CN114736501A - Antioxidant plastic formula - Google Patents
Antioxidant plastic formula Download PDFInfo
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- CN114736501A CN114736501A CN202210294989.6A CN202210294989A CN114736501A CN 114736501 A CN114736501 A CN 114736501A CN 202210294989 A CN202210294989 A CN 202210294989A CN 114736501 A CN114736501 A CN 114736501A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 110
- 239000004033 plastic Substances 0.000 title claims abstract description 110
- 230000003078 antioxidant effect Effects 0.000 title claims abstract description 77
- 239000003963 antioxidant agent Substances 0.000 title claims abstract description 76
- 239000006229 carbon black Substances 0.000 claims abstract description 37
- 239000007800 oxidant agent Substances 0.000 claims abstract description 33
- 239000002131 composite material Substances 0.000 claims abstract description 31
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 31
- 230000001590 oxidative effect Effects 0.000 claims abstract description 30
- 239000004611 light stabiliser Substances 0.000 claims abstract description 28
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 28
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 28
- 239000003086 colorant Substances 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 24
- 239000000314 lubricant Substances 0.000 claims abstract description 22
- 239000004417 polycarbonate Substances 0.000 claims abstract description 22
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 22
- 239000002216 antistatic agent Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000004014 plasticizer Substances 0.000 claims abstract description 20
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003063 flame retardant Substances 0.000 claims abstract description 12
- 239000012286 potassium permanganate Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 10
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 8
- 239000004917 carbon fiber Substances 0.000 claims abstract description 8
- 239000003365 glass fiber Substances 0.000 claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010445 mica Substances 0.000 claims abstract description 7
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 62
- 238000002156 mixing Methods 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 26
- 239000004610 Internal Lubricant Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 16
- 239000004605 External Lubricant Substances 0.000 claims description 10
- 238000009472 formulation Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 claims description 6
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- QMMJWQMCMRUYTG-UHFFFAOYSA-N 1,2,4,5-tetrachloro-3-(trifluoromethyl)benzene Chemical compound FC(F)(F)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl QMMJWQMCMRUYTG-UHFFFAOYSA-N 0.000 claims description 4
- VBICKXHEKHSIBG-UHFFFAOYSA-N beta-monoglyceryl stearate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 4
- 239000012188 paraffin wax Substances 0.000 claims description 4
- HJIAMFHSAAEUKR-UHFFFAOYSA-N (2-hydroxyphenyl)-phenylmethanone Chemical compound OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 13
- 238000007254 oxidation reaction Methods 0.000 abstract description 13
- 238000006864 oxidative decomposition reaction Methods 0.000 abstract description 5
- 229920000642 polymer Polymers 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000001954 sterilising effect Effects 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 8
- 230000002195 synergetic effect Effects 0.000 description 7
- 230000001580 bacterial effect Effects 0.000 description 4
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000003712 anti-aging effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000003354 benzotriazolyl group Chemical class N1N=NC2=C1C=CC=C2* 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides an antioxidant plastic formula which comprises the following components in parts by weight: polycarbonate, linear low density polyethylene, composite cement, an oxidant, an antistatic agent, a plasticizer, a light stabilizer, a colorant, a reinforcing agent, a flame retardant, an anti-wear agent, an antioxidant, carbon black and a lubricant; the oxidizing agent is treated on the upper surface of the plastic, so that the oxidizing agent can be reduced with the oxidized part of the plastic, and the potassium permanganate has the characteristic of sterilization, so that the time for oxidative decomposition of the plastic is prolonged; by means of the cooperativity of the reinforcing agent mixed by mica powder, carbon fiber and glass fiber according to the mass ratio of 3:5:7, the heat conductivity and heat resistance of the plastic are enhanced, the interior of the plastic is not easy to overheat, heat is stored, the time for accelerating the oxidation of the plastic due to overhigh temperature is avoided, meanwhile, the adhesiveness and rigidity of the plastic are enhanced, the phenomenon that a polymer chain is broken due to the oxidation of the plastic is effectively avoided, and the anti-oxygen capability of the plastic can be effectively improved.
Description
Technical Field
The invention relates to the technical field of plastics, in particular to an antioxidant plastic formula.
Background
With the continuous development of science and technology and economy, plastic products are more and more widely applied, and plastics are high molecular compounds which are polymerized by addition polymerization or polycondensation reaction by taking monomers as raw materials, commonly called plastics or resins, and can freely change components and form styles. The requirement of people on plastic products is higher and higher, particularly in public places and engineering plastics, the plastic is required to have good oxidation resistance, tensile strength, cracking resistance and wear resistance, the plastic aging can be accelerated by the plastic oxidation, the plastic is accelerated by the influence of light irradiation and temperature, the plastic is discolored and weakened, chains among macromolecules are broken, and the service life of the plastic is shortened.
Disclosure of Invention
In order to solve the problems, the invention provides an antioxidant plastic formula to more exactly solve the background technical problems.
The invention provides an antioxidant plastic formula which comprises the following components in parts by weight: 70-85 parts of polycarbonate, 3-8 parts of linear low-density polyethylene, 1-5 parts of composite cement, 0.5-2 parts of oxidant, 1-1.5 parts of antistatic agent, 1-2 parts of plasticizer, 1-2 parts of light stabilizer, 2-3 parts of colorant, 8-13 parts of reinforcing agent, 4-7 parts of flame retardant, 1-3 parts of wear-resistant agent, 0.5-1.5 parts of antioxidant, 1-3 parts of carbon black and 3-5 parts of lubricant.
Further, the antioxidant of the antioxidant plastic formula comprises any one or any two of 2-6-di-tert-butyl-4-methylphenol (BHT), phosphite ester and hindered phenol which are mixed in equal ratio.
Further, according to the formula of the antioxidant plastic, the reinforcing agent is formed by mixing mica powder, carbon fiber and glass fiber according to a mass ratio of 3:5: 7.
Further, in the antioxidant plastic formula, the light stabilizer is any one or three of hydroxybenzophenone, 2- (2 ' -hydroxy-3 ', 5 ' -di-tert-phenyl) -5-chlorinated benzotriazole and 2-hydroxy-4-n-octoxy benzophenone in an equal ratio.
Further, in the formula of the antioxidant plastic, the oxidant is potassium permanganate powder.
Further, the antioxidant plastic formula comprises an internal lubricant and an external lubricant; the internal lubricant is a composite lubricant consisting of stearic acid monoglyceride, butyl stearate and white oil; the external lubricant is natural paraffin mixed with the internal lubricant.
Further, the antioxidant plastic formula comprises the following components in parts by weight: 70 parts of polycarbonate, 3 parts of linear low-density polyethylene, 2 parts of composite cement, 0.5 part of oxidant, 1.5 parts of antistatic agent, 1 part of plasticizer, 1 part of light stabilizer, 2 parts of colorant, 8 parts of reinforcing agent, 4 parts of flame retardant, 1 part of wear-resisting agent, 1 part of antioxidant, 1 part of carbon black and 3 parts of lubricant.
Further, the antioxidant plastic formula comprises the following components in parts by weight: 75 parts of polycarbonate, 6 parts of linear low-density polyethylene, 4 parts of composite cement, 1 part of oxidant, 1.5 parts of antistatic agent, 1 part of plasticizer, 1 part of light stabilizer, 2 parts of colorant, 5 parts of reinforcing agent, 5 parts of flame retardant, 2 parts of wear-resisting agent, 0.5 part of antioxidant, 2 parts of carbon black and 4 parts of lubricant.
Further, the antioxidant plastic formula comprises the following components in parts by weight: 85 parts of polycarbonate, 8 parts of linear low-density polyethylene, 5 parts of composite cement, 2 parts of an oxidant, 1.5 parts of an antistatic agent, 2 parts of a plasticizer, 2 parts of a light stabilizer, 3 parts of a colorant, 13 parts of a reinforcing agent, 7 parts of a flame retardant, 3 parts of an anti-wear agent, 1.5 parts of an antioxidant, 3 parts of carbon black and 5 parts of a lubricant.
The preparation method of the antioxidant plastic formula specifically comprises the following steps:
s1: sequentially adding a light stabilizer, a coloring agent and carbon black into a stirrer, and mixing and stirring for 5-30 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding an antioxidant, an oxidant and carbon black, and carrying out high-speed mixing for 5-15 minutes to obtain a mixed material c;
s3: mixing the mixed material c with a combustion improver to obtain a mixed material d;
s4: sequentially adding polycarbonate, linear low-density polyethylene, the mixture a, an antistatic agent, a plasticizer, a reinforcing agent, an abrasion-resistant agent, an antioxidant, an internal lubricant, composite cement and the mixed material d, mixing at a high speed for 3-18 minutes to obtain a mixed material b, and placing the mixed material b into a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying a layer of external lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
The invention has the beneficial effects that:
1. by virtue of the sterilization characteristic of potassium permanganate, when the bacterial colony causes oxidative decomposition on plastics, the potassium permanganate can kill the bacterial colony, so that the time for oxidative decomposition of the plastics is prolonged;
2. the treated oxidant can be reduced with the oxidized part of the plastic, so that the oxidation speed of the plastic is slowed down, and the color change caused by the oxidation of the plastic is avoided;
3. after the specific polycarbonate and the linear low-density polyethylene are mixed, the internal lubricant is added to increase the fluidity, and then the composite cement is added, so that the synergistic effect is generated, the wear resistance, the compressive strength, the corrosion resistance, the rigidity and the impact strength of the plastic are increased, and the antioxidant and anti-aging capabilities of the plastic are effectively improved.
4. Through the synergism of the reinforcing agent mixed by mica powder, carbon fiber and glass fiber according to the mass ratio of 3:5:7 and the synergistic effect of the mixed reinforcing agent and linear low-density polyethylene, the thermal conductivity, the heat resistance, the tear resistance, the toughness and the rigidity of the plastic are enhanced, so that the internal part of the plastic is not easy to overheat and store heat, the time for accelerating the oxidation of the plastic due to overhigh temperature is avoided, the adhesion and the rigidity of the plastic are enhanced, the breakage of a polymer chain caused by the oxidation of the plastic is effectively avoided, and the anti-oxidation and anti-aging capabilities of the plastic are effectively improved.
Drawings
FIG. 1 is a process flow diagram of the antioxidant plastic formulation of the present invention;
FIG. 2 is a graph showing the results of tensile strength tests after thermo-oxidative aging of the antioxidant plastic formulation of the present invention;
Detailed Description
In order to more clearly and completely describe the technical scheme of the invention, the invention is further described with reference to the accompanying drawings.
Referring to fig. 1, the present invention was obtained by a great number of experiments;
the first embodiment is as follows:
an antioxidant plastic formula comprises the following components in parts by weight: 70 parts of polycarbonate, 3 parts of linear low-density polyethylene, 2 parts of composite cement, 0.5 part of oxidant, 1.5 parts of antistatic agent, 1 part of plasticizer, 1 part of light stabilizer, 2 parts of colorant, 8 parts of reinforcing agent, 4 parts of flame retardant, 1 part of wear-resisting agent, 1 part of antioxidant, 1 part of carbon black and 3 parts of lubricant.
The preparation method specifically comprises the following steps:
experiment one:
s1: sequentially adding 1 part of light stabilizer, 2 parts of coloring agent and 0.5 part of carbon black into a stirrer, and mixing and stirring for 15 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding 0.5 part of antioxidant, 0.5 part of oxidant and 0.5 part of carbon black to carry out high-speed mixing for 8 minutes to obtain a mixed material c;
s3: mixing the mixed material c with 4 parts of combustion improver to obtain a mixed material d;
s4: sequentially adding 70 parts of polycarbonate, 3 parts of linear low-density polyethylene, a mixture a, 1.5 parts of antistatic agent, 1 part of plasticizer, 8 parts of reinforcing agent, 1 part of wear-resistant agent, 0.5 part of antioxidant, 2 parts of internal lubricant, 2 parts of composite cement and a mixture d, mixing at high speed for 6 minutes to obtain a mixed material b, and placing the mixed material b in a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying 1 part of an outer lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
Experiment two:
s1: sequentially adding 1 part of light stabilizer, 2 parts of coloring agent and 0.5 part of carbon black into a stirrer, and mixing and stirring for 25 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding 0.5 part of antioxidant, 0.5 part of oxidant and 0.5 part of carbon black, and carrying out high-speed mixing for 12 minutes to obtain a mixed material c;
s3: mixing the mixed material c with 4 parts of combustion improver to obtain a mixed material d;
s4: sequentially adding 70 parts of polycarbonate, 3 parts of linear low-density polyethylene, a mixture a, 1.5 parts of antistatic agent, 1 part of plasticizer, 8 parts of reinforcing agent, 1 part of wear-resistant agent, 0.5 part of antioxidant, 2 parts of internal lubricant, 2 parts of composite cement and a mixture d, mixing at a high speed for 16 minutes to obtain a mixed material b, and placing the mixed material b into a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying 1 part of an outer lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
The second embodiment:
an antioxidant plastic formula comprises the following components in parts by weight: 75 parts of polycarbonate, 6 parts of linear low-density polyethylene, 4 parts of composite cement, 1 part of oxidant, 1.5 parts of antistatic agent, 1 part of plasticizer, 1 part of light stabilizer, 2 parts of colorant, 5 parts of reinforcing agent, 5 parts of flame retardant, 2 parts of wear-resisting agent, 0.5 part of antioxidant, 2 parts of carbon black and 4 parts of lubricant.
The preparation method specifically comprises the following steps:
experiment three:
s1: sequentially adding 1 part of light stabilizer, 2 parts of coloring agent and 1 part of carbon black into a stirrer, and mixing and stirring for 15 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding 0.5 part of antioxidant, 1 part of oxidant and 1 part of carbon black, and carrying out high-speed mixing for 8 minutes to obtain a mixed material c;
s3: mixing the mixed material c with 5 parts of a combustion improver to obtain a mixed material d;
s4: adding 75 parts of polycarbonate, 6 parts of linear low-density polyethylene, a mixture a, 1.5 parts of antistatic agent, 1 part of plasticizer, 5 parts of reinforcing agent, 2 parts of wear-resisting agent, 0.5 part of antioxidant, 3 parts of internal lubricant, 4 parts of composite cement and a mixture d in sequence, mixing at high speed for 6 minutes to obtain a mixed material b, and placing the mixed material b into a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying 1 part of an outer lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
Experiment four:
s1: sequentially adding 1 part of light stabilizer, 2 parts of coloring agent and 1 part of carbon black into a stirrer, and mixing and stirring for 25 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding 0.5 part of antioxidant, 1 part of oxidant and 1 part of carbon black, and carrying out high-speed mixing for 12 minutes to obtain a mixed material c;
s3: mixing the mixed material c with 5 parts of a combustion improver to obtain a mixed material d;
s4: adding 75 parts of polycarbonate, 6 parts of linear low-density polyethylene, a mixture a, 1.5 parts of antistatic agent, 1 part of plasticizer, 5 parts of reinforcing agent, 2 parts of wear-resisting agent, 0.5 part of antioxidant, 3 parts of internal lubricant, 4 parts of composite cement and a mixture d in sequence, mixing at high speed for 16 minutes to obtain a mixed material b, and placing the mixed material b into a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying 1 part of an outer layer of lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
Example three:
an antioxidant plastic formula comprises the following components in parts by weight: 85 parts of polycarbonate, 8 parts of linear low-density polyethylene, 5 parts of composite cement, 2 parts of an oxidant, 1.5 parts of an antistatic agent, 2 parts of a plasticizer, 2 parts of a light stabilizer, 3 parts of a colorant, 13 parts of a reinforcing agent, 7 parts of a flame retardant, 3 parts of an anti-wear agent, 1.5 parts of an antioxidant, 3 parts of carbon black and 5 parts of a lubricant.
The preparation method specifically comprises the following steps:
experiment five:
s1: sequentially adding 2 parts of light stabilizer, 3 parts of coloring agent and 1.5 parts of carbon black into a stirrer, and mixing and stirring for 15 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding 1 part of antioxidant, 2 parts of oxidant and 1.5 parts of carbon black to carry out high-speed mixing for 8 minutes to obtain a mixed material c;
s3: mixing the mixed material c with 7 parts of a combustion improver to obtain a mixed material d;
s4: adding 85 parts of polycarbonate, 8 parts of linear low-density polyethylene, a mixture a, 1.5 parts of antistatic agent, 2 parts of plasticizer, 13 parts of reinforcing agent, 3 parts of wear-resisting agent, 0.5 part of antioxidant, 3 parts of internal lubricant, 5 parts of composite cement and a mixture d in sequence, mixing at high speed for 6 minutes to obtain a mixed material b, and placing the mixed material b into a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying 2 parts of an external lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
Experiment six:
s1: sequentially adding 2 parts of light stabilizer, 3 parts of coloring agent and 1.5 parts of carbon black into a stirrer, and mixing and stirring for 25 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding 1 part of antioxidant, 2 parts of oxidant and 1.5 parts of carbon black to carry out high-speed mixing for 12 minutes to obtain a mixed material c;
s3: mixing the mixed material c with 7 parts of a combustion improver to obtain a mixed material d;
s4: adding 85 parts of polycarbonate, 8 parts of linear low-density polyethylene, a mixture a, 1.5 parts of antistatic agent, 2 parts of plasticizer, 13 parts of reinforcing agent, 3 parts of wear-resisting agent, 0.5 part of antioxidant, 3 parts of internal lubricant and 5 parts of composite cement in sequence, mixing at high speed for 16 minutes to obtain a mixed material b, and placing the mixed material b in a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying 2 parts of an external lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
According to the comparison of the experimental data of the above examples, the oxygen resistance of the plastic obtained by the formulation and process of experiment four is the best, as shown in fig. 2.
In one embodiment, the antioxidant plastic formula comprises any one or an equal ratio mixture of any two of 2-6-di-tert-butyl-4-methylphenol (BHT), phosphite and hindered phenol; the reinforcing agent is formed by mixing mica powder, carbon fibers and glass fibers according to the mass ratio of 3:5: 7; the light stabilizer is any one or three of hydroxybenzophenone, 2- (2 ' -hydroxy-3 ', 5 ' -di-tert-phenyl) -5-chlorinated benzotriazole and 2-hydroxy-4-n-octoxy benzophenone in equal ratio; the oxidant is potassium permanganate powder; the lubricant comprises an internal lubricant and an external lubricant; the internal lubricant is a composite lubricant consisting of stearic acid monoglyceride, butyl stearate and white oil; the external lubricant is natural paraffin mixed with the internal lubricant.
In the specific embodiment, the antioxidant plastic formula is prepared by taking carbon black as an essential raw material, and the materials of the antioxidant, the light stabilizer and the colorant include, but are not limited to, carbon black, and when the material of the antioxidant, the light stabilizer and the colorant is carbon black, the total parts of the carbon black are (antioxidant/light stabilizer/colorant) + carbon black; the light shielding property of the carbon black and the characteristics of the colorant are mixed with the light stabilizer colorant for use, so that a barrier can be obtained between the polymer and the light radiation, light irradiated on the plastic is shielded and reflected, the light can not penetrate into the plastic, the phenomenon that the oxidation of the plastic is accelerated because ultraviolet rays enter the inside of a macromolecule is avoided, the macromolecule is effectively protected, and the oxidative degradation of the plastic by the light is inhibited; the composite antioxidant is formed by mixing the antioxidant characteristic of the carbon black and 2, 6-di-tert-butyl-4-methylphenol, while a single antioxidant has great limit to the effect of a plastic product and can also have side effects, and the composite antioxidant formed by mixing the 2, 6-di-tert-butyl-4-methylphenol has a synergistic effect on the antioxidant capacity of the plastic, so that the cost of part of the antioxidant is reduced, the side effect of the single antioxidant is avoided, and the antioxidant property of the plastic is effectively enhanced; under the action of only carbon black, light stabilizer and antioxidant, the plastic can be oxidized inevitably after being used for a long time, the oxidized plastic can be reduced by reduction reaction in the oxidation process, the oxidized plastic can be reduced by adding the oxidant, if the oxidant is directly added, the oxidant can react when meeting light and can damage the plastic, the oxidant is potassium permanganate, the antioxidant is added on the potassium permanganate and mixed with the carbon black, a protective layer is formed on the surface of the potassium permanganate, the oxidant can not contact with external light under the condition of no external influence after being dissolved in a plastic product, and can well contact the plastic, the oxidant on the upper surface of the plastic can react with the oxidized part of the plastic under the irradiation of the light, and the oxidant can reduce the oxidized part of the plastic, meanwhile, the potassium permanganate also has a sterilization function, when the bacterial colony causes oxidative decomposition on the plastic, the added potassium permanganate can kill the bacterial colony, so that the time for oxidative decomposition of the plastic is prolonged, and the problem of color change caused by oxidation of the plastic is solved; the composite lubricant consisting of the stearic acid monoglyceride, the butyl stearate, the white oil and the natural paraffin added on the outer surface of the plastic also forms a protective layer, the mixed material c and the mixed material b in the inner layer play a role in protection, and meanwhile, the brightness is increased on the surface of the plastic, so that part of light rays can be reflected, and the oxidation resistance is increased; after the polycarbonate and the linear low-density polyethylene in a specific proportion are mixed, the internal lubricant is added to increase the fluidity, and then the composite cement is added, so that the synergistic effect is generated, the composite cement can increase the wear resistance, the compressive strength and the corrosion resistance of the plastic, and the linear low-density polyethylene has the function of changing the rigidity, the impact strength and the like of the plastic; the composite cement is prepared from composite portland cement and rapid-hardening portland cement in a mass ratio of 2: 1.5 ratio composition; mica powder, carbon fiber and glass fiber are mixed according to the mass ratio of 3:5:7 to form the reinforcing agent of the plastic, the mixed reinforcing agent and linear low-density polyethylene also generate synergistic reaction, the synergistic reaction generated by the reinforcing agent mixed according to the mass ratio of 3:5:7 is optimal, the carbon fiber and the glass fiber can enhance the heat conductivity of the plastic, the mica powder can enhance the heat resistance of the plastic, the heat generated by the friction of the plastic can be easily dissipated, the interior is not easy to overheat and store heat, the time for accelerating the oxidation of the plastic due to overhigh temperature is avoided, simultaneously the glass fiber, the carbon fiber and the linear low-density polyethylene enhance the adhesiveness, the tear resistance, the toughness and the rigidity of the plastic, once the plastic is oxidized, a macromolecular chain is broken, the mechanical property of a product is reduced, and the strength of the plastic is reduced, the plastic product generally has internal stress inside, and when the strength of the plastic is not enough to resist the internal stress, the cracking phenomenon appears, so that the synergistic effect of the reinforcing agent and the linear low-density polyethylene can effectively reduce the disconnection of the high molecular chain of the plastic, and the antioxidant and anti-aging capabilities of the plastic can be effectively improved by complementing the characteristics of the reinforcing agent and the linear low-density polyethylene.
In conclusion, the plastic provided by the invention has obvious progress through specific proportion and process.
Of course, the present invention may have other embodiments, and based on the embodiments, other embodiments obtained by persons skilled in the art without any creative work are within the protection scope of the present invention.
Claims (10)
1. The antioxidant plastic formula is characterized by comprising the following components in parts by weight: 70-85 parts of polycarbonate, 3-8 parts of linear low-density polyethylene, 1-5 parts of composite cement, 0.5-2 parts of oxidant, 1-1.5 parts of antistatic agent, 1-2 parts of plasticizer, 1-2 parts of light stabilizer, 2-3 parts of colorant, 8-13 parts of reinforcing agent, 4-7 parts of flame retardant, 1-3 parts of wear-resistant agent, 0.5-1.5 parts of antioxidant, 1-3 parts of carbon black and 3-5 parts of lubricant.
2. The antioxidant plastic formulation of claim 1, wherein the antioxidant comprises any one or an equal ratio blend of any two of 2-6-di-tert-butyl-4-methylphenol (BHT), a phosphite, and a hindered phenol.
3. The antioxidant plastic formula as claimed in claim 1, wherein the reinforcing agent is formed by mixing mica powder, carbon fiber and glass fiber in a mass ratio of 3:5: 7.
4. The antioxidant plastic formulation as claimed in claim 1, wherein the light stabilizer is any one or three of hydroxybenzophenone, 2- (2 ' -hydroxy-3 ', 5 ' -di-tert-phenyl) -5-chlorobenzotriazole and 2-hydroxy-4-n-octoxybenzophenone in equal ratio.
5. The antioxidant plastic formulation of claim 1, wherein the oxidizing agent is potassium permanganate powder.
6. The antioxidant plastic formulation of claim 1, wherein the lubricant comprises an internal lubricant and an external lubricant; the internal lubricant is a composite lubricant consisting of stearic acid monoglyceride, butyl stearate and white oil; the external lubricant is natural paraffin mixed with the internal lubricant.
7. The antioxidant plastic formulation of claim 1, comprising in parts by weight: 70 parts of polycarbonate, 3 parts of linear low-density polyethylene, 2 parts of composite cement, 0.5 part of oxidant, 1.5 parts of antistatic agent, 1 part of plasticizer, 1 part of light stabilizer, 2 parts of colorant, 8 parts of reinforcing agent, 4 parts of flame retardant, 1 part of wear-resisting agent, 1 part of antioxidant, 1 part of carbon black and 3 parts of lubricant.
8. The antioxidant plastic formulation of claim 1, comprising in parts by weight: 75 parts of polycarbonate, 6 parts of linear low-density polyethylene, 4 parts of composite cement, 1 part of oxidant, 1.5 parts of antistatic agent, 1 part of plasticizer, 1 part of light stabilizer, 2 parts of colorant, 5 parts of reinforcing agent, 5 parts of flame retardant, 2 parts of wear-resisting agent, 0.5 part of antioxidant, 2 parts of carbon black and 4 parts of lubricant.
9. The antioxidant plastic formulation of claim 1, comprising in parts by weight: 85 parts of polycarbonate, 8 parts of linear low-density polyethylene, 5 parts of composite cement, 2 parts of an oxidant, 1.5 parts of an antistatic agent, 2 parts of a plasticizer, 2 parts of a light stabilizer, 3 parts of a colorant, 13 parts of a reinforcing agent, 7 parts of a flame retardant, 3 parts of an anti-wear agent, 1.5 parts of an antioxidant, 3 parts of carbon black and 5 parts of a lubricant.
10. The antioxidant plastic formula as claimed in any one of claims 1 to 9, wherein the preparation method specifically comprises the following steps:
s1: sequentially adding a light stabilizer, a coloring agent and carbon black into a stirrer, and mixing and stirring for 5-30 minutes to obtain a uniformly stirred mixed material a;
s2: sequentially adding an antioxidant, an oxidant and carbon black to carry out high-speed mixing for 5-15 minutes to obtain a mixed material c;
s3: mixing the mixed material c with a combustion improver to obtain a mixed material d;
s4: sequentially adding polycarbonate, linear low-density polyethylene, the mixture a, an antistatic agent, a plasticizer, a reinforcing agent, an abrasion-resistant agent, an antioxidant, an internal lubricant, composite cement and the mixed material d, mixing at a high speed for 3-18 minutes to obtain a mixed material b, and placing the mixed material b into a cavity of an injection molding machine;
s5: after the temperature of the die reaches a set temperature, uniformly spraying a layer of external lubricant on the surface of the inner cavity of the die;
s6: injecting the mixed material b into a mold at a set pressure;
s7: and (3) cooling and shaping the plastic by a mold cooling system, separating the mold, and taking out the formed object.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765810A (en) * | 2004-10-21 | 2006-05-03 | 旭电化工业株式会社 | Curing polymer cement composition |
| CN112538250A (en) * | 2020-12-02 | 2021-03-23 | 赵光明 | Antioxidant plastic formula |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1765810A (en) * | 2004-10-21 | 2006-05-03 | 旭电化工业株式会社 | Curing polymer cement composition |
| CN112538250A (en) * | 2020-12-02 | 2021-03-23 | 赵光明 | Antioxidant plastic formula |
Non-Patent Citations (1)
| Title |
|---|
| 温变英, 中国轻工业出版社 * |
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Application publication date: 20220712 |