CN1148133A - Anti-static and flame-retardant composite for plastic conveyer roller of coal mine and its mfg. method - Google Patents
Anti-static and flame-retardant composite for plastic conveyer roller of coal mine and its mfg. method Download PDFInfo
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- CN1148133A CN1148133A CN 96115855 CN96115855A CN1148133A CN 1148133 A CN1148133 A CN 1148133A CN 96115855 CN96115855 CN 96115855 CN 96115855 A CN96115855 A CN 96115855A CN 1148133 A CN1148133 A CN 1148133A
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Abstract
The composite material for making underground plastic carrier roller for belt conveyer in coal mine is composed of polyvinyl chloride, copolymer of methyl methacrylate-butadiene-styrene, lead tribasic sulfate, lead bibasic phosphite, dioctyl o-phthalate, acrylic polymer, barium stearate, lead stearate, triphenyl phosphite, low-molecular weight polyethylene, calcium carbonate and metal powder. Said invented product has the advantages of anti-static, wear-resisting, resisting corrosion, light weight and simple prepn. method.
Description
The present invention relates to a kind of improvement of ribbon conveyer roller material, is a kind of antistatic, flame-retardant composite for plastic conveyer roller of coal mine and manufacture method thereof specifically.
Ribbon conveyer is a steel with the carrying roller major part, and the price height, weight is big, reactive loss is big, the carrying roller in the used conveyer belt under coal mine especially, because damp under the coal mine, corrosion gets more piece, needs often to change carrying roller, has both taken material, when taking a lot of work again.
The object of the invention is to overcome the shortcoming in the above-mentioned technology, propose a kind of new material of making the ribbon conveyer carrying roller: antistatic, flame-retardant composite for plastic conveyer roller of coal mine and manufacture method thereof, making carrying roller with this material can weight reduction, reduce cost, can reduce noise when anticorrosive, shock resistance, wear-resistant, high-speed cruising.
The object of the invention is realized by following technical scheme: this kind is antistatic, fire-retardant, composite for plastic conveyer roller of coal mine, and its constituent is:
Form and divide name group component content umber
Polyvinyl chloride (PVC) 100
Methyl methacrylate-butadiene-8～30
Styrol copolymer (MBS)
Lead sulfate tribasic 1～10
Dibasic lead phosphite 1～8
Dioctyl phthalate (DOP) 1～8
Acrylic polymer (ACR) 1～20
Barium stearate 0.2～5
Lead stearate 0.2～5
Stearic acid 0.2～5
Triphenyl phosphite (TPP) 0.2～5
Low molecular weight polyethylene 0.1～3
Calcium carbonate 0.5～40
Metal dust 1～30
As making the plastic conveyer roller material, require it to have many advantageous properties: antistatic, fire-retardant, high strength, wear-resistant etc.Select the base-material of polyvinyl chloride as the present composition, be because polyvinyl chloride itself has many good performances: difficult combustion, wear-resisting, noise elimination, shock absorbing, good mechanical properties, characteristics such as the monomer source is wide, the goods cost is low, and can adopt multiple forming method machine-shaping.Polyvinyl chloride is a kind of multi-component material, can add plasticizing agent, stabilizing agent, additive etc. according to different purposes.Along with the consumption difference of component, polrvinyl chloride product can present different physics, mechanical property.
MBS (MBS) is to connect the amorphism thermal plasticity high polymer that the skill copolymerization obtains by butadiene-styrene elastomer and methyl methacrylate and styrene.Low temperature impact properties is better, is light yellow pellet, and the semi girder notched Izod impact strength reaches 100～150J/m, and good cold resistance is arranged, even-40 ℃ of toughness that still have; Heat resistance is better, and goods still keep enough rigidity at 85～90 ℃.With polyvinyl chloride good miscibility is arranged, as the modifier of polyvinyl chloride.Polyvinyl chloride after the modification can improve 6～15 times of impact strengths, and has improved resistance to ag(e)ing, cold resistance and processing characteristics.
Lead sulfate tribasic and dibasic lead phosphite are white powder or two kinds of products of faint yellow crisp shape body, belong to lead stabilizer, and heat resistance is good, particularly long-term thermal stability is good, has the performance of Chinese white, and hiding power is big, therefore weatherability is also good, cheap.Be suitable as very much the stabilizing agent of polyvinyl chloride.
Phthalic acid two is sad to be transparence liquid, be widely used as plasticizing agent, has good comprehensive performances, good mixing property, and the plasticizing efficiency height, volatility is low, and low-temperature pliability is better, and is heat-resisting, and weatherability is good, is widely used in the primary plasticizer of polyvinyl chloride.
Acrylic polymer adds man-hour as the modifier of polyvinyl chloride, falls after these two kinds of materials mix, and adopts mechanical blending manufactured such as kneading, extrude.Through after the blend, impact strength improves, along with the increase of acrylic polymer addition, its semi girder impact strength increases severely, even about up to 50 times.In addition, weatherability, processing and forming property improvement.
Barium stearate is white powder, and is water insoluble, can be used as the polyvinyl chloride heat-resisting stabilizing agent, and no sulphide staining is as a kind of high heat-proof sliding agent.Lead stearate also is a kind of white powder, and is water insoluble, also is as polychloroethylene heat stabilizer and sliding agent, is used for various different transparent flexibles, hard product.Stearic acid is white cured shape solid, in order to stabilizing agent, cold resistant plasticizer, surfactant, sliding agents such as production polyvinyl chloride soaps.
Triphenyl phosphite is the smelly transparency liquid of a kind of colourless little band phenol.Make chelating agent in various polrvinyl chloride products, can make goods keep its transparency, and can suppress change in color, simultaneously it can increase the antioxygen of main stabilizer and light, heat stability.
Low molecular weight polyethylene has good chemical stability, heat stability and moisture-proof, and melt viscosity is low, and is good with the compatibility of paraffin and other resin.As the additive of polyvinyl chloride, can improve its processing characteristics, and can improve slickness, glossiness and the heat stability of product surface as sliding agent.Mainly play the external lubricant effect among the present invention.
Calcium carbonate is main a kind of in the carbonate filler, and it is cheap, and it is very abundant to originate, and mainly is to be that raw material processes from strand with natural limestone.Nontoxic, the nonirritant of calcium carbonate, odorlessness, softness in addition; White, index of refraction is low, it is painted, dry to be easy to, do not contain the crystallization water, has suitable granularity; Owing to can bring into play suitable souring in process, thereby being a kind of resistive connection tablet, in the calcium carbonate energy and chlorion, is the acid acceptor in the secondary stabilization of polyvinyl chloride.Can reduce the shrinkage factor of goods in molding and cross-linking process, be stable in wide wide temperature range.
Metal packing is given plastic composite with particularity, for example can increase performances such as thermal conductivity, electric conductivity, thermal capacitance and radiation proof.Metal dusts such as the steel of many advantages, iron, copper, copper alloy, aluminium, zinc, lead all can be made the filler of plastic products.When filling a prescription, dry in advance filler, usually can improve the performance of final product.Metal and organic resin compound tense on metal and plastic interface, may form metal one organic complex, and it can play the effect of accelerator, helps the carrying out of solidifying.Its performance is changed to some extent, reduced insulating properties, improved electric conductivity, can reduce or eliminate the static of this plastic material.
In order to eliminate the static in the said composition, also can add antistatic additive, stearamide propyl-beta-hydroxyethyl-dimethyl ammonium nitrate (SN), perhaps graphite powder comprises second piece carbon black, conductive black and carbon black.When selecting graphite powder as antistatic additive for use, its content is 0.5～30 part, and when selecting antistatic additive SN for use, its content is 0.5～5 part.
Manufacture method antistatic, flame-retardant composite for plastic conveyer roller of coal mine is as follows:
(1) takes by weighing various compositions according to following ratio and divide material
Form and divide name group component content umber
Polyvinyl chloride (PVC) 100
Methyl methacrylate-butadiene-8～30
Styrol copolymer (MBS)
Lead sulfate tribasic 1～10
Dibasic lead phosphite 1～8
Dioctyl phthalate (DOP) 1～8
Acrylic polymer (ACR) 1～20
Barium stearate 0.2～5
Lead stearate 0.2～5
Stearic acid 0.2～5
Triphenyl phosphite (TPP) 0.2～5
Low molecular weight polyethylene 0.1～3
Calcium carbonate 0.5～40
Metal dust 1～30
(2) earlier with polyvinyl chloride (PVC), the metal dust that antistatic property is arranged, comprise iron powder, cupric oxide powder, aluminium powder, or the mixed-powder of two kinds or three kinds wherein, optothermal stabilizer, fire retardant and in-lubricant, lead sulfate tribasic, dibasic lead phosphite, barium stearate, lead stearate, stearic acid add the high speed kneader at normal temperatures successively, elder generation's stirring at low speed, add liquid plasticizer by side material mouth simultaneously: o-phthalic acid dibutyl ester, liquid chelating agent: triphenyl phosphite, continued stirring at low speed 1.5～2 minutes.
(3) mediate to 40 ℃ at a high speed.
(4) add calcium carbonate, continue to mediate to 80 ℃.
(5) add anti-impact modifier acrylate base polymer, external lubricant: low molecular weight polyethylene PE.
(6) continue to mediate, when physical temperature reaches 120 ℃ ± 5 ℃, transfer the high speed kneader speed of mainshaft to low speed by high speed, open the kneader discharge valve, material is arranged in the low speed cooling mixing machine that has into started in advance, when being cooled to below 40 ℃, compound is discharged, do for loose shape and mix powder.
(7) loose shape dry mixed powder is sieved, gel piece and impurity are sifted out, antistatic, fire-retardant, the composite for plastic conveyer roller of coal mine dry mixed powder that must mix.
The powder that is processed into directly can be used the powder extruder for shaping, make antistatic, fire-retardant, plastic conveyer roller of coal mine, not need powder through granulation.Use the double screw extruder extrusion molding, production procedure is short, and the raw material heated time is short, overheated decomposition of little, and product properties is good, and the following horn scraps of output is processed easily, the efficient height, cost is low.
Owing to use the double screw extruder extrusion molding, directly use powder, without granulation, so to the requirement height of powder.In the powder manufacture process, require the high speed kneader to have speed changing function, rotating speed can change in 700～1400 rev/mins of scopes, mixed on low speed is cold stir machine disperse the cooling material ability should with the capabilities match of high speed kneader, volume is more than 2 times of high speed kneader.Inventory should be controlled at 50～70% of high speed kneader capacity, can reach assigned temperature very soon, the production efficiency height.Also can pass through granulation, with the method manufacturing of injection moulding, antistatic, fire-retardant, plastic conveyer roller of coal mine.Also can produce under other coal mine plastic product under the antistatic flame resistant coal mine with this prescription and this method.
Advantage of the present invention; Conveyer carrying roller with material manufacturing of the present invention, have in light weight, cost is low, anticorrosive, shock resistance, wear-resistant, noise is low, antistatic, especially under coal mine, make the ribbon conveyer carrying roller, these advantages are very valuable, prolonged application life greatly, also can not cause discharge accident because of the spark that static forms.This material detects through test center of Shanghai Branch of coal science institute, and every index all reaches and surpasses coal industry standard promulgated by the ministries or commissions of the Central Government, and other indexs all reach and surpass the standard of national GB93009-90.Every the key technical indexes of test is as follows:
Project standard testing average
1, sheet resistance value (ohm)＜5 * 10
82.1 * 10
7
2, fire-retardant (flame is arranged) (second)＜3 1.67
Flameless combustion (second)＜20 1.94
3, life test (hour) 〉=15000 qualified
Embodiment 1.
Get 100 kilograms of polyvinyl chloride (PVC), 10 kilograms of methymethacrylate-butadiene-styrene copolymer (MBS), 4 kilograms of lead sulfate tribasics, 1 kilogram of dibasic Lead Phosphite, 1 kilogram of dioctyl phthalate (DOP), 3 kilograms of acrylate base polymers (ACR), 0.3 kilogram of barium stearate, 0.4 kilogram of stearate acid, 0.4 kilogram of triphenyl phosphite (T.P.P), 0.1 kilogram of low molecular weight polyethylene, 2 kilograms in calcium carbonate, each 1 kilogram totally 2 kilograms of basic iron powder, cupric oxide powders.
With the polyvinyl chloride that is taken out, cupric oxide, the base iron powder, lead sulfate tribasic, dibasic lead phosphite, barium stearate, lead stearate, put into the high speed kneader under the stearic acid normal temperature successively, in the time of stirring at low speed, add dioctyl phthalate from side material mouth, triphenyl phosphite, continued stirring at low speed 1.5～2 minutes, mediate at a high speed again and after 40 ℃, add calcium carbonate, continue to mediate to mediating to 80 ℃, add acrylic polymer, low molecular weight polyethylene, continue to mediate, when temperature of charge reaches 120 ℃ ± 5 ℃, with the high speed kneader speed of mainshaft by after transferring low speed at a high speed, material is arranged in the low speed cooling mixing machine that has into started in advance, discharging during cooling and mixing to 40 ℃ ± 5 ℃ is for loose shape dry mixed powder, after sieve, remove caking and foreign matter, what obtain mixing is antistatic, fire-retardant, highstrenghtpiston's carrying roller dry mixed powder of composition.
Embodiment 2.
Get 100 kilograms of polyvinyl chloride, 15 kilograms of MBSs, 6 kilograms of lead sulfate tribasics, 4 kilograms of dibasic lead phosphites, 4 kilograms of dioctyl phthalates, 7 kilograms of acrylic polymers, 1 kilogram of barium stearate, 1 kilogram of lead stearate, 1 kilogram of triphenyl phosphite, 0.6 kilogram of low molecular polyethylene, 10 kilograms in calcium carbonate, each 2 kilograms at cupric oxide powder, lead powder end, totally 4 kilograms.
Earlier with polyvinyl chloride, cupric oxide powder, aluminium powder, lead sulfate tribasic, dibasic lead phosphite, barium stearate, lead stearate, stearic acid adds the high speed kneader at normal temperatures successively, in the time of stirring at low speed, add dioctyl phthalate by side material mouth, triphenyl phosphite, continue stirring at low speed after 1.5～2 minutes, mediate at a high speed again to 40 ℃, add calcium carbonate, continue to mediate to 80 ℃, add acrylic polymer again, low molecular weight polyethylene continue to be mediated, when temperature of charge reaches 5 ℃ of 120 ℃ of scholars, transfer high speed kneader holoaxial rotating speed to low speed by high speed, open discharge valve, material is arranged in the low speed cooling mixing machine that has into started in advance, discharging when the cooling temperature is bonded to 5 ℃ of 40 ℃ of scholars, be loose shape dry mixed powder, after sieve, remove caking and foreign matter, what obtain mixing is antistatic, fire-retardant, highstrenghtpiston's carrying roller dry mixed powder of composition.
Embodiment 3.
Get 80 kilograms of polyvinyl chloride, 8 kilograms of MBSs, 4 kilograms of lead sulfate tribasics, 4 kilograms of dibasic lead phosphites, 3 kilograms of dioctyl phthalates, 5 kilograms of acrylic polymers, 1 kilogram of barium stearate, 1 kilogram of lead stearate, 1 kilogram of triphenyl phosphite, 0.5 kilogram of low molecular weight polyethylene, 10 kilograms in calcium carbonate, respectively 1 kilogram in base iron powder, cupric oxide powder, lead powder, totally 3 kilograms.
Earlier with polyvinyl chloride, the base iron powder, cupric oxide powder, aluminium powder, lead sulfate tribasic, dibasic lead phosphite, barium stearate, lead stearate, stearic acid adds the high speed kneader at normal temperatures successively, when carrying out stirring at low speed, add dioctyl phthalate by side material mouth, the phosphorous acid diphenyl ester, continuing stirring at low speed mediates at a high speed after 1.5～2 minutes to 40 ℃ again, add calcium carbonate, continue to mediate to 80 ℃, add acrylic polymer again, low molecular weight polyethylene, continue to mediate, when temperature of charge reaches 120 ℃ ± 5 ℃, the high speed kneader speed of mainshaft by transferring low speed at a high speed, is opened discharge valve, material is arranged in the low speed cooling mixing machine that has into started in advance discharging during cooling and mixing to 40 ℃.For loose shape dry mixed powder,, remove caking and foreign matter, antistatic, fire-retardant, the composite for plastic conveyer roller of coal mine dry mixed powder that obtain mixing after sieve.
Claims (4)
1, a kind of antistatic, fire-retardant, composite for plastic conveyer roller of coal mine is characterized in that its constituent is:
Form and divide name group component content umber
Polyvinyl chloride (PVC) 100
Methyl methacrylate-butadiene-8～30
Styrol copolymer (MBS)
Lead sulfate tribasic 1～10
Dibasic lead phosphite 1～8
Dioctyl phthalate (DOP) 1～8
Acrylic polymer (ACR) 1～20
Barium stearate 0.2～5
Lead stearate 0.2～5
Stearic acid 0.2～5
Triphenyl phosphite (TPP) 0.2～5
Low molecular weight polyethylene 0.1～3
Calcium carbonate 0.5～40
Metal dust 1～30
2, according to described antistatic, fire-retardant, the composite for plastic conveyer roller of coal mine of claim 1, it is characterized in that antistatic additive is except that adopting metal dust, perhaps adopt graphite powder, comprise acetylene carbon black, conductive black and carbon black, perhaps adopt stearamide propyl-beta-hydroxyethyl-dimethyl ammonium nitrate (SN), when selecting graphite powder for use, its content is 0.5～30 part, when adopting antistatic additive SN, its content is 0.5～5 part.
3, according to described antistatic, fire-retardant, the composite for plastic conveyer roller of coal mine of claim 1, it is characterized in that metal dust is basic iron powder or cupric oxide powder or aluminium powder, or the mixed-powder of two kinds or three kinds wherein.
4, a kind of manufacture method of antistatic, flame-retardant composite for plastic conveyer roller of coal mine is characterized in that according to following activities production:
(1) takes by weighing various compositions according to following ratio and divide material
Form and divide name group component content umber
Polyvinyl chloride (PVC) 100
Methyl methacrylate-butadiene-8～30
Styrol copolymer (MBS)
Lead sulfate tribasic 1～10
Dibasic lead phosphite 1～8
Dioctyl phthalate (DOP) 1～8
Acrylic polymer (ACR) 1～20
Barium stearate 0.2～5
Lead stearate 0.2～5
Stearic acid 0.2～5
Triphenyl phosphite (TPP) 0.2～5
Low molecular weight polyethylene 0.1～3
Calcium carbonate 0.5～40
Metal dust 1～30
(2) earlier with polyvinyl chloride (PVC), the metal dust of antistatic property and optothermal stabilizer, fire retardant, in-lubricant are arranged: lead sulfate tribasic, dibasic lead phosphite, barium stearate, lead stearate, stearic acid, add in the high speed kneader at normal temperatures successively, in the time of stirring at low speed, add the liquid plasticizer dioctyl phthalate by side material mouth, liquid chelating agent: triphenyl phosphite, continued stirring at low speed 1.5～2 minutes.
(3) mediate at a high speed to 40 ℃,
(4) add treated calcium carbonate earlier, continue to mediate to 80 ℃,
(5) add impact modifier acrylate base polymer, CPE, external lubricant: low molecular weight polyethylene PE,
(6) continue to mediate, when temperature of charge reaches 5 ℃ of 120 ℃ of scholars, with the high speed kneader speed of mainshaft by transferring low speed at a high speed to, open discharge valve, material is arranged in the cooling mixing machine that has into started in advance, and discharging in the time of below the cooling and mixing to 40 ℃ is loose shape dry mixed powder.
(7) sieve, remove caking and foreign matter, the mixed powder that antistatic, fire-retardant, the composite for plastic conveyer roller of coal mine that obtains mixing is done.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115855A CN1058275C (en) | 1996-06-25 | 1996-06-25 | Anti-static and flame-retardant composite for plastic conveyer roller of coal mine and its mfg. method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115855A CN1058275C (en) | 1996-06-25 | 1996-06-25 | Anti-static and flame-retardant composite for plastic conveyer roller of coal mine and its mfg. method |
Publications (2)
| Publication Number | Publication Date |
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| CN1148133A true CN1148133A (en) | 1997-04-23 |
| CN1058275C CN1058275C (en) | 2000-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96115855A Expired - Fee Related CN1058275C (en) | 1996-06-25 | 1996-06-25 | Anti-static and flame-retardant composite for plastic conveyer roller of coal mine and its mfg. method |
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| CN (1) | CN1058275C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001081211A1 (en) * | 2000-04-22 | 2001-11-01 | Rag Aktiengesellschaft | Scraper chain conveyor for use in underground mining |
| CN1318496C (en) * | 2005-06-09 | 2007-05-30 | 石守汉 | Composite for mfg. roller and method for mfg. roller |
| CN101846217A (en) * | 2010-06-18 | 2010-09-29 | 李大伟 | Anti-static inflaming-retarding PVC firedamp drainage tube stock for mine and preparation method |
| CN102009906A (en) * | 2010-12-01 | 2011-04-13 | 中实洛阳工程塑料有限公司 | Nylon ground roll and preparation method |
| EA016586B1 (en) * | 2009-05-15 | 2012-06-29 | Виталий Богуславович Казмирчук | Roller for test desk and method for applying coating thereon |
| CN103131093A (en) * | 2011-11-28 | 2013-06-05 | 江苏双宝科技有限公司 | Processing method of mixing chlorinated polyethylene and resin |
| CN103275441A (en) * | 2013-06-24 | 2013-09-04 | 胡大为 | High-strength high-abrasion-proof polyvinyl chloride nanocomposite for manufacturing roller |
| CN103739985A (en) * | 2013-12-09 | 2014-04-23 | 吴江市董鑫塑料包装厂 | PVC decorative plate |
| CN104072916A (en) * | 2014-07-17 | 2014-10-01 | 应璐 | PVC neutron shielding material and preparation method thereof |
| CN105237926A (en) * | 2015-08-18 | 2016-01-13 | 苏州国泰科技发展有限公司 | Rubber material for automobile transmission belt and preparation method therefor |
| CN114381058A (en) * | 2021-11-30 | 2022-04-22 | 神华科技发展有限责任公司 | Composition for preparing carrier roller body and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030597A (en) * | 1987-07-11 | 1989-01-25 | 广州市消防科学技术研究所 | Flame-retardant plastic composition and the goods made from said composition |
| IE920241A1 (en) * | 1991-08-23 | 1993-02-24 | Hitachi Cable | Non-halogenated fire retardant resin composition and wires¹and cables coated therewith |
| CN1025961C (en) * | 1993-06-25 | 1994-09-21 | 生寿斋 | Antistatic flame-retardant composition and preparation method thereof |
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1996
- 1996-06-25 CN CN96115855A patent/CN1058275C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001081211A1 (en) * | 2000-04-22 | 2001-11-01 | Rag Aktiengesellschaft | Scraper chain conveyor for use in underground mining |
| CN1318496C (en) * | 2005-06-09 | 2007-05-30 | 石守汉 | Composite for mfg. roller and method for mfg. roller |
| EA016586B1 (en) * | 2009-05-15 | 2012-06-29 | Виталий Богуславович Казмирчук | Roller for test desk and method for applying coating thereon |
| CN101846217A (en) * | 2010-06-18 | 2010-09-29 | 李大伟 | Anti-static inflaming-retarding PVC firedamp drainage tube stock for mine and preparation method |
| CN101846217B (en) * | 2010-06-18 | 2011-11-02 | 李大伟 | Anti-static inflaming-retarding PVC firedamp drainage tube stock for mine and preparation method |
| CN102009906B (en) * | 2010-12-01 | 2014-02-26 | 中实洛阳工程塑料有限公司 | Nylon ground roll and preparation method |
| CN102009906A (en) * | 2010-12-01 | 2011-04-13 | 中实洛阳工程塑料有限公司 | Nylon ground roll and preparation method |
| CN103131093A (en) * | 2011-11-28 | 2013-06-05 | 江苏双宝科技有限公司 | Processing method of mixing chlorinated polyethylene and resin |
| CN103275441A (en) * | 2013-06-24 | 2013-09-04 | 胡大为 | High-strength high-abrasion-proof polyvinyl chloride nanocomposite for manufacturing roller |
| CN103275441B (en) * | 2013-06-24 | 2015-11-25 | 胡大为 | A kind of high-strength, high-anti-friction the development of PVC nanocomposites for the manufacture of carrying roller |
| CN103739985A (en) * | 2013-12-09 | 2014-04-23 | 吴江市董鑫塑料包装厂 | PVC decorative plate |
| CN104072916A (en) * | 2014-07-17 | 2014-10-01 | 应璐 | PVC neutron shielding material and preparation method thereof |
| CN104072916B (en) * | 2014-07-17 | 2016-03-02 | 应璐 | A kind of PVC neutron shielding material and preparation method thereof |
| CN105237926A (en) * | 2015-08-18 | 2016-01-13 | 苏州国泰科技发展有限公司 | Rubber material for automobile transmission belt and preparation method therefor |
| CN114381058A (en) * | 2021-11-30 | 2022-04-22 | 神华科技发展有限责任公司 | Composition for preparing carrier roller body and preparation method and application thereof |
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