CN106117801A - 一种保温隔热、可除甲醛的竹塑发泡复合门窗材料及其制备方法 - Google Patents
一种保温隔热、可除甲醛的竹塑发泡复合门窗材料及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种保温隔热、可除甲醛的竹塑发泡复合门窗材料及其制备方法,其特征在于,是由以下重量份的原料制得:膨胀珍珠岩3‑5,等规聚丙烯60‑70,椰子壳粉1‑2,高熔体强度聚丙烯10‑15,竹粉30‑40,活性炭10‑15,刚玉粉1‑2,正丁胺0.2‑0.5,Cu(NO3)2 20‑25,硬脂酸1‑3,硬脂酸钙1‑3,发泡剂AC1601 1‑3,硬脂酸锌10‑15,NaOH溶液50‑60,聚丙烯酸酯乳液1‑3;本发明用聚丙烯酸酯和Cu(NO3)2对活性炭和金刚石进行改性,促进了Cu(NO3)2在活性炭和金刚石表面和孔道中的负载;配合添加的膨胀珍珠岩赋予该复合材料保温、隔热、隔音的性能。
Description
技术领域
本发明涉及一种竹塑复合材料,尤其涉及一种保温隔热、可除甲醛的竹塑发泡复合门窗材料及其制备方法。
背景技术
竹塑发泡复合材料因可以克服竹塑复合材料密度大、脆性大等缺陷,近来备受关注。竹塑复合材料的基体主要有聚氯乙烯和聚烯烃塑料。聚氯乙烯基复合材料在制造、使用及废弃处理时会对环境造成污染,聚乙烯基复合材料的刚性及最高使用温度较低,且不易降解。 因此,聚丙烯(PP)木塑发泡复合材料成为近期的研究热点。竹塑发泡复合材料应用范围很广,涉及到汽车工业及运输业,建筑行业,包装行业,家具及装修业,办公室设备及体育设备等多个方面。
周吓星在《钛酸酯偶联剂对竹塑发泡复合材料性能的影响》中,利用竹粉和聚丙烯、高熔体强度聚丙烯制备了一种竹塑发泡复合材料,但是其力学强度有待提高,并且该复合材料的功能化还不够完善,限制了竹塑发泡复合材料的应用。
发明内容
基于以上思考,本发明的目的在于提供一种竹塑发泡复合材料的配方,对目前竹塑发泡材料存在的强度差、功能性不完善进行改进,本发明采用的技术方案如下:
1. 一种保温隔热、可除甲醛的竹塑发泡复合门窗材料,其特征在于,由以下重量份的原料制成:
膨胀珍珠岩3-5,等规聚丙烯60-70,椰子壳粉1-2,高熔体强度聚丙烯10-15,竹粉30-40,活性炭10-15,刚玉粉1-2,正丁胺0.2-0.5,Cu(NO3)2 20-25,硬脂酸1-3,硬脂酸钙1-3,发泡剂AC1601 1-3,硬脂酸锌10-15, NaOH溶液50-60,聚丙烯酸酯乳液1-3;
所述竹粉的粒径为90-350μm,NaOH溶液浓度为1mol/L,Cu(NO3)2浓度为0.1 mol/L,聚丙烯酸酯乳液的固含量为40-50%。
2. 所述的一种保温隔热、可除甲醛的竹塑发泡复合门窗材料的制备方法,其特征在于,由以下步骤制成:
a. 将活性炭、刚玉粉加入到NaOH溶液中,搅拌10-15min后,浸泡1-2h,清水洗涤,过滤,50-100℃条件下干燥;聚丙烯酸酯乳液加入到Cu(NO3)2溶液中制成混合液,将干燥的活性炭和金刚石加入到该混合液中搅拌10-15min后,浸泡0.5-1h,90-130℃条件下烘干,N2气氛下,300-500℃焙烧3-5h,得到改性混合物;
b. 将竹粉在100-120℃条件下干燥6-10h,至绝干;然后将烘干的竹粉和膨胀珍珠岩、椰子壳粉、30-40份的等规聚丙烯一起加入到高速混合机中,搅拌升温至150-200℃,10-30min后冷却至30-50℃,继续搅拌6-10min后卸料,得到混合物;
c. 将步骤a所得改性混合物和步骤b所得混合物加入到剩余等规聚丙烯、高熔体强度聚丙烯混合物中,加入硬脂酸和硬脂酸钙,于高速混合机中混合8-12min,制得预混料;将预混料放入转矩流变仪中密练10-15min后,卸料粉碎,加入发泡剂AC1601和硬脂酸锌、正丁胺,搅拌均匀,经注塑机注塑成型。
3. 所述的转矩流变仪温度设置为160-220℃,转速为30-50 r·min-1。
本发明的有益效果是:用聚丙烯酸酯和Cu(NO3)2对活性炭和金刚石进行改性,促进了Cu(NO3)2在活性炭和金刚石表面和孔道中的负载,增大了其附着力,不易脱落,延长了催化寿命,赋予目标材料可吸附甲醛的功能,扩展其应用;在高温下煅烧,Cu(NO3)2会高温分解为CuO,可以有效地吸附降解甲醛,配合活性炭的吸附特性,达到优良的甲醛吸附效率;金刚石的加入也增大了该复合材料的力学强度和甲醛吸附效率;用等规聚丙烯对竹粉进行包裹,减少竹纤维分解,改善塑料基体与竹纤维的亲和性及流动性;配合利用高熔体强度聚丙烯制备竹塑发泡复合材料,使得该材料闭孔率高,具有质量轻、强度高、成本低的优点;配合添加的膨胀珍珠岩赋予该复合材料保温、隔热、隔音的性能。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解,下面结合具体实施例,进一步阐述本发明。
实施例
一种保温隔热、可除甲醛的竹塑发泡复合门窗材料,其特征在于,由以下重量份的原料制成:
膨胀珍珠岩5,等规聚丙烯70,椰子壳粉2,高熔体强度聚丙烯15,竹粉40,活性炭15,刚玉粉2,正丁胺0.5,Cu(NO3)2 25,硬脂酸3,硬脂酸钙3,发泡剂AC1601 3,硬脂酸锌15, NaOH溶液60,聚丙烯酸酯乳液3;
所述竹粉的粒径为90-350μm,NaOH溶液浓度为1mol/L,Cu(NO3)2浓度为0.1 mol/L,聚丙烯酸酯乳液的固含量为40-50%。
所述的一种保温隔热、可除甲醛的竹塑发泡复合门窗材料的制备方法,其特征在于,由以下步骤制成:
a. 将活性炭、刚玉粉加入到NaOH溶液中,搅拌10-15min后,浸泡1-2h,清水洗涤,过滤,50-100℃条件下干燥;聚丙烯酸酯乳液加入到Cu(NO3)2溶液中制成混合液,将干燥的活性炭和金刚石加入到该混合液中搅拌10-15min后,浸泡0.5-1h,90-130℃条件下烘干,N2气氛下,300-500℃焙烧3-5h,得到改性混合物;
b. 将竹粉在100-120℃条件下干燥6-10h,至绝干;然后将烘干的竹粉和膨胀珍珠岩、椰子壳粉、30-40份的等规聚丙烯一起加入到高速混合机中,搅拌升温至150-200℃,10-30min后冷却至30-50℃,继续搅拌6-10min后卸料,得到混合物;
c. 将步骤a所得改性混合物和步骤b所得混合物加入到剩余等规聚丙烯、高熔体强度聚丙烯混合物中,加入硬脂酸和硬脂酸钙,于高速混合机中混合8-12min,制得预混料;将预混料放入转矩流变仪中密练10-15min后,卸料粉碎,加入发泡剂AC1601和硬脂酸锌、正丁胺,搅拌均匀,经注塑机注塑成型。
所述的转矩流变仪温度设置为160-220℃,转速为30-50 r·min-1。
本发明的技术指标为:
甲醛吸附率 ≥2.5mg/g;
弯曲强度≥40MPa;
比缺口冲击强度≥5 kJ·m-2。
Claims (3)
1.一种保温隔热、可除甲醛的竹塑发泡复合门窗材料,其特征在于,由以下重量份的原料制成:
膨胀珍珠岩3-5,等规聚丙烯60-70,椰子壳粉1-2,高熔体强度聚丙烯10-15,竹粉30-40,活性炭10-15,刚玉粉1-2,正丁胺0.2-0.5,Cu(NO3)2 20-25,硬脂酸1-3,硬脂酸钙1-3,发泡剂AC1601 1-3,硬脂酸锌10-15, NaOH溶液50-60,聚丙烯酸酯乳液1-3;
所述竹粉的粒径为90-350μm,NaOH溶液浓度为1mol/L,Cu(NO3)2浓度为0.1 mol/L,聚丙烯酸酯乳液的固含量为40-50%。
2.根据权利要求1所述的一种保温隔热、可除甲醛的竹塑发泡复合门窗材料的制备方法,其特征在于,由以下步骤制成:
a. 将活性炭、刚玉粉加入到NaOH溶液中,搅拌10-15min后,浸泡1-2h,清水洗涤,过滤,50-100℃条件下干燥;聚丙烯酸酯乳液加入到Cu(NO3)2溶液中制成混合液,将干燥的活性炭和金刚石加入到该混合液中搅拌10-15min后,浸泡0.5-1h,90-130℃条件下烘干,N2气氛下,300-500℃焙烧3-5h,得到改性混合物;
b. 将竹粉在100-120℃条件下干燥6-10h,至绝干;然后将烘干的竹粉和膨胀珍珠岩、椰子壳粉、30-40份的等规聚丙烯一起加入到高速混合机中,搅拌升温至150-200℃,10-30min后冷却至30-50℃,继续搅拌6-10min后卸料,得到混合物;
c. 将步骤a所得改性混合物和步骤b所得混合物加入到剩余等规聚丙烯、高熔体强度聚丙烯混合物中,加入硬脂酸和硬脂酸钙,于高速混合机中混合8-12min,制得预混料;将预混料放入转矩流变仪中密练10-15min后,卸料粉碎,加入发泡剂AC1601和硬脂酸锌、正丁胺,搅拌均匀,经注塑机注塑成型。
3.根据权利要求2所述的一种保温隔热、可除甲醛的竹塑发泡复合门窗材料的制备方法,其特征在于,所述的转矩流变仪温度设置为160-220℃,转速为30-50 r·min-1。
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