CN102924766A

CN102924766A - Mixed rubber for manufacturing rubber

Info

Publication number: CN102924766A
Application number: CN 201210485551
Authority: CN
Inventors: 武献成; 武献忠
Original assignee: SHANDONG ZHONGCHENG RUBBER CO Ltd
Current assignee: SHANDONG ZHONGCHENG RUBBER CO Ltd
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-02-13

Abstract

The invention belongs to the technical field of rubber manufacturing, and particularly relates to mixed rubber for manufacturing a rubber material for protecting the safety of berthing in a harbour or a dock. The mixed rubber is characterized by comprising the raw materials in by weight ratio: 10-40% of natural rubber, 5-30% of synthetic rubber, 1-5% of zinc oxide, 0.5-3% of sulphur, 0.3-3% of accelerant CZ, 0.5-4% of stearic acid, 10-30% of white carbon black, 5-8% of engine oil, 0.5-5% of coumarone, 0.1-2% of antiager BLE, 1-20% of polyvinyl chloride, 0.1-1% of paraffin, and 0.05-0.5% of scorch retarder CTP. The mixed rubber disclosed by the invention has the beneficial effects that the comprehensive performances such as the strength and the elasticity of the finished product are improved; and moreover, the finished product is easy to process and produce, the wear resistance of vulcanized rubber is enhanced, the tear strength of the vulcanized rubber is improved, the processing property is good, and the energy consumption and the production cost are reduced.

Description

Rubber unvulcanizate for the manufacture of rubber

Technical field

The invention belongs to rubber manufacturing technology field, related in particular to a kind of rubber unvulcanizate that leans on the elastomeric material of ship safety for the manufacture of harbour, harbour protection.

Background technology

At present for the manufacture of the rubber unvulcanizate of rubber fender material mainly take rubber as raw material, and add some other rubber ingredients and form through mixing, therefore, during using, the goods of this kind rubber unvulcanizate after sulfuration have preferably elasticity, but also have some shortcomings in mixed refining process, product molding, off-type, sulfuration and goods use procedure: rubber content is large, the mixed refining process difficulty, the frequent overburden operation of equipment, big energy-consuming; The prices of raw and semifnished materials are expensive, cost is high; Glue moulding little caused certain difficulty to production technique; And produced finished product appearance is coarse, and hardness is not good.

Summary of the invention

The objective of the invention is the defective for above-mentioned prior art, a kind of rubber unvulcanizate for the manufacture of rubber of superior performance is provided.

Concrete technical scheme of the present invention: a kind of rubber unvulcanizate for the manufacture of rubber is characterized in that: the raw material that comprises following weight ratio: natural rubber 10-40%, synthetic rubber 5-30%, zinc oxide 1-5%, sulphur 0.5-3%, accelerant CZ 0.3-3%, stearic acid 0.5-4%, white carbon black 10-30%, machine oil 5-8%, coumarone 0.5-5%, antioxidant BLE 0.1-2%, polyvinyl chloride 1-20%, paraffin 0.1-1%, anti-scorching agent CTP 0.05-0.5%.

The invention has the beneficial effects as follows:

Increased the over-all propertieies such as intensity, elasticity of finished product, and easily processing, improved the wear resistance of cross-linked rubber, improved its tear strength, processing performance is good, has reduced energy consumption and production cost.

Embodiment

A kind of rubber unvulcanizate for the manufacture of rubber comprises the raw material of following weight ratio: natural rubber 30%, synthetic rubber 15%, zinc oxide 4%, sulphur 1.6%, accelerant CZ 0.5%, stearic acid 1.2%, white carbon black 25%, machine oil 5%, coumarone 2%, antioxidant BLE 0.5%, polyvinyl chloride 10%, paraffin 5%, anti-scorching agent CTP 0.2%.

At first with natural rubber, synthetic rubber (styrene-butadiene rubber(SBR)) and polyvinyl chloride mixing 3min on Banbury mixer, add white carbon black and the mixing 3min of zinc oxide, add the mixing 2min of machine oil, add stearic acid, coumarone, antioxidant BLE (acetone and pentanoic high-temperature reaction product), the mixing 2min of paraffin and anti-scorching agent CTP (N-cyclohexylthiophthalimide), as for 60 ℃ of preliminary rollers, rear roller is the 4min that dispels the heat on 55 ℃ the opening rubber mixing machine, then adds sulphur, the mixing 4min of accelerant CZ (N cyclohexyl 2 benzothiazole sulfenamide) forms.

Claims

1. the rubber unvulcanizate for the manufacture of rubber is characterized in that: the raw material that comprises following weight ratio: natural rubber 10-40%, synthetic rubber 5-30%, zinc oxide 1-5%, sulphur 0.5-3%, accelerant CZ 0.3-3%, stearic acid 0.5-4%, white carbon black 10-30%, machine oil 5-8%, coumarone 0.5-5%, antioxidant BLE 0.1-2%, polyvinyl chloride 1-20%, paraffin 0.1-1%, anti-scorching agent CTP 0.05-0.5%.