CN103421233A - Low-smoke zero-halogen flame-retardant rubber sheath for rolling stock cable and manufacturing method thereof - Google Patents
Low-smoke zero-halogen flame-retardant rubber sheath for rolling stock cable and manufacturing method thereof Download PDFInfo
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- CN103421233A CN103421233A CN201310329702XA CN201310329702A CN103421233A CN 103421233 A CN103421233 A CN 103421233A CN 201310329702X A CN201310329702X A CN 201310329702XA CN 201310329702 A CN201310329702 A CN 201310329702A CN 103421233 A CN103421233 A CN 103421233A
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Abstract
The invention discloses a low-smoke zero-halogen flame-retardant rubber sheath for a rolling stock cable and a manufacturing method thereof. The low-smoke zero-halogen flame-retardant rubber sheath comprises the following ingredients in parts by weight: 30-36 parts of EVA (Ethylene Vinyl-Acetate) rubber, 0.8-1.0 part of DCP (Di-cumyl Peroxide), 0.3-0.5 part of TAC (Triallyl Cyanurate), 0.4-0.6 part of zinc stearate, 0.15-0.18 part of roll release agent, 0.3-0.6 part of anti-aging agent RD, 27-32 parts of aluminum powder ATH-20, 25-38 parts of ultrafine talcum powder, 3.0-3.5 parts of zinc borate and 0.80-0.85 parts of carbon black. The manufacturing method of the rubber sheath comprises six steps, namely plasticating, mixing, rolling, extruding, molding and vulcanizing. The rubber sheath can meet the requirements for low-smoke, zero-halogen and flame-retardant properties of rolling stocks and meanwhile has the characteristics of heat resistance, oil resistance, acid and alkali resistance, cold resistance, wear resistance, ozone resistance and the like, and physical and mechanical properties are good.
Description
Technical field
The present invention relates to the cable technology field, relate in particular to low-smoke non-halogen flame-retardant eraser sheath and preparation method thereof for a kind of cable for rolling stock.
Background technology
Development along with the rolling stock technology, requirement to the cable on rolling stock is also more and more higher, naturally, requirement to the sheath on cable is also just more and more higher, not only require it to possess good low cigarette, Halogen, flame-retarding characteristic, also require it to have the characteristics such as heat-resisting, oil resistant, acid and alkali-resistance, cold-resistant, wear-resisting and anti-ozone, also require sheath material to have good physical and mechanical properties simultaneously, the sheath of existing cable is obviously undesirable.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of have good low cigarette, Halogen, flame-retarding characteristic, and there are the characteristics such as heat-resisting, oil resistant, acid and alkali-resistance, cold-resistant, wear-resisting and anti-ozone, have low-smoke non-halogen flame-retardant eraser sheath and preparation method thereof for cable for rolling stock of good physical and mechanical properties.
The invention provides first aspect a kind of cable for rolling stock low-smoke non-halogen flame-retardant eraser sheath is provided, each composition and parts by weight thereof are:
EVA rubber 30-36 part;
DCP0.8-1.0 part;
TAC0.3-0.5 part;
Zinic stearas 0.4-0.6 part;
Roll release agent 0.15-0.18 part;
Anti-aging agent RD 0.3-0.6 part;
Aluminium powder ATH-20 27-32 part;
Superfine talcum powder 25-28 part;
Zinc borate 3.0-3.5 part;
Carbon black 0.80-0.85 part.
Preferably, EVA rubber comprises:
EVA40L-03 26-29 part;
EVA7256 4-7 part.
Preferably, also comprise: oily DCS2.5-2.8 part.
Second aspect present invention provides the making method of a kind of cable for rolling stock with the low-smoke non-halogen flame-retardant eraser sheath, comprise above-mentioned cable for rolling stock low-smoke non-halogen flame-retardant eraser sheath, it comprise plasticate, mixing, calendering, extrusion, moulding and vulcanize six steps, wherein:
In the step of plasticating, by mechanical stress, heat, oxygen or add the method such as some chemical reagent, make rubber be changed into the soft plastic state of being convenient to processing by tough elastic stage;
In mixing step, on rubber mixing machine, by various Synergist S-421 95s, mix uniformly in rubber;
Calendering is made film by the rubber after mixing in step or with framework material and make the adhesive plaster work in-process on rolling press, and it comprises the sub-steps such as compressing tablet, laminating, die mould and yarn fabric kiss-coating.
Further, needed to carry out in advance drying glue before mixing step starts, cut glue, select the processing such as glue and broken glue.
Further, before starting, the calendering step needs first sizing material to be turned refining on warm-up mill.
In the present invention, the rubber sheath that described cable for rolling stock makes with low-smoke non-halogen flame-retardant eraser sheath and preparation method thereof can meet the requirement of low cigarette, Halogen and flame-retarding characteristic of rolling stock, have the characteristics such as heat-resisting, oil resistant, acid and alkali-resistance, cold-resistant, wear-resisting and anti-ozone, physical and mechanical properties is good simultaneously.
Embodiment
The invention provides a kind of cable for rolling stock low-smoke non-halogen flame-retardant eraser sheath, each composition and parts by weight thereof are:
EVA40L-03 26-29 part;
EVA7256 4-7 part;
DCP0.8-1.0 part;
TAC0.3-0.5 part;
Zinic stearas 0.4-0.6 part;
Roll release agent 0.15-0.18 part;
Anti-aging agent RD 0.3-0.6 part;
Aluminium powder ATH-20 27-32 part;
Superfine talcum powder 25-28 part;
Zinc borate 3.0-3.5 part;
Carbon black 0.80-0.85 part.
In further embodiment, also comprise oily DCS2.5-2.8 part.
Utilize the parts by weight of mentioned component and composition produce cable for rolling stock by the making method of low-smoke non-halogen flame-retardant eraser sheath, mainly comprise plasticate, mixing, calendering, extrusion, moulding and vulcanize six steps.
In the step of plasticating by mechanical stress, heat, oxygen or add the methods such as some chemical reagent, make rubber be changed into the soft plastic state of being convenient to processing by tough elastic stage, purpose is to reduce its elasticity, increase plasticity-, and obtain suitable mobility, the requirement of, various machining processes such as Asia spread out, extrusion, moulding, sulfuration and rubber cement manufacture, gelatin sponge manufacture mixing to meet.
When mill is plasticated, temperature, generally below 80 ℃, belongs to low temperature mechanically milling method.The dump temperature of Banbury mixer and screw mixing machine, more than 120 ℃, even up to 160-180 ℃, belongs to high-temperature machinery mixing.The present invention does not limit the method for plasticating.
Rubber needs before mixing in advance through drying glue, cuts glue, selects the processing such as glue and broken glue just can plasticate.
In mixing step, on rubber mixing machine, by various Synergist S-421 95s, mix uniformly in rubber; Mixing quality is that the quality on the further processing of sizing material and finished product has conclusive impact, the good sizing material even fill a prescription, if mixing bad, also just there will be Synergist S-421 95 to disperse uneven, the sizing material plasticity number is too high or too low, easily incipient scorch, bloom etc., can not normally carry out the techniques such as calendering, extrusion, gluing and sulfuration, but also can cause product properties to descend.
Compounding process is divided into two kinds of mill mixing and mixer mixings usually.These two kinds of methods are all that intermittent type is mixing, and this is method the most widely at present.The present invention does not limit concrete compounding process at this.
The mixing process of mill is divided into three phases, wraps roller, eats powder and turn refining.
The mixed glue of mill is according to sizing material kind, purposes, performance requriements difference, and processing condition are also different.To note adding the various factorss such as the rotating speed of glue amount, order of addition(of ingredients), roll spacing, roller temperature, mixing time, roller and speed ratio in mixing.Can not mixing deficiency, can not cross refining again.
Mixer mixing is divided into three phases, i.e. moistening, dispersion and alunite refining, mixer mixing stone carry out under high-temperature pressurizing.Working method generally is divided into one section mixing method and two sections mixing methods.
One section mixing method refers to and once completes mixingly through Banbury mixer, and then compressing tablet obtains the method for rubber unvulcanizate.He is applicable to All Pure Nature rubber or is mixed with synthetic rubber be no more than 50% sizing material, in one section mixing operation, the normal progressively reinforced method that adopts in batches, for making sizing material be unlikely to violent rising, generally adopt Banbury mixer at a slow speed, also can adopt the double speed Banbury mixer, the temperature while adding sulphur must be lower than 100 ℃.Its order of addition(of ingredients) is rubber-small powder-strengthening agent-weighting agent-oil-softener-discharge-cooling-add sulphur and ultraaccelerator.
Two sections mixing methods refer to makes the method for rubber unvulcanizate twice by the mixer mixing compressing tablet.This method is applicable to synthetic rubber content and obtains sizing material over 50%, can avoid the shortcoming that in one section mixing method process, mixing time is long, the sizing material temperature is high.First stage is mixing the same with one section mixing method, does not just add sulfuration and active large promotor, one section mixing complete rear lower cooling, park the regular hour, and then it is mixing to carry out second segment.Mixing evenly rear discharge adds vulcanizing agent to tabletting machine again, turns refining latter lower.The mixing method of segmentation refines that the glue time is shorter at every turn, and melting temperature is lower, and Synergist S-421 95 disperses more even, and the sizing material quality is high.
Calendering is made film by the rubber after mixing in step or with framework material and make the adhesive plaster work in-process on rolling press, and it comprises the sub-steps such as compressing tablet, laminating, die mould and yarn fabric kiss-coating.
The major equipment that the calendering step adopts is rolling press, and rolling press is comprised of work roller, frame, support, transmission mechanism, speed governing and roll-setting gear, roller heating and cooling device, oiling system and quick stopping mechnism.
And calender line comprises following operation: the preheating of rubber unvulcanizate and confession glue; Leading out and drying of yarn fabric.
The compressing tablet of sizing material on four rollers or tri-roll press machine or on yarn fabric kiss-coating according to the machine calendering half-finished cooling, batch, block, placement etc.
Before being rolled, need to carry out preprocessing to sizing material and yarn fabric, before sizing material enters rolling press, need first it to be turned refining on warm-up mill, this technique is heat refining or claims preheating, its objective is the mixing homogeneity that improves sizing material, further increase plasticity-, improve temperature, increase plasticity-.In order to improve the bond properties of sizing material and yarn fabric, guarantee the calendering quality, need to be dried fabric, moisture control is at 1-2%, and water content is low, stiffen fabrics, fragile in calendering, water content is high, poor adhesion.
To sum up, the rubber sheath that described cable for rolling stock provided by the invention makes with low-smoke non-halogen flame-retardant eraser sheath and preparation method thereof can meet the requirement of low cigarette, Halogen and flame-retarding characteristic of rolling stock, have the characteristics such as heat-resisting, oil resistant, acid and alkali-resistance, cold-resistant, wear-resisting and anti-ozone, physical and mechanical properties is good simultaneously.
The above has carried out exemplary description to the present invention; obvious realization of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted technical solution of the present invention to carry out; or without improving, design of the present invention and technical scheme are directly used in to other occasion, all in protection scope of the present invention.
Claims (6)
1. a cable for rolling stock low-smoke non-halogen flame-retardant eraser sheath, is characterized in that, each composition and parts by weight thereof are:
EVA rubber 30-36 part;
DCP0.8-1.0 part;
TAC0.3-0.5 part;
Zinic stearas 0.4-0.6 part;
Roll release agent 0.15-0.18 part;
Anti-aging agent RD 0.3-0.6 part;
Aluminium powder ATH-20 27-32 part;
Superfine talcum powder 25-28 part;
Zinc borate 3.0-3.5 part;
Carbon black 0.80-0.85 part.
2. cable for rolling stock according to claim 1 low-smoke non-halogen flame-retardant eraser sheath, is characterized in that, EVA rubber comprises:
EVA40L-03 26-29 part;
EVA7256 4-7 part.
3. cable for rolling stock according to claim 1 low-smoke non-halogen flame-retardant eraser sheath, is characterized in that, also comprises: oily DCS2.5-2.8 part.
4. the making method of low-smoke non-halogen flame-retardant eraser sheath for a cable for rolling stock, comprise cable for rolling stock low-smoke non-halogen flame-retardant eraser sheath as described as any one in claim 1-3, it is characterized in that, comprise plasticate, mixing, calendering, extrusion, moulding and vulcanize six steps, wherein:
In the step of plasticating, by mechanical stress, heat, oxygen or add the method such as some chemical reagent, make rubber be changed into the soft plastic state of being convenient to processing by tough elastic stage;
In mixing step, on rubber mixing machine, by various Synergist S-421 95s, mix uniformly in rubber;
Calendering is made film by the rubber after mixing in step or with framework material and make the adhesive plaster work in-process on rolling press, and it comprises the sub-steps such as compressing tablet, laminating, die mould and yarn fabric kiss-coating.
5. the making method of low-smoke non-halogen flame-retardant eraser sheath for cable for rolling stock as claimed in claim 4, is characterized in that, needed to carry out in advance drying glue before mixing step starts, cut glue, selects the processing such as glue and broken glue.
6. the making method of low-smoke non-halogen flame-retardant eraser sheath for cable for rolling stock as claimed in claim 4, is characterized in that, before the calendering step starts, needs first sizing material to be turned refining on warm-up mill.
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| CN201310329702XA CN103421233A (en) | 2013-07-31 | 2013-07-31 | Low-smoke zero-halogen flame-retardant rubber sheath for rolling stock cable and manufacturing method thereof |
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| CN201310329702XA CN103421233A (en) | 2013-07-31 | 2013-07-31 | Low-smoke zero-halogen flame-retardant rubber sheath for rolling stock cable and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330951A (en) * | 2015-11-17 | 2016-02-17 | 中广核三角洲（江苏）塑化有限公司 | Low-smoke halogen-free and flame-retardant sheath material with high-temperature aging resistance and preparation method of sheath material |
| CN113321917A (en) * | 2021-06-15 | 2021-08-31 | 福建燚塑光电科技有限公司 | Polycarbonate calendering process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445630A (en) * | 2008-12-31 | 2009-06-03 | 安徽纵横高科电缆股份有限公司 | sCable material for high-strength and ultra-soft oil-proof rubber elastic body, and preparation method thereof |
-
2013
- 2013-07-31 CN CN201310329702XA patent/CN103421233A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445630A (en) * | 2008-12-31 | 2009-06-03 | 安徽纵横高科电缆股份有限公司 | sCable material for high-strength and ultra-soft oil-proof rubber elastic body, and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330951A (en) * | 2015-11-17 | 2016-02-17 | 中广核三角洲（江苏）塑化有限公司 | Low-smoke halogen-free and flame-retardant sheath material with high-temperature aging resistance and preparation method of sheath material |
| CN113321917A (en) * | 2021-06-15 | 2021-08-31 | 福建燚塑光电科技有限公司 | Polycarbonate calendering process |
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Application publication date: 20131204 |