CN107602921A - A kind of modified calcium carbonate and its production technology applied to plastics - Google Patents
A kind of modified calcium carbonate and its production technology applied to plastics Download PDFInfo
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Abstract
The invention provides a kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：20 30 parts of calcium carbonate fragment, 5 10 parts of zinc stearate, 25 parts of chitosan, 0.1 0.3 parts of surfactant, 0.03 0.05 parts of solid acid, 0.08 0.2 parts of coupling agent, 0.05 0.09 parts of initiator, 0.08 0.12 parts of bleeding agent, 0.02 0.06 parts of stabilizer, 0.07 0.15 parts of dispersant.The modified calcium carbonate is made through over cleaning, broken, classification, access composite coverings, blending surface modification, grinding, drying and other steps, the modified calcium carbonate prepared, lipophile is stronger, adhesion is stronger, it is applied to the production process of plastic products, the plastic products prepared, have and preferably draw high intensity, elongation at break, heat distortion temperature and Rockwell hardness.
Description
Technical field
The invention belongs to plastics preparation field, is specifically related to a kind of modified calcium carbonate applied to plastics and its production
Technique.
Background technology
Inorganic particle is generally filled with the plastic, and what usage amount was maximum at present is talcum powder and calcium carbonate.Using inorganic powder
Body filling can substantially reduce production cost.Calcium carbonate category Inorganic nonmetal mineral, surface have many hydroxyls, easily adsorb water
Point, not surface treated calcium carbonate powder particle surface is hydrophilic and oleophobic, in highly polar, thus can not be contour with plastics, rubber
Molecular organic is chemically crosslinked, and is difficult in organic media dispersed, and interface is difficult to form good bonding.In addition,
Calcium carbonate superfine powder particle diameter is small, has great specific surface area and higher specific surface energy, in preparation and last handling process easily
Generation particle coagulation, reunite, form offspring, grain diameter is become big, losing ultrafine dust in application process is possessed
Function, so as to influence practical application effect, it is impossible to play a part of functional stuffing；On the contrary, because boundary defect is to a certain degree
On can reduce some physical properties of product.
The content of the invention
The present invention provides a kind of modified calcium carbonate applied to plastics, solves the calcium carbonate used in plastics preparation process
The problems such as powder is hydrophilic and oleophobic, easy reunion and particle diameter are larger, and calcium carbonate applications of the present invention are to plastic products
Production, tensile strength, elongation at break, bending strength, the Brinell hardness of plastic products can be improved, while described in also providing
Production technology applied to the modified calcium carbonate of plastics.
The present invention is achieved by the following technical programs：
A kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：Calcium carbonate fragment
20-30 parts, zinc stearate 5-10 parts, chitosan 2-5 parts, surfactant 0.1-0.3 parts, solid acid 0.03-0.05 parts, coupling
Agent 0.08-0.2 parts, initiator 0.05-0.09 parts, bleeding agent 0.08-0.12 parts, stabilizer 0.02-0.06 parts, dispersant
0.07-0.15 parts.
Preferably, described surfactant, in units of parts by weight, including following raw material：Fluorine carbon phosphoesterase 30 .03-
0.1 part, sulfobetaines 0.04-0.1 parts, octyl sodium sulfonate 0.03-0.1 parts.
Preferably, the solid acid, in units of parts by weight, including following raw material：Succinic acid 0.01-0.02 parts, winestone
Sour 0.02-0.03 parts.
Preferably, the coupling agent, in units of parts by weight, including following raw material：Methyl-propyl acyloxy silane 0.05-
0.1 part, isopropyl stearic acid oxygen base aluminum acid ester 0.03-0.1 parts.
Preferably, the initiator, in units of parts by weight, including following raw material：Organic poly sesquisiloxane 0.02-
0.04 part, azo-bis-isobutyl cyanide 0.03-0.05 parts.
Preferably, the bleeding agent, in units of parts by weight, including following raw material：Iso-octyl sodium sulfosuccinate 0.03-
0.05 part, neopelex 0.05-0.07 parts.
Preferably, the stabilizer, in units of parts by weight, including following raw material：Trisnonyl phenyl phosphite 0.01-
0.02 part, lead sulfate tribasic 0.01-0.02 parts, sodium tripolyphosphate 0.01-0.02 parts.
Preferably, the dispersant, in units of parts by weight, including following raw material：Ammonium citrate 0.03-0.06 parts, gather
Ammonium acrylate 0.04-0.09 parts.
The present invention also provides a kind of production technology of the described modified calcium carbonate applied to plastics, including following step simultaneously
Suddenly：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 500-700 mesh sieves, is obtained calcium carbonate powder；
S3：Zinc stearate, chitosan, solid acid, coupling agent are put into reactor and heated up, 1.5-2h is reacted, is down to
Room temperature, 100-200 mesh sieves are crushed, composite coverings are made；
S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, surfactant is added, in 50-60
At DEG C, 30-40min is stirred with 1500-2000r/min speed, continuously adds compound covering obtained by initiator and step S3
Thing, at 45-60 DEG C, 25-35min is stirred with 1200-1500r/min speed, obtains mixture A；
S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50-55 DEG C
Under, 25-30min is stirred with 800-1000r/min speed, dispersant is then added, at 45-50 DEG C, with 1200-
1500r/min speed stirring 35-45min, after being down to room temperature, the mixture of gained is crushed with micronizer, crosses 1000-
1200 mesh sieves, dried at being 40-45 DEG C in temperature to water content≤0.25%, the modified calcium carbonate is made.
Preferably, the temperature being warming up in the step S3 is 50-60 DEG C.
The beneficial effects of the present invention are：
1st, by the present invention in that under the conditions of solid acid is existing, stearic acid and chitosan are coupled using coupling agent
Come, being formed has preferable oil loving composite coverings, while after being activated using surface-active to calcium carbonate powder surface,
Lipophile strengthens, and surface tension reduces, and with the help of initiator, can be good at accessing the preferably compound covering of lipophile
Thing, composite coverings can be caused to be adhered to the surface of calcium carbonate powder well；Bleeding agent and stabilizer are added, carbon can be made
Adhesion enhancing between sour calcium surface and composite coverings, while increase the lipophile of compound blanket surface, finally add
Enter dispersant, the mixture enabled to is not reunited, be advantageous to the progress of ultramicro grinding.
2nd, the modified calcium carbonate that the present invention prepares, lipophile is stronger, and adhesion is stronger, and oil factor is relatively low, settling volume
It is small and be not easy to reunite, the production process of plastic products is applied to, the plastic products prepared, there is preferable tensile strength, fracture
In terms of elongation, bending strength, Brinell hardness, while heat distortion temperature is higher.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
Embodiment 1
A kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：Calcium carbonate fragment 20
Part, 5 parts of zinc stearate, 2 parts of chitosan, 0.13 part of surfactant, 0.03 part of solid acid, 0.08 part of coupling agent, initiator
0.05 part, 0.08 part of bleeding agent, 0.02 part of stabilizer, 0.07 part of dispersant.
Wherein, surfactant, in units of parts by weight, including following raw material：Fluorine carbon phosphoesterase 30 .03 parts, sulfobetaines
0.04 part of alkali, 0.03 part of octyl sodium sulfonate.
Wherein, solid acid, in units of parts by weight, including following raw material：0.01 part of succinic acid, 0.02 part of tartaric acid.
Wherein, coupling agent, in units of parts by weight, including following raw material：0.05 part of methyl-propyl acyloxy silane, isopropyl
0.03 part of base distearyl epoxide Aluminate.
Wherein, initiator, in units of parts by weight, including following raw material：0.02 part of organic poly sesquisiloxane, azo two
0.03 part of isobutyl cyanogen.
Wherein, bleeding agent, in units of parts by weight, including following raw material：0.03 part of iso-octyl sodium sulfosuccinate, 12
0.05 part of sodium alkyl benzene sulfonate.
Wherein, stabilizer, in units of parts by weight, including following raw material：It is 0.01 part of trisnonyl phenyl phosphite, tribasic
0.01 part of lead sulfate, 0.01 part of sodium tripolyphosphate.
Wherein, dispersant, in units of parts by weight, including following raw material：0.03 part of ammonium citrate, ammonium polyacrylate 0.04
Part.
The production technology of the described modified calcium carbonate applied to plastics, comprises the following steps：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 500 mesh sieves, is obtained calcium carbonate powder；
S3：It is 50-55 that zinc stearate, chitosan, solid acid, coupling agent are put into the temperature being warming up in reactor
DEG C, 1.5h is reacted, room temperature is down to, crushed 100 mesh sieves, composite coverings are made；
S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, surfactant is added, in 50-55
At DEG C, 30min is stirred with 1500/min speed, composite coverings obtained by initiator and step S3 are continuously added, in 45-50
At DEG C, 25min is stirred with 1200r/min speed, obtains mixture A；
S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50 DEG C,
25min is stirred with 800r/min speed, then adds dispersant, at 45 DEG C, is stirred with 1200r/min speed
35min, after being down to room temperature, the mixture of gained is crushed with micronizer, cross 1000 mesh sieves, in the case where temperature is 40-45 DEG C
Dry to water content≤0.25%, the modified calcium carbonate is made.
Embodiment 2
A kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：Calcium carbonate fragment 25
Part, 8 parts of zinc stearate, 4 parts of chitosan, 0.2 part of surfactant, 0.04 part of solid acid, 0.14 part of coupling agent, initiator 0.07
Part, 0.1 part of bleeding agent, 0.045 part of stabilizer, 0.1 part of dispersant.
Wherein, surfactant, in units of parts by weight, including following raw material：Fluorine carbon phosphoesterase 30 .05 parts, sulfobetaines
0.08 part of alkali, 0.07 part of octyl sodium sulfonate.
Wherein, solid acid, in units of parts by weight, including following raw material：0.015 part of succinic acid, 0.025 part of tartaric acid.
Wherein, coupling agent, in units of parts by weight, including following raw material：0.08 part of methyl-propyl acyloxy silane, isopropyl
0.06 part of base distearyl epoxide Aluminate.
Wherein, initiator, in units of parts by weight, including following raw material：0.03 part of organic poly sesquisiloxane, azo two
0.04 part of isobutyl cyanogen.
Wherein, bleeding agent, in units of parts by weight, including following raw material：0.045 part of iso-octyl sodium sulfosuccinate, ten
0.055 part of dialkyl benzene sulfonic acids sodium.
Wherein, stabilizer, in units of parts by weight, including following raw material：0.015 part of trisnonyl phenyl phosphite, three salt
0.015 part of base lead sulfate, 0.015 part of sodium tripolyphosphate.
Wherein, dispersant, in units of parts by weight, including following raw material：0.04 part of ammonium citrate, ammonium polyacrylate 0.06
Part.
The production technology of the described modified calcium carbonate applied to plastics, comprises the following steps：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 600 mesh sieves, is obtained calcium carbonate powder；
S3：It is 50-60 that zinc stearate, chitosan, solid acid, coupling agent are put into the temperature being warming up in reactor
DEG C, 1.5-2h is reacted, room temperature is down to, crushed 200 mesh sieves, composite coverings are made；
S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, surfactant is added, in 55-60
At DEG C, 35min is stirred with 1800r/min speed, composite coverings obtained by initiator and step S3 are continuously added, in 50-
At 55 DEG C, 30min is stirred with 1400r/min speed, obtains mixture A；
S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50-55 DEG C
Under, 28min is stirred with 800r/min speed, dispersant is then added, at 45-50 DEG C, is stirred with 1300r/min speed
40min is mixed, after being down to room temperature, the mixture of gained is crushed with micronizer, crosses 1100 mesh sieves, is 40-45 DEG C in temperature
The modified calcium carbonate is made to water content≤0.25% in lower drying.
Embodiment 3
A kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：Calcium carbonate fragment 30
Part, 10 parts of zinc stearate, 5 parts of chitosan, 0.3 part of surfactant, 0.05 part of solid acid, 0.2 part of coupling agent, initiator 0.09
Part, 0.12 part of bleeding agent, 0.06 part of stabilizer, 0.15 part of dispersant.
Wherein, surfactant, in units of parts by weight, including following raw material：Fluorine carbon phosphoesterase 30 .1 parts, sulfobetaines
0.1 part of alkali, 0.1 part of octyl sodium sulfonate.
Wherein, solid acid, in units of parts by weight, including following raw material：Succinic acid：0.02 part, 0.03 part of tartaric acid.
Wherein, coupling agent, in units of parts by weight, including following raw material：0.1 part of methyl-propyl acyloxy silane, isopropyl
0.1 part of base distearyl epoxide Aluminate.
Wherein, initiator, in units of parts by weight, including following raw material：0.04 part of organic poly sesquisiloxane, azo two
0.05 part of isobutyl cyanogen.
Wherein, bleeding agent, in units of parts by weight, including following raw material：0.05 part of iso-octyl sodium sulfosuccinate, 12
0.07 part of sodium alkyl benzene sulfonate.
Wherein, stabilizer, in units of parts by weight, including following raw material：It is 0.02 part of trisnonyl phenyl phosphite, tribasic
0.02 part of lead sulfate, 0.02 part of sodium tripolyphosphate.
Wherein, dispersant, in units of parts by weight, including following raw material：0.06 part of ammonium citrate, ammonium polyacrylate 0.09
Part.
The production technology of the described modified calcium carbonate applied to plastics, comprises the following steps：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 700 mesh sieves, is obtained calcium carbonate powder；
S3：It is 55-60 that zinc stearate, chitosan, solid acid, coupling agent are put into the temperature being warming up in reactor
DEG C, 2h is reacted, room temperature is down to, crushed 200 mesh sieves, composite coverings are made；
S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, surfactant is added, in 55-60
At DEG C, 40min is stirred with 2000r/min speed, composite coverings obtained by initiator and step S3 are continuously added, in 50-
At 55 DEG C, 30min is stirred with 1400r/min speed, obtains mixture A；
S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50-55 DEG C
Under, 30min is stirred with 900r/min speed, dispersant is then added, at 45-50 DEG C, is stirred with 1500r/min speed
45min is mixed, after being down to room temperature, the mixture of gained is crushed with micronizer, crosses 1200 mesh sieves, is 40-45 DEG C in temperature
The modified calcium carbonate is made to water content≤0.25% in lower drying.
Embodiment 4
A kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：Calcium carbonate fragment 20
Part, 10 parts of zinc stearate, 2 parts of chitosan, 0.3 part of surfactant, 0.03 part of solid acid, 0.2 part of coupling agent, initiator 0.05
Part, 0.12 part of bleeding agent, 0.06 part of stabilizer, 0.15 part of dispersant.
Wherein, surfactant, in units of parts by weight, including following raw material：Fluorine carbon phosphoesterase 30 .1 parts, sulfobetaines
0.1 part of alkali, 0.1 part of octyl sodium sulfonate.
Wherein, solid acid, in units of parts by weight, including following raw material：0.01 part of succinic acid, 0.02 part of tartaric acid.
Wherein, coupling agent, in units of parts by weight, including following raw material：00.1 part of methyl-propyl acyloxy silane, isopropyl
0.1 part of base distearyl epoxide Aluminate.
Wherein, initiator, in units of parts by weight, including following raw material：0.02 part of organic poly sesquisiloxane, azo two
0.03 part of isobutyl cyanogen.
Wherein, bleeding agent, in units of parts by weight, including following raw material：0.05 part of iso-octyl sodium sulfosuccinate, 12
0.07 part of sodium alkyl benzene sulfonate.
Wherein, stabilizer, in units of parts by weight, including following raw material：It is 0.02 part of trisnonyl phenyl phosphite, tribasic
0.02 part of lead sulfate, 0.02 part of sodium tripolyphosphate.
Wherein, dispersant, in units of parts by weight, including following raw material：0.06 part of ammonium citrate, ammonium polyacrylate 0.09
Part.
The production technology of the described modified calcium carbonate applied to plastics, comprises the following steps：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 500 mesh sieves, is obtained calcium carbonate powder；
S3：It is 55-60 that zinc stearate, chitosan, solid acid, coupling agent are put into the temperature being warming up in reactor
DEG C, 2h is reacted, room temperature is down to, crushed 200 mesh sieves, composite coverings are made；
S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, surfactant is added, in 50-55
At DEG C, 30min is stirred with 2000r/min speed, composite coverings obtained by initiator and step S3 are continuously added, in 55-
At 60 DEG C, 25min is stirred with 1200r/min speed, obtains mixture A；
S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50-55 DEG C
Under, 30min is stirred with 800r/min speed, dispersant is then added, at 45-50 DEG C, is stirred with 1500r/min speed
35min is mixed, after being down to room temperature, the mixture of gained is crushed with micronizer, crosses 1000 mesh sieves, is 40-45 DEG C in temperature
The modified calcium carbonate is made to water content≤0.25% in lower drying.
Embodiment 5
A kind of modified calcium carbonate applied to plastics, in units of parts by weight, including following raw material：Calcium carbonate fragment 29
Part, 6 parts of zinc stearate, 4 parts of chitosan, 0.13 part of surfactant, 0.045 part of solid acid, 0.09 part of coupling agent, initiator
0.085 part, 0.085 part of bleeding agent, 0.055 part of stabilizer, 0.08 part of dispersant.
Wherein, surfactant, in units of parts by weight, including following raw material：Fluorine carbon phosphoesterase 30 .05 parts, sulfobetaines
0.045 part of alkali, 0.035 part of octyl sodium sulfonate.
Wherein, solid acid, in units of parts by weight, including following raw material：0.018 part of succinic acid, 0.027 part of tartaric acid.
Wherein, coupling agent, in units of parts by weight, including following raw material：0.05 part of methyl-propyl acyloxy silane, isopropyl
0.04 part of base distearyl epoxide Aluminate.
Wherein, initiator, in units of parts by weight, including following raw material：0.04 part of organic poly sesquisiloxane, azo two
0.045 part of isobutyl cyanogen.
Wherein, bleeding agent, in units of parts by weight, including following raw material：0.035 part of iso-octyl sodium sulfosuccinate, ten
0.05 part of dialkyl benzene sulfonic acids sodium.
Wherein, stabilizer, in units of parts by weight, including following raw material：It is 0.02 part of trisnonyl phenyl phosphite, tribasic
0.02 part of lead sulfate, 0.015 part of sodium tripolyphosphate.
Wherein, dispersant, in units of parts by weight, including following raw material：0.035 part of ammonium citrate, ammonium polyacrylate
0.044 part.
The production technology of the described modified calcium carbonate applied to plastics, comprises the following steps：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 500-700 mesh sieves, is obtained calcium carbonate powder；
S3：It is 50-55 that zinc stearate, chitosan, solid acid, coupling agent are put into the temperature being warming up in reactor
DEG C, 1.6h is reacted, room temperature is down to, crushed 100 mesh sieves, composite coverings are made；
S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, surfactant is added, in 50-55
At DEG C, 31min is stirred with 1900r/min speed, composite coverings obtained by initiator and step S3 are continuously added, in 45-
At 50 DEG C, 34min is stirred with 1300r/min speed, obtains mixture A；
S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50-55 DEG C
Under, 29min is stirred with 950r/min speed, dispersant is then added, at 45-50 DEG C, is stirred with 1300r/min speed
36min is mixed, after being down to room temperature, the mixture of gained is crushed with micronizer, crosses 1100 mesh sieves, is 40-45 DEG C in temperature
The modified calcium carbonate is made to water content≤0.25% in lower drying.
Comparative example 1
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack solid acid, coupling agent in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in it is former
Expect component.
Comparative example 2
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack solid acid in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in raw material components.
Comparative example 3
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack coupling agent in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in raw material components.
Comparative example 4
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack surfactant, initiator in the raw material components of modified calcium carbonate in comparative example, be added without and lacked in production technology
Raw material components.
Comparative example 5
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack surfactant in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in raw material group
Point.
Comparative example 6
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack initiator in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in raw material components.
Comparative example 7
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack bleeding agent, stabilizer in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in it is former
Expect component.
Comparative example 8
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack stabilizer in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in raw material components.
Comparative example 9
The raw material components and production technology and embodiment 2 of this comparative example modified calcium carbonate are basically identical, and difference is this
Lack bleeding agent in the raw material components of modified calcium carbonate in comparative example, be added without in production technology lacking in raw material components.
Comparative example 10
A kind of ultrafine calcium carbonate applied to plastics, in units of parts by weight, it is made up of following raw material：Calcium carbonate fragment
25 parts.
The production technology of the described ultrafine calcium carbonate applied to plastics, comprises the following steps：
S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones dry removing
Surface moisture is removed, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；
S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained
Calcium carbonate microlith powder is classified with grader, is crossed 600 mesh sieves, is obtained calcium carbonate powder；
S3：After calcium carbonate powder obtained by step S2 is down into room temperature, crushed with micronizer, 1100 mesh sieves are crossed, in temperature
Spend to dry at 40-45 DEG C to water content≤0.25%, the ultrafine calcium carbonate is made.
Modified calcium carbonate performance is tested：
1st, modified calcium carbonate performance is tested
Performance test is carried out to the modified calcium carbonate obtained by embodiment and comparative example, correlated results is summarized as follows table 1
It is described
Table 1
(1) from embodiment 1-5, embodiment 2 and comparative example 10 experimental data, it can be seen that prepared by embodiment 1-5
Modified calcium carbonate, viscosity and oil factor are significantly less than only by the calcium carbonate obtained by mechanical ultramicro grinding, and settle body
Product is also significantly less than comparative example 10, illustrates the modified calcium carbonate small volume prepared by embodiment 1-5, good dispersion, does not send out
It is raw to reunite.
(2) from embodiment 2 and comparative example 1-3 experimental data, it can be seen that 2 or 3 individualism solids in comparative example
When acid or coupling agent, when solid acid and coupling agent is not present simultaneously with comparative example 1, the modified calcium carbonate prepared is in oil suction
All there is different degrees of raising in terms of value, viscosity, settling volume, illustrate in the preparation process of composite coverings, solid acid
Play synergy with coupling agent, when solid acid and coupling agent simultaneously in the presence of, solid acid plays catalytic action so that coupling agent
Energy is preferable and stearic acid and chitosan are coupled together faster, forms the stronger composite coverings of lipophile.
(3) from embodiment 2 and comparative example 4-6 experimental data, it can be seen that 5 or 6 individualism surfaces in comparative example
When activating agent or initiator, with the modified calcium carbonate in comparative example 4 while when surfactant, initiator is not present, prepared
All there is different degrees of raising in terms of oil factor, viscosity, settling volume, illustrate in surfactant activated calcium carbonate powder
During, surfactant and initiator play synergy, when initiator and surfactant simultaneously in the presence of, initiator rises
To catalytic action so that surfactant can preferably and faster by activated calcium carbonate surface, reduce surface tension, beneficial to compound
Covering covers and adhesion.
(4) from embodiment 2 and comparative example 7-9 experimental data, it can be seen that 8 or 9 individualism infiltrations in comparative example
When agent or stabilizer, with comparative example 7 while when bleeding agent and stabilizer is not present, the modified calcium carbonate prepared is in oil suction
All there is different degrees of raising in terms of value, viscosity, settling volume, this is probably that mixture A can be under the auxiliary of bleeding agent, surely
Determining agent can strengthen the adhesion between calcium carbonate powder surface and composite coverings in mixture A, while increase compound
The lipophile of blanket surface.
2nd, the modified calcium carbonate for obtaining above-described embodiment and comparative example, as filler, applied to the production of plastics, will make
The plastic product obtained is detected, the data in the table 2 below that must be come in and gone out after inspection：
Table 2
(1) from embodiment 1-5, embodiment 2 and comparative example 10 experimental data, it can be seen that prepared by embodiment 1-5
Modified calcium carbonate be applied in plastic products, the plastics produced have excellent tensile strength, elongation at break, bending strong
Degree, Brinell hardness, while heat distortion temperature is also higher.
(2) from embodiment 2 and comparative example 1-3 experimental data, it can be seen that an individualism solid in comparative example 2 or 3
When acid or coupling agent, the modified calcium carbonate prepared is applied in plastic products, and the plastics produced are stretched in tensile strength, fracture
All poor in terms of long rate, bending strength, Brinell hardness, heat distortion temperature is relatively low, and solid acid is not present simultaneously in comparative example 1
During with coupling agent, the modified calcium carbonate prepared is applied in plastic products, and the plastics produced are compared with comparative example 2 or 3,
All worse in terms of tensile strength, elongation at break, bending strength, Brinell hardness, heat distortion temperature is lower, so as to further
Prove that both can play collaboration facilitation, can not only change when solid acid and coupling agent be present simultaneously in modified calcium carbonate
Enter the performance of modified calcium carbonate, while when modified calcium carbonate application production plastic products, can also improve the performance of plastics.
(3) from embodiment 2 and comparative example 4-6 experimental data, it can be seen that an individualism surface in comparative example 5 or 6
When activating agent or initiator, the modified calcium carbonate prepared is applied in plastic products, and the plastics produced are in tensile strength, disconnected
Elongation, bending strength, all poor in terms of Brinell hardness are split, heat distortion temperature is relatively low, and 4 table is not present simultaneously in comparative example
When face activating agent and initiator, the modified calcium carbonate prepared is applied in plastic products, the plastics produced with comparative example 5 or
6 compare, and all worse in terms of tensile strength, elongation at break, bending strength, Brinell hardness, heat distortion temperature is lower, so as to
Further to prove when surfactant and initiator be present simultaneously in modified calcium carbonate, both can play collaboration and promote to make
With the performance of modified calcium carbonate can not only be improved, while when modified calcium carbonate application production plastic products, can also improve modeling
The performance of material.
(4) from embodiment 2 and comparative example 7-9 experimental data, it can be seen that 8 or 9 individualism infiltrations in comparative example
When agent or stabilizer, the modified calcium carbonate prepared is applied in plastic products, and the plastics produced are stretched in tensile strength, fracture
All poor in terms of long rate, bending strength, Brinell hardness, heat distortion temperature is relatively low, with bleeding agent is not present simultaneously in comparative example 7
During with stabilizer, the modified calcium carbonate prepared is applied in plastic products, and the plastics produced are compared with comparative example 8 or 9,
All worse in terms of tensile strength, elongation at break, bending strength, Brinell hardness, heat distortion temperature is lower, so as to further
Prove that both can play collaboration facilitation, can not only change when bleeding agent and stabilizer be present simultaneously in modified calcium carbonate
Enter the performance of modified calcium carbonate, while when modified calcium carbonate application production plastic products, can also improve the performance of plastics.
Claims (10)
- A kind of 1. modified calcium carbonate applied to plastics, it is characterised in that：In units of parts by weight, including following raw material：Carbonic acid Calcium fragment 20-30 parts, zinc stearate 5-10 parts, chitosan 2-5 parts, surfactant 0.1-0.3 parts, solid acid 0.03- 0.05 part, coupling agent 0.08-0.2 parts, initiator 0.05-0.09 parts, bleeding agent 0.08-0.12 parts, stabilizer 0.02-0.06 Part, dispersant 0.07-0.15 parts.
- 2. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The surfactant, with Parts by weight are unit, including following raw material：Fluorine carbon phosphoesterase 30 .03-0.1 parts, sulfobetaines 0.04-0.1 parts, octyl sulphur Sour sodium 0.03-0.1 parts.
- 3. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The solid acid, with weight Part it is unit, including following raw material：Succinic acid 0.01-0.02 parts, tartaric acid 0.02-0.03 parts.
- 4. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The coupling agent, with weight Part it is unit, including following raw material：Methyl-propyl acyloxy silane 0.05-0.1 parts, isopropyl stearic acid oxygen base aluminum acid ester 0.03-0.1 parts.
- 5. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The initiator, with weight Part it is unit, including following raw material：Organic poly sesquisiloxane 0.02-0.04 parts, azo-bis-isobutyl cyanide 0.03-0.05 parts.
- 6. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The bleeding agent, with weight Part it is unit, including following raw material：Iso-octyl sodium sulfosuccinate 0.03-0.05 parts, neopelex 0.05-0.07 Part.
- 7. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The stabilizer, with weight Part it is unit, including following raw material：Trisnonyl phenyl phosphite 0.01-0.02 parts, lead sulfate tribasic 0.01-0.02 parts, three Polyphosphate sodium 0.01-0.02 parts.
- 8. the modified calcium carbonate according to claim 1 applied to plastics, it is characterised in that：The dispersant, with weight Part it is unit, including following raw material：Ammonium citrate 0.03-0.06 parts, ammonium polyacrylate 0.04-0.09 parts.
- 9. a kind of production technology of modified calcium carbonate applied to plastics according to claim any one of 1-8, its feature It is：Comprise the following steps：S1：Impurity thing is removed after choosing the cleaning such as the marble shipped from yard of material, lime stone, building stones are carried out to dry removing table Face moisture, then building stones are crushed with disintegrating machine, calcium carbonate fragment is made；S2：Calcium carbonate fragment made from step S1 is transported to vertical mill grinding, calcium carbonate microlith powder is made, by gained carbonic acid Calcium microlith powder is classified with grader, is crossed 500-700 mesh sieves, is obtained calcium carbonate powder；S3：Zinc stearate, chitosan, solid acid, coupling agent are put into reactor and heated up, 1.5-2h is reacted, is down to room temperature, 100-200 mesh sieves are crushed, composite coverings are made；S4：Calcium carbonate powder made from step S2 is added in high-speed mixer, adds surfactant, at 50-60 DEG C, 30-40min is stirred with 1500-2000r/min speed, continuously adds composite coverings obtained by initiator and step S3, At 45-60 DEG C, 25-35min is stirred with 1200-1500r/min speed, obtains mixture A；S5：Mixture A obtained by step S4 and bleeding agent, stabilizer are added in high-speed mixer, at 50-55 DEG C, 25-30min is stirred with 800-1000r/min speed, dispersant is then added, at 45-50 DEG C, with 1200-1500r/ Min speed stirring 35-45min, after being down to room temperature, the mixture of gained is crushed with micronizer, crosses 1000-1200 mesh Sieve, dried at being 40-45 DEG C in temperature to water content≤0.25%, the modified calcium carbonate is made.
- 10. the production technology of the modified calcium carbonate according to claim 9 applied to plastics, it is characterised in that：The step The temperature being warming up in rapid S3 is 50-60 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108892995A (en) * | 2018-05-24 | 2018-11-27 | 贺州钟山县双文碳酸钙新材料有限公司 | A kind of method of modifying of car paint color inhibition calcium carbonate |
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| CN103253692A (en) * | 2013-05-03 | 2013-08-21 | 广西大学 | Organic matter modified calcium carbonate and production method thereof |
| CN106366695A (en) * | 2016-08-22 | 2017-02-01 | 江西广源化工有限责任公司 | Modified ultrafine heavy calcium carbonate and preparation method thereof |
| CN106674600A (en) * | 2016-08-16 | 2017-05-17 | 四川云科微纳科技有限公司 | Preparation method of chitosan-coated heavy calcium carbonate anti-microbial filler for breathable film |
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| CN103253692A (en) * | 2013-05-03 | 2013-08-21 | 广西大学 | Organic matter modified calcium carbonate and production method thereof |
| CN106674600A (en) * | 2016-08-16 | 2017-05-17 | 四川云科微纳科技有限公司 | Preparation method of chitosan-coated heavy calcium carbonate anti-microbial filler for breathable film |
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