CN102863729B - Production method of high impact polyvinyl chloride (PVC) composite resin HI7 well cover - Google Patents
Production method of high impact polyvinyl chloride (PVC) composite resin HI7 well cover Download PDFInfo
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- CN102863729B CN102863729B CN201210412234.8A CN201210412234A CN102863729B CN 102863729 B CN102863729 B CN 102863729B CN 201210412234 A CN201210412234 A CN 201210412234A CN 102863729 B CN102863729 B CN 102863729B
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Abstract
The invention relates to the field of the production technology of a plastic well cover, in particular to a production method of a high impact polyvinyl chloride (PVC) composite resin HI7 well cover. Currently, the general PVC is high in strength and low in price but is weak in toughness at low temperatures and in melt flowability, and cannot be used as the raw material for the plastic well cover product. According to the production method, the PVC composite resin well cover comprises the following components by weight: 100 parts of high impact PVC composite resin HI7, 1.5-4.8 parts of a heat stabilizer, 0.5-1 part of an internal lubricant, 0.5-1 part of an external lubricant, 0.02-0.4 part of an antioxidant, 0.1-0.6 part of an ultraviolent ray absorbent, 5-100 parts of a filler, and 0.02-0.04 part of a colorant. The production method comprises the steps of mixing, granulating, and performing the injection molding for once to obtain the plastic well cover. The well cover provided by the intention has the advantages of good weathering resistance, large load capacity and high strength and can be fixed and used at low temperatures in the north.
Description
Technical field
The present invention relates to plastics well lid raw materials for production formula, be specifically related to a kind of high-impact PVC compound resin HI7 and produce plastics well lid composition of raw materials and compounding method thereof.
Background technology
In recent years, Process of Urbanization Construction, urban renewal develop rapidly, country continues to increase the dynamics to infrastructure investment simultaneously, electric wire, cable, optical cable change outdoor for underground, the demand of tackling mutually well lid also increases, and the local well lid of the public utilities such as urban road, square and residential quarters surrounding is also used in a large number.The performance requriements of well lid has: intensity is high, shock-resistant, wear-resistant, has certain weight, long service life.Dividing well lid by material has wooden, gelling material-cement, metallic substance-cast iron, macromolecular material (plastics) and various compound well lid, and the well lid of unlike material respectively has relative merits, although casting iron well lid intensity is high, it is lasting to use, but more crisp, easily pulverize, even fracture, manufacture energy consumption is high, manufacturing process steps is many, and moulding fabrication cycle is longer, and use time jitter noise large, easily stolen, after theft, very easily produce traffic and Personal Insurance accident; Reinforced concrete well lid will reach intensity must be along doing very thickly, is difficult to open, and often makes well lid be stuck, and its fragility is large, easy fracture; Steel fibre concrete manhole price is low, and theftproof performance is good, but life expectancy is short, and anti-pressure ability is poor, is unsuitable for frequent unlatching; Glass fibre reinforced plastic manhole covers, theftproof performance is good, more attractive in appearance, but ultraviolet radiation resisting ability is poor, is easy to decompose, and coefficient of thermal expansion and contraction is asynchronous with road, and the durability is short, and anti-pressure ability is poor, and material fragility is large especially, very easily fracture; Silicon moulds that combined manhole cover intensity is low, easily aging, and winter is crisp, and supporting capacity is inadequate, and summer is soft, and under hot conditions, creep is difficult to open, and the life-span is short; Thermoplasticity PE Resin man-hole cover intensity is low, supporting capacity is inadequate, is merely able to meet the lowest class requirement of well lid standard, easily aging and creep; Thermosetting resin combined manhole cover load, anti-theft, rotproofness etc. are all better, but the prices of raw and semifnished materials are higher, and manufacturing cost is high; Several well lids are not very desirable on use or cost above.Although general PVC intensity is higher, price is also lower, toughness of material deficiency, and low-temperature flexibility is poor, and fluidity of molten is poor simultaneously, uses so can not serve as the raw material of plastics well lid product.
Summary of the invention
Content of the present invention is to provide that a kind of anti-pressure ability is strong, good weatherability, load capacity are large, shock resistance, low-temperature performance be good, can under northern cold condition, install and use, and PVC plastics well lid composition of raw materials and compounding method thereof with low cost, the problem existing to solve existing well lid product.
High-impact PVC compound resin HI7 of the present invention produces plastics well lid composition of raw materials, is mainly formed by each composition mixture of following weight parts:
High-impact PVC compound resin HI7 100
Thermo-stabilizer 1.5-4.8
Internal lubricant 0.5-1.0
External lubricant 0.5-1.0
Oxidation inhibitor 0.02-0.4
UV light absorber 0.1-0.6
Weighting agent 5-100
Tinting material 0.02-0.04
Further, described thermo-stabilizer is one or more in organotin stabilizer, lead salt stabilizer, calcium-zinc composite stabilizing agent, barium zinc composite stabilizer, potassium zinc composite stabilizer.
Further, described internal lubricant is one or more in oxidized polyethlene wax, polyethylene wax, stearin.
Further, described external lubricant is one or more in calcium stearate, stearic acid, paraffin.
Further, described oxidation inhibitor is one or more in Hinered phenols antioxidant, phosphite oxidation inhibitor, thio-based oxidation inhibitor.
Further, described UV light absorber is one or more in salicylate class, benzophenone class, benzotriazole category, triazines, hindered amines, group-substituted acrylonitrile.
Further, described weighting agent is one or more in Calcium carbonate weighting agent, black pigment bulking agent, silicates weighting agent, silica-based weighting agent, metal oxide weighting agent.
Further, described tinting material is toner, look mother or other pigment.
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, thermo-stabilizer are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 60-70 DEG C, add internal lubricant, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated under 80-85 DEG C of condition, temperature of charge is sequentially added into external lubricant, oxidation inhibitor, UV light absorber, weighting agent, tinting material;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
The high-impact PVC compound resin HI7 that the present invention adopts is the polychloroethylene compound resin that the polyacrylic ester in-situ polymerization of Hebei Shenghua Chemical Co., Ltd's production has inierpeneirating network structure; Taking polyacrylic ester latex as matrix, grafting vinyl chloride monomer, forms taking polyacrylic ester as main chain, PVC is the multipolymer of side chain; Mean polymerisation degree 800.
The invention has the beneficial effects as follows that product has very high notched Izod impact strength, can reach 70kJ/m
2left and right, compound resin fusion time is short simultaneously, processing flowability good, and low-temperature flexibility and weathering resistance are superior.
Embodiment
embodiment 1
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Organo-tin het stabilizer 1.5Kg
Oxidized polyethlene wax 0.5Kg
Calcium stearate 0.5Kg
Antioxidant 1010 0.02Kg
UV light absorber UV-0 0.6Kg
Light calcium carbonate 5Kg
Blue powder 0.02Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, organo-tin het stabilizer are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 60-70 DEG C, add oxidized polyethlene wax, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated to, temperature of charge under 80-85 DEG C of condition, is sequentially added into calcium stearate, antioxidant 1010, UV light absorber UV-0, light calcium carbonate, blue powder;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
embodiment 2
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Calcium-zinc composite stabilizing agent 3.8Kg
Polyethylene wax 0.6Kg
Paraffin 1.0Kg
Anti-oxidant DLTP 0.4Kg
Ultraviolet absorbent UV-531 0.1Kg
Nano-calcium carbonate 100Kg
Carbon black 0.04Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, calcium-zinc composite stabilizing agent are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 60-70 DEG C, add polyethylene wax, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated under 80-85 DEG C of condition, temperature of charge is sequentially added into paraffin, anti-oxidant DLTP, ultraviolet absorbent UV-531, nano-calcium carbonate, carbon black;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
embodiment 3
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Barium zinc composite stabilizer 2.8Kg
Stearin 1.0Kg
Stearic acid 0.8Kg
Irgasfos 168 0.1Kg
UV light absorber UV-234 0.4Kg
Titanium dioxide 10Kg
Carbon black 0.04Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, barium zinc composite stabilizer are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 60-70 DEG C, add stearin, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated under 80-85 DEG C of condition, temperature of charge is sequentially added into stearic acid, irgasfos 168, UV light absorber UV-234, titanium dioxide, carbon black;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
embodiment 4
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Lead salt thermal stabilizer 4.8Kg
Polyethylene wax 0.4Kg
Oxidized polyethlene wax 0.3Kg
Stearic acid 0.2Kg
Paraffin 0.6Kg
Oxidation inhibitor DMTP 0.2Kg
UV light absorber LS-744 0.5Kg
Carbon fiber 5Kg
Carbon black 0.04Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, Lead salt thermal stabilizer are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 65 DEG C, add polyethylene wax and oxidized polyethlene wax, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated to, temperature of charge under 80-85 DEG C of condition, is sequentially added into stearic acid, paraffin, oxidation inhibitor DMTP, UV light absorber LS-744, carbon fiber, carbon black;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
embodiment 5
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Potassium zinc composite stabilizer 2.8Kg
Polyethylene wax 0.6Kg
Stearic acid 1.0Kg
Antioxidant 330 0.15Kg
UV light absorber Tinuvin 292 0.3Kg
Talcum powder 30Kg
Carbon black 0.04Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, potassium zinc composite stabilizer are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 65 DEG C, add polyethylene wax, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated to, temperature of charge under 80-85 DEG C of condition, is sequentially added into stearic acid, antioxidant 330, UV light absorber Tinuvin 292, talcum powder, carbon black;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
embodiment 6
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Calcium-zinc composite stabilizing agent 3.8Kg
Polyethylene wax 0.6Kg
Stearic acid 1.0Kg
Antioxidant 1076 0.08Kg
UV light absorber LS-7700 0.2Kg
Aluminum oxide powder 5Kg
Carbon black 0.04Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, calcium-zinc composite stabilizing agent are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 65 DEG C, add polyethylene wax, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated under 80-85 DEG C of condition, temperature of charge is sequentially added into stearic acid, antioxidant 1076, UV light absorber LS-7700, aluminum oxide powder, carbon black;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
embodiment 7
The consumption of each composition is as follows:
High-impact PVC compound resin HI7 100Kg
Calcium-zinc composite stabilizing agent 3.8Kg
Polyethylene wax 0.6Kg
Stearic acid 1.0Kg
Oxidation inhibitor PDOP 0.2Kg
UV light absorber UV-9 0.45Kg
Dust cork 5Kg
Carbon black 0.04Kg
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, calcium-zinc composite stabilizing agent are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 65 DEG C, add polyethylene wax, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated to, temperature of charge under 80-85 DEG C of condition, is sequentially added into stearic acid, oxidation inhibitor PDOP, UV light absorber UV-9, dust cork, carbon black;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
Performance test:
The well lid product making from embodiment 1 ~ 7 respectively according to GB/T 9352 samples, and according to GB/T9341, GB/T1043 measures flexural strength, modulus in flexure, the notched Izod impact strength of product, and test result is as shown in table 1 below.
Table 1, embodiment 1 ~ 7 the performance test results
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Everyly belong to apparent variation or the still row in protection scope of the present invention of variation that technical scheme of the present invention extends out.
Claims (8)
1. a production method for high-impact PVC compound resin HI7 well lid, is characterized in that the parts by weight of each component are as follows:
High-impact PVC compound resin HI7 100
Thermo-stabilizer 1.5-4.8
Internal lubricant 0.5-1.0
External lubricant 0.5-1.0
Oxidation inhibitor 0.02-0.4
UV light absorber 0.1-0.6
Weighting agent 5-100
Tinting material 0.02-0.04
Described high-impact PVC compound resin HI7 is the polychloroethylene compound resin that the polyacrylic ester in-situ polymerization of Hebei Shenghua Chemical Co., Ltd's production has inierpeneirating network structure; Taking polyacrylic ester latex as matrix, grafting vinyl chloride monomer, forms taking polyacrylic ester as main chain, PVC is the multipolymer of side chain; Mean polymerisation degree 800;
Its production technique is as follows:
A, accurately take batching by formula, first high-impact PVC compound resin HI7, thermo-stabilizer are joined according to the order of sequence and in high-speed mixer, carry out 500 turn/min stirring at low speed and mix, material is by nature temperature arrising caused by friction;
B, in the time that temperature of charge is raised to 60-70 DEG C, add internal lubricant, change 900 turn/min into and continue at a high speed to mix;
C, when being elevated under 80-85 DEG C of condition, temperature of charge is sequentially added into external lubricant, oxidation inhibitor, UV light absorber, weighting agent, tinting material;
D, in the time that mixture temperature rises to 115-120 DEG C, form even dry mix, stop being uniformly mixed;
E, dry mix is entered immediately and in the cold mixer that is connected with 15 DEG C～20 DEG C of water coolants, carry out cold mixedly, rotating speed is 120 turn/min, cold discharging while mixing to 35-40 DEG C;
F, pass through conventional forcing machine granulation, conventional injection moulding machine injection moulding once shaped plastics well lid again.
2. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, it is characterized in that, described thermo-stabilizer is one or more in organotin stabilizer, lead salt stabilizer, calcium-zinc composite stabilizing agent, barium zinc composite stabilizer, potassium zinc composite stabilizer.
3. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, is characterized in that, described internal lubricant is one or more in oxidized polyethlene wax, polyethylene wax, stearin.
4. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, is characterized in that, described external lubricant is one or more in calcium stearate, stearic acid, paraffin.
5. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, is characterized in that, described oxidation inhibitor is one or more in Hinered phenols antioxidant, phosphite oxidation inhibitor, thio-based oxidation inhibitor.
6. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, it is characterized in that, described UV light absorber is one or more in salicylate class, benzophenone class, benzotriazole category, triazines, hindered amines, group-substituted acrylonitrile.
7. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, it is characterized in that, described weighting agent is one or more in Calcium carbonate weighting agent, black pigment bulking agent, silicates weighting agent, silica-based weighting agent, metal oxide weighting agent.
8. the production method of a kind of high-impact PVC compound resin HI7 well lid according to claim 1, is characterized in that, described tinting material is toner, look mother or other pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412234.8A CN102863729B (en) | 2012-10-25 | 2012-10-25 | Production method of high impact polyvinyl chloride (PVC) composite resin HI7 well cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412234.8A CN102863729B (en) | 2012-10-25 | 2012-10-25 | Production method of high impact polyvinyl chloride (PVC) composite resin HI7 well cover |
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| CN102863729B true CN102863729B (en) | 2014-07-09 |
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| FR2725453B1 (en) * | 1994-10-05 | 1996-11-08 | Atochem North America Elf | REINFORCING COMPOSITIONS COMPRISING PRECIPITATED SILICA FOR THERMOPLASTIC POLYMERS HAVING IMPROVED ANTI-CUSTING AND FLOW PROPERTIES |
| CN102352080A (en) * | 2011-11-14 | 2012-02-15 | 鹤山联塑实业发展有限公司 | Formula of high-impact-resistance PVC (polyvinyl chloride) pipe |
| CN102352079B (en) * | 2011-11-14 | 2013-11-06 | 鹤山联塑实业发展有限公司 | Composition of low-temperature high-strength PVC (polyvinyl chloride) pipe |
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