1) raw rubber
生胶
1.
A raw rubber for millable polyether polyurethane elastomer was prepared.
研制了一种新型的聚醚型聚氨酯生胶。
2.
The properties of the raw rubbers , compounded rubbers and vulcanized rubbers of the rare earth catalyzed polybutadiene (Ln-BR) blended with the natural rubber (NR) at different ratios were studied , and were compared with those of nickel catalyzed polybutadiene (Ni-BR) blended with NR .
研究了稀土顺丁橡胶(Ln—BR)与天然橡胶(NR)以不同比例共混后生胶、混炼胶和硫化胶的性能,并与相同条件下的镍系顺丁橡胶(Ni-BR)/NR共混胶的性能进行了对比。
3.
The stress relaxation characteristics of four kinds of raw rubber,such as star-shaped solution-polymerized styrene-butadiene rubber(S-SSBR),SSBR 2305 with coupling degree of 40%,emulsion styrene-butadiene rubber(ESBR) and cis-1,4-polybutadiene rubber(BR),and their compounds were studied,and the stress relaxation mechanism was analyzed.
研究了4种胎面用胶[星形全偶联溶聚丁苯橡胶(S-SSBR)、偶联度为40%的SSBR 2305、乳聚丁苯橡胶(ESBR),顺丁橡胶(BR)]生胶及其混炼胶的应力弛豫特性,分析了弛豫机理,考察了混炼胶的应力弛豫和挤出膨胀性能间的关系。
2) crude rubber
生胶
1.
Rheological properties of ECO crude rubber,ECO gross rubber,NBR crude rubber and NBR gross rubber in various temperature were studied.
研究了氯醚橡胶(ECO)、NBR生胶及其混炼胶在不同温度和较宽剪切速率下的流变性能。
3) mechanical goods reclaim
杂胶再生胶
4) reclaimed rubber
再生胶
1.
Preparation of polyvinylchloride/reclaimed rubber/vulcanizedrubber powder blended thermoplastic elastomer;
动态硫化聚氯乙烯/再生胶/硫化胶粉共混型热塑性弹性体的研制
2.
Analyzed the present status and development trend of reclaimed rubber industry domestic and abroad, and put forward the development idea.
分析国内外再生胶行业的现状与发展趋势,对我国废旧橡胶综合开发利用提出发展思路、措施和建议。
3.
The influence of the amount of devulcanizing agent and compounding ingredients, reclaiming time and reclaiming temperature on the performance of reclaimed rubber was discussed in detail.
用自制的De link再生剂对废旧胎面胶的再生工艺进行实验研究 ,分析再生剂和配合剂的用量及再生时间和再生温度对再生胶性能的影响 。
5) Bio-gel
生物凝胶
1.
pH-dependent swelling properties of hydrophilic bio-gel with polysaccharide;
pH对含天然多聚糖基生物凝胶膨胀特性的影响
6) reclaimed IIR
IIR再生胶
1.
The application of filler Austin Black and reclaimed IIR in inner liner compound of TBR tire was investigated.
试验研究填充剂Austin Black和IIR再生胶在全钢载重子午线轮胎气密层中的应用效果。
补充资料:生胶
天然橡胶是由栽培的橡胶树上割取的胶乳,经稀释、过滤、凝固、滚压、干燥等步骤加工而得的弹性固体。是以异戊二烯为主要成分的不饱和状态的天然高分子化合物、其结构式见图。n约为10000左右,分子量分布在10-180万之间,平均分子量70万左右。实际上天然橡胶是多种不同分子量的聚异戊二烯的混合体。橡胶烃含量约91%-94%,其余为少量的蛋白质、脂肪酸、糖分、灰分等,不含杂质的然橡胶透明而略带黄色。相对密度(20 ℃/4℃)0.93,Tg=-70 ℃。加热到130-140 ℃完全软化,200 ℃左右开始分解,270 ℃则急剧分解。折射率1. 5195,溶解度参数δ=7.9-8.1。溶于苯、甲苯、二甲苯、溶剂汽油、二硫化碳、四氮化碳、氯仿、松节油等。不溶于乙醇和丙酮。天然橡胶具有很好的弹性,伸长率大(1000%)、机械强度较高,门尼粘度较高,自粘性好,耐透气性较好,耐碱,不耐浓强酸。耐油、耐溶剂性差,耐老化性不佳。
天然橡胶贮存时可发生粘度和硬度增加的贮存硬化现象,低温易结晶,应贮存于阴凉、通风、温度为10-30 ℃的库房内,防止日晒,不可重压,贮存期1年。
天然橡胶贮存时可发生粘度和硬度增加的贮存硬化现象,低温易结晶,应贮存于阴凉、通风、温度为10-30 ℃的库房内,防止日晒,不可重压,贮存期1年。
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