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Microwave vulcanized butyronitrile/polyvinyl chloride rubber compound

A technology of polyvinyl chloride rubber and nitrile rubber, which is applied in the field of rubber technical formula, can solve the problems that cannot satisfy the production of light-colored products, and achieve the effects of performance improvement, cost reduction and production efficiency improvement

Inactive Publication Date: 2018-12-11
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At the same time, the formulations of the above two patents must contain carbon black, which cannot satisfy the production of light-colored products.

Method used

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  • Microwave vulcanized butyronitrile/polyvinyl chloride rubber compound
  • Microwave vulcanized butyronitrile/polyvinyl chloride rubber compound
  • Microwave vulcanized butyronitrile/polyvinyl chloride rubber compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 100 parts by mass of NBR / PVC alloy glue; 6 parts by mass of zinc oxide; 1.5 parts by mass of stearic acid; 30 parts by mass of quick extruded carbon black N55030 parts by mass; 30 parts by mass of pottery clay; 8 parts by mass of coumarone resin; 8 parts by mass of palm ointment Antiaging agent RD 1.5 mass parts; Antiaging agent 4010NA 1.5 mass parts; Antiaging agent MMBI-70 2 mass parts; Microcrystalline wax 1.5 mass parts; Vulcanizing agent DM 2 mass parts; Vulcanizing agent DTDM-80 3 mass parts; Vulcanizing agent TMTD 2.5 parts by mass of -80; 1 part by mass of vulcanizing agent BZ; 25 parts by mass of CaO-80.

[0034] After the obtained mixed rubber is added to the single-screw extruder to extrude the product, it is vulcanized by one-stage microwave and two-stage hot air. The microwave power of the microwave section is 4kw, the temperature is 180°C, and the heating temperature of the hot air section is 220°C. The vulcanization time is 4min. Use a rubber product mea...

Embodiment 2

[0036] 50 parts by mass of NBR; 50 parts by mass of NBR / PVC alloy glue; 5 parts by mass of zinc oxide; 1 part by mass of stearic acid; 25 parts by mass of quick extruded carbon black N550; 20 parts by mass of clay; 10 parts by mass of coumarone resin; 10 parts by mass of palm ointment; 1.5 parts by mass of anti-aging agent RD; 1 part by mass of anti-aging agent 4010NA; 2 parts by mass of anti-aging agent MMBI-70; 2 parts by mass of microcrystalline wax; 1.5 parts by mass of vulcanizing agent DM; parts by mass; vulcanizing agent TMTD-80 2.5 parts by mass; vulcanizing agent BZ 2 parts by mass; CaO-80 20 parts by mass.

[0037] After the obtained mixed rubber is added to the single-screw extruder to extrude the product, it is vulcanized by one-stage microwave and two-stage hot air. The vulcanization time is 4.5min. The surface and cut surface of the obtained black product had no pores.

Embodiment 3

[0039] 75 parts by mass of NBR; 25 parts by mass of PVC paste resin; 6 parts by mass of zinc oxide; 2 parts by mass of stearic acid; 20 parts by mass of quick extruded carbon black N550; 5 parts by mass of white carbon black; 25 parts by mass of light calcium carbonate; 8 parts by mass of coumarone resin; 8 parts by mass of palm ointment; 1.5 parts by mass of anti-aging agent RD; 2 parts by mass of anti-aging agent 4010NA; 1.5 parts by mass of anti-aging agent MMBI-70; 1.5 parts by mass of microcrystalline wax; 3 parts by mass of vulcanizing agent DTDM-80; 2.5 parts by mass of vulcanizing agent TMTD-80; 1.5 parts by mass of vulcanizing agent DPTT-70; 25 parts by mass of CaO.

[0040] After the obtained mixed rubber is fed into the single-screw extruder to extrude the product, it is vulcanized and molded by heating with hot air. The heating temperature of the hot air is 220° C., and the vulcanization time is 4.5 minutes. The surface and cut surface of the obtained black product...

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Abstract

The invention discloses a microwave vulcanized butyronitrile / polyvinyl chloride rubber compound which is prepared from the following components in parts by weight: 100 parts of nitrile rubber / polyvinyl chloride, 4-10 parts of zinc oxide, 0.5-2 parts of stearic acid, 15-100 parts of reinforcing agent, 5-40 parts of softening agent, 1.5-12 parts of anti-aging agent, 1.5-22 parts of vulcanizing agentand 10-40 parts of moisture absorbent, wherein the moisture absorbent is CaO or CaO-80. The microwave vulcanized butyronitrile / polyvinyl chloride rubber compound disclosed by the invention meets therequirements for the production of light color products and black products and is suitable for hot air or microwave vulcanization; the acquired rubber compound is extruded with a single screw extruderand then is directly prepared into a compact rubber product through a hot air or microwave vulcanization device; the production efficiency is obviously increased and the cost is lowered.

Description

technical field [0001] The invention relates to the technical formulation field of rubber, in particular to a microwave vulcanized nitrile / polyvinyl chloride rubber composition. Background technique [0002] The solubility parameters of nitrile rubber (NBR) and polyvinyl chloride (PVC) are very close, 9.64 and 9.6 respectively, and both are polar materials, so they have good compatibility. At present, the vulcanized rubber obtained by blending NBR and PVC has become the main type of rubber used in combination with rubber and plastic. Compared with pure NBR, the ozone resistance, heat resistance, aging resistance, flame resistance, processing performance and storage stability of NBR / PVC blended rubber are significantly improved, and are widely used in oil pipes, rubber rollers, rubber rings, seals, etc. items and other fields. [0003] Usually, NBR / PVC rubber hose products are vulcanized by steam vulcanization tanks under high temperature and high pressure conditions. Compa...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L27/06C08L45/02C08L91/06C08K13/02C08K3/22C08K5/09C08K3/36C08K3/04C08J3/24C08J3/28
CPCC08J3/246C08J3/28C08J2309/02C08J2427/06C08J2445/02C08J2491/06C08K3/04C08K3/36C08K5/09C08K13/02C08K2003/2296
Inventor 苗珍珍王宗浩鲍刚张秀娥邱守添邹惠芳王亮燕王定东
Owner NANJING ORIENTLEADER TECH CO LTD
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