CN102827433A - Novel PVC (poly vinyl chloride)/CaCO3 composite material - Google Patents
Novel PVC (poly vinyl chloride)/CaCO3 composite material Download PDFInfo
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- CN102827433A CN102827433A CN2012102371204A CN201210237120A CN102827433A CN 102827433 A CN102827433 A CN 102827433A CN 2012102371204 A CN2012102371204 A CN 2012102371204A CN 201210237120 A CN201210237120 A CN 201210237120A CN 102827433 A CN102827433 A CN 102827433A
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- pvc
- caco
- phr
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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Abstract
The invention provides a novel PVC (poly vinyl chloride)/CaCO3 composite material. According to the novel PVC/CaCO3 composite material, a twin-screw extruder is adopted for extruding and pelleting, an injection molding machine is used for injection molding, nano-calcium is used for filling, therefore, the stretching strength of the PVC can be increased by 19%, and the non-notch impact strength of the PVC can be increased over three times up to 40.05kJ/m2, and the notch impact strength of the PVC is increased by about 3 three times to reach 28.94kJ/m2; the composite material has the best compressive mechanical property, and the stretching strength, the impact strength and the bending strength of the composite material are relatively improved.
Description
Technical field
The invention provides a kind of novel PVC/CaCO
3Matrix material, the present invention adopts twin screw extruder extruding pelletization, injection moulding machine injection moulding, selects for use Namigai to fill, and makes the tensile strength of PVC increase by 19%, and the unnotched impact strength of PVC increases more than 3 times,, reach 40.05 kJ/m
2, the PVC notched Izod impact strength increases about 3 times, reaches 28.94 kJ/m
2, the comprehensive mechanical property of matrix material is best, and its tensile strength, shock strength and flexural strength all are greatly improved.
Background technology
SE is one of five big resins for universal use, and its output is only second to Vilaterm.Along with the large-scale popularization and the use of chemical building material, the usage ratio of PVC boardy product improves constantly, and especially demand growth such as tubing, sheet material and section bar are rapid, and therefore the use properties to SE has had higher requirement.PVC RESINS is more crisp, and traditional toughening modifying technology normally adds people's rubber elastomer in resin, but is to be cost to reduce material valuable rigidity, thermotolerance, dimensional stability.
The SE shock strength is low, and hard PVC material fragility is big, poor, the poor heat stability of resistance to heat distorsion, is very necessary to its toughening modifying therefore.The traditional method of modified PVC is a filled elastomer, and the toughness of material is greatly improved, but performances such as rigidity, processing fluidity and thermotolerance reduce.Adopt the method for inelastic body filled plastics in recent years; Not only improve the toughness of PVC, also can improve its Young's modulus, intensity, processing fluidity, heat-drawn wire etc. simultaneously, embodied toughness reinforcing enhanced double effect. first-selected lime carbonate in the inelastic body of filled plastics; Because it is cheap; Not only can reduce cost with its potting resin, save resin, performances such as goods Young's modulus, hardness, heat-drawn wire and dimensional stability are improved.CaCO
3Can strengthen toughening PVC, along with scientific-technical progress, require material that better properties is arranged, single-material is unable to satisfy requirements at the higher level, yet the type material that integrates the various performances of differing materials but can make the matrix material of excellent combination property.CaCO
3The research starting of filling-modified PVC is morning, at first by common CaCO
3With micron order CaCO
3Progressively be developed to the nano level CaCO of today
3Nanometer grade calcium carbonate is because have small-size effect and special surface effects; Toughening modifying PVC has reached obvious effects. and carrying out nano-modified to the mineral powder surface is by the research and development of material system of Tsing-Hua University; Realize that on micron coarse whiting surface inorganic chemistry coats; Powder is not only had the character and the structure of micron particle after coating; The excellent properties that also has nanoparticle, thus the good toughness reinforcing performance of dispersing property that micron particles is good and nanometer particle puts together, and has produced toughness reinforcing enhanced double effects.
Summary of the invention
The invention provides a kind of novel PVC/CaCO
3Matrix material, the present invention adopts twin screw extruder extruding pelletization, injection moulding machine injection moulding, selects for use Namigai to fill, and makes the tensile strength of PVC increase by 19%, and the unnotched impact strength of PVC increases more than 3 times, reaches 40.05 kJ/m
2, the PVC notched Izod impact strength increases about 3 times, reaches 28.94 kJ/m
2, the comprehensive mechanical property of matrix material is best, and its tensile strength, shock strength and flexural strength all are greatly improved.
1. novel PVC/CaCO
3Matrix material, the present invention adopts twin screw extruder extruding pelletization, injection moulding machine injection moulding, selects for use Namigai to fill, and makes the tensile strength of PVC increase by 19%, and the unnotched impact strength of PVC increases more than 3 times, reaches 40.05 kJ/m
2, the PVC notched Izod impact strength increases about 3 times, reaches 28.94 kJ/m
2, the comprehensive mechanical property of matrix material is best, and its tensile strength, shock strength and flexural strength all are greatly improved.
2. the nanometer CaCO of the described employing of step 1
3Ester modified through aluminic acid, the PVC polymerization degree is 1000.
3. the resin matrix of the described employing of step 1 and auxiliary agent are SE (PVC) 100 Phr, compound plumbous 8 Phr, calcium stearate 1 Phr, solid paraffin 2 Phr, Triple Pressed Stearic Acid 2 Phr, CPE 4 Phr ACR 1.50 Phr.
4. step 1 is described stirs machine with height and is warming up to 75 ℃; Add height to the resin matrix that adopts and auxiliary agent together then and stir machine; High-speed stirring 15min removes the moisture of material, the lime carbonate after the modification is poured into after drying the water in the machine again, continues to stir the 1min discharging.
5. the described eight sections temperature with parallel dual-screw extruding machine of step 1 are set to 159,164,169 respectively; 176; 175,174,169 and 164 ℃; Melt blending, extruding pelletization then; Then place a particle that makes 70 ℃ baking oven to dry 8h, at last dried particle is being cut on the model machine and processed with cutting a kind cutter being injection molded into GB batten tension specimen under 200～203 ℃ with injection moulding machine, tensile property is measured on 4302 type Instron electronic universal material testing machines by GB/T 1040-92 standard.
Beneficial effect of the present invention is: the invention provides a kind of novel PVC/CaCO
3Matrix material, the present invention adopts twin screw extruder extruding pelletization, injection moulding machine injection moulding, selects for use Namigai to fill, and makes the tensile strength of PVC increase by 19%, and the unnotched impact strength of PVC increases more than 3 times, reaches 40.05 kJ/m
2, the PVC notched Izod impact strength increases about 3 times, reaches 28.94 kJ/m
2, the comprehensive mechanical property of matrix material is best, and its tensile strength, shock strength and flexural strength all are greatly improved.
Description of drawings
Fig. 1 Namigai consumption is to PVC/ CaCO
3The influence of matrix material tensile strength.
Fig. 2 Namigai is to PVC/ CaCO
3The influence of matrix material tensile strength.
Fig. 3 Namigai is to PVC/ CaCO
3The influence of matrix material shock strength.
Fig. 4 Namigai is to PVC/ CaCO
3The influence of matrix material flexural strength.
Embodiment
Following embodiment elaborates to the present invention, but to not restriction of the present invention.
Embodiment 1
The consumption of present embodiment explanation Namigai is to PVC/CaCO
3The influence of matrix material tensile strength, and the consumption of Namigai is to PVC/ CaCO
3The influence of matrix material tensile strength.Fig. 1 is that the consumption of Namigai is to PVC/ CaCO
3The change curve of the influence of matrix material tensile strength, as can be seen from the figure, the consumption of Namigai is to PVC/ CaCO
3The matrix material tensile strength has very big influence, and along with the increase of the consumption of Namigai, tensile strength increases, and when 50 Phr, reaches peak greatly, adds its mechanical property of Namigai again and does not then rise counter falling.This shows, adds proper amount of nano calcium, has improved the mechanical property of the integral body of matrix material.Can find out the original PVC of contrast, PVC/ CaCO by Fig. 2
3The tensile strength of matrix material has had greatly raising.
Embodiment 2
The use of present embodiment explanation Namigai is to PVC/ CaCO
3The influence of matrix material shock strength.Fig. 3 is that the use of Namigai is to PVC/ CaCO
3The influence of matrix material shock strength is in the drawings to PVC/ CaCO
3Matrix material and original PVC compare, and as can be seen from the figure, the use of Namigai is to PVC/ CaCO
3The matrix material shock strength has very big influence, and more original PVC compares, and notched Izod impact strength and unnotched impact strength all are greatly improved.
Embodiment 3
The use of present embodiment explanation Namigai is to PVC/ CaCO
3The influence of matrix material flexural strength.Fig. 4 is that the use of Namigai is to PVC/ CaCO
3The influence of matrix material flexural strength is in the drawings to PVC/ CaCO
3Matrix material and original PVC compare, and as can be seen from the figure, the use of Namigai is to PVC/ CaCO
3The matrix material flexural strength has very big influence, and more original PVC compares, PVC/ CaCO
3The matrix material flexural strength is greatly improved.
Claims (5)
1. PVC/CaCO
3Matrix material is characterized in that material adopts twin screw extruder extruding pelletization, injection moulding machine injection moulding, selects for use Namigai to fill.
2. PVC/CaCO according to claim 1
3Matrix material is characterized in that described nanometer CaCO
3Ester modified through aluminic acid, the PVC polymerization degree is 1000.
3. PVC/CaCO according to claim 1
3Matrix material is characterized in that described resin matrix and auxiliary agent are SE 100 Phr, compound plumbous 8 Phr, calcium stearate 1 Phr, solid paraffin 2 Phr, Triple Pressed Stearic Acid 2 Phr, CPE 4 Phr ACR 1.50 Phr.
4. PVC/CaCO according to claim 1
3Matrix material; It is characterized in that the preparation of material: height is stirred machine be warming up to 75 ℃, add height to the resin matrix that adopts and auxiliary agent together then and stir machine, high-speed stirring 15min removes the moisture of material; Again the lime carbonate after the modification is poured into after drying the water in the machine, continued to stir the 1min discharging.
5. PVC/CaCO according to claim 1
3Matrix material is characterized in that eight sections temperature of parallel dual-screw extruding machine are set to 159,164 respectively; 169,176,175; 174; 169 and 164 ℃, melt blending, extruding pelletization then place the particle that makes 70 ℃ baking oven to dry 8h then; At last dried particle is being cut on the model machine and processed with cutting a kind cutter being injection molded into GB batten tension specimen under 200～203 ℃ with injection moulding machine, tensile property is measured on 4302 type Instron electronic universal material testing machines by GB/T 1040-92 standard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102371204A CN102827433A (en) | 2012-07-10 | 2012-07-10 | Novel PVC (poly vinyl chloride)/CaCO3 composite material |
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| CN2012102371204A CN102827433A (en) | 2012-07-10 | 2012-07-10 | Novel PVC (poly vinyl chloride)/CaCO3 composite material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694271A (en) * | 2015-09-18 | 2016-06-22 | 怀宁县明发塑业有限责任公司 | Nano-modification polyvinyl chloride (PVC) composite plastic for automobile parts |
| CN109093920A (en) * | 2018-07-11 | 2018-12-28 | 吉安顶丰鞋业有限公司 | Polyvinyl chloride resin merges process with after PVC paste shape resin and its dispensing solidification |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914252A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Low-cost environment-friendly injection-molding high heat-resistant high impact-resistant rigid polyvinyl chloride composite and preparation method thereof |
| CN102532744A (en) * | 2010-12-21 | 2012-07-04 | 天津德昊超微新材料有限公司 | Polyvinyl chloride (PVC)/6000-mesh ground limestone antistatic cable hook special material and preparing technology thereof |
-
2012
- 2012-07-10 CN CN2012102371204A patent/CN102827433A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914252A (en) * | 2010-08-20 | 2010-12-15 | 浙江大学 | Low-cost environment-friendly injection-molding high heat-resistant high impact-resistant rigid polyvinyl chloride composite and preparation method thereof |
| CN102532744A (en) * | 2010-12-21 | 2012-07-04 | 天津德昊超微新材料有限公司 | Polyvinyl chloride (PVC)/6000-mesh ground limestone antistatic cable hook special material and preparing technology thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694271A (en) * | 2015-09-18 | 2016-06-22 | 怀宁县明发塑业有限责任公司 | Nano-modification polyvinyl chloride (PVC) composite plastic for automobile parts |
| CN109093920A (en) * | 2018-07-11 | 2018-12-28 | 吉安顶丰鞋业有限公司 | Polyvinyl chloride resin merges process with after PVC paste shape resin and its dispensing solidification |
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Application publication date: 20121219 |