CN107663309A - A kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch - Google Patents

Abstract

The invention discloses a kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch, calculate in parts by weight, including butadiene-styrene rubber 90, nitrile rubber 10, sulphur 2, captax 0.4 0.6, diphenylguanidine 0.1 0.3, altax 0.9 1.1, Vulcanization accelerator TMTD 0.1 0.2, zinc oxide 5, stearic acid 1, antioxidant A 0.8 1.2, antioxidant D 0.8 1.2, calcium carbonate 65, clay 15, liquid coumarone 10, dibutyl ester 25, carbon black 20, antiscorching agent YG 1 0.2 0.4.Rubber and fluid medium solubility parameter great disparity, have preferable oil resistivity；Filler loading suitably increases, and contributes to anti-swelling；State of cure (vulcanization) improves, and crosslink density is high, and oil-resistant effect is preferable.With the big primer of formula production, its oil resistance is preferable, and cost is relatively low, adapts to contact the operating environment of oils, and suitable for the protection of oil operations, and process is not susceptible to incipient scorch phenomenon, can greatly improve the security of sizing material processing.

Description

A kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch

Technical field

The present invention relates to rubber overshoes manufacturing field, is related to the big primer formula of footwear, more particularly to a kind of injection pressure for being not easy incipient scorch The big primer of method oil-resistant shoe.

Background technology

Shoes made of General Purpose Rubber material, its big primer are usually that natural rubber adds synthetic rubber, use range is wide, Cost is low, but because natural rubber and fluid medium solubility parameter are not greatly different enough, causes big primer oil resistivity poor, therefore, Conventional big primer formula can not be used for the protection boots for contacting oils.

Incipient scorch is a kind of sizing material prevulcanization phenomenon, produce incipient scorch the reason for have：Mismate, such as vulcanizing agent, accelerator Dosage is too many；Misoperation, as roller temperature is too high, too early add Sulfur or add vulcanizing agent after mixing time it is oversize.It is kneaded uneven Cause vulcanizing agent and accelerator concentration of local；It is improper that sizing material cooling is parked.Such as park too long, holding area temperature is too high or air Circulation etc., when there is incipient scorch phenomenon, sizing material is rough, and pitted skin plasticity reduces, and size occurs in sizing material surface when serious The particle not waited.

Because summer temperature is higher, easily causes oil-resistant shoe and incipient scorch phenomenon occurs when being kneaded and machining with big primer, make Scrapped into sizing material.

The content of the invention

The purpose of the present invention is in view of the shortcomings of the prior art, and to provide a kind of injection molding oil-resistant shoe for being not easy incipient scorch with big Primer, with the big primer of formula production, its oil resistance is preferable, and cost is relatively low, adapts to the operating environment of oil resistant, is applied to The protection of oil resistant operation, and process is not susceptible to incipient scorch phenomenon, can greatly improve the security of sizing material processing.

Realizing the technical scheme of the object of the invention is：

A kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch, is calculated in parts by weight, including

Butadiene-styrene rubber 90, nitrile rubber 10, sulphur 2, captax 0.4-0.6, diphenylguanidine 0.1-0.3, altax 0.9- 1.1st, Vulcanization accelerator TMTD 0.1-0.2, zinc oxide 5, stearic acid 1, antioxidant A 0.8-1.2, antioxidant D 0.8-1.2, calcium carbonate 65th, clay 15, liquid coumarone 10, dibutyl ester 25, carbon black 20, antiscorching agent YG-1 0.2-0.4.

The advantage of the invention is that：Using butylbenzene, nitrile rubber, rubber and fluid medium solubility parameter great disparity, have Preferable oil resistivity；Softening agent is based on dibutyl ester, and with part coumarone；Filler calcium carbonate, clay dosage suitably increase, Contribute to anti-swelling；State of cure (vulcanization) improves, and crosslink density is high, and oil-resistant effect is preferable.With its oil resistant of the big primer of formula production Better performances, cost is relatively low, adapts to contact the operating environment of oils, suitable for the protection of oil operations.Gum base ingredients use Antiscorching agent YG-1 prevents the generation of incipient scorch phenomenon, and the oil-resistant shoe produced with the formula with big primer is not susceptible to incipient scorch phenomenon, The security of sizing material processing can be greatly improved.Avoid the loss of the sizing material incipient scorch caused by temperature rise, roller temperature are too high.

Embodiment

Present invention is further elaborated below by embodiment, but is not limitation of the invention.

A kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch, is calculated in parts by weight, including

Butadiene-styrene rubber 90, nitrile rubber 10, sulphur 2, captax 0.4-0.6, diphenylguanidine 0.1-0.3, altax 0.9- 1.1st, Vulcanization accelerator TMTD 0.1-0.2, zinc oxide 5, stearic acid 1, antioxidant A 0.8-1.2, antioxidant D 0.8-1.2, calcium carbonate 65th, clay 15, liquid coumarone 10, dibutyl ester 25, carbon black 20, antiscorching agent YG-1 0.2-0.4.

Embodiment：

A kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch, is calculated in parts by weight, including

Butadiene-styrene rubber 90, nitrile rubber 10, sulphur 2, captax 0.5, diphenylguanidine 0.2, altax 1.0, accelerator TMTD 0.15, zinc oxide 5, stearic acid 1, antioxidant A 0.9, antioxidant D 0.9, calcium carbonate 65, clay 15, liquid coumarone 10th, dibutyl ester 25, carbon black 20, antiscorching agent YG-1 0.3.

Preparation method：

The rubber of formula ratio is added in banbury and is kneaded completely, stearic acid, carbon black, accelerator is then added and is mixed in mill Refining is complete, and age resistor, plasticizer, filler, the antiscorching agent for adding formula ratio continue to be kneaded completely, are eventually adding sulphur mixing Completely.

Claims (2)

1. a kind of big primer of injection molding oil-resistant shoe for being not easy incipient scorch, is calculated in parts by weight, including

Butadiene-styrene rubber 90, nitrile rubber 10, sulphur 2, captax 0.4-0.6, diphenylguanidine 0.1-0.3, altax 0.9- 1.1st, Vulcanization accelerator TMTD 0.1-0.2, zinc oxide 5, stearic acid 1, antioxidant A 0.8-1.2, antioxidant D 0.8-1.2, calcium carbonate 65th, clay 15, liquid coumarone 10, dibutyl ester 25, carbon black 20, antiscorching agent YG-1 0.2-0.4.

2. the big primer of the injection molding oil-resistant shoe according to claim 1 for being not easy incipient scorch, it is characterised in that according to weight Part calculates, including

Butadiene-styrene rubber 90, nitrile rubber 10, sulphur 2, captax 0.5, diphenylguanidine 0.2, altax 1.0, accelerator TMTD 0.15, zinc oxide 5, stearic acid 1, antioxidant A 0.9, antioxidant D 0.9, calcium carbonate 65, clay 15, liquid coumarone 10th, dibutyl ester 25, carbon black 20, antiscorching agent YG-1 0.3.