焦烧

结果表明，在EPDM用量不超过30份时，随着EPDM用量的增大，IIR/EPDM并用胶的加工性能、焦烧时间和硫化速度变化不大；

The results showed that the processibility , scorch time and curing rate changed little as the addition level of EPDM increased up to30 phr ;

结果表明，绢云母粉活化后对胶料的老化性能、疲劳性能、半成品粘合强度、H抽出力等性能有所改善，但焦烧时间和正硫化时间缩短；

The results showed that the aging properties and fatigue properties of compounds and the adhesion strength and H pull out force of semi products improved , and the scorch time and optimum cure time reduced by adding activated silk mica powder ;

EBR的焦烧时间低于BR和IIR，但硫化速度要高于BR和IIR。

The mixing property of EBR is not as good as BR and IIR , but vulcanizing speed is better than BR and IIR .

表面活性剂单独使用或与ZnO、MgO并用均可硫化氟丁橡胶CR-1211，且能明显延长混炼胶的门尼焦烧，改善橡胶的加工性，提高硫化胶的物理机械性能。

Cationic surfactants could vulcanize CR - 1211 either alone or together with ZnO and MgO , with much better scorch resistance and processability , as well as better mechanical properties of vulcanizate .

实验结果表明，上述各制品胶料与NR／BR共混胶制品胶料相比，前者在焦烧性能、工艺性能以及化学纤维粘附强度等方面均优于后者。

The results showed that above non-tire items using NR / BR / SBR blends had better scorching , processability and fiber adhesion strength than those of using NR / BR blends .

试验结果表明，分散型加工助剂T4可促进炭黑在胶料中的分散，提高胶料的加工性能，改善胶料的物理性能，但会缩短胶料的焦烧时间。

The test results showed that the dispersion of the carbon black , the processibility and physical properties improved , but the scorch time reduced when the dispersive processing aid was added into the compound .

试验结果表明，含TPI的胶料具有良好的包辊性和毛细管流变性；硫化诱导期和焦烧时间稍有延长，这更有利于安全加工。

The results showed that the TPI containing compound featured the good banding charateristics and capillary rheology , and the extended curing induction period and scorch time which were beneficial to safe process ;

在胎体胶配方中以1份促进剂TBSI替代125份促进剂DZ，胶料的焦烧时间延长，t90缩短，硫化胶的拉断永久变形减小，H抽出力相当。

And the scorch time extended , t_ ( 90 ) reduced , the permanent tensile set decreased and the H pull-out changed little using 1 phr of TBSI instead of 1.25 phr of DCBS in the carcass compound .

结果表明，与TESPT相比，加入NXT的胶料具有较好的抗焦烧性能和耐热老化性能，两者硫化胶的动态力学性能相当；

The results showed that NXT gave silica-filled NR compound better scorch safety and heat aging resistance , and gave similar dynamic mechanical properties to vulcanizate ;

当少量硫黄与DTDM并用时，胶料的硫化速度加快、焦烧时间缩短，但对力学性能有所损害；

While little sulfur was added to the curing system of DTDM , the mixture cured faster , had shorter pre vulcanization time and worse properties .

结果表明：单独使用DTDM作硫化剂时，胶料的硫化速度慢、焦烧时间长、力学性能尚好；

The results showed that the compound based on EPDM had lower curing rate , longer pre vulcanization time and better mechanical properties when DTDM was used without sulfur .

BPP用量增大，焦烧时间缩短，转矩不变，正硫化时间缩短，压缩永久变形增大，对硬度、伸长率、拉伸强度和撕裂强度的影响轻微。

The increase of BPP will result in shorten time of burning , steady torque , decrease of positive sulfuration time , increase of compression set , and slight impacts on hardness , EL , TS and tear strength .

结果表明，LNR可有效地降低NR胶料的门尼粘度和混炼功耗，延长NR胶料的焦烧时间；可使炭黑在橡胶中分布均匀，其挤出物表面光洁度和尺寸稳定性较好。

The results showed that the Mooney viscosity of NR compound and the energy consumption in mixing decreased , the scorch time of NR compound increased , the carbon black dispersion in compound , the surface smooth and the dimensional stability of extrudate improved by using LNR .

产品的物理机械性能和加工性能优异，特别是胶料具有焦烧时间长，硫化速度快，硫化胶的磨耗（仅为TXD凝聚剂工艺的27.6%）和热老化性优良等特点。

The rubber product had excellent recessing and physical properties , especially , the compound stock possessed the characteristics of longer time to scorch and faster vulcanizing velocity , and the vulcanizates had higher wearability and resistance to thermal aging .

试验结果表明，用5份大比表面积活性氧化锌替代8份普通氧化锌，胶料的门尼粘度略有下降，焦烧时间和t10稍有延长，t90缩短；

The results of test compound using 5 phr of active zinc oxide with large specific surface instead of 8 phr of conventional zinc oxide showed that the Mooney viscosity decreased a little , the scorch time and t 10 increased a little , t 90 reduced ;

TESPT（50%）用于含白炭黑的胎冠胶时受加料顺序的影响较小，采用后加偶联剂的方式焦烧时间延长17%；

The addition order had less effect on the mix properties when TESPT ( 50 % ) was used in the silica crown compound , and the scorch time increased by 17 % when the coupling agent was added in the final mixing stage ;

尼龙护套线表面焦烧原因分析及对策

Analysis of Surface Scorch of Nylon Sheathed Wire and Counter-Measures

结果表明，聚丁二烯橡胶的焦烧安全性较好；

The results showed that the scorch safety of polybutadiene rubbers was good ;

加入国产辛基酚醛增粘树脂的胶料焦烧时间延长；

The scorch time of rubber compound with domestic octyl phenolic resin extended ;

橡胶在混炼条件下的焦烧特性

Scorch safety of rubber compound during internal mixing

原材料可以是焦烧胶、硫化流失胶边和不合格的硫化制品。

The material can be scorched rubber , flash overflow and unacceptable vulcanized product .

混炼橡胶焦烧时间的研究

Study on Scorch Life of Mixed Stock

微波脱硫橡胶的再硫化历程显示了另一个突出的特点即焦烧时间很短，甚至没有焦烧期。

In addition , the revulcanization process of microwave devulcanized rubber featured very short or even no scorch time .

炭黑中水分质量分数超出一定范围时，影响胶料的焦烧时间及硫化速度。

In order to improve the sulfuration speed of EPDM sizing material , mass accelerants are required to add .

采用复合助剂A作改性剂来改善阻尼橡胶的焦烧性能和溶解性能。

The compounding agent A is used as modification agent to improve the scorching and solubility property of damping rubber .

对胶料焦烧和硫化胶的性能以及热老化的影响也是不相同的。

And they also have different effects on scorch of the compound , the property and age of the vulcanizate .

结果发现：一羟基或羧基化合物能提高氟橡胶混炼胶的防焦烧性，并对压缩永久变形和拉伸强度等有一定的改善。

The results showed that the compound could improve the scorch safety , the compression set and the tensile strength of fluororubber compound .

结果表明，试验温度对胶料的门尼粘度、门尼焦烧时间和硫化特性均有一定影响。

The results showed that the test temperature had certain influence on the Mooney viscosity , Mooney scorch time and curing behavior of rubber compound ;

硫化温度的提高会缩短焦烧时间和正硫化时间，但有使交联密度下降的趋势。

With the increasing of cure temperature , the scorch time and optimum cure time decreased , but the crosslink density had a tread of decreasing .

结果表明，白炭黑能加速CR/TPI并用胶的焦烧性能，同时降低了胶料的硫化速度。

The results show that with the increase of the amount of silica , the scorching time and optimum cure time of CR / TPI compounds are shortened .