CN103665672B - One is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material - Google Patents
One is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material Download PDFInfo
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- CN103665672B CN103665672B CN201310682066.9A CN201310682066A CN103665672B CN 103665672 B CN103665672 B CN 103665672B CN 201310682066 A CN201310682066 A CN 201310682066A CN 103665672 B CN103665672 B CN 103665672B
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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
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
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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
- B29C48/03—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
- B29C48/06—Rod-shaped
-
- 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
-
- 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention provides and a kind of heat-resistingly exempt from irradiation PVC fire retardant insulating automotive line material, by polyvinyl chloride, stablizer, softening agent, weighting agent, fire retardant, lubricant, acrylate with formed by the raw material of skin couplant according to following weight percent: 45-57%; 4.2-6.7%; 21-22.8%; 14-19.5%; 0.7-1.2%; 0.7-0.8%; 0.45-1.6%; 1.4-3.1%.The present invention by high kneading and, extrude feeding, extruding pelletization and water-cooled three steps and complete.Wire rod light specific gravity provided by the invention, physical and mechanical properties is good; Need not can reach cable 125 DEG C of life-time service job requirements by cross-linking radiation, realize environmental protection flame retardant; Easy processing, just can produce with traditional PVC wire rod forcing machine, and have good wire rod extruded velocity, extrude wire rod surface smoothness very excellent, wire rod snappiness is high, line wall is thin.
Description
Technical field
The present invention relates to a kind of flame-retardant insulating material, particularly a kind of resistance to 125 DEG C of high temperature exempt from irradiation fire retardant insulating pvc material.
Background technology
Mainly polyvinyl chloride is used in electric wire, but because it belongs to the not high material of heatproof, when electric wire is in operation existence outside and internal fault, electric wire is easy to require produce colloidal sol and burn because temperature resistant grade does not reach, in order to reduce breakdown loss, need increase in the material special by skin couplant material to improve thermal stability of polyethylene.Traditional the highest long-term temperature resistant grade of polyvinyl chloride electrical wire and cable material can only reach 105 DEG C, too high or the load height once electric current, traditional polyvinyl chloride electrical wire and cable is the also presence of fire of colloidal sol cracking extremely easily, easily produces a large amount of smog to the environment of surrounding.
The automotive line Insulation Material of heatproof 125 DEG C has two kinds on the market now: a kind of is that another kind is the polyolefine material of two step method crosslinked with silicane through electron accelerator irradiation crosslinked polyolefine material.Wherein based on cross-linking radiation, but irradiation apparatus investment is large, a large amount of waste water is produced big for environment pollution during irradiation, cost for wastewater treatment is too high simultaneously, and during irradiation, ray also cannot be estimated the injury of operator's health, larger to the injury of material in cross-linking radiation process, material internal easily produces residual components, and be difficult in extrusion process switch color, be difficult to clear, and wire rod easily ftracture through irradiation.And the silane polyolefine material of cross-linking type needs point two step method could realize being cross-linked, technique is comparatively complicated, and time-consuming, and it need separate to extrude separately makes material, mixes when producing electric wire again; Will could there is crosslinking reaction by poach or steam in the stranding produced, a large amount of moisture reduces the mechanical property of material, and energy consumption is comparatively large, and performance is extremely unstable, brings very large unstable to product quality, and product staging life is short.
Summary of the invention
For above-mentioned defect and the problem of prior art, the object of the invention is to provide a kind of heat-resistingly exempts from irradiation PVC fire retardant insulating automotive line material, it has superior flame retardant properties, and there is excellent mechanical property, especially high pliability and oil resistant, fire-retardant, high and low temperature resistance, can use within the scope of-40 DEG C-125 DEG C, product hardness has controllability, and processing characteristics is excellent.
In order to achieve the above object, the present invention realizes by the following technical solutions:
One is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material, it is characterized in that: be made up of the raw material of following weight percent:
Polyvinyl chloride: 45-57%
Stablizer: 4.2-6.7%
Softening agent: 21-22.8%
Weighting agent: 14-19.5%
Fire retardant: 0.7-1.2%
Lubricant: 0.7-0.8%
Acrylate: 0.45-1.6%
By skin couplant: 1.4-3.1%,
Describedly to be made up of according to the weight of 3:1:2.5 calcium oxide, lipophilicity promoting agent and tensio-active agent by skin couplant, and above-mentioned raw materials is through following treatment step:
1) high kneading and: carry out adjustment knead adding successively in high-speed kneading machine according to the polyvinyl chloride of said ratio, stablizer, softening agent, weighting agent, lubricant, acrylate and fire retardant, add by skin couplant high-speed stirring when material temperature reaches 110 DEG C, when temperature reaches 130 DEG C, discharge cools to cold mixer;
2) extrude feeding: when raw material temperature in cold mixer drops to 50 DEG C, raw material is put into and extrudes feeding machine and extrude feeding;
3) extruding pelletization, water-cooled: feeding is delivered to twin screw extruder, after twin screw extruder granulation, carry out water-cooling hot cutting, wherein, the temperature in twin screw extruder Zhong Ge district controls as follows, and intake zone is 170 DEG C-180 DEG C, and plasticizing zone is 185 DEG C-190 DEG C, head temperature is 190 DEG C-195 DEG C, and the temperature of water-cooled is 20 DEG C-40 DEG C.
Further technical scheme, described stablizer is powder calcium zinc stabilizer.
Further technical scheme, described softening agent is polyester plasticizer.
Further technical scheme, described weighting agent is nano active light calcium carbonate.
Further technical scheme, described fire retardant is antimonous oxide.
Further technical scheme, described lubricant is PE wax.
In the present invention, the effect adding each component in polyvinyl chloride is as follows:
Powder calcium zinc stabilizer is in the course of processing, good dispersiveness, consistency, processing fluidity, thermostability is had with polyvinyl chloride, improve surface smoothness of the present invention, this stablizer can slow down reaction simultaneously, keep chemical equilibrium, reduce surface tension, prevent light, thermolysis or oxygenolysis etc.;
The molecular structure of polyester plasticizer has polar portion and nonpolar moiety, plasticizer molecule can insert between high-polymer molecular chain, weakens Intermolecular Forces, increases the Distance geometry activity space between high-polymer molecular chain, increase the plasticity of superpolymer, reduce the processing temperature of superpolymer;
Nano active light calcium carbonate has toughened and reinforced effect, improves flexural strength of the present invention, the elasticity of flexure, heat-drawn wire and dimensional stability, also improves hardness of the present invention, surface luster and profile pattern, imparts that it is stagnant hot simultaneously;
Antimonous oxide, as fire retarding synergist, makes flame retardant effect of the present invention significantly improve, and releases H during its reaction
2o, and generate the antimony halides that fusing point is lower, can gasify, play the effect of dilution inflammable gas, its relative density is larger simultaneously, be covered in polymer surface and completely cut off air, can carbonization reaction be promoted, reduce the temperature of firing system, HO and H free in gas phase in combustion processes can be caught, thus suppress burning;
PE wax has excellent external lubrication effect and stronger internal lubrication effect, by the auxiliary agent improved for the purpose of oilness, minimizing friction, reduction Interface Adhesion performance, lubricant, except improving mobility, can also play melting promotor, anti and the effect such as antistatic agent, slipping agent;
Acrylate, for improvement of the rheological property of thermoplastic melt of the present invention, improves the melt mechanical property under thermo-elasticity state, accelerates the plasticizing process of PVC and improves its visual appearance.
The present invention is by adding stablizer, softening agent, weighting agent, lubricant, acrylate, fire retardant and homemade by skin couplant at polyvinyl chloride, and make polyvinyl chloride light specific gravity provided by the invention, physical and mechanical properties is good, has fabulous Balance; Need not can reach cable 125 DEG C of life-time service job requirements by cross-linking radiation, realize environmental protection flame retardant; Compared to traditional cross-linking radiation more than 125 DEG C polyolefine non-halogen flame-retardant cables, this product has more superior over-all properties, as better in flame retardant resistance, Heat stability is good, without any drippage; Compare thermoset PVC and other materials, waste material can recycling, indirectly reduces production cost; Easy processing, just can produce with traditional PVC wire rod forcing machine, and have good wire rod extruded velocity, extrude wire rod surface smoothness very excellent, wire rod snappiness is high, line wall is thin.
Embodiment
Be clearly and completely described technical scheme of the present invention below, obviously, described embodiment is only one embodiment of the invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The invention provides and a kind of heat-resistingly exempt from irradiation PVC fire retardant insulating automotive line material, be made up of the raw material of following weight percent: polyvinyl chloride: 47.48%; Powder calcium zinc stabilizer: 6.65%; Polyester plasticizer: 22.79%; Nano active light calcium carbonate: 19%; Antimonous oxide: 0.95%; PE wax: 0.76%; Acrylate: 0.47%; By skin couplant: 1.9%.Wherein, be made up of according to the raw material of the weight of 3:1:2.5 calcium oxide, lipophilicity promoting agent, tensio-active agent by skin couplant.
Embodiment 2
The invention provides and a kind of heat-resistingly exempt from irradiation PVC fire retardant insulating automotive line material, be made up of the raw material of following weight percent: polyvinyl chloride: 56.87%; Powder calcium zinc stabilizer: 4.25%; Polyester plasticizer: 21.2%; Nano active light calcium carbonate: 14.18%; Antimonous oxide: 0.7%; PE wax: 0.7%; Acrylate: 0.7%; By skin couplant: 1.4%.Consistent with embodiment 1 by the formula of skin couplant.
Embodiment 3
The invention provides and a kind of heat-resistingly exempt from irradiation PVC fire retardant insulating automotive line material, be made up of the raw material of following weight percent: polyvinyl chloride: 46.3%; Powder calcium zinc stabilizer: 6.17%; Polyester plasticizer: 21.6%; Nano active light calcium carbonate: 19.3%; Antimonous oxide: 1.2%; PE wax: 0.79%; Acrylate: 1.54%; By skin couplant: 3.1%.Consistent with embodiment 1 by the formula of skin couplant.
Product manufactured according to the present invention carries out experiment detection with reference to the standard of QC/T730-2005 automobile thin-walled insulation low tension wire, and it detects data as table 1 time, meets the standard-required of QC/T730-2005, and can work at the temperature of-40 DEG C-125 DEG C.
Table 1 experimental data of the present invention
Above-described embodiment is undertaken by following preparation method, comprises the following steps:
1) high kneading and: polyvinyl chloride, stablizer, softening agent, weighting agent, lubricant, acrylate and fire retardant are added successively in high-speed kneading machine and carry out adjustment and knead, add by skin couplant high-speed stirring when material temperature reaches 110 DEG C, when temperature reaches 130 DEG C, discharge cools to cold mixer;
2) extrude feeding: when raw material temperature in cold mixer drops to 50 DEG C, raw material is put into and extrudes feeding machine and extrude feeding;
3) extruding pelletization, air-cooled: feeding is delivered to twin screw extruder, after twin screw extruder granulation, carry out water-cooling hot cutting, wherein, the temperature in twin screw extruder Zhong Ge district controls as follows, intake zone is 170 DEG C-180 DEG C, and plasticizing zone is 185 DEG C-190 DEG C, and head temperature is 190 DEG C-195 DEG C.
Take diameter as the screw extrusion press of 120mm be example, before start, the heating preheatings in four hours of 100 DEG C are carried out in reply intake zone, feeding is made to arrive pre-heat effect, then arrange the temperature in twin screw extruder Zhong Ge district, when head reaches 185 DEG C, intake zone is 170 DEG C, when plasticizing zone is 190 DEG C, open twin screw extruder, meet after granulation that plasticizing requires is extruded and should cool with the water temperature of 20 ~ 40 DEG C, thus produce meet heat-proof combustion-resistant insulating requirements exempt from irradiation polyvinyl chloride.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (6)
1. heat-resistingly exempt from an irradiation PVC fire retardant insulating automotive line material, it is characterized in that: be made up of the raw material of following weight percent:
Describedly to be made up of according to the weight of 3:1:2.5 calcium oxide, lipophilicity promoting agent and tensio-active agent by skin couplant, and above-mentioned raw materials is through following treatment step:
1) high kneading and: carry out adjustment knead adding successively in high-speed kneading machine according to the polyvinyl chloride of said ratio, stablizer, softening agent, weighting agent, lubricant, acrylate and fire retardant, add by skin couplant high-speed stirring when material temperature reaches 110 DEG C, when temperature reaches 130 DEG C, discharge cools to cold mixer;
2) extrude feeding: when raw material temperature in cold mixer drops to 50 DEG C, raw material is put into and extrudes feeding machine and extrude feeding;
3) extruding pelletization, water-cooled: feeding is delivered to twin screw extruder, after twin screw extruder granulation, carry out water-cooling hot cutting, wherein, the temperature in twin screw extruder Zhong Ge district controls as follows, and intake zone is 170 DEG C-180 DEG C, and plasticizing zone is 185 DEG C-190 DEG C, head temperature is 190 DEG C-195 DEG C, and the temperature of water-cooled is 20 DEG C-40 DEG C.
2. one according to claim 1 is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material, it is characterized in that: described stablizer is powder calcium zinc stabilizer.
3. one according to claim 1 and 2 is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material, it is characterized in that: described softening agent is polyester plasticizer.
4. one according to claim 1 and 2 is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material, it is characterized in that: described weighting agent is nano active light calcium carbonate.
5. one according to claim 1 and 2 is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material, it is characterized in that: described fire retardant is antimonous oxide.
6. one according to claim 1 and 2 is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material, it is characterized in that: described lubricant is PE wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310682066.9A CN103665672B (en) | 2013-12-13 | 2013-12-13 | One is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material |
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| CN201310682066.9A CN103665672B (en) | 2013-12-13 | 2013-12-13 | One is heat-resisting exempts from irradiation PVC fire retardant insulating automotive line material |
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| CN103665672A CN103665672A (en) | 2014-03-26 |
| CN103665672B true CN103665672B (en) | 2016-01-20 |
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| CN105419145A (en) * | 2014-09-17 | 2016-03-23 | 重庆维尔特建材有限公司 | Flame retardant plastic for wiring box, and preparation method thereof |
| CN104900312A (en) * | 2015-06-05 | 2015-09-09 | 常熟市鑫华电子科技有限公司 | Special round control flexible cable for fan motors |
| CN104900310A (en) * | 2015-06-05 | 2015-09-09 | 常熟市鑫华电子科技有限公司 | Special thin-wall round control flexible cable for fan motors |
| CN104900311A (en) * | 2015-06-05 | 2015-09-09 | 常熟市鑫华电子科技有限公司 | Special thin-wall control flexible cable for fan motors |
| CN107446267A (en) * | 2017-08-18 | 2017-12-08 | 苏州爱得华塑化有限公司 | Charging pile cable jacket material and preparation method |
| CN107446266A (en) * | 2017-08-18 | 2017-12-08 | 苏州爱得华塑化有限公司 | 125 DEG C of EV new energy in-car high-voltage line Insulation Materials and preparation method |
| CN109161122A (en) * | 2018-07-18 | 2019-01-08 | 浙江威思康塑胶有限公司 | A kind of low-gravity selfreparing PVC cable material |
| CN109181141A (en) * | 2018-07-18 | 2019-01-11 | 浙江威思康塑胶有限公司 | A kind of preparation method of low-gravity selfreparing PVC cable material |
| CN108864604A (en) * | 2018-07-18 | 2018-11-23 | 浙江威思康塑胶有限公司 | A kind of high-strength PVC cable material of low-gravity |
| CN109054240A (en) * | 2018-07-18 | 2018-12-21 | 浙江威思康塑胶有限公司 | A kind of preparation method of the high-strength PVC cable material of low-gravity |
| CN109473219A (en) * | 2018-09-03 | 2019-03-15 | 航天瑞奇电缆有限公司 | Super soft heat resist modification polyvinyl chloride flame-proof environmental protection road vehicle high-tension cable and preparation method |
| CN112375314A (en) * | 2020-11-30 | 2021-02-19 | 上杭建润电子科技有限公司 | Plastic material with good flame retardance and low temperature resistance and preparation method thereof |
| CN116082758B (en) * | 2022-09-09 | 2024-06-04 | 乐庭电线工业（惠州）有限公司 | Thermoplastic long-term water boiling resistant polyvinyl chloride insulating sizing material and preparation method thereof |
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| CN103665672A (en) | 2014-03-26 |
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