CN101397375B - Low foaming one kind of pvc wood decorative material and method - Google Patents

Low foaming one kind of pvc wood decorative material and method Download PDF

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CN101397375B
CN101397375B CN 200710046502 CN200710046502A CN101397375B CN 101397375 B CN101397375 B CN 101397375B CN 200710046502 CN200710046502 CN 200710046502 CN 200710046502 A CN200710046502 A CN 200710046502A CN 101397375 B CN101397375 B CN 101397375B
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wood
wood powder
pvc
barrel
decorative material
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CN101397375A (en
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张龙喜
陈恒财
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上海国成塑料有限公司
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Abstract

本发明涉及一种木塑材料,特别涉及一种PVC低发泡木塑装饰材料。 The present invention relates to a wood material, particularly to a low-foam PVC wood decorative material. PVC低发泡木塑装饰材料,其特征在于,其配方包括以下质量百分比计的原料:PVC树脂,40~80%;木质粉,20~50%;发泡剂,1~5%;钛酸酯偶联剂,1~3%;工业白油,1~3%;其中钛酸酯偶联剂与工业白油的体积比为1∶1。 Low-foam PVC wood decorative material, characterized in that it comprises a formulation of the following percentages by mass of the raw material: PVC resin, 40 to 80%; wood powder, 20 to 50%; foaming agent, 1 to 5%; titanate ester coupling agent, 1 to 3%; industrial white oil, 1 to 3%; and wherein the volume of industrial white titanate coupling the ratio of 1. 本发明由于对木质粉的活化处理,使得木质粉与树脂表面相容性极大程度地增强,进而使材料的物化性能在很大程度上得以提高。 Since the present invention is activation treatment of wood powder, wood powder and the resin so that the surface greatly enhance the compatibility, thereby enabling the physical and chemical properties of the material can be improved largely. 本发明所述的PVC低发泡木塑装饰材料与目前国内现有的PVC微发泡木塑复合材料相比具有以下优点,质轻、理化性能优良、无毒(无铅、无甲醛),是实木装饰材料优良的替代品。 The present invention is a low foaming PVC wood decorative material currently existing micro-foam PVC wood-plastic composite material has the following advantages, light weight, excellent physical and chemical properties, non-toxic (lead-free, formaldehyde-free), wood decorative material is excellent alternatives.

Description

一种PVC低发泡木塑装饰材料及其制造方法 One kind of low-foam PVC wood decorative material and method

技术领域 FIELD

[0001] 本发明涉及一种木塑材料,特别涉及一种PVC低发泡木塑装饰材料。 [0001] The present invention relates to a wood material, particularly to a low-foam PVC wood decorative material. 本发明还涉及这种PVC低发泡木塑装饰材料的制造方法。 The present invention further relates to a method of manufacturing such low foam PVC wood decorative material.

背景技术 Background technique

[0002] 聚氯乙烯(PVC)基木塑复合材料是利用木粉、竹粉、谷糠、果壳粉或农作物秸秆粉(下面统称木质粉)和PVC树脂或废旧PVC塑料为主要原料,经混合和成型加工而制得的一种新型复合材料。 [0002] The polyvinyl chloride (PVC) based WPC using wood powder, bamboo powder, bran, nut shell flour or straw powder (hereinafter collectively referred to wood powder) and PVC resin or PVC waste plastic as the main raw material, a new composite material and molding the mixture obtained. 其制作原理是将PVC树脂与经粉碎的木质粉、稳定剂、润滑剂、发泡剂、发泡调节剂、着色剂等经单螺杆造粒机在高温高压下混炼制成规整的颗粒,再经单螺杆或锥形双螺杆挤出机由专业的PVC发泡模具挤出成型为具有使用价值的发泡制品。 The production principle is the PVC resin and the comminuted wood powder, stabilizers, lubricants, foaming agents, foam modifiers, colorants, and the like through a single screw granulator kneaded at high temperature and pressure made regular particles, then by a conical single screw or twin screw extruder by a professional PVC foam extrusion mold foamed article having a use value.

[0003] 众所周知,木质粉易吸水,表面含有大量的羟基基团,亲水性的木质粉和憎水性的聚合物表面之间存在较大的界面能差,从而使得木质粉在聚合物中不能均勻地分散而团聚,而这些团聚体在外力作用下易导致应力集中,使得制品的物理力学性能大幅度下降,因此在加工过程中必须对木质粉表面进行活化处理。 [0003] It is well known that wood powder easy to absorb water, containing a large amount of surface hydroxyl groups, there is a large difference in the interfacial energy between the wood powder and the hydrophilic polymer surface hydrophobic, such that the wood powder in the polymer can uniformly dispersed agglomerates, which agglomerates in the external force easily lead to stress concentration, so that the mechanical properties of products significant decline in physical, must therefore be surface activation treatment of wood flour during processing. 于是人们用偶联剂来对木质粉进行活化处理。 Thus it to activation treatment with a coupling agent wood powder.

[0004] 如授权公告日为2006年4月19日,授权公告号为CN1252165C的中国发明专利公开了一种木塑发泡材料及其加工成型工艺,就使用了偶联剂。 [0004] The authorized announcement of April 19, 2006, authorized announcement No. CN1252165C Chinese invention patent discloses a plastic foam material molding and processing, on the use of a coupling agent. 一种木塑发泡材料,其特征在于:所述的木塑发泡材料是指由下列原料按重量比混合而成,具体的比例和原料如下: One kind of plastic foam material, characterized in that: said plastic foam material is defined by the following raw materials are mixed by weight ratio, and the ratio of the specific raw materials as follows:

[0005] 聚乙烯 20〜 ^ 65份[0006] 木粉 10〜 ^ 70份[0007] 填料 4〜 8份[0008] 相容剂 2. 5 ' 〜4份[0009] 偶联剂 0. 5 ' 〜1份[0010] 润滑剂 0. 5 ' 〜1份[0011] 发泡剂 0. 5 ' 〜1. 5份[0012] 助发泡剂 0.5份 [0005] 65 parts of polyethylene 20~ ^ [0006] ^ 10~ 70 parts of wood flour [0007] 4 ~ 8 parts filler [0008] The compatibilizing agent 2.5 '~ 4 parts [0009] coupling agent 0.5 '~ 1 parts [0010] lubricant 0.5' parts of ~ 1 [0011] foaming agent 0.5 '~ 1. 5 parts [0012] 0.5 parts of co-blowing agent

[0013] 所述相容剂为马来酸酐接枝聚乙烯; [0013] The compatibilizing agent is maleic anhydride grafted polyethylene;

[0014] 所述偶联剂为硅烷类偶联剂、钛酸酯类偶联剂或铝酸酯、铝钛酸酯类偶联剂; [0014] The coupling agent is a silane coupling agent, titanate coupling agent or aluminum acetate, aluminum titanate coupling agent;

[0015] 所述发泡剂为偶氮二甲酰胺,所述助发泡剂为氧化锌。 [0015] The blowing agent is azodicarbonamide, the co-blowing agent is zinc oxide.

[0016] 其制备的工艺步骤如下: [0016] The preparation process steps as follows:

[0017] a)称量原料 [0017] a) As the starting material

[0018] b)将木粉加入高速混炼机中,在110〜120°C温度下将木粉烘干,加入偶联剂、润滑剂使木粉活化; [0018] b) The wood meal added to the high-speed mixer, the dried wood powder at a temperature of 110~120 ° C, is added a coupling agent, a lubricant wood flour activated;

[0019] c)加入相容剂、聚乙烯及发泡剂、助发泡剂混合均勻后,在120°C料温时放料入冷混机中冷却到40°C,成可发泡混合料; [0019] c) compatibilizer, and polyethylene, a foaming agent, uniformly mixing the co-blowing agent, at 120 ° C melt temperature discharge machine into a cold mixture was cooled to 40 ° C, mixed into a foamable material;

[0020] d)将该混合料投入挤出机料斗中,经挤出机挤出,经发泡模具发泡冷却定型,或投入注射机或热压模塑机中发泡成型。 [0020] d) the mix hopper into the extruder, the extruder, the foamed foaming mold cooling setting, or into an injection molding machine machine or a hot press foam molding.

[0021] 但是,现有技术中,添加的偶联剂无法较好地均勻分散在木质粉中,使得偶联剂的作用没有预期的好。 Effect [0021] However, the prior art, can not be added to the coupling agent is preferably uniformly dispersed in the wood powder, so that the coupling agent is not as good as expected.

发明内容 SUMMARY

[0022] 本发明所要解决的技术问题的第一方面在于,提出一种PVC低发泡木塑装饰材料,所述PVC低发泡木塑装饰材料的组分,使得偶联剂分散均勻,进而使得木质粉的活化水平提高,最终使得PVC低发泡木塑装饰材料物化性能在很大程度上得以提高。 [0022] The first aspect of the present invention to solve the technical problem is to propose a low-foam PVC wood decorative material, the component low foaming PVC wood decorative material, such coupling agent uniformly dispersed, and further so that the activation level of the wood powder is increased, so that the final low foaming PVC wood decorative material physical and chemical properties can be improved largely.

[0023] PVC低发泡木塑装饰材料,其配方包括钛酸酯偶联剂,其特征在于:其配方还包括与钛酸酯偶联剂体积比为1 : 0.5〜1.5的用于稀释所述钛酸酯偶联剂的工业白油。 [0023] PVC low foaming wood decorative material, which formulation comprises a titanate coupling agent, characterized in that: it further comprises a formulation with a titanate coupling agent is a volume ratio of 1: 0.5~1.5 for dilution said industrial white titanate coupling agent.

[0024] 若体积比高于1 : 0.5时,体系中的工业白油比例过高,而钛酸酯偶联剂在整个配方体系中的比例是固定的,因为工业白油是一种外润滑剂,其比例过高会导致物料和螺杆、 机筒之间的摩擦力下降,导致物料塑化不良,影响材料的物化性能。 [0024] When the volume ratio of greater than 1: 0.5, the ratio of industrial white oil in the system is too high, while the proportion in the overall formulation titanate coupling agent system is fixed, as is an external lubricating industrial white agent ratio is too high can lead to friction between the material and the screw, barrel decreased, resulting in poor plastics materials, the influence of the physical and chemical properties of the material. 而体积比低于1 : 1.5 时,体系中的工业白油比例会过低,而钛酸酯偶联剂在整个配方体系中的比例是固定的,因为工业白油是一种外润滑剂,其比例过低的话,导致物料的流动性不好,从而制品的表面有毛刺或不光滑。 And the volume ratio of less than 1: 1.5, the ratio of industrial white oil in the system will be too low, while the proportion in the overall formulation titanate coupling agent system is fixed, because the external lubricant is a mineral oil industry, the proportion is too low, resulting in poor flowability of the material, whereby the surface of the article or burr is not smooth.

[0025] 本发明对钛酸酯偶联剂进行稀释,使钛酸酯偶联剂均勻分散在木质粉体系中,从而使木质粉在最大程度上得以活化,使得木质粉与PVC树脂表面相容性极大程度地增强, 这样使得PVC低发泡木塑装饰材料的性能更为优良。 [0025] The present invention was diluted to a titanate coupling agent, a titanate coupling agent so that the wood meal is uniformly dispersed in the system, so that the wood powder is activated to the maximum extent, so that the wood surface is compatible with PVC resin powder of greatly enhanced, so that the low foaming properties of PVC wood decorative material more excellent.

[0026] 工业白油优选为10#工业白油。 [0026] preferably 10 # industrial white industrial white oil. 10#工业白油黏度适中,利于钛酸酯偶联剂在体系中分散;而15#、18#、24#工业白油黏度较高,不利于钛酸酯偶联剂在体系中的分散;故10# 工业白油适合稀释钛酸酯偶联剂。 10 # industrial white moderate viscosity, a titanate coupling agent facilitates the dispersion in the system; and # 15, # 18, # 24 high viscosity white oil industry, is not conducive to a titanate coupling agent dispersed in the system; therefore, industrial white # 10 for diluting a titanate coupling agent.

[0027] 本发明还提出了一种PVC低发泡木塑装饰材料的具体配方。 [0027] The present invention also provides specific formulations one kind of low-foam PVC wood decorative material. [0028] PVC低发泡木塑装饰材料,其配方包括以下质量百分比计的原料: [0029] PVC树脂 40 〜60%[0030] 木质粉 20 ' 〜40%[0031] 活性碳酸钙 5〜 20%[0032] 有机锡稳定剂 5%[0033] 复合稳定剂 5%[0034] 发泡剂 5%[0035] 发泡调节剂 5%[0036] 润滑剂 4%[0037] 钛酸酯偶联剂 3%[0038] 10#工业白油 1 - -3%[0039] 其中钛酸酯偶联剂与10#工业白油的体积比为1 : 1。 [0028] PVC low foaming wood decorative material, which formulation comprises the following percentages by mass of the starting material: [0029] PVC resin, 40 ~ 60% [0030] Wood flour 20 '~ 40% [0031] calcium carbonate -5 to 20 % [0032] organotin stabilizers are 5% [0033] 5% compound stabilizer [0034] 5% blowing agent [0035] The foam regulator 5% [0036] 4% lubricant [0037] The titanate coupling agent, 3% [0038] 10 # industrial white 1---3% [0039] wherein a titanate coupling agent and 10 # industrial white volume ratio of 1: 1. [0040] 进一步,其配方还包括抗紫外线剂0. 1 〜1%。 [0040] Further, formulations which further comprises an anti-UV agent 0.1 ~ 1%. [0041] 进一步,其配方还包括着色剂1〜3%。 [0041] Further, formulations which further comprises a colorant 1~3%. [0042] 活性碳酸钙是对轻质沉淀碳酸钙或1 I质碳酉 髮钙用活化剂、偶联剂 [0042] The light calcium carbonate is precipitated calcium carbonate or carbon 1 I made unitary with calcium activator, coupling agent

成,比表面积比普通碳酸钙大20倍左右,溶解度高约30倍。 To, specific surface area about 20 times larger than the average calcium carbonate, about 30-fold higher solubility. 广泛应用于塑料,橡胶行业,能改善制品的脱模性,增加表面光洁度和耐曲挠性,改善制品的加工性能、流动性能、物理机械性能和提高力学强度,增加填充量使制品的成本显著下降。 Widely used in plastics, rubber industry, can improve the releasability of the article, to increase the surface finish and flex resistance, to improve the processing performance of products, flow properties, improved mechanical properties and mechanical strength, increase of the content of the article significant cost decline.

[0043] 有机锡稳定剂是各种羧酸锡和硫醇锡的衍生物,主要产品是二丁基锡和二辛基锡的有机化合物,其中二辛基锡化合物被更多的国家作为无毒稳定剂使用。 [0043] Organotin stabilizers are various derivatives of tin carboxylates and tin mercaptides, dibutyl tin main product is dioctyl tin and an organic compound, wherein dioctyltin compounds are used as more countries nontoxic stabilizer. 有机锡主要用来稳定硬质PVC制品,特别是那些需要有优良透明性和热稳定性的产品,当然也能稳定软质制品。 Organotin mainly used to stabilize rigid PVC products, especially those that require excellent transparency and thermal stability of the product, of course, can be stably soft products.

[0044] 润滑剂,或者称为塑料润滑剂,是在制造塑料薄膜的过程中,加入增加滑性、减少粘合性与表面鱼眼的添加剂。 [0044] The lubricant, or lubricants known as plastics, in the process of manufacturing a plastic film is added to increase slipperiness, adhesiveness and surface additives to reduce fish eyes. 通常用于聚乙烯的润滑剂是长链脂肪酰胺,如油酸酰胺、芥酸酰胺、硬脂酸酰胺等,氧化聚乙烯及其酯化、钙(盐)化产物也是一类性能能优良的润滑剂。 Lubricants are typically used for polyethylene long chain fatty amides, such as oleic acid amide, erucic acid amide, stearic acid amide, oxidized polyethylene, and esterified, calcium (salts) product is also a class of superior performance can lubricant. 塑料润滑剂还具有以下的作用:能调节胶化速度;控制树脂熔融温度;改进脱膜性与加工性;改进流动性,增加混合性,减少动力消耗;提高尺寸稳定性;提高外观、光泽、手感等表面性能;改进添加剂的分散性等。 Lubricants plastic also has the following effect: gelling speed can be adjusted; resin temperature control; improved processability and releasability; improve flowability, increase mixing and reduce power consumption; improve the dimensional stability; improved appearance, gloss, surface feel properties and the like; and the like to improve dispersibility of additives.

[0045] 本发明的目的的另一方面在于提出上述PVC低发泡木塑装饰材料的制造方法。 [0045] The object of another aspect of the present invention to provide a method for producing the wood decorative PVC low foam material.

[0046] 一种制造上述PVC低发泡木塑装饰材料的方法,包括的步骤有木质粉的活化处理、原料混合、造粒、挤出成型;其特征在于,木质粉活化处理步骤为:将木质粉在高速混合机下混至110°C〜120°C除去其中的水分,然后加入用工业白油按体积比1 : 1稀释过的钛酸酯偶联剂高速混合5分钟。 [0046] A method for manufacturing the above low foam PVC wood decorative material, comprising the steps of an activation treatment wood powder, mixing raw materials, granulation, extrusion molding; wherein wood powder activated and the process step of: wood powder mixed in a high speed mixer to 110 ° C~120 ° C to remove water, industrial white with a volume ratio of 1 was then added: 1 diluted titanate coupling agent mixed at high speed for 5 minutes.

[0047] 在木质粉活化处理前,将木质粉干燥,使得其水份控制在2%以下。 [0047] In the activation treatment before the wood powder, the wood powder was dried, so that it is below 2% moisture control.

[0048] 钛酸酯偶联剂分子结构很不稳定,在水性环境下容易水解并自身聚合为二聚体或三聚体。 [0048] Titanate coupling agent molecular structure is very unstable, easily hydrolyzed and polymerized by itself is a dimer or trimer in an aqueous environment. 木粉本身经干燥后还有2%左右的水份,从而会使钛酸酯偶联剂失去活化的效果。 After drying wood itself as well as about 2% moisture, a titanate coupling agent will thereby lose the effect of activation. 经大量试验数据表明,木质粉在高混机中高速搅拌,当体系的温度升到110°C时其含水量为1.0%左右,综合加工成本比较,此时适合用钛酸酯对其进行活化处理。 The large number of experimental data show that the wood powder was stirred in a high-speed mixing machine, when the temperature of the system was raised to 110 ° C a water content of about 1.0%, more integrated processing costs, then subjected to suitable activating titanate deal with.

[0049] 将木质粉活化处理后冷却至50°C密封包装。 [0049] After the activation treatment the wood powder was cooled to 50 ° C sealed packaging. 冷却至50°C,防止过高温度包装时, 木粉自然冷却时结块。 Upon cooling to 50 ° C, to prevent excessive temperatures packaging, wood flour caking natural cooling.

[0050] 在造粒前进行造粒预塑化处理。 [0050] preplasticizing granulation process before the granulation step.

[0051] 原料的混合过程如下:将PVC树脂加入高混机中,再加入有机锡稳定剂和复合稳定剂,混合至90°C后加入活性碳酸钙、活化的木质粉和发泡剂、发泡调节剂、润滑剂、抗紫外线剂、着色剂,混合至120°C下料冷混至50°C即可。 Mixing Process [0051] The starting material is as follows: The PVC resin was added in a high speed mixer, then add the organic tin compound stabilizer and a stabilizer, mixing after addition of calcium carbonate to 90 ° C, activated wood powder and the foaming agent, fat the foam regulators, lubricants, anti-UV agents, colorants, mixed feed to 120 ° C to 50 ° C cold mix can. 选120°C热混完成,是因为此时的水份已较大程度得以除去(1.0%左右);而冷混至50°C,这样造粒过程中粉料在造粒机料斗中不会驾桥而导致造粒过程中出现断料现象。 Selected from the 120 ° C hot mix is ​​complete, because at this time the water has been to a large extent (about 1.0%) was removed; and the mixture cooled to 50 ° C, so granulation process in a granulator without powder hopper drive off the bridge leading to material phenomena that occur during granulation.

[0052] 造粒温度控制如下:机筒一区,100〜110°C ;机筒二区,110〜120°C ;机筒三区, 130〜140°C ;机筒四区,150〜160°C ;模头温度,150〜160°C。 [0052] The granulation temperature controlled as follows: a barrel zone, 100~110 ° C; II barrel, 110~120 ° C; three-zone barrel, 130~140 ° C; four zone barrel, 150~160 ° C; die temperature, 150~160 ° C.

[0053] 挤出成型的工艺条件控制如下: [0053] The extrusion process conditions controlled as follows:

[0054]主机转速,600 〜700r/min ;牵引速度,110 〜120r/min ;机筒一区,120 〜130°C ; 机筒二区,150〜160°C ;机筒三区,160〜170°C ;机筒四区,190〜200°C ;模具温度,140〜 160 0C ;冷却循环水温度,10〜15°C。 [0054] The host speed, 600 ~700r / min; drawing speed, 110 ~120r / min; a barrel zone, 120 ~130 ° C; II barrel, 150~160 ° C; three-zone barrel, 160~ 170 ° C; barrel IV, 190~200 ° C; mold temperature, 140~ 160 0C; circulating cooling water temperature, 10~15 ° C.

[0055] 本发明所述的PVC低发泡木塑装饰材料与目前国内现有的PVC微发泡木塑复合材料相比具有以下优点,质轻、理化性能优良、无毒(无铅、无甲醛),是实木装饰材料优良的替代品。 [0055] The present invention is a low foaming PVC wood decorative material as compared with currently existing micro-foam PVC wood composites have the advantage, excellent light, physical and chemical properties, non-toxic (lead-free, formaldehyde), solid wood decorative materials excellent alternatives. [0056] 下面以对比实验数据说明按上述PVC低发泡木塑装饰材料的具体配方和上述制造PVC低发泡木塑装饰材料的方法制得的PVC低发泡木塑装饰材料的性能的优越性。 [0056] In comparative experiments the following data illustrate the superior performance of the method of the above-described low-foam PVC wood decorative material and said specific formulations for producing low-foam PVC wood decorative material was low-foam PVC wood decorative material sex.

[0057] [0057]

Figure CN101397375BD00061

具体实施方式 Detailed ways

[0058] 为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,下面结合具体实施方式,进一步阐述本发明。 [0058] In order to achieve the technical means of the present invention, the creation of features, to achieve the purpose and effect readily apparent understanding, the following embodiment with reference to specific embodiments, further illustrate the present invention.

[0059] 实施例1 [0059] Example 1

[0060] 先将木质粉(细度:80〜100目)干燥,使得其水份控制在2%以下;取烘干后的木质粉IOOkg加入混料机中高速搅拌至110°C (依靠物料和桶壁、搅拌叶片间的摩擦生热, 高速运转时主电机转速为1470r/min),后加入4kg用10#工业白油稀释过的钛酸酯偶联剂高速混合5分钟再冷却混至50°C密封包装。 [0060] The first wood powder (the fineness: 80 ~ 100 mesh) was dried, so that it is below 2% moisture control; IOOkg wood powder after drying is taken in high-speed mixer was added with stirring to 110 ° C (Material rely and the bucket wall, the friction heat between the stirring blades, high-speed operation of the main motor speed is 1470r / min), after addition of 4kg diluted with 10 # industrial white titanate coupling agent had high speed mixing for 5 minutes and then cooled to 50 ° C sealed packaging.

[0061 ] 取75kg的PVC树脂(800型)加入高混机中,再加入1〜3kg有机锡稳定剂和3〜 IOkg的复合稳定剂,混合至90°C后加入活性碳酸钙5〜10kg、活化木质粉30〜50kg和发泡剂、发泡调节剂、润滑剂、抗紫外线剂、着色剂混合至120°C下料冷混至50°C即可。 After the PVC resin [0061] 75kg of taking (800) was added in a high speed mixer, then add 1~3kg organotin stabilizer and 3~ IOkg composite stabilizer, mixing until 90 ° C was added calcium carbonate 5~10kg, 30~50kg wood powder and activated foaming agent, regulators, lubricants, anti-UV agents, colorants feed mixture to cool to 50 ° C can be blended at 120 ° C. [0062] 由于木质粉主要成份是纤维素,加热不熔化且在体系中填充的含量最高,所以从制品成型效果来看,应对混合的体系进行造粒预塑化处理,由于体系中含有的偶氮系列的发泡剂遇高温分解并且PVC树脂由于其自身结构不稳定性等原因,在高温高压下极易分解为氯化氢气体,进而影响制品的发泡效果和物理力学性能。 [0062] Since the main ingredient is cellulose wood flour, heat does not melt and fill the highest level in the system, so the molded article from the point of view, to deal with the pre-mixed plasticizing system granulation process, since the coupling system contained nitrogen blowing agent when the temperature range and the decomposition of PVC resin itself due to its structural instability, etc., easily decomposed at high temperature and pressure of hydrogen chloride gas, thereby affecting the physical and mechanical properties and the foaming effect of the article. 因此在造粒的过程中必须严格控制其造粒工艺温度并且造粒设备的螺杆应选择专业的PVC发泡造粒螺杆,其螺杆长径比为15 〜20 : 1。 Therefore, in the granulation granulation process must be strictly controlled temperature and screw granulation equipment should be selected professional pelletized PVC foam screw, the screw length to diameter ratio 15 ~ 20: 1.

[0063] 造粒的温度控制如下: [0063] The granulation temperature controlled as follows:

[0064] 机筒一区,100〜110°C ;机筒二区,110〜120°C ;机筒三区,130〜140°C ;机筒四区,150〜160°C ;模头温度,150〜160°C。 [0064] a barrel zone, 100~110 ° C; II barrel, 110~120 ° C; three-zone barrel, 130~140 ° C; barrel IV, 150~160 ° C; die temperature , 150~160 ° C.

[0065] 再将造好的木塑发泡粒子用专业木塑发泡挤出设备挤出成型,其工艺控制如下: [0065] Good manufacturing plastic foam particles are then extruded plastic foam professional equipment extrusion, which process is controlled as follows:

[0066]主机转速,600 〜700r/min ;牵引速度,110 〜120r/min ;机筒一区,120 〜130°C ; 机筒二区,150〜160°C ;机筒三区,160〜170°C ;机筒四区,190〜200°C ;模具温度,140〜 160 0C ;冷却循环水温度,10〜15°C。 [0066] The host speed, 600 ~700r / min; drawing speed, 110 ~120r / min; a barrel zone, 120 ~130 ° C; II barrel, 150~160 ° C; three-zone barrel, 160~ 170 ° C; barrel IV, 190~200 ° C; mold temperature, 140~ 160 0C; circulating cooling water temperature, 10~15 ° C.

[0067] 以上显示和描述了本发明的基本原理、主要特征和本发明的优点。 [0067] The above and described the principles of the invention, the main features and advantages of the present invention. 本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。 The industry the art will appreciate, the present invention is not limited to the above embodiment, the above-described examples and embodiments described in the specification are only illustrative of the principles of the present invention, without departing from the spirit and scope of the present invention, the present invention also have the respective variations and modifications, changes and modifications which fall within the scope of the claimed invention. 本发明要求保护范围由所附的权利要求书及其等同物界定。 The scope of the invention as claimed by the appended claims and equivalents thereof defined.

Claims (1)

1.PVC低发泡木塑装饰材料,其特征在于,其配方包括以下质量百分比计的原料:PVC树脂 40 〜60%木质粉 20 - 一40%活性碳酸钙 5〜 20% ;有机锡稳定剂 5% ;复合稳定剂 5% ;发泡剂 5% ;发泡调节剂 5% ;润滑剂 4% ;钛酸酯偶联剂 3% ;10#工业白油 1〜 -3% ;抗紫外线剂 0. 1 〜着色剂 1〜 3% ;其中钛酸酯偶联剂与10#工业白油的体积比为1 : 1;该PVC低发泡木塑装饰材料由木质粉的活化处理步骤、原料混合步骤、造粒步骤、挤出成型步骤制备而成,在造粒步骤前进行造粒预塑化处理;所述木质粉活化处理步骤为:将木质粉在高速混合机下混至110°C〜120°C除去其中的水分,然后加入用工业白油按体积比1 : 1稀释过的钛酸酯偶联剂高速混合5分钟,木质粉活化处理后冷却至50°C密封包装;在木质粉活化处理前,将木质粉干燥,使得其水份控制在2%以下;原料混合步骤过程 1.PVC low foaming wood decorative material, characterized in that it comprises a formulation of the following percentages by mass of the raw material: PVC resin, 40 ~ 60% of wood powder 20 - One -5 to 40% calcium carbonate 20%; organotin stabilizer 5%; 5% compound stabilizer; 5% blowing agent; foam regulator 5%; 4% lubricant; titanate coupling agent, 3%; industrial white oil # 1 ~ 10 -3%; UV agent 1 ~ 0.1 ~ 3% of a colorant; and a titanate coupling agent wherein industrial white # 10 a volume ratio of 1: 1; the low foam PVC wood decorative material wood powder activation treatment step, the raw material the mixing step, granulating step, prepared by an extrusion step, pre-plasticized granulation step prior to granulation; the wood powder activated process steps: the wood powder mixture to 110 ° C at a high speed mixer ~120 ° C to remove water therein, followed by addition of 1 volume ratio with industrial white oil: 1 diluted titanate coupling agent mixed at high speed for 5 minutes and cooled to process the wood powder activated sealed packaging 50 ° C; in the wood powder before activation treatment, the wood powder was dried, so that it is below 2% moisture control; raw material mixing step 如下:将PVC树脂加入高混机中,再加入有机锡稳定剂和复合稳定剂,混合至90°C后加入活性碳酸钙、活化的木质粉和发泡剂、发泡调节剂、润滑剂、抗紫外线剂、着色剂,混合至120°C下料冷混至50°C即可;所述造粒步骤温度控制如下:机筒一区,100〜110°C ;机筒二区,110〜120°C ;机筒三区,130〜140°C ;机筒四区,150〜160°C ;模头温度,150〜160°C ;造粒设备的螺杆应选择专业的PVC发泡造粒螺杆,其螺杆长径比为15〜20 : 1 ; 挤出成型步骤的工艺条件控制如下:主机转速,600〜700r/min ;牵引速度,110〜120r/min机筒一区,120〜130°C ;机筒二区,150〜160°C ;机筒三区,160〜170°C ;机筒四区,190〜200°C ;模具温度,140〜160°C ; 冷却循环水温度,10〜15°C。 As follows: The PVC resin was added in a high speed mixer, then add the organic tin compound stabilizers and stabilizer, calcium carbonate was added after mixing to 90 ° C, the wood powder and activated foaming agent, adjusting agent, a lubricant, the anti-UV agents, colorants, mixed feed to 120 ° C to 50 ° C cold mix can; said granulation step temperature controlled as follows: a barrel zone, 100~110 ° C; II barrel, 110~ 120 ° C; three-zone barrel, 130~140 ° C; barrel IV, 150~160 ° C; die temperature, 150~160 ° C; screw granulation equipment should be selected professional pelletized PVC foam screw, the screw length to diameter ratio 15 ~ 20: 1; extrusion step of controlling process conditions as follows: host speed, 600~700r / min; drawing speed, 110~120r / min a barrel zone, 120~130 ° C; barrel II, 150~160 ° C; three-zone barrel, 160~170 ° C; barrel IV, 190~200 ° C; mold temperature, 140~160 ° C; cooling water temperature, 10 ~15 ° C.
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