Shanghai Daoqin Plastics Co., Ltd.

        随 market demand day growth, technology by fast speed deep 挖, 塑木也 usually 叫木塑, use powder material fiber filling, 跟PE, or 者PVC and other resin mixed combined, again according to need add upper versus modified material, extrusion or injection molding made as 出 材 material 包括(type 材, sheet/plate 材, 城市绿化 consumption and other), from function upper substitute/replace and plastics.

        木塑 product ratio pure plastics or is pure and other, cost need low more, can use recycling waste 弃 植 material fiber,木材 processing in waste powder and use recycling plastics, has ring and 资源 充 separation utilizing, tool has and plastics advantages, low density, low cost, resistant water, resistant 蛀; used for 木塑 木 powder has powder, powder, housing/shell powder, 麦杆, housing/shell, 甘蔗渣 and other, used for resin has PVC,PE,PP, its in PE占70%, PVC占13%, PP占17%[3], due to price rise,导致以石油 is raw materials PE,PP price rise,而PVC price 平稳, to PVC基础材 material composite/compounding material development machine 会. 当然并 is cost low 我们就 can this for products material force force property can has very large effect/influence, through production, can specific analysis lower.

        木塑 product ratio pure plastics or is pure and other, cost need low more, can use recycling waste 弃 植 material fiber,木材 processing in waste powder and use recycling plastics, has ring and 资源 充 separation utilizing, tool has and plastics advantages, low density, low cost, resistant water, resistant 蛀; used for 木塑 木 powder has powder, powder, housing/shell powder, 麦杆, housing/shell, 甘蔗渣 and other, used for resin has PVC,PE,PP, its in PE占70%, PVC占13%, PP占17%[3], due to price rise,导致以石油 is raw materials PE,PP price rise,而PVC price 平稳, to PVC基础材 material composite/compounding material development machine 会. 当然并 is cost low 我们就 can this for products material force force property can has very large effect/influence, through 实验, can specific analysis lower.

        首先我们 need 知道木 powder main/primary formed is fiber 素+木质素+ semi fiber 素, another its it has machine material and water 份. in 实际生 active in add upper resin powder.

         PVC+木 powder and other material fiber mixed combined material mixed 匀, in 170℃ di 辊筒塑炼 machine upper mixing/compounding 5min, sheet/slice, pressure sheet/slice, made 样, notched impact strength 按GB1843-80 standards in ZBC-25B type impact experiment/testing machine upper 进行; tensile property can 按GB/T1040-92 standards in CMT6104 type can electronics experiment/testing machine upper 进行. bending property can 按GB1042-79 standards testing. will impact strip/profile use liquid nitrogen cooling, rear 脆断, in upper true 空镀金, through electrical 镜进行扫描.

        一, powder water in production types effect/influence force amount

         through 实验, 我们发现 will powder add hot 时, water 份首先蒸发, rear is 木质素 easy separation understanding separation separation understanding, 进一步 rise temperature fiber oxidation separation understanding, most rear 木质素发生 separation understanding. use dry or dry 处理不 to 位 木 powder filling modified plastics 时, due to powder in water and powder in low 沸点挥发 property material 质 存 in, make sample in has versus bubbles in, material force property can to obvious effect/influence; meanwhile, add hot 处理也 can in processing process in 出现“烧” phenomenon, ensure processing 顺利, products light 亮, color positive 常. therefore, powder in filling front must drying. powder in add hot 初期, weight decrease amount value comparison large, is add hot 时, powder water 份挥发, 1 small rear, powder decrease amount value basic 不变, in 110℃, 130℃ lower powder decrease heavy main/primary is water 份挥发. in temperature degree 150℃ lower, powder in add hot 初期, weight decrease amount value comparison large, main/primary is water 份, add hot time long, powder decrease amount value comparison 平缓, this powder main/primary is low 沸点挥发 property material 质. add hot 时, temperature degree low, time short, powder decrease amount 不足3%, temperature degree high, add hot time long, powder decrease amount, is 无意义 and 不经济. from property can and 经济二方面结 combined 考虑, powder add hot temperature degree in 110℃, 130℃, decrease amount scope/range 5-10% is 宜.

        二, resin selection for products force property can effect/influence

        木 powder high filling, effect/influence PVC property can and processing flow property, according to resin melt flow rate (MFR) selection resin Model/Grade, MFR for composite/compounding material property can has effect/influence, in same processing process conditions lower, resin MFR relatively high, powder 总体浸 lubricating property relatively good, powder distribution uniform, powder lubricating property and distribution effect/influence composite/compounding material mechanical properties, especially is impact strong/high degree. polyvinyl chloride (PVC) polymerization degree small, resin MFR越 high, through PVC resin provide parameters difficult 看出, PVC SG-7 or PVC SG-8 viscous relatively low, MFR relatively high, therefore, PVC SG-7 or PVC SG-8 comparison combined 做PVC/木塑 composite/compounding material resin.

        三, powder selection for products force property can effect/influence

        木 powder is machine powder formed, different 粒径 木 powder in powder process in force is different, therefore different 粒径 木 powder tool has different surface coarse degree and long ratio, and 木材本身 “ micro structure ” 遭受 破 bad degree different. powder 粒径越 large, its surface coarse degree large, surface coarse degree for property can effect/influence performance is:

        ①木材 and plastics formed good 浸渍;

        ② in interface formed relatively deep interface expand dispersion and machine 械互锁.

        如不 can in interface formed relatively deep interface expand dispersion and machine 械互锁, in interface formed 空洞, 导致材 material property can decline. using/adopting 60目, 100目, 300目 木 powder filling PVC, use below/following formulation

        PVC powder SG-7 100

         stabilizer 3.5

         inner, outer lubricant 0.5~2.0

        AC foaming agent 0.3~0.5

        ACR foaming processing additives 5.0~8.0

         filler 4.0~6.0

         flame retardant 2.0~3.0

         nucleating agent 0.2~0.7

         increase agent 5.0~10.0

         modified 处理木 powder 20.0~30.0

         inner, outer lubricant 0.5~2.0

        AC foaming agent 0.3~0.5

        ACR foaming processing additives 5.0~8.0

         filler 4.0~6.0

         flame retardant 2.0~3.0

         nucleating agent 0.2~0.7

         increase agent 5.0~10.0

         modified 处理木 powder 20.0~30.0

        我们发现随 filling PVC木 powder 粒径 变化, PVC/木 powder composite/compounding material impact strong/high degree and flexural strength 出现先 upper rise rear decline trend, this type of trend by PVC/木 powder composite/compounding material electrical 镜 证实, 60目木 powder, surface coarse degree high, structure hydrophobic 松, PVC resin can toward powder in 渗透, pellets relatively more, powder 周围空洞 relatively more;300目木 powder, small, powder easy poly; this defect formed force in, in relatively small function force lower, easy fracture. 而100目木 powder, 粒径适 in, PVC resin and powder interface versus property good, therefore, impact strong/high degree and flexural strength most large value.

         through 实验我们 summary is: PVC SG-7 or PVC SG-8 comparison combined 做PVC/木塑 composite/compounding material resin;100目木 powder, 粒径适 in, and PVC resin versus property good, impact strong/high degree and flexural strength most large value;木 powder filling PVC事先 drying temperature degree 110℃ is good.