the results showed that density and hardness of nr foams decreased with increasing amount of blowing agent h.

结果表明，随着发泡剂h用量的增加，nr发泡材料的密度与硬度均降低；

obsh is a recently developed blowing agent of rubber and plastics in our country.

obsh是国内近年来开发的橡塑发泡剂。

obsh is a recently developed blowing agent of rubber and plastics in our country. an outline of its synthetic route, characteristics in use and modifying methods was given.

obsh是国内近年来开发的橡塑发泡剂。本文概要介绍了它的合成路线、应用特色及改性方法。

there must be a question about choice of blowing agent for environment especially in terms of global warming issue.

在选择发泡剂时必须考虑的一个问题即环境因素特别是温室效应。

this paper studied the influence of blowing agent dosage on the main reactant of puf , and the chemorheology in reaction process.

研究了发泡剂用量对聚氨酯泡沫主反应原料粘度的影响，以及反应过程中的化学流变性能。

two components of the polyether polyurethane systems with water as blowing agent are prepared.

制得了以水作发泡剂的聚醚型聚氨酯鞋底原液。

it was found that the first blowing time of the rubber compounds decreased, and the compress strain and the elongation of the sponge increased with the contents of blowing agent ak increased.

实验结果表明，随着发泡剂用量的增加，混炼胶初始发泡时间缩短，制得的海绵材料的压缩应变和伸长率增加。

another research for us to pursue is what to be selected as 「green」 blowing agent and how to practice it.

另一个需要从事的研究是选择何种「绿色」发泡剂，以及如何实践它。

the method can be extended to analyze other additives in ac blowing agent system whose various standard spectra are absent.

这种鑒定方法同样适用于ac中其他无标準图谱的改性剂分析。

blowing agent is a foaming agent, and stabilize the foam, lashing water additives, such as a general term (composite foaming agent that contains more than several auxiliaries).

发泡剂是起泡剂，稳泡剂，缚水剂等助剂的总称（复合发泡剂包含以上几种助剂）。

the influence of contents of blowing agent ak on the curing rate, blowing rate of silicone rubber were discussed.

研究了发泡剂ak用量对硅橡胶硫化速率和发泡速率的影响。

the viscosity of pvc decreases and the liquidity increases with the addition of the ac blowing agent increasing. the viscosity will increase when the addition is more than 0.8 phr.

随ac复合发泡剂用量增加，物料粘度下降，流动性提高，用量超过0.8份时，物料的粘度会提高；

the effects of frequency, power, action period and stirring velocity of ultrasound on the size of blowing agent adc are experimentally investigated.

考察了超声频率、功率，超声时间和搅拌速度对产品粒度的影响。

in table 5, the impact is calculated as co2 amount if the blowing agent in the foam for the refrigerator is completely released to the air.

在表5中，如果冰箱泡沫中所有的发泡剂都释放至空气中，那么其影响可以用二氧化碳的量来计算。

the blowing and vulcanizing characteristics of moulded epdm foam with blowing agent h, and the effect of the formulation and processing technology on the foam properties were investigated.

研究了发泡剂h在epdm模压发泡材料中的发泡特性、硫化特性以及两者之间的匹配关系对发泡效果的影响，同时还考察了配方和工艺因素对发泡体性能的影响。

pentane combines advantageous physical and technical properties with good environmental data. as a blowing agent for polyurethane rigid foams, it is suitable for china market.

戊烷作为发泡剂具有良好的物理和工艺性能及合适的环境数据，适合于我国聚氨酯泡沫市场。

the research results showed that the blowing agent escaping, the pressure stabilization and increase should be done when the twin-screw extruder was used.

目前的研究表明：采用双螺桿挤出机进行挤出发泡时需要考虑发泡剂逃逸和压力的升高与稳定；

blowing agent ak was used to preparing silicone rubber sponge.

采用发泡剂ak制作了硅橡胶海绵。

the density of foam decreased and its porosity increased as the blowing agent level in the foam increased.

采用溶析成孔技术制备的硅橡胶泡沫材料，随着成孔剂用量增大，其密度减小，孔隙度提高。