CN103804822A - Micro-foaming hard PVC (polyvinyl chloride) alloy sheet and manufacturing technology thereof - Google Patents
Micro-foaming hard PVC (polyvinyl chloride) alloy sheet and manufacturing technology thereof Download PDFInfo
- Publication number
- CN103804822A CN103804822A CN201410071937.8A CN201410071937A CN103804822A CN 103804822 A CN103804822 A CN 103804822A CN 201410071937 A CN201410071937 A CN 201410071937A CN 103804822 A CN103804822 A CN 103804822A
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- Prior art keywords
- micro
- parts
- district
- rigid pvc
- pvc sheet
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Classifications
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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
- B29C48/92—Measuring, controlling or regulating
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a micro-foaming hard PVC (polyvinyl chloride) alloy sheet and a manufacturing technology thereof. The micro-foaming hard PVC alloy sheet is characterized by comprising the following raw materials in parts by weight: 100 parts of PVC resin, 4.5 parts of ACR resin, 2.5-5 parts of foaming agent, 1-3 parts of plasticizer, 1.5-10 parts of stabilizer, 1-3 parts of external lubricating agent, 1-3 parts of inner lubricating agent, 4-6 parts of filling material and 2-3 parts of nucleating agent. The cost of the product can be effectively reduced; the defects of relatively high price and high specific gravity existing in HIPS (High Impact Polystyrene) and common hard PCV sheets are avoided.
Description
Technical field
The present invention relates to a kind of micro-blown rigid PVC sheet alloy and manufacture craft thereof.
Background technology
At present, be applied to household electrical appliances postnotum sheet material and be roughly impact resistant polystyrene HIPS material or rigid polyvinyl chloride PVC plate, it is higher that this kind of material made board cost, and proportion is larger, HIPS proportion is approximately 1.05, hard PVC proportion is approximately 1.6-1.7, is unfavorable for improving the product performance of household electric appliances.
Summary of the invention
The present invention overcomes the weak point that prior art exists, and provides that a kind of cost is lower, micro-blown rigid PVC sheet alloy and the manufacture craft thereof of better performances, thereby improves the performance of household electrical appliances sheet material.
Technical solution problem of the present invention adopts following technical scheme:
The feature of a kind of micro-blown rigid PVC sheet alloy of the present invention is the raw material composition by mass parts:
100 parts of polyvinyl chloride resins, 4.5 parts of ACR resins, whipping agent 2.5-5 part, softening agent 1-3 part, stablizer 1.5-10 part, external lubricant 1-3 part, internal lubricant 1-3 part, stopping composition 4-6 part, nucleator 2-3 part.
The feature of the micro-blown rigid PVC of the present invention sheet alloy is also:
Described whipping agent is Cellmic C 121 AC whipping agent.
Described softening agent is epoxy soybean oil.
Described stablizer is calcium tin one package stabilizer.
Described external lubricant is paraffin, and internal lubricant is calcium stearate or Zinic stearas.
Described stopping composition is calcium carbonate CaCO
3.
Described nucleator is titanium dioxide TiO
2.
The feature of the manufacture craft of a kind of micro-blown rigid PVC sheet alloy of the present invention is to carry out according to the following steps:
Step 1, stir: a, polyvinyl chloride resin and ACR resin are added to the mixed machine of heat and add stablizer;
B, the mixed machine of startup heat, in the time of 80 ℃ ± 5 ℃, add internal lubricant and stopping composition;
C, in the time of 100 ℃ ± 5 ℃, add external lubricant;
D, in the time of 100 ℃ ± 5 ℃, then add whipping agent;
E, in the time of 125 ℃ ± 5 ℃, the mixture in mixed heat machine is sent in the cold mixer rotating;
Step 2, cold stirring: in cold mixer, stir and be cooled to 45 ℃ of following rear mixture, naturally cooling stand for standby use of discharging;
Step 3, material loading: cooled mixture is transported to extruder for shaping, described forcing machine is evenly segmented into district's feeding section, two district's mixing sections, three pressure stage He Si district of district discharging sections from opening for feed to discharge port, it is 170-180 ℃ that one district's feeding section temperature is set, two district's mixing section temperature are 160-160 ℃, three district's pressure stage temperature are 165-175 ℃, and four district's discharging section temperature are 165-175 ℃.
Compared with the prior art, beneficial effect of the present invention is embodied in:
Micro-blown rigid PVC sheet alloy of the present invention is the high-quality sheet material forming by special formulation, strict order of addition(of ingredients) and process parameter control, there is thermal conductivity low, heat insulation and preservation effect is good, high flame retardant, resistance to chemical corrosion, the features such as excellent weathering resistance, can reduce the amount of resin in goods unit volume effectively, reduce the cost of goods, avoided HIPS used all the time, ordinary rigid PVC sheet material price is higher, proportion is larger defect.
Accompanying drawing explanation
Fig. 1 is fabrication processing figure of the present invention.
Embodiment
Referring to Fig. 1, in the present embodiment, a kind of manufacture craft of micro-blown rigid PVC sheet alloy is to carry out according to the following steps:
Step 1, batching: raw-material proportioning by mass parts is,
100 parts of polyvinyl chloride resins, 4.5 parts of ACR resins, whipping agent 2.5-5 part, softening agent 1-3 part, stablizer 1.5-10 part, external lubricant 1-3 part, internal lubricant 1-3 part, stopping composition 4-6 part, nucleator 2-3 part.
Wherein, whipping agent is Cellmic C 121 AC whipping agent; Softening agent is epoxy soybean oil; Stablizer is calcium tin one package stabilizer Ca/Sn; External lubricant is paraffin, and internal lubricant is calcium stearate or Zinic stearas; ; Stopping composition is calcium carbonate CaCO
3; Nucleator is titanium dioxide TiO
2.
Step 2, height stir: each constituent materials need be undertaken by definite order of addition(of ingredients) while stirring, is followed successively by resin, stablizer, internal lubricant, stopping composition, external lubricant, whipping agent; That is:
A, polyvinyl chloride resin and ACR resin are added to the mixed machine of heat and add stablizer; So that stablizer and resin are blended in equably early and have given play to stabilization in intensification.
The motor of b, the mixed machine of low rate start heat, normally moves rear motor and enters high-speed mixing state;
C, at 80 ℃ ± 5 ℃, under high rotating speed, add internal lubricant and stopping composition;
D, at 100 ℃ ± 5 ℃, under high rotating speed, add external lubricant, in order to avoid wax class is disturbed the dispersion of other auxiliary agent, avoid resin particle skin friction coefficient reduce, thereby extend mixing time.
E, at 100 ℃ ± 5 ℃, under high rotating speed, then add whipping agent, whipping agent is mixed with polyvinyl chloride resin.
F, at 125 ℃ ± 5 ℃, under the slow speed of revolution, the mixture in mixed heat machine is sent in the cold mixer rotating;
Step 3, cold stirring: in cold mixer, stir and be cooled to 45 ℃ of following rear mixtures of discharging, naturally cooling is cooled to room temperature, stand for standby use;
Step 4, material loading: cooled mixture is transported to extruder for shaping; Forcing machine is evenly segmented into district's feeding section, two district's mixing sections, three pressure stage He Si district of district discharging sections from opening for feed to discharge port; Wherein, mixture is set at the temperature setting in forcing machine stage: district's feeding section temperature is 170-180 ℃, and two district's mixing section temperature are 160-160 ℃, and three district's pressure stage temperature are 165-175 ℃, and four district's discharging section temperature are 165-175 ℃;
It is 165-175 ℃ that lip region temperature is set, and handpiece body regional temperature is 170-180 ℃, and in screw rod, oil temperature is 70-90 ℃.The good resin of proportioning in forcing machine after twin-screw extrusion foaming process Bing tetra-district's discharging sections fusion plastification, in the time of molten resin process die extrusion, whipping agent decomposing goes out gas, and make goods become unicellular structure sheet material, sheet material is three roll-in flowers under Microsoft's state, and after cooling and shaping, both sides trimming automatically, cuts unnecessary scrap stock, be cut to desired size through sheet shears again, naturally cool to room temperature packaging and warehousing.
Micro-blown rigid PVC sheet alloy of the present invention can be widely used in household electric appliances, and such as refrigerator, refrigerator-freezer, air-conditioning postnotum etc., have a extensive future.
Claims (8)
1. a micro-blown rigid PVC sheet alloy, is characterized in that the raw material composition by mass parts:
100 parts of polyvinyl chloride resins, 4.5 parts of ACR resins, whipping agent 2.5-5 part, softening agent 1-3 part, stablizer 1.5-10 part, external lubricant 1-3 part, internal lubricant 1-3 part, stopping composition 4-6 part, nucleator 2-3 part.
2. micro-blown rigid PVC sheet alloy according to claim 1, is characterized in that: described whipping agent is Cellmic C 121 AC whipping agent.
3. micro-blown rigid PVC sheet alloy according to claim 1, is characterized in that: described softening agent is epoxy soybean oil.
4. micro-blown rigid PVC sheet alloy according to claim 1, is characterized in that: described stablizer is calcium, tin one package stabilizer.
5. micro-blown rigid PVC sheet alloy according to claim 1, is characterized in that: described external lubricant is paraffin, and internal lubricant is calcium stearate or Zinic stearas.
6. micro-blown rigid PVC sheet alloy according to claim 1, is characterized in that: described stopping composition is calcium carbonate CaCO
3.
7. micro-blown rigid PVC sheet alloy according to claim 1, is characterized in that: described nucleator is titanium dioxide TiO
2.
8. a manufacture craft for micro-blown rigid PVC sheet alloy claimed in claim 1, is characterized in that carrying out according to the following steps:
Step 1, stir: a, polyvinyl chloride resin and ACR resin are added to the mixed machine of heat and add stablizer;
B, the mixed machine of startup heat, in the time of 80 ℃ ± 5 ℃, add internal lubricant and stopping composition;
C, in the time of 100 ℃ ± 5 ℃, add external lubricant;
D, in the time of 100 ℃ ± 5 ℃, then add whipping agent;
E, in the time of 125 ℃ ± 5 ℃, the mixture in mixed heat machine is sent in the cold mixer rotating;
Step 2, cold stirring: in cold mixer, stir and be cooled to 45 ℃ of following rear mixture, naturally cooling stand for standby use of discharging;
Step 3, material loading: cooled mixture is transported to extruder for shaping, described forcing machine is evenly segmented into district's feeding section, two district's mixing sections, three pressure stage He Si district of district discharging sections from opening for feed to discharge port, it is 170-180 ℃ that one district's feeding section temperature is set, two district's mixing section temperature are 160-160 ℃, three district's pressure stage temperature are 165-175 ℃, and four district's discharging section temperature are 165-175 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071937.8A CN103804822A (en) | 2014-02-28 | 2014-02-28 | Micro-foaming hard PVC (polyvinyl chloride) alloy sheet and manufacturing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071937.8A CN103804822A (en) | 2014-02-28 | 2014-02-28 | Micro-foaming hard PVC (polyvinyl chloride) alloy sheet and manufacturing technology thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103804822A true CN103804822A (en) | 2014-05-21 |
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|---|---|---|---|
| CN201410071937.8A Pending CN103804822A (en) | 2014-02-28 | 2014-02-28 | Micro-foaming hard PVC (polyvinyl chloride) alloy sheet and manufacturing technology thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104908169A (en) * | 2015-06-16 | 2015-09-16 | 凤阳九龙新型建材有限公司 | Mixing method of PVC (Polyvinyl Chloride) pipes |
| CN104909177A (en) * | 2015-05-21 | 2015-09-16 | 六安中财管道科技有限公司 | Automatic weighing, mixing, conveying, storing and feeding process for PVC profile raw materials |
| CN110734570A (en) * | 2019-09-29 | 2020-01-31 | 浙江杰上杰新材料有限公司 | PVC (polyvinyl chloride) formamide-free foaming agent |
| CN114854143A (en) * | 2022-04-26 | 2022-08-05 | 汪旭 | Flame-retardant PVC composite material for refrigerator back plate and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101407613A (en) * | 2008-10-30 | 2009-04-15 | 胡大忠 | PVC foaming architectural decoration material and preparation technique thereof |
| CN102040785A (en) * | 2010-11-29 | 2011-05-04 | 山东鑫海汽车配件有限公司 | Polyvinyl chloride/chlorinated polyvinyl chloride skin foamed sheet and preparation method thereof |
| CN102729480A (en) * | 2012-07-10 | 2012-10-17 | 苏州宝津塑业有限公司 | Method for producing low-foaming PVC (polyvinyl chloride) crust board |
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2014
- 2014-02-28 CN CN201410071937.8A patent/CN103804822A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407613A (en) * | 2008-10-30 | 2009-04-15 | 胡大忠 | PVC foaming architectural decoration material and preparation technique thereof |
| CN102040785A (en) * | 2010-11-29 | 2011-05-04 | 山东鑫海汽车配件有限公司 | Polyvinyl chloride/chlorinated polyvinyl chloride skin foamed sheet and preparation method thereof |
| CN102729480A (en) * | 2012-07-10 | 2012-10-17 | 苏州宝津塑业有限公司 | Method for producing low-foaming PVC (polyvinyl chloride) crust board |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104909177A (en) * | 2015-05-21 | 2015-09-16 | 六安中财管道科技有限公司 | Automatic weighing, mixing, conveying, storing and feeding process for PVC profile raw materials |
| CN104908169A (en) * | 2015-06-16 | 2015-09-16 | 凤阳九龙新型建材有限公司 | Mixing method of PVC (Polyvinyl Chloride) pipes |
| CN110734570A (en) * | 2019-09-29 | 2020-01-31 | 浙江杰上杰新材料有限公司 | PVC (polyvinyl chloride) formamide-free foaming agent |
| CN114854143A (en) * | 2022-04-26 | 2022-08-05 | 汪旭 | Flame-retardant PVC composite material for refrigerator back plate and preparation method thereof |
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Application publication date: 20140521 |