐意工艺品有限公司 | A kind of plastic products raw material melting preparation facilities |
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| CN103450594A (en) * | 2013-08-30 | 2013-12-18 | 江苏达胜高聚物有限公司 | Production process of inflaming-retarding PVC (Polyvinyl Chloride) cable material |
| CN104493994A (en) * | 2014-12-26 | 2015-04-08 | 天津华庆百胜塑业有限公司 | Plastics mixing device |
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| CN101385951A (en) * | 2008-10-15 | 2009-03-18 | 江苏德美科技有限公司 | Vortex powder mixer |
| CN202036947U (en) * | 2011-04-25 | 2011-11-16 | 江苏建康职业学院 | High-speed mixing device used for drug reaction |
| CN103450594A (en) * | 2013-08-30 | 2013-12-18 | 江苏达胜高聚物有限公司 | Production process of inflaming-retarding PVC (Polyvinyl Chloride) cable material |
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