推薦產(chǎn)品
3-(4-chlorophenyl)-4-phenyl-4,5-dihydro-1H-pyrazole 2-(chloromethyl)-3-methylpyridinehydrochloride 1-(2-bromo-4-methylphenyl)ethanone 3-chloroisoquinoline-4-carbonitrile 5,8-dichloropyrido[3,2-d]pyridazine 2-bromomalononitrile 2-(4-(bromomethyl)phenyl)benzo[d]thiazole 1-(bromomethyl)-3-methoxy-2-nitrobenzene 6-bromo-1H-[1,2,3]triazolo[4,5-b]pyridine 4-iodo-2-((trimethylsilyloxy)methyl)thiazole 6-iodoimidazo[1,2-a]pyridine-3-carbonitrile 2-(4-chlorophenyl)-2-morpholinoacetonitrile 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 4-chloroisothiazole 5-bromo-6-chloro-1H-indole 7-chloro-3H-imidazo[4,5-b]pyridine ethyl3-(4-formylphenyl)propanoate 2,3-dibromobenzaldehyde 1-(5H-chromeno[2,3-b]pyridin-7-yl)ethanone 5H-chromeno[2,3-b]pyridin-5-one 3-chloroisoquinoline-4-carbaldehyde (E)-2-(3-oxoprop-1-enyl)benzaldehyde methyl4-formyl-3-nitrobenzoate 5,6-dimethoxy-2,2-dimethyl-2,3-dihydro-1H-inden-1-one 1-methylbicyclo[4.1.0]heptan-3-one 3-nitro-4-(trifluoromethoxy)benzaldehyde 2-hydroxyquinoline-6-carbaldehyde 2-nitro-3-(trifluoromethyl)benzaldehyde 1-(2-fluoro-4-methoxyphenyl)propan-2-one tert-butyl3-fluoro-4-oxopiperidine-1-carboxylate tert-butyl3-oxopropylcarbamate 2,2-dimethylcyclohexanone 9H-carbazole-3-carbaldehyde N,N-dimethyl-2-oxoacetamide 2-methylpent-4-yn-2-ol 3-tert-butyl-4-hydroxybenzonitrile 4-bromo-2-tert-butylphenol 1,3-dibutoxypropan-2-ol methyl4-hydroxyquinoline-6-carboxylate methyl3-cyano-4-hydroxybenzoate 4-chloro-6-methoxyquinolin-7-ol 3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol 2-(2-aminothiazol-5-yl)ethanolhydrochloride (R)-ethyl2-chloropropanoate (S)-4-amino-5-(4,4-dimethylcyclohexylamino)-5-oxopentanoicacid (1s,4s)-4-hydroxycyclohexanecarboxylicacid (S)-2-(tetrahydrofuran-3-yloxy)aceticacid (1S,4R)-1-methyl-4-(prop-1-en-2-yl)cyclohex-2-enol (R)-4-(hydroxymethyl)oxazolidin-2-one (S)-4-(hydroxymethyl)oxazolidin-2-one 化工資訊 我國的絕熱材料市場起步較晚，特別是有機類的絕熱材料市場開發(fā)更是滯后。近十年來，國家積極倡導發(fā)展節(jié)能建筑，降低能源消耗，使得膨脹聚苯板薄抹灰外墻外保溫技術得到廣泛的應用，絕熱用模塑聚苯乙烯泡沫塑料需求量不斷增加，帶動了EPS生產(chǎn)企業(yè)的快速發(fā)展。
聚苯乙烯泡沫塑料是以聚苯乙烯樹脂為主體，加入發(fā)泡劑等添加劑制成，它是目前使用最多的一種緩沖材料。我國聚苯乙烯泡沫塑料的生產(chǎn)主要集中在東北、江浙及北京、天津、河北，且其中以中小型企業(yè)為多。
當聚苯乙烯泡沫塑料板密度不足時，如果用于建筑外墻外保溫將導致其抗拉強度低，滿足不了保溫系統(tǒng)自重及飾面荷載對其抗剪強度的承載要求，容易使EPS板中部被拉斷;同時EPS板密度不足也會導致保溫性能降低、吸濕性增加，影響建筑的保溫效果，聚苯乙烯泡沫板將起不到建筑節(jié)能保溫的作用。
目前，我國EPS生產(chǎn)企業(yè)約為2000家，聚苯乙烯泡沫塑料生產(chǎn)勢頭良好，質量不斷提高。但是大型企業(yè)數(shù)量較少。據(jù)悉，表觀密度是指單位體積的泡沫塑料在規(guī)定溫度和相對濕度條件下的質量。表觀密度在一定程度上影響其它物理性能指標，并直接反應產(chǎn)品的成本。
